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CHMP rejects plitidepsin again
The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended refusal of marketing authorization for plitidepsin (Aplidin).
PharmaMar is seeking approval for plitidepsin to treat adults with multiple myeloma (MM) who have received at least 3 prior treatments, including bortezomib and either lenalidomide or thalidomide.
Plitidepsin is intended to be used in combination with dexamethasone.
This is the second time the CHMP has recommended against authorizing plitidepsin for this indication. The first time was last December.
At that time, PharmaMar asked the CHMP to re-examine its opinion, and the CHMP obliged. The committee confirmed its negative opinion of plitidepsin last week.
The CHMP’s review
Upon its initial review, the CHMP was concerned that data from the main study of plitidepsin in MM—the phase 3 ADMYRE trial—did not demonstrate a sufficient benefit of plitidepsin plus dexamethasone, compared to dexamethasone alone, in MM patients who had received 3 to 6 prior therapies.
The CHMP noted that the data showed a modest increase in progression free-survival (PFS)—around 1 month—with plitidepsin. According to study investigators, the median PFS was 3.8 months in patients who received plitidepsin and 1.9 months in those who received dexamethasone alone. According to an independent review committee, the median PFS was 2.6 months and 1.7 months, respectively.
The CHMP also said improvement in overall survival (OS) was not sufficiently demonstrated in this trial. The median OS was 11.6 months in the plitidepsin arm and 6.4 months in the dexamethasone arm.
Finally, the CHMP noted that severe adverse events were reported more frequently in patients who received plitidepsin. The most common grade 3/4 treatment-related adverse events (in the plitidepsin and dexamethasone arms, respectively) were fatigue (10.8% vs 1.2%), myalgia (5.4% vs 0%), and nausea (3.6% vs 1.2%).
Rates of treatment discontinuation were 9% in the plitidepsin arm, 6.5% in the dexamethasone arm, and 13.5% among patients who crossed over from the dexamethasone arm to the plitidepsin arm. Patients were allowed to cross over if they progressed after at least 8 weeks of treatment.
Based on these data, the CHMP was of the opinion that the benefits of plitidepsin did not outweigh its risks, so the committee recommended refusal of marketing authorization. After re-examination, the CHMP remained of the same opinion.
The European Commission (EC) has the final say on the marketing authorization application for plitidepsin. Though it is not required to do so, the EC typically follows the CHMP’s advice. The EC makes its decision within 67 days of the CHMP’s opinion.
PharmaMar has not announced whether it plans to continue developing plitidepsin for MM patients if the EC refuses to authorize the drug, and the company did not respond to a request for comment.
About plitidepsin
Plitidepsin is an investigational anticancer agent of marine origin, originally obtained from the ascidian Aplidium albicans. The drug specifically binds to eEF1A2 and targets the non-canonical role of this protein, resulting in cancer cell death via apoptosis.
Plitidepsin is currently in clinical development for hematologic malignancies.
In a phase 1b trial (NCT02100657), researchers are evaluating plitidepsin in combination with bortezomib and dexamethasone for patients with relapsed/refractory MM.
In a phase 2 trial (NCT03117361), researchers are investigating plitidepsin in combination with bortezomib and dexamethasone for patients with MM that is refractory to both lenalidomide and bortezomib.
Plitidepsin has received orphan drug designation in the European Union and the US.
The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended refusal of marketing authorization for plitidepsin (Aplidin).
PharmaMar is seeking approval for plitidepsin to treat adults with multiple myeloma (MM) who have received at least 3 prior treatments, including bortezomib and either lenalidomide or thalidomide.
Plitidepsin is intended to be used in combination with dexamethasone.
This is the second time the CHMP has recommended against authorizing plitidepsin for this indication. The first time was last December.
At that time, PharmaMar asked the CHMP to re-examine its opinion, and the CHMP obliged. The committee confirmed its negative opinion of plitidepsin last week.
The CHMP’s review
Upon its initial review, the CHMP was concerned that data from the main study of plitidepsin in MM—the phase 3 ADMYRE trial—did not demonstrate a sufficient benefit of plitidepsin plus dexamethasone, compared to dexamethasone alone, in MM patients who had received 3 to 6 prior therapies.
The CHMP noted that the data showed a modest increase in progression free-survival (PFS)—around 1 month—with plitidepsin. According to study investigators, the median PFS was 3.8 months in patients who received plitidepsin and 1.9 months in those who received dexamethasone alone. According to an independent review committee, the median PFS was 2.6 months and 1.7 months, respectively.
The CHMP also said improvement in overall survival (OS) was not sufficiently demonstrated in this trial. The median OS was 11.6 months in the plitidepsin arm and 6.4 months in the dexamethasone arm.
Finally, the CHMP noted that severe adverse events were reported more frequently in patients who received plitidepsin. The most common grade 3/4 treatment-related adverse events (in the plitidepsin and dexamethasone arms, respectively) were fatigue (10.8% vs 1.2%), myalgia (5.4% vs 0%), and nausea (3.6% vs 1.2%).
Rates of treatment discontinuation were 9% in the plitidepsin arm, 6.5% in the dexamethasone arm, and 13.5% among patients who crossed over from the dexamethasone arm to the plitidepsin arm. Patients were allowed to cross over if they progressed after at least 8 weeks of treatment.
Based on these data, the CHMP was of the opinion that the benefits of plitidepsin did not outweigh its risks, so the committee recommended refusal of marketing authorization. After re-examination, the CHMP remained of the same opinion.
The European Commission (EC) has the final say on the marketing authorization application for plitidepsin. Though it is not required to do so, the EC typically follows the CHMP’s advice. The EC makes its decision within 67 days of the CHMP’s opinion.
PharmaMar has not announced whether it plans to continue developing plitidepsin for MM patients if the EC refuses to authorize the drug, and the company did not respond to a request for comment.
About plitidepsin
Plitidepsin is an investigational anticancer agent of marine origin, originally obtained from the ascidian Aplidium albicans. The drug specifically binds to eEF1A2 and targets the non-canonical role of this protein, resulting in cancer cell death via apoptosis.
Plitidepsin is currently in clinical development for hematologic malignancies.
In a phase 1b trial (NCT02100657), researchers are evaluating plitidepsin in combination with bortezomib and dexamethasone for patients with relapsed/refractory MM.
In a phase 2 trial (NCT03117361), researchers are investigating plitidepsin in combination with bortezomib and dexamethasone for patients with MM that is refractory to both lenalidomide and bortezomib.
Plitidepsin has received orphan drug designation in the European Union and the US.
The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended refusal of marketing authorization for plitidepsin (Aplidin).
PharmaMar is seeking approval for plitidepsin to treat adults with multiple myeloma (MM) who have received at least 3 prior treatments, including bortezomib and either lenalidomide or thalidomide.
Plitidepsin is intended to be used in combination with dexamethasone.
This is the second time the CHMP has recommended against authorizing plitidepsin for this indication. The first time was last December.
At that time, PharmaMar asked the CHMP to re-examine its opinion, and the CHMP obliged. The committee confirmed its negative opinion of plitidepsin last week.
The CHMP’s review
Upon its initial review, the CHMP was concerned that data from the main study of plitidepsin in MM—the phase 3 ADMYRE trial—did not demonstrate a sufficient benefit of plitidepsin plus dexamethasone, compared to dexamethasone alone, in MM patients who had received 3 to 6 prior therapies.
The CHMP noted that the data showed a modest increase in progression free-survival (PFS)—around 1 month—with plitidepsin. According to study investigators, the median PFS was 3.8 months in patients who received plitidepsin and 1.9 months in those who received dexamethasone alone. According to an independent review committee, the median PFS was 2.6 months and 1.7 months, respectively.
The CHMP also said improvement in overall survival (OS) was not sufficiently demonstrated in this trial. The median OS was 11.6 months in the plitidepsin arm and 6.4 months in the dexamethasone arm.
Finally, the CHMP noted that severe adverse events were reported more frequently in patients who received plitidepsin. The most common grade 3/4 treatment-related adverse events (in the plitidepsin and dexamethasone arms, respectively) were fatigue (10.8% vs 1.2%), myalgia (5.4% vs 0%), and nausea (3.6% vs 1.2%).
Rates of treatment discontinuation were 9% in the plitidepsin arm, 6.5% in the dexamethasone arm, and 13.5% among patients who crossed over from the dexamethasone arm to the plitidepsin arm. Patients were allowed to cross over if they progressed after at least 8 weeks of treatment.
Based on these data, the CHMP was of the opinion that the benefits of plitidepsin did not outweigh its risks, so the committee recommended refusal of marketing authorization. After re-examination, the CHMP remained of the same opinion.
The European Commission (EC) has the final say on the marketing authorization application for plitidepsin. Though it is not required to do so, the EC typically follows the CHMP’s advice. The EC makes its decision within 67 days of the CHMP’s opinion.
PharmaMar has not announced whether it plans to continue developing plitidepsin for MM patients if the EC refuses to authorize the drug, and the company did not respond to a request for comment.
About plitidepsin
Plitidepsin is an investigational anticancer agent of marine origin, originally obtained from the ascidian Aplidium albicans. The drug specifically binds to eEF1A2 and targets the non-canonical role of this protein, resulting in cancer cell death via apoptosis.
Plitidepsin is currently in clinical development for hematologic malignancies.
In a phase 1b trial (NCT02100657), researchers are evaluating plitidepsin in combination with bortezomib and dexamethasone for patients with relapsed/refractory MM.
In a phase 2 trial (NCT03117361), researchers are investigating plitidepsin in combination with bortezomib and dexamethasone for patients with MM that is refractory to both lenalidomide and bortezomib.
Plitidepsin has received orphan drug designation in the European Union and the US.
GPS consolidation may prolong PFS after ASCT
LISBON—Post-transplant therapy including galinpepimut-S (GPS) may prolong progression-free survival (PFS) in patients with high-risk multiple myeloma (MM), according to new research.
In a phase 2 trial, MM patients who received GPS and lenalidomide or bortezomib after autologous stem cell transplant (ASCT) had a median PFS of 23.6 months.
“Currently, post-transplant maintenance therapies for these difficult-to-treat patients are seemingly limited, with PFS rarely exceeding 12 to 14 months,” said Guenther Koehne, MD, PhD, from Miami Cancer Institute of Baptist Health South Florida.
Dr Koehne presented results observed with lenalidomide/bortezomib maintenance plus GPS consolidation at the 44th Annual Meeting of the EBMT (abstract OS4-6).
The trial was supported by the Leo A. Guthart and Kathryn Medina Research Fund and SELLAS Life Sciences Group, the company developing GPS.
The study enrolled 19 MM patients. Fifteen of them had high-risk cytogenetics at diagnosis, and 18 were at least minimal residual disease-positive after ASCT.
The goal of GPS therapy was to stimulate an immune response to prevent or delay MM progression. GPS is a cancer immunotherapeutic consisting of 4 modified peptide chains that induce an innate immune response against the WT1 antigen.
Patients began receiving GPS within 22 days of ASCT. They received 6 doses, administered subcutaneously with the oil emulsifier montanide every 2 weeks. Injection sites were pre-stimulated with granulocyte-macrophage colony-stimulating factor (70 μg) on days -2 (± 1 day) and 0 of each GPS vaccination.
The patients underwent clinical, immune response, and correlative assessment 2 to 4 weeks after the 6th GPS dose. Then, they received 6 additional monthly doses of GPS as well as lenalidomide (n=18) or bortezomib (n=1) maintenance, starting on day 100 post-ASCT. They underwent clinical, immune response, and correlative assessment again, 2 to 4 weeks after the 12th GPS dose.
Results
Dr Koehne said GPS stimulated time-dependent CD4+ or CD8+ T-cell immune responses specific for all 4 WT1 peptides within GPS, 2 of which are heteroclitic.
Immune responses were confirmed in up to 91% of patients, with multivalent immune responses in up to 64% of patients. And 75% of patients had multifunctional cross-epitope T-cell reactivity to antigenic epitopes against which the hosts were not specifically immunized, in a pattern akin to epitope spreading.
Dr Koehne also said immune responses were linked to clinical activity. In patients who received all 12 doses of GPS (n=12), there was a “strong and bidirectional association” between clinical benefit—defined as complete response (CR) or very good partial response (VGPR)—and frequency of CD4/CD8 immune responses.
