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Male contraceptive pill appears feasible in very early trials
ATLANTA – Potential once-daily male oral contraceptives have passed a first clinical hurdle, showing a degree of testosterone suppression that should be sufficient for a contraceptive effect without causing symptomatic hypogonadism, according to phase 1 study results to be presented at the annual meeting of the Endocrine Society.
Credit: Flickr/Marco Verch Professional Photographer/CC by 2.0
There are two pills in development and the studies so far suggest that both or a combination might be able to provide an acceptable balance of efficacy and tolerability, according to Tamar Jacobsohn, a researcher in the Contraceptive Development Program, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Md.
The two drugs evaluated in this study are dimethandrolone undecanoate (DMAU) and 11b-methyl-19-nortestosterone-17b-dodecylcarbonate (11b-MNTDC). Both are bifunctional prodrugs with androgenic and progestogenic effects. The prodrugs are designed to be cleaved after ingestion so that the active hormones are released over 24 hours, permitting once-daily dosing.
“As potent androgens, these steroids suppress gonadotropin secretion, leading to markedly decreased serum testosterone production,” explained Ms. Jacobsohn in an interview.
However, she noted that there is still a long way to go on this research path. While the phase 1 studies have shown tolerability, the biology involved in suppressing sperm production suggests that men would need to take these pills daily for about 3 months at the very beginning of contraceptive treatment, until adequate sperm suppression is achieved to prevent pregnancy.
“We are working toward a phase 2 trial that will include a contraceptive efficacy endpoint, but there are lots of steps to get there, including more early phase studies,” she noted.
“There is a huge unmet need in terms of male contraceptive methods,” said Arthi Thirumalai, MBBS, an endocrinologist and assistant professor of medicine at the University of Washington School of Medicine in Seattle.
Senior author of a 2020 review article on male contraception, Dr. Thirumalai said in an interview that prodrugs and other hormonal methods to lower testosterone and suppress sperm production are attractive because of convenience, efficacy, and reversibility,
“We hope that oral formulations can be used to address this need,” said Dr. Thirumalai, who has participated in several experimental and clinical studies of male contraception methods. She is, in fact, one of the many coauthors of the data presented by Ms. Jacobsohn.
Ms. Jacobsohn emphasized: “Development of an effective, reversible male contraceptive method will improve reproductive options for men and women, have a major impact on public health by decreasing unintended pregnancy, and allow men to have an increasingly active role in family planning.”
Phase 1 results with DMAU and MNTDC
The work that led to phase 1 studies suggested that each of the drugs — DMAU and MNTDC — might provide adequate hormone suppression to reduce sperm counts without inducing unacceptable symptoms of hypogonadism. To test this potential, dose-ranging phase 1 studies with an endpoint of testosterone suppression were conducted with each one.
In the two placebo-controlled phase 1a studies, which are to be presented in a poster on June 13, healthy male subjects were randomly assigned to two pills of active therapy, four pills of active therapy, or placebo. In the two studies combined, 39 subjects received DMAU, 30 received 11b-MNTDC, and 28 received placebo.
Efficacy was evaluated by measuring testosterone levels. Tolerability was largely based on patient questionnaires.
At the end of 7 days, testosterone levels remained at reference levels (400 to 600 ng/dL) in those who received placebo. The levels fell to less than 100 ng/dL in all subjects assigned to an active agent regardless of which agent or dose was used.
From day 7 to 28, there was less median suppression of testosterone on 200 mg than 400 mg daily (92.7 ng/dL vs. 49.6 ng/dL; P < .001), but both remained below the target of 100 ng/dL, Ms. Jacobsohn reported.
The difference in degree of testosterone suppression did not appear to influence tolerability.
Subjects on four vs. two daily pills “did not report a significant difference in general satisfaction or their willingness to use the pills in the future or recommend them to other men,” said Ms. Jacobson, presenting P values for these outcomes among subjects on active therapy relative to placebo that were not significant, ranging from 0.48 to 0.85.
Overall, there were no serious adverse events. Mild side effects associated with hypogonadism did occur, but “all resolved by the end of the study,” she said.
Zero sperm production is not the goal. Lowering it sufficiently is
Dr. Thirumalai said the need for a male contraceptive is strong. While condoms have a substantial failure rate, vasectomy is not reliably reversible even though the majority of men agree that the responsibility for preventing pregnancy should be shared, she said.
Dr. Thirumalai’s earlier review article found that clinical trials of hormonal suppression to provide male contraception have been conducted for at least 30 years. The challenge has been finding an effective therapy that is well tolerated.
Drugs that combine both androgenic and progestogenic activity might be the answer. By manipulating hormones that lower testosterone, sperm production is reduced without eliminating a man’s ability to ejaculate. Zero sperm production is not the goal, according to data in Dr. Thirumalai’s review article.
Rather, studies suggest that when ejaculate contains less than 1 million sperm per mL (levels typically range from 15 to 200 million sperm/mL), the antipregnancy efficacy is similar to that achieved with female oral contraceptives.
However, clinical trials to demonstrate that this can be achieved safely have yet to be conducted.
Ms. Jacobsohn said that sperm half-life is about 3 months. This means that patients would need to be on hormonal therapy for a period of about this duration before reliable contraception is achieved.
In other words, the efficacy endpoint used in this current study [of 28 days duration] does not ensure effective contraception, but Ms. Jacobsohn suggested this is nevertheless an important step forward in clinical development.
Ms. Jacobsohn and Dr. Thirumalai report no relevant financial relationships.
A version of this article first appeared on Medscape.com .
ATLANTA – Potential once-daily male oral contraceptives have passed a first clinical hurdle, showing a degree of testosterone suppression that should be sufficient for a contraceptive effect without causing symptomatic hypogonadism, according to phase 1 study results to be presented at the annual meeting of the Endocrine Society.
Credit: Flickr/Marco Verch Professional Photographer/CC by 2.0
There are two pills in development and the studies so far suggest that both or a combination might be able to provide an acceptable balance of efficacy and tolerability, according to Tamar Jacobsohn, a researcher in the Contraceptive Development Program, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Md.
The two drugs evaluated in this study are dimethandrolone undecanoate (DMAU) and 11b-methyl-19-nortestosterone-17b-dodecylcarbonate (11b-MNTDC). Both are bifunctional prodrugs with androgenic and progestogenic effects. The prodrugs are designed to be cleaved after ingestion so that the active hormones are released over 24 hours, permitting once-daily dosing.
“As potent androgens, these steroids suppress gonadotropin secretion, leading to markedly decreased serum testosterone production,” explained Ms. Jacobsohn in an interview.
However, she noted that there is still a long way to go on this research path. While the phase 1 studies have shown tolerability, the biology involved in suppressing sperm production suggests that men would need to take these pills daily for about 3 months at the very beginning of contraceptive treatment, until adequate sperm suppression is achieved to prevent pregnancy.
“We are working toward a phase 2 trial that will include a contraceptive efficacy endpoint, but there are lots of steps to get there, including more early phase studies,” she noted.
“There is a huge unmet need in terms of male contraceptive methods,” said Arthi Thirumalai, MBBS, an endocrinologist and assistant professor of medicine at the University of Washington School of Medicine in Seattle.
Senior author of a 2020 review article on male contraception, Dr. Thirumalai said in an interview that prodrugs and other hormonal methods to lower testosterone and suppress sperm production are attractive because of convenience, efficacy, and reversibility,
“We hope that oral formulations can be used to address this need,” said Dr. Thirumalai, who has participated in several experimental and clinical studies of male contraception methods. She is, in fact, one of the many coauthors of the data presented by Ms. Jacobsohn.
Ms. Jacobsohn emphasized: “Development of an effective, reversible male contraceptive method will improve reproductive options for men and women, have a major impact on public health by decreasing unintended pregnancy, and allow men to have an increasingly active role in family planning.”
Phase 1 results with DMAU and MNTDC
The work that led to phase 1 studies suggested that each of the drugs — DMAU and MNTDC — might provide adequate hormone suppression to reduce sperm counts without inducing unacceptable symptoms of hypogonadism. To test this potential, dose-ranging phase 1 studies with an endpoint of testosterone suppression were conducted with each one.
In the two placebo-controlled phase 1a studies, which are to be presented in a poster on June 13, healthy male subjects were randomly assigned to two pills of active therapy, four pills of active therapy, or placebo. In the two studies combined, 39 subjects received DMAU, 30 received 11b-MNTDC, and 28 received placebo.
Efficacy was evaluated by measuring testosterone levels. Tolerability was largely based on patient questionnaires.
At the end of 7 days, testosterone levels remained at reference levels (400 to 600 ng/dL) in those who received placebo. The levels fell to less than 100 ng/dL in all subjects assigned to an active agent regardless of which agent or dose was used.
From day 7 to 28, there was less median suppression of testosterone on 200 mg than 400 mg daily (92.7 ng/dL vs. 49.6 ng/dL; P < .001), but both remained below the target of 100 ng/dL, Ms. Jacobsohn reported.
The difference in degree of testosterone suppression did not appear to influence tolerability.
Subjects on four vs. two daily pills “did not report a significant difference in general satisfaction or their willingness to use the pills in the future or recommend them to other men,” said Ms. Jacobson, presenting P values for these outcomes among subjects on active therapy relative to placebo that were not significant, ranging from 0.48 to 0.85.
Overall, there were no serious adverse events. Mild side effects associated with hypogonadism did occur, but “all resolved by the end of the study,” she said.
Zero sperm production is not the goal. Lowering it sufficiently is
Dr. Thirumalai said the need for a male contraceptive is strong. While condoms have a substantial failure rate, vasectomy is not reliably reversible even though the majority of men agree that the responsibility for preventing pregnancy should be shared, she said.
Dr. Thirumalai’s earlier review article found that clinical trials of hormonal suppression to provide male contraception have been conducted for at least 30 years. The challenge has been finding an effective therapy that is well tolerated.
Drugs that combine both androgenic and progestogenic activity might be the answer. By manipulating hormones that lower testosterone, sperm production is reduced without eliminating a man’s ability to ejaculate. Zero sperm production is not the goal, according to data in Dr. Thirumalai’s review article.
Rather, studies suggest that when ejaculate contains less than 1 million sperm per mL (levels typically range from 15 to 200 million sperm/mL), the antipregnancy efficacy is similar to that achieved with female oral contraceptives.
However, clinical trials to demonstrate that this can be achieved safely have yet to be conducted.
Ms. Jacobsohn said that sperm half-life is about 3 months. This means that patients would need to be on hormonal therapy for a period of about this duration before reliable contraception is achieved.
In other words, the efficacy endpoint used in this current study [of 28 days duration] does not ensure effective contraception, but Ms. Jacobsohn suggested this is nevertheless an important step forward in clinical development.
Ms. Jacobsohn and Dr. Thirumalai report no relevant financial relationships.
A version of this article first appeared on Medscape.com .
ATLANTA – Potential once-daily male oral contraceptives have passed a first clinical hurdle, showing a degree of testosterone suppression that should be sufficient for a contraceptive effect without causing symptomatic hypogonadism, according to phase 1 study results to be presented at the annual meeting of the Endocrine Society.
Credit: Flickr/Marco Verch Professional Photographer/CC by 2.0
There are two pills in development and the studies so far suggest that both or a combination might be able to provide an acceptable balance of efficacy and tolerability, according to Tamar Jacobsohn, a researcher in the Contraceptive Development Program, Eunice Kennedy Shriver National Institute of Child Health and Human Development, Bethesda, Md.
The two drugs evaluated in this study are dimethandrolone undecanoate (DMAU) and 11b-methyl-19-nortestosterone-17b-dodecylcarbonate (11b-MNTDC). Both are bifunctional prodrugs with androgenic and progestogenic effects. The prodrugs are designed to be cleaved after ingestion so that the active hormones are released over 24 hours, permitting once-daily dosing.
“As potent androgens, these steroids suppress gonadotropin secretion, leading to markedly decreased serum testosterone production,” explained Ms. Jacobsohn in an interview.
However, she noted that there is still a long way to go on this research path. While the phase 1 studies have shown tolerability, the biology involved in suppressing sperm production suggests that men would need to take these pills daily for about 3 months at the very beginning of contraceptive treatment, until adequate sperm suppression is achieved to prevent pregnancy.
“We are working toward a phase 2 trial that will include a contraceptive efficacy endpoint, but there are lots of steps to get there, including more early phase studies,” she noted.
“There is a huge unmet need in terms of male contraceptive methods,” said Arthi Thirumalai, MBBS, an endocrinologist and assistant professor of medicine at the University of Washington School of Medicine in Seattle.
Senior author of a 2020 review article on male contraception, Dr. Thirumalai said in an interview that prodrugs and other hormonal methods to lower testosterone and suppress sperm production are attractive because of convenience, efficacy, and reversibility,
“We hope that oral formulations can be used to address this need,” said Dr. Thirumalai, who has participated in several experimental and clinical studies of male contraception methods. She is, in fact, one of the many coauthors of the data presented by Ms. Jacobsohn.
Ms. Jacobsohn emphasized: “Development of an effective, reversible male contraceptive method will improve reproductive options for men and women, have a major impact on public health by decreasing unintended pregnancy, and allow men to have an increasingly active role in family planning.”
Phase 1 results with DMAU and MNTDC
The work that led to phase 1 studies suggested that each of the drugs — DMAU and MNTDC — might provide adequate hormone suppression to reduce sperm counts without inducing unacceptable symptoms of hypogonadism. To test this potential, dose-ranging phase 1 studies with an endpoint of testosterone suppression were conducted with each one.
In the two placebo-controlled phase 1a studies, which are to be presented in a poster on June 13, healthy male subjects were randomly assigned to two pills of active therapy, four pills of active therapy, or placebo. In the two studies combined, 39 subjects received DMAU, 30 received 11b-MNTDC, and 28 received placebo.
Efficacy was evaluated by measuring testosterone levels. Tolerability was largely based on patient questionnaires.
At the end of 7 days, testosterone levels remained at reference levels (400 to 600 ng/dL) in those who received placebo. The levels fell to less than 100 ng/dL in all subjects assigned to an active agent regardless of which agent or dose was used.
From day 7 to 28, there was less median suppression of testosterone on 200 mg than 400 mg daily (92.7 ng/dL vs. 49.6 ng/dL; P < .001), but both remained below the target of 100 ng/dL, Ms. Jacobsohn reported.
The difference in degree of testosterone suppression did not appear to influence tolerability.
