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MDedge conference coverage features onsite reporting of the latest study results and expert perspectives from leading researchers.
Quizartinib boosts AML survival, regardless of SCT
The research shows that “FLT3 inhibitors are most effective in patients who are minimal residual disease (MRD) positive before allo-HCT,” first author Richard Schlenk, MD, of Heidelberg (Germany) University Hospital and the German Cancer Research Center, Heidelberg, said in an interview.
The findings are from a post-hoc analysis of the phase 3, multicenter QuANTUM-First trial, which involved patients with the FLT3-ITD mutation, who make up about a quarter of those with AML and who can have shorter survival and increased risk of relapse, compared with patients without the mutation. The current post-hoc analysis of the trial was presented at the European Hematology Association 2023 Congress.
The trial, published in April in The Lancet, showed significant benefits in newly diagnosed patients with FLT3-ITD AML who were treated with quizartinib and standard induction and consolidation therapy and then continued on quizartinib as monotherapy for up to 3 years.
In the trial, quizartinib, combined with standard cytarabine and anthracycline induction and standard cytarabine consolidation chemotherapy, and continued as monotherapy following consolidation, was associated with a significant improvement in overall survival versus placebo (median 31.9 months versus 15.1 months, respectively; hazard ratio, 0.776; P = .0324).
For the post hoc analysis of the trial, the authors sought to evaluate if the effects were observed regardless of whether or not allo-HCT was received – which may not be recommended when patients go into remission after the first round of chemotherapy. The issue is important, as efficacy of other targeted therapy with the FLT3 inhibitors has been associated with allo-HCT treatment.
“Midostaurin, for example is mostly effective if [the drug] is followed by allo-HCT, and much less effective [no significant improvement] without allo-HCT,” Dr. Schlenk said.
The authors also sought to evaluate the relationship between minimal residual disease (MRD) prior to allo-HCT in FLT3-ITD and overall survival.
For the trial, 539 patients, with a median age of 56 were randomized to quizartinib (n = 268) or placebo (n = 271), and 147 patients (54.9%) in the quizartinib arm and 150 (55.4%) in the placebo arm achieved complete remission after induction. The rates of incomplete hematologic recovery (CRi) were 16.8% and 9.6%, respectively.
Of those achieving complete remission, 57.1% of patients on quizartinib and 48.7% of those receiving placebo underwent allo-HCT in the first complete remission. The median time to allo-HCT in the two groups was 3.5 months with quizartinib and 3.3 months for placebo.
Following the completion of allo-HCT, 61 patients (72.6%) receiving quizartinib and 36 (49.3%) receiving placebo started 3 years of continuation monotherapy.
In addition, 115 patients received allo-HCT outside of CR1, including 60 on quizartinib and 55 on placebo.
After adjustment for factors including region, age, and white blood count, patients treated with quizartinib treatment had a significantly higher overall survival (HR, 0.770; P = .0284), as did those receiving allo-HCT in CR1 (HR, 0.424; P < .0001).
Furthermore, patients receiving quizartinib had a longer overall survival regardless of whether they received allo-HCT in CR1 or not.
Of note, quizartinib-treated patients who were MRD positive prior to their allo-HCT transplant had a longer overall survival versus placebo (HR, 0.471); as did those who were MRD negative (HR, 0.717), to a lesser degree.
There were no new safety signals identified among patients undergoing allo-HCT.
Of note, cytomegalovirus infection was more common in the quizartinib group (11.8%) versus placebo (5.5%), while decreased appetite was less common with quizartinib (2.9%) versus placebo (12.1%).
Asked by an audience member about any risk of graft-versus-host disease (GVHD), Dr. Schlenk noted that “no difference between the quizartinib and placebo arms has been observed in GVHD acute and chronic.”
He added that patients “appear to benefit more from quizartinib if they have higher allelic frequency versus lower, overall,” and that younger patients, in general, showed greater benefit from quizartinib versus those over 60.
In general, “we see that for patients receiving allo-HCT transplantation, it’s beneficial to be randomized in the quizartinib arm [while] patients who did not undergo allo-HCT in first complete remission benefit equally when treated with quizartinib versus placebo,” he said in presenting the findings at the EHA meeting.
“And irrespective of pre–allo-HCT MRD status, longer survival was observed in those treated with quizartinib versus placebo, but most benefit was observed in those who were MRD positive.”
Quizartinib was approved in Japan this year in combination with chemotherapy for patients with newly diagnosed AML whose tumors harbor FLT3-ITD mutations.
The drug was granted a priority review by the U.S. Food and Drug Administration in October 2022. While the target action date was in April, a new decision date of July 21, 2023, is expected.
The study was sponsored by Daiichi Sankyo. Dr. Schlenk reported relationships with Daiichi Sankyo and other companies.
The research shows that “FLT3 inhibitors are most effective in patients who are minimal residual disease (MRD) positive before allo-HCT,” first author Richard Schlenk, MD, of Heidelberg (Germany) University Hospital and the German Cancer Research Center, Heidelberg, said in an interview.
The findings are from a post-hoc analysis of the phase 3, multicenter QuANTUM-First trial, which involved patients with the FLT3-ITD mutation, who make up about a quarter of those with AML and who can have shorter survival and increased risk of relapse, compared with patients without the mutation. The current post-hoc analysis of the trial was presented at the European Hematology Association 2023 Congress.
The trial, published in April in The Lancet, showed significant benefits in newly diagnosed patients with FLT3-ITD AML who were treated with quizartinib and standard induction and consolidation therapy and then continued on quizartinib as monotherapy for up to 3 years.
In the trial, quizartinib, combined with standard cytarabine and anthracycline induction and standard cytarabine consolidation chemotherapy, and continued as monotherapy following consolidation, was associated with a significant improvement in overall survival versus placebo (median 31.9 months versus 15.1 months, respectively; hazard ratio, 0.776; P = .0324).
For the post hoc analysis of the trial, the authors sought to evaluate if the effects were observed regardless of whether or not allo-HCT was received – which may not be recommended when patients go into remission after the first round of chemotherapy. The issue is important, as efficacy of other targeted therapy with the FLT3 inhibitors has been associated with allo-HCT treatment.
“Midostaurin, for example is mostly effective if [the drug] is followed by allo-HCT, and much less effective [no significant improvement] without allo-HCT,” Dr. Schlenk said.
The authors also sought to evaluate the relationship between minimal residual disease (MRD) prior to allo-HCT in FLT3-ITD and overall survival.
For the trial, 539 patients, with a median age of 56 were randomized to quizartinib (n = 268) or placebo (n = 271), and 147 patients (54.9%) in the quizartinib arm and 150 (55.4%) in the placebo arm achieved complete remission after induction. The rates of incomplete hematologic recovery (CRi) were 16.8% and 9.6%, respectively.
Of those achieving complete remission, 57.1% of patients on quizartinib and 48.7% of those receiving placebo underwent allo-HCT in the first complete remission. The median time to allo-HCT in the two groups was 3.5 months with quizartinib and 3.3 months for placebo.
Following the completion of allo-HCT, 61 patients (72.6%) receiving quizartinib and 36 (49.3%) receiving placebo started 3 years of continuation monotherapy.
In addition, 115 patients received allo-HCT outside of CR1, including 60 on quizartinib and 55 on placebo.
After adjustment for factors including region, age, and white blood count, patients treated with quizartinib treatment had a significantly higher overall survival (HR, 0.770; P = .0284), as did those receiving allo-HCT in CR1 (HR, 0.424; P < .0001).
Furthermore, patients receiving quizartinib had a longer overall survival regardless of whether they received allo-HCT in CR1 or not.
Of note, quizartinib-treated patients who were MRD positive prior to their allo-HCT transplant had a longer overall survival versus placebo (HR, 0.471); as did those who were MRD negative (HR, 0.717), to a lesser degree.
There were no new safety signals identified among patients undergoing allo-HCT.
Of note, cytomegalovirus infection was more common in the quizartinib group (11.8%) versus placebo (5.5%), while decreased appetite was less common with quizartinib (2.9%) versus placebo (12.1%).
Asked by an audience member about any risk of graft-versus-host disease (GVHD), Dr. Schlenk noted that “no difference between the quizartinib and placebo arms has been observed in GVHD acute and chronic.”
He added that patients “appear to benefit more from quizartinib if they have higher allelic frequency versus lower, overall,” and that younger patients, in general, showed greater benefit from quizartinib versus those over 60.
In general, “we see that for patients receiving allo-HCT transplantation, it’s beneficial to be randomized in the quizartinib arm [while] patients who did not undergo allo-HCT in first complete remission benefit equally when treated with quizartinib versus placebo,” he said in presenting the findings at the EHA meeting.
“And irrespective of pre–allo-HCT MRD status, longer survival was observed in those treated with quizartinib versus placebo, but most benefit was observed in those who were MRD positive.”
Quizartinib was approved in Japan this year in combination with chemotherapy for patients with newly diagnosed AML whose tumors harbor FLT3-ITD mutations.
The drug was granted a priority review by the U.S. Food and Drug Administration in October 2022. While the target action date was in April, a new decision date of July 21, 2023, is expected.
The study was sponsored by Daiichi Sankyo. Dr. Schlenk reported relationships with Daiichi Sankyo and other companies.
The research shows that “FLT3 inhibitors are most effective in patients who are minimal residual disease (MRD) positive before allo-HCT,” first author Richard Schlenk, MD, of Heidelberg (Germany) University Hospital and the German Cancer Research Center, Heidelberg, said in an interview.
The findings are from a post-hoc analysis of the phase 3, multicenter QuANTUM-First trial, which involved patients with the FLT3-ITD mutation, who make up about a quarter of those with AML and who can have shorter survival and increased risk of relapse, compared with patients without the mutation. The current post-hoc analysis of the trial was presented at the European Hematology Association 2023 Congress.
The trial, published in April in The Lancet, showed significant benefits in newly diagnosed patients with FLT3-ITD AML who were treated with quizartinib and standard induction and consolidation therapy and then continued on quizartinib as monotherapy for up to 3 years.
In the trial, quizartinib, combined with standard cytarabine and anthracycline induction and standard cytarabine consolidation chemotherapy, and continued as monotherapy following consolidation, was associated with a significant improvement in overall survival versus placebo (median 31.9 months versus 15.1 months, respectively; hazard ratio, 0.776; P = .0324).
For the post hoc analysis of the trial, the authors sought to evaluate if the effects were observed regardless of whether or not allo-HCT was received – which may not be recommended when patients go into remission after the first round of chemotherapy. The issue is important, as efficacy of other targeted therapy with the FLT3 inhibitors has been associated with allo-HCT treatment.
“Midostaurin, for example is mostly effective if [the drug] is followed by allo-HCT, and much less effective [no significant improvement] without allo-HCT,” Dr. Schlenk said.
The authors also sought to evaluate the relationship between minimal residual disease (MRD) prior to allo-HCT in FLT3-ITD and overall survival.
For the trial, 539 patients, with a median age of 56 were randomized to quizartinib (n = 268) or placebo (n = 271), and 147 patients (54.9%) in the quizartinib arm and 150 (55.4%) in the placebo arm achieved complete remission after induction. The rates of incomplete hematologic recovery (CRi) were 16.8% and 9.6%, respectively.
Of those achieving complete remission, 57.1% of patients on quizartinib and 48.7% of those receiving placebo underwent allo-HCT in the first complete remission. The median time to allo-HCT in the two groups was 3.5 months with quizartinib and 3.3 months for placebo.
Following the completion of allo-HCT, 61 patients (72.6%) receiving quizartinib and 36 (49.3%) receiving placebo started 3 years of continuation monotherapy.
In addition, 115 patients received allo-HCT outside of CR1, including 60 on quizartinib and 55 on placebo.
After adjustment for factors including region, age, and white blood count, patients treated with quizartinib treatment had a significantly higher overall survival (HR, 0.770; P = .0284), as did those receiving allo-HCT in CR1 (HR, 0.424; P < .0001).
Furthermore, patients receiving quizartinib had a longer overall survival regardless of whether they received allo-HCT in CR1 or not.
Of note, quizartinib-treated patients who were MRD positive prior to their allo-HCT transplant had a longer overall survival versus placebo (HR, 0.471); as did those who were MRD negative (HR, 0.717), to a lesser degree.
There were no new safety signals identified among patients undergoing allo-HCT.
Of note, cytomegalovirus infection was more common in the quizartinib group (11.8%) versus placebo (5.5%), while decreased appetite was less common with quizartinib (2.9%) versus placebo (12.1%).
Asked by an audience member about any risk of graft-versus-host disease (GVHD), Dr. Schlenk noted that “no difference between the quizartinib and placebo arms has been observed in GVHD acute and chronic.”
He added that patients “appear to benefit more from quizartinib if they have higher allelic frequency versus lower, overall,” and that younger patients, in general, showed greater benefit from quizartinib versus those over 60.
In general, “we see that for patients receiving allo-HCT transplantation, it’s beneficial to be randomized in the quizartinib arm [while] patients who did not undergo allo-HCT in first complete remission benefit equally when treated with quizartinib versus placebo,” he said in presenting the findings at the EHA meeting.
“And irrespective of pre–allo-HCT MRD status, longer survival was observed in those treated with quizartinib versus placebo, but most benefit was observed in those who were MRD positive.”
Quizartinib was approved in Japan this year in combination with chemotherapy for patients with newly diagnosed AML whose tumors harbor FLT3-ITD mutations.
The drug was granted a priority review by the U.S. Food and Drug Administration in October 2022. While the target action date was in April, a new decision date of July 21, 2023, is expected.
The study was sponsored by Daiichi Sankyo. Dr. Schlenk reported relationships with Daiichi Sankyo and other companies.
FROM THE EHA 2023 CONGRESS
Promising phase 3 results for Alzheimer’s drug donanemab
results of a phase 3 study showed.
“This trial demonstrates that an antiamyloid drug significantly slows the disease and provides meaningful benefit to patients, and we’re hoping that with approval, we will be able to make that drug available,” said Mark Mintun, MD, VP, pain and neurodegeneration research, Eli Lilly.
At a press briefing highlighting the new results, Maria Carrillo, PhD, chief science officer, Alzheimer’s Association, noted the “palpable excitement” surrounding this new study, which follows on the heels of other promising antiamyloid research. “This is the decade of Alzheimer’s disease, and it will get better from here,” she said.
The findings were presented at the Alzheimer’s Association International Conference and were published online in JAMA.
Primary, secondary endpoints met
The TRAILBLAZER-ALZ 2 study included 1,736 patients with mild cognitive impairment (MCI) or mild dementia for whom PET showed evidence of amyloid and tau pathology. The mean age of the participants was 73 years, and most of the participants were White.
Participants were randomly assigned to receive either placebo or donanemab, an investigational IgG1 monoclonal antibody directed against an insoluble, modified, N-terminal, truncated form of beta-amyloid. Donanemab was administered at a dose of 700 mg for the first three doses and 1,400 mg thereafter. The drug was administered intravenously every 4 weeks for up to 72 weeks.
Researchers stratified patients on the basis of the amount of tau, a biomarker for Alzheimer’s disease progression, into a low/medium tau group and a combined tau group (low/medium and high tau).
The primary endpoint was change from baseline to 76 weeks on the integrated Alzheimer’s Disease Rating Scale (iADRS), which measures cognition and activities of daily living.
In those with low/medium tau levels, the least squares mean (LSM) change in iADRS score was −6.02 (95% confidence interval, −7.01 to −5.03) in the donanemab group and −9.27 (95% CI, −10.23 to −8.31) in the placebo group (difference, 3.25; 95% CI, 1.88 – 4.62; P < .001), representing a 35.1% slowing of disease progression.
In the combined (tau) population, LSM change in iADRS was −10.19 (95% CI, −11.22 to −9.16) in the donanemab group and −13.11 (95% CI, −14.10 to −12.13) in the placebo group (difference, 2.92; 95% CI, 1.51 – 4.33; P < .001), representing a 22.3% slowing of disease progression.
The study also met all secondary endpoints regarding measurements of cognitive and functional decline, including the Clinical Dementia Rating–Sum of Boxes (CDR-SB), which showed 36% slowing of decline (P < .0001) over 18 months.
The authors noted that the changes on these scales were clinically meaningful (considered to be > 20% slowing of clinical progression) for both the low/medium tau and combined populations.
Greater benefit with lower tau
However, patients with low/medium tau generally demonstrated effect size estimates that were larger than those of the overall population, which suggests there’s greater benefit when amyloid-lowering therapies are initiated at an earlier disease stage, the investigators noted.
Additional support for clinical relevance was a 38.6% risk reduction of disease progression, as measured on the CDR–Global Score.
In addition, participants who received the active drug benefited in terms of activities of daily living, as demonstrated by 40% less decline (P < .0001) on the Alzheimer’s Disease Cooperative Study–Instrumental Activities of Daily Living Inventory.
Donanemab significantly reduced brain amyloid plaque: 80% (low/medium tau population) and 76% (combined population) of participants achieved amyloid clearance at 76 weeks. The intervention was also associated with a greater decrease in whole-brain volume.
The treatment effect continued to widen after patients were switched to placebo, as evidenced on PET scan at 6 or 12 months, said Dr. Mintun.
The effects of the drug were similar among men and women but were especially pronounced among younger participants, with a 48% slowing on iADRS and a 45% slowing on CDR-SB in those younger than 75 years.
Safety issues
However, the drug is not without some safety concerns. Amyloid-related imaging abnormalities (ARIAs) occurred in 36.8% of the treatment group versus 14.9% of the placebo group, and in 40.6% of patients who were homozygous for apo E4 and received the drug. Microhemorrhage occurred in 26.8% in the donanemab group versus 12.5% in the placebo group.
Most ARIA cases were mild to moderate and resolved or stabilized with appropriate management. However, three deaths were determined to be drug related among participants who developed serious ARIAs or brain bleeding and swelling.
An important study limitation was that it enrolled primarily White patients (91.5%), which may limit generalizability to other populations, and the age limit was 85 years, which some believe is an inadequate representation of older adults. In addition, the 18-month treatment window limits the long-term understanding of donanemab’s benefits and side effects.
Eli Lilly has filed a submission to the Food and Drug Administration. If approved, donanemab will be the third antiamyloid monoclonal antibody to receive this status, following aducanumab (Aduhelm) and lecanemab (Leqembi).
Strongest data yet
Commenting on the study findings, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said these new results are “very, very exciting” and represent “the strongest data to-date” for antiamyloid monoclonal antibodies in Alzheimer’s disease.
“A good percentage of individuals on the drug actually saw a complete clearance of amyloid, and some had to be taken off the drug, because if you’re on an antiamyloid drug and there’s no amyloid, what are you going for?”
He noted that the study had some unique aspects, including using tau-PET “to see whether or not the drug is more effective in subpopulations.”
Access to this and other antiamyloid therapies should be a priority, said Dr. Griffin. “We have to make sure people who have the potential to benefit from these treatments do.”
The Alzheimer’s Association is calling for Medicare beneficiaries who are living with the disease to receive the same coverage afforded to those with other diseases.
“The Centers for Medicare & Medicaid Services policy to block Medicare access to FDA-approved Alzheimer’s disease treatments is in stark contrast to scientific evidence, is unprecedented and must be reversed immediately,” Joanne Pike, DrPH, president and CEO of the Alzheimer’s Association, said in a press release.
Also important is tracking the longitudinal performance of these drugs outside of clinical trials, said Dr. Griffin. “Not everyone is going to be in that Goldilocks zone of being able to see a doctor whenever they want and have access to these PET and MRI tools and other things used in clinical trials.”
He noted that the Alzheimer’s Association is leading a network for diagnostics and therapeutics (ALZ-NET) that will track the performance of novel FDA-approved Alzheimer’s disease therapies “in the real world.”
While these are exciting findings for antiamyloid therapy, “we can’t take our foot off the gas, we need more therapies that target different aspects of the disease biology,” said Dr. Griffin.
A version of this article appeared on Medscape.com.
results of a phase 3 study showed.
“This trial demonstrates that an antiamyloid drug significantly slows the disease and provides meaningful benefit to patients, and we’re hoping that with approval, we will be able to make that drug available,” said Mark Mintun, MD, VP, pain and neurodegeneration research, Eli Lilly.
At a press briefing highlighting the new results, Maria Carrillo, PhD, chief science officer, Alzheimer’s Association, noted the “palpable excitement” surrounding this new study, which follows on the heels of other promising antiamyloid research. “This is the decade of Alzheimer’s disease, and it will get better from here,” she said.
The findings were presented at the Alzheimer’s Association International Conference and were published online in JAMA.
Primary, secondary endpoints met
The TRAILBLAZER-ALZ 2 study included 1,736 patients with mild cognitive impairment (MCI) or mild dementia for whom PET showed evidence of amyloid and tau pathology. The mean age of the participants was 73 years, and most of the participants were White.
Participants were randomly assigned to receive either placebo or donanemab, an investigational IgG1 monoclonal antibody directed against an insoluble, modified, N-terminal, truncated form of beta-amyloid. Donanemab was administered at a dose of 700 mg for the first three doses and 1,400 mg thereafter. The drug was administered intravenously every 4 weeks for up to 72 weeks.
Researchers stratified patients on the basis of the amount of tau, a biomarker for Alzheimer’s disease progression, into a low/medium tau group and a combined tau group (low/medium and high tau).
The primary endpoint was change from baseline to 76 weeks on the integrated Alzheimer’s Disease Rating Scale (iADRS), which measures cognition and activities of daily living.
In those with low/medium tau levels, the least squares mean (LSM) change in iADRS score was −6.02 (95% confidence interval, −7.01 to −5.03) in the donanemab group and −9.27 (95% CI, −10.23 to −8.31) in the placebo group (difference, 3.25; 95% CI, 1.88 – 4.62; P < .001), representing a 35.1% slowing of disease progression.
In the combined (tau) population, LSM change in iADRS was −10.19 (95% CI, −11.22 to −9.16) in the donanemab group and −13.11 (95% CI, −14.10 to −12.13) in the placebo group (difference, 2.92; 95% CI, 1.51 – 4.33; P < .001), representing a 22.3% slowing of disease progression.
The study also met all secondary endpoints regarding measurements of cognitive and functional decline, including the Clinical Dementia Rating–Sum of Boxes (CDR-SB), which showed 36% slowing of decline (P < .0001) over 18 months.
The authors noted that the changes on these scales were clinically meaningful (considered to be > 20% slowing of clinical progression) for both the low/medium tau and combined populations.
Greater benefit with lower tau
However, patients with low/medium tau generally demonstrated effect size estimates that were larger than those of the overall population, which suggests there’s greater benefit when amyloid-lowering therapies are initiated at an earlier disease stage, the investigators noted.