Of those patients who had achieved CR/VGPR upon completion of GPS treatment, 100% (n=11) had CD4 immune responses and 81.8% (n=9) had CD8 immune responses.
Among patients who maintained immune response positivity, the CR/VGPR rate was 54.6% if CD4 immune response positivity to any of the 4 native GPS peptides was maintained and 44.0% if CD8 immune response positivity to any of the 4 native GPS peptides was maintained.
The PFS was 81% at 12 months and 62% at 18 months. The median PFS was 23.6 months (range, 15.2 to not reached).
The overall survival was 88% at 18 months, and the median overall survival was not reached.
LISBON—Post-transplant therapy including galinpepimut-S (GPS) may prolong progression-free survival (PFS) in patients with high-risk multiple myeloma (MM), according to new research.
In a phase 2 trial, MM patients who received GPS and lenalidomide or bortezomib after autologous stem cell transplant (ASCT) had a median PFS of 23.6 months.
“Currently, post-transplant maintenance therapies for these difficult-to-treat patients are seemingly limited, with PFS rarely exceeding 12 to 14 months,” said Guenther Koehne, MD, PhD, from Miami Cancer Institute of Baptist Health South Florida.
Dr Koehne presented results observed with lenalidomide/bortezomib maintenance plus GPS consolidation at the 44th Annual Meeting of the EBMT (abstract OS4-6).
The trial was supported by the Leo A. Guthart and Kathryn Medina Research Fund and SELLAS Life Sciences Group, the company developing GPS.
The study enrolled 19 MM patients. Fifteen of them had high-risk cytogenetics at diagnosis, and 18 were at least minimal residual disease-positive after ASCT.
The goal of GPS therapy was to stimulate an immune response to prevent or delay MM progression. GPS is a cancer immunotherapeutic consisting of 4 modified peptide chains that induce an innate immune response against the WT1 antigen.
Patients began receiving GPS within 22 days of ASCT. They received 6 doses, administered subcutaneously with the oil emulsifier montanide every 2 weeks. Injection sites were pre-stimulated with granulocyte-macrophage colony-stimulating factor (70 μg) on days -2 (± 1 day) and 0 of each GPS vaccination.
The patients underwent clinical, immune response, and correlative assessment 2 to 4 weeks after the 6th GPS dose. Then, they received 6 additional monthly doses of GPS as well as lenalidomide (n=18) or bortezomib (n=1) maintenance, starting on day 100 post-ASCT. They underwent clinical, immune response, and correlative assessment again, 2 to 4 weeks after the 12th GPS dose.
Results
Dr Koehne said GPS stimulated time-dependent CD4+ or CD8+ T-cell immune responses specific for all 4 WT1 peptides within GPS, 2 of which are heteroclitic.
Immune responses were confirmed in up to 91% of patients, with multivalent immune responses in up to 64% of patients. And 75% of patients had multifunctional cross-epitope T-cell reactivity to antigenic epitopes against which the hosts were not specifically immunized, in a pattern akin to epitope spreading.
Dr Koehne also said immune responses were linked to clinical activity. In patients who received all 12 doses of GPS (n=12), there was a “strong and bidirectional association” between clinical benefit—defined as complete response (CR) or very good partial response (VGPR)—and frequency of CD4/CD8 immune responses.
Of those patients who had achieved CR/VGPR upon completion of GPS treatment, 100% (n=11) had CD4 immune responses and 81.8% (n=9) had CD8 immune responses.
Among patients who maintained immune response positivity, the CR/VGPR rate was 54.6% if CD4 immune response positivity to any of the 4 native GPS peptides was maintained and 44.0% if CD8 immune response positivity to any of the 4 native GPS peptides was maintained.
The PFS was 81% at 12 months and 62% at 18 months. The median PFS was 23.6 months (range, 15.2 to not reached).
The overall survival was 88% at 18 months, and the median overall survival was not reached.
LISBON—Post-transplant therapy including galinpepimut-S (GPS) may prolong progression-free survival (PFS) in patients with high-risk multiple myeloma (MM), according to new research.
In a phase 2 trial, MM patients who received GPS and lenalidomide or bortezomib after autologous stem cell transplant (ASCT) had a median PFS of 23.6 months.
“Currently, post-transplant maintenance therapies for these difficult-to-treat patients are seemingly limited, with PFS rarely exceeding 12 to 14 months,” said Guenther Koehne, MD, PhD, from Miami Cancer Institute of Baptist Health South Florida.
Dr Koehne presented results observed with lenalidomide/bortezomib maintenance plus GPS consolidation at the 44th Annual Meeting of the EBMT (abstract OS4-6).
The trial was supported by the Leo A. Guthart and Kathryn Medina Research Fund and SELLAS Life Sciences Group, the company developing GPS.
The study enrolled 19 MM patients. Fifteen of them had high-risk cytogenetics at diagnosis, and 18 were at least minimal residual disease-positive after ASCT.
The goal of GPS therapy was to stimulate an immune response to prevent or delay MM progression. GPS is a cancer immunotherapeutic consisting of 4 modified peptide chains that induce an innate immune response against the WT1 antigen.
Patients began receiving GPS within 22 days of ASCT. They received 6 doses, administered subcutaneously with the oil emulsifier montanide every 2 weeks. Injection sites were pre-stimulated with granulocyte-macrophage colony-stimulating factor (70 μg) on days -2 (± 1 day) and 0 of each GPS vaccination.
The patients underwent clinical, immune response, and correlative assessment 2 to 4 weeks after the 6th GPS dose. Then, they received 6 additional monthly doses of GPS as well as lenalidomide (n=18) or bortezomib (n=1) maintenance, starting on day 100 post-ASCT. They underwent clinical, immune response, and correlative assessment again, 2 to 4 weeks after the 12th GPS dose.
Results
Dr Koehne said GPS stimulated time-dependent CD4+ or CD8+ T-cell immune responses specific for all 4 WT1 peptides within GPS, 2 of which are heteroclitic.
Immune responses were confirmed in up to 91% of patients, with multivalent immune responses in up to 64% of patients. And 75% of patients had multifunctional cross-epitope T-cell reactivity to antigenic epitopes against which the hosts were not specifically immunized, in a pattern akin to epitope spreading.
Dr Koehne also said immune responses were linked to clinical activity. In patients who received all 12 doses of GPS (n=12), there was a “strong and bidirectional association” between clinical benefit—defined as complete response (CR) or very good partial response (VGPR)—and frequency of CD4/CD8 immune responses.
Of those patients who had achieved CR/VGPR upon completion of GPS treatment, 100% (n=11) had CD4 immune responses and 81.8% (n=9) had CD8 immune responses.
Among patients who maintained immune response positivity, the CR/VGPR rate was 54.6% if CD4 immune response positivity to any of the 4 native GPS peptides was maintained and 44.0% if CD8 immune response positivity to any of the 4 native GPS peptides was maintained.
The PFS was 81% at 12 months and 62% at 18 months. The median PFS was 23.6 months (range, 15.2 to not reached).
The overall survival was 88% at 18 months, and the median overall survival was not reached.
More evidence links increased BMI to higher multiple myeloma risk
A high body mass index in both early and later adulthood increases the risk for developing multiple myeloma (MM), according to a prospective analysis.
“This association did not significantly differ by gender but was nonetheless slightly stronger in men,” wrote Catherine R. Marinac, PhD, of the Dana-Farber Cancer Institute, Boston, and her colleagues. “MM risk was significantly positively associated with weight change and suggestive of a positive association for change in BMI since young adulthood. In contrast, we did not observe statistically significant associations of cumulative average physical activity or walking with MM risk.”
Dr. Marinac and her associates analyzed participants from the Nurses’ Health Study (NHS), the Health Professionals Follow-Up Study (HPFS), and the Women’s Health Study (WHS) with a pooled total of 575 MM cases and more than 5 million person-years of follow-up. From all of those databases, a combined baseline total of 49,374 men and 153,260 women were included in the analyses. Participants in all three of the cohorts were predominately white.
Each participant was required to report height and weight on a baseline questionnaire and updated weights on subsequent questionnaires. Using that height and weight information, the researchers calculated BMI. Physical activity also was reported using questionnaires, beginning in 1986 in the HPFS and NHS groups and at baseline for WHS, with all groups providing updates every 2-4 years. The researchers used the physical activity information to calculate the total metabolic equivalent (MET) hours of all activity and of walking per week.
Dr. Marinac and her team identified a total of 205 men from the HPFS cohort and 370 women (325 NHS, 45 WHS) with confirmed diagnoses of MM. The BMIs of those participants ranged from 23.8-25.8 kg/m2 at baseline and from 21.3-23.0 kg/m2 in young adulthood. Across all cohorts, each 5 kg/m2 increase in cumulative average adult BMI significantly increased the risk of MM by 17% (hazard ratio, 1.17; 95% confidence interval, 1.05-1.29).
In addition, the MM risk rose almost 30% for every 5 kg/m2 increase in young adult BMI (HR, 1.28; 95% CI, 1.12-1.47). Increased risk was not strictly related to changes in BMI but to incremental weight gain since young adulthood. (pooled HR, 1.04; 95% CI, 1.00-1.08; P = 0.03).
The study confirmed correlations between weight gain and increased MM risk, however, it also had certain limitations. For example, much of the data concerning weight, height, and physical activity were all self-reported. Another limitation is the sociodemographic heterogeneity of the study population.
Despite those limitations, Dr. Marinac emphasized that the study results add to evidence concerning weight gain and MM risk.
“Our findings support the growing body of literature demonstrating that a high BMI both early and later in adulthood is associated with the risk of MM, and suggest that maintaining a healthy body weight throughout life may be an important component to a much-needed MM prevention strategy,” wrote Dr. Marinac, who also is affiliated with the Harvard T.H. Chan School of Public Health, also in Boston.
“Further larger-scale studies aimed at clarifying the influence of obesity timing and duration and at directly evaluating the role of weight loss, ideally conducted in diverse prospective study populations and in [monoclonal gammopathy of undetermined significance] patients, will be important for elaborating the role of weight maintenance in MM prevention and for identifying high risk subgroups of patients that may benefit from weight loss.”
None of the researchers had competing financial interests to disclose.
SOURCE: Marinac CR et al. Br J Cancer. 2018 Mar 12. doi: 10.1038/s41416-018-0010-4.
A high body mass index in both early and later adulthood increases the risk for developing multiple myeloma (MM), according to a prospective analysis.
“This association did not significantly differ by gender but was nonetheless slightly stronger in men,” wrote Catherine R. Marinac, PhD, of the Dana-Farber Cancer Institute, Boston, and her colleagues. “MM risk was significantly positively associated with weight change and suggestive of a positive association for change in BMI since young adulthood. In contrast, we did not observe statistically significant associations of cumulative average physical activity or walking with MM risk.”
Dr. Marinac and her associates analyzed participants from the Nurses’ Health Study (NHS), the Health Professionals Follow-Up Study (HPFS), and the Women’s Health Study (WHS) with a pooled total of 575 MM cases and more than 5 million person-years of follow-up. From all of those databases, a combined baseline total of 49,374 men and 153,260 women were included in the analyses. Participants in all three of the cohorts were predominately white.
Each participant was required to report height and weight on a baseline questionnaire and updated weights on subsequent questionnaires. Using that height and weight information, the researchers calculated BMI. Physical activity also was reported using questionnaires, beginning in 1986 in the HPFS and NHS groups and at baseline for WHS, with all groups providing updates every 2-4 years. The researchers used the physical activity information to calculate the total metabolic equivalent (MET) hours of all activity and of walking per week.
Dr. Marinac and her team identified a total of 205 men from the HPFS cohort and 370 women (325 NHS, 45 WHS) with confirmed diagnoses of MM. The BMIs of those participants ranged from 23.8-25.8 kg/m2 at baseline and from 21.3-23.0 kg/m2 in young adulthood. Across all cohorts, each 5 kg/m2 increase in cumulative average adult BMI significantly increased the risk of MM by 17% (hazard ratio, 1.17; 95% confidence interval, 1.05-1.29).
In addition, the MM risk rose almost 30% for every 5 kg/m2 increase in young adult BMI (HR, 1.28; 95% CI, 1.12-1.47). Increased risk was not strictly related to changes in BMI but to incremental weight gain since young adulthood. (pooled HR, 1.04; 95% CI, 1.00-1.08; P = 0.03).