Subjects on four vs. two daily pills “did not report a significant difference in general satisfaction or their willingness to use the pills in the future or recommend them to other men,” said Ms. Jacobson, presenting P values for these outcomes among subjects on active therapy relative to placebo that were not significant, ranging from 0.48 to 0.85.
Overall, there were no serious adverse events. Mild side effects associated with hypogonadism did occur, but “all resolved by the end of the study,” she said.
Zero sperm production is not the goal. Lowering it sufficiently is
Dr. Thirumalai said the need for a male contraceptive is strong. While condoms have a substantial failure rate, vasectomy is not reliably reversible even though the majority of men agree that the responsibility for preventing pregnancy should be shared, she said.
Dr. Thirumalai’s earlier review article found that clinical trials of hormonal suppression to provide male contraception have been conducted for at least 30 years. The challenge has been finding an effective therapy that is well tolerated.
Drugs that combine both androgenic and progestogenic activity might be the answer. By manipulating hormones that lower testosterone, sperm production is reduced without eliminating a man’s ability to ejaculate. Zero sperm production is not the goal, according to data in Dr. Thirumalai’s review article.
Rather, studies suggest that when ejaculate contains less than 1 million sperm per mL (levels typically range from 15 to 200 million sperm/mL), the antipregnancy efficacy is similar to that achieved with female oral contraceptives.
However, clinical trials to demonstrate that this can be achieved safely have yet to be conducted.
Ms. Jacobsohn said that sperm half-life is about 3 months. This means that patients would need to be on hormonal therapy for a period of about this duration before reliable contraception is achieved.
In other words, the efficacy endpoint used in this current study [of 28 days duration] does not ensure effective contraception, but Ms. Jacobsohn suggested this is nevertheless an important step forward in clinical development.
Ms. Jacobsohn and Dr. Thirumalai report no relevant financial relationships.
A version of this article first appeared on Medscape.com .
AT ENDO 2022
Jury still out on cardiovascular safety of testosterone
Despite a new meta-analysis claiming to show that testosterone replacement therapy for men with hypogonadism does not increase the risk of cardiovascular outcomes such as myocardial infarction or stroke, experts say the jury is still out.
A more definitive answer for cardiovascular safety of testosterone therapy will come from the TRAVERSE dedicated cardiovascular outcome trial, sponsored by AbbVie, which will have up to 5 years of follow-up, with results expected later this year.
The current meta-analysis by Jemma Hudson of Aberdeen (Scotland) University and colleagues was published online in The Lancet Healthy Longevity. The work will also be presented June 13 at ENDO 2022, the Endocrine Society’s annual meeting in Atlanta, Georgia, by senior author Channa Y. Jayasena, MD, PhD.
In 2014, the U.S. Food and Drug Administration mandated a label on testosterone products warning of possible increased cardiovascular risks and to reserve the therapy for symptomatic hypogonadism only. In contrast, the European Medicines Agency concluded that when hypogonadism is properly diagnosed and managed, there is currently no clear, consistent evidence that testosterone therapy causes increased cardiovascular risk.
To address this uncertainty, Dr. Hudson and colleagues formed a global collaborative to obtain individual patient data on cardiovascular outcomes from randomized controlled trials of testosterone therapy for men with hypogonadism.
They pooled data from 35 trials published from 1992 to Aug. 27, 2018, including 17 trials (3,431 patients) for which the researchers obtained patient-level data. The individual trials were 3-12 months long, except for one 3-year trial.
During a mean follow-up of 9.5 months, there was no significant increase in cardiovascular outcomes in men randomized to testosterone therapy versus placebo (odds ratio, 1.07; P = .62), nor were there any significantly increased risks of death, stroke, or different types of cardiovascular outcome, although those numbers were small.
This is “the most comprehensive study to date investigating the safety of testosterone treatment of hypogonadism,” according to the researchers. “The current results provide some reassurance about the short-term to medium-term safety of testosterone to treat male hypogonadism,” they conclude.
However, they also acknowledge that “long-term data are needed to fully evaluate the safety of testosterone.”
Erin D. Michos, MD, coauthor of an accompanying editorial, told this news organization, “This study doesn’t say to me that low testosterone necessarily needs to be treated. It’s still not indicated in people just for a low number [for blood testosterone] with less-severe symptoms. It really comes down to each individual person, how symptomatic they are, and their cardiovascular risk.”
‘Trial is not definitive’
Dr. Michos is not the only person to be skeptical. Together with Steven Nissen, MD, an investigator for the TRAVERSE trial, she agrees that this new evidence is not yet decisive, largely because the individual trials in the meta-analysis were short and not designed as cardiovascular outcome trials.
Dr. Nissen, a cardiologist at Cleveland Clinic, added that the individual trials were heterogeneous, with “very few real cardiovascular events,” so the meta-analysis “is not definitive,” he said in an interview.
While this meta-analysis “that pooled together a lot of smaller studies is reassuring that there’s no signal of harm, it’s really inconclusive because the follow-up was really short – a mean of only 9.5 months – and you really need a larger study with longer follow up to be more conclusive,” Dr. Michos noted.
“We should have more data soon” from TRAVERSE, said Dr. Michos, from the division of cardiology, Johns Hopkins University, Baltimore, who is not involved with that study.
Meanwhile, “I don’t think [this analysis] changes the current recommendations,” she said.
“We should continue to use caution as indicated by the FDA label and only use testosterone therapy selectively in people who have true symptoms of hypogonadism,” and be cautious about using it particularly in men at higher cardiovascular risk because of family history or known personal heart disease.
On the other hand, the meta-analysis did not show harm, she noted, “so we don’t necessarily need to pull patients off therapy if they are already taking it. But I wouldn’t right now just start new patients on it unless they had a strong indication.”
“Certainly, great caution is advised regarding the use of testosterone replacement therapy in people with established atherosclerosis due to the findings of plaque progression in the testosterone trials and the excess cardiovascular events observed in the TOM trial, write Dr. Michos and fellow editorialist Matthew J. Budoff, MD, of University of California, Los Angeles, in their editorial.
Earlier data inconclusive
Testosterone concentrations progressively decline in men with advancing age, at about 2% per year, Dr. Michos and Dr. Budoff write. In addition, men with obesity or with diabetes have low levels of testosterone, Dr. Michos noted.
Low testosterone blood levels have been associated with insulin resistance, inflammation, dyslipidemia, and atherosclerosis. Testosterone replacement therapy has been used to increase libido, improve erectile dysfunction, and boost energy levels, mood, and muscle strength.
But it is well known that testosterone increases hematocrit, which has the potential to increase the risk of venous thromboembolism.
Two large observational studies have reported increased risks of myocardial infarction, stroke, and death in men taking testosterone, compared with nonusers, but the study designs have been widely criticized, Dr. Hudson and coauthors say in their article.
A placebo-controlled trial was stopped early by its data- and safety-monitoring board following increased cardiovascular events in men aged 65 and older who received 6 months of testosterone. Other controlled trials have not observed these effects, but none was sufficiently powered.
Meta-analysis results
Dr. Hudson and colleagues performed a meta-analysis of 35 trials in 5,601 men aged 18 years and older with low baseline testosterone (≤ 350 nmol/dL) who had been randomized to testosterone replacement therapy or placebo for at least 3 months, for which there were data on mortality, stroke, and cardiovascular outcomes.
The men were a mean age of 65, had a mean body mass index of 30 kg/m2, and most (88%) were White. A quarter had angina, 8% had a previous myocardial infarction, and 27% had diabetes.
Cardiovascular and cerebrovascular outcomes were not primary outcomes.
During a mean follow-up of 9.5 months, in the 13 trials that provided this information, the rate of cardiovascular events was similar in the men who received testosterone (120/1,601, 7.5%) compared with those who received placebo (110/1,519, 7.2%).
In the 14 trials that provided this information, fewer deaths were reported during testosterone treatment (6/1,621, 0.4%) than during placebo treatment (12/1,537, 0.8%), but these numbers were too small to establish whether testosterone reduced mortality risk.
The most common cardiovascular events were arrhythmia, followed by coronary heart disease, heart failure, and myocardial infarction.
Patient age, baseline testosterone, smoking status, or diabetes status were not associated with cardiovascular risk.
The only detected adverse effects were edema and a modest lowering of HDL cholesterol.
“Men who develop sexual dysfunction, unexplained anemia, or osteoporosis should be tested for low testosterone,” senior author of the meta-analysis Dr. Jayasena said in an email to this news organization.
However, Dr. Jayasena added, “Mass screening for testosterone has no benefit in asymptomatic men.”
“Older men may still benefit from testosterone, but only if they have the clinical features [of hypogonadism] and low testosterone levels,” he concluded.
The current study is supported by the Health Technology Assessment program of the National Institute for Health Research. The TRAVERSE trial is sponsored by AbbVie. Dr. Jayasena has reported receiving research grants from LogixX Pharma. Dr. Hudson has reported no relevant financial relationships. Disclosures for the other authors are listed in the article. Dr. Michos has reported receiving support from the Amato Fund in Women’s Cardiovascular Health at Johns Hopkins School of Medicine and serving on medical advisory boards for Novartis, Esperion, Amarin, and AstraZeneca outside the submitted work. Dr. Budoff has reported receiving grant support from General Electric.
A version of this article first appeared on Medscape.com.
Despite a new meta-analysis claiming to show that testosterone replacement therapy for men with hypogonadism does not increase the risk of cardiovascular outcomes such as myocardial infarction or stroke, experts say the jury is still out.
A more definitive answer for cardiovascular safety of testosterone therapy will come from the TRAVERSE dedicated cardiovascular outcome trial, sponsored by AbbVie, which will have up to 5 years of follow-up, with results expected later this year.
The current meta-analysis by Jemma Hudson of Aberdeen (Scotland) University and colleagues was published online in The Lancet Healthy Longevity. The work will also be presented June 13 at ENDO 2022, the Endocrine Society’s annual meeting in Atlanta, Georgia, by senior author Channa Y. Jayasena, MD, PhD.
In 2014, the U.S. Food and Drug Administration mandated a label on testosterone products warning of possible increased cardiovascular risks and to reserve the therapy for symptomatic hypogonadism only. In contrast, the European Medicines Agency concluded that when hypogonadism is properly diagnosed and managed, there is currently no clear, consistent evidence that testosterone therapy causes increased cardiovascular risk.
To address this uncertainty, Dr. Hudson and colleagues formed a global collaborative to obtain individual patient data on cardiovascular outcomes from randomized controlled trials of testosterone therapy for men with hypogonadism.
They pooled data from 35 trials published from 1992 to Aug. 27, 2018, including 17 trials (3,431 patients) for which the researchers obtained patient-level data. The individual trials were 3-12 months long, except for one 3-year trial.
During a mean follow-up of 9.5 months, there was no significant increase in cardiovascular outcomes in men randomized to testosterone therapy versus placebo (odds ratio, 1.07; P = .62), nor were there any significantly increased risks of death, stroke, or different types of cardiovascular outcome, although those numbers were small.
This is “the most comprehensive study to date investigating the safety of testosterone treatment of hypogonadism,” according to the researchers. “The current results provide some reassurance about the short-term to medium-term safety of testosterone to treat male hypogonadism,” they conclude.
However, they also acknowledge that “long-term data are needed to fully evaluate the safety of testosterone.”
Erin D. Michos, MD, coauthor of an accompanying editorial, told this news organization, “This study doesn’t say to me that low testosterone necessarily needs to be treated. It’s still not indicated in people just for a low number [for blood testosterone] with less-severe symptoms. It really comes down to each individual person, how symptomatic they are, and their cardiovascular risk.”
‘Trial is not definitive’
Dr. Michos is not the only person to be skeptical. Together with Steven Nissen, MD, an investigator for the TRAVERSE trial, she agrees that this new evidence is not yet decisive, largely because the individual trials in the meta-analysis were short and not designed as cardiovascular outcome trials.
Dr. Nissen, a cardiologist at Cleveland Clinic, added that the individual trials were heterogeneous, with “very few real cardiovascular events,” so the meta-analysis “is not definitive,” he said in an interview.
While this meta-analysis “that pooled together a lot of smaller studies is reassuring that there’s no signal of harm, it’s really inconclusive because the follow-up was really short – a mean of only 9.5 months – and you really need a larger study with longer follow up to be more conclusive,” Dr. Michos noted.
“We should have more data soon” from TRAVERSE, said Dr. Michos, from the division of cardiology, Johns Hopkins University, Baltimore, who is not involved with that study.
Meanwhile, “I don’t think [this analysis] changes the current recommendations,” she said.
“We should continue to use caution as indicated by the FDA label and only use testosterone therapy selectively in people who have true symptoms of hypogonadism,” and be cautious about using it particularly in men at higher cardiovascular risk because of family history or known personal heart disease.
On the other hand, the meta-analysis did not show harm, she noted, “so we don’t necessarily need to pull patients off therapy if they are already taking it. But I wouldn’t right now just start new patients on it unless they had a strong indication.”
“Certainly, great caution is advised regarding the use of testosterone replacement therapy in people with established atherosclerosis due to the findings of plaque progression in the testosterone trials and the excess cardiovascular events observed in the TOM trial, write Dr. Michos and fellow editorialist Matthew J. Budoff, MD, of University of California, Los Angeles, in their editorial.
Earlier data inconclusive
Testosterone concentrations progressively decline in men with advancing age, at about 2% per year, Dr. Michos and Dr. Budoff write. In addition, men with obesity or with diabetes have low levels of testosterone, Dr. Michos noted.
Low testosterone blood levels have been associated with insulin resistance, inflammation, dyslipidemia, and atherosclerosis. Testosterone replacement therapy has been used to increase libido, improve erectile dysfunction, and boost energy levels, mood, and muscle strength.
But it is well known that testosterone increases hematocrit, which has the potential to increase the risk of venous thromboembolism.
Two large observational studies have reported increased risks of myocardial infarction, stroke, and death in men taking testosterone, compared with nonusers, but the study designs have been widely criticized, Dr. Hudson and coauthors say in their article.
A placebo-controlled trial was stopped early by its data- and safety-monitoring board following increased cardiovascular events in men aged 65 and older who received 6 months of testosterone. Other controlled trials have not observed these effects, but none was sufficiently powered.
Meta-analysis results
Dr. Hudson and colleagues performed a meta-analysis of 35 trials in 5,601 men aged 18 years and older with low baseline testosterone (≤ 350 nmol/dL) who had been randomized to testosterone replacement therapy or placebo for at least 3 months, for which there were data on mortality, stroke, and cardiovascular outcomes.