Additional support for clinical relevance was a 38.6% risk reduction of disease progression, as measured on the CDR–Global Score.
In addition, participants who received the active drug benefited in terms of activities of daily living, as demonstrated by 40% less decline (P < .0001) on the Alzheimer’s Disease Cooperative Study–Instrumental Activities of Daily Living Inventory.
Donanemab significantly reduced brain amyloid plaque: 80% (low/medium tau population) and 76% (combined population) of participants achieved amyloid clearance at 76 weeks. The intervention was also associated with a greater decrease in whole-brain volume.
The treatment effect continued to widen after patients were switched to placebo, as evidenced on PET scan at 6 or 12 months, said Dr. Mintun.
The effects of the drug were similar among men and women but were especially pronounced among younger participants, with a 48% slowing on iADRS and a 45% slowing on CDR-SB in those younger than 75 years.
Safety issues
However, the drug is not without some safety concerns. Amyloid-related imaging abnormalities (ARIAs) occurred in 36.8% of the treatment group versus 14.9% of the placebo group, and in 40.6% of patients who were homozygous for apo E4 and received the drug. Microhemorrhage occurred in 26.8% in the donanemab group versus 12.5% in the placebo group.
Most ARIA cases were mild to moderate and resolved or stabilized with appropriate management. However, three deaths were determined to be drug related among participants who developed serious ARIAs or brain bleeding and swelling.
An important study limitation was that it enrolled primarily White patients (91.5%), which may limit generalizability to other populations, and the age limit was 85 years, which some believe is an inadequate representation of older adults. In addition, the 18-month treatment window limits the long-term understanding of donanemab’s benefits and side effects.
Eli Lilly has filed a submission to the Food and Drug Administration. If approved, donanemab will be the third antiamyloid monoclonal antibody to receive this status, following aducanumab (Aduhelm) and lecanemab (Leqembi).
Strongest data yet
Commenting on the study findings, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said these new results are “very, very exciting” and represent “the strongest data to-date” for antiamyloid monoclonal antibodies in Alzheimer’s disease.
“A good percentage of individuals on the drug actually saw a complete clearance of amyloid, and some had to be taken off the drug, because if you’re on an antiamyloid drug and there’s no amyloid, what are you going for?”
He noted that the study had some unique aspects, including using tau-PET “to see whether or not the drug is more effective in subpopulations.”
Access to this and other antiamyloid therapies should be a priority, said Dr. Griffin. “We have to make sure people who have the potential to benefit from these treatments do.”
The Alzheimer’s Association is calling for Medicare beneficiaries who are living with the disease to receive the same coverage afforded to those with other diseases.
“The Centers for Medicare & Medicaid Services policy to block Medicare access to FDA-approved Alzheimer’s disease treatments is in stark contrast to scientific evidence, is unprecedented and must be reversed immediately,” Joanne Pike, DrPH, president and CEO of the Alzheimer’s Association, said in a press release.
Also important is tracking the longitudinal performance of these drugs outside of clinical trials, said Dr. Griffin. “Not everyone is going to be in that Goldilocks zone of being able to see a doctor whenever they want and have access to these PET and MRI tools and other things used in clinical trials.”
He noted that the Alzheimer’s Association is leading a network for diagnostics and therapeutics (ALZ-NET) that will track the performance of novel FDA-approved Alzheimer’s disease therapies “in the real world.”
While these are exciting findings for antiamyloid therapy, “we can’t take our foot off the gas, we need more therapies that target different aspects of the disease biology,” said Dr. Griffin.
A version of this article appeared on Medscape.com.
results of a phase 3 study showed.
“This trial demonstrates that an antiamyloid drug significantly slows the disease and provides meaningful benefit to patients, and we’re hoping that with approval, we will be able to make that drug available,” said Mark Mintun, MD, VP, pain and neurodegeneration research, Eli Lilly.
At a press briefing highlighting the new results, Maria Carrillo, PhD, chief science officer, Alzheimer’s Association, noted the “palpable excitement” surrounding this new study, which follows on the heels of other promising antiamyloid research. “This is the decade of Alzheimer’s disease, and it will get better from here,” she said.
The findings were presented at the Alzheimer’s Association International Conference and were published online in JAMA.
Primary, secondary endpoints met
The TRAILBLAZER-ALZ 2 study included 1,736 patients with mild cognitive impairment (MCI) or mild dementia for whom PET showed evidence of amyloid and tau pathology. The mean age of the participants was 73 years, and most of the participants were White.
Participants were randomly assigned to receive either placebo or donanemab, an investigational IgG1 monoclonal antibody directed against an insoluble, modified, N-terminal, truncated form of beta-amyloid. Donanemab was administered at a dose of 700 mg for the first three doses and 1,400 mg thereafter. The drug was administered intravenously every 4 weeks for up to 72 weeks.
Researchers stratified patients on the basis of the amount of tau, a biomarker for Alzheimer’s disease progression, into a low/medium tau group and a combined tau group (low/medium and high tau).
The primary endpoint was change from baseline to 76 weeks on the integrated Alzheimer’s Disease Rating Scale (iADRS), which measures cognition and activities of daily living.
In those with low/medium tau levels, the least squares mean (LSM) change in iADRS score was −6.02 (95% confidence interval, −7.01 to −5.03) in the donanemab group and −9.27 (95% CI, −10.23 to −8.31) in the placebo group (difference, 3.25; 95% CI, 1.88 – 4.62; P < .001), representing a 35.1% slowing of disease progression.
In the combined (tau) population, LSM change in iADRS was −10.19 (95% CI, −11.22 to −9.16) in the donanemab group and −13.11 (95% CI, −14.10 to −12.13) in the placebo group (difference, 2.92; 95% CI, 1.51 – 4.33; P < .001), representing a 22.3% slowing of disease progression.
The study also met all secondary endpoints regarding measurements of cognitive and functional decline, including the Clinical Dementia Rating–Sum of Boxes (CDR-SB), which showed 36% slowing of decline (P < .0001) over 18 months.
The authors noted that the changes on these scales were clinically meaningful (considered to be > 20% slowing of clinical progression) for both the low/medium tau and combined populations.
Greater benefit with lower tau
However, patients with low/medium tau generally demonstrated effect size estimates that were larger than those of the overall population, which suggests there’s greater benefit when amyloid-lowering therapies are initiated at an earlier disease stage, the investigators noted.
Additional support for clinical relevance was a 38.6% risk reduction of disease progression, as measured on the CDR–Global Score.
In addition, participants who received the active drug benefited in terms of activities of daily living, as demonstrated by 40% less decline (P < .0001) on the Alzheimer’s Disease Cooperative Study–Instrumental Activities of Daily Living Inventory.
Donanemab significantly reduced brain amyloid plaque: 80% (low/medium tau population) and 76% (combined population) of participants achieved amyloid clearance at 76 weeks. The intervention was also associated with a greater decrease in whole-brain volume.
The treatment effect continued to widen after patients were switched to placebo, as evidenced on PET scan at 6 or 12 months, said Dr. Mintun.
The effects of the drug were similar among men and women but were especially pronounced among younger participants, with a 48% slowing on iADRS and a 45% slowing on CDR-SB in those younger than 75 years.
Safety issues
However, the drug is not without some safety concerns. Amyloid-related imaging abnormalities (ARIAs) occurred in 36.8% of the treatment group versus 14.9% of the placebo group, and in 40.6% of patients who were homozygous for apo E4 and received the drug. Microhemorrhage occurred in 26.8% in the donanemab group versus 12.5% in the placebo group.
Most ARIA cases were mild to moderate and resolved or stabilized with appropriate management. However, three deaths were determined to be drug related among participants who developed serious ARIAs or brain bleeding and swelling.
An important study limitation was that it enrolled primarily White patients (91.5%), which may limit generalizability to other populations, and the age limit was 85 years, which some believe is an inadequate representation of older adults. In addition, the 18-month treatment window limits the long-term understanding of donanemab’s benefits and side effects.
Eli Lilly has filed a submission to the Food and Drug Administration. If approved, donanemab will be the third antiamyloid monoclonal antibody to receive this status, following aducanumab (Aduhelm) and lecanemab (Leqembi).
Strongest data yet
Commenting on the study findings, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said these new results are “very, very exciting” and represent “the strongest data to-date” for antiamyloid monoclonal antibodies in Alzheimer’s disease.
“A good percentage of individuals on the drug actually saw a complete clearance of amyloid, and some had to be taken off the drug, because if you’re on an antiamyloid drug and there’s no amyloid, what are you going for?”
He noted that the study had some unique aspects, including using tau-PET “to see whether or not the drug is more effective in subpopulations.”
Access to this and other antiamyloid therapies should be a priority, said Dr. Griffin. “We have to make sure people who have the potential to benefit from these treatments do.”
The Alzheimer’s Association is calling for Medicare beneficiaries who are living with the disease to receive the same coverage afforded to those with other diseases.
“The Centers for Medicare & Medicaid Services policy to block Medicare access to FDA-approved Alzheimer’s disease treatments is in stark contrast to scientific evidence, is unprecedented and must be reversed immediately,” Joanne Pike, DrPH, president and CEO of the Alzheimer’s Association, said in a press release.
Also important is tracking the longitudinal performance of these drugs outside of clinical trials, said Dr. Griffin. “Not everyone is going to be in that Goldilocks zone of being able to see a doctor whenever they want and have access to these PET and MRI tools and other things used in clinical trials.”
He noted that the Alzheimer’s Association is leading a network for diagnostics and therapeutics (ALZ-NET) that will track the performance of novel FDA-approved Alzheimer’s disease therapies “in the real world.”
While these are exciting findings for antiamyloid therapy, “we can’t take our foot off the gas, we need more therapies that target different aspects of the disease biology,” said Dr. Griffin.
A version of this article appeared on Medscape.com.
FROM AAIC 2023
Remote teams offer chance to improve difficult-to-treat PsA
DUBLIN – according to presenters at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
In the same session at the meeting, GRAPPA also announced a new initiative to define difficult-to-treat PsA.
Deepak Jadon, MBBCh, PhD, a rheumatologist with Cambridge (England) University Hospitals NHS Foundation Trust, described his experience of running a clinic for patients with difficult-to-treat PsA in eastern England, covering a catchment area of approximately 6 million people between six and seven hospitals. He discussed how the MDT in his region operates to discuss the management of such patients, whose treatment options may also have indications for comorbidities such as inflammatory bowel disease or uveitis, or have complicating factors such as metabolic syndrome.
“You have to have an interested and engaged colleague to form that collaboration,” Dr. Jadon said. “If you are working in isolation, without your colleagues in the same building, that becomes harder. We have been running remote multispecialty meetings without the patient being present, and I have had the good fortune of having medical students brought into our practice. We discussed approximately 220 patients, initially in our psoriasis-spondyloarthritis MDT and subsequently in our inflammatory bowel disease–spondyloarthritis MDT.”
There are also MDTs with hepatologist colleagues carried out on an ad hoc basis to discuss patients with nonalcoholic fatty liver disease, as well as patients with hepatitis or a transplanted liver, who have psoriatic disease.
This difficult-to-treat cohort is discussed in MDT meetings conducted on Zoom. At MDT meetings, carried out with frequencies ranging from monthly to bimonthly, Dr. Jadon said there would be two dermatologists, two rheumatologists, one to four dermatology and rheumatology trainees and fellows, one to four specialist nurses, one to three research nurses, and one biologics pharmacist. They record the meetings and discuss anywhere from 4 to 18 patients, reviewing items in their electronic medical record, calling or writing patients and/or their primary care clinician as needed. They take about an hour to meet, with a half hour of prep time and another 1.5 hours to undertake necessary actions.
“Generally, the question is, how can we change treatment to best cover the domains of disease?” Dr. Jadon said. “Progressively, more patients are being put onto biologics as a result of these conversations, and I do feel that it has helped our patients and us to consolidate their management plan. Naturally, as all clinicians do, we doubt ourselves and wonder if we are missing something. Is there an aspect of the disease [being missed]? Is there a treatment that I haven’t been using? [The meetings have] been reassuring in that regard. I also learn from my colleagues who have earlier access to treatments, especially in dermatology.”
In a small number of patients, some combinations of advanced therapies, such as combining a Janus kinase inhibitor with a biologic, have been used as a result of these collaborations, “and to discuss this in an MDT has been reassuring, including from a medico-legal perspective,” Dr. Jadon said. “One of the main things we found to be useful is having a brief referral pro forma. Usually, by the time patients reach this forum, they have used a lot of treatments, and it can be difficult to remember that on the spot. It is also important to focus on what the actual question is. Naturally, in these discussions, where you talk about the complexities and various facets of disease, you can get a bit lost and sometimes you actually don’t address the original question.”
He also said it has been very beneficial to use screen sharing in the remote MDTs so that different disciplines can review images together, such as with radiology colleagues. “There are varying skill sets among our colleagues, especially in radiology, and it has been quite nice to review their peripheral imaging, their axial imaging, laboratory markers, and skin lesions together.”
New GRAPPA project to provide clarity
A new GRAPPA project has been devised to help physicians identify and define difficult-to-treat and difficult-to-manage PsA in order to help physicians to categorize and treat these patients.
“We have a growing treatment armamentarium ... but we still do not reach all the patients that we would like to,” said Fabian Proft, MD, of Charité University Medicine, Berlin. “We set our targets, but we see in the real world that we are only reaching them in 40% or 50% of our patients. So, we need to do better, and in order to do better, we need to understand better.”
“We should not only make a definition of difficult-to-treat PsA, which is nonresponse to treatment with objective signs of inflammation, but also we need to address and acknowledge difficult-to-manage [patients],” Dr. Proft said. “We should not stop as soon as we come up with a definition. This will be a working definition and will need to be validated.”
The speakers reported no relevant financial relationships.
A version of this article appeared on Medscape.com.
DUBLIN – according to presenters at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
In the same session at the meeting, GRAPPA also announced a new initiative to define difficult-to-treat PsA.
Deepak Jadon, MBBCh, PhD, a rheumatologist with Cambridge (England) University Hospitals NHS Foundation Trust, described his experience of running a clinic for patients with difficult-to-treat PsA in eastern England, covering a catchment area of approximately 6 million people between six and seven hospitals. He discussed how the MDT in his region operates to discuss the management of such patients, whose treatment options may also have indications for comorbidities such as inflammatory bowel disease or uveitis, or have complicating factors such as metabolic syndrome.
“You have to have an interested and engaged colleague to form that collaboration,” Dr. Jadon said. “If you are working in isolation, without your colleagues in the same building, that becomes harder. We have been running remote multispecialty meetings without the patient being present, and I have had the good fortune of having medical students brought into our practice. We discussed approximately 220 patients, initially in our psoriasis-spondyloarthritis MDT and subsequently in our inflammatory bowel disease–spondyloarthritis MDT.”
There are also MDTs with hepatologist colleagues carried out on an ad hoc basis to discuss patients with nonalcoholic fatty liver disease, as well as patients with hepatitis or a transplanted liver, who have psoriatic disease.
This difficult-to-treat cohort is discussed in MDT meetings conducted on Zoom. At MDT meetings, carried out with frequencies ranging from monthly to bimonthly, Dr. Jadon said there would be two dermatologists, two rheumatologists, one to four dermatology and rheumatology trainees and fellows, one to four specialist nurses, one to three research nurses, and one biologics pharmacist. They record the meetings and discuss anywhere from 4 to 18 patients, reviewing items in their electronic medical record, calling or writing patients and/or their primary care clinician as needed. They take about an hour to meet, with a half hour of prep time and another 1.5 hours to undertake necessary actions.
“Generally, the question is, how can we change treatment to best cover the domains of disease?” Dr. Jadon said. “Progressively, more patients are being put onto biologics as a result of these conversations, and I do feel that it has helped our patients and us to consolidate their management plan. Naturally, as all clinicians do, we doubt ourselves and wonder if we are missing something. Is there an aspect of the disease [being missed]? Is there a treatment that I haven’t been using? [The meetings have] been reassuring in that regard. I also learn from my colleagues who have earlier access to treatments, especially in dermatology.”
In a small number of patients, some combinations of advanced therapies, such as combining a Janus kinase inhibitor with a biologic, have been used as a result of these collaborations, “and to discuss this in an MDT has been reassuring, including from a medico-legal perspective,” Dr. Jadon said. “One of the main things we found to be useful is having a brief referral pro forma. Usually, by the time patients reach this forum, they have used a lot of treatments, and it can be difficult to remember that on the spot. It is also important to focus on what the actual question is. Naturally, in these discussions, where you talk about the complexities and various facets of disease, you can get a bit lost and sometimes you actually don’t address the original question.”
He also said it has been very beneficial to use screen sharing in the remote MDTs so that different disciplines can review images together, such as with radiology colleagues. “There are varying skill sets among our colleagues, especially in radiology, and it has been quite nice to review their peripheral imaging, their axial imaging, laboratory markers, and skin lesions together.”
New GRAPPA project to provide clarity
A new GRAPPA project has been devised to help physicians identify and define difficult-to-treat and difficult-to-manage PsA in order to help physicians to categorize and treat these patients.
“We have a growing treatment armamentarium ... but we still do not reach all the patients that we would like to,” said Fabian Proft, MD, of Charité University Medicine, Berlin. “We set our targets, but we see in the real world that we are only reaching them in 40% or 50% of our patients. So, we need to do better, and in order to do better, we need to understand better.”
“We should not only make a definition of difficult-to-treat PsA, which is nonresponse to treatment with objective signs of inflammation, but also we need to address and acknowledge difficult-to-manage [patients],” Dr. Proft said. “We should not stop as soon as we come up with a definition. This will be a working definition and will need to be validated.”
The speakers reported no relevant financial relationships.
A version of this article appeared on Medscape.com.
DUBLIN – according to presenters at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
In the same session at the meeting, GRAPPA also announced a new initiative to define difficult-to-treat PsA.
Deepak Jadon, MBBCh, PhD, a rheumatologist with Cambridge (England) University Hospitals NHS Foundation Trust, described his experience of running a clinic for patients with difficult-to-treat PsA in eastern England, covering a catchment area of approximately 6 million people between six and seven hospitals. He discussed how the MDT in his region operates to discuss the management of such patients, whose treatment options may also have indications for comorbidities such as inflammatory bowel disease or uveitis, or have complicating factors such as metabolic syndrome.
“You have to have an interested and engaged colleague to form that collaboration,” Dr. Jadon said. “If you are working in isolation, without your colleagues in the same building, that becomes harder. We have been running remote multispecialty meetings without the patient being present, and I have had the good fortune of having medical students brought into our practice. We discussed approximately 220 patients, initially in our psoriasis-spondyloarthritis MDT and subsequently in our inflammatory bowel disease–spondyloarthritis MDT.”
There are also MDTs with hepatologist colleagues carried out on an ad hoc basis to discuss patients with nonalcoholic fatty liver disease, as well as patients with hepatitis or a transplanted liver, who have psoriatic disease.
This difficult-to-treat cohort is discussed in MDT meetings conducted on Zoom. At MDT meetings, carried out with frequencies ranging from monthly to bimonthly, Dr. Jadon said there would be two dermatologists, two rheumatologists, one to four dermatology and rheumatology trainees and fellows, one to four specialist nurses, one to three research nurses, and one biologics pharmacist. They record the meetings and discuss anywhere from 4 to 18 patients, reviewing items in their electronic medical record, calling or writing patients and/or their primary care clinician as needed. They take about an hour to meet, with a half hour of prep time and another 1.5 hours to undertake necessary actions.
“Generally, the question is, how can we change treatment to best cover the domains of disease?” Dr. Jadon said. “Progressively, more patients are being put onto biologics as a result of these conversations, and I do feel that it has helped our patients and us to consolidate their management plan. Naturally, as all clinicians do, we doubt ourselves and wonder if we are missing something. Is there an aspect of the disease [being missed]? Is there a treatment that I haven’t been using? [The meetings have] been reassuring in that regard. I also learn from my colleagues who have earlier access to treatments, especially in dermatology.”
In a small number of patients, some combinations of advanced therapies, such as combining a Janus kinase inhibitor with a biologic, have been used as a result of these collaborations, “and to discuss this in an MDT has been reassuring, including from a medico-legal perspective,” Dr. Jadon said. “One of the main things we found to be useful is having a brief referral pro forma. Usually, by the time patients reach this forum, they have used a lot of treatments, and it can be difficult to remember that on the spot. It is also important to focus on what the actual question is. Naturally, in these discussions, where you talk about the complexities and various facets of disease, you can get a bit lost and sometimes you actually don’t address the original question.”
He also said it has been very beneficial to use screen sharing in the remote MDTs so that different disciplines can review images together, such as with radiology colleagues. “There are varying skill sets among our colleagues, especially in radiology, and it has been quite nice to review their peripheral imaging, their axial imaging, laboratory markers, and skin lesions together.”
New GRAPPA project to provide clarity
A new GRAPPA project has been devised to help physicians identify and define difficult-to-treat and difficult-to-manage PsA in order to help physicians to categorize and treat these patients.
“We have a growing treatment armamentarium ... but we still do not reach all the patients that we would like to,” said Fabian Proft, MD, of Charité University Medicine, Berlin. “We set our targets, but we see in the real world that we are only reaching them in 40% or 50% of our patients. So, we need to do better, and in order to do better, we need to understand better.”
“We should not only make a definition of difficult-to-treat PsA, which is nonresponse to treatment with objective signs of inflammation, but also we need to address and acknowledge difficult-to-manage [patients],” Dr. Proft said. “We should not stop as soon as we come up with a definition. This will be a working definition and will need to be validated.”
The speakers reported no relevant financial relationships.
A version of this article appeared on Medscape.com.
AT GRAPPA 2023
Keep depression, anxiety screening top of mind in patients with psoriatic disease
DUBLIN – , warranting routine screening and having community contacts for mental health professional referrals, Elizabeth Wallace, MD, said at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
Dr. Wallace, of Cherry Hills Dermatology, Englewood, Colo., discussed the complex interactions between mental illness and psoriatic disease and the potential pitfalls of this comorbidity for these patients.
The topic of mental health is “consistently at the top of our patients’ minds, and certainly our minds too,” said session comoderator and GRAPPA president-elect Joseph F. Merola, MD, MMSc.
“In the U.S., around 17% of people with psoriasis have depression vs. 9% in those without psoriasis,” Dr. Wallace explained. “Psoriasis patients are twice as likely to have depression, compared to those without psoriasis, and psoriasis patients are 33% more likely to attempt suicide and 20% more likely to complete suicide, compared to those without psoriasis.” More severe psoriasis and younger age of onset are also associated with a greater likelihood of suicidality, she added.