The study confirmed correlations between weight gain and increased MM risk, however, it also had certain limitations. For example, much of the data concerning weight, height, and physical activity were all self-reported. Another limitation is the sociodemographic heterogeneity of the study population.
Despite those limitations, Dr. Marinac emphasized that the study results add to evidence concerning weight gain and MM risk.
“Our findings support the growing body of literature demonstrating that a high BMI both early and later in adulthood is associated with the risk of MM, and suggest that maintaining a healthy body weight throughout life may be an important component to a much-needed MM prevention strategy,” wrote Dr. Marinac, who also is affiliated with the Harvard T.H. Chan School of Public Health, also in Boston.
“Further larger-scale studies aimed at clarifying the influence of obesity timing and duration and at directly evaluating the role of weight loss, ideally conducted in diverse prospective study populations and in [monoclonal gammopathy of undetermined significance] patients, will be important for elaborating the role of weight maintenance in MM prevention and for identifying high risk subgroups of patients that may benefit from weight loss.”
None of the researchers had competing financial interests to disclose.
SOURCE: Marinac CR et al. Br J Cancer. 2018 Mar 12. doi: 10.1038/s41416-018-0010-4.
A high body mass index in both early and later adulthood increases the risk for developing multiple myeloma (MM), according to a prospective analysis.
“This association did not significantly differ by gender but was nonetheless slightly stronger in men,” wrote Catherine R. Marinac, PhD, of the Dana-Farber Cancer Institute, Boston, and her colleagues. “MM risk was significantly positively associated with weight change and suggestive of a positive association for change in BMI since young adulthood. In contrast, we did not observe statistically significant associations of cumulative average physical activity or walking with MM risk.”
Dr. Marinac and her associates analyzed participants from the Nurses’ Health Study (NHS), the Health Professionals Follow-Up Study (HPFS), and the Women’s Health Study (WHS) with a pooled total of 575 MM cases and more than 5 million person-years of follow-up. From all of those databases, a combined baseline total of 49,374 men and 153,260 women were included in the analyses. Participants in all three of the cohorts were predominately white.
Each participant was required to report height and weight on a baseline questionnaire and updated weights on subsequent questionnaires. Using that height and weight information, the researchers calculated BMI. Physical activity also was reported using questionnaires, beginning in 1986 in the HPFS and NHS groups and at baseline for WHS, with all groups providing updates every 2-4 years. The researchers used the physical activity information to calculate the total metabolic equivalent (MET) hours of all activity and of walking per week.
Dr. Marinac and her team identified a total of 205 men from the HPFS cohort and 370 women (325 NHS, 45 WHS) with confirmed diagnoses of MM. The BMIs of those participants ranged from 23.8-25.8 kg/m2 at baseline and from 21.3-23.0 kg/m2 in young adulthood. Across all cohorts, each 5 kg/m2 increase in cumulative average adult BMI significantly increased the risk of MM by 17% (hazard ratio, 1.17; 95% confidence interval, 1.05-1.29).
In addition, the MM risk rose almost 30% for every 5 kg/m2 increase in young adult BMI (HR, 1.28; 95% CI, 1.12-1.47). Increased risk was not strictly related to changes in BMI but to incremental weight gain since young adulthood. (pooled HR, 1.04; 95% CI, 1.00-1.08; P = 0.03).
The study confirmed correlations between weight gain and increased MM risk, however, it also had certain limitations. For example, much of the data concerning weight, height, and physical activity were all self-reported. Another limitation is the sociodemographic heterogeneity of the study population.
Despite those limitations, Dr. Marinac emphasized that the study results add to evidence concerning weight gain and MM risk.
“Our findings support the growing body of literature demonstrating that a high BMI both early and later in adulthood is associated with the risk of MM, and suggest that maintaining a healthy body weight throughout life may be an important component to a much-needed MM prevention strategy,” wrote Dr. Marinac, who also is affiliated with the Harvard T.H. Chan School of Public Health, also in Boston.
“Further larger-scale studies aimed at clarifying the influence of obesity timing and duration and at directly evaluating the role of weight loss, ideally conducted in diverse prospective study populations and in [monoclonal gammopathy of undetermined significance] patients, will be important for elaborating the role of weight maintenance in MM prevention and for identifying high risk subgroups of patients that may benefit from weight loss.”
None of the researchers had competing financial interests to disclose.
SOURCE: Marinac CR et al. Br J Cancer. 2018 Mar 12. doi: 10.1038/s41416-018-0010-4.
FROM BRITISH JOURNAL OF CANCER
Key clinical point: Moderate increases in body mass index (BMI) can dramatically increase the risk of developing multiple myeloma (MM).
Major finding: Each 5 kg/m2 increase in cumulative average adult BMI significantly increased the risk of MM by 17%.
Study details: Prospective analysis of 49,374 men and 153,260 women from three databases.
Disclosures: None of the researchers had competing financial interests to disclose.
Source: Marinac CR et al. Br J Cancer. 2018 Mar 12. doi: 10.1038/s41416-018-0010-4.
In myeloma, third ASCT is a viable option
A third autologous stem cell transplantation (ASCT) is feasible and provides clinical benefit to patients with relapsed multiple myeloma, according to findings from a retrospective study.
The benefits appear to be most pronounced in patients who had a long duration of response to the previous ASCT, the researchers wrote in Biology of Blood and Marrow Transplantation.
“A salvage third ASCT is of value for patients with relapsed multiple myeloma,” Laurent Garderet, MD, of the department of hematology, Hôpital Saint Antoine, Paris, and coauthors wrote in the report.
A third transplantation is most commonly used in patients who relapse following tandem ASCT. Less often, it is done in patients who receive upfront ASCT, relapse, undergo a second ASCT, and relapse again.
“The first scenario gives much better results, due in part to a better remission status at the third ASCT with no signs of increased [second primary malignancy],” the researchers wrote.
In that group, median overall survival was greater than 5 years if the relapse occurred 3 years or more after the initial tandem ASCT, study results show.
The retrospective analysis, based on European Society for Blood and Marrow Transplantation data, included 570 patients who had undergone a third ASCT between 1997 and 2010. Of that group, 482 patients (81%) received the third transplantation after tandem ASCT and subsequent relapse, and 88 (15%) received it after second relapse.
After third ASCT, overall survival was 33 months in the larger tandem transplant group with 61 months of follow-up, and 15 months in the smaller group of patients who received two salvage ASCTs after 48 months of follow-up.
Median progression-free survival was 13 and 8 months for the tandem ASCT and two-salvage–ASCT groups, respectively, while 100-day nonrelapse mortality was 4% and 7%, respectively.
For both groups, better outcomes were associated with longer duration of remission after the second ASCT, the researchers reported.
Moreover, the time from second ASCT to relapse was the only favorable prognostic factor associated with survival after third ASCT in a multivariate analysis of the patients who relapsed following tandem transplant. The hazard ratio for relapse occurring between 18 and 36 months vs. within 18 months was 0.62 (95% confidence interval, 0.47-0.82; P = .01); for relapse after 36 months, the HR was 0.35 (95% CI, 0.25-0.49; P less than .001).
The researchers acknowledged that, beyond transplant, treatment of myeloma has changed substantially in recent years and could change the clinical picture for patients undergoing a third ASCT.
“The availability of novel agents may further improve the response to a third ASCT, rather than impairing its usefulness in the salvage setting, by enhancing the depth of response before ASCT, which could result in improved durability of the outcome,” they wrote.
The researchers reported having no financial disclosures related to this study.
SOURCE: Garderet L et al. Biol Blood Marrow Transplant. 2018 Feb 3. doi: 10.1016/j.bbmt.2018.01.035.
A third autologous stem cell transplantation (ASCT) is feasible and provides clinical benefit to patients with relapsed multiple myeloma, according to findings from a retrospective study.
The benefits appear to be most pronounced in patients who had a long duration of response to the previous ASCT, the researchers wrote in Biology of Blood and Marrow Transplantation.
“A salvage third ASCT is of value for patients with relapsed multiple myeloma,” Laurent Garderet, MD, of the department of hematology, Hôpital Saint Antoine, Paris, and coauthors wrote in the report.
A third transplantation is most commonly used in patients who relapse following tandem ASCT. Less often, it is done in patients who receive upfront ASCT, relapse, undergo a second ASCT, and relapse again.
“The first scenario gives much better results, due in part to a better remission status at the third ASCT with no signs of increased [second primary malignancy],” the researchers wrote.
In that group, median overall survival was greater than 5 years if the relapse occurred 3 years or more after the initial tandem ASCT, study results show.
The retrospective analysis, based on European Society for Blood and Marrow Transplantation data, included 570 patients who had undergone a third ASCT between 1997 and 2010. Of that group, 482 patients (81%) received the third transplantation after tandem ASCT and subsequent relapse, and 88 (15%) received it after second relapse.
After third ASCT, overall survival was 33 months in the larger tandem transplant group with 61 months of follow-up, and 15 months in the smaller group of patients who received two salvage ASCTs after 48 months of follow-up.
Median progression-free survival was 13 and 8 months for the tandem ASCT and two-salvage–ASCT groups, respectively, while 100-day nonrelapse mortality was 4% and 7%, respectively.
For both groups, better outcomes were associated with longer duration of remission after the second ASCT, the researchers reported.
Moreover, the time from second ASCT to relapse was the only favorable prognostic factor associated with survival after third ASCT in a multivariate analysis of the patients who relapsed following tandem transplant. The hazard ratio for relapse occurring between 18 and 36 months vs. within 18 months was 0.62 (95% confidence interval, 0.47-0.82; P = .01); for relapse after 36 months, the HR was 0.35 (95% CI, 0.25-0.49; P less than .001).
The researchers acknowledged that, beyond transplant, treatment of myeloma has changed substantially in recent years and could change the clinical picture for patients undergoing a third ASCT.
“The availability of novel agents may further improve the response to a third ASCT, rather than impairing its usefulness in the salvage setting, by enhancing the depth of response before ASCT, which could result in improved durability of the outcome,” they wrote.
The researchers reported having no financial disclosures related to this study.
SOURCE: Garderet L et al. Biol Blood Marrow Transplant. 2018 Feb 3. doi: 10.1016/j.bbmt.2018.01.035.
A third autologous stem cell transplantation (ASCT) is feasible and provides clinical benefit to patients with relapsed multiple myeloma, according to findings from a retrospective study.
The benefits appear to be most pronounced in patients who had a long duration of response to the previous ASCT, the researchers wrote in Biology of Blood and Marrow Transplantation.
“A salvage third ASCT is of value for patients with relapsed multiple myeloma,” Laurent Garderet, MD, of the department of hematology, Hôpital Saint Antoine, Paris, and coauthors wrote in the report.
A third transplantation is most commonly used in patients who relapse following tandem ASCT. Less often, it is done in patients who receive upfront ASCT, relapse, undergo a second ASCT, and relapse again.
“The first scenario gives much better results, due in part to a better remission status at the third ASCT with no signs of increased [second primary malignancy],” the researchers wrote.
In that group, median overall survival was greater than 5 years if the relapse occurred 3 years or more after the initial tandem ASCT, study results show.
The retrospective analysis, based on European Society for Blood and Marrow Transplantation data, included 570 patients who had undergone a third ASCT between 1997 and 2010. Of that group, 482 patients (81%) received the third transplantation after tandem ASCT and subsequent relapse, and 88 (15%) received it after second relapse.
After third ASCT, overall survival was 33 months in the larger tandem transplant group with 61 months of follow-up, and 15 months in the smaller group of patients who received two salvage ASCTs after 48 months of follow-up.
Median progression-free survival was 13 and 8 months for the tandem ASCT and two-salvage–ASCT groups, respectively, while 100-day nonrelapse mortality was 4% and 7%, respectively.
For both groups, better outcomes were associated with longer duration of remission after the second ASCT, the researchers reported.
Moreover, the time from second ASCT to relapse was the only favorable prognostic factor associated with survival after third ASCT in a multivariate analysis of the patients who relapsed following tandem transplant. The hazard ratio for relapse occurring between 18 and 36 months vs. within 18 months was 0.62 (95% confidence interval, 0.47-0.82; P = .01); for relapse after 36 months, the HR was 0.35 (95% CI, 0.25-0.49; P less than .001).