The men were a mean age of 65, had a mean body mass index of 30 kg/m2, and most (88%) were White. A quarter had angina, 8% had a previous myocardial infarction, and 27% had diabetes.
Cardiovascular and cerebrovascular outcomes were not primary outcomes.
During a mean follow-up of 9.5 months, in the 13 trials that provided this information, the rate of cardiovascular events was similar in the men who received testosterone (120/1,601, 7.5%) compared with those who received placebo (110/1,519, 7.2%).
In the 14 trials that provided this information, fewer deaths were reported during testosterone treatment (6/1,621, 0.4%) than during placebo treatment (12/1,537, 0.8%), but these numbers were too small to establish whether testosterone reduced mortality risk.
The most common cardiovascular events were arrhythmia, followed by coronary heart disease, heart failure, and myocardial infarction.
Patient age, baseline testosterone, smoking status, or diabetes status were not associated with cardiovascular risk.
The only detected adverse effects were edema and a modest lowering of HDL cholesterol.
“Men who develop sexual dysfunction, unexplained anemia, or osteoporosis should be tested for low testosterone,” senior author of the meta-analysis Dr. Jayasena said in an email to this news organization.
However, Dr. Jayasena added, “Mass screening for testosterone has no benefit in asymptomatic men.”
“Older men may still benefit from testosterone, but only if they have the clinical features [of hypogonadism] and low testosterone levels,” he concluded.
The current study is supported by the Health Technology Assessment program of the National Institute for Health Research. The TRAVERSE trial is sponsored by AbbVie. Dr. Jayasena has reported receiving research grants from LogixX Pharma. Dr. Hudson has reported no relevant financial relationships. Disclosures for the other authors are listed in the article. Dr. Michos has reported receiving support from the Amato Fund in Women’s Cardiovascular Health at Johns Hopkins School of Medicine and serving on medical advisory boards for Novartis, Esperion, Amarin, and AstraZeneca outside the submitted work. Dr. Budoff has reported receiving grant support from General Electric.
A version of this article first appeared on Medscape.com.
Despite a new meta-analysis claiming to show that testosterone replacement therapy for men with hypogonadism does not increase the risk of cardiovascular outcomes such as myocardial infarction or stroke, experts say the jury is still out.
A more definitive answer for cardiovascular safety of testosterone therapy will come from the TRAVERSE dedicated cardiovascular outcome trial, sponsored by AbbVie, which will have up to 5 years of follow-up, with results expected later this year.
The current meta-analysis by Jemma Hudson of Aberdeen (Scotland) University and colleagues was published online in The Lancet Healthy Longevity. The work will also be presented June 13 at ENDO 2022, the Endocrine Society’s annual meeting in Atlanta, Georgia, by senior author Channa Y. Jayasena, MD, PhD.
In 2014, the U.S. Food and Drug Administration mandated a label on testosterone products warning of possible increased cardiovascular risks and to reserve the therapy for symptomatic hypogonadism only. In contrast, the European Medicines Agency concluded that when hypogonadism is properly diagnosed and managed, there is currently no clear, consistent evidence that testosterone therapy causes increased cardiovascular risk.
To address this uncertainty, Dr. Hudson and colleagues formed a global collaborative to obtain individual patient data on cardiovascular outcomes from randomized controlled trials of testosterone therapy for men with hypogonadism.
They pooled data from 35 trials published from 1992 to Aug. 27, 2018, including 17 trials (3,431 patients) for which the researchers obtained patient-level data. The individual trials were 3-12 months long, except for one 3-year trial.
During a mean follow-up of 9.5 months, there was no significant increase in cardiovascular outcomes in men randomized to testosterone therapy versus placebo (odds ratio, 1.07; P = .62), nor were there any significantly increased risks of death, stroke, or different types of cardiovascular outcome, although those numbers were small.
This is “the most comprehensive study to date investigating the safety of testosterone treatment of hypogonadism,” according to the researchers. “The current results provide some reassurance about the short-term to medium-term safety of testosterone to treat male hypogonadism,” they conclude.
However, they also acknowledge that “long-term data are needed to fully evaluate the safety of testosterone.”
Erin D. Michos, MD, coauthor of an accompanying editorial, told this news organization, “This study doesn’t say to me that low testosterone necessarily needs to be treated. It’s still not indicated in people just for a low number [for blood testosterone] with less-severe symptoms. It really comes down to each individual person, how symptomatic they are, and their cardiovascular risk.”
‘Trial is not definitive’
Dr. Michos is not the only person to be skeptical. Together with Steven Nissen, MD, an investigator for the TRAVERSE trial, she agrees that this new evidence is not yet decisive, largely because the individual trials in the meta-analysis were short and not designed as cardiovascular outcome trials.
Dr. Nissen, a cardiologist at Cleveland Clinic, added that the individual trials were heterogeneous, with “very few real cardiovascular events,” so the meta-analysis “is not definitive,” he said in an interview.
While this meta-analysis “that pooled together a lot of smaller studies is reassuring that there’s no signal of harm, it’s really inconclusive because the follow-up was really short – a mean of only 9.5 months – and you really need a larger study with longer follow up to be more conclusive,” Dr. Michos noted.
“We should have more data soon” from TRAVERSE, said Dr. Michos, from the division of cardiology, Johns Hopkins University, Baltimore, who is not involved with that study.
Meanwhile, “I don’t think [this analysis] changes the current recommendations,” she said.
“We should continue to use caution as indicated by the FDA label and only use testosterone therapy selectively in people who have true symptoms of hypogonadism,” and be cautious about using it particularly in men at higher cardiovascular risk because of family history or known personal heart disease.
On the other hand, the meta-analysis did not show harm, she noted, “so we don’t necessarily need to pull patients off therapy if they are already taking it. But I wouldn’t right now just start new patients on it unless they had a strong indication.”
“Certainly, great caution is advised regarding the use of testosterone replacement therapy in people with established atherosclerosis due to the findings of plaque progression in the testosterone trials and the excess cardiovascular events observed in the TOM trial, write Dr. Michos and fellow editorialist Matthew J. Budoff, MD, of University of California, Los Angeles, in their editorial.
Earlier data inconclusive
Testosterone concentrations progressively decline in men with advancing age, at about 2% per year, Dr. Michos and Dr. Budoff write. In addition, men with obesity or with diabetes have low levels of testosterone, Dr. Michos noted.
Low testosterone blood levels have been associated with insulin resistance, inflammation, dyslipidemia, and atherosclerosis. Testosterone replacement therapy has been used to increase libido, improve erectile dysfunction, and boost energy levels, mood, and muscle strength.
But it is well known that testosterone increases hematocrit, which has the potential to increase the risk of venous thromboembolism.
Two large observational studies have reported increased risks of myocardial infarction, stroke, and death in men taking testosterone, compared with nonusers, but the study designs have been widely criticized, Dr. Hudson and coauthors say in their article.
A placebo-controlled trial was stopped early by its data- and safety-monitoring board following increased cardiovascular events in men aged 65 and older who received 6 months of testosterone. Other controlled trials have not observed these effects, but none was sufficiently powered.
Meta-analysis results
Dr. Hudson and colleagues performed a meta-analysis of 35 trials in 5,601 men aged 18 years and older with low baseline testosterone (≤ 350 nmol/dL) who had been randomized to testosterone replacement therapy or placebo for at least 3 months, for which there were data on mortality, stroke, and cardiovascular outcomes.
The men were a mean age of 65, had a mean body mass index of 30 kg/m2, and most (88%) were White. A quarter had angina, 8% had a previous myocardial infarction, and 27% had diabetes.
Cardiovascular and cerebrovascular outcomes were not primary outcomes.
During a mean follow-up of 9.5 months, in the 13 trials that provided this information, the rate of cardiovascular events was similar in the men who received testosterone (120/1,601, 7.5%) compared with those who received placebo (110/1,519, 7.2%).
In the 14 trials that provided this information, fewer deaths were reported during testosterone treatment (6/1,621, 0.4%) than during placebo treatment (12/1,537, 0.8%), but these numbers were too small to establish whether testosterone reduced mortality risk.
The most common cardiovascular events were arrhythmia, followed by coronary heart disease, heart failure, and myocardial infarction.
Patient age, baseline testosterone, smoking status, or diabetes status were not associated with cardiovascular risk.
The only detected adverse effects were edema and a modest lowering of HDL cholesterol.
“Men who develop sexual dysfunction, unexplained anemia, or osteoporosis should be tested for low testosterone,” senior author of the meta-analysis Dr. Jayasena said in an email to this news organization.
However, Dr. Jayasena added, “Mass screening for testosterone has no benefit in asymptomatic men.”
“Older men may still benefit from testosterone, but only if they have the clinical features [of hypogonadism] and low testosterone levels,” he concluded.
The current study is supported by the Health Technology Assessment program of the National Institute for Health Research. The TRAVERSE trial is sponsored by AbbVie. Dr. Jayasena has reported receiving research grants from LogixX Pharma. Dr. Hudson has reported no relevant financial relationships. Disclosures for the other authors are listed in the article. Dr. Michos has reported receiving support from the Amato Fund in Women’s Cardiovascular Health at Johns Hopkins School of Medicine and serving on medical advisory boards for Novartis, Esperion, Amarin, and AstraZeneca outside the submitted work. Dr. Budoff has reported receiving grant support from General Electric.
A version of this article first appeared on Medscape.com.
FROM THE LANCET HEALTHY LONGEVITY
‘My malpractice insurance doubled!’ Why, when fewer patients are suing?
Angela Intili, MD, an ob.gyn., was used to seeing her medical malpractice insurance premium rise slightly every couple of years. But she was shocked by the drastic rise she recently experienced.
In the last 2 years, Dr. Intili’s premiums shot from $60,000 to $130,000, she said.
“After 30 years of practice, this is the first time I’ve asked myself if I can even afford to continue practicing obstetrics and gynecology,” said Dr. Intili, 62, of Joliet, Ill. “It’s gotten very difficult to make ends meet as far as overhead because of the liability costs. I still love what I’m doing but I don’t know if I can afford to do it anymore.”
Even more frustrating for Dr. Intili was learning that claims in Illinois have sharply declined. From 2016 to 2020, tort filings in Illinois decreased by 43%, according to a state report.
“If claims are going down, I don’t understand why premium payments are going up,” she said.
Physicians across the country are experiencing a similar paradox. Claims are down, yet premiums are rising.
Medscape’s Malpractice Report 2021 found that 42% of primary care physicians were sued in 2020 through mid-2021, down from 52% in 2019. Fifty-six percent of specialists were sued in 2020 through mid-2021 compared with 62% in 2019, the report found. The pandemic was undoubtedly behind the decrease in suits, according to legal experts.
Yet, physicians paid higher premiums in 2021 and are on track for increases again in 2022, according to data and analysts.
According to Conning, direct premiums written for physicians increased 7.0% in 2021 (from $5.01 billion to $5.36 billion). Conning, an investment management firm that serves the insurance industry, analyzes annual financial reports filed by insurers to state insurance departments. The Medical Liability Monitor’s 2021 report found that premiums for internists, surgeons, and ob.gyns. in states without Patient Compensation Funds rose by an average of 2% in 2021.
The disparities raise questions about why physicians are paying higher premiums when having fewer claims is likely saving insurers’ money. Shouldn’t physicians’ rates reflect the reduction in claims?
Cases plummet during pandemic
During the pandemic, the volume of new medical malpractice claims dwindled to nearly nothing, said Michael Matray, editor of the Medical Liability Monitor, a national publication that analyzes medical liability insurance premiums.
“The court system closed for a while,” he said. “No elective procedures were being done in 2020 and the early parts of 2021. If you have no treatment, you have no malpractice, so of course, claims frequency tumbled down to a trickle.”
The number of large awards also decreased during the pandemic, noted Bill Burns, a director of insurance research at Conning.
“For claims that were already in the system, many of them could not be resolved because of the court closures, inability to take statements and depositions, etc.,” he said. “This resulted in a drop in verdicts.”
In 2021, there were 16 medical malpractice verdicts of $10 million or more in the United States, according to TransRe, an international reinsurance company that tracks large verdicts. In 2020, there were six verdicts of $10 million or more, TransRe research found. This is down from 52 verdicts of $10 million or more in 2019 and 46 verdicts of $10 million or more in 2018.
But although the pandemic lowered claims and decreased the number of payouts, one important aspect was untouched by the COVID era, said Richard E. Anderson, MD, chairman and CEO for The Doctors Company, a national medical liability insurer, and TDC Group.
“It’s a fair question: If claims are down, why are premiums continuing to go up?” Dr. Anderson said. “The answer is severity.”
High-dollar verdicts pave expensive path
The upward trend in severity has continued for about 6 years and has not slowed, Dr. Anderson said. Severity refers to high-dollar verdicts and settlements.
“We’re seeing record-high verdicts all over the country,” he said. “We used to have maps that showed the top 10 medical malpractice verdicts or awards, and they would be clustered where you’d expect them to be, New York, Florida, Illinois, and so forth. Now, if you look at those top 10 verdicts, they could be anywhere in the country.”
In Minnesota for instance, a jury awarded a record $111 million in damages to a college student in May after finding a hospital and an orthopedic surgeon negligent in treating his broken leg. In April, a Kansas City jury awarded a family $25 million after finding that an ob.gyn. and hospital failed to properly treat a mother in labor, causing brain damage to her infant.
Such record payouts factor into premium costs, said Ned Rand Jr., CEO for ProAssurance, a national medical liability insurer. Though only a minority of claims reach that level, when a high award occurs, it puts pressure on the ultimate cost to resolve claims, he said. The frequency of claims filed is also expected to soon rebound, he noted.
“As we price the product sitting here today, we have to factor both of those in,” Mr. Rand said. “That’s why we, as an industry, continue to see, by and large, rates going up. And we fell behind. Some of this severity, in particular, as an industry, we weren’t pricing fully for, so we’ve been playing catch-up.”
High-dollar awards – also called nuclear verdicts – set the arena for future settlements in similar cases, Dr. Anderson added.
“If it was an orthopedic case for instance, and there was a similar injury in another case, that’s the trial lawyers’ starting point for the award,” he said. “Now, they’re not going to get it, but it distorts the negotiations. As we have more and more nuclear verdicts, it becomes harder to settle claims for reasonable amounts.”
What does 2022 have in store?