Mediators of depression
“The inflammatory mechanisms driving PsD can drive depression and anxiety, and vice-versa,” she said. “There are often also genetic links, for example genetic variations in serotonin receptors, and psychological issues in psoriatic disease are predictably worsened by feelings of stigmatization, embarrassment, and social isolation.”
There are also efforts underway in clinics to “normalize” screening for anxiety and depression among this patient cohort, Dr. Wallace said. “We know that our psoriasis patients face social stigma from the visibility of their disease, and that stress can lead to flares of their condition,” she told the attendees. “We also know that patients who experience stigma also have an increased risk of depressive symptoms. We all know now that psoriasis has well-established pathways with upregulated proinflammatory cytokines.
“Increased cytokines stimulate indoleamine 2,3-dioxygenase, which converts tryptophan to kynurenine. Kynurenine is metabolized to quinolinic acid, which is neurotoxic.” She explained that because serotonin derives from tryptophan, decreases in tryptophan lead to reduced serotonin, and therefore increased risk of depression.
Interleukin-6 is known to be upregulated in depression and downregulated with the use of antidepressant medications, Dr. Wallace said. Mouse models in research have shown that deletion of the IL-6 gene produces antidepressant effects, and studies in humans have shown that IL-6, more than any other serum cytokine, is found at higher levels in humans with depression and psoriatic disease.
IL-17 is also implicated in psoriatic disease and mental health problems, Dr. Wallace said. “With stress, you get upregulation of the Tc17 cells, which produce IL-17,” she explained. “IL-17, along with other inflammatory markers, can actually make the blood-brain barrier more permeable, and when you get more permeability to the blood-brain barrier, you get these cytokines that can cross from the periphery and into the brain.
“With this crossing into the brain, you get further activation of more Th17 [cells] and that, on neurons, leads to increased potassium production, which is directly neurotoxic, so you get neuron destruction.”
Talking about depression
“So, what can we share with our patients?” Dr. Wallace asked. “We can discuss with them that psoriatic patients in general are more likely to be depressed or to have higher rates of suicide. The literature consistently shows that patients whose psoriasis is successfully treated experience reduced depression, and we can provide an understandable review of systemic medications, with warnings on depression and/or suicidality.”
Dr. Wallace advised to screen for depression with the Patient Health Questionnaire-2 (PHQ-2), a validated, two-item tool that asks, “Over the past 2 weeks, how often have you been bothered by having little interest or pleasure in doing things?” and “Over the past 2 weeks, how often have you been bothered by feeling down, depressed, or hopeless?”
She presented a case study illustrative of the type of presentation she sees in her clinic. It involved a 32-year-old man with plaque psoriasis and a high degree of body surface affected. “It’s now July in Colorado, it’s getting warm, people want to wear their shorts and T-shirts, but he said he could no longer hide his psoriasis,” said Dr. Wallace. “Further, it’s in areas that he cannot hide, such as his scalp, his beard, and he also has nail disease. Often, these patients don’t want to shake hands with their bosses or their colleagues and that’s very embarrassing for them.”
Dr. Wallace explained that this patient had seen advertisements for biologic drugs and requested to commence a treatment course. “During the exam, and now that you are developing some rapport with him, you discover that he is feeling down, is embarrassed at work, and has started to avoid social situations.” This is illustrative of a patient who should be screened for mental health conditions, specifically using PHQ-2, she said.
“You can be the person at the front line to screen these patients for mental health conditions, and, specifically for depression, with PHQ-2,” she said. PHQ-2 scores range from 0 to 6, and a score of 3 or higher is considered a positive screen.
“This is where your relationship with another health provider who is most qualified to care for these patients and validate them for their mental health condition can be absolutely critical,” Dr. Wallace said.
Successful PsD treatment lessens the risk for mental health comorbidities, and this is also seen in psoriatic arthritis, Dr. Wallace pointed out. Patient education is critical regarding their increased risk for depression and potential suicidal ideation, she added.
“It’s our job as clinicians to provide patients with an understandable, easy-to-digest review of systemic medications and warnings on depression and suicidality so that they can be aware of these factors.”
Perspective from Dr. Merola
In an interview, Dr. Merola, a double board-certified dermatologist and rheumatologist at Brigham and Women’s Hospital, Boston, discussed the interactions between mental and physical illness.
“One of the things we are learning is that it’s very much a multifactorial issue, in that skin and joints contribute, in some obvious ways, to anxiety and depression, like the fact that somebody doesn’t feel good about their appearance, or they can’t complete daily activities,” he said. “Those are the more obvious ones. But there is data and evidence that there is a biology behind that as well – inflammatory cytokines that drive skin disease probably also have a direct impact on the CNS and probably also drive anxiety and depression.
“We know that disordered sleep contributes to anxiety – think about how we feel if we get a horrible night’s sleep ... it’s hard to pick apart: ‘Am I depressed, am I anxious because I am having too much coffee? Because I am fatigued?’ So, we get into these circles, but the point is, we have to break these cycles, and we have to do it in multiple places. Yes, we have to fix the skin and the joints, but we also have to have interventions and think about how to screen for anxiety and depression. We also have to think about identifying disordered sleep, and how we intervene there as well.”
These challenges require a collaborative approach among physicians. “We can help patients to build their team that gets them help for their skin, for their joints, for their anxiety or depression, their disordered sleep, for their nutritional disorders, their obesity, and so on. So, we are trying to pick apart and unpack those complexities,” he said.
In regard to the potential impacts of this holistic strategy on physician workloads, Dr. Merola acknowledged it is important to consider physician wellness. “There’s no question that we want to be doing the best we can for our colleagues, but we don’t want to overload our colleagues by saying, ‘By the way, not only should we be treating their skin and joints,’ which of course we should be doing, but ‘could you also manage their diabetes, their obesity, their disordered sleep, their anxiety, their depression, difficulties with insurance, getting access to treatments, etc.’
“This is where effective collaboration between physicians becomes important,” he stressed. “We can’t manage every single piece, but we can make sure our patients are informed, are aware, and assist them to get the help that they need.”
In the United States, there “is a real issue” with access to mental health care and greater awareness needs to be created around this issue, he added.
Dr. Wallace and Dr. Merola report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
DUBLIN – , warranting routine screening and having community contacts for mental health professional referrals, Elizabeth Wallace, MD, said at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
Dr. Wallace, of Cherry Hills Dermatology, Englewood, Colo., discussed the complex interactions between mental illness and psoriatic disease and the potential pitfalls of this comorbidity for these patients.
The topic of mental health is “consistently at the top of our patients’ minds, and certainly our minds too,” said session comoderator and GRAPPA president-elect Joseph F. Merola, MD, MMSc.
“In the U.S., around 17% of people with psoriasis have depression vs. 9% in those without psoriasis,” Dr. Wallace explained. “Psoriasis patients are twice as likely to have depression, compared to those without psoriasis, and psoriasis patients are 33% more likely to attempt suicide and 20% more likely to complete suicide, compared to those without psoriasis.” More severe psoriasis and younger age of onset are also associated with a greater likelihood of suicidality, she added.
Mediators of depression
“The inflammatory mechanisms driving PsD can drive depression and anxiety, and vice-versa,” she said. “There are often also genetic links, for example genetic variations in serotonin receptors, and psychological issues in psoriatic disease are predictably worsened by feelings of stigmatization, embarrassment, and social isolation.”
There are also efforts underway in clinics to “normalize” screening for anxiety and depression among this patient cohort, Dr. Wallace said. “We know that our psoriasis patients face social stigma from the visibility of their disease, and that stress can lead to flares of their condition,” she told the attendees. “We also know that patients who experience stigma also have an increased risk of depressive symptoms. We all know now that psoriasis has well-established pathways with upregulated proinflammatory cytokines.
“Increased cytokines stimulate indoleamine 2,3-dioxygenase, which converts tryptophan to kynurenine. Kynurenine is metabolized to quinolinic acid, which is neurotoxic.” She explained that because serotonin derives from tryptophan, decreases in tryptophan lead to reduced serotonin, and therefore increased risk of depression.
Interleukin-6 is known to be upregulated in depression and downregulated with the use of antidepressant medications, Dr. Wallace said. Mouse models in research have shown that deletion of the IL-6 gene produces antidepressant effects, and studies in humans have shown that IL-6, more than any other serum cytokine, is found at higher levels in humans with depression and psoriatic disease.
IL-17 is also implicated in psoriatic disease and mental health problems, Dr. Wallace said. “With stress, you get upregulation of the Tc17 cells, which produce IL-17,” she explained. “IL-17, along with other inflammatory markers, can actually make the blood-brain barrier more permeable, and when you get more permeability to the blood-brain barrier, you get these cytokines that can cross from the periphery and into the brain.
“With this crossing into the brain, you get further activation of more Th17 [cells] and that, on neurons, leads to increased potassium production, which is directly neurotoxic, so you get neuron destruction.”
Talking about depression
“So, what can we share with our patients?” Dr. Wallace asked. “We can discuss with them that psoriatic patients in general are more likely to be depressed or to have higher rates of suicide. The literature consistently shows that patients whose psoriasis is successfully treated experience reduced depression, and we can provide an understandable review of systemic medications, with warnings on depression and/or suicidality.”
Dr. Wallace advised to screen for depression with the Patient Health Questionnaire-2 (PHQ-2), a validated, two-item tool that asks, “Over the past 2 weeks, how often have you been bothered by having little interest or pleasure in doing things?” and “Over the past 2 weeks, how often have you been bothered by feeling down, depressed, or hopeless?”
She presented a case study illustrative of the type of presentation she sees in her clinic. It involved a 32-year-old man with plaque psoriasis and a high degree of body surface affected. “It’s now July in Colorado, it’s getting warm, people want to wear their shorts and T-shirts, but he said he could no longer hide his psoriasis,” said Dr. Wallace. “Further, it’s in areas that he cannot hide, such as his scalp, his beard, and he also has nail disease. Often, these patients don’t want to shake hands with their bosses or their colleagues and that’s very embarrassing for them.”
Dr. Wallace explained that this patient had seen advertisements for biologic drugs and requested to commence a treatment course. “During the exam, and now that you are developing some rapport with him, you discover that he is feeling down, is embarrassed at work, and has started to avoid social situations.” This is illustrative of a patient who should be screened for mental health conditions, specifically using PHQ-2, she said.
“You can be the person at the front line to screen these patients for mental health conditions, and, specifically for depression, with PHQ-2,” she said. PHQ-2 scores range from 0 to 6, and a score of 3 or higher is considered a positive screen.
“This is where your relationship with another health provider who is most qualified to care for these patients and validate them for their mental health condition can be absolutely critical,” Dr. Wallace said.
Successful PsD treatment lessens the risk for mental health comorbidities, and this is also seen in psoriatic arthritis, Dr. Wallace pointed out. Patient education is critical regarding their increased risk for depression and potential suicidal ideation, she added.
“It’s our job as clinicians to provide patients with an understandable, easy-to-digest review of systemic medications and warnings on depression and suicidality so that they can be aware of these factors.”
Perspective from Dr. Merola
In an interview, Dr. Merola, a double board-certified dermatologist and rheumatologist at Brigham and Women’s Hospital, Boston, discussed the interactions between mental and physical illness.
“One of the things we are learning is that it’s very much a multifactorial issue, in that skin and joints contribute, in some obvious ways, to anxiety and depression, like the fact that somebody doesn’t feel good about their appearance, or they can’t complete daily activities,” he said. “Those are the more obvious ones. But there is data and evidence that there is a biology behind that as well – inflammatory cytokines that drive skin disease probably also have a direct impact on the CNS and probably also drive anxiety and depression.
“We know that disordered sleep contributes to anxiety – think about how we feel if we get a horrible night’s sleep ... it’s hard to pick apart: ‘Am I depressed, am I anxious because I am having too much coffee? Because I am fatigued?’ So, we get into these circles, but the point is, we have to break these cycles, and we have to do it in multiple places. Yes, we have to fix the skin and the joints, but we also have to have interventions and think about how to screen for anxiety and depression. We also have to think about identifying disordered sleep, and how we intervene there as well.”
These challenges require a collaborative approach among physicians. “We can help patients to build their team that gets them help for their skin, for their joints, for their anxiety or depression, their disordered sleep, for their nutritional disorders, their obesity, and so on. So, we are trying to pick apart and unpack those complexities,” he said.
In regard to the potential impacts of this holistic strategy on physician workloads, Dr. Merola acknowledged it is important to consider physician wellness. “There’s no question that we want to be doing the best we can for our colleagues, but we don’t want to overload our colleagues by saying, ‘By the way, not only should we be treating their skin and joints,’ which of course we should be doing, but ‘could you also manage their diabetes, their obesity, their disordered sleep, their anxiety, their depression, difficulties with insurance, getting access to treatments, etc.’
“This is where effective collaboration between physicians becomes important,” he stressed. “We can’t manage every single piece, but we can make sure our patients are informed, are aware, and assist them to get the help that they need.”
In the United States, there “is a real issue” with access to mental health care and greater awareness needs to be created around this issue, he added.
Dr. Wallace and Dr. Merola report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
DUBLIN – , warranting routine screening and having community contacts for mental health professional referrals, Elizabeth Wallace, MD, said at the annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
Dr. Wallace, of Cherry Hills Dermatology, Englewood, Colo., discussed the complex interactions between mental illness and psoriatic disease and the potential pitfalls of this comorbidity for these patients.
The topic of mental health is “consistently at the top of our patients’ minds, and certainly our minds too,” said session comoderator and GRAPPA president-elect Joseph F. Merola, MD, MMSc.
“In the U.S., around 17% of people with psoriasis have depression vs. 9% in those without psoriasis,” Dr. Wallace explained. “Psoriasis patients are twice as likely to have depression, compared to those without psoriasis, and psoriasis patients are 33% more likely to attempt suicide and 20% more likely to complete suicide, compared to those without psoriasis.” More severe psoriasis and younger age of onset are also associated with a greater likelihood of suicidality, she added.
Mediators of depression
“The inflammatory mechanisms driving PsD can drive depression and anxiety, and vice-versa,” she said. “There are often also genetic links, for example genetic variations in serotonin receptors, and psychological issues in psoriatic disease are predictably worsened by feelings of stigmatization, embarrassment, and social isolation.”
There are also efforts underway in clinics to “normalize” screening for anxiety and depression among this patient cohort, Dr. Wallace said. “We know that our psoriasis patients face social stigma from the visibility of their disease, and that stress can lead to flares of their condition,” she told the attendees. “We also know that patients who experience stigma also have an increased risk of depressive symptoms. We all know now that psoriasis has well-established pathways with upregulated proinflammatory cytokines.
“Increased cytokines stimulate indoleamine 2,3-dioxygenase, which converts tryptophan to kynurenine. Kynurenine is metabolized to quinolinic acid, which is neurotoxic.” She explained that because serotonin derives from tryptophan, decreases in tryptophan lead to reduced serotonin, and therefore increased risk of depression.
Interleukin-6 is known to be upregulated in depression and downregulated with the use of antidepressant medications, Dr. Wallace said. Mouse models in research have shown that deletion of the IL-6 gene produces antidepressant effects, and studies in humans have shown that IL-6, more than any other serum cytokine, is found at higher levels in humans with depression and psoriatic disease.
IL-17 is also implicated in psoriatic disease and mental health problems, Dr. Wallace said. “With stress, you get upregulation of the Tc17 cells, which produce IL-17,” she explained. “IL-17, along with other inflammatory markers, can actually make the blood-brain barrier more permeable, and when you get more permeability to the blood-brain barrier, you get these cytokines that can cross from the periphery and into the brain.
“With this crossing into the brain, you get further activation of more Th17 [cells] and that, on neurons, leads to increased potassium production, which is directly neurotoxic, so you get neuron destruction.”
Talking about depression
“So, what can we share with our patients?” Dr. Wallace asked. “We can discuss with them that psoriatic patients in general are more likely to be depressed or to have higher rates of suicide. The literature consistently shows that patients whose psoriasis is successfully treated experience reduced depression, and we can provide an understandable review of systemic medications, with warnings on depression and/or suicidality.”
Dr. Wallace advised to screen for depression with the Patient Health Questionnaire-2 (PHQ-2), a validated, two-item tool that asks, “Over the past 2 weeks, how often have you been bothered by having little interest or pleasure in doing things?” and “Over the past 2 weeks, how often have you been bothered by feeling down, depressed, or hopeless?”
She presented a case study illustrative of the type of presentation she sees in her clinic. It involved a 32-year-old man with plaque psoriasis and a high degree of body surface affected. “It’s now July in Colorado, it’s getting warm, people want to wear their shorts and T-shirts, but he said he could no longer hide his psoriasis,” said Dr. Wallace. “Further, it’s in areas that he cannot hide, such as his scalp, his beard, and he also has nail disease. Often, these patients don’t want to shake hands with their bosses or their colleagues and that’s very embarrassing for them.”
Dr. Wallace explained that this patient had seen advertisements for biologic drugs and requested to commence a treatment course. “During the exam, and now that you are developing some rapport with him, you discover that he is feeling down, is embarrassed at work, and has started to avoid social situations.” This is illustrative of a patient who should be screened for mental health conditions, specifically using PHQ-2, she said.
“You can be the person at the front line to screen these patients for mental health conditions, and, specifically for depression, with PHQ-2,” she said. PHQ-2 scores range from 0 to 6, and a score of 3 or higher is considered a positive screen.
“This is where your relationship with another health provider who is most qualified to care for these patients and validate them for their mental health condition can be absolutely critical,” Dr. Wallace said.
Successful PsD treatment lessens the risk for mental health comorbidities, and this is also seen in psoriatic arthritis, Dr. Wallace pointed out. Patient education is critical regarding their increased risk for depression and potential suicidal ideation, she added.
“It’s our job as clinicians to provide patients with an understandable, easy-to-digest review of systemic medications and warnings on depression and suicidality so that they can be aware of these factors.”
Perspective from Dr. Merola
In an interview, Dr. Merola, a double board-certified dermatologist and rheumatologist at Brigham and Women’s Hospital, Boston, discussed the interactions between mental and physical illness.
“One of the things we are learning is that it’s very much a multifactorial issue, in that skin and joints contribute, in some obvious ways, to anxiety and depression, like the fact that somebody doesn’t feel good about their appearance, or they can’t complete daily activities,” he said. “Those are the more obvious ones. But there is data and evidence that there is a biology behind that as well – inflammatory cytokines that drive skin disease probably also have a direct impact on the CNS and probably also drive anxiety and depression.
“We know that disordered sleep contributes to anxiety – think about how we feel if we get a horrible night’s sleep ... it’s hard to pick apart: ‘Am I depressed, am I anxious because I am having too much coffee? Because I am fatigued?’ So, we get into these circles, but the point is, we have to break these cycles, and we have to do it in multiple places. Yes, we have to fix the skin and the joints, but we also have to have interventions and think about how to screen for anxiety and depression. We also have to think about identifying disordered sleep, and how we intervene there as well.”
These challenges require a collaborative approach among physicians. “We can help patients to build their team that gets them help for their skin, for their joints, for their anxiety or depression, their disordered sleep, for their nutritional disorders, their obesity, and so on. So, we are trying to pick apart and unpack those complexities,” he said.
In regard to the potential impacts of this holistic strategy on physician workloads, Dr. Merola acknowledged it is important to consider physician wellness. “There’s no question that we want to be doing the best we can for our colleagues, but we don’t want to overload our colleagues by saying, ‘By the way, not only should we be treating their skin and joints,’ which of course we should be doing, but ‘could you also manage their diabetes, their obesity, their disordered sleep, their anxiety, their depression, difficulties with insurance, getting access to treatments, etc.’
“This is where effective collaboration between physicians becomes important,” he stressed. “We can’t manage every single piece, but we can make sure our patients are informed, are aware, and assist them to get the help that they need.”
In the United States, there “is a real issue” with access to mental health care and greater awareness needs to be created around this issue, he added.
Dr. Wallace and Dr. Merola report no relevant financial relationships.
A version of this article first appeared on Medscape.com.
AT GRAPPA 2023
Experts call for early screening for chronic kidney disease
MADRID – A late diagnosis of chronic kidney disease is cause for concern. Scientific societies are therefore advocating for screening at younger ages to reverse this trend and slow the progression of the disease. Nearly all patients seen in primary care are candidates for screening because of their risk factors for kidney disease.
During the 29th National Conference of General and Family Medicine of the Spanish Society for General and Family Physicians, Teresa Benedito, MD, family doctor and member of the society’s cardiovascular group, and Roberto Alcázar, MD, nephrologist at the Infanta Leonor University Hospital, Madrid, presented a clinical case encountered in primary care. They used this case to frame a strong argument for the importance of early screening for chronic kidney disease, and they discussed how to properly manage such screening.
The presentation followed the guidelines in the SEMG publication regarding the management and referral of patients with type 2 diabetes. Dr. Benedito explained that the first thing to ask oneself during a patient visit is “whether they present risk factors for kidney disease. If so, we can’t let them leave before we do a kidney screening.” She then listed the factors in question: age older than 60 years, African heritage, family history of chronic kidney disease, decreased kidney mass, weight loss at birth, hypertension, diabetes, smoking, obesity, and low socioeconomic status.
For his part, Dr. Alcázar mentioned how these factors are similar to cardiovascular risk factors, because “the kidneys are a ball of vessels with double capillarization for purifying blood. They’re the organs with the most arteries per unit of weight, so anything that can damage the arteries can damage the kidneys.”
Candidates for screening
“Chronic kidney disease develops in 15% of the adult population in Spain. So, it’s worth asking how many patients have been diagnosed and who should we should be screening.” To the factors listed above, Dr. Alcázar added treatment with nephrotoxic drugs (including nonsteroidal anti-inflammatory drugs) for patients with obstructive urinary tract disease, and a history of acute kidney injury for patients with chronic autoimmune disease or neoplasms. “Thus, nearly all patients seen in primary care would need to be screened.”
Another fundamental question raised was whether patients should be screened before age 60 years. “As a nephrologist, I feel that we have been diagnosing chronic kidney disease late, even though we’ve been doing everything by the book,” said Dr. Alcázar. In his opinion, “the answer to whether we should be screening earlier ... is yes, for two reasons: first, because it’s cost-effective, and second, because it’s very inexpensive.”
Dr. Benedito explained in detail the process for diagnosing this disease. She began by defining the disease as changes in kidney structure and function that last longer than 3 months. These changes are identified by use of two criteria: glomerular filtration rate less than 60 mL/min and kidney injury or lesions with or without reduced filtration rate (renal biopsy, albumin/creatinine ratio greater than 30 mg/g, proteinuria, alterations in urinary sediment or in imaging tests). Thus, “if one of these two criteria persists for more than 3 months, the diagnosis is chronic kidney disease. Also, high creatinine levels are not diagnostic for the disease,” she emphasized.