The researchers acknowledged that, beyond transplant, treatment of myeloma has changed substantially in recent years and could change the clinical picture for patients undergoing a third ASCT.
“The availability of novel agents may further improve the response to a third ASCT, rather than impairing its usefulness in the salvage setting, by enhancing the depth of response before ASCT, which could result in improved durability of the outcome,” they wrote.
The researchers reported having no financial disclosures related to this study.
SOURCE: Garderet L et al. Biol Blood Marrow Transplant. 2018 Feb 3. doi: 10.1016/j.bbmt.2018.01.035.
FROM BIOLOGY OF BLOOD AND MARROW TRANSPLANTATION
Key clinical point:
Major finding: Relapse-free interval was a favorable prognostic factor and significantly correlated with overall survival (P less than .001) in patients who underwent a third ASCT.
Study details: A retrospective analysis of European Society for Blood and Marrow Transplantation data including 570 patients who had undergone a third ASCT between 1997 and 2010.
Disclosures: The study authors reported having no financial disclosures related to the study.
Source: Garderet L et al. Biol Blood Marrow Transplant. 2018 Feb 3. doi: 10.1016/j.bbmt.2018.01.035.
Researchers question validity of NCCN guidelines
New research suggests guidelines from the National Comprehensive Cancer Network (NCCN) may sometimes be supported by low-quality evidence or no evidence at all.
Researchers compared NCCN recommendations for cancer drugs to US cancer drug approvals over a 5-year period.
Thirty-nine percent of NCCN’s treatment recommendations did not coincide with uses approved by the US Food and Drug Administration (FDA).
For most of these recommendations (84%), NCCN did not provide supporting data from randomized, phase 3 trials.
For 36% of the recommendations, NCCN gave no supporting evidence.
Vinay Prasad, MD, of Oregon Health & Science University in Portland, Oregon, and his colleagues reported these findings in The BMJ.
Dr Prasad and his colleagues compared FDA approvals of cancer drugs between 2011 and 2015 with NCCN recommendations as of March 25, 2016.
When NCCN made recommendations beyond FDA approvals, the researchers evaluated the evidence used to support those recommendations.
Forty-seven new cancer drugs were approved by the FDA for 69 indications between 2011 and 2015. NCCN recommended the 47 drugs for 113 indications, including the 69 FDA-approved indications.
So 39% (n=44) of NCCN’s recommendations were not approved by the FDA, and NCCN gave the following evidence to support these recommendations:
- No evidence—36% (n=16)
- Phase 2 trial without randomization—30% (n=13)
- Randomized, phase 3 trial—16% (n=7)
- Phase 2 trial with randomization—7% (n=3)
- Case report or series of less than 5 patients—5% (n=2)
- Book chapter or review article—2% (n=1)
- Phase 1 trial—2% (n=1)
- Ongoing trial—2% (n=1).
Dr Prasad and his colleagues did point out that not all FDA approvals are supported by randomized, phase 3 trials.
And when the team followed-up 21 months after their initial analysis, they found that 6 of the 44 (14%) additional recommendations by NCCN had received FDA approval.
The researchers also noted that they did not search for independent evidence to support NCCN recommendations beyond the references NCCN provided. So some of the recommendations may have had more or better supporting evidence than what was provided.
Still, the team said these results suggest NCCN “frequently” makes recommendations that go beyond FDA approvals and “often fails to cite evidence or relies on low levels of evidence.” Therefore, NCCN should cite all evidence used to formulate its recommendations.
NCCN argues that it does provide ample evidence to support the recommendations in its guidelines.
“The NCCN guidelines contain more than 24,500 references to inform users of the evidence used in making its decisions,” said Robert W. Carlson, MD, chief executive officer of NCCN.
“These data are supplemented by the analysis of the available evidence by expert clinician researchers and patient advocates who evaluate each recommendation and come to consensus. Each recommendation is labeled with a Category of Evidence, and the vast majority of those for systemic therapies are accompanied by Evidence Blocks, which outline, on 1-5 scales, the efficacy, safety, quality of the evidence, consistency of the evidence, and affordability of the treatment.”
New research suggests guidelines from the National Comprehensive Cancer Network (NCCN) may sometimes be supported by low-quality evidence or no evidence at all.
Researchers compared NCCN recommendations for cancer drugs to US cancer drug approvals over a 5-year period.
Thirty-nine percent of NCCN’s treatment recommendations did not coincide with uses approved by the US Food and Drug Administration (FDA).
For most of these recommendations (84%), NCCN did not provide supporting data from randomized, phase 3 trials.
For 36% of the recommendations, NCCN gave no supporting evidence.
Vinay Prasad, MD, of Oregon Health & Science University in Portland, Oregon, and his colleagues reported these findings in The BMJ.
Dr Prasad and his colleagues compared FDA approvals of cancer drugs between 2011 and 2015 with NCCN recommendations as of March 25, 2016.
When NCCN made recommendations beyond FDA approvals, the researchers evaluated the evidence used to support those recommendations.
Forty-seven new cancer drugs were approved by the FDA for 69 indications between 2011 and 2015. NCCN recommended the 47 drugs for 113 indications, including the 69 FDA-approved indications.
So 39% (n=44) of NCCN’s recommendations were not approved by the FDA, and NCCN gave the following evidence to support these recommendations:
- No evidence—36% (n=16)
- Phase 2 trial without randomization—30% (n=13)
- Randomized, phase 3 trial—16% (n=7)
- Phase 2 trial with randomization—7% (n=3)
- Case report or series of less than 5 patients—5% (n=2)
- Book chapter or review article—2% (n=1)
- Phase 1 trial—2% (n=1)
- Ongoing trial—2% (n=1).
Dr Prasad and his colleagues did point out that not all FDA approvals are supported by randomized, phase 3 trials.
And when the team followed-up 21 months after their initial analysis, they found that 6 of the 44 (14%) additional recommendations by NCCN had received FDA approval.
The researchers also noted that they did not search for independent evidence to support NCCN recommendations beyond the references NCCN provided. So some of the recommendations may have had more or better supporting evidence than what was provided.
Still, the team said these results suggest NCCN “frequently” makes recommendations that go beyond FDA approvals and “often fails to cite evidence or relies on low levels of evidence.” Therefore, NCCN should cite all evidence used to formulate its recommendations.
NCCN argues that it does provide ample evidence to support the recommendations in its guidelines.
“The NCCN guidelines contain more than 24,500 references to inform users of the evidence used in making its decisions,” said Robert W. Carlson, MD, chief executive officer of NCCN.
“These data are supplemented by the analysis of the available evidence by expert clinician researchers and patient advocates who evaluate each recommendation and come to consensus. Each recommendation is labeled with a Category of Evidence, and the vast majority of those for systemic therapies are accompanied by Evidence Blocks, which outline, on 1-5 scales, the efficacy, safety, quality of the evidence, consistency of the evidence, and affordability of the treatment.”
New research suggests guidelines from the National Comprehensive Cancer Network (NCCN) may sometimes be supported by low-quality evidence or no evidence at all.
Researchers compared NCCN recommendations for cancer drugs to US cancer drug approvals over a 5-year period.
Thirty-nine percent of NCCN’s treatment recommendations did not coincide with uses approved by the US Food and Drug Administration (FDA).
For most of these recommendations (84%), NCCN did not provide supporting data from randomized, phase 3 trials.
For 36% of the recommendations, NCCN gave no supporting evidence.
Vinay Prasad, MD, of Oregon Health & Science University in Portland, Oregon, and his colleagues reported these findings in The BMJ.
Dr Prasad and his colleagues compared FDA approvals of cancer drugs between 2011 and 2015 with NCCN recommendations as of March 25, 2016.
When NCCN made recommendations beyond FDA approvals, the researchers evaluated the evidence used to support those recommendations.
Forty-seven new cancer drugs were approved by the FDA for 69 indications between 2011 and 2015. NCCN recommended the 47 drugs for 113 indications, including the 69 FDA-approved indications.
So 39% (n=44) of NCCN’s recommendations were not approved by the FDA, and NCCN gave the following evidence to support these recommendations:
- No evidence—36% (n=16)
- Phase 2 trial without randomization—30% (n=13)
- Randomized, phase 3 trial—16% (n=7)
- Phase 2 trial with randomization—7% (n=3)
- Case report or series of less than 5 patients—5% (n=2)
- Book chapter or review article—2% (n=1)
- Phase 1 trial—2% (n=1)
- Ongoing trial—2% (n=1).
Dr Prasad and his colleagues did point out that not all FDA approvals are supported by randomized, phase 3 trials.
And when the team followed-up 21 months after their initial analysis, they found that 6 of the 44 (14%) additional recommendations by NCCN had received FDA approval.
The researchers also noted that they did not search for independent evidence to support NCCN recommendations beyond the references NCCN provided. So some of the recommendations may have had more or better supporting evidence than what was provided.
Still, the team said these results suggest NCCN “frequently” makes recommendations that go beyond FDA approvals and “often fails to cite evidence or relies on low levels of evidence.” Therefore, NCCN should cite all evidence used to formulate its recommendations.
NCCN argues that it does provide ample evidence to support the recommendations in its guidelines.
“The NCCN guidelines contain more than 24,500 references to inform users of the evidence used in making its decisions,” said Robert W. Carlson, MD, chief executive officer of NCCN.
“These data are supplemented by the analysis of the available evidence by expert clinician researchers and patient advocates who evaluate each recommendation and come to consensus. Each recommendation is labeled with a Category of Evidence, and the vast majority of those for systemic therapies are accompanied by Evidence Blocks, which outline, on 1-5 scales, the efficacy, safety, quality of the evidence, consistency of the evidence, and affordability of the treatment.”
High efficacy, no safety signals for herpes zoster vaccine post-HSCT
SALT LAKE CITY – A recently approved adjuvanted herpes zoster vaccine)(Shingrix) effectively and safely prevented herpes zoster in a population of patients with multiple myeloma and other hematologic malignancies who received autologous hematopoietic stem cell transplantation.
The use of recombinant varicella zoster virus glycoprotein E in combination with an adjuvant system gives immunosuppressed individuals who have received hematopoietic stem cell transplantation (HSCT) a safe option for prevention of herpes zoster (HZ), said Javier de la Serna, MD, PhD, speaking at the combined annual meetings of the Center for International Blood & Marrow Transplant Research and the American Society for Blood and Marrow Transplantation.
Presenting the findings at a late-breaking abstract session, Dr. de la Serna said that for the 1,721 participants in a placebo-controlled multicenter trial who received both doses of the vaccine, the incidence of HZ for vaccine recipients was 3.0%, compared with 9.4% of placebo recipients, for a vaccine efficacy of 68.2% (95% confidence interval, 55.6-77.5; P less than 0.0001). These results met the study’s primary objective.
Postherpetic neuralgia (PHN) prevention efficacy – a secondary endpoint – was 89.3% for those receiving the vaccine (HZ/su); the incidence of PHN was 0.5% in the HZ/su study arm, compared with 4.9% for those who received placebo (95% CI, 22.5-99.8). The study also tracked other HZ complications as a secondary endpoint, finding efficacy of 77.8% (95% CI, 19.1–95.0). “The vaccine was highly efficacious in preventing all the secondary outcomes,” said Dr. de la Serna of the Hospital Universitario 12 de Octubre, Madrid.
The randomized, observer-blind phase 3 trial was conducted in 28 countries.Adults who received autologous HSCT were randomized 1:1 to receive HZ/su (n = 922) or placebo (n = 924) within 50-70 days of their transplant. Patients were excluded if they were expected to receive more than 6 months of anti–varicella zoster prophylaxis posttransplant, Dr. de la Serna said.
Participants received the first dose of HZ/su at the first study visit, and the second dose 30-60 days later. Patients were seen 1 month after the last vaccine dose, and then again at months 13 and 25, with telephone follow-up between the later visits. All participants were followed for at least 1 year, Dr. de la Serna said.
Episodes of HZ were confirmed by polymerase chain reaction assay, or, when samples were lacking or indeterminate, by agreement of at least three members of an ascertainment committee.
Of the two components of the HZ/su vaccine, glycoprotein E triggers both humoral immunity and activity of varicella zoster–specific CD4+ T cells; the adjuvant system – dubbed ASO1 – boosts immune response. The vaccine was approved by the Food and Drug Administration in October 2017 for use in adults aged 50 years and older.