Analysts say the backlog of malpractice claims in the court system could prove calamitous for premiums and the liability landscape.
Courts are slogging through the pileup caused by the pandemic, but it’s estimated that there is still about a one-third larger case backlog than normal, according to Mr. Matray.
Such delayed claims may end up costing more because of social inflation, said Mr. Burns.
“People look at the world differently than they did 2 years ago,” he said. “A jury may have awarded $5 million for a claim a few years ago. But then the pandemic hits, and we have the George Floyd incident, and we have people out of work and a shortage in baby formula. Yet, companies are still making a lot of money and many insurance companies are turning record profits. Today, that jury may look at a sympathetic malpractice victim and award $10 million for the same claim.”
Concerns also exist about a potential surge of new malpractice claims. Mr. Rand compares the possible wave to a large bubble.
“I liken it to a cartoon, when one character grabs the hose and a big bubble forms as the water builds up,” he said. “Then the character releases, and water comes flooding out. As an industry, we wait, wondering: Is there going to be this flood of claims as the court systems reopen and the statute of limitations approach around some of these claims? That’s an ongoing concern.”
As for impending premiums, physicians can expect rises in 2022 and again in 2023, according to Chris Wojciechowski, a partner at TigerRisk Partners, a reinsurance broker.
“In general, there is a lot of uncertainty around the state of the economy, the tort environment, litigation post COVID, and overall volatility across the capital markets,” he said. “Furthermore, thanks to social and financial inflation, the potential for very severe verdicts has increased dramatically, and as courthouses reopen, the trends are not looking favorable. While many of the physician carriers have strong balance sheets, they can’t lose money on an underwriting basis forever.”
For Dr. Intili, the Illinois ob.gyn., news of another impending increase in 2022 is distressing. She expects another 10%-20% rise in 2022, she said. If she were younger and earlier in her career, she might’ve considered moving, she said, but her family lives in Illinois and she cares for her older parents.
“I’m not ready to retire,” Dr. Intili said. “I’m looking into options, possibly becoming a hospitalist or doing locum tenens work. I’ve been a solo practitioner for 27 years and I love the autonomy. But these high premiums are making it almost impossible to continue.”
A version of this article first appeared on Medscape.com.
Angela Intili, MD, an ob.gyn., was used to seeing her medical malpractice insurance premium rise slightly every couple of years. But she was shocked by the drastic rise she recently experienced.
In the last 2 years, Dr. Intili’s premiums shot from $60,000 to $130,000, she said.
“After 30 years of practice, this is the first time I’ve asked myself if I can even afford to continue practicing obstetrics and gynecology,” said Dr. Intili, 62, of Joliet, Ill. “It’s gotten very difficult to make ends meet as far as overhead because of the liability costs. I still love what I’m doing but I don’t know if I can afford to do it anymore.”
Even more frustrating for Dr. Intili was learning that claims in Illinois have sharply declined. From 2016 to 2020, tort filings in Illinois decreased by 43%, according to a state report.
“If claims are going down, I don’t understand why premium payments are going up,” she said.
Physicians across the country are experiencing a similar paradox. Claims are down, yet premiums are rising.
Medscape’s Malpractice Report 2021 found that 42% of primary care physicians were sued in 2020 through mid-2021, down from 52% in 2019. Fifty-six percent of specialists were sued in 2020 through mid-2021 compared with 62% in 2019, the report found. The pandemic was undoubtedly behind the decrease in suits, according to legal experts.
Yet, physicians paid higher premiums in 2021 and are on track for increases again in 2022, according to data and analysts.
According to Conning, direct premiums written for physicians increased 7.0% in 2021 (from $5.01 billion to $5.36 billion). Conning, an investment management firm that serves the insurance industry, analyzes annual financial reports filed by insurers to state insurance departments. The Medical Liability Monitor’s 2021 report found that premiums for internists, surgeons, and ob.gyns. in states without Patient Compensation Funds rose by an average of 2% in 2021.
The disparities raise questions about why physicians are paying higher premiums when having fewer claims is likely saving insurers’ money. Shouldn’t physicians’ rates reflect the reduction in claims?
Cases plummet during pandemic
During the pandemic, the volume of new medical malpractice claims dwindled to nearly nothing, said Michael Matray, editor of the Medical Liability Monitor, a national publication that analyzes medical liability insurance premiums.
“The court system closed for a while,” he said. “No elective procedures were being done in 2020 and the early parts of 2021. If you have no treatment, you have no malpractice, so of course, claims frequency tumbled down to a trickle.”
The number of large awards also decreased during the pandemic, noted Bill Burns, a director of insurance research at Conning.
“For claims that were already in the system, many of them could not be resolved because of the court closures, inability to take statements and depositions, etc.,” he said. “This resulted in a drop in verdicts.”
In 2021, there were 16 medical malpractice verdicts of $10 million or more in the United States, according to TransRe, an international reinsurance company that tracks large verdicts. In 2020, there were six verdicts of $10 million or more, TransRe research found. This is down from 52 verdicts of $10 million or more in 2019 and 46 verdicts of $10 million or more in 2018.
But although the pandemic lowered claims and decreased the number of payouts, one important aspect was untouched by the COVID era, said Richard E. Anderson, MD, chairman and CEO for The Doctors Company, a national medical liability insurer, and TDC Group.
“It’s a fair question: If claims are down, why are premiums continuing to go up?” Dr. Anderson said. “The answer is severity.”
High-dollar verdicts pave expensive path
The upward trend in severity has continued for about 6 years and has not slowed, Dr. Anderson said. Severity refers to high-dollar verdicts and settlements.
“We’re seeing record-high verdicts all over the country,” he said. “We used to have maps that showed the top 10 medical malpractice verdicts or awards, and they would be clustered where you’d expect them to be, New York, Florida, Illinois, and so forth. Now, if you look at those top 10 verdicts, they could be anywhere in the country.”
In Minnesota for instance, a jury awarded a record $111 million in damages to a college student in May after finding a hospital and an orthopedic surgeon negligent in treating his broken leg. In April, a Kansas City jury awarded a family $25 million after finding that an ob.gyn. and hospital failed to properly treat a mother in labor, causing brain damage to her infant.
Such record payouts factor into premium costs, said Ned Rand Jr., CEO for ProAssurance, a national medical liability insurer. Though only a minority of claims reach that level, when a high award occurs, it puts pressure on the ultimate cost to resolve claims, he said. The frequency of claims filed is also expected to soon rebound, he noted.
“As we price the product sitting here today, we have to factor both of those in,” Mr. Rand said. “That’s why we, as an industry, continue to see, by and large, rates going up. And we fell behind. Some of this severity, in particular, as an industry, we weren’t pricing fully for, so we’ve been playing catch-up.”
High-dollar awards – also called nuclear verdicts – set the arena for future settlements in similar cases, Dr. Anderson added.
“If it was an orthopedic case for instance, and there was a similar injury in another case, that’s the trial lawyers’ starting point for the award,” he said. “Now, they’re not going to get it, but it distorts the negotiations. As we have more and more nuclear verdicts, it becomes harder to settle claims for reasonable amounts.”
What does 2022 have in store?
Analysts say the backlog of malpractice claims in the court system could prove calamitous for premiums and the liability landscape.
Courts are slogging through the pileup caused by the pandemic, but it’s estimated that there is still about a one-third larger case backlog than normal, according to Mr. Matray.
Such delayed claims may end up costing more because of social inflation, said Mr. Burns.
“People look at the world differently than they did 2 years ago,” he said. “A jury may have awarded $5 million for a claim a few years ago. But then the pandemic hits, and we have the George Floyd incident, and we have people out of work and a shortage in baby formula. Yet, companies are still making a lot of money and many insurance companies are turning record profits. Today, that jury may look at a sympathetic malpractice victim and award $10 million for the same claim.”
Concerns also exist about a potential surge of new malpractice claims. Mr. Rand compares the possible wave to a large bubble.
“I liken it to a cartoon, when one character grabs the hose and a big bubble forms as the water builds up,” he said. “Then the character releases, and water comes flooding out. As an industry, we wait, wondering: Is there going to be this flood of claims as the court systems reopen and the statute of limitations approach around some of these claims? That’s an ongoing concern.”
As for impending premiums, physicians can expect rises in 2022 and again in 2023, according to Chris Wojciechowski, a partner at TigerRisk Partners, a reinsurance broker.
“In general, there is a lot of uncertainty around the state of the economy, the tort environment, litigation post COVID, and overall volatility across the capital markets,” he said. “Furthermore, thanks to social and financial inflation, the potential for very severe verdicts has increased dramatically, and as courthouses reopen, the trends are not looking favorable. While many of the physician carriers have strong balance sheets, they can’t lose money on an underwriting basis forever.”
For Dr. Intili, the Illinois ob.gyn., news of another impending increase in 2022 is distressing. She expects another 10%-20% rise in 2022, she said. If she were younger and earlier in her career, she might’ve considered moving, she said, but her family lives in Illinois and she cares for her older parents.
“I’m not ready to retire,” Dr. Intili said. “I’m looking into options, possibly becoming a hospitalist or doing locum tenens work. I’ve been a solo practitioner for 27 years and I love the autonomy. But these high premiums are making it almost impossible to continue.”
A version of this article first appeared on Medscape.com.
Angela Intili, MD, an ob.gyn., was used to seeing her medical malpractice insurance premium rise slightly every couple of years. But she was shocked by the drastic rise she recently experienced.
In the last 2 years, Dr. Intili’s premiums shot from $60,000 to $130,000, she said.
“After 30 years of practice, this is the first time I’ve asked myself if I can even afford to continue practicing obstetrics and gynecology,” said Dr. Intili, 62, of Joliet, Ill. “It’s gotten very difficult to make ends meet as far as overhead because of the liability costs. I still love what I’m doing but I don’t know if I can afford to do it anymore.”
Even more frustrating for Dr. Intili was learning that claims in Illinois have sharply declined. From 2016 to 2020, tort filings in Illinois decreased by 43%, according to a state report.
“If claims are going down, I don’t understand why premium payments are going up,” she said.
Physicians across the country are experiencing a similar paradox. Claims are down, yet premiums are rising.
Medscape’s Malpractice Report 2021 found that 42% of primary care physicians were sued in 2020 through mid-2021, down from 52% in 2019. Fifty-six percent of specialists were sued in 2020 through mid-2021 compared with 62% in 2019, the report found. The pandemic was undoubtedly behind the decrease in suits, according to legal experts.
Yet, physicians paid higher premiums in 2021 and are on track for increases again in 2022, according to data and analysts.
According to Conning, direct premiums written for physicians increased 7.0% in 2021 (from $5.01 billion to $5.36 billion). Conning, an investment management firm that serves the insurance industry, analyzes annual financial reports filed by insurers to state insurance departments. The Medical Liability Monitor’s 2021 report found that premiums for internists, surgeons, and ob.gyns. in states without Patient Compensation Funds rose by an average of 2% in 2021.
The disparities raise questions about why physicians are paying higher premiums when having fewer claims is likely saving insurers’ money. Shouldn’t physicians’ rates reflect the reduction in claims?
Cases plummet during pandemic
During the pandemic, the volume of new medical malpractice claims dwindled to nearly nothing, said Michael Matray, editor of the Medical Liability Monitor, a national publication that analyzes medical liability insurance premiums.
“The court system closed for a while,” he said. “No elective procedures were being done in 2020 and the early parts of 2021. If you have no treatment, you have no malpractice, so of course, claims frequency tumbled down to a trickle.”
The number of large awards also decreased during the pandemic, noted Bill Burns, a director of insurance research at Conning.
“For claims that were already in the system, many of them could not be resolved because of the court closures, inability to take statements and depositions, etc.,” he said. “This resulted in a drop in verdicts.”
In 2021, there were 16 medical malpractice verdicts of $10 million or more in the United States, according to TransRe, an international reinsurance company that tracks large verdicts. In 2020, there were six verdicts of $10 million or more, TransRe research found. This is down from 52 verdicts of $10 million or more in 2019 and 46 verdicts of $10 million or more in 2018.
But although the pandemic lowered claims and decreased the number of payouts, one important aspect was untouched by the COVID era, said Richard E. Anderson, MD, chairman and CEO for The Doctors Company, a national medical liability insurer, and TDC Group.
“It’s a fair question: If claims are down, why are premiums continuing to go up?” Dr. Anderson said. “The answer is severity.”
High-dollar verdicts pave expensive path
The upward trend in severity has continued for about 6 years and has not slowed, Dr. Anderson said. Severity refers to high-dollar verdicts and settlements.
“We’re seeing record-high verdicts all over the country,” he said. “We used to have maps that showed the top 10 medical malpractice verdicts or awards, and they would be clustered where you’d expect them to be, New York, Florida, Illinois, and so forth. Now, if you look at those top 10 verdicts, they could be anywhere in the country.”
In Minnesota for instance, a jury awarded a record $111 million in damages to a college student in May after finding a hospital and an orthopedic surgeon negligent in treating his broken leg. In April, a Kansas City jury awarded a family $25 million after finding that an ob.gyn. and hospital failed to properly treat a mother in labor, causing brain damage to her infant.
Such record payouts factor into premium costs, said Ned Rand Jr., CEO for ProAssurance, a national medical liability insurer. Though only a minority of claims reach that level, when a high award occurs, it puts pressure on the ultimate cost to resolve claims, he said. The frequency of claims filed is also expected to soon rebound, he noted.
“As we price the product sitting here today, we have to factor both of those in,” Mr. Rand said. “That’s why we, as an industry, continue to see, by and large, rates going up. And we fell behind. Some of this severity, in particular, as an industry, we weren’t pricing fully for, so we’ve been playing catch-up.”
High-dollar awards – also called nuclear verdicts – set the arena for future settlements in similar cases, Dr. Anderson added.
“If it was an orthopedic case for instance, and there was a similar injury in another case, that’s the trial lawyers’ starting point for the award,” he said. “Now, they’re not going to get it, but it distorts the negotiations. As we have more and more nuclear verdicts, it becomes harder to settle claims for reasonable amounts.”
What does 2022 have in store?
Analysts say the backlog of malpractice claims in the court system could prove calamitous for premiums and the liability landscape.
Courts are slogging through the pileup caused by the pandemic, but it’s estimated that there is still about a one-third larger case backlog than normal, according to Mr. Matray.
Such delayed claims may end up costing more because of social inflation, said Mr. Burns.