Two related parameters
Glomerular filtration and albuminuria “are highly relevant, because screening for chronic kidney disease is based on these two parameters,” said Dr. Benedito. Glomerular filtration rate varies with age, sex, ethnicity, and body mass. It is useful for identifying the stage of the disease and for monitoring disease progression. Albuminuria, on the other hand, is an indication of the severity of the disease. It’s an early marker for kidney injury and systemic disease and is more sensitive than proteinuria. Therefore, “this factor, together with glomerular filtration rate, allows us to detect, classify, and monitor the progression of chronic kidney disease.”
On this point, Dr. Alcázar emphasized the importance of trends, since variation in glomerular filtration depends on serum creatinine, which can vary by nearly 9%. He explained that glomerular filtration rate is related to the number of nephrons remaining. A glomerular filtration rate of less than 60 mL/min implies that more than half of the nephrons in each kidney have been lost. Albuminuria informs about structural damage (that is, the condition of the remaining nephrons). It’s therefore essential to test for both parameters. “We need to be actively monitoring and then making our decisions based on trends and not on isolated results. We need to be aware of albuminuria when we make our decisions,” said Dr. Alcázar. Some studies have shown the importance of testing for albuminuria whenever creatinine level is assessed. “We need to buy into this. If we don’t do this, we’ll only ever have half the information we need.”
Reducing late diagnosis
According to the IBERICAN study, 14% of patients seen in primary care in Spain have chronic kidney disease. “This statistic should make us stop and think, own our responsibility, and ask ourselves why this screening isn’t taking place [earlier],” said Dr. Benedito. She added, “We need to head off this trend toward late diagnosis. As the disease progresses, it significantly increases cardiovascular risk and leads to higher mortality, going on dialysis, transplants, et cetera.”
Dr. Alcázar noted that 80% of nephrology cases that are referred to him come from primary care. He explained the need to understand that “these patients have a sevenfold greater risk of suffering a serious cardiovascular event within the next year than people without kidney problems.” Most of these patients will experience an event, even if they don’t undergo dialysis (stage 3 and those near stage 4).
Correct staging
Also fundamental is having a detailed understanding of how staging is performed. Dr. Benedito explained that a chart that pairs glomerular filtration rate (six categories) with the level of albuminuria (three categories) should be used during the visit. For example, a case might be classified as G3a-A2. However, the simplified form of the chart may prove more practical. It classifies chronic kidney disease as being associated with mild, moderate, and severe risk, using different colors to aid comprehension.
Dr. Alcázar noted that the latest guidelines from the European Society of Hypertension for 2023 include albuminuria as an important parameter. The guidelines indicate that for a patient with moderate or severe risk, it is not necessary to calculate their score. “It’s considered high cardiovascular risk, and steps would need to be taken for intervention.”
He then listed the tools available for reversing albuminuria. The process begins by reducing salt consumption and involves the use of medications (angiotensin-converting enzyme inhibitors/angiotensin II receptor antagonists, aldosterone receptor antagonists, glucagon-like peptide-1 analogues, and sodium-glucose cotransporter-2 inhibitors, which slow kidney damage regardless of other measures) and strict management of cardiovascular risk factors (smoking, weight management, blood glucose, hypertension, and moderate physical activity).
Reducing cardiovascular risk
Dr. Alcázar highlighted important factors to keep in mind when managing each of the cardiovascular risk factors. For hypertension, the aim is to achieve levels less than 130/80 mm Hg, although recommendations vary, depending on the guidelines consulted. “KDIGO (Kidney Disease: Improving Global Outcomes) 2021 states that there is no evidence for monitoring diastolic blood pressure, only systolic blood pressure. If we measure it according to the standardized form, SBP should be less than 120 mm Hg, and if not, we would fall back on readings of 130/80 mm Hg.”
For lipid control (specifically, low-density lipoprotein cholesterol), the staging chart indicates that for patients at mild risk, levels should be less than 100 mg/dL; for those at moderate risk, less than 70 mg/dL; and for those at severe risk, less than 55 mg/dL. Hypertriglyceridemia “should only be treated with fibrates if it comes in over 1,000 mg/dL. Also, care must be taken, because these drugs interfere with creatinine excretion, increasing it,” said Dr. Alcázar.
Guidelines from the KDIGO and the American Diabetes Association state that anyone with diabetes and chronic kidney disease should receive a sodium-glucose cotransporter-2 inhibitor if their glomerular filtration rate exceeds 20 mL/min, “which may contradict slightly what it says on the label. Also, if they have hypertension, they should take an angiotensin-converting enzyme inhibitor,” said Dr. Alcázar. He added that “oral antidiabetics, including metformin, must be adjusted based on renal function if glomerular filtration rate is under 30 mL/min.”
Act immediately
When asked whether the course of chronic kidney disease can be changed, Dr. Alcázar responded with an emphatic yes and added that cardiovascular risk can also be substantially reduced. “As nephrologists, we don’t have access to patients in early stages. But family doctors do. Hence the importance of early screening, because going on dialysis at age 60 isn’t the same as at 80.” Currently, “scientific societies are encouraging authorities to screen for chronic kidney disease at earlier ages.”
Regarding drug-based therapy, Dr. Alcázar said that “empagliflozin is not currently indicated for chronic kidney disease in adults.” This sodium-glucose cotransporter-2 inhibitor delays kidney disease and reduces morbidity. Both benefits were highlighted in two recent studies (DAPA-CKD and CREDENCE). Published in January, EMPA-KIDNEY presents a new twist on nephroprotection for patients with chronic kidney disease (diabetic or not) whose glomerular filtration rates are between 20 and 40 mL/min without albuminuria or whose glomerular filtration rates are between 45 and 90 mL/min with albuminuria. For more than 6,000 patients, empagliflozin was observed “to clearly reduce kidney disease progression, cardiovascular mortality and all-cause mortality, and the need to go on dialysis,” stated Dr. Alcázar.
What professionals expect
Dr. Benedito also explained the criteria for referral to a specialist: glomerular filtration rate less than 30 mL/min (unless the patient is older than 80 years and does not have progressively worsening renal function), albumin/creatinine ratio greater than 300 mg/g, acute worsening of renal function, progressive worsening of renal function of greater than 5 mL/min/yr, chronic kidney disease, hypertension treated with triple therapy (including a diuretic) at maximum doses, anemia of less than 10 g/dL, and nonurologic hematuria, especially in combination with albuminuria.
Dr. Benedito explained what nephrologists expect from family doctors in the management of chronic kidney disease: “screening for early detection, identifying and treating risk factors for chronic kidney disease, detecting progression and complications, adjusting drugs based on glomerular filtration rate, and ensuring that our patients are benefiting from sodium-glucose cotransporter-2 inhibitors. These are among the most important steps to be taken.”
Dr. Alcázar mentioned what family doctors expect from nephrologists: “two-way communication, accessibility, coordination of actions to be taken, and using shared and mutually agreed-upon protocols.”
This article was translated from the Medscape Spanish Edition and a version appeared on Medscape.com.
MADRID – A late diagnosis of chronic kidney disease is cause for concern. Scientific societies are therefore advocating for screening at younger ages to reverse this trend and slow the progression of the disease. Nearly all patients seen in primary care are candidates for screening because of their risk factors for kidney disease.
During the 29th National Conference of General and Family Medicine of the Spanish Society for General and Family Physicians, Teresa Benedito, MD, family doctor and member of the society’s cardiovascular group, and Roberto Alcázar, MD, nephrologist at the Infanta Leonor University Hospital, Madrid, presented a clinical case encountered in primary care. They used this case to frame a strong argument for the importance of early screening for chronic kidney disease, and they discussed how to properly manage such screening.
The presentation followed the guidelines in the SEMG publication regarding the management and referral of patients with type 2 diabetes. Dr. Benedito explained that the first thing to ask oneself during a patient visit is “whether they present risk factors for kidney disease. If so, we can’t let them leave before we do a kidney screening.” She then listed the factors in question: age older than 60 years, African heritage, family history of chronic kidney disease, decreased kidney mass, weight loss at birth, hypertension, diabetes, smoking, obesity, and low socioeconomic status.
For his part, Dr. Alcázar mentioned how these factors are similar to cardiovascular risk factors, because “the kidneys are a ball of vessels with double capillarization for purifying blood. They’re the organs with the most arteries per unit of weight, so anything that can damage the arteries can damage the kidneys.”
Candidates for screening
“Chronic kidney disease develops in 15% of the adult population in Spain. So, it’s worth asking how many patients have been diagnosed and who should we should be screening.” To the factors listed above, Dr. Alcázar added treatment with nephrotoxic drugs (including nonsteroidal anti-inflammatory drugs) for patients with obstructive urinary tract disease, and a history of acute kidney injury for patients with chronic autoimmune disease or neoplasms. “Thus, nearly all patients seen in primary care would need to be screened.”
Another fundamental question raised was whether patients should be screened before age 60 years. “As a nephrologist, I feel that we have been diagnosing chronic kidney disease late, even though we’ve been doing everything by the book,” said Dr. Alcázar. In his opinion, “the answer to whether we should be screening earlier ... is yes, for two reasons: first, because it’s cost-effective, and second, because it’s very inexpensive.”
Dr. Benedito explained in detail the process for diagnosing this disease. She began by defining the disease as changes in kidney structure and function that last longer than 3 months. These changes are identified by use of two criteria: glomerular filtration rate less than 60 mL/min and kidney injury or lesions with or without reduced filtration rate (renal biopsy, albumin/creatinine ratio greater than 30 mg/g, proteinuria, alterations in urinary sediment or in imaging tests). Thus, “if one of these two criteria persists for more than 3 months, the diagnosis is chronic kidney disease. Also, high creatinine levels are not diagnostic for the disease,” she emphasized.
Two related parameters
Glomerular filtration and albuminuria “are highly relevant, because screening for chronic kidney disease is based on these two parameters,” said Dr. Benedito. Glomerular filtration rate varies with age, sex, ethnicity, and body mass. It is useful for identifying the stage of the disease and for monitoring disease progression. Albuminuria, on the other hand, is an indication of the severity of the disease. It’s an early marker for kidney injury and systemic disease and is more sensitive than proteinuria. Therefore, “this factor, together with glomerular filtration rate, allows us to detect, classify, and monitor the progression of chronic kidney disease.”
On this point, Dr. Alcázar emphasized the importance of trends, since variation in glomerular filtration depends on serum creatinine, which can vary by nearly 9%. He explained that glomerular filtration rate is related to the number of nephrons remaining. A glomerular filtration rate of less than 60 mL/min implies that more than half of the nephrons in each kidney have been lost. Albuminuria informs about structural damage (that is, the condition of the remaining nephrons). It’s therefore essential to test for both parameters. “We need to be actively monitoring and then making our decisions based on trends and not on isolated results. We need to be aware of albuminuria when we make our decisions,” said Dr. Alcázar. Some studies have shown the importance of testing for albuminuria whenever creatinine level is assessed. “We need to buy into this. If we don’t do this, we’ll only ever have half the information we need.”
Reducing late diagnosis
According to the IBERICAN study, 14% of patients seen in primary care in Spain have chronic kidney disease. “This statistic should make us stop and think, own our responsibility, and ask ourselves why this screening isn’t taking place [earlier],” said Dr. Benedito. She added, “We need to head off this trend toward late diagnosis. As the disease progresses, it significantly increases cardiovascular risk and leads to higher mortality, going on dialysis, transplants, et cetera.”
Dr. Alcázar noted that 80% of nephrology cases that are referred to him come from primary care. He explained the need to understand that “these patients have a sevenfold greater risk of suffering a serious cardiovascular event within the next year than people without kidney problems.” Most of these patients will experience an event, even if they don’t undergo dialysis (stage 3 and those near stage 4).
Correct staging
Also fundamental is having a detailed understanding of how staging is performed. Dr. Benedito explained that a chart that pairs glomerular filtration rate (six categories) with the level of albuminuria (three categories) should be used during the visit. For example, a case might be classified as G3a-A2. However, the simplified form of the chart may prove more practical. It classifies chronic kidney disease as being associated with mild, moderate, and severe risk, using different colors to aid comprehension.
Dr. Alcázar noted that the latest guidelines from the European Society of Hypertension for 2023 include albuminuria as an important parameter. The guidelines indicate that for a patient with moderate or severe risk, it is not necessary to calculate their score. “It’s considered high cardiovascular risk, and steps would need to be taken for intervention.”
He then listed the tools available for reversing albuminuria. The process begins by reducing salt consumption and involves the use of medications (angiotensin-converting enzyme inhibitors/angiotensin II receptor antagonists, aldosterone receptor antagonists, glucagon-like peptide-1 analogues, and sodium-glucose cotransporter-2 inhibitors, which slow kidney damage regardless of other measures) and strict management of cardiovascular risk factors (smoking, weight management, blood glucose, hypertension, and moderate physical activity).
Reducing cardiovascular risk
Dr. Alcázar highlighted important factors to keep in mind when managing each of the cardiovascular risk factors. For hypertension, the aim is to achieve levels less than 130/80 mm Hg, although recommendations vary, depending on the guidelines consulted. “KDIGO (Kidney Disease: Improving Global Outcomes) 2021 states that there is no evidence for monitoring diastolic blood pressure, only systolic blood pressure. If we measure it according to the standardized form, SBP should be less than 120 mm Hg, and if not, we would fall back on readings of 130/80 mm Hg.”
For lipid control (specifically, low-density lipoprotein cholesterol), the staging chart indicates that for patients at mild risk, levels should be less than 100 mg/dL; for those at moderate risk, less than 70 mg/dL; and for those at severe risk, less than 55 mg/dL. Hypertriglyceridemia “should only be treated with fibrates if it comes in over 1,000 mg/dL. Also, care must be taken, because these drugs interfere with creatinine excretion, increasing it,” said Dr. Alcázar.
Guidelines from the KDIGO and the American Diabetes Association state that anyone with diabetes and chronic kidney disease should receive a sodium-glucose cotransporter-2 inhibitor if their glomerular filtration rate exceeds 20 mL/min, “which may contradict slightly what it says on the label. Also, if they have hypertension, they should take an angiotensin-converting enzyme inhibitor,” said Dr. Alcázar. He added that “oral antidiabetics, including metformin, must be adjusted based on renal function if glomerular filtration rate is under 30 mL/min.”
Act immediately
When asked whether the course of chronic kidney disease can be changed, Dr. Alcázar responded with an emphatic yes and added that cardiovascular risk can also be substantially reduced. “As nephrologists, we don’t have access to patients in early stages. But family doctors do. Hence the importance of early screening, because going on dialysis at age 60 isn’t the same as at 80.” Currently, “scientific societies are encouraging authorities to screen for chronic kidney disease at earlier ages.”
Regarding drug-based therapy, Dr. Alcázar said that “empagliflozin is not currently indicated for chronic kidney disease in adults.” This sodium-glucose cotransporter-2 inhibitor delays kidney disease and reduces morbidity. Both benefits were highlighted in two recent studies (DAPA-CKD and CREDENCE). Published in January, EMPA-KIDNEY presents a new twist on nephroprotection for patients with chronic kidney disease (diabetic or not) whose glomerular filtration rates are between 20 and 40 mL/min without albuminuria or whose glomerular filtration rates are between 45 and 90 mL/min with albuminuria. For more than 6,000 patients, empagliflozin was observed “to clearly reduce kidney disease progression, cardiovascular mortality and all-cause mortality, and the need to go on dialysis,” stated Dr. Alcázar.
What professionals expect
Dr. Benedito also explained the criteria for referral to a specialist: glomerular filtration rate less than 30 mL/min (unless the patient is older than 80 years and does not have progressively worsening renal function), albumin/creatinine ratio greater than 300 mg/g, acute worsening of renal function, progressive worsening of renal function of greater than 5 mL/min/yr, chronic kidney disease, hypertension treated with triple therapy (including a diuretic) at maximum doses, anemia of less than 10 g/dL, and nonurologic hematuria, especially in combination with albuminuria.
Dr. Benedito explained what nephrologists expect from family doctors in the management of chronic kidney disease: “screening for early detection, identifying and treating risk factors for chronic kidney disease, detecting progression and complications, adjusting drugs based on glomerular filtration rate, and ensuring that our patients are benefiting from sodium-glucose cotransporter-2 inhibitors. These are among the most important steps to be taken.”
Dr. Alcázar mentioned what family doctors expect from nephrologists: “two-way communication, accessibility, coordination of actions to be taken, and using shared and mutually agreed-upon protocols.”
This article was translated from the Medscape Spanish Edition and a version appeared on Medscape.com.
MADRID – A late diagnosis of chronic kidney disease is cause for concern. Scientific societies are therefore advocating for screening at younger ages to reverse this trend and slow the progression of the disease. Nearly all patients seen in primary care are candidates for screening because of their risk factors for kidney disease.
During the 29th National Conference of General and Family Medicine of the Spanish Society for General and Family Physicians, Teresa Benedito, MD, family doctor and member of the society’s cardiovascular group, and Roberto Alcázar, MD, nephrologist at the Infanta Leonor University Hospital, Madrid, presented a clinical case encountered in primary care. They used this case to frame a strong argument for the importance of early screening for chronic kidney disease, and they discussed how to properly manage such screening.
The presentation followed the guidelines in the SEMG publication regarding the management and referral of patients with type 2 diabetes. Dr. Benedito explained that the first thing to ask oneself during a patient visit is “whether they present risk factors for kidney disease. If so, we can’t let them leave before we do a kidney screening.” She then listed the factors in question: age older than 60 years, African heritage, family history of chronic kidney disease, decreased kidney mass, weight loss at birth, hypertension, diabetes, smoking, obesity, and low socioeconomic status.
For his part, Dr. Alcázar mentioned how these factors are similar to cardiovascular risk factors, because “the kidneys are a ball of vessels with double capillarization for purifying blood. They’re the organs with the most arteries per unit of weight, so anything that can damage the arteries can damage the kidneys.”
Candidates for screening
“Chronic kidney disease develops in 15% of the adult population in Spain. So, it’s worth asking how many patients have been diagnosed and who should we should be screening.” To the factors listed above, Dr. Alcázar added treatment with nephrotoxic drugs (including nonsteroidal anti-inflammatory drugs) for patients with obstructive urinary tract disease, and a history of acute kidney injury for patients with chronic autoimmune disease or neoplasms. “Thus, nearly all patients seen in primary care would need to be screened.”
Another fundamental question raised was whether patients should be screened before age 60 years. “As a nephrologist, I feel that we have been diagnosing chronic kidney disease late, even though we’ve been doing everything by the book,” said Dr. Alcázar. In his opinion, “the answer to whether we should be screening earlier ... is yes, for two reasons: first, because it’s cost-effective, and second, because it’s very inexpensive.”
Dr. Benedito explained in detail the process for diagnosing this disease. She began by defining the disease as changes in kidney structure and function that last longer than 3 months. These changes are identified by use of two criteria: glomerular filtration rate less than 60 mL/min and kidney injury or lesions with or without reduced filtration rate (renal biopsy, albumin/creatinine ratio greater than 30 mg/g, proteinuria, alterations in urinary sediment or in imaging tests). Thus, “if one of these two criteria persists for more than 3 months, the diagnosis is chronic kidney disease. Also, high creatinine levels are not diagnostic for the disease,” she emphasized.
Two related parameters
Glomerular filtration and albuminuria “are highly relevant, because screening for chronic kidney disease is based on these two parameters,” said Dr. Benedito. Glomerular filtration rate varies with age, sex, ethnicity, and body mass. It is useful for identifying the stage of the disease and for monitoring disease progression. Albuminuria, on the other hand, is an indication of the severity of the disease. It’s an early marker for kidney injury and systemic disease and is more sensitive than proteinuria. Therefore, “this factor, together with glomerular filtration rate, allows us to detect, classify, and monitor the progression of chronic kidney disease.”
On this point, Dr. Alcázar emphasized the importance of trends, since variation in glomerular filtration depends on serum creatinine, which can vary by nearly 9%. He explained that glomerular filtration rate is related to the number of nephrons remaining. A glomerular filtration rate of less than 60 mL/min implies that more than half of the nephrons in each kidney have been lost. Albuminuria informs about structural damage (that is, the condition of the remaining nephrons). It’s therefore essential to test for both parameters. “We need to be actively monitoring and then making our decisions based on trends and not on isolated results. We need to be aware of albuminuria when we make our decisions,” said Dr. Alcázar. Some studies have shown the importance of testing for albuminuria whenever creatinine level is assessed. “We need to buy into this. If we don’t do this, we’ll only ever have half the information we need.”
Reducing late diagnosis
According to the IBERICAN study, 14% of patients seen in primary care in Spain have chronic kidney disease. “This statistic should make us stop and think, own our responsibility, and ask ourselves why this screening isn’t taking place [earlier],” said Dr. Benedito. She added, “We need to head off this trend toward late diagnosis. As the disease progresses, it significantly increases cardiovascular risk and leads to higher mortality, going on dialysis, transplants, et cetera.”
Dr. Alcázar noted that 80% of nephrology cases that are referred to him come from primary care. He explained the need to understand that “these patients have a sevenfold greater risk of suffering a serious cardiovascular event within the next year than people without kidney problems.” Most of these patients will experience an event, even if they don’t undergo dialysis (stage 3 and those near stage 4).
Correct staging
Also fundamental is having a detailed understanding of how staging is performed. Dr. Benedito explained that a chart that pairs glomerular filtration rate (six categories) with the level of albuminuria (three categories) should be used during the visit. For example, a case might be classified as G3a-A2. However, the simplified form of the chart may prove more practical. It classifies chronic kidney disease as being associated with mild, moderate, and severe risk, using different colors to aid comprehension.
Dr. Alcázar noted that the latest guidelines from the European Society of Hypertension for 2023 include albuminuria as an important parameter. The guidelines indicate that for a patient with moderate or severe risk, it is not necessary to calculate their score. “It’s considered high cardiovascular risk, and steps would need to be taken for intervention.”
He then listed the tools available for reversing albuminuria. The process begins by reducing salt consumption and involves the use of medications (angiotensin-converting enzyme inhibitors/angiotensin II receptor antagonists, aldosterone receptor antagonists, glucagon-like peptide-1 analogues, and sodium-glucose cotransporter-2 inhibitors, which slow kidney damage regardless of other measures) and strict management of cardiovascular risk factors (smoking, weight management, blood glucose, hypertension, and moderate physical activity).
Reducing cardiovascular risk
Dr. Alcázar highlighted important factors to keep in mind when managing each of the cardiovascular risk factors. For hypertension, the aim is to achieve levels less than 130/80 mm Hg, although recommendations vary, depending on the guidelines consulted. “KDIGO (Kidney Disease: Improving Global Outcomes) 2021 states that there is no evidence for monitoring diastolic blood pressure, only systolic blood pressure. If we measure it according to the standardized form, SBP should be less than 120 mm Hg, and if not, we would fall back on readings of 130/80 mm Hg.”