In addition to the primary endpoint of vaccine efficacy in prevention of HZ cases during the study period, secondary objectives included monitoring vaccine reactogenicity and safety, and evaluating vaccine efficacy for the prevention of PHN and other complications of HZ.
Tertiary objectives included vaccine efficacy in preventing HZ during the first year posttransplant (vaccine efficacy 84.7%; 95% CI, 32.2-96.6), as well as efficacy in preventing hospitalizations related to HZ (vaccine efficacy 76.2%, 95% CI 61.1-86.0).
An exploratory analysis found vaccine efficacy of 71.8% for participants younger than 50 years (95% CI, 38.8 – 88.3). For patients aged 50 years and older, vaccine efficacy was 67.3% (95% CI, 52.6–77.9).
The safety of HZ/su was determined by analyzing data for all participants, but efficacy data included only those who received the second dose and did not develop HZ within a month of receiving the second vaccine dose.
In the efficacy group (n = 1,721), patients were mostly (n = 1,296) aged 50 years or older. Most patients (n = 937) received HSCT for multiple myeloma. Overall, participants were about 63% male, and 77% were of Caucasian/European ancestry.
Adverse events, solicited for the first 7 days after injections, were mostly mild and related to the local site pain and inflammation expected with an adjuvanted vaccine; HZ/su recipients also experienced more fatigue and muscle aches than did those receiving placebo. Median duration of symptoms was up to 3 days, with grade 3 events lasting up to 2 days.
Unsolicited and serious adverse events were similar between study arms, with a median safety follow-up period of 29 months. The investigators judged that no deaths were related to the vaccine, and there were no signals for increased rate of relapse or immune-mediated diseases.
The study was funded by GlaxoSmithKline; HZ/su(Shingrix) is marketed by GlaxoSmithKline. Dr. de la Serna reported being on the advisory board or receiving honoraria from multiple pharmaceutical companies.
SOURCE: de la Serna J et al. 2018 BMT Tandem Meetings, Abstract LBA2.
SALT LAKE CITY – A recently approved adjuvanted herpes zoster vaccine)(Shingrix) effectively and safely prevented herpes zoster in a population of patients with multiple myeloma and other hematologic malignancies who received autologous hematopoietic stem cell transplantation.
The use of recombinant varicella zoster virus glycoprotein E in combination with an adjuvant system gives immunosuppressed individuals who have received hematopoietic stem cell transplantation (HSCT) a safe option for prevention of herpes zoster (HZ), said Javier de la Serna, MD, PhD, speaking at the combined annual meetings of the Center for International Blood & Marrow Transplant Research and the American Society for Blood and Marrow Transplantation.
Presenting the findings at a late-breaking abstract session, Dr. de la Serna said that for the 1,721 participants in a placebo-controlled multicenter trial who received both doses of the vaccine, the incidence of HZ for vaccine recipients was 3.0%, compared with 9.4% of placebo recipients, for a vaccine efficacy of 68.2% (95% confidence interval, 55.6-77.5; P less than 0.0001). These results met the study’s primary objective.
Postherpetic neuralgia (PHN) prevention efficacy – a secondary endpoint – was 89.3% for those receiving the vaccine (HZ/su); the incidence of PHN was 0.5% in the HZ/su study arm, compared with 4.9% for those who received placebo (95% CI, 22.5-99.8). The study also tracked other HZ complications as a secondary endpoint, finding efficacy of 77.8% (95% CI, 19.1–95.0). “The vaccine was highly efficacious in preventing all the secondary outcomes,” said Dr. de la Serna of the Hospital Universitario 12 de Octubre, Madrid.
The randomized, observer-blind phase 3 trial was conducted in 28 countries.Adults who received autologous HSCT were randomized 1:1 to receive HZ/su (n = 922) or placebo (n = 924) within 50-70 days of their transplant. Patients were excluded if they were expected to receive more than 6 months of anti–varicella zoster prophylaxis posttransplant, Dr. de la Serna said.
Participants received the first dose of HZ/su at the first study visit, and the second dose 30-60 days later. Patients were seen 1 month after the last vaccine dose, and then again at months 13 and 25, with telephone follow-up between the later visits. All participants were followed for at least 1 year, Dr. de la Serna said.
Episodes of HZ were confirmed by polymerase chain reaction assay, or, when samples were lacking or indeterminate, by agreement of at least three members of an ascertainment committee.
Of the two components of the HZ/su vaccine, glycoprotein E triggers both humoral immunity and activity of varicella zoster–specific CD4+ T cells; the adjuvant system – dubbed ASO1 – boosts immune response. The vaccine was approved by the Food and Drug Administration in October 2017 for use in adults aged 50 years and older.
In addition to the primary endpoint of vaccine efficacy in prevention of HZ cases during the study period, secondary objectives included monitoring vaccine reactogenicity and safety, and evaluating vaccine efficacy for the prevention of PHN and other complications of HZ.
Tertiary objectives included vaccine efficacy in preventing HZ during the first year posttransplant (vaccine efficacy 84.7%; 95% CI, 32.2-96.6), as well as efficacy in preventing hospitalizations related to HZ (vaccine efficacy 76.2%, 95% CI 61.1-86.0).
An exploratory analysis found vaccine efficacy of 71.8% for participants younger than 50 years (95% CI, 38.8 – 88.3). For patients aged 50 years and older, vaccine efficacy was 67.3% (95% CI, 52.6–77.9).
The safety of HZ/su was determined by analyzing data for all participants, but efficacy data included only those who received the second dose and did not develop HZ within a month of receiving the second vaccine dose.
In the efficacy group (n = 1,721), patients were mostly (n = 1,296) aged 50 years or older. Most patients (n = 937) received HSCT for multiple myeloma. Overall, participants were about 63% male, and 77% were of Caucasian/European ancestry.
Adverse events, solicited for the first 7 days after injections, were mostly mild and related to the local site pain and inflammation expected with an adjuvanted vaccine; HZ/su recipients also experienced more fatigue and muscle aches than did those receiving placebo. Median duration of symptoms was up to 3 days, with grade 3 events lasting up to 2 days.
Unsolicited and serious adverse events were similar between study arms, with a median safety follow-up period of 29 months. The investigators judged that no deaths were related to the vaccine, and there were no signals for increased rate of relapse or immune-mediated diseases.
The study was funded by GlaxoSmithKline; HZ/su(Shingrix) is marketed by GlaxoSmithKline. Dr. de la Serna reported being on the advisory board or receiving honoraria from multiple pharmaceutical companies.
SOURCE: de la Serna J et al. 2018 BMT Tandem Meetings, Abstract LBA2.
SALT LAKE CITY – A recently approved adjuvanted herpes zoster vaccine)(Shingrix) effectively and safely prevented herpes zoster in a population of patients with multiple myeloma and other hematologic malignancies who received autologous hematopoietic stem cell transplantation.
The use of recombinant varicella zoster virus glycoprotein E in combination with an adjuvant system gives immunosuppressed individuals who have received hematopoietic stem cell transplantation (HSCT) a safe option for prevention of herpes zoster (HZ), said Javier de la Serna, MD, PhD, speaking at the combined annual meetings of the Center for International Blood & Marrow Transplant Research and the American Society for Blood and Marrow Transplantation.
Presenting the findings at a late-breaking abstract session, Dr. de la Serna said that for the 1,721 participants in a placebo-controlled multicenter trial who received both doses of the vaccine, the incidence of HZ for vaccine recipients was 3.0%, compared with 9.4% of placebo recipients, for a vaccine efficacy of 68.2% (95% confidence interval, 55.6-77.5; P less than 0.0001). These results met the study’s primary objective.
Postherpetic neuralgia (PHN) prevention efficacy – a secondary endpoint – was 89.3% for those receiving the vaccine (HZ/su); the incidence of PHN was 0.5% in the HZ/su study arm, compared with 4.9% for those who received placebo (95% CI, 22.5-99.8). The study also tracked other HZ complications as a secondary endpoint, finding efficacy of 77.8% (95% CI, 19.1–95.0). “The vaccine was highly efficacious in preventing all the secondary outcomes,” said Dr. de la Serna of the Hospital Universitario 12 de Octubre, Madrid.
The randomized, observer-blind phase 3 trial was conducted in 28 countries.Adults who received autologous HSCT were randomized 1:1 to receive HZ/su (n = 922) or placebo (n = 924) within 50-70 days of their transplant. Patients were excluded if they were expected to receive more than 6 months of anti–varicella zoster prophylaxis posttransplant, Dr. de la Serna said.
Participants received the first dose of HZ/su at the first study visit, and the second dose 30-60 days later. Patients were seen 1 month after the last vaccine dose, and then again at months 13 and 25, with telephone follow-up between the later visits. All participants were followed for at least 1 year, Dr. de la Serna said.
Episodes of HZ were confirmed by polymerase chain reaction assay, or, when samples were lacking or indeterminate, by agreement of at least three members of an ascertainment committee.
Of the two components of the HZ/su vaccine, glycoprotein E triggers both humoral immunity and activity of varicella zoster–specific CD4+ T cells; the adjuvant system – dubbed ASO1 – boosts immune response. The vaccine was approved by the Food and Drug Administration in October 2017 for use in adults aged 50 years and older.
In addition to the primary endpoint of vaccine efficacy in prevention of HZ cases during the study period, secondary objectives included monitoring vaccine reactogenicity and safety, and evaluating vaccine efficacy for the prevention of PHN and other complications of HZ.
Tertiary objectives included vaccine efficacy in preventing HZ during the first year posttransplant (vaccine efficacy 84.7%; 95% CI, 32.2-96.6), as well as efficacy in preventing hospitalizations related to HZ (vaccine efficacy 76.2%, 95% CI 61.1-86.0).
An exploratory analysis found vaccine efficacy of 71.8% for participants younger than 50 years (95% CI, 38.8 – 88.3). For patients aged 50 years and older, vaccine efficacy was 67.3% (95% CI, 52.6–77.9).
The safety of HZ/su was determined by analyzing data for all participants, but efficacy data included only those who received the second dose and did not develop HZ within a month of receiving the second vaccine dose.
In the efficacy group (n = 1,721), patients were mostly (n = 1,296) aged 50 years or older. Most patients (n = 937) received HSCT for multiple myeloma. Overall, participants were about 63% male, and 77% were of Caucasian/European ancestry.
Adverse events, solicited for the first 7 days after injections, were mostly mild and related to the local site pain and inflammation expected with an adjuvanted vaccine; HZ/su recipients also experienced more fatigue and muscle aches than did those receiving placebo. Median duration of symptoms was up to 3 days, with grade 3 events lasting up to 2 days.
Unsolicited and serious adverse events were similar between study arms, with a median safety follow-up period of 29 months. The investigators judged that no deaths were related to the vaccine, and there were no signals for increased rate of relapse or immune-mediated diseases.
The study was funded by GlaxoSmithKline; HZ/su(Shingrix) is marketed by GlaxoSmithKline. Dr. de la Serna reported being on the advisory board or receiving honoraria from multiple pharmaceutical companies.
SOURCE: de la Serna J et al. 2018 BMT Tandem Meetings, Abstract LBA2.
REPORTING FROM THE 2018 BMT TANDEM MEETINGS
Key clinical point:
Major finding: Efficacy was 68.17% for preventing herpes zoster among HSCT recipients.
Study details: A randomized, observer blind, placebo-controlled phase 3 study of 1,846 post-HSCT recipients.
Disclosures: The study was sponsored by GlaxoSmithKline. Dr. de la Serna reported relationships with multiple pharmaceutical companies.
Source: de la Serna J et al. 2018 BMT Tandem Meetings, Abstract LBA2.
Drug approved to treat newly diagnosed MM in China
The China Food and Drug Administration (CFDA) has approved lenalidomide (Revlimid®) to treat patients with newly diagnosed multiple myeloma (MM).
The drug is now approved for use in combination with dexamethasone to treat adults with previously untreated MM who are not eligible for transplant.
Lenalidomide was first approved by the CFDA in 2013 for use in combination with dexamethasone to treat adults with MM who had received at least one prior therapy.