“People look at the world differently than they did 2 years ago,” he said. “A jury may have awarded $5 million for a claim a few years ago. But then the pandemic hits, and we have the George Floyd incident, and we have people out of work and a shortage in baby formula. Yet, companies are still making a lot of money and many insurance companies are turning record profits. Today, that jury may look at a sympathetic malpractice victim and award $10 million for the same claim.”
Concerns also exist about a potential surge of new malpractice claims. Mr. Rand compares the possible wave to a large bubble.
“I liken it to a cartoon, when one character grabs the hose and a big bubble forms as the water builds up,” he said. “Then the character releases, and water comes flooding out. As an industry, we wait, wondering: Is there going to be this flood of claims as the court systems reopen and the statute of limitations approach around some of these claims? That’s an ongoing concern.”
As for impending premiums, physicians can expect rises in 2022 and again in 2023, according to Chris Wojciechowski, a partner at TigerRisk Partners, a reinsurance broker.
“In general, there is a lot of uncertainty around the state of the economy, the tort environment, litigation post COVID, and overall volatility across the capital markets,” he said. “Furthermore, thanks to social and financial inflation, the potential for very severe verdicts has increased dramatically, and as courthouses reopen, the trends are not looking favorable. While many of the physician carriers have strong balance sheets, they can’t lose money on an underwriting basis forever.”
For Dr. Intili, the Illinois ob.gyn., news of another impending increase in 2022 is distressing. She expects another 10%-20% rise in 2022, she said. If she were younger and earlier in her career, she might’ve considered moving, she said, but her family lives in Illinois and she cares for her older parents.
“I’m not ready to retire,” Dr. Intili said. “I’m looking into options, possibly becoming a hospitalist or doing locum tenens work. I’ve been a solo practitioner for 27 years and I love the autonomy. But these high premiums are making it almost impossible to continue.”
A version of this article first appeared on Medscape.com.
Post-hoc analysis offers hope for novel cholesterol drug
MILAN, Italy – The antisense oligonucleotide vupanorsen substantially reduces very-low-density-lipoprotein (VLDL) and remnant cholesterol levels in patients with raised lipids despite statin therapy, suggests a subanalysis of TRANSLATE-TIMI 70 that appears to offer more hope than the primary study findings.
Vupanorsen targets hepatic angiopoietin-like protein 3 (ANGPTL3), which inhibits enzymes involved in triglyceride and cholesterol metabolism.
Earlier this year, headline data from TRANSLATE-TIMI 70 suggested that the drug reduced triglycerides and non–high-density-lipoprotein cholesterol to a degree that was significant but not clinically meaningful for cardiovascular risk reduction.
Moreover, as reported by this news organization, there were safety concerns over increases in liver enzymes among patients taking the drug, as well as dose-related increases in hepatic fat.
As a result, Pfizer announced that it would discontinue its clinical development program for vupanorsen and return the development rights to Ionis, following the signing of a worldwide exclusive agreement in November 2019.
Now, Nicholas A. Marston, MD, MPH, cardiovascular medicine, Brigham and Women’s Hospital, Boston, has presented a post-hoc analysis of the phase 2b study, showing that the drug reduces VLDL and remnant cholesterol levels by up to 60%.
These were closely tied to reductions in ANGPTL3 levels, although substantial reductions in cholesterol levels were achieved even at less than maximal reductions in ANGPTL3, where the impact on safety outcomes was reduced.
Dr. Marston said that lower doses of vupanorsen, where the safety effects would be less, or other drugs that inhibit ANGPTL3, “may have an important role in patients with residual dyslipidemia despite current therapy.”
The results were presented at the 90th European Atherosclerosis Society Congress on May 23.
Dr. Marston told this news organization that some of the reductions they saw with the lower doses of vupanorsen were “just as good as any other therapy, and the safety profile was … much better than at the highest dose.”
They wanted to pursue the subgroup analysis, despite Pfizer’s announcement, partly to “learn something in terms of the potential efficacy of the ANGPTL3 pathway in general.”
Dr. Marston said that Ionis is now focused on ANGPTL3, and the current results suggest that it “works very well,” so if other drugs are able to achieve the same efficacy as vupanorsen “but without the effects,” then it may “get elbowed out.”
Børge G. Nordestgaard, MD, PhD, of Herlev and Gentofte Hospital, Copenhagen, who was not involved in the study, called the findings “very encouraging.”
He told this news organization that being able to reduce LDL cholesterol as well as VLDL and remnant cholesterol is “exactly what I would be dreaming about” with a drug like vupanorsen.
Dr. Nordestgaard nevertheless underlined that “one would have to look carefully” at the safety of the drug.
“If it was my money, I would certainly try to look into if this was some sort of transient thing. Even when they started talking about statins, there was also this transient increase in alanine transaminase that seems to go away after a while,” he said.
“But of course, if this was persistent and triglycerides in the liver kept accumulating, then it’s a problem,” Dr. Nordestgaard added, “and then you would need to have some sort of thinking about whether you could couple it with something that got rid of the liver fat.”
He also agreed with Dr. Marston that, even if vupanorsen does not clear all hurdles before making it to market, the approach is promising.
“The target,” Dr. Nordestgaard said, seems “fantastic, from my point of view anyway.”
Dr. Marston explained that VLDL cholesterol, remnant cholesterol, and triglycerides are “surrogates for triglyceride-rich” lipoproteins, and that they are “increasingly recognized” as cardiovascular risk factors.
He highlighted that currently available therapies achieve reductions of these compounds of between 30% and 50%.
TRANSLATE-TIMI 70 included adults on stable statin therapy who had a triglyceride level of 150 mg/dL to 500 mg/dL and a non-HDL cholesterol level of 100 mg/dL or higher.
The participants were randomly assigned to one of six 2- or 4-week dosing schedules of vupanorsen or placebo and followed up over 24 weeks for a series of primary and additional endpoints, as well as safety outcomes.
The team recruited 286 individuals, who had a median age of 64 years; 44% were female. The majority (87%) were white.
The mean body mass index was 32 kg/m2, 50% had diabetes, 13% had experienced a prior myocardial infarction, and 51% were receiving high-intensity statins.
As previously reported, vupanorsen was associated with a reduction in non-HDL cholesterol vs. placebo of 22%-28%, alongside a 6%-15% reduction in apolipoprotein B levels and an 8%-16% reduction in LDL cholesterol.
In contrast, Dr. Marston showed that the various dosing schedules of the drug were associated with reductions in levels of VLDL cholesterol of 52%-66% vs. placebo at 24 weeks.
Over the same period, remnant cholesterol levels were lowered by 42%-59% vs. placebo, and triglycerides were reduced by 44%-57% in patients given vupanorsen.
There were also reductions in ANGPTL3 levels of 70%-95%.
Subgroup analysis indicated that the effect of vupanorsen was seen regardless of age, sex, body mass index, presence of diabetes, baseline triglycerides, and intensity of statin therapy.
Dr. Marston highlighted that the reductions in triglycerides, VLDL cholesterol, and remnant cholesterol levels were directly related to those for ANGPTL3 levels, but that the reductions remained meaningful even at less than maximal reductions in ANGPTL.
For example, even when ANGPTL3 levels were reduced by 70%, there were 50% reductions in triglyceride levels, 70% reductions in VLDL cholesterol levels, and a 50% drop in remnant cholesterol levels.
This, he noted, is important given that safety signals such as increases in alanine transaminase and hepatic fat occurred in a dose-dependent manner with ANGPTL3 reductions and were “most pronounced” only at the highest level of ANGPTL3 reduction.
The TRANSLATE-TIMI 70 study was sponsored by Pfizer. Dr. Marston disclosed relationships with Pfizer, Amgen, Ionis, Novartis, and AstraZeneca. Dr. Nordestgaard disclosed relationships with AstraZeneca, Sanofi, Regeneron, Akcea, Ionis, Amgen, Kowa, Denka, Amarin, Novartis, Novo Nordisk, Esperion, and Silence Therapeutics.
A version of this article first appeared on Medscape.com.
MILAN, Italy – The antisense oligonucleotide vupanorsen substantially reduces very-low-density-lipoprotein (VLDL) and remnant cholesterol levels in patients with raised lipids despite statin therapy, suggests a subanalysis of TRANSLATE-TIMI 70 that appears to offer more hope than the primary study findings.
Vupanorsen targets hepatic angiopoietin-like protein 3 (ANGPTL3), which inhibits enzymes involved in triglyceride and cholesterol metabolism.
Earlier this year, headline data from TRANSLATE-TIMI 70 suggested that the drug reduced triglycerides and non–high-density-lipoprotein cholesterol to a degree that was significant but not clinically meaningful for cardiovascular risk reduction.
Moreover, as reported by this news organization, there were safety concerns over increases in liver enzymes among patients taking the drug, as well as dose-related increases in hepatic fat.
As a result, Pfizer announced that it would discontinue its clinical development program for vupanorsen and return the development rights to Ionis, following the signing of a worldwide exclusive agreement in November 2019.
Now, Nicholas A. Marston, MD, MPH, cardiovascular medicine, Brigham and Women’s Hospital, Boston, has presented a post-hoc analysis of the phase 2b study, showing that the drug reduces VLDL and remnant cholesterol levels by up to 60%.
These were closely tied to reductions in ANGPTL3 levels, although substantial reductions in cholesterol levels were achieved even at less than maximal reductions in ANGPTL3, where the impact on safety outcomes was reduced.
Dr. Marston said that lower doses of vupanorsen, where the safety effects would be less, or other drugs that inhibit ANGPTL3, “may have an important role in patients with residual dyslipidemia despite current therapy.”
The results were presented at the 90th European Atherosclerosis Society Congress on May 23.
Dr. Marston told this news organization that some of the reductions they saw with the lower doses of vupanorsen were “just as good as any other therapy, and the safety profile was … much better than at the highest dose.”
They wanted to pursue the subgroup analysis, despite Pfizer’s announcement, partly to “learn something in terms of the potential efficacy of the ANGPTL3 pathway in general.”
Dr. Marston said that Ionis is now focused on ANGPTL3, and the current results suggest that it “works very well,” so if other drugs are able to achieve the same efficacy as vupanorsen “but without the effects,” then it may “get elbowed out.”
Børge G. Nordestgaard, MD, PhD, of Herlev and Gentofte Hospital, Copenhagen, who was not involved in the study, called the findings “very encouraging.”
He told this news organization that being able to reduce LDL cholesterol as well as VLDL and remnant cholesterol is “exactly what I would be dreaming about” with a drug like vupanorsen.
Dr. Nordestgaard nevertheless underlined that “one would have to look carefully” at the safety of the drug.
“If it was my money, I would certainly try to look into if this was some sort of transient thing. Even when they started talking about statins, there was also this transient increase in alanine transaminase that seems to go away after a while,” he said.
“But of course, if this was persistent and triglycerides in the liver kept accumulating, then it’s a problem,” Dr. Nordestgaard added, “and then you would need to have some sort of thinking about whether you could couple it with something that got rid of the liver fat.”
He also agreed with Dr. Marston that, even if vupanorsen does not clear all hurdles before making it to market, the approach is promising.
“The target,” Dr. Nordestgaard said, seems “fantastic, from my point of view anyway.”
Dr. Marston explained that VLDL cholesterol, remnant cholesterol, and triglycerides are “surrogates for triglyceride-rich” lipoproteins, and that they are “increasingly recognized” as cardiovascular risk factors.
He highlighted that currently available therapies achieve reductions of these compounds of between 30% and 50%.
TRANSLATE-TIMI 70 included adults on stable statin therapy who had a triglyceride level of 150 mg/dL to 500 mg/dL and a non-HDL cholesterol level of 100 mg/dL or higher.
The participants were randomly assigned to one of six 2- or 4-week dosing schedules of vupanorsen or placebo and followed up over 24 weeks for a series of primary and additional endpoints, as well as safety outcomes.
The team recruited 286 individuals, who had a median age of 64 years; 44% were female. The majority (87%) were white.
The mean body mass index was 32 kg/m2, 50% had diabetes, 13% had experienced a prior myocardial infarction, and 51% were receiving high-intensity statins.
As previously reported, vupanorsen was associated with a reduction in non-HDL cholesterol vs. placebo of 22%-28%, alongside a 6%-15% reduction in apolipoprotein B levels and an 8%-16% reduction in LDL cholesterol.
In contrast, Dr. Marston showed that the various dosing schedules of the drug were associated with reductions in levels of VLDL cholesterol of 52%-66% vs. placebo at 24 weeks.
Over the same period, remnant cholesterol levels were lowered by 42%-59% vs. placebo, and triglycerides were reduced by 44%-57% in patients given vupanorsen.
There were also reductions in ANGPTL3 levels of 70%-95%.
Subgroup analysis indicated that the effect of vupanorsen was seen regardless of age, sex, body mass index, presence of diabetes, baseline triglycerides, and intensity of statin therapy.
Dr. Marston highlighted that the reductions in triglycerides, VLDL cholesterol, and remnant cholesterol levels were directly related to those for ANGPTL3 levels, but that the reductions remained meaningful even at less than maximal reductions in ANGPTL.
For example, even when ANGPTL3 levels were reduced by 70%, there were 50% reductions in triglyceride levels, 70% reductions in VLDL cholesterol levels, and a 50% drop in remnant cholesterol levels.
This, he noted, is important given that safety signals such as increases in alanine transaminase and hepatic fat occurred in a dose-dependent manner with ANGPTL3 reductions and were “most pronounced” only at the highest level of ANGPTL3 reduction.
The TRANSLATE-TIMI 70 study was sponsored by Pfizer. Dr. Marston disclosed relationships with Pfizer, Amgen, Ionis, Novartis, and AstraZeneca. Dr. Nordestgaard disclosed relationships with AstraZeneca, Sanofi, Regeneron, Akcea, Ionis, Amgen, Kowa, Denka, Amarin, Novartis, Novo Nordisk, Esperion, and Silence Therapeutics.
A version of this article first appeared on Medscape.com.
MILAN, Italy – The antisense oligonucleotide vupanorsen substantially reduces very-low-density-lipoprotein (VLDL) and remnant cholesterol levels in patients with raised lipids despite statin therapy, suggests a subanalysis of TRANSLATE-TIMI 70 that appears to offer more hope than the primary study findings.
Vupanorsen targets hepatic angiopoietin-like protein 3 (ANGPTL3), which inhibits enzymes involved in triglyceride and cholesterol metabolism.