For lipid control (specifically, low-density lipoprotein cholesterol), the staging chart indicates that for patients at mild risk, levels should be less than 100 mg/dL; for those at moderate risk, less than 70 mg/dL; and for those at severe risk, less than 55 mg/dL. Hypertriglyceridemia “should only be treated with fibrates if it comes in over 1,000 mg/dL. Also, care must be taken, because these drugs interfere with creatinine excretion, increasing it,” said Dr. Alcázar.
Guidelines from the KDIGO and the American Diabetes Association state that anyone with diabetes and chronic kidney disease should receive a sodium-glucose cotransporter-2 inhibitor if their glomerular filtration rate exceeds 20 mL/min, “which may contradict slightly what it says on the label. Also, if they have hypertension, they should take an angiotensin-converting enzyme inhibitor,” said Dr. Alcázar. He added that “oral antidiabetics, including metformin, must be adjusted based on renal function if glomerular filtration rate is under 30 mL/min.”
Act immediately
When asked whether the course of chronic kidney disease can be changed, Dr. Alcázar responded with an emphatic yes and added that cardiovascular risk can also be substantially reduced. “As nephrologists, we don’t have access to patients in early stages. But family doctors do. Hence the importance of early screening, because going on dialysis at age 60 isn’t the same as at 80.” Currently, “scientific societies are encouraging authorities to screen for chronic kidney disease at earlier ages.”
Regarding drug-based therapy, Dr. Alcázar said that “empagliflozin is not currently indicated for chronic kidney disease in adults.” This sodium-glucose cotransporter-2 inhibitor delays kidney disease and reduces morbidity. Both benefits were highlighted in two recent studies (DAPA-CKD and CREDENCE). Published in January, EMPA-KIDNEY presents a new twist on nephroprotection for patients with chronic kidney disease (diabetic or not) whose glomerular filtration rates are between 20 and 40 mL/min without albuminuria or whose glomerular filtration rates are between 45 and 90 mL/min with albuminuria. For more than 6,000 patients, empagliflozin was observed “to clearly reduce kidney disease progression, cardiovascular mortality and all-cause mortality, and the need to go on dialysis,” stated Dr. Alcázar.
What professionals expect
Dr. Benedito also explained the criteria for referral to a specialist: glomerular filtration rate less than 30 mL/min (unless the patient is older than 80 years and does not have progressively worsening renal function), albumin/creatinine ratio greater than 300 mg/g, acute worsening of renal function, progressive worsening of renal function of greater than 5 mL/min/yr, chronic kidney disease, hypertension treated with triple therapy (including a diuretic) at maximum doses, anemia of less than 10 g/dL, and nonurologic hematuria, especially in combination with albuminuria.
Dr. Benedito explained what nephrologists expect from family doctors in the management of chronic kidney disease: “screening for early detection, identifying and treating risk factors for chronic kidney disease, detecting progression and complications, adjusting drugs based on glomerular filtration rate, and ensuring that our patients are benefiting from sodium-glucose cotransporter-2 inhibitors. These are among the most important steps to be taken.”
Dr. Alcázar mentioned what family doctors expect from nephrologists: “two-way communication, accessibility, coordination of actions to be taken, and using shared and mutually agreed-upon protocols.”
This article was translated from the Medscape Spanish Edition and a version appeared on Medscape.com.
U.S. states, counties with highest Alzheimer’s prevalence rates identified
Investigators at Rush University in Chicago found AD prevalence was highest in Maryland, New York, Mississippi, and Florida. At the county level, Miami-Dade in Florida, Baltimore city, and Bronx County in New York were among the U.S. counties with the highest prevalence of the disease.
Such geographical variations may be caused by the unique make-up of regional populations, study investigator Kumar Rajan, PhD, professor of medicine and director of Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, said in an interview.
Dr. Rajan presented the research at the Alzheimer’s Association International Conference.
High-impact research
An estimated 6.7 million Americans are living with AD, a figure that’s expected to double by 2050. Estimating the prevalence of Alzheimer’s across states’ counties can provide a better understanding of region-specific disease burden and have policy implications for resource allocation, Dr. Rajan noted.
To determine the state- and county-specific prevalence of AD, the researchers applied AD data from the Chicago Health and Aging Project, a population-based study that’s about 60% African American, to county- and state-level data from the National Center for Health Statistics.
“We used estimates in our study in Chicago, which began in the 1990s and has approximately 10,800 people, and projected those estimates to county-level populations to see what the variations look like,” said Dr. Rajan.
Of 3,142 counties in 50 states, the East and Southeastern regions of the United States had the highest AD prevalence. For states, the highest rates were in Maryland (12.9%), New York (12.7%), Mississippi (12.5%), and Florida (12.5%).
California and Illinois were also among the top 10 states with the highest prevalence of Alzheimer’s.
California had the highest number of residents, with 719,000 (95% confidence interval, 665,000-774,400), followed by Florida with 579,000 (95% CI, 539,900 to 620,000), and Texas with 459,000 (95% CI, 422,700 to 496,000).
The three counties with the highest prevalence, all with 16.6%, were Miami-Dade County, Baltimore city, and Bronx County.
One county in the top 10 for AD prevalence was El Paso, Tex., which Dr. Rajan found “a bit surprising,” as Texas was not among the top four states with the highest prevalence.
In addition to older age, what’s likely driving elevated AD prevalence in these areas is the substantially larger proportion of minority populations who are at higher risk for AD, possibly due to health disparities, said Dr. Rajan.
Determining local-level estimates of AD should have “a very high impact” on public health programs aimed at AD prevention, detection, and treatment, he said. In addition, as more AD drugs are approved, there will likely be county-level and even state-level implications for Medicare coverage.
In addition, these new findings could help physicians treating or caring for minority populations “understand the landscape of what the disease looks like,” said Dr. Rajan.
A limitation of the study was that it was based on data from a single study, he noted.
The next step is to expand this research. Dr. Rajan and others are establishing the Regional and Ethnic Variations in Alzheimer’s and Cognitive Health Consortium, with the goal of gaining a better understanding of AD prevalence across six U.S. regions.
Optimal resource distribution
In a comment, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said the research provides useful information about AD prevalence at the local level.
“We need to understand how specific demographics and characteristics can help explain some of the high prevalence in certain areas.”
Compared with White Americans, Dr. Griffin noted that Black Americans are twice as likely to have AD, and older Hispanic Americans are 1.5 times as likely.
This new data will help pinpoint areas of high risk and high need so that funding, staffing, and other resources for those with AD and other dementias can be optimally distributed, he said.
“It gives us that kind of geographic specificity in terms of the prevalence so we can dig deeper and better allocate resources on a county level,” he added.
The Alzheimer’s Association “is fully committed to working with local agencies and being in the communities to assist them in their efforts to intervene in this disease.”
The study also highlights the need for more research to determine what factors other than age and race – such as potential environmental factors – might affect regional AD prevalence, he said.
The study received funding from the National Institutes of Health. Dr. Rajan and Dr. Griffin reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Investigators at Rush University in Chicago found AD prevalence was highest in Maryland, New York, Mississippi, and Florida. At the county level, Miami-Dade in Florida, Baltimore city, and Bronx County in New York were among the U.S. counties with the highest prevalence of the disease.
Such geographical variations may be caused by the unique make-up of regional populations, study investigator Kumar Rajan, PhD, professor of medicine and director of Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, said in an interview.
Dr. Rajan presented the research at the Alzheimer’s Association International Conference.
High-impact research
An estimated 6.7 million Americans are living with AD, a figure that’s expected to double by 2050. Estimating the prevalence of Alzheimer’s across states’ counties can provide a better understanding of region-specific disease burden and have policy implications for resource allocation, Dr. Rajan noted.
To determine the state- and county-specific prevalence of AD, the researchers applied AD data from the Chicago Health and Aging Project, a population-based study that’s about 60% African American, to county- and state-level data from the National Center for Health Statistics.
“We used estimates in our study in Chicago, which began in the 1990s and has approximately 10,800 people, and projected those estimates to county-level populations to see what the variations look like,” said Dr. Rajan.
Of 3,142 counties in 50 states, the East and Southeastern regions of the United States had the highest AD prevalence. For states, the highest rates were in Maryland (12.9%), New York (12.7%), Mississippi (12.5%), and Florida (12.5%).
California and Illinois were also among the top 10 states with the highest prevalence of Alzheimer’s.
California had the highest number of residents, with 719,000 (95% confidence interval, 665,000-774,400), followed by Florida with 579,000 (95% CI, 539,900 to 620,000), and Texas with 459,000 (95% CI, 422,700 to 496,000).
The three counties with the highest prevalence, all with 16.6%, were Miami-Dade County, Baltimore city, and Bronx County.
One county in the top 10 for AD prevalence was El Paso, Tex., which Dr. Rajan found “a bit surprising,” as Texas was not among the top four states with the highest prevalence.
In addition to older age, what’s likely driving elevated AD prevalence in these areas is the substantially larger proportion of minority populations who are at higher risk for AD, possibly due to health disparities, said Dr. Rajan.
Determining local-level estimates of AD should have “a very high impact” on public health programs aimed at AD prevention, detection, and treatment, he said. In addition, as more AD drugs are approved, there will likely be county-level and even state-level implications for Medicare coverage.
In addition, these new findings could help physicians treating or caring for minority populations “understand the landscape of what the disease looks like,” said Dr. Rajan.
A limitation of the study was that it was based on data from a single study, he noted.
The next step is to expand this research. Dr. Rajan and others are establishing the Regional and Ethnic Variations in Alzheimer’s and Cognitive Health Consortium, with the goal of gaining a better understanding of AD prevalence across six U.S. regions.
Optimal resource distribution
In a comment, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said the research provides useful information about AD prevalence at the local level.
“We need to understand how specific demographics and characteristics can help explain some of the high prevalence in certain areas.”
Compared with White Americans, Dr. Griffin noted that Black Americans are twice as likely to have AD, and older Hispanic Americans are 1.5 times as likely.
This new data will help pinpoint areas of high risk and high need so that funding, staffing, and other resources for those with AD and other dementias can be optimally distributed, he said.
“It gives us that kind of geographic specificity in terms of the prevalence so we can dig deeper and better allocate resources on a county level,” he added.
The Alzheimer’s Association “is fully committed to working with local agencies and being in the communities to assist them in their efforts to intervene in this disease.”
The study also highlights the need for more research to determine what factors other than age and race – such as potential environmental factors – might affect regional AD prevalence, he said.
The study received funding from the National Institutes of Health. Dr. Rajan and Dr. Griffin reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
Investigators at Rush University in Chicago found AD prevalence was highest in Maryland, New York, Mississippi, and Florida. At the county level, Miami-Dade in Florida, Baltimore city, and Bronx County in New York were among the U.S. counties with the highest prevalence of the disease.
Such geographical variations may be caused by the unique make-up of regional populations, study investigator Kumar Rajan, PhD, professor of medicine and director of Rush Institute for Healthy Aging, Rush University Medical Center, Chicago, said in an interview.
Dr. Rajan presented the research at the Alzheimer’s Association International Conference.
High-impact research
An estimated 6.7 million Americans are living with AD, a figure that’s expected to double by 2050. Estimating the prevalence of Alzheimer’s across states’ counties can provide a better understanding of region-specific disease burden and have policy implications for resource allocation, Dr. Rajan noted.
To determine the state- and county-specific prevalence of AD, the researchers applied AD data from the Chicago Health and Aging Project, a population-based study that’s about 60% African American, to county- and state-level data from the National Center for Health Statistics.
“We used estimates in our study in Chicago, which began in the 1990s and has approximately 10,800 people, and projected those estimates to county-level populations to see what the variations look like,” said Dr. Rajan.
Of 3,142 counties in 50 states, the East and Southeastern regions of the United States had the highest AD prevalence. For states, the highest rates were in Maryland (12.9%), New York (12.7%), Mississippi (12.5%), and Florida (12.5%).
California and Illinois were also among the top 10 states with the highest prevalence of Alzheimer’s.
California had the highest number of residents, with 719,000 (95% confidence interval, 665,000-774,400), followed by Florida with 579,000 (95% CI, 539,900 to 620,000), and Texas with 459,000 (95% CI, 422,700 to 496,000).
The three counties with the highest prevalence, all with 16.6%, were Miami-Dade County, Baltimore city, and Bronx County.
One county in the top 10 for AD prevalence was El Paso, Tex., which Dr. Rajan found “a bit surprising,” as Texas was not among the top four states with the highest prevalence.
In addition to older age, what’s likely driving elevated AD prevalence in these areas is the substantially larger proportion of minority populations who are at higher risk for AD, possibly due to health disparities, said Dr. Rajan.
Determining local-level estimates of AD should have “a very high impact” on public health programs aimed at AD prevention, detection, and treatment, he said. In addition, as more AD drugs are approved, there will likely be county-level and even state-level implications for Medicare coverage.
In addition, these new findings could help physicians treating or caring for minority populations “understand the landscape of what the disease looks like,” said Dr. Rajan.
A limitation of the study was that it was based on data from a single study, he noted.
The next step is to expand this research. Dr. Rajan and others are establishing the Regional and Ethnic Variations in Alzheimer’s and Cognitive Health Consortium, with the goal of gaining a better understanding of AD prevalence across six U.S. regions.
Optimal resource distribution
In a comment, Percy Griffin, PhD, director of scientific engagement, Alzheimer’s Association, said the research provides useful information about AD prevalence at the local level.
“We need to understand how specific demographics and characteristics can help explain some of the high prevalence in certain areas.”
Compared with White Americans, Dr. Griffin noted that Black Americans are twice as likely to have AD, and older Hispanic Americans are 1.5 times as likely.
This new data will help pinpoint areas of high risk and high need so that funding, staffing, and other resources for those with AD and other dementias can be optimally distributed, he said.
“It gives us that kind of geographic specificity in terms of the prevalence so we can dig deeper and better allocate resources on a county level,” he added.
The Alzheimer’s Association “is fully committed to working with local agencies and being in the communities to assist them in their efforts to intervene in this disease.”
The study also highlights the need for more research to determine what factors other than age and race – such as potential environmental factors – might affect regional AD prevalence, he said.
The study received funding from the National Institutes of Health. Dr. Rajan and Dr. Griffin reported no relevant financial relationships.
A version of this article first appeared on Medscape.com.
FROM AAIC 2023
Naltrexone is safe and beneficial in AUD with cirrhosis
VIENNA – , results of the first randomized controlled trial (RCT) show.
After 3 months, 64% of patients who received naltrexone were abstinent from alcohol, compared with 22% of patients who received placebo, Manasa Alla, MD, a hepatologist from the Institute of Liver and Biliary Sciences (ILBS), New Delhi, said at the European Association for the Study of the Liver (EASL) 2023, where she presented the study findings.
Importantly, naltrexone was found to be safe for patients with compensated cirrhosis. “This fragile population of patients has limited drugs to help them quit alcohol. Naltrexone can be a valuable addition to their measures to reduce craving and on their journey to reach de-addiction and abstinence,” Dr. Alla said.
Hepatotoxicity with naltrexone is rare and data are limited. The Food and Drug Administration previously placed a warning on its use for patients with alcoholic liver disease and underlying cirrhosis.
As a clinician constantly challenged with treating patients with AUD and cirrhosis, Dr. Alla wanted to explore the safety of naltrexone and to test its suitability for these patients who struggle to quit alcohol.
“Here we aimed to primarily test the safety of naltrexone in achieving abstinence and reducing alcohol cravings in patients with alcohol-related cirrhosis,” she said, adding, “The FDA black box warning has been removed, but it has never been tested in an RCT in patients with cirrhosis, so this is exactly what we did here.
“Naltrexone is a very good anti-alcohol-craving drug. If we can establish its safety in cirrhotic patients, it may have very good potential in reducing AUD and reducing the related complications of continued alcohol intake,” Dr. Alla said.
Safety, abstinence, lapse, and relapse assessed
The prospective, double-blind, single-center study at the ILBS in New Delhi, enrolled 100 patients with alcohol dependence and cirrhosis between 2020 and 2022. Participants were randomly assigned in a 1:1 ratio to receive naltrexone (50 mg/d) or placebo for 12 weeks. All participants attended regular counseling sessions with the resident psychiatrist. At baseline, the biochemical and drinking-related assessment scores between active and placebo groups of patients with compensated cirrhosis were matched.
Abstinence from alcohol was assessed through self-reported mean number of standard drinks (12 g alcohol per day). Findings were corroborated through an interview with a family member. Serum ethyl glucuronide levels were measured in cases of discrepancy. A relapse was considered to be consumption of over four standard alcoholic drinks/month; a lapse was considered any other alcohol drinking event not classified as relapse.
The primary outcome was the proportion of patients who achieved and maintained alcohol abstinence at 12 weeks; secondary outcomes were the proportion of patients who took naltrexone without a liver-related adverse effect compared with placebo at 12 weeks, the number of relapses and lapses, the difference in craving scores on the Obsessive Compulsive Drinking Scale (OCDS) between groups at 4, 8, and 12 weeks and at 6 months and 12 months, and the proportion of patients who achieved and maintained alcohol abstinence at 6 months.
Abstinence at 3 months
After 3 months, abstinence was noted in 64% of the study population who received naltrexone, compared to 22% of those who received placebo (P < .001). At 6 months, a higher proportion of patients in the naltrexone group achieved abstinence (22% vs. 8% with placebo; P = .09).
“We still need to look at the longer-term effects of naltrexone,” Dr. Alla said. “Here we gave the drug plus counseling for 3 months only, so despite encouraging findings, we need further studies to understand more.”
The researchers analyzed the predictors of abstinence at 3 months. They found that patients who consumed fewer than 17 drinks per month at baseline were more likely to achieve abstinence (sensitivity, 81%).
“Our study showed that patients who are consuming less alcohol at baseline can quit alcohol if adequately motivated. We need the motivation, as well as the drug,” she said.
Patient counseling was also very important and was provided for the 3 months of the study. “Even in the placebo arm, we had some patients who became abstinent [11/50 patients], but this dropped at 6 months [to 4/50],” Dr. Alla said.
At 12 weeks, 28% in the naltrexone group experienced relapse, vs. 72% in the placebo group (P < .001). Regarding the secondary outcome of craving scores and how they were affected by naltrexone, the mean OCDS-O (obsessive element) scores were 6.63, compared with 9.29 in naltrexone and placebo, respectively (P < .01). The mean OCDS-C (compulsive element) scores were 6.34 and 9.02, respectively (P < .01).
“Most important, was the safety of naltrexone in this study,” she said. There were no significant adverse events in either arm, and only one patient discontinued the drug in the naltrexone arm. Three patients in the naltrexone group who continued alcohol consumption developed jaundice, “so the jaundice can be attributed to continuous alcohol intake and may not be secondary to the naltrexone per se. We concluded that naltrexone is safe in a compensated cirrhotic patient,” Dr. Alla said.
Regarding other adverse events, 13.7% of patients experienced gastritis with naltrexone, vs. 3.7% among patients who received placebo. Nausea was more common in the placebo group, at 11.1% compared with 6.8% among patients who received naltrexone. Vomiting was more common in the naltrexone arm, at 10.3% vs. 7.4% with placebo. None of these differences reached statistical significance.
A longer-term study and comparisons to other drugs would provide valuable insights going forward.
Moderator Aleksander Krag, MD, professor and head of hepatology at the University of Southern Denmark and Odense University Hospital, Denmark, said: “Any intervention that can reduce or stop alcohol use in patients with cirrhosis and more advanced cirrhosis will improve outcome as well as reduce complications and mortality.
“In some cases, alcohol rehabilitation can completely revert the damaged liver. We have lots of data that show that continuous alcohol use at the more advanced stages can be devastating and reduction [in alcohol use] improves outcome. Therefore, any intervention that can help us to achieve this on behalf of all patients is most welcome,” he said.
Naltrexone (ADDTREX) and identical placebos were supplied by Rusan Pharma. Dr. Alla has disclosed no relevant financial relationships. Dr. Krag has served as speaker for Norgine, Siemens, and Nordic Bioscience and has participated in advisory boards for Norgine and Siemens outside the submitted work. He receives royalties from Gyldendal and Echosens.
A version of this article appeared on Medscape.com.
VIENNA – , results of the first randomized controlled trial (RCT) show.
After 3 months, 64% of patients who received naltrexone were abstinent from alcohol, compared with 22% of patients who received placebo, Manasa Alla, MD, a hepatologist from the Institute of Liver and Biliary Sciences (ILBS), New Delhi, said at the European Association for the Study of the Liver (EASL) 2023, where she presented the study findings.
Importantly, naltrexone was found to be safe for patients with compensated cirrhosis. “This fragile population of patients has limited drugs to help them quit alcohol. Naltrexone can be a valuable addition to their measures to reduce craving and on their journey to reach de-addiction and abstinence,” Dr. Alla said.
Hepatotoxicity with naltrexone is rare and data are limited. The Food and Drug Administration previously placed a warning on its use for patients with alcoholic liver disease and underlying cirrhosis.
As a clinician constantly challenged with treating patients with AUD and cirrhosis, Dr. Alla wanted to explore the safety of naltrexone and to test its suitability for these patients who struggle to quit alcohol.
“Here we aimed to primarily test the safety of naltrexone in achieving abstinence and reducing alcohol cravings in patients with alcohol-related cirrhosis,” she said, adding, “The FDA black box warning has been removed, but it has never been tested in an RCT in patients with cirrhosis, so this is exactly what we did here.
“Naltrexone is a very good anti-alcohol-craving drug. If we can establish its safety in cirrhotic patients, it may have very good potential in reducing AUD and reducing the related complications of continued alcohol intake,” Dr. Alla said.
Safety, abstinence, lapse, and relapse assessed
The prospective, double-blind, single-center study at the ILBS in New Delhi, enrolled 100 patients with alcohol dependence and cirrhosis between 2020 and 2022. Participants were randomly assigned in a 1:1 ratio to receive naltrexone (50 mg/d) or placebo for 12 weeks. All participants attended regular counseling sessions with the resident psychiatrist. At baseline, the biochemical and drinking-related assessment scores between active and placebo groups of patients with compensated cirrhosis were matched.
Abstinence from alcohol was assessed through self-reported mean number of standard drinks (12 g alcohol per day). Findings were corroborated through an interview with a family member. Serum ethyl glucuronide levels were measured in cases of discrepancy. A relapse was considered to be consumption of over four standard alcoholic drinks/month; a lapse was considered any other alcohol drinking event not classified as relapse.