“In China, where the incidence of multiple myeloma is on the rise due to an aging population and improved diagnosis, we are hopeful that newly diagnosed patients will have a meaningful long-term benefit from this approval,” said John V. Oyler, founder, chief executive officer, and chairman of BeiGene, the company marketing lenalidomide as Revlimid in China under an exclusive license from Celgene Corporation.
Trial results
The CFDA’s decision to expand the approval of lenalidomide is based on results from the phase 3 FIRST trial. Updated results from this study were published in the Journal of Clinical Oncology in November 2016.
The trial included 1623 patients with newly diagnosed MM who were not eligible for stem cell transplant.
Patients were randomized to receive:
- Lenalidomide and low-dose dexamethasone (Rd) in 28-day cycles until disease progression (n=535), known as the “continuous Rd group”
- 18 cycles of Rd (Rd18) for 72 weeks (n=541), known as the “Rd18 group”
- Melphalan, prednisone, and thalidomide (MPT) for 72 weeks (n=547).
In the intent-to-treat population, the overall response rate was 81% for the continuous Rd group, 79% for the Rd18 group, and 67% in the MPT group. The complete response rates were 21%, 20%, and 12%, respectively.
The median progression-free survival was 26.0 months in the continuous Rd group, 21.0 months in the Rd18 group, and 21.9 months in the MPT group. At 4 years, progression-free survival rates were 33%, 14%, and 13%, respectively.
The median overall survival was 58.9 months in the continuous Rd group, 56.7 months in the Rd18 group, and 48.5 months in the MPT group. At 4 years, overall survival rates were 60%, 57%, and 51%, respectively.
The most frequent grade 3/4 hematologic treatment-emergent adverse events were neutropenia and anemia. The rate of grade 3/4 neutropenia was higher in the MPT group than the continuous Rd or Rd18 groups.
Infections were the most common grade 3/4 non-hematologic treatment-emergent adverse events. The rate of grade 3/4 infections was higher in the Rd groups than the MPT group.
The China Food and Drug Administration (CFDA) has approved lenalidomide (Revlimid®) to treat patients with newly diagnosed multiple myeloma (MM).
The drug is now approved for use in combination with dexamethasone to treat adults with previously untreated MM who are not eligible for transplant.
Lenalidomide was first approved by the CFDA in 2013 for use in combination with dexamethasone to treat adults with MM who had received at least one prior therapy.
“In China, where the incidence of multiple myeloma is on the rise due to an aging population and improved diagnosis, we are hopeful that newly diagnosed patients will have a meaningful long-term benefit from this approval,” said John V. Oyler, founder, chief executive officer, and chairman of BeiGene, the company marketing lenalidomide as Revlimid in China under an exclusive license from Celgene Corporation.
Trial results
The CFDA’s decision to expand the approval of lenalidomide is based on results from the phase 3 FIRST trial. Updated results from this study were published in the Journal of Clinical Oncology in November 2016.
The trial included 1623 patients with newly diagnosed MM who were not eligible for stem cell transplant.
Patients were randomized to receive:
- Lenalidomide and low-dose dexamethasone (Rd) in 28-day cycles until disease progression (n=535), known as the “continuous Rd group”
- 18 cycles of Rd (Rd18) for 72 weeks (n=541), known as the “Rd18 group”
- Melphalan, prednisone, and thalidomide (MPT) for 72 weeks (n=547).
In the intent-to-treat population, the overall response rate was 81% for the continuous Rd group, 79% for the Rd18 group, and 67% in the MPT group. The complete response rates were 21%, 20%, and 12%, respectively.
The median progression-free survival was 26.0 months in the continuous Rd group, 21.0 months in the Rd18 group, and 21.9 months in the MPT group. At 4 years, progression-free survival rates were 33%, 14%, and 13%, respectively.
The median overall survival was 58.9 months in the continuous Rd group, 56.7 months in the Rd18 group, and 48.5 months in the MPT group. At 4 years, overall survival rates were 60%, 57%, and 51%, respectively.
The most frequent grade 3/4 hematologic treatment-emergent adverse events were neutropenia and anemia. The rate of grade 3/4 neutropenia was higher in the MPT group than the continuous Rd or Rd18 groups.
Infections were the most common grade 3/4 non-hematologic treatment-emergent adverse events. The rate of grade 3/4 infections was higher in the Rd groups than the MPT group.
The China Food and Drug Administration (CFDA) has approved lenalidomide (Revlimid®) to treat patients with newly diagnosed multiple myeloma (MM).
The drug is now approved for use in combination with dexamethasone to treat adults with previously untreated MM who are not eligible for transplant.
Lenalidomide was first approved by the CFDA in 2013 for use in combination with dexamethasone to treat adults with MM who had received at least one prior therapy.
“In China, where the incidence of multiple myeloma is on the rise due to an aging population and improved diagnosis, we are hopeful that newly diagnosed patients will have a meaningful long-term benefit from this approval,” said John V. Oyler, founder, chief executive officer, and chairman of BeiGene, the company marketing lenalidomide as Revlimid in China under an exclusive license from Celgene Corporation.
Trial results
The CFDA’s decision to expand the approval of lenalidomide is based on results from the phase 3 FIRST trial. Updated results from this study were published in the Journal of Clinical Oncology in November 2016.
The trial included 1623 patients with newly diagnosed MM who were not eligible for stem cell transplant.
Patients were randomized to receive:
- Lenalidomide and low-dose dexamethasone (Rd) in 28-day cycles until disease progression (n=535), known as the “continuous Rd group”
- 18 cycles of Rd (Rd18) for 72 weeks (n=541), known as the “Rd18 group”
- Melphalan, prednisone, and thalidomide (MPT) for 72 weeks (n=547).
In the intent-to-treat population, the overall response rate was 81% for the continuous Rd group, 79% for the Rd18 group, and 67% in the MPT group. The complete response rates were 21%, 20%, and 12%, respectively.
The median progression-free survival was 26.0 months in the continuous Rd group, 21.0 months in the Rd18 group, and 21.9 months in the MPT group. At 4 years, progression-free survival rates were 33%, 14%, and 13%, respectively.
The median overall survival was 58.9 months in the continuous Rd group, 56.7 months in the Rd18 group, and 48.5 months in the MPT group. At 4 years, overall survival rates were 60%, 57%, and 51%, respectively.
The most frequent grade 3/4 hematologic treatment-emergent adverse events were neutropenia and anemia. The rate of grade 3/4 neutropenia was higher in the MPT group than the continuous Rd or Rd18 groups.
Infections were the most common grade 3/4 non-hematologic treatment-emergent adverse events. The rate of grade 3/4 infections was higher in the Rd groups than the MPT group.
Export protein inhibitor shows activity against refractory myeloma
Think of it as a biological nuclear export ban: A combination of the nuclear export protein inhibitor selinexor and dexamethasone was associated with relatively good objective response rates and clinical benefit rates among some patients with relapsed or refractory multiple myeloma (MM).
In the dose-expansion portion of a phase 1 dose-finding trial, the objective response rate (ORR) among 12 patients treated with selinexor 45 mg/m2 and 20 mg dexamethasone twice weekly was 50%, and the clinical benefit rate – a composite of complete responses, very good partial responses, partial responses and minimal responses – was 58%, reported Christine Chen, MD, of Princess Margaret Cancer Centre in Toronto, and her colleagues.
“Selinexor is an oral agent with a completely novel mechanism of action and anti-MM activity in combination with dexamethasone that could provide a new option for patients suffering from this incurable disease,” wrote Dr. Chen and her colleagues. The report was published in Blood.
Selinexor is a selective oral inhibitor of the cellular nuclear export protein exportin 1 (XPO1). Inhibition of this protein causes tumor suppressor proteins to accumulate in the nuclei of malignant cells, leading to programmed cell death (apoptosis) of malignant cells, but with minimal effects on normal cells.
The study, performed in centers in Canada, the United States, and Denmark, was designed primarily to identify the recommended dose of oral selinexor for phase 2 trials, with or without corticosteroids.
A total of 84 patients were enrolled, including 22 with MM and 3 with Waldenstrom macroglobulinemia in the dose-escalation phase, and 59 with MM in the dose expansion phase.
In the dose-expansion phase, patients were treated with one of two dosing schemes: either selinexor at a dose of 45 or 60 mg/m2 plus dexamethasone 20 mg twice weekly in 28-day cycles, or selinexor in a 40 mg or 60 mg flat dose without corticosteroids in 21-day cycles.
As a single agent, selinexor showed minimal activity, with an ORR of 4%, and clinical benefit rate of 21% in 57 patients.
Among 12 patients assigned to the 45 mg/m2 selinexor dose plus dexamethasone, the ORR was 50%, consisting of one complete response and five partial responses. In addition, one patient at this dose level had a minimal response, three had stable disease, one had disease progression, and one was withdrawn from the study before disease assessment, with no evidence of progression.
There were no objective responses in the 60-mg/m2 selinexor dose group.
Among all 84 patients enrolled, the ORR with selinexor alone or in combination was 10%, and the clinical benefit rate was 25%. Of the patients with Waldenstrom macroglobulinemia, one had a partial response and one had a minimal response.
In the safety analysis, which included all patients who received at least one dose of selinexor, the most common grade 3 or 4 adverse events included thrombocytopenia in 45% of patients, hyponatremia in 26% of patients, and anemia and neutropenia in 23% each.
The most common nonhematologic adverse events – primarily grade 1 or 2 – included nausea, fatigue, anorexia, vomiting, and weight loss and diarrhea.
The combination of selinexor and dexamethasone is currently being investigated in the phase 2 Selinexor Treatment of Refractory Myeloma study, in combination with standard multiple myeloma therapies in the STOMP trial (Selinexor and Backbone Treatments of Multiple Myeloma Patients), and with bortezomib in the BOSTON trial (Bortezomib, Selinexor and Dexamethasone in Patients with Multiple Myeloma).
Dr. Chen reported no conflicts of interest. Her coauthors reported financial ties to Karyopharm Therapeutics, which funded the study.
SOURCE: Chen C et al. Blood. 2018;131(8):855-63.
Think of it as a biological nuclear export ban: A combination of the nuclear export protein inhibitor selinexor and dexamethasone was associated with relatively good objective response rates and clinical benefit rates among some patients with relapsed or refractory multiple myeloma (MM).
In the dose-expansion portion of a phase 1 dose-finding trial, the objective response rate (ORR) among 12 patients treated with selinexor 45 mg/m2 and 20 mg dexamethasone twice weekly was 50%, and the clinical benefit rate – a composite of complete responses, very good partial responses, partial responses and minimal responses – was 58%, reported Christine Chen, MD, of Princess Margaret Cancer Centre in Toronto, and her colleagues.
“Selinexor is an oral agent with a completely novel mechanism of action and anti-MM activity in combination with dexamethasone that could provide a new option for patients suffering from this incurable disease,” wrote Dr. Chen and her colleagues. The report was published in Blood.
Selinexor is a selective oral inhibitor of the cellular nuclear export protein exportin 1 (XPO1). Inhibition of this protein causes tumor suppressor proteins to accumulate in the nuclei of malignant cells, leading to programmed cell death (apoptosis) of malignant cells, but with minimal effects on normal cells.
The study, performed in centers in Canada, the United States, and Denmark, was designed primarily to identify the recommended dose of oral selinexor for phase 2 trials, with or without corticosteroids.
A total of 84 patients were enrolled, including 22 with MM and 3 with Waldenstrom macroglobulinemia in the dose-escalation phase, and 59 with MM in the dose expansion phase.
In the dose-expansion phase, patients were treated with one of two dosing schemes: either selinexor at a dose of 45 or 60 mg/m2 plus dexamethasone 20 mg twice weekly in 28-day cycles, or selinexor in a 40 mg or 60 mg flat dose without corticosteroids in 21-day cycles.
As a single agent, selinexor showed minimal activity, with an ORR of 4%, and clinical benefit rate of 21% in 57 patients.
Among 12 patients assigned to the 45 mg/m2 selinexor dose plus dexamethasone, the ORR was 50%, consisting of one complete response and five partial responses. In addition, one patient at this dose level had a minimal response, three had stable disease, one had disease progression, and one was withdrawn from the study before disease assessment, with no evidence of progression.
There were no objective responses in the 60-mg/m2 selinexor dose group.
Among all 84 patients enrolled, the ORR with selinexor alone or in combination was 10%, and the clinical benefit rate was 25%. Of the patients with Waldenstrom macroglobulinemia, one had a partial response and one had a minimal response.