Earlier this year, headline data from TRANSLATE-TIMI 70 suggested that the drug reduced triglycerides and non–high-density-lipoprotein cholesterol to a degree that was significant but not clinically meaningful for cardiovascular risk reduction.
Moreover, as reported by this news organization, there were safety concerns over increases in liver enzymes among patients taking the drug, as well as dose-related increases in hepatic fat.
As a result, Pfizer announced that it would discontinue its clinical development program for vupanorsen and return the development rights to Ionis, following the signing of a worldwide exclusive agreement in November 2019.
Now, Nicholas A. Marston, MD, MPH, cardiovascular medicine, Brigham and Women’s Hospital, Boston, has presented a post-hoc analysis of the phase 2b study, showing that the drug reduces VLDL and remnant cholesterol levels by up to 60%.
These were closely tied to reductions in ANGPTL3 levels, although substantial reductions in cholesterol levels were achieved even at less than maximal reductions in ANGPTL3, where the impact on safety outcomes was reduced.
Dr. Marston said that lower doses of vupanorsen, where the safety effects would be less, or other drugs that inhibit ANGPTL3, “may have an important role in patients with residual dyslipidemia despite current therapy.”
The results were presented at the 90th European Atherosclerosis Society Congress on May 23.
Dr. Marston told this news organization that some of the reductions they saw with the lower doses of vupanorsen were “just as good as any other therapy, and the safety profile was … much better than at the highest dose.”
They wanted to pursue the subgroup analysis, despite Pfizer’s announcement, partly to “learn something in terms of the potential efficacy of the ANGPTL3 pathway in general.”
Dr. Marston said that Ionis is now focused on ANGPTL3, and the current results suggest that it “works very well,” so if other drugs are able to achieve the same efficacy as vupanorsen “but without the effects,” then it may “get elbowed out.”
Børge G. Nordestgaard, MD, PhD, of Herlev and Gentofte Hospital, Copenhagen, who was not involved in the study, called the findings “very encouraging.”
He told this news organization that being able to reduce LDL cholesterol as well as VLDL and remnant cholesterol is “exactly what I would be dreaming about” with a drug like vupanorsen.
Dr. Nordestgaard nevertheless underlined that “one would have to look carefully” at the safety of the drug.
“If it was my money, I would certainly try to look into if this was some sort of transient thing. Even when they started talking about statins, there was also this transient increase in alanine transaminase that seems to go away after a while,” he said.
“But of course, if this was persistent and triglycerides in the liver kept accumulating, then it’s a problem,” Dr. Nordestgaard added, “and then you would need to have some sort of thinking about whether you could couple it with something that got rid of the liver fat.”
He also agreed with Dr. Marston that, even if vupanorsen does not clear all hurdles before making it to market, the approach is promising.
“The target,” Dr. Nordestgaard said, seems “fantastic, from my point of view anyway.”
Dr. Marston explained that VLDL cholesterol, remnant cholesterol, and triglycerides are “surrogates for triglyceride-rich” lipoproteins, and that they are “increasingly recognized” as cardiovascular risk factors.
He highlighted that currently available therapies achieve reductions of these compounds of between 30% and 50%.
TRANSLATE-TIMI 70 included adults on stable statin therapy who had a triglyceride level of 150 mg/dL to 500 mg/dL and a non-HDL cholesterol level of 100 mg/dL or higher.
The participants were randomly assigned to one of six 2- or 4-week dosing schedules of vupanorsen or placebo and followed up over 24 weeks for a series of primary and additional endpoints, as well as safety outcomes.
The team recruited 286 individuals, who had a median age of 64 years; 44% were female. The majority (87%) were white.
The mean body mass index was 32 kg/m2, 50% had diabetes, 13% had experienced a prior myocardial infarction, and 51% were receiving high-intensity statins.
As previously reported, vupanorsen was associated with a reduction in non-HDL cholesterol vs. placebo of 22%-28%, alongside a 6%-15% reduction in apolipoprotein B levels and an 8%-16% reduction in LDL cholesterol.
In contrast, Dr. Marston showed that the various dosing schedules of the drug were associated with reductions in levels of VLDL cholesterol of 52%-66% vs. placebo at 24 weeks.
Over the same period, remnant cholesterol levels were lowered by 42%-59% vs. placebo, and triglycerides were reduced by 44%-57% in patients given vupanorsen.
There were also reductions in ANGPTL3 levels of 70%-95%.
Subgroup analysis indicated that the effect of vupanorsen was seen regardless of age, sex, body mass index, presence of diabetes, baseline triglycerides, and intensity of statin therapy.
Dr. Marston highlighted that the reductions in triglycerides, VLDL cholesterol, and remnant cholesterol levels were directly related to those for ANGPTL3 levels, but that the reductions remained meaningful even at less than maximal reductions in ANGPTL.
For example, even when ANGPTL3 levels were reduced by 70%, there were 50% reductions in triglyceride levels, 70% reductions in VLDL cholesterol levels, and a 50% drop in remnant cholesterol levels.
This, he noted, is important given that safety signals such as increases in alanine transaminase and hepatic fat occurred in a dose-dependent manner with ANGPTL3 reductions and were “most pronounced” only at the highest level of ANGPTL3 reduction.
The TRANSLATE-TIMI 70 study was sponsored by Pfizer. Dr. Marston disclosed relationships with Pfizer, Amgen, Ionis, Novartis, and AstraZeneca. Dr. Nordestgaard disclosed relationships with AstraZeneca, Sanofi, Regeneron, Akcea, Ionis, Amgen, Kowa, Denka, Amarin, Novartis, Novo Nordisk, Esperion, and Silence Therapeutics.
A version of this article first appeared on Medscape.com.
AT EAS 2022
Harmony pulmonary valve update: Regurgitation resolved 1 year out
The 1-year results of the Harmony transcatheter pulmonary valve to treat severe pulmonary regurgitation have shown a high rate of eliminating or reducing the degree of symptoms as well as freedom from endocarditis, sustained ventricular tachycardia, and the need for further interventions.
“Simply put, the good news is no endocarditis,” said Daniel S. Levi, MD, in presenting results from three different studies with 108 patients who received three different iterations of the device at the Society for Cardiovascular Angiography & Interventions annual scientific sessions.
“Endocarditis has been an issue for us in the pulmonary position; we have yet to have an endocarditis in these patients in 1 year,” he stressed.
The studies evaluated three different versions of the Harmony valve: TPV22 (42 patients), the first version with a 22-mm diameter; the Clinical TPV25 (17 patients), the first iteration of a 25 mm–wide device that has since been discontinued; and the modified TPV25 (45 patients), the second version of the 25-mm valve. The three studies are the early feasibility study of the TPV22, the continued-access study of the TPV22 and the mTPV25, and the pivotal study that included all three versions.
At baseline, 89% of patients had severe and 11% had moderate pulmonary regurgitation (PR). At 1 year, 92% had none or trace PR, 3% had mild PR, and 4% moderate disease.
Dr. Levi said the device “speaks for itself” in the results he presented. They include no deaths, no heart attacks, and no pulmonary thromboembolism. Other key outcomes include:
- One major stent fracture in one of the early feasibility study patients at 1-month follow-up.
- Four explants, with two in the discontinued cTPV25 and two with the TPV22 in the early-feasibility study.
- Four reinterventions, two with the discontinued cTPV25 and two valve-in-valve procedures with the mTPV25 in the continued-access study, one with stent placement in the right ventricular outflow tract.
Dr. Levi and coinvestigators also performed a breakdown of 1-year outcomes – freedom from PR, stenosis, and interventions – by device: 95.1% for TPV22; 89.7% for mTPV25; and 73.3% for the discontinued cTPV25.
Although the valve is indicated for adolescents and adults, most of the patients in the three studies were adults, with an average weight of 165 pounds (75 kg) who have had PR for decades, said Dr. Levi, an interventional pediatric cardiologist at the University of California, Los Angeles. “With a device like this we are hopefully shifting to treating that a little bit earlier, but fortunately we don’t usually need to treat it before puberty.” The 25-mm TPV gives “a really nice landing zone” for future valve placement. “The goal is to keep patients out of the operating room for at least a few decades if not their whole lives,” he said.
Dr. Levi said the Harmony investigators will follow outcomes with the 22- and modified 25-mm Harmony valves, both of which remain commercially available, out to 10 years.
The study represents the first collective cohort evaluating the Harmony device across the early feasibility, continued access and pivotal studies, said Brian Morray, MD. “It’s important that people understand that evolution and how that impacts the way we look at outcomes, because when you aggregate the data, particularly for the TPV25, some of the procedural outcomes and the adverse events are no longer really reflective in the current time frame.”
These Harmony results “represent another big step in the evolution of interventional cardiology and will be up there with development of the Melody valve and the utility and the use of the Sapien valve in the pulmonary position,” said Dr. Morray, an associate professor of pediatrics at the University of Washington, Seattle, and an interventional cardiologist at Seattle Children’s Hospital.
Dr. Levi disclosed he is a consultant to Medtronic and Edwards Lifesciences. Dr. Morray disclosed he is a clinical proctor for Abbott and a consultant to Medtronic, but not for the Harmony device.
The 1-year results of the Harmony transcatheter pulmonary valve to treat severe pulmonary regurgitation have shown a high rate of eliminating or reducing the degree of symptoms as well as freedom from endocarditis, sustained ventricular tachycardia, and the need for further interventions.
“Simply put, the good news is no endocarditis,” said Daniel S. Levi, MD, in presenting results from three different studies with 108 patients who received three different iterations of the device at the Society for Cardiovascular Angiography & Interventions annual scientific sessions.
“Endocarditis has been an issue for us in the pulmonary position; we have yet to have an endocarditis in these patients in 1 year,” he stressed.
The studies evaluated three different versions of the Harmony valve: TPV22 (42 patients), the first version with a 22-mm diameter; the Clinical TPV25 (17 patients), the first iteration of a 25 mm–wide device that has since been discontinued; and the modified TPV25 (45 patients), the second version of the 25-mm valve. The three studies are the early feasibility study of the TPV22, the continued-access study of the TPV22 and the mTPV25, and the pivotal study that included all three versions.
At baseline, 89% of patients had severe and 11% had moderate pulmonary regurgitation (PR). At 1 year, 92% had none or trace PR, 3% had mild PR, and 4% moderate disease.
Dr. Levi said the device “speaks for itself” in the results he presented. They include no deaths, no heart attacks, and no pulmonary thromboembolism. Other key outcomes include:
- One major stent fracture in one of the early feasibility study patients at 1-month follow-up.
- Four explants, with two in the discontinued cTPV25 and two with the TPV22 in the early-feasibility study.
- Four reinterventions, two with the discontinued cTPV25 and two valve-in-valve procedures with the mTPV25 in the continued-access study, one with stent placement in the right ventricular outflow tract.
Dr. Levi and coinvestigators also performed a breakdown of 1-year outcomes – freedom from PR, stenosis, and interventions – by device: 95.1% for TPV22; 89.7% for mTPV25; and 73.3% for the discontinued cTPV25.
Although the valve is indicated for adolescents and adults, most of the patients in the three studies were adults, with an average weight of 165 pounds (75 kg) who have had PR for decades, said Dr. Levi, an interventional pediatric cardiologist at the University of California, Los Angeles. “With a device like this we are hopefully shifting to treating that a little bit earlier, but fortunately we don’t usually need to treat it before puberty.” The 25-mm TPV gives “a really nice landing zone” for future valve placement. “The goal is to keep patients out of the operating room for at least a few decades if not their whole lives,” he said.
Dr. Levi said the Harmony investigators will follow outcomes with the 22- and modified 25-mm Harmony valves, both of which remain commercially available, out to 10 years.
The study represents the first collective cohort evaluating the Harmony device across the early feasibility, continued access and pivotal studies, said Brian Morray, MD. “It’s important that people understand that evolution and how that impacts the way we look at outcomes, because when you aggregate the data, particularly for the TPV25, some of the procedural outcomes and the adverse events are no longer really reflective in the current time frame.”
These Harmony results “represent another big step in the evolution of interventional cardiology and will be up there with development of the Melody valve and the utility and the use of the Sapien valve in the pulmonary position,” said Dr. Morray, an associate professor of pediatrics at the University of Washington, Seattle, and an interventional cardiologist at Seattle Children’s Hospital.
Dr. Levi disclosed he is a consultant to Medtronic and Edwards Lifesciences. Dr. Morray disclosed he is a clinical proctor for Abbott and a consultant to Medtronic, but not for the Harmony device.
The 1-year results of the Harmony transcatheter pulmonary valve to treat severe pulmonary regurgitation have shown a high rate of eliminating or reducing the degree of symptoms as well as freedom from endocarditis, sustained ventricular tachycardia, and the need for further interventions.
“Simply put, the good news is no endocarditis,” said Daniel S. Levi, MD, in presenting results from three different studies with 108 patients who received three different iterations of the device at the Society for Cardiovascular Angiography & Interventions annual scientific sessions.
“Endocarditis has been an issue for us in the pulmonary position; we have yet to have an endocarditis in these patients in 1 year,” he stressed.
The studies evaluated three different versions of the Harmony valve: TPV22 (42 patients), the first version with a 22-mm diameter; the Clinical TPV25 (17 patients), the first iteration of a 25 mm–wide device that has since been discontinued; and the modified TPV25 (45 patients), the second version of the 25-mm valve. The three studies are the early feasibility study of the TPV22, the continued-access study of the TPV22 and the mTPV25, and the pivotal study that included all three versions.
At baseline, 89% of patients had severe and 11% had moderate pulmonary regurgitation (PR). At 1 year, 92% had none or trace PR, 3% had mild PR, and 4% moderate disease.
Dr. Levi said the device “speaks for itself” in the results he presented. They include no deaths, no heart attacks, and no pulmonary thromboembolism. Other key outcomes include:
- One major stent fracture in one of the early feasibility study patients at 1-month follow-up.
- Four explants, with two in the discontinued cTPV25 and two with the TPV22 in the early-feasibility study.
- Four reinterventions, two with the discontinued cTPV25 and two valve-in-valve procedures with the mTPV25 in the continued-access study, one with stent placement in the right ventricular outflow tract.
Dr. Levi and coinvestigators also performed a breakdown of 1-year outcomes – freedom from PR, stenosis, and interventions – by device: 95.1% for TPV22; 89.7% for mTPV25; and 73.3% for the discontinued cTPV25.