The primary outcome was the proportion of patients who achieved and maintained alcohol abstinence at 12 weeks; secondary outcomes were the proportion of patients who took naltrexone without a liver-related adverse effect compared with placebo at 12 weeks, the number of relapses and lapses, the difference in craving scores on the Obsessive Compulsive Drinking Scale (OCDS) between groups at 4, 8, and 12 weeks and at 6 months and 12 months, and the proportion of patients who achieved and maintained alcohol abstinence at 6 months.
Abstinence at 3 months
After 3 months, abstinence was noted in 64% of the study population who received naltrexone, compared to 22% of those who received placebo (P < .001). At 6 months, a higher proportion of patients in the naltrexone group achieved abstinence (22% vs. 8% with placebo; P = .09).
“We still need to look at the longer-term effects of naltrexone,” Dr. Alla said. “Here we gave the drug plus counseling for 3 months only, so despite encouraging findings, we need further studies to understand more.”
The researchers analyzed the predictors of abstinence at 3 months. They found that patients who consumed fewer than 17 drinks per month at baseline were more likely to achieve abstinence (sensitivity, 81%).
“Our study showed that patients who are consuming less alcohol at baseline can quit alcohol if adequately motivated. We need the motivation, as well as the drug,” she said.
Patient counseling was also very important and was provided for the 3 months of the study. “Even in the placebo arm, we had some patients who became abstinent [11/50 patients], but this dropped at 6 months [to 4/50],” Dr. Alla said.
At 12 weeks, 28% in the naltrexone group experienced relapse, vs. 72% in the placebo group (P < .001). Regarding the secondary outcome of craving scores and how they were affected by naltrexone, the mean OCDS-O (obsessive element) scores were 6.63, compared with 9.29 in naltrexone and placebo, respectively (P < .01). The mean OCDS-C (compulsive element) scores were 6.34 and 9.02, respectively (P < .01).
“Most important, was the safety of naltrexone in this study,” she said. There were no significant adverse events in either arm, and only one patient discontinued the drug in the naltrexone arm. Three patients in the naltrexone group who continued alcohol consumption developed jaundice, “so the jaundice can be attributed to continuous alcohol intake and may not be secondary to the naltrexone per se. We concluded that naltrexone is safe in a compensated cirrhotic patient,” Dr. Alla said.
Regarding other adverse events, 13.7% of patients experienced gastritis with naltrexone, vs. 3.7% among patients who received placebo. Nausea was more common in the placebo group, at 11.1% compared with 6.8% among patients who received naltrexone. Vomiting was more common in the naltrexone arm, at 10.3% vs. 7.4% with placebo. None of these differences reached statistical significance.
A longer-term study and comparisons to other drugs would provide valuable insights going forward.
Moderator Aleksander Krag, MD, professor and head of hepatology at the University of Southern Denmark and Odense University Hospital, Denmark, said: “Any intervention that can reduce or stop alcohol use in patients with cirrhosis and more advanced cirrhosis will improve outcome as well as reduce complications and mortality.
“In some cases, alcohol rehabilitation can completely revert the damaged liver. We have lots of data that show that continuous alcohol use at the more advanced stages can be devastating and reduction [in alcohol use] improves outcome. Therefore, any intervention that can help us to achieve this on behalf of all patients is most welcome,” he said.
Naltrexone (ADDTREX) and identical placebos were supplied by Rusan Pharma. Dr. Alla has disclosed no relevant financial relationships. Dr. Krag has served as speaker for Norgine, Siemens, and Nordic Bioscience and has participated in advisory boards for Norgine and Siemens outside the submitted work. He receives royalties from Gyldendal and Echosens.
A version of this article appeared on Medscape.com.
VIENNA – , results of the first randomized controlled trial (RCT) show.
After 3 months, 64% of patients who received naltrexone were abstinent from alcohol, compared with 22% of patients who received placebo, Manasa Alla, MD, a hepatologist from the Institute of Liver and Biliary Sciences (ILBS), New Delhi, said at the European Association for the Study of the Liver (EASL) 2023, where she presented the study findings.
Importantly, naltrexone was found to be safe for patients with compensated cirrhosis. “This fragile population of patients has limited drugs to help them quit alcohol. Naltrexone can be a valuable addition to their measures to reduce craving and on their journey to reach de-addiction and abstinence,” Dr. Alla said.
Hepatotoxicity with naltrexone is rare and data are limited. The Food and Drug Administration previously placed a warning on its use for patients with alcoholic liver disease and underlying cirrhosis.
As a clinician constantly challenged with treating patients with AUD and cirrhosis, Dr. Alla wanted to explore the safety of naltrexone and to test its suitability for these patients who struggle to quit alcohol.
“Here we aimed to primarily test the safety of naltrexone in achieving abstinence and reducing alcohol cravings in patients with alcohol-related cirrhosis,” she said, adding, “The FDA black box warning has been removed, but it has never been tested in an RCT in patients with cirrhosis, so this is exactly what we did here.
“Naltrexone is a very good anti-alcohol-craving drug. If we can establish its safety in cirrhotic patients, it may have very good potential in reducing AUD and reducing the related complications of continued alcohol intake,” Dr. Alla said.
Safety, abstinence, lapse, and relapse assessed
The prospective, double-blind, single-center study at the ILBS in New Delhi, enrolled 100 patients with alcohol dependence and cirrhosis between 2020 and 2022. Participants were randomly assigned in a 1:1 ratio to receive naltrexone (50 mg/d) or placebo for 12 weeks. All participants attended regular counseling sessions with the resident psychiatrist. At baseline, the biochemical and drinking-related assessment scores between active and placebo groups of patients with compensated cirrhosis were matched.
Abstinence from alcohol was assessed through self-reported mean number of standard drinks (12 g alcohol per day). Findings were corroborated through an interview with a family member. Serum ethyl glucuronide levels were measured in cases of discrepancy. A relapse was considered to be consumption of over four standard alcoholic drinks/month; a lapse was considered any other alcohol drinking event not classified as relapse.
The primary outcome was the proportion of patients who achieved and maintained alcohol abstinence at 12 weeks; secondary outcomes were the proportion of patients who took naltrexone without a liver-related adverse effect compared with placebo at 12 weeks, the number of relapses and lapses, the difference in craving scores on the Obsessive Compulsive Drinking Scale (OCDS) between groups at 4, 8, and 12 weeks and at 6 months and 12 months, and the proportion of patients who achieved and maintained alcohol abstinence at 6 months.
Abstinence at 3 months
After 3 months, abstinence was noted in 64% of the study population who received naltrexone, compared to 22% of those who received placebo (P < .001). At 6 months, a higher proportion of patients in the naltrexone group achieved abstinence (22% vs. 8% with placebo; P = .09).
“We still need to look at the longer-term effects of naltrexone,” Dr. Alla said. “Here we gave the drug plus counseling for 3 months only, so despite encouraging findings, we need further studies to understand more.”
The researchers analyzed the predictors of abstinence at 3 months. They found that patients who consumed fewer than 17 drinks per month at baseline were more likely to achieve abstinence (sensitivity, 81%).
“Our study showed that patients who are consuming less alcohol at baseline can quit alcohol if adequately motivated. We need the motivation, as well as the drug,” she said.
Patient counseling was also very important and was provided for the 3 months of the study. “Even in the placebo arm, we had some patients who became abstinent [11/50 patients], but this dropped at 6 months [to 4/50],” Dr. Alla said.
At 12 weeks, 28% in the naltrexone group experienced relapse, vs. 72% in the placebo group (P < .001). Regarding the secondary outcome of craving scores and how they were affected by naltrexone, the mean OCDS-O (obsessive element) scores were 6.63, compared with 9.29 in naltrexone and placebo, respectively (P < .01). The mean OCDS-C (compulsive element) scores were 6.34 and 9.02, respectively (P < .01).
“Most important, was the safety of naltrexone in this study,” she said. There were no significant adverse events in either arm, and only one patient discontinued the drug in the naltrexone arm. Three patients in the naltrexone group who continued alcohol consumption developed jaundice, “so the jaundice can be attributed to continuous alcohol intake and may not be secondary to the naltrexone per se. We concluded that naltrexone is safe in a compensated cirrhotic patient,” Dr. Alla said.
Regarding other adverse events, 13.7% of patients experienced gastritis with naltrexone, vs. 3.7% among patients who received placebo. Nausea was more common in the placebo group, at 11.1% compared with 6.8% among patients who received naltrexone. Vomiting was more common in the naltrexone arm, at 10.3% vs. 7.4% with placebo. None of these differences reached statistical significance.
A longer-term study and comparisons to other drugs would provide valuable insights going forward.
Moderator Aleksander Krag, MD, professor and head of hepatology at the University of Southern Denmark and Odense University Hospital, Denmark, said: “Any intervention that can reduce or stop alcohol use in patients with cirrhosis and more advanced cirrhosis will improve outcome as well as reduce complications and mortality.
“In some cases, alcohol rehabilitation can completely revert the damaged liver. We have lots of data that show that continuous alcohol use at the more advanced stages can be devastating and reduction [in alcohol use] improves outcome. Therefore, any intervention that can help us to achieve this on behalf of all patients is most welcome,” he said.
Naltrexone (ADDTREX) and identical placebos were supplied by Rusan Pharma. Dr. Alla has disclosed no relevant financial relationships. Dr. Krag has served as speaker for Norgine, Siemens, and Nordic Bioscience and has participated in advisory boards for Norgine and Siemens outside the submitted work. He receives royalties from Gyldendal and Echosens.
A version of this article appeared on Medscape.com.
AT EASL CONGRESS 2023
Setmelanotide offers significant, long-lasting weight loss
MARSEILLE, FRANCE – , according to results presented at the latest French Pediatric Society conference. The treatment is effective for adults and children alike.
Setmelanotide is the culmination of two decades of research involving the identification of genes involved in early-onset obesity and the characterization of the melanocortin 4 receptor. It became available via early access in 2021.
Currently limited to use in treating obesity linked to a biallelic POMC/PCSK1 or LEPR deficiency, setmelanotide is being tested with respect to other mutations responsible for severe obesity, raising hopes that it will soon be indicated for use in a larger number of patients.
Fewer than 1% of patients who suffer from severe obesity have monogenic forms of obesity. In recent years, the hope for a targeted treatment for patients with these monogenic forms has become a reality.
Although only a small number of patients currently meet the criteria for setmelanotide treatment (namely, those with obesity linked to a biallelic POMC/PCSK1 enzyme or LEPR deficiency and patients with Bardet-Biedl syndrome), there is a real hope that patients with other forms of severe obesity will be able to benefit from this product, including those with heterozygous (not just homozygous) monoallelic variants, who account for more than 10% of patients with severe early-onset obesity.
Restoring satiety signaling
“Setmelanotide is a melanocortin 4 receptor agonist,” said Béatrice Dubern, MD, PhD, pediatrician at Trousseau Hospital, Paris, and member of the French medical research institute (INSERM)/Sorbonne University team on nutrition and obesity. “Its mode of action rests on activation of the leptin-melanocortin signaling pathway in the hypothalamus, which regulates hunger, satiety, energy expenditure, and, therefore, body weight. Rare genetic variants in the leptin-melanocortin pathway are associated with polyphagia and severe early-onset obesity. It is believed that more than 60 genes involved in this leptin-melanocortin pathway are currently associated with obesity.”
In July 2021, the European Medicines Agency approved setmelanotide for daily use via subcutaneous administration.
Weight loss maintained
In phase 3 studies, setmelanotide (melanocortin 4 receptor agonist) demonstrated its effectiveness in reducing weight and hunger for patients with obesity caused by a POMC/PCSK1 or LEPR deficiency.
Twenty-four patients aged 6 years and older showed a significant response to setmelanotide after 1 year of treatment and were included in the extension study. “Significant response” was defined as a reduction in body weight greater than or equal to 10% after 52 weeks for patients aged 18 years and older or a reduction in body mass index (BMI) z-score greater than or equal to 0.3 after 52 weeks for patients younger than 18 years.
Among all patients, the mean variation (standard deviation) in BMI was −24.8% (8.2%, n = 24), −21% (13%, n = 23), and −24% (17.9%, n = 15) at 12, 24, and 36 months, respectively.
For patients aged greater than or equal to 18 years (n = 11), the mean variation (standard deviation) in weight was −25.1% (7.7%, n = 11), −22.9% (12.5%, n = 11), and −24.4% (13.2%, n = 8) at 12, 24, and 36 months, respectively.
For children and adolescents (patients aged < 18 years, n = 13), the mean reduction (standard deviation) in BMI z-score was −1.31 ([0.66], n = 13), −1.10 ([0.79], n = 11), and −1.01 (1.22], n = 4) at 12, 24, and 36 months, respectively.
For patients younger than 18 years, the mean variation in BMI z-score was −1.01 SD after three years on setmelanotide (standard deviation, 1.22 [n = 4]). The mean BMI z-score was +2.42 SD (standard deviation, 1.22 [n = 4]) after 3 years of treatment with setmelanotide.
In sum, the patients who achieved a reduction in body weight of at least 10% or greater than or equal to 0.3 mean variation in BMI z-score after 1 year experienced long-lasting, clinically significant benefit after 3 years. The finding supports the long-term use of setmelanotide for this group.
“We feared that setmelanotide’s effectiveness would decrease over time, but after 3 years, this had not happened, and we are hopeful that this sustained efficacy will be long lasting. The first two patients who took the drug in 2016 have not noticed any loss of efficacy as it stands,” said Dr. Dubern.
This is all the more encouraging. In the study presented at the 2023 pediatric conference, setmelanotide’s safety profile was reassuring, and it was consistent with previous studies. Side effects reported in greater than or equal to 15% of patients include injection site reactions, skin hyperpigmentation, nausea, diarrhea, mood disturbances, abdominal pain, vomiting, gastroenteritis, and spontaneous erection.
In addition to the lack of control group, Dr. Dubern acknowledged one other constraint of this study. “Only the patients who responded to treatment with setmelanotide during early-phase trials (85.7%) were enrolled.”
Dr. Dubern summarized the clinical implications: “In patients with early-onset obesity, starting before 5 years of age, doctors should really be considering the possibility that genetics might be involved in such cases. For confirmation and to seek expert opinion, specialist obesity clinics can be found throughout France. Additionally, the INSERM NutriOmics research team headed by Prof Karine Clément, MD, PhD, Sorbonne University, in conjunction with Prof Christine Poitou, MD, PhD, has developed a diagnostic tool [called] ObsGen for practitioners faced with patients with potentially genetic causes of obesity. We can answer any questions they have about the likelihood of a particular patient having a genetic form of obesity and guide their next steps. Treating patients with genetic obesity early on helps limit the condition worsening during adolescence, prevents related complications, and can reduce the stigmatization and suffering experienced by these people. It’s a huge issue. A clinical trial with setmelanotide is currently being carried out in children over 2 years of age.”
Hypothalamic obesity
During the pediatric conference, another speaker presented the results of a phase 2 study that evaluated the efficacy and tolerability of setmelanotide as a new treatment for hypothalamic obesity. Lesions in the hypothalamus can alter melanocortin 4 receptor pathway signaling and thus lead to hypothalamic obesity. Eighteen patients aged 6-40 years with a BMI greater than or equal to the 95th percentile (for patients aged 6-18 years) or greater than or equal to 35 kg/m2 (for adults aged ≥ 18 years) and hypothalamic obesity (craniopharyngioma or other benign brain tumors, surgical removal, and/or chemotherapy) were enrolled. A significant proportion of patients achieved a reduction of greater than or equal to 5% of their BMI (n = 16, 88.9%, CI 90%, 69%-89%, P < .0001), and 72.2% achieved a reduction of greater than or equal to 10% by week 16. The mean change in BMI was −14.9% (9.6%, n = 17). These early results may justify further studies of setmelanotide in treating hypothalamic obesity.
Dr. Dubern has collaborated with Rhythm Pharmaceuticals and Novo Nordisk.
This article was translated from the Medscape French Edition and a version appeared on Medscape.com.
MARSEILLE, FRANCE – , according to results presented at the latest French Pediatric Society conference. The treatment is effective for adults and children alike.
Setmelanotide is the culmination of two decades of research involving the identification of genes involved in early-onset obesity and the characterization of the melanocortin 4 receptor. It became available via early access in 2021.
Currently limited to use in treating obesity linked to a biallelic POMC/PCSK1 or LEPR deficiency, setmelanotide is being tested with respect to other mutations responsible for severe obesity, raising hopes that it will soon be indicated for use in a larger number of patients.
Fewer than 1% of patients who suffer from severe obesity have monogenic forms of obesity. In recent years, the hope for a targeted treatment for patients with these monogenic forms has become a reality.
Although only a small number of patients currently meet the criteria for setmelanotide treatment (namely, those with obesity linked to a biallelic POMC/PCSK1 enzyme or LEPR deficiency and patients with Bardet-Biedl syndrome), there is a real hope that patients with other forms of severe obesity will be able to benefit from this product, including those with heterozygous (not just homozygous) monoallelic variants, who account for more than 10% of patients with severe early-onset obesity.
Restoring satiety signaling
“Setmelanotide is a melanocortin 4 receptor agonist,” said Béatrice Dubern, MD, PhD, pediatrician at Trousseau Hospital, Paris, and member of the French medical research institute (INSERM)/Sorbonne University team on nutrition and obesity. “Its mode of action rests on activation of the leptin-melanocortin signaling pathway in the hypothalamus, which regulates hunger, satiety, energy expenditure, and, therefore, body weight. Rare genetic variants in the leptin-melanocortin pathway are associated with polyphagia and severe early-onset obesity. It is believed that more than 60 genes involved in this leptin-melanocortin pathway are currently associated with obesity.”
In July 2021, the European Medicines Agency approved setmelanotide for daily use via subcutaneous administration.
Weight loss maintained
In phase 3 studies, setmelanotide (melanocortin 4 receptor agonist) demonstrated its effectiveness in reducing weight and hunger for patients with obesity caused by a POMC/PCSK1 or LEPR deficiency.
Twenty-four patients aged 6 years and older showed a significant response to setmelanotide after 1 year of treatment and were included in the extension study. “Significant response” was defined as a reduction in body weight greater than or equal to 10% after 52 weeks for patients aged 18 years and older or a reduction in body mass index (BMI) z-score greater than or equal to 0.3 after 52 weeks for patients younger than 18 years.
Among all patients, the mean variation (standard deviation) in BMI was −24.8% (8.2%, n = 24), −21% (13%, n = 23), and −24% (17.9%, n = 15) at 12, 24, and 36 months, respectively.
For patients aged greater than or equal to 18 years (n = 11), the mean variation (standard deviation) in weight was −25.1% (7.7%, n = 11), −22.9% (12.5%, n = 11), and −24.4% (13.2%, n = 8) at 12, 24, and 36 months, respectively.
For children and adolescents (patients aged < 18 years, n = 13), the mean reduction (standard deviation) in BMI z-score was −1.31 ([0.66], n = 13), −1.10 ([0.79], n = 11), and −1.01 (1.22], n = 4) at 12, 24, and 36 months, respectively.
For patients younger than 18 years, the mean variation in BMI z-score was −1.01 SD after three years on setmelanotide (standard deviation, 1.22 [n = 4]). The mean BMI z-score was +2.42 SD (standard deviation, 1.22 [n = 4]) after 3 years of treatment with setmelanotide.
In sum, the patients who achieved a reduction in body weight of at least 10% or greater than or equal to 0.3 mean variation in BMI z-score after 1 year experienced long-lasting, clinically significant benefit after 3 years. The finding supports the long-term use of setmelanotide for this group.
“We feared that setmelanotide’s effectiveness would decrease over time, but after 3 years, this had not happened, and we are hopeful that this sustained efficacy will be long lasting. The first two patients who took the drug in 2016 have not noticed any loss of efficacy as it stands,” said Dr. Dubern.
This is all the more encouraging. In the study presented at the 2023 pediatric conference, setmelanotide’s safety profile was reassuring, and it was consistent with previous studies. Side effects reported in greater than or equal to 15% of patients include injection site reactions, skin hyperpigmentation, nausea, diarrhea, mood disturbances, abdominal pain, vomiting, gastroenteritis, and spontaneous erection.
In addition to the lack of control group, Dr. Dubern acknowledged one other constraint of this study. “Only the patients who responded to treatment with setmelanotide during early-phase trials (85.7%) were enrolled.”
Dr. Dubern summarized the clinical implications: “In patients with early-onset obesity, starting before 5 years of age, doctors should really be considering the possibility that genetics might be involved in such cases. For confirmation and to seek expert opinion, specialist obesity clinics can be found throughout France. Additionally, the INSERM NutriOmics research team headed by Prof Karine Clément, MD, PhD, Sorbonne University, in conjunction with Prof Christine Poitou, MD, PhD, has developed a diagnostic tool [called] ObsGen for practitioners faced with patients with potentially genetic causes of obesity. We can answer any questions they have about the likelihood of a particular patient having a genetic form of obesity and guide their next steps. Treating patients with genetic obesity early on helps limit the condition worsening during adolescence, prevents related complications, and can reduce the stigmatization and suffering experienced by these people. It’s a huge issue. A clinical trial with setmelanotide is currently being carried out in children over 2 years of age.”
Hypothalamic obesity
During the pediatric conference, another speaker presented the results of a phase 2 study that evaluated the efficacy and tolerability of setmelanotide as a new treatment for hypothalamic obesity. Lesions in the hypothalamus can alter melanocortin 4 receptor pathway signaling and thus lead to hypothalamic obesity. Eighteen patients aged 6-40 years with a BMI greater than or equal to the 95th percentile (for patients aged 6-18 years) or greater than or equal to 35 kg/m2 (for adults aged ≥ 18 years) and hypothalamic obesity (craniopharyngioma or other benign brain tumors, surgical removal, and/or chemotherapy) were enrolled. A significant proportion of patients achieved a reduction of greater than or equal to 5% of their BMI (n = 16, 88.9%, CI 90%, 69%-89%, P < .0001), and 72.2% achieved a reduction of greater than or equal to 10% by week 16. The mean change in BMI was −14.9% (9.6%, n = 17). These early results may justify further studies of setmelanotide in treating hypothalamic obesity.
Dr. Dubern has collaborated with Rhythm Pharmaceuticals and Novo Nordisk.
This article was translated from the Medscape French Edition and a version appeared on Medscape.com.
MARSEILLE, FRANCE – , according to results presented at the latest French Pediatric Society conference. The treatment is effective for adults and children alike.
Setmelanotide is the culmination of two decades of research involving the identification of genes involved in early-onset obesity and the characterization of the melanocortin 4 receptor. It became available via early access in 2021.
Currently limited to use in treating obesity linked to a biallelic POMC/PCSK1 or LEPR deficiency, setmelanotide is being tested with respect to other mutations responsible for severe obesity, raising hopes that it will soon be indicated for use in a larger number of patients.