In the safety analysis, which included all patients who received at least one dose of selinexor, the most common grade 3 or 4 adverse events included thrombocytopenia in 45% of patients, hyponatremia in 26% of patients, and anemia and neutropenia in 23% each.
The most common nonhematologic adverse events – primarily grade 1 or 2 – included nausea, fatigue, anorexia, vomiting, and weight loss and diarrhea.
The combination of selinexor and dexamethasone is currently being investigated in the phase 2 Selinexor Treatment of Refractory Myeloma study, in combination with standard multiple myeloma therapies in the STOMP trial (Selinexor and Backbone Treatments of Multiple Myeloma Patients), and with bortezomib in the BOSTON trial (Bortezomib, Selinexor and Dexamethasone in Patients with Multiple Myeloma).
Dr. Chen reported no conflicts of interest. Her coauthors reported financial ties to Karyopharm Therapeutics, which funded the study.
SOURCE: Chen C et al. Blood. 2018;131(8):855-63.
Think of it as a biological nuclear export ban: A combination of the nuclear export protein inhibitor selinexor and dexamethasone was associated with relatively good objective response rates and clinical benefit rates among some patients with relapsed or refractory multiple myeloma (MM).
In the dose-expansion portion of a phase 1 dose-finding trial, the objective response rate (ORR) among 12 patients treated with selinexor 45 mg/m2 and 20 mg dexamethasone twice weekly was 50%, and the clinical benefit rate – a composite of complete responses, very good partial responses, partial responses and minimal responses – was 58%, reported Christine Chen, MD, of Princess Margaret Cancer Centre in Toronto, and her colleagues.
“Selinexor is an oral agent with a completely novel mechanism of action and anti-MM activity in combination with dexamethasone that could provide a new option for patients suffering from this incurable disease,” wrote Dr. Chen and her colleagues. The report was published in Blood.
Selinexor is a selective oral inhibitor of the cellular nuclear export protein exportin 1 (XPO1). Inhibition of this protein causes tumor suppressor proteins to accumulate in the nuclei of malignant cells, leading to programmed cell death (apoptosis) of malignant cells, but with minimal effects on normal cells.
The study, performed in centers in Canada, the United States, and Denmark, was designed primarily to identify the recommended dose of oral selinexor for phase 2 trials, with or without corticosteroids.
A total of 84 patients were enrolled, including 22 with MM and 3 with Waldenstrom macroglobulinemia in the dose-escalation phase, and 59 with MM in the dose expansion phase.
In the dose-expansion phase, patients were treated with one of two dosing schemes: either selinexor at a dose of 45 or 60 mg/m2 plus dexamethasone 20 mg twice weekly in 28-day cycles, or selinexor in a 40 mg or 60 mg flat dose without corticosteroids in 21-day cycles.
As a single agent, selinexor showed minimal activity, with an ORR of 4%, and clinical benefit rate of 21% in 57 patients.
Among 12 patients assigned to the 45 mg/m2 selinexor dose plus dexamethasone, the ORR was 50%, consisting of one complete response and five partial responses. In addition, one patient at this dose level had a minimal response, three had stable disease, one had disease progression, and one was withdrawn from the study before disease assessment, with no evidence of progression.
There were no objective responses in the 60-mg/m2 selinexor dose group.
Among all 84 patients enrolled, the ORR with selinexor alone or in combination was 10%, and the clinical benefit rate was 25%. Of the patients with Waldenstrom macroglobulinemia, one had a partial response and one had a minimal response.
In the safety analysis, which included all patients who received at least one dose of selinexor, the most common grade 3 or 4 adverse events included thrombocytopenia in 45% of patients, hyponatremia in 26% of patients, and anemia and neutropenia in 23% each.
The most common nonhematologic adverse events – primarily grade 1 or 2 – included nausea, fatigue, anorexia, vomiting, and weight loss and diarrhea.
The combination of selinexor and dexamethasone is currently being investigated in the phase 2 Selinexor Treatment of Refractory Myeloma study, in combination with standard multiple myeloma therapies in the STOMP trial (Selinexor and Backbone Treatments of Multiple Myeloma Patients), and with bortezomib in the BOSTON trial (Bortezomib, Selinexor and Dexamethasone in Patients with Multiple Myeloma).
Dr. Chen reported no conflicts of interest. Her coauthors reported financial ties to Karyopharm Therapeutics, which funded the study.
SOURCE: Chen C et al. Blood. 2018;131(8):855-63.
FROM BLOOD
Key clinical point:
Major finding: The objective response rate among 12 patients with multiple myeloma treated at a dose of 45 mg/m2 selinexor and 20 mg dexamethasone was 50%.
Data source: Phase 1 dose-escalation and expansion study of 81 patients with relapsed or refractory multiple myeloma and three patients with Waldenstrom macroglobulinemia.
Disclosures: Dr. Chen reported no conflicts of interest. Her coauthors reported financial ties to Karyopharm Therapeutics, which funded the study.
Source: Chen C et al. Blood. 2018;131(8):855-63.
CHMP supports approval of denosumab in MM
The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended expanding the current indication for denosumab (XGEVA®).
The CHMP said the drug should be approved for use in preventing skeletal related events (SREs) in adults with advanced malignancies involving bone, which includes multiple myeloma (MM).
Denosumab is currently approved in Europe to prevent SREs—defined as radiation to bone, pathologic fracture, surgery to bone, and spinal cord compression—in adults with bone metastases from solid tumors.
The drug is also approved for the treatment of adults and skeletally mature adolescents with giant cell tumor of bone that is unresectable or where surgical resection is likely to result in severe morbidity.
The CHMP’s opinion on expanding the indication for denosumab will be reviewed by the European Commission (EC).
If the EC agrees with the CHMP, the commission will grant a centralized marketing authorization that will be valid in the European Union. Norway, Iceland, and Liechtenstein will make corresponding decisions on the basis of the EC’s decision.
The EC typically makes a decision within 67 days of the CHMP’s recommendation.
The CHMP’s recommendation for denosumab is based on data from the ’482 study, which were recently published in The Lancet Oncology.
In this phase 3 trial, denosumab proved non-inferior to zoledronic acid for delaying SREs in patients with newly diagnosed MM and bone disease.
Researchers randomized 1718 patients to receive subcutaneous denosumab at 120 mg and intravenous placebo every 4 weeks (n=859) or intravenous zoledronic acid at 4 mg (adjusted for renal function at baseline) and subcutaneous placebo every 4 weeks (n=859). All patients also received investigators’ choice of first-line MM therapy.
The median time to first on-study SRE was 22.8 months for patients in the denosumab arm and 24 months for those in the zoledronic acid arm (hazard ratio=0.98; 95% confidence interval: 0.85-1.14; P non-inferiority=0.010).
There were fewer renal treatment-emergent adverse events in the denosumab arm than the zoledronic acid arm—10% and 17%, respectively.
But there were more hypocalcemia adverse events in the denosumab arm than the zoledronic acid arm—17% and 12%, respectively.
The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended expanding the current indication for denosumab (XGEVA®).
The CHMP said the drug should be approved for use in preventing skeletal related events (SREs) in adults with advanced malignancies involving bone, which includes multiple myeloma (MM).
Denosumab is currently approved in Europe to prevent SREs—defined as radiation to bone, pathologic fracture, surgery to bone, and spinal cord compression—in adults with bone metastases from solid tumors.
The drug is also approved for the treatment of adults and skeletally mature adolescents with giant cell tumor of bone that is unresectable or where surgical resection is likely to result in severe morbidity.
The CHMP’s opinion on expanding the indication for denosumab will be reviewed by the European Commission (EC).
If the EC agrees with the CHMP, the commission will grant a centralized marketing authorization that will be valid in the European Union. Norway, Iceland, and Liechtenstein will make corresponding decisions on the basis of the EC’s decision.
The EC typically makes a decision within 67 days of the CHMP’s recommendation.
The CHMP’s recommendation for denosumab is based on data from the ’482 study, which were recently published in The Lancet Oncology.
In this phase 3 trial, denosumab proved non-inferior to zoledronic acid for delaying SREs in patients with newly diagnosed MM and bone disease.
Researchers randomized 1718 patients to receive subcutaneous denosumab at 120 mg and intravenous placebo every 4 weeks (n=859) or intravenous zoledronic acid at 4 mg (adjusted for renal function at baseline) and subcutaneous placebo every 4 weeks (n=859). All patients also received investigators’ choice of first-line MM therapy.
The median time to first on-study SRE was 22.8 months for patients in the denosumab arm and 24 months for those in the zoledronic acid arm (hazard ratio=0.98; 95% confidence interval: 0.85-1.14; P non-inferiority=0.010).
There were fewer renal treatment-emergent adverse events in the denosumab arm than the zoledronic acid arm—10% and 17%, respectively.
But there were more hypocalcemia adverse events in the denosumab arm than the zoledronic acid arm—17% and 12%, respectively.
The European Medicines Agency’s Committee for Medicinal Products for Human Use (CHMP) has recommended expanding the current indication for denosumab (XGEVA®).
The CHMP said the drug should be approved for use in preventing skeletal related events (SREs) in adults with advanced malignancies involving bone, which includes multiple myeloma (MM).
Denosumab is currently approved in Europe to prevent SREs—defined as radiation to bone, pathologic fracture, surgery to bone, and spinal cord compression—in adults with bone metastases from solid tumors.
The drug is also approved for the treatment of adults and skeletally mature adolescents with giant cell tumor of bone that is unresectable or where surgical resection is likely to result in severe morbidity.
The CHMP’s opinion on expanding the indication for denosumab will be reviewed by the European Commission (EC).
If the EC agrees with the CHMP, the commission will grant a centralized marketing authorization that will be valid in the European Union. Norway, Iceland, and Liechtenstein will make corresponding decisions on the basis of the EC’s decision.
The EC typically makes a decision within 67 days of the CHMP’s recommendation.
The CHMP’s recommendation for denosumab is based on data from the ’482 study, which were recently published in The Lancet Oncology.
In this phase 3 trial, denosumab proved non-inferior to zoledronic acid for delaying SREs in patients with newly diagnosed MM and bone disease.
Researchers randomized 1718 patients to receive subcutaneous denosumab at 120 mg and intravenous placebo every 4 weeks (n=859) or intravenous zoledronic acid at 4 mg (adjusted for renal function at baseline) and subcutaneous placebo every 4 weeks (n=859). All patients also received investigators’ choice of first-line MM therapy.
The median time to first on-study SRE was 22.8 months for patients in the denosumab arm and 24 months for those in the zoledronic acid arm (hazard ratio=0.98; 95% confidence interval: 0.85-1.14; P non-inferiority=0.010).
There were fewer renal treatment-emergent adverse events in the denosumab arm than the zoledronic acid arm—10% and 17%, respectively.
But there were more hypocalcemia adverse events in the denosumab arm than the zoledronic acid arm—17% and 12%, respectively.
Regimen deemed ‘safe and feasible’ in MM
SALT LAKE CITY—A novel transplant regimen is “safe and feasible” for patients with multiple myeloma (MM), according to a presentation at the 2018 BMT Tandem Meetings.
Researchers conducted a phase 1 trial investigating the addition of elotuzumab and autologous peripheral blood mononuclear cell (PBMC) reconstitution to standard autologous hematopoietic stem cell transplant (ASCT) and lenalidomide maintenance in MM patients.
The regimen was considered well tolerated, as most adverse events (AEs) were grade 1 or 2.
The complete response (CR) rate was 40% at both 90 days and 1 year after ASCT.
Keren Osman, MD, of Mount Sinai Health System in New York, New York, reported these results as abstract 26.* This is an investigator-sponsored study, conducted in collaboration with Bristol Myers Squibb, the company marketing elotuzumab.
Dr Osman noted that elotuzumab is a humanized IgG1 monoclonal antibody targeting SLAMF7. The drug directly activates natural killer (NK) cells through the SLAMF7 pathway and Fc receptors. Elotuzumab also targets SLAMF7 on MM cells and facilitates interaction with NK cells to mediate the killing of MM cells through antibody-dependent cellular cytotoxicity.
“The hypothesis behind this phase 1 study was that . . ., in the peri-transplant period, if we add elotuzumab, we will succeed in promoting NK-mediated elimination of residual multiple myeloma cells as well as promote transition from innate to adaptive immune responses against multiple myeloma-associated antigens,” Dr Osman said.