Although the valve is indicated for adolescents and adults, most of the patients in the three studies were adults, with an average weight of 165 pounds (75 kg) who have had PR for decades, said Dr. Levi, an interventional pediatric cardiologist at the University of California, Los Angeles. “With a device like this we are hopefully shifting to treating that a little bit earlier, but fortunately we don’t usually need to treat it before puberty.” The 25-mm TPV gives “a really nice landing zone” for future valve placement. “The goal is to keep patients out of the operating room for at least a few decades if not their whole lives,” he said.
Dr. Levi said the Harmony investigators will follow outcomes with the 22- and modified 25-mm Harmony valves, both of which remain commercially available, out to 10 years.
The study represents the first collective cohort evaluating the Harmony device across the early feasibility, continued access and pivotal studies, said Brian Morray, MD. “It’s important that people understand that evolution and how that impacts the way we look at outcomes, because when you aggregate the data, particularly for the TPV25, some of the procedural outcomes and the adverse events are no longer really reflective in the current time frame.”
These Harmony results “represent another big step in the evolution of interventional cardiology and will be up there with development of the Melody valve and the utility and the use of the Sapien valve in the pulmonary position,” said Dr. Morray, an associate professor of pediatrics at the University of Washington, Seattle, and an interventional cardiologist at Seattle Children’s Hospital.
Dr. Levi disclosed he is a consultant to Medtronic and Edwards Lifesciences. Dr. Morray disclosed he is a clinical proctor for Abbott and a consultant to Medtronic, but not for the Harmony device.
FROM SCAI 2022
ADA updates on finerenone, SGLT2 inhibitors, and race-based eGFR
As it gears up for the first in-person scientific sessions for 3 years, the American Diabetes Association has issued an addendum to its most recent annual clinical practice recommendations published in December 2021, the 2022 Standards of Medical Care in Diabetes, based on recent trial evidence and consensus.
The update informs clinicians about:
- The effect of the nonsteroidal mineralocorticoid antagonist (Kerendia) on cardiovascular outcomes in patients with type 2 diabetes and chronic kidney disease.
- The effect of a sodium-glucose cotransporter 2 (SGLT2) inhibitor on heart failure and renal outcomes in patients with type 2 diabetes.
The National Kidney Foundation and the American Society of Nephrology Task Force recommendation to remove race in the formula for calculating estimated glomerular filtration rate (eGFR).
“This is the fifth year that we are able to update the Standards of Care after it has been published through our Living Standards of Care updates, making it possible to give diabetes care providers the most important information and the latest evidence relevant to their practice,” Robert A. Gabbay, MD, PhD, ADA chief scientific and medical officer, said in a press release from the organization.
The addendum, entitled, “Living Standards of Care,” updates Section 10, “Cardiovascular Disease and Risk Management,” and Section 11, “Chronic Kidney Disease and Risk Management” of the 2022 Standards of Medical Care in Diabetes.
The amendments were approved by the ADA Professional Practice Committee, which is responsible for developing the Standards of Care. The American College of Cardiology reviewed and endorsed the section on CVD and risk management.
The Living Standards Update was published online in Diabetes Care.
CVD and risk management
In the Addendum to Section 10, “Cardiovascular Disease and Risk Management,” the committee writes:
- “For patients with type 2 diabetes and chronic kidney disease treated with maximum tolerated doses of ACE inhibitors or angiotensin receptor blockers, addition of finerenone should be considered to improve cardiovascular outcomes and reduce the risk of chronic kidney disease progression. A”
- “Patients with type 2 diabetes and chronic kidney disease should be considered for treatment with finerenone to reduce cardiovascular outcomes and the risk of chronic kidney disease progression.”
- “In patients with type 2 diabetes and established heart failure with either preserved or reduced ejection fraction, an SGLT2 inhibitor [with proven benefit in this patient population] is recommended to reduce risk of worsening heart failure, hospitalizations for heart failure, and cardiovascular death. ”
In the section “Statin Treatment,” the addendum no longer states that “a prospective trial of a newer fibrate ... is ongoing,” because that trial investigating pemafibrate (Kowa), a novel selective peroxisome proliferator-activated receptor alpha modulator (or fibrate), has been discontinued.
Chronic kidney disease and risk management
In the Addendum to Section 11, “Chronic Kidney Disease and Risk Management,” the committee writes:
- “Traditionally, eGFR is calculated from serum creatinine using a validated formula. The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation is preferred. ... Historically, a correction factor for muscle mass was included in a modified equation for African Americans; however, due to various issues with inequities, it was decided to the equation such that it applies to all. Hence, a committee was convened, resulting in the recommendation for immediate implementation of the CKD-EPI creatinine equation refit without the race variable in all laboratories in the U.S.” (This is based on an National Kidney Foundation and American Society of Nephrology Task Force recommendation.)
- “Additionally, increased use of cystatin C, especially to confirm estimated GFR in adults who are at risk for or have chronic kidney disease, because combining filtration markers (creatinine and cystatin C) is more accurate and would support better clinical decisions than either marker alone.”
Evidence from clinical trials
The update is based on findings from the following clinical trials:
- Efficacy and Safety of Finerenone in Subjects With Type 2 Diabetes Mellitus and Diabetic Kidney Disease (FIDELIO-DKD)
- Efficacy and Safety of Finerenone in Subjects With Type 2 Diabetes Mellitus and the Clinical Diagnosis of Diabetic Kidney Disease (FIGARO-DKD)
- FIDELITY, a prespecified pooled analysis of FIDELIO-DKD and FIGARO-DKD
- Empagliflozin Outcome Trial in Patients With Chronic Heart Failure With Preserved Ejection Fraction (EMPEROR-Preserved)
- Effects of Dapagliflozin on Biomarkers, Symptoms and Functional Status in Patients with PRESERVED Ejection Fraction Heart Failure (PRESERVED-HF)
- Pemafibrate to Reduce Cardiovascular Outcomes by Reducing Triglycerides in Patients with Diabetes (PROMINENT).
A version of this article first appeared on Medscape.com.
As it gears up for the first in-person scientific sessions for 3 years, the American Diabetes Association has issued an addendum to its most recent annual clinical practice recommendations published in December 2021, the 2022 Standards of Medical Care in Diabetes, based on recent trial evidence and consensus.
The update informs clinicians about:
- The effect of the nonsteroidal mineralocorticoid antagonist (Kerendia) on cardiovascular outcomes in patients with type 2 diabetes and chronic kidney disease.
- The effect of a sodium-glucose cotransporter 2 (SGLT2) inhibitor on heart failure and renal outcomes in patients with type 2 diabetes.
The National Kidney Foundation and the American Society of Nephrology Task Force recommendation to remove race in the formula for calculating estimated glomerular filtration rate (eGFR).
“This is the fifth year that we are able to update the Standards of Care after it has been published through our Living Standards of Care updates, making it possible to give diabetes care providers the most important information and the latest evidence relevant to their practice,” Robert A. Gabbay, MD, PhD, ADA chief scientific and medical officer, said in a press release from the organization.
The addendum, entitled, “Living Standards of Care,” updates Section 10, “Cardiovascular Disease and Risk Management,” and Section 11, “Chronic Kidney Disease and Risk Management” of the 2022 Standards of Medical Care in Diabetes.
The amendments were approved by the ADA Professional Practice Committee, which is responsible for developing the Standards of Care. The American College of Cardiology reviewed and endorsed the section on CVD and risk management.
The Living Standards Update was published online in Diabetes Care.
CVD and risk management
In the Addendum to Section 10, “Cardiovascular Disease and Risk Management,” the committee writes:
- “For patients with type 2 diabetes and chronic kidney disease treated with maximum tolerated doses of ACE inhibitors or angiotensin receptor blockers, addition of finerenone should be considered to improve cardiovascular outcomes and reduce the risk of chronic kidney disease progression. A”
- “Patients with type 2 diabetes and chronic kidney disease should be considered for treatment with finerenone to reduce cardiovascular outcomes and the risk of chronic kidney disease progression.”
- “In patients with type 2 diabetes and established heart failure with either preserved or reduced ejection fraction, an SGLT2 inhibitor [with proven benefit in this patient population] is recommended to reduce risk of worsening heart failure, hospitalizations for heart failure, and cardiovascular death. ”
In the section “Statin Treatment,” the addendum no longer states that “a prospective trial of a newer fibrate ... is ongoing,” because that trial investigating pemafibrate (Kowa), a novel selective peroxisome proliferator-activated receptor alpha modulator (or fibrate), has been discontinued.
Chronic kidney disease and risk management
In the Addendum to Section 11, “Chronic Kidney Disease and Risk Management,” the committee writes:
- “Traditionally, eGFR is calculated from serum creatinine using a validated formula. The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation is preferred. ... Historically, a correction factor for muscle mass was included in a modified equation for African Americans; however, due to various issues with inequities, it was decided to the equation such that it applies to all. Hence, a committee was convened, resulting in the recommendation for immediate implementation of the CKD-EPI creatinine equation refit without the race variable in all laboratories in the U.S.” (This is based on an National Kidney Foundation and American Society of Nephrology Task Force recommendation.)
- “Additionally, increased use of cystatin C, especially to confirm estimated GFR in adults who are at risk for or have chronic kidney disease, because combining filtration markers (creatinine and cystatin C) is more accurate and would support better clinical decisions than either marker alone.”
Evidence from clinical trials
The update is based on findings from the following clinical trials:
- Efficacy and Safety of Finerenone in Subjects With Type 2 Diabetes Mellitus and Diabetic Kidney Disease (FIDELIO-DKD)
- Efficacy and Safety of Finerenone in Subjects With Type 2 Diabetes Mellitus and the Clinical Diagnosis of Diabetic Kidney Disease (FIGARO-DKD)
- FIDELITY, a prespecified pooled analysis of FIDELIO-DKD and FIGARO-DKD
- Empagliflozin Outcome Trial in Patients With Chronic Heart Failure With Preserved Ejection Fraction (EMPEROR-Preserved)
- Effects of Dapagliflozin on Biomarkers, Symptoms and Functional Status in Patients with PRESERVED Ejection Fraction Heart Failure (PRESERVED-HF)
- Pemafibrate to Reduce Cardiovascular Outcomes by Reducing Triglycerides in Patients with Diabetes (PROMINENT).
A version of this article first appeared on Medscape.com.
As it gears up for the first in-person scientific sessions for 3 years, the American Diabetes Association has issued an addendum to its most recent annual clinical practice recommendations published in December 2021, the 2022 Standards of Medical Care in Diabetes, based on recent trial evidence and consensus.
The update informs clinicians about:
- The effect of the nonsteroidal mineralocorticoid antagonist (Kerendia) on cardiovascular outcomes in patients with type 2 diabetes and chronic kidney disease.
- The effect of a sodium-glucose cotransporter 2 (SGLT2) inhibitor on heart failure and renal outcomes in patients with type 2 diabetes.
The National Kidney Foundation and the American Society of Nephrology Task Force recommendation to remove race in the formula for calculating estimated glomerular filtration rate (eGFR).
“This is the fifth year that we are able to update the Standards of Care after it has been published through our Living Standards of Care updates, making it possible to give diabetes care providers the most important information and the latest evidence relevant to their practice,” Robert A. Gabbay, MD, PhD, ADA chief scientific and medical officer, said in a press release from the organization.
The addendum, entitled, “Living Standards of Care,” updates Section 10, “Cardiovascular Disease and Risk Management,” and Section 11, “Chronic Kidney Disease and Risk Management” of the 2022 Standards of Medical Care in Diabetes.
The amendments were approved by the ADA Professional Practice Committee, which is responsible for developing the Standards of Care. The American College of Cardiology reviewed and endorsed the section on CVD and risk management.
The Living Standards Update was published online in Diabetes Care.
CVD and risk management
In the Addendum to Section 10, “Cardiovascular Disease and Risk Management,” the committee writes:
- “For patients with type 2 diabetes and chronic kidney disease treated with maximum tolerated doses of ACE inhibitors or angiotensin receptor blockers, addition of finerenone should be considered to improve cardiovascular outcomes and reduce the risk of chronic kidney disease progression. A”
- “Patients with type 2 diabetes and chronic kidney disease should be considered for treatment with finerenone to reduce cardiovascular outcomes and the risk of chronic kidney disease progression.”
- “In patients with type 2 diabetes and established heart failure with either preserved or reduced ejection fraction, an SGLT2 inhibitor [with proven benefit in this patient population] is recommended to reduce risk of worsening heart failure, hospitalizations for heart failure, and cardiovascular death. ”
In the section “Statin Treatment,” the addendum no longer states that “a prospective trial of a newer fibrate ... is ongoing,” because that trial investigating pemafibrate (Kowa), a novel selective peroxisome proliferator-activated receptor alpha modulator (or fibrate), has been discontinued.
Chronic kidney disease and risk management
In the Addendum to Section 11, “Chronic Kidney Disease and Risk Management,” the committee writes:
- “Traditionally, eGFR is calculated from serum creatinine using a validated formula. The Chronic Kidney Disease Epidemiology Collaboration (CKD-EPI) equation is preferred. ... Historically, a correction factor for muscle mass was included in a modified equation for African Americans; however, due to various issues with inequities, it was decided to the equation such that it applies to all. Hence, a committee was convened, resulting in the recommendation for immediate implementation of the CKD-EPI creatinine equation refit without the race variable in all laboratories in the U.S.” (This is based on an National Kidney Foundation and American Society of Nephrology Task Force recommendation.)
- “Additionally, increased use of cystatin C, especially to confirm estimated GFR in adults who are at risk for or have chronic kidney disease, because combining filtration markers (creatinine and cystatin C) is more accurate and would support better clinical decisions than either marker alone.”
Evidence from clinical trials
The update is based on findings from the following clinical trials:
- Efficacy and Safety of Finerenone in Subjects With Type 2 Diabetes Mellitus and Diabetic Kidney Disease (FIDELIO-DKD)
- Efficacy and Safety of Finerenone in Subjects With Type 2 Diabetes Mellitus and the Clinical Diagnosis of Diabetic Kidney Disease (FIGARO-DKD)
- FIDELITY, a prespecified pooled analysis of FIDELIO-DKD and FIGARO-DKD
- Empagliflozin Outcome Trial in Patients With Chronic Heart Failure With Preserved Ejection Fraction (EMPEROR-Preserved)
- Effects of Dapagliflozin on Biomarkers, Symptoms and Functional Status in Patients with PRESERVED Ejection Fraction Heart Failure (PRESERVED-HF)
- Pemafibrate to Reduce Cardiovascular Outcomes by Reducing Triglycerides in Patients with Diabetes (PROMINENT).