Fewer than 1% of patients who suffer from severe obesity have monogenic forms of obesity. In recent years, the hope for a targeted treatment for patients with these monogenic forms has become a reality.
Although only a small number of patients currently meet the criteria for setmelanotide treatment (namely, those with obesity linked to a biallelic POMC/PCSK1 enzyme or LEPR deficiency and patients with Bardet-Biedl syndrome), there is a real hope that patients with other forms of severe obesity will be able to benefit from this product, including those with heterozygous (not just homozygous) monoallelic variants, who account for more than 10% of patients with severe early-onset obesity.
Restoring satiety signaling
“Setmelanotide is a melanocortin 4 receptor agonist,” said Béatrice Dubern, MD, PhD, pediatrician at Trousseau Hospital, Paris, and member of the French medical research institute (INSERM)/Sorbonne University team on nutrition and obesity. “Its mode of action rests on activation of the leptin-melanocortin signaling pathway in the hypothalamus, which regulates hunger, satiety, energy expenditure, and, therefore, body weight. Rare genetic variants in the leptin-melanocortin pathway are associated with polyphagia and severe early-onset obesity. It is believed that more than 60 genes involved in this leptin-melanocortin pathway are currently associated with obesity.”
In July 2021, the European Medicines Agency approved setmelanotide for daily use via subcutaneous administration.
Weight loss maintained
In phase 3 studies, setmelanotide (melanocortin 4 receptor agonist) demonstrated its effectiveness in reducing weight and hunger for patients with obesity caused by a POMC/PCSK1 or LEPR deficiency.
Twenty-four patients aged 6 years and older showed a significant response to setmelanotide after 1 year of treatment and were included in the extension study. “Significant response” was defined as a reduction in body weight greater than or equal to 10% after 52 weeks for patients aged 18 years and older or a reduction in body mass index (BMI) z-score greater than or equal to 0.3 after 52 weeks for patients younger than 18 years.
Among all patients, the mean variation (standard deviation) in BMI was −24.8% (8.2%, n = 24), −21% (13%, n = 23), and −24% (17.9%, n = 15) at 12, 24, and 36 months, respectively.
For patients aged greater than or equal to 18 years (n = 11), the mean variation (standard deviation) in weight was −25.1% (7.7%, n = 11), −22.9% (12.5%, n = 11), and −24.4% (13.2%, n = 8) at 12, 24, and 36 months, respectively.
For children and adolescents (patients aged < 18 years, n = 13), the mean reduction (standard deviation) in BMI z-score was −1.31 ([0.66], n = 13), −1.10 ([0.79], n = 11), and −1.01 (1.22], n = 4) at 12, 24, and 36 months, respectively.
For patients younger than 18 years, the mean variation in BMI z-score was −1.01 SD after three years on setmelanotide (standard deviation, 1.22 [n = 4]). The mean BMI z-score was +2.42 SD (standard deviation, 1.22 [n = 4]) after 3 years of treatment with setmelanotide.
In sum, the patients who achieved a reduction in body weight of at least 10% or greater than or equal to 0.3 mean variation in BMI z-score after 1 year experienced long-lasting, clinically significant benefit after 3 years. The finding supports the long-term use of setmelanotide for this group.
“We feared that setmelanotide’s effectiveness would decrease over time, but after 3 years, this had not happened, and we are hopeful that this sustained efficacy will be long lasting. The first two patients who took the drug in 2016 have not noticed any loss of efficacy as it stands,” said Dr. Dubern.
This is all the more encouraging. In the study presented at the 2023 pediatric conference, setmelanotide’s safety profile was reassuring, and it was consistent with previous studies. Side effects reported in greater than or equal to 15% of patients include injection site reactions, skin hyperpigmentation, nausea, diarrhea, mood disturbances, abdominal pain, vomiting, gastroenteritis, and spontaneous erection.
In addition to the lack of control group, Dr. Dubern acknowledged one other constraint of this study. “Only the patients who responded to treatment with setmelanotide during early-phase trials (85.7%) were enrolled.”
Dr. Dubern summarized the clinical implications: “In patients with early-onset obesity, starting before 5 years of age, doctors should really be considering the possibility that genetics might be involved in such cases. For confirmation and to seek expert opinion, specialist obesity clinics can be found throughout France. Additionally, the INSERM NutriOmics research team headed by Prof Karine Clément, MD, PhD, Sorbonne University, in conjunction with Prof Christine Poitou, MD, PhD, has developed a diagnostic tool [called] ObsGen for practitioners faced with patients with potentially genetic causes of obesity. We can answer any questions they have about the likelihood of a particular patient having a genetic form of obesity and guide their next steps. Treating patients with genetic obesity early on helps limit the condition worsening during adolescence, prevents related complications, and can reduce the stigmatization and suffering experienced by these people. It’s a huge issue. A clinical trial with setmelanotide is currently being carried out in children over 2 years of age.”
Hypothalamic obesity
During the pediatric conference, another speaker presented the results of a phase 2 study that evaluated the efficacy and tolerability of setmelanotide as a new treatment for hypothalamic obesity. Lesions in the hypothalamus can alter melanocortin 4 receptor pathway signaling and thus lead to hypothalamic obesity. Eighteen patients aged 6-40 years with a BMI greater than or equal to the 95th percentile (for patients aged 6-18 years) or greater than or equal to 35 kg/m2 (for adults aged ≥ 18 years) and hypothalamic obesity (craniopharyngioma or other benign brain tumors, surgical removal, and/or chemotherapy) were enrolled. A significant proportion of patients achieved a reduction of greater than or equal to 5% of their BMI (n = 16, 88.9%, CI 90%, 69%-89%, P < .0001), and 72.2% achieved a reduction of greater than or equal to 10% by week 16. The mean change in BMI was −14.9% (9.6%, n = 17). These early results may justify further studies of setmelanotide in treating hypothalamic obesity.
Dr. Dubern has collaborated with Rhythm Pharmaceuticals and Novo Nordisk.
This article was translated from the Medscape French Edition and a version appeared on Medscape.com.
Gene therapy promising for reversal of hereditary vision loss
who received the therapy as part of an early access program.
Results of a study of more than 60 patients who received lenadogene nolparvovec (Lumevoq, GenSight Biologics) as a unilateral or bilateral intravitreal injection showed that at 2-year follow-up, 60% had experienced a clinically relevant improvement in the number of letters they could read on a visual acuity chart.
The results, said study presenter Chiara La Morgia, MD, PhD, IRCCS Istituto delle Scienze Neurologiche di Bologna (Italy), confirm in a “real-life setting” the efficacy and safety of the treatment as previously shown in clinical trials.
The findings were presented at the Congress of the European Academy of Neurology (EAN) 2023.
Severe disease
LHON is a maternally inherited genetic condition that leads to rapid loss of vision. It is caused by alterations in mitochondrial DNA that increase oxidative stress in retinal ganglion cells, leading to cell damage and death. The m.11778G>A MT-ND4 mutation (MT-ND4-LHON) is the most common and is seen in approximately 75% of LHON patients in Europe and North America.
It also leads to the most severe form of the disease, in which patients experience rapid, progressive, and painless bilateral loss of vision, either simultaneously or sequentially in both eyes. Within 1 year of onset, 97% of patients have bilateral involvement.
Lenadogene nolparvovec uses an adeno-associated virus vector to deliver the wild-type ND4 gene directly to the mitochondrial membrane of the retinal ganglion cells. This compensates for the mutation and leads to protein synthesis and restoration of energy production.
Dr. La Morgia said that, so far, five clinical studies are or have been conducted with the gene therapy with patients in France, Italy, the United Kingdom, and the United States.
In the current analysis, patients who received the therapy as part of an early access program underwent unilateral or bilateral intravitreal injection at a dose of 9x1010 viral genomes per eye. Efficacy and safety data, as well as patient baseline characteristics, were collected.
Between August 2018 and March 2022, 63 patients with MT-ND4-LHON received lenadogene nolparvovec. Individual-level data were pooled and analyzed. The mean age at first injection was 33.7 years; 90.5% of participants were aged 60 years or younger. The majority (77.8%) were male; just over half (55.6%) were from France, while 28.6% were from the United States.
The average disease duration at first injection was 11.3 years. Sixty-seven percent of patients were injected in both eyes, and 81.0% had previously received idebenone, a short-chain benzoquinone, the only treatment for LHON that has marketing authorization.
At 2-year follow-up, there was a marked improvement in best-corrected visual acuity (BCVA) scores. Moreover, among all 90 treated eyes for which data were available, the mean change in BCVA from nadir at 1 year was –0.45 log of the minimum angle of resolution (LogMAR), or +22.5 Early Treatment Diabetic Retinopathy Study (ETDRS) letters on a chart.
Among 58 bilaterally treated eyes, the mean improvement was –0.49 LogMAR, or +24.5 ETDRS letters, over the same period. In 32 unilaterally treated eyes, mean improvement was –0.39 LogMAR, or +19.5 ETDRS letters.
Overall, 64.4% of treated eyes showed an improvement from nadir of ≥ 0.3 LogMAR. A clinically relevant response, defined as an improvement of ≥ 10 ETDRS letters, was achieved by 60.0% of patients.
Regarding safety, Dr. La Morgia showed that 42.9% of eyes had at least one episode of intraocular inflammation, a rate she described as “quite high.” The episodes lasted for an average of 155.8 days.
“But all of this inflammation was very easily treatable in a majority of cases without using oral steroids,” she added, “just topical steroids.”
She also noted that in most cases, the inflammation was not severe.
Approval status
Session cochair Gianfranco De Stefano, MD, department of human neuroscience, Sapienza University of Rome, asked Dr. La Morgia about the current approval status of lenadogene nolparvovec.
She said that it was presented to the European Medicines Agency for approval, but the application was withdrawn earlier this year. The “main criticism” was that bilateral improvement was seen even in patients who received only a unilateral injection.
This is “not easily explainable,” said Dr. La Morgia, although it was found that the viral vector was present in the uninjected eye.
There was also a question regarding the heterogeneity of the patient data, which it is hoped will be addressed in future clinical trials.
Commenting after the session, De Stefano said in an interview that the results are “very interesting” and “very promising.”
He pointed out that idebenone may be the only currently available therapy for LHON, but it is “not very effective, and it’s something you give the patient just for the sake of doing something” in light of the possibility that he or she might have “even a small improvement” in eyesight.
However, he believes that lenadogene nolparvovec is a long way from becoming available in the clinic, primarily because longer follow-up is required to determine whether just one injection is enough.
“It may be likely that this gene therapy does not have a long-lasting effect,” he explained.
Currently, the longest follow-up is just 2 years; “I don’t know if there will be a need for repeat injection,” De Stefano said.
No funding was declared. Dr. La Morgia has relationships with Chiesi Farmaceutici, GenSight Biologics, Regulatory Pharma Net, Thenewway, Santhera Pharmaceuticals, First Class srl, Biologix, Stoke Therapeutics, and Reneo.
A version of this article first appeared on Medscape.com.
who received the therapy as part of an early access program.
Results of a study of more than 60 patients who received lenadogene nolparvovec (Lumevoq, GenSight Biologics) as a unilateral or bilateral intravitreal injection showed that at 2-year follow-up, 60% had experienced a clinically relevant improvement in the number of letters they could read on a visual acuity chart.
The results, said study presenter Chiara La Morgia, MD, PhD, IRCCS Istituto delle Scienze Neurologiche di Bologna (Italy), confirm in a “real-life setting” the efficacy and safety of the treatment as previously shown in clinical trials.
The findings were presented at the Congress of the European Academy of Neurology (EAN) 2023.
Severe disease
LHON is a maternally inherited genetic condition that leads to rapid loss of vision. It is caused by alterations in mitochondrial DNA that increase oxidative stress in retinal ganglion cells, leading to cell damage and death. The m.11778G>A MT-ND4 mutation (MT-ND4-LHON) is the most common and is seen in approximately 75% of LHON patients in Europe and North America.
It also leads to the most severe form of the disease, in which patients experience rapid, progressive, and painless bilateral loss of vision, either simultaneously or sequentially in both eyes. Within 1 year of onset, 97% of patients have bilateral involvement.
Lenadogene nolparvovec uses an adeno-associated virus vector to deliver the wild-type ND4 gene directly to the mitochondrial membrane of the retinal ganglion cells. This compensates for the mutation and leads to protein synthesis and restoration of energy production.
Dr. La Morgia said that, so far, five clinical studies are or have been conducted with the gene therapy with patients in France, Italy, the United Kingdom, and the United States.
In the current analysis, patients who received the therapy as part of an early access program underwent unilateral or bilateral intravitreal injection at a dose of 9x1010 viral genomes per eye. Efficacy and safety data, as well as patient baseline characteristics, were collected.
Between August 2018 and March 2022, 63 patients with MT-ND4-LHON received lenadogene nolparvovec. Individual-level data were pooled and analyzed. The mean age at first injection was 33.7 years; 90.5% of participants were aged 60 years or younger. The majority (77.8%) were male; just over half (55.6%) were from France, while 28.6% were from the United States.
The average disease duration at first injection was 11.3 years. Sixty-seven percent of patients were injected in both eyes, and 81.0% had previously received idebenone, a short-chain benzoquinone, the only treatment for LHON that has marketing authorization.
At 2-year follow-up, there was a marked improvement in best-corrected visual acuity (BCVA) scores. Moreover, among all 90 treated eyes for which data were available, the mean change in BCVA from nadir at 1 year was –0.45 log of the minimum angle of resolution (LogMAR), or +22.5 Early Treatment Diabetic Retinopathy Study (ETDRS) letters on a chart.
Among 58 bilaterally treated eyes, the mean improvement was –0.49 LogMAR, or +24.5 ETDRS letters, over the same period. In 32 unilaterally treated eyes, mean improvement was –0.39 LogMAR, or +19.5 ETDRS letters.
Overall, 64.4% of treated eyes showed an improvement from nadir of ≥ 0.3 LogMAR. A clinically relevant response, defined as an improvement of ≥ 10 ETDRS letters, was achieved by 60.0% of patients.
Regarding safety, Dr. La Morgia showed that 42.9% of eyes had at least one episode of intraocular inflammation, a rate she described as “quite high.” The episodes lasted for an average of 155.8 days.
“But all of this inflammation was very easily treatable in a majority of cases without using oral steroids,” she added, “just topical steroids.”
She also noted that in most cases, the inflammation was not severe.
Approval status
Session cochair Gianfranco De Stefano, MD, department of human neuroscience, Sapienza University of Rome, asked Dr. La Morgia about the current approval status of lenadogene nolparvovec.
She said that it was presented to the European Medicines Agency for approval, but the application was withdrawn earlier this year. The “main criticism” was that bilateral improvement was seen even in patients who received only a unilateral injection.
This is “not easily explainable,” said Dr. La Morgia, although it was found that the viral vector was present in the uninjected eye.
There was also a question regarding the heterogeneity of the patient data, which it is hoped will be addressed in future clinical trials.
Commenting after the session, De Stefano said in an interview that the results are “very interesting” and “very promising.”
He pointed out that idebenone may be the only currently available therapy for LHON, but it is “not very effective, and it’s something you give the patient just for the sake of doing something” in light of the possibility that he or she might have “even a small improvement” in eyesight.
However, he believes that lenadogene nolparvovec is a long way from becoming available in the clinic, primarily because longer follow-up is required to determine whether just one injection is enough.
“It may be likely that this gene therapy does not have a long-lasting effect,” he explained.
Currently, the longest follow-up is just 2 years; “I don’t know if there will be a need for repeat injection,” De Stefano said.
No funding was declared. Dr. La Morgia has relationships with Chiesi Farmaceutici, GenSight Biologics, Regulatory Pharma Net, Thenewway, Santhera Pharmaceuticals, First Class srl, Biologix, Stoke Therapeutics, and Reneo.
A version of this article first appeared on Medscape.com.
who received the therapy as part of an early access program.
Results of a study of more than 60 patients who received lenadogene nolparvovec (Lumevoq, GenSight Biologics) as a unilateral or bilateral intravitreal injection showed that at 2-year follow-up, 60% had experienced a clinically relevant improvement in the number of letters they could read on a visual acuity chart.
The results, said study presenter Chiara La Morgia, MD, PhD, IRCCS Istituto delle Scienze Neurologiche di Bologna (Italy), confirm in a “real-life setting” the efficacy and safety of the treatment as previously shown in clinical trials.
The findings were presented at the Congress of the European Academy of Neurology (EAN) 2023.
Severe disease
LHON is a maternally inherited genetic condition that leads to rapid loss of vision. It is caused by alterations in mitochondrial DNA that increase oxidative stress in retinal ganglion cells, leading to cell damage and death. The m.11778G>A MT-ND4 mutation (MT-ND4-LHON) is the most common and is seen in approximately 75% of LHON patients in Europe and North America.
It also leads to the most severe form of the disease, in which patients experience rapid, progressive, and painless bilateral loss of vision, either simultaneously or sequentially in both eyes. Within 1 year of onset, 97% of patients have bilateral involvement.
Lenadogene nolparvovec uses an adeno-associated virus vector to deliver the wild-type ND4 gene directly to the mitochondrial membrane of the retinal ganglion cells. This compensates for the mutation and leads to protein synthesis and restoration of energy production.
Dr. La Morgia said that, so far, five clinical studies are or have been conducted with the gene therapy with patients in France, Italy, the United Kingdom, and the United States.
In the current analysis, patients who received the therapy as part of an early access program underwent unilateral or bilateral intravitreal injection at a dose of 9x1010 viral genomes per eye. Efficacy and safety data, as well as patient baseline characteristics, were collected.
Between August 2018 and March 2022, 63 patients with MT-ND4-LHON received lenadogene nolparvovec. Individual-level data were pooled and analyzed. The mean age at first injection was 33.7 years; 90.5% of participants were aged 60 years or younger. The majority (77.8%) were male; just over half (55.6%) were from France, while 28.6% were from the United States.
The average disease duration at first injection was 11.3 years. Sixty-seven percent of patients were injected in both eyes, and 81.0% had previously received idebenone, a short-chain benzoquinone, the only treatment for LHON that has marketing authorization.
At 2-year follow-up, there was a marked improvement in best-corrected visual acuity (BCVA) scores. Moreover, among all 90 treated eyes for which data were available, the mean change in BCVA from nadir at 1 year was –0.45 log of the minimum angle of resolution (LogMAR), or +22.5 Early Treatment Diabetic Retinopathy Study (ETDRS) letters on a chart.
Among 58 bilaterally treated eyes, the mean improvement was –0.49 LogMAR, or +24.5 ETDRS letters, over the same period. In 32 unilaterally treated eyes, mean improvement was –0.39 LogMAR, or +19.5 ETDRS letters.
Overall, 64.4% of treated eyes showed an improvement from nadir of ≥ 0.3 LogMAR. A clinically relevant response, defined as an improvement of ≥ 10 ETDRS letters, was achieved by 60.0% of patients.
Regarding safety, Dr. La Morgia showed that 42.9% of eyes had at least one episode of intraocular inflammation, a rate she described as “quite high.” The episodes lasted for an average of 155.8 days.
“But all of this inflammation was very easily treatable in a majority of cases without using oral steroids,” she added, “just topical steroids.”
She also noted that in most cases, the inflammation was not severe.
Approval status
Session cochair Gianfranco De Stefano, MD, department of human neuroscience, Sapienza University of Rome, asked Dr. La Morgia about the current approval status of lenadogene nolparvovec.
She said that it was presented to the European Medicines Agency for approval, but the application was withdrawn earlier this year. The “main criticism” was that bilateral improvement was seen even in patients who received only a unilateral injection.
This is “not easily explainable,” said Dr. La Morgia, although it was found that the viral vector was present in the uninjected eye.
There was also a question regarding the heterogeneity of the patient data, which it is hoped will be addressed in future clinical trials.
Commenting after the session, De Stefano said in an interview that the results are “very interesting” and “very promising.”
He pointed out that idebenone may be the only currently available therapy for LHON, but it is “not very effective, and it’s something you give the patient just for the sake of doing something” in light of the possibility that he or she might have “even a small improvement” in eyesight.
However, he believes that lenadogene nolparvovec is a long way from becoming available in the clinic, primarily because longer follow-up is required to determine whether just one injection is enough.
“It may be likely that this gene therapy does not have a long-lasting effect,” he explained.
Currently, the longest follow-up is just 2 years; “I don’t know if there will be a need for repeat injection,” De Stefano said.
No funding was declared. Dr. La Morgia has relationships with Chiesi Farmaceutici, GenSight Biologics, Regulatory Pharma Net, Thenewway, Santhera Pharmaceuticals, First Class srl, Biologix, Stoke Therapeutics, and Reneo.
A version of this article first appeared on Medscape.com.
FROM EAN 2023
Debate: Initial combination therapy for type 2 diabetes?
SAN DIEGO –
This question was debated by two well-known clinician-researchers in the diabetes world at the recent annual scientific sessions of the American Diabetes Association.
Ralph A. DeFronzo, MD, argued for combination therapy at the time of diagnosis, and David M. Nathan, MD, countered that sequential therapy is a better way to go.
‘The ominous octet’: Addressing multiple underlying defects
Of course, Dr. DeFronzo said, the right agents must be selected. “The drugs we’re going to use as combination at a minimum have to correct the underlying insulin resistance and beta-cell failure, or we are not going to be successful.”
In addition, he said, these drugs should also provide protection against cardiovascular, kidney, and fatty liver disease, because “[managing] diabetes is more than just controlling the glucose.”
Recent U.S. data suggest that half of people with diabetes have a hemoglobin A1c above 7%, and a quarter remain above 8%. “We’re not really doing a very good job in terms of glycemic control,” said Dr. DeFronzo, chief of the diabetes division at University of Texas, San Antonio.
One reason for this failure, he said, is the complex pathophysiology of type 2 diabetes represented by eight major defects, what he called the “ominous octet”: decreased pancreatic insulin secretion, gut incretin effects, glucose uptake in the muscle, increased lipolysis, glucose reabsorption in the kidney, hepatic glucose production, increased glucagon secretion, and neurotransmitter dysfunction.
“There are eight problems, so you’re going to need multiple drugs in combination ... not ones that just lower the A1c.”
And, Dr. DeFronzo said, these drugs “must be started early in the natural history of type 2 diabetes if progressive beta-cell failure is to be prevented.”
He pointed to the United Kingdom Prospective Diabetes Study (UKPDS), in which the sulfonylurea glyburide was used first, followed by metformin. With each drug, the A1c decreased initially but then rose within 3 years. By 15 years, 65% of participants were taking insulin.