She and her colleagues tested this hypothesis in 15 MM patients. They had a median age of 59 (range, 49-70), and 60% of them were male.
Forty percent of patients had stage I disease, 27% had stage II, and 20% had stage III. All patients had an ECOG status of 0 (47%) or 1 (53%).
The patients had a median of 174 days since diagnosis (range, 98-393).
All patients had received 1 to 2 prior lines of therapy. They all had bortezomib as part of their induction therapy, and 67% of them had received lenalidomide.
Seventy-three percent of patients had any cytogenetic abnormality, and 47% had high-risk cytogenetics.
Treatment
Patients underwent leukopheresis for PBMC collection, followed by standard peripheral blood stem cell mobilization and harvest.
They received standard melphalan conditioning on day -1 and autologous stem cell rescue on day 0. Autologous PBMCs were reinfused on day 3 after stem cell infusion.
Elotuzumab was given at 20 mg/kg intravenously on day 4. The drug was given every 28 days up to cycle 12.
Lenalidomide maintenance was given at 10 mg orally on days 1 to 21 of every 28-day cycle, starting with cycle 4 of elotuzumab (90 days post-ASCT). Maintenance could continue beyond cycle 12 at the investigators’ discretion.
Thirteen patients completed a year of treatment. One patient withdrew from the study due to early progression. The other patient withdrew due to personal choice and had a very good partial response (VGPR) at withdrawal.
Safety
“The majority of the adverse events, including infusion reactions attributable to elotuzumab, were grade 2 or lower,” Dr Osman noted. “And there were no AEs related to PBMC administration.”
One patient had a delay in hematopoietic reconstitution, which resulted in hospitalization exceeding 21 days.
One patient had grade 3 hypertension, which was attributed to elotuzumab and resolved with supportive care.
Eight patients had grade 3 lymphopenia, which was associated with elotuzumab, during the maintenance phase. Patients received prophylactic antibiotics, and there were no opportunistic infections.
Efficacy
At screening (after induction but before ASCT), 13 patients (87%) had a VGPR, and 2 (13%) had a partial response (PR).
At 90 days post-ASCT, 2 patients (13%) had a stringent CR, and 4 (27%) had a CR. Six patients (40%) had a VGPR, and 2 (13%) had a PR. One patient (7%) had progressed.
“In this very high-risk PR/VGPR population, stem cell transplant with elotuzumab and PBMC infusion resulted in a CR rate of 40%—with 13% of patients achieving stringent CR—by day 90,” Dr Osman noted. “And maintenance elotuzumab plus lenalidomide promoted further conversion to 33% stringent CR by 1 year.”
At 1 year, 5 patients (33%) had a stringent CR, and 1 (7%) had a CR. Six patients (40%) had a VGPR, and 1 (7%) had a PR. Two patients (13%) had progressed.
So the 1-year progression-free survival rate was 86% (13/15).
“In conclusion, we see that elotuzumab and PBMC administration with standard autologous stem cell transplant and lenalidomide maintenance for consolidation therapy in multiple myeloma is certainly both safe and feasible,” Dr Osman said. “We’re planning a phase 2 study.”
*Information in the abstract differs from the presentation.
SALT LAKE CITY—A novel transplant regimen is “safe and feasible” for patients with multiple myeloma (MM), according to a presentation at the 2018 BMT Tandem Meetings.
Researchers conducted a phase 1 trial investigating the addition of elotuzumab and autologous peripheral blood mononuclear cell (PBMC) reconstitution to standard autologous hematopoietic stem cell transplant (ASCT) and lenalidomide maintenance in MM patients.
The regimen was considered well tolerated, as most adverse events (AEs) were grade 1 or 2.
The complete response (CR) rate was 40% at both 90 days and 1 year after ASCT.
Keren Osman, MD, of Mount Sinai Health System in New York, New York, reported these results as abstract 26.* This is an investigator-sponsored study, conducted in collaboration with Bristol Myers Squibb, the company marketing elotuzumab.
Dr Osman noted that elotuzumab is a humanized IgG1 monoclonal antibody targeting SLAMF7. The drug directly activates natural killer (NK) cells through the SLAMF7 pathway and Fc receptors. Elotuzumab also targets SLAMF7 on MM cells and facilitates interaction with NK cells to mediate the killing of MM cells through antibody-dependent cellular cytotoxicity.
“The hypothesis behind this phase 1 study was that . . ., in the peri-transplant period, if we add elotuzumab, we will succeed in promoting NK-mediated elimination of residual multiple myeloma cells as well as promote transition from innate to adaptive immune responses against multiple myeloma-associated antigens,” Dr Osman said.
She and her colleagues tested this hypothesis in 15 MM patients. They had a median age of 59 (range, 49-70), and 60% of them were male.
Forty percent of patients had stage I disease, 27% had stage II, and 20% had stage III. All patients had an ECOG status of 0 (47%) or 1 (53%).
The patients had a median of 174 days since diagnosis (range, 98-393).
All patients had received 1 to 2 prior lines of therapy. They all had bortezomib as part of their induction therapy, and 67% of them had received lenalidomide.
Seventy-three percent of patients had any cytogenetic abnormality, and 47% had high-risk cytogenetics.
Treatment
Patients underwent leukopheresis for PBMC collection, followed by standard peripheral blood stem cell mobilization and harvest.
They received standard melphalan conditioning on day -1 and autologous stem cell rescue on day 0. Autologous PBMCs were reinfused on day 3 after stem cell infusion.
Elotuzumab was given at 20 mg/kg intravenously on day 4. The drug was given every 28 days up to cycle 12.
Lenalidomide maintenance was given at 10 mg orally on days 1 to 21 of every 28-day cycle, starting with cycle 4 of elotuzumab (90 days post-ASCT). Maintenance could continue beyond cycle 12 at the investigators’ discretion.
Thirteen patients completed a year of treatment. One patient withdrew from the study due to early progression. The other patient withdrew due to personal choice and had a very good partial response (VGPR) at withdrawal.
Safety
“The majority of the adverse events, including infusion reactions attributable to elotuzumab, were grade 2 or lower,” Dr Osman noted. “And there were no AEs related to PBMC administration.”
One patient had a delay in hematopoietic reconstitution, which resulted in hospitalization exceeding 21 days.
One patient had grade 3 hypertension, which was attributed to elotuzumab and resolved with supportive care.
Eight patients had grade 3 lymphopenia, which was associated with elotuzumab, during the maintenance phase. Patients received prophylactic antibiotics, and there were no opportunistic infections.
Efficacy
At screening (after induction but before ASCT), 13 patients (87%) had a VGPR, and 2 (13%) had a partial response (PR).
At 90 days post-ASCT, 2 patients (13%) had a stringent CR, and 4 (27%) had a CR. Six patients (40%) had a VGPR, and 2 (13%) had a PR. One patient (7%) had progressed.
“In this very high-risk PR/VGPR population, stem cell transplant with elotuzumab and PBMC infusion resulted in a CR rate of 40%—with 13% of patients achieving stringent CR—by day 90,” Dr Osman noted. “And maintenance elotuzumab plus lenalidomide promoted further conversion to 33% stringent CR by 1 year.”
At 1 year, 5 patients (33%) had a stringent CR, and 1 (7%) had a CR. Six patients (40%) had a VGPR, and 1 (7%) had a PR. Two patients (13%) had progressed.
So the 1-year progression-free survival rate was 86% (13/15).
“In conclusion, we see that elotuzumab and PBMC administration with standard autologous stem cell transplant and lenalidomide maintenance for consolidation therapy in multiple myeloma is certainly both safe and feasible,” Dr Osman said. “We’re planning a phase 2 study.”
*Information in the abstract differs from the presentation.
SALT LAKE CITY—A novel transplant regimen is “safe and feasible” for patients with multiple myeloma (MM), according to a presentation at the 2018 BMT Tandem Meetings.
Researchers conducted a phase 1 trial investigating the addition of elotuzumab and autologous peripheral blood mononuclear cell (PBMC) reconstitution to standard autologous hematopoietic stem cell transplant (ASCT) and lenalidomide maintenance in MM patients.
The regimen was considered well tolerated, as most adverse events (AEs) were grade 1 or 2.
The complete response (CR) rate was 40% at both 90 days and 1 year after ASCT.
Keren Osman, MD, of Mount Sinai Health System in New York, New York, reported these results as abstract 26.* This is an investigator-sponsored study, conducted in collaboration with Bristol Myers Squibb, the company marketing elotuzumab.
Dr Osman noted that elotuzumab is a humanized IgG1 monoclonal antibody targeting SLAMF7. The drug directly activates natural killer (NK) cells through the SLAMF7 pathway and Fc receptors. Elotuzumab also targets SLAMF7 on MM cells and facilitates interaction with NK cells to mediate the killing of MM cells through antibody-dependent cellular cytotoxicity.
“The hypothesis behind this phase 1 study was that . . ., in the peri-transplant period, if we add elotuzumab, we will succeed in promoting NK-mediated elimination of residual multiple myeloma cells as well as promote transition from innate to adaptive immune responses against multiple myeloma-associated antigens,” Dr Osman said.
She and her colleagues tested this hypothesis in 15 MM patients. They had a median age of 59 (range, 49-70), and 60% of them were male.
Forty percent of patients had stage I disease, 27% had stage II, and 20% had stage III. All patients had an ECOG status of 0 (47%) or 1 (53%).
The patients had a median of 174 days since diagnosis (range, 98-393).
All patients had received 1 to 2 prior lines of therapy. They all had bortezomib as part of their induction therapy, and 67% of them had received lenalidomide.
Seventy-three percent of patients had any cytogenetic abnormality, and 47% had high-risk cytogenetics.
Treatment
Patients underwent leukopheresis for PBMC collection, followed by standard peripheral blood stem cell mobilization and harvest.
They received standard melphalan conditioning on day -1 and autologous stem cell rescue on day 0. Autologous PBMCs were reinfused on day 3 after stem cell infusion.
Elotuzumab was given at 20 mg/kg intravenously on day 4. The drug was given every 28 days up to cycle 12.
Lenalidomide maintenance was given at 10 mg orally on days 1 to 21 of every 28-day cycle, starting with cycle 4 of elotuzumab (90 days post-ASCT). Maintenance could continue beyond cycle 12 at the investigators’ discretion.
Thirteen patients completed a year of treatment. One patient withdrew from the study due to early progression. The other patient withdrew due to personal choice and had a very good partial response (VGPR) at withdrawal.
Safety
“The majority of the adverse events, including infusion reactions attributable to elotuzumab, were grade 2 or lower,” Dr Osman noted. “And there were no AEs related to PBMC administration.”
One patient had a delay in hematopoietic reconstitution, which resulted in hospitalization exceeding 21 days.
One patient had grade 3 hypertension, which was attributed to elotuzumab and resolved with supportive care.
Eight patients had grade 3 lymphopenia, which was associated with elotuzumab, during the maintenance phase. Patients received prophylactic antibiotics, and there were no opportunistic infections.
Efficacy
At screening (after induction but before ASCT), 13 patients (87%) had a VGPR, and 2 (13%) had a partial response (PR).
At 90 days post-ASCT, 2 patients (13%) had a stringent CR, and 4 (27%) had a CR. Six patients (40%) had a VGPR, and 2 (13%) had a PR. One patient (7%) had progressed.
“In this very high-risk PR/VGPR population, stem cell transplant with elotuzumab and PBMC infusion resulted in a CR rate of 40%—with 13% of patients achieving stringent CR—by day 90,” Dr Osman noted. “And maintenance elotuzumab plus lenalidomide promoted further conversion to 33% stringent CR by 1 year.”
At 1 year, 5 patients (33%) had a stringent CR, and 1 (7%) had a CR. Six patients (40%) had a VGPR, and 1 (7%) had a PR. Two patients (13%) had progressed.
So the 1-year progression-free survival rate was 86% (13/15).
“In conclusion, we see that elotuzumab and PBMC administration with standard autologous stem cell transplant and lenalidomide maintenance for consolidation therapy in multiple myeloma is certainly both safe and feasible,” Dr Osman said. “We’re planning a phase 2 study.”
*Information in the abstract differs from the presentation.