More recently, the GRADE study examined the effects of adding four different glucose-lowering agents (glimepiride, sitagliptin, liraglutide, or insulin glargine) in people who hadn’t achieved target A1c with metformin.
“So, by definition, drug number one failed,” he observed.
During the study, all participants showed an initial A1c drop, followed by progressive failure, “again ... showing that stepwise therapy doesn’t work.”
All patients with type 2 diabetes at his center are treated using the “DeFronzo algorithm” consisting of three drug classes: a glucagon-like peptide-1 (GLP-1) agonist, a sodium-glucose cotransporter-2 (SGLT2) inhibitor, and pioglitazone, as each of them targets more than one of the “ominous octet” defects.
“The drugs that clearly do not work on a long-term basis are metformin and sulfonylureas,” he emphasized.
Several studies demonstrate the efficacy of combination therapy, he said. In one, DURATION 8, the combination of exenatide and dapagliflozin was superior to either agent individually in lowering A1c, cardiovascular events, and all-cause mortality over 2 years.
And in the 5-year VERIFY study, early combination therapy with vildagliptin plus metformin proved superior in A1c-lowering to starting patients on metformin and adding vildagliptin later.
Dr. DeFronzo’s own “knock-out punch” study, EDICT, in people with new-onset type 2 diabetes, compared the initial combination of metformin, pioglitazone, and exenatide with conventional sequential add-on therapy with metformin, glipizide, and insulin glargine.
The primary endpoint – the difference in the proportion of patients with A1c less than 6.5% – was 70% versus 29% with combination compared with sequential therapy, a difference “as robust as you can be going against the stepwise approach” at P < .00001, he said.
The combination therapy virtually normalized both insulin sensitivity and beta-cell function, whereas the conventional therapy did neither.
Also from Dr. DeFronzo’s group, in the Qatar study, which compared exenatide plus pioglitazone with basal-bolus insulin in people with about 10 years’ duration of type 2 diabetes and A1c above 7.5% taking sulfonylurea plus metformin, the combination therapy produced an A1c of 6.2% versus 7.1% with insulin.
Dr. DeFronzo pointed to new language added to the ADA Standards of Medical Care in Diabetes in 2022.
While still endorsing stepwise therapy, the document also says that “there are data to support initial combination therapy for more rapid attainment of glycemic targets and longer durability of glycemic effect.” The two references cited are EDICT and VERIFY.
“Finally, the American Diabetes Association has gotten the message,” he concluded.
Sequential therapy: Far more data, lower cost
Dr. Nathan began by pointing out that the ADA Standards of Care continue to advise use of metformin as first-line therapy for type 2 diabetes “because of its high efficacy in lowering A1c, minimal hypoglycemia risk when used as monotherapy, weight neutrality with the potential for modest weight loss, good safety profile, and low cost.”
He emphasized that he was not arguing “against the use of early or even initial combination therapy when there are co-existent morbidities [such as cardiovascular or chronic kidney disease] that merit use of demonstrably effective medications.” But Dr. Nathan pointed out, those patients are not the majority with type 2 diabetes.
He laid out four main arguments for choosing traditional sequential therapy over initial combination therapy. For one, it “enables determination of efficacy of adding individual medications, while initial combination precludes determining benefits of individual drugs.”
Second, traditional sequential therapy allows for assessment of side effects from individual drugs.
“With Dr. DeFronzo’s algorithm you throw everything at them, and if they get nausea, vomiting, or diarrhea, you won’t know which drug it is ... If they get an allergic reaction, you won’t know which medication it is,” observed Dr. Nathan, who is director of the clinical research center and the diabetes center at Massachusetts General Hospital, Boston.
Moreover, he said, traditional sequential therapy “promotes individualization, with selection of drugs, which is something we’re laboring to achieve. Initial combination obviously limits that.”
Further, sequential therapy is “parsimonious and cost-effective, whereas initial combination therapy is expensive, with modest advantages at most.”
And, there are “lots of data” supporting traditional sequential therapy and relatively little for initial combination therapy.
Dr. Nathan added that when he searched the literature for relevant randomized clinical trials, he found 16 investigating initial combination therapy versus monotherapy, but only three that examined combination versus sequential therapy.
“Very few of them, except for EDICT and VERIFY, actually include the sequential therapy that we would use in practice,” he said.
Moreover, he observed, except for the VERIFY study, most are less than half a year in duration. And in VERIFY, there was an initial 20% difference in the proportions of patients with A1c below 7.0%, but by 12 months, that difference had shrunk to just 5%-6%.
“So, looking over time is very important,” Dr. Nathan cautioned. “We really have to be careful ... Six months is barely enough time to see A1c equilibrate ... You really need to study a long-term, chronic, progressive disease like type 2 diabetes over a long enough period of time to be clinically meaningful.”
Dr. Nathan acknowledged to Dr. DeFronzo that the latter’s EDICT study was “well conducted” and “long enough,” and that the researchers did examine monotherapy versus sequential therapy. However, he pointed out that it was a small study with 249 patients and the dropout rate was high, with 58% of patients remaining in the study with triple therapy versus 68% for conventional treatment. “That’s a bit problematic,” Dr. Nathan noted.
At 2 years, the “trivial” difference in A1c was 6.5% with conventional therapy versus 6.0% with triple therapy. “This is all on the very flat complications curve with regard to A1c,” he observed.
Patients treated with sequential therapy with sulfonylurea and insulin had higher rates of hypoglycemia and weight gain, whereas the combination triple therapy group had more gastrointestinal side effects and edema.
However, the most dramatic difference was cost: the average wholesale price for sequential therapy totaled about $85 per month, compared with $1,310 for initial combination therapy. For the approximately 1.5 million patients with new-onset type 2 diabetes in the United States, that difference comes to an additional cost per year of about $22 billion, Dr. Nathan calculated.
“Although current sequential therapy leaves much to be desired ... initial combination therapy has generally only been tested for brief, clinically insufficient periods.
“And therefore, I think sequential therapy is still what is called for,” he concluded. “Well-powered, acceptable-duration studies need to be performed before we can adopt initial/early combination therapy as the standard of care.”
Dr. DeFronzo has reported receiving research support from Boehringer Ingelheim, AstraZeneca, and Merck; payment or honoraria for lectures, presentations, speakers bureaus, manuscript writing, or educational events from AstraZeneca; and participation on a data safety monitoring board or advisory board for AstraZeneca, Intarcia, Novo Nordisk, and Boehringer Ingelheim. Dr. Nathan has reported no relevant financial relationships.
A version of this article appeared on Medscape.com.
SAN DIEGO –
This question was debated by two well-known clinician-researchers in the diabetes world at the recent annual scientific sessions of the American Diabetes Association.
Ralph A. DeFronzo, MD, argued for combination therapy at the time of diagnosis, and David M. Nathan, MD, countered that sequential therapy is a better way to go.
‘The ominous octet’: Addressing multiple underlying defects
Of course, Dr. DeFronzo said, the right agents must be selected. “The drugs we’re going to use as combination at a minimum have to correct the underlying insulin resistance and beta-cell failure, or we are not going to be successful.”
In addition, he said, these drugs should also provide protection against cardiovascular, kidney, and fatty liver disease, because “[managing] diabetes is more than just controlling the glucose.”
Recent U.S. data suggest that half of people with diabetes have a hemoglobin A1c above 7%, and a quarter remain above 8%. “We’re not really doing a very good job in terms of glycemic control,” said Dr. DeFronzo, chief of the diabetes division at University of Texas, San Antonio.
One reason for this failure, he said, is the complex pathophysiology of type 2 diabetes represented by eight major defects, what he called the “ominous octet”: decreased pancreatic insulin secretion, gut incretin effects, glucose uptake in the muscle, increased lipolysis, glucose reabsorption in the kidney, hepatic glucose production, increased glucagon secretion, and neurotransmitter dysfunction.
“There are eight problems, so you’re going to need multiple drugs in combination ... not ones that just lower the A1c.”
And, Dr. DeFronzo said, these drugs “must be started early in the natural history of type 2 diabetes if progressive beta-cell failure is to be prevented.”
He pointed to the United Kingdom Prospective Diabetes Study (UKPDS), in which the sulfonylurea glyburide was used first, followed by metformin. With each drug, the A1c decreased initially but then rose within 3 years. By 15 years, 65% of participants were taking insulin.
More recently, the GRADE study examined the effects of adding four different glucose-lowering agents (glimepiride, sitagliptin, liraglutide, or insulin glargine) in people who hadn’t achieved target A1c with metformin.
“So, by definition, drug number one failed,” he observed.
During the study, all participants showed an initial A1c drop, followed by progressive failure, “again ... showing that stepwise therapy doesn’t work.”
All patients with type 2 diabetes at his center are treated using the “DeFronzo algorithm” consisting of three drug classes: a glucagon-like peptide-1 (GLP-1) agonist, a sodium-glucose cotransporter-2 (SGLT2) inhibitor, and pioglitazone, as each of them targets more than one of the “ominous octet” defects.
“The drugs that clearly do not work on a long-term basis are metformin and sulfonylureas,” he emphasized.
Several studies demonstrate the efficacy of combination therapy, he said. In one, DURATION 8, the combination of exenatide and dapagliflozin was superior to either agent individually in lowering A1c, cardiovascular events, and all-cause mortality over 2 years.
And in the 5-year VERIFY study, early combination therapy with vildagliptin plus metformin proved superior in A1c-lowering to starting patients on metformin and adding vildagliptin later.
Dr. DeFronzo’s own “knock-out punch” study, EDICT, in people with new-onset type 2 diabetes, compared the initial combination of metformin, pioglitazone, and exenatide with conventional sequential add-on therapy with metformin, glipizide, and insulin glargine.
The primary endpoint – the difference in the proportion of patients with A1c less than 6.5% – was 70% versus 29% with combination compared with sequential therapy, a difference “as robust as you can be going against the stepwise approach” at P < .00001, he said.
The combination therapy virtually normalized both insulin sensitivity and beta-cell function, whereas the conventional therapy did neither.
Also from Dr. DeFronzo’s group, in the Qatar study, which compared exenatide plus pioglitazone with basal-bolus insulin in people with about 10 years’ duration of type 2 diabetes and A1c above 7.5% taking sulfonylurea plus metformin, the combination therapy produced an A1c of 6.2% versus 7.1% with insulin.
Dr. DeFronzo pointed to new language added to the ADA Standards of Medical Care in Diabetes in 2022.
While still endorsing stepwise therapy, the document also says that “there are data to support initial combination therapy for more rapid attainment of glycemic targets and longer durability of glycemic effect.” The two references cited are EDICT and VERIFY.
“Finally, the American Diabetes Association has gotten the message,” he concluded.
Sequential therapy: Far more data, lower cost
Dr. Nathan began by pointing out that the ADA Standards of Care continue to advise use of metformin as first-line therapy for type 2 diabetes “because of its high efficacy in lowering A1c, minimal hypoglycemia risk when used as monotherapy, weight neutrality with the potential for modest weight loss, good safety profile, and low cost.”
He emphasized that he was not arguing “against the use of early or even initial combination therapy when there are co-existent morbidities [such as cardiovascular or chronic kidney disease] that merit use of demonstrably effective medications.” But Dr. Nathan pointed out, those patients are not the majority with type 2 diabetes.
He laid out four main arguments for choosing traditional sequential therapy over initial combination therapy. For one, it “enables determination of efficacy of adding individual medications, while initial combination precludes determining benefits of individual drugs.”
Second, traditional sequential therapy allows for assessment of side effects from individual drugs.
“With Dr. DeFronzo’s algorithm you throw everything at them, and if they get nausea, vomiting, or diarrhea, you won’t know which drug it is ... If they get an allergic reaction, you won’t know which medication it is,” observed Dr. Nathan, who is director of the clinical research center and the diabetes center at Massachusetts General Hospital, Boston.
Moreover, he said, traditional sequential therapy “promotes individualization, with selection of drugs, which is something we’re laboring to achieve. Initial combination obviously limits that.”
Further, sequential therapy is “parsimonious and cost-effective, whereas initial combination therapy is expensive, with modest advantages at most.”
And, there are “lots of data” supporting traditional sequential therapy and relatively little for initial combination therapy.
Dr. Nathan added that when he searched the literature for relevant randomized clinical trials, he found 16 investigating initial combination therapy versus monotherapy, but only three that examined combination versus sequential therapy.
“Very few of them, except for EDICT and VERIFY, actually include the sequential therapy that we would use in practice,” he said.
Moreover, he observed, except for the VERIFY study, most are less than half a year in duration. And in VERIFY, there was an initial 20% difference in the proportions of patients with A1c below 7.0%, but by 12 months, that difference had shrunk to just 5%-6%.
“So, looking over time is very important,” Dr. Nathan cautioned. “We really have to be careful ... Six months is barely enough time to see A1c equilibrate ... You really need to study a long-term, chronic, progressive disease like type 2 diabetes over a long enough period of time to be clinically meaningful.”
Dr. Nathan acknowledged to Dr. DeFronzo that the latter’s EDICT study was “well conducted” and “long enough,” and that the researchers did examine monotherapy versus sequential therapy. However, he pointed out that it was a small study with 249 patients and the dropout rate was high, with 58% of patients remaining in the study with triple therapy versus 68% for conventional treatment. “That’s a bit problematic,” Dr. Nathan noted.
At 2 years, the “trivial” difference in A1c was 6.5% with conventional therapy versus 6.0% with triple therapy. “This is all on the very flat complications curve with regard to A1c,” he observed.
Patients treated with sequential therapy with sulfonylurea and insulin had higher rates of hypoglycemia and weight gain, whereas the combination triple therapy group had more gastrointestinal side effects and edema.
However, the most dramatic difference was cost: the average wholesale price for sequential therapy totaled about $85 per month, compared with $1,310 for initial combination therapy. For the approximately 1.5 million patients with new-onset type 2 diabetes in the United States, that difference comes to an additional cost per year of about $22 billion, Dr. Nathan calculated.
“Although current sequential therapy leaves much to be desired ... initial combination therapy has generally only been tested for brief, clinically insufficient periods.
“And therefore, I think sequential therapy is still what is called for,” he concluded. “Well-powered, acceptable-duration studies need to be performed before we can adopt initial/early combination therapy as the standard of care.”
Dr. DeFronzo has reported receiving research support from Boehringer Ingelheim, AstraZeneca, and Merck; payment or honoraria for lectures, presentations, speakers bureaus, manuscript writing, or educational events from AstraZeneca; and participation on a data safety monitoring board or advisory board for AstraZeneca, Intarcia, Novo Nordisk, and Boehringer Ingelheim. Dr. Nathan has reported no relevant financial relationships.
A version of this article appeared on Medscape.com.
SAN DIEGO –
This question was debated by two well-known clinician-researchers in the diabetes world at the recent annual scientific sessions of the American Diabetes Association.
Ralph A. DeFronzo, MD, argued for combination therapy at the time of diagnosis, and David M. Nathan, MD, countered that sequential therapy is a better way to go.
‘The ominous octet’: Addressing multiple underlying defects
Of course, Dr. DeFronzo said, the right agents must be selected. “The drugs we’re going to use as combination at a minimum have to correct the underlying insulin resistance and beta-cell failure, or we are not going to be successful.”
In addition, he said, these drugs should also provide protection against cardiovascular, kidney, and fatty liver disease, because “[managing] diabetes is more than just controlling the glucose.”
Recent U.S. data suggest that half of people with diabetes have a hemoglobin A1c above 7%, and a quarter remain above 8%. “We’re not really doing a very good job in terms of glycemic control,” said Dr. DeFronzo, chief of the diabetes division at University of Texas, San Antonio.
One reason for this failure, he said, is the complex pathophysiology of type 2 diabetes represented by eight major defects, what he called the “ominous octet”: decreased pancreatic insulin secretion, gut incretin effects, glucose uptake in the muscle, increased lipolysis, glucose reabsorption in the kidney, hepatic glucose production, increased glucagon secretion, and neurotransmitter dysfunction.
“There are eight problems, so you’re going to need multiple drugs in combination ... not ones that just lower the A1c.”
And, Dr. DeFronzo said, these drugs “must be started early in the natural history of type 2 diabetes if progressive beta-cell failure is to be prevented.”
He pointed to the United Kingdom Prospective Diabetes Study (UKPDS), in which the sulfonylurea glyburide was used first, followed by metformin. With each drug, the A1c decreased initially but then rose within 3 years. By 15 years, 65% of participants were taking insulin.
More recently, the GRADE study examined the effects of adding four different glucose-lowering agents (glimepiride, sitagliptin, liraglutide, or insulin glargine) in people who hadn’t achieved target A1c with metformin.
“So, by definition, drug number one failed,” he observed.
During the study, all participants showed an initial A1c drop, followed by progressive failure, “again ... showing that stepwise therapy doesn’t work.”
All patients with type 2 diabetes at his center are treated using the “DeFronzo algorithm” consisting of three drug classes: a glucagon-like peptide-1 (GLP-1) agonist, a sodium-glucose cotransporter-2 (SGLT2) inhibitor, and pioglitazone, as each of them targets more than one of the “ominous octet” defects.
“The drugs that clearly do not work on a long-term basis are metformin and sulfonylureas,” he emphasized.
Several studies demonstrate the efficacy of combination therapy, he said. In one, DURATION 8, the combination of exenatide and dapagliflozin was superior to either agent individually in lowering A1c, cardiovascular events, and all-cause mortality over 2 years.
And in the 5-year VERIFY study, early combination therapy with vildagliptin plus metformin proved superior in A1c-lowering to starting patients on metformin and adding vildagliptin later.
Dr. DeFronzo’s own “knock-out punch” study, EDICT, in people with new-onset type 2 diabetes, compared the initial combination of metformin, pioglitazone, and exenatide with conventional sequential add-on therapy with metformin, glipizide, and insulin glargine.
The primary endpoint – the difference in the proportion of patients with A1c less than 6.5% – was 70% versus 29% with combination compared with sequential therapy, a difference “as robust as you can be going against the stepwise approach” at P < .00001, he said.
The combination therapy virtually normalized both insulin sensitivity and beta-cell function, whereas the conventional therapy did neither.
Also from Dr. DeFronzo’s group, in the Qatar study, which compared exenatide plus pioglitazone with basal-bolus insulin in people with about 10 years’ duration of type 2 diabetes and A1c above 7.5% taking sulfonylurea plus metformin, the combination therapy produced an A1c of 6.2% versus 7.1% with insulin.
Dr. DeFronzo pointed to new language added to the ADA Standards of Medical Care in Diabetes in 2022.
While still endorsing stepwise therapy, the document also says that “there are data to support initial combination therapy for more rapid attainment of glycemic targets and longer durability of glycemic effect.” The two references cited are EDICT and VERIFY.
“Finally, the American Diabetes Association has gotten the message,” he concluded.
Sequential therapy: Far more data, lower cost
Dr. Nathan began by pointing out that the ADA Standards of Care continue to advise use of metformin as first-line therapy for type 2 diabetes “because of its high efficacy in lowering A1c, minimal hypoglycemia risk when used as monotherapy, weight neutrality with the potential for modest weight loss, good safety profile, and low cost.”
He emphasized that he was not arguing “against the use of early or even initial combination therapy when there are co-existent morbidities [such as cardiovascular or chronic kidney disease] that merit use of demonstrably effective medications.” But Dr. Nathan pointed out, those patients are not the majority with type 2 diabetes.
He laid out four main arguments for choosing traditional sequential therapy over initial combination therapy. For one, it “enables determination of efficacy of adding individual medications, while initial combination precludes determining benefits of individual drugs.”
Second, traditional sequential therapy allows for assessment of side effects from individual drugs.
“With Dr. DeFronzo’s algorithm you throw everything at them, and if they get nausea, vomiting, or diarrhea, you won’t know which drug it is ... If they get an allergic reaction, you won’t know which medication it is,” observed Dr. Nathan, who is director of the clinical research center and the diabetes center at Massachusetts General Hospital, Boston.
Moreover, he said, traditional sequential therapy “promotes individualization, with selection of drugs, which is something we’re laboring to achieve. Initial combination obviously limits that.”
Further, sequential therapy is “parsimonious and cost-effective, whereas initial combination therapy is expensive, with modest advantages at most.”
And, there are “lots of data” supporting traditional sequential therapy and relatively little for initial combination therapy.
Dr. Nathan added that when he searched the literature for relevant randomized clinical trials, he found 16 investigating initial combination therapy versus monotherapy, but only three that examined combination versus sequential therapy.
“Very few of them, except for EDICT and VERIFY, actually include the sequential therapy that we would use in practice,” he said.
Moreover, he observed, except for the VERIFY study, most are less than half a year in duration. And in VERIFY, there was an initial 20% difference in the proportions of patients with A1c below 7.0%, but by 12 months, that difference had shrunk to just 5%-6%.
“So, looking over time is very important,” Dr. Nathan cautioned. “We really have to be careful ... Six months is barely enough time to see A1c equilibrate ... You really need to study a long-term, chronic, progressive disease like type 2 diabetes over a long enough period of time to be clinically meaningful.”
Dr. Nathan acknowledged to Dr. DeFronzo that the latter’s EDICT study was “well conducted” and “long enough,” and that the researchers did examine monotherapy versus sequential therapy. However, he pointed out that it was a small study with 249 patients and the dropout rate was high, with 58% of patients remaining in the study with triple therapy versus 68% for conventional treatment. “That’s a bit problematic,” Dr. Nathan noted.
At 2 years, the “trivial” difference in A1c was 6.5% with conventional therapy versus 6.0% with triple therapy. “This is all on the very flat complications curve with regard to A1c,” he observed.
Patients treated with sequential therapy with sulfonylurea and insulin had higher rates of hypoglycemia and weight gain, whereas the combination triple therapy group had more gastrointestinal side effects and edema.
However, the most dramatic difference was cost: the average wholesale price for sequential therapy totaled about $85 per month, compared with $1,310 for initial combination therapy. For the approximately 1.5 million patients with new-onset type 2 diabetes in the United States, that difference comes to an additional cost per year of about $22 billion, Dr. Nathan calculated.
“Although current sequential therapy leaves much to be desired ... initial combination therapy has generally only been tested for brief, clinically insufficient periods.
“And therefore, I think sequential therapy is still what is called for,” he concluded. “Well-powered, acceptable-duration studies need to be performed before we can adopt initial/early combination therapy as the standard of care.”
Dr. DeFronzo has reported receiving research support from Boehringer Ingelheim, AstraZeneca, and Merck; payment or honoraria for lectures, presentations, speakers bureaus, manuscript writing, or educational events from AstraZeneca; and participation on a data safety monitoring board or advisory board for AstraZeneca, Intarcia, Novo Nordisk, and Boehringer Ingelheim. Dr. Nathan has reported no relevant financial relationships.
A version of this article appeared on Medscape.com.