A version of this article first appeared on Medscape.com.
FROM DIABETES CARE
Parkinson’s disease could be hiding behind those nightmares
Living the dream, diagnosing the nightmare
Does a bad dream mean you should be consulting your doctor about an impending neurologic disease? Maybe.
New research published in eClinicalMedicine suggests that, for some people, bad dreams and nightmares have been associated with developing Parkinson’s disease later in life. Dr. Abidemi I. Otaiku of the University of Birmingham (England) analyzed data from a cohort study involving 3,818 older men, of whom 2.3% were diagnosed with Parkinson’s during the 12 years of follow-up.
Dr. Otaiku found those with frequent nightmares – at least once per week – were twice as likely to develop Parkinson’s than were those without, with most of the diagnoses coming in the first 5 years.
Although more research needs to be done, “identifying the significance of bad dreams and nightmares could indicate that individuals who experience changes to their dreams in older age – without any obvious trigger – should seek medical advice,” he said in a Eurekalert statement.
Dr. Otaiku pointed out that studying dreams can tell us a lot about how our brains work and are structured. By using electroencephalography, Dr. Otaiku plans to look into the biological reasons for why we dream the way we do.
So could it be that those killer clowns are actually giving you a heads up on your health?
Maybe next time try a paper route
There’s just no winning with teenagers sometimes. You tell them to go outside, they’ll sit in the dark playing video games all night. You tell them to get better grades, they’ll skip school. You tell them to get a hobby, they’ll scam the German government for millions of euros.
The COVID-19 pandemic has been tricky for governments to manage. Massive amounts of infrastructure needed to be set up, and that means corners got cut. Germany was no exception in this regard; the government entrusted the Kassenärztlichen Vereinigung, a doctor’s association, with overseeing COVID testing and payment at private test centers. To make things a bit easier, all they required private test centers to provide to receive reimbursement was an invoice.
This is where our 17-year-old from Freiburg comes in. In a spark of entrepreneurial genius, he decided to falsify documents and create an entirely fictional COVID test center. The KV approved it, and between March and July of 2021, he sent in thousands of fake invoices. Over that 4-month period, he submitted 500,000 invoices and received 5.7 million euros as compensation. That’s a few thousand tests per day, which was absolutely absurd, but he avoided scrutiny for months.
In the end, it wasn’t even the KV that noticed the fraud, but the bank. A bank employee noticed millions flowing into the account of a teenager and suspected money laundering, alerting the government. Fortunately for our young friend, since he was under 18 when he hatched his scheme, he was tried as a minor, avoiding jail time. His ill-gotten gains were confiscated, he has to pay a relatively minimal fine, and he will be on probation for 1 year. And presumably, he’ll be on the receiving end of the grounding of a lifetime.
You look like I need more sleep
Like most people, not getting our beauty sleep can make us look tired and feel less attractive, but a new study from Sweden shows that the sleep deprived also are more likely to find others less attractive. That’s probably not a good finding for singles who often go out trying to meet someone after a long day of work.
For the study, 45 young men and women were required to spend one night with no sleep and then another night with the possibility of 8 hours of sleep. The following mornings, eye-tracking technology was used as they looked at images of happy, angry, fearful, and neutral faces. The subjects then rated the faces for attractiveness, trustworthiness, and healthiness.
“The finding that sleep-deprived subjects in our experiment rated angry faces as less trustworthy and healthy-looking and neutral and fearful faces as less attractive indicates that sleep loss is associated with more negative social impressions of others,” senior author Christian Benedict of Uppsala University said in a statement.
When we are sleep deprived, the researchers added, we might not stop to really look at someone else, which has a negative impact on how we perceive people because we are not focusing on what their facial expressions are really telling us.
We already knew that not sleeping well has many negative effects on us, but now – thank you very much, science – we have something else to think about. Better hope your crush at work gets enough sleep so you’ll be accurately noticed.
The expanding-hole illusion of science
Time for a LOTME-style reality check: I think, therefore I am.
So far, so good. Next step: I think, therefore I am. I think.
Works for us. Now for the biggie: I think I am seeing the black hole in the middle of this image expanding.
Does that work for you? Do you perceive the black hole as expanding? If you do, then you fit in with the 86% of subjects in a recent study who perceived the same thing.
Lead author Bruno Laeng of the University of Oslo explained the effect in a statement from Frontiers Science News. “The circular smear or shadow gradient of the central black hole evokes a marked impression of optic flow, as if the observer were heading forward into a hole or tunnel. ... The pupil reacts to how we perceive light – even if this ‘light’ is imaginary like in the illusion – and not just to the amount of light energy that actually enters the eye.”
The illusion is so good at deceiving the brain “that it even prompts a dilation reflex of the pupils to let in more light, just as would happen if we were really moving into a dark area,” the investigators said.
Of the 50 men and women who had their eye movements measured while looking at the illusion, only 14% didn’t perceive the illusion when the hole was black. When the hole was a color, that figure went up to 20%. There also was a strong dilation reflex with black holes, but colored holes caused the subjects’ pupils to constrict, they noted.
Dr. Laeng and his associates can’t explain why some people don’t see the movement, but they did offer this: “Pupils’ dilation or contraction reflex is not a closed-loop mechanism, like a photocell opening a door, impervious to any other information than the actual amount of light stimulating the photoreceptor. Rather, the eye adjusts to perceived and even imagined light, not simply to physical energy.”
And now, back to our reality check: We think we perceive the light of a cheeseburger, therefore it’s time for lunch.
Living the dream, diagnosing the nightmare
Does a bad dream mean you should be consulting your doctor about an impending neurologic disease? Maybe.
New research published in eClinicalMedicine suggests that, for some people, bad dreams and nightmares have been associated with developing Parkinson’s disease later in life. Dr. Abidemi I. Otaiku of the University of Birmingham (England) analyzed data from a cohort study involving 3,818 older men, of whom 2.3% were diagnosed with Parkinson’s during the 12 years of follow-up.
Dr. Otaiku found those with frequent nightmares – at least once per week – were twice as likely to develop Parkinson’s than were those without, with most of the diagnoses coming in the first 5 years.
Although more research needs to be done, “identifying the significance of bad dreams and nightmares could indicate that individuals who experience changes to their dreams in older age – without any obvious trigger – should seek medical advice,” he said in a Eurekalert statement.
Dr. Otaiku pointed out that studying dreams can tell us a lot about how our brains work and are structured. By using electroencephalography, Dr. Otaiku plans to look into the biological reasons for why we dream the way we do.
So could it be that those killer clowns are actually giving you a heads up on your health?
Maybe next time try a paper route
There’s just no winning with teenagers sometimes. You tell them to go outside, they’ll sit in the dark playing video games all night. You tell them to get better grades, they’ll skip school. You tell them to get a hobby, they’ll scam the German government for millions of euros.
The COVID-19 pandemic has been tricky for governments to manage. Massive amounts of infrastructure needed to be set up, and that means corners got cut. Germany was no exception in this regard; the government entrusted the Kassenärztlichen Vereinigung, a doctor’s association, with overseeing COVID testing and payment at private test centers. To make things a bit easier, all they required private test centers to provide to receive reimbursement was an invoice.
This is where our 17-year-old from Freiburg comes in. In a spark of entrepreneurial genius, he decided to falsify documents and create an entirely fictional COVID test center. The KV approved it, and between March and July of 2021, he sent in thousands of fake invoices. Over that 4-month period, he submitted 500,000 invoices and received 5.7 million euros as compensation. That’s a few thousand tests per day, which was absolutely absurd, but he avoided scrutiny for months.
In the end, it wasn’t even the KV that noticed the fraud, but the bank. A bank employee noticed millions flowing into the account of a teenager and suspected money laundering, alerting the government. Fortunately for our young friend, since he was under 18 when he hatched his scheme, he was tried as a minor, avoiding jail time. His ill-gotten gains were confiscated, he has to pay a relatively minimal fine, and he will be on probation for 1 year. And presumably, he’ll be on the receiving end of the grounding of a lifetime.
You look like I need more sleep
Like most people, not getting our beauty sleep can make us look tired and feel less attractive, but a new study from Sweden shows that the sleep deprived also are more likely to find others less attractive. That’s probably not a good finding for singles who often go out trying to meet someone after a long day of work.
For the study, 45 young men and women were required to spend one night with no sleep and then another night with the possibility of 8 hours of sleep. The following mornings, eye-tracking technology was used as they looked at images of happy, angry, fearful, and neutral faces. The subjects then rated the faces for attractiveness, trustworthiness, and healthiness.
“The finding that sleep-deprived subjects in our experiment rated angry faces as less trustworthy and healthy-looking and neutral and fearful faces as less attractive indicates that sleep loss is associated with more negative social impressions of others,” senior author Christian Benedict of Uppsala University said in a statement.
When we are sleep deprived, the researchers added, we might not stop to really look at someone else, which has a negative impact on how we perceive people because we are not focusing on what their facial expressions are really telling us.
We already knew that not sleeping well has many negative effects on us, but now – thank you very much, science – we have something else to think about. Better hope your crush at work gets enough sleep so you’ll be accurately noticed.
The expanding-hole illusion of science
Time for a LOTME-style reality check: I think, therefore I am.
So far, so good. Next step: I think, therefore I am. I think.
Works for us. Now for the biggie: I think I am seeing the black hole in the middle of this image expanding.
Does that work for you? Do you perceive the black hole as expanding? If you do, then you fit in with the 86% of subjects in a recent study who perceived the same thing.
Lead author Bruno Laeng of the University of Oslo explained the effect in a statement from Frontiers Science News. “The circular smear or shadow gradient of the central black hole evokes a marked impression of optic flow, as if the observer were heading forward into a hole or tunnel. ... The pupil reacts to how we perceive light – even if this ‘light’ is imaginary like in the illusion – and not just to the amount of light energy that actually enters the eye.”
The illusion is so good at deceiving the brain “that it even prompts a dilation reflex of the pupils to let in more light, just as would happen if we were really moving into a dark area,” the investigators said.
Of the 50 men and women who had their eye movements measured while looking at the illusion, only 14% didn’t perceive the illusion when the hole was black. When the hole was a color, that figure went up to 20%. There also was a strong dilation reflex with black holes, but colored holes caused the subjects’ pupils to constrict, they noted.
Dr. Laeng and his associates can’t explain why some people don’t see the movement, but they did offer this: “Pupils’ dilation or contraction reflex is not a closed-loop mechanism, like a photocell opening a door, impervious to any other information than the actual amount of light stimulating the photoreceptor. Rather, the eye adjusts to perceived and even imagined light, not simply to physical energy.”
And now, back to our reality check: We think we perceive the light of a cheeseburger, therefore it’s time for lunch.
Living the dream, diagnosing the nightmare
Does a bad dream mean you should be consulting your doctor about an impending neurologic disease? Maybe.
New research published in eClinicalMedicine suggests that, for some people, bad dreams and nightmares have been associated with developing Parkinson’s disease later in life. Dr. Abidemi I. Otaiku of the University of Birmingham (England) analyzed data from a cohort study involving 3,818 older men, of whom 2.3% were diagnosed with Parkinson’s during the 12 years of follow-up.
Dr. Otaiku found those with frequent nightmares – at least once per week – were twice as likely to develop Parkinson’s than were those without, with most of the diagnoses coming in the first 5 years.
Although more research needs to be done, “identifying the significance of bad dreams and nightmares could indicate that individuals who experience changes to their dreams in older age – without any obvious trigger – should seek medical advice,” he said in a Eurekalert statement.
Dr. Otaiku pointed out that studying dreams can tell us a lot about how our brains work and are structured. By using electroencephalography, Dr. Otaiku plans to look into the biological reasons for why we dream the way we do.
So could it be that those killer clowns are actually giving you a heads up on your health?
Maybe next time try a paper route
There’s just no winning with teenagers sometimes. You tell them to go outside, they’ll sit in the dark playing video games all night. You tell them to get better grades, they’ll skip school. You tell them to get a hobby, they’ll scam the German government for millions of euros.
The COVID-19 pandemic has been tricky for governments to manage. Massive amounts of infrastructure needed to be set up, and that means corners got cut. Germany was no exception in this regard; the government entrusted the Kassenärztlichen Vereinigung, a doctor’s association, with overseeing COVID testing and payment at private test centers. To make things a bit easier, all they required private test centers to provide to receive reimbursement was an invoice.
This is where our 17-year-old from Freiburg comes in. In a spark of entrepreneurial genius, he decided to falsify documents and create an entirely fictional COVID test center. The KV approved it, and between March and July of 2021, he sent in thousands of fake invoices. Over that 4-month period, he submitted 500,000 invoices and received 5.7 million euros as compensation. That’s a few thousand tests per day, which was absolutely absurd, but he avoided scrutiny for months.
In the end, it wasn’t even the KV that noticed the fraud, but the bank. A bank employee noticed millions flowing into the account of a teenager and suspected money laundering, alerting the government. Fortunately for our young friend, since he was under 18 when he hatched his scheme, he was tried as a minor, avoiding jail time. His ill-gotten gains were confiscated, he has to pay a relatively minimal fine, and he will be on probation for 1 year. And presumably, he’ll be on the receiving end of the grounding of a lifetime.
You look like I need more sleep
Like most people, not getting our beauty sleep can make us look tired and feel less attractive, but a new study from Sweden shows that the sleep deprived also are more likely to find others less attractive. That’s probably not a good finding for singles who often go out trying to meet someone after a long day of work.
For the study, 45 young men and women were required to spend one night with no sleep and then another night with the possibility of 8 hours of sleep. The following mornings, eye-tracking technology was used as they looked at images of happy, angry, fearful, and neutral faces. The subjects then rated the faces for attractiveness, trustworthiness, and healthiness.
“The finding that sleep-deprived subjects in our experiment rated angry faces as less trustworthy and healthy-looking and neutral and fearful faces as less attractive indicates that sleep loss is associated with more negative social impressions of others,” senior author Christian Benedict of Uppsala University said in a statement.
When we are sleep deprived, the researchers added, we might not stop to really look at someone else, which has a negative impact on how we perceive people because we are not focusing on what their facial expressions are really telling us.
We already knew that not sleeping well has many negative effects on us, but now – thank you very much, science – we have something else to think about. Better hope your crush at work gets enough sleep so you’ll be accurately noticed.
The expanding-hole illusion of science
Time for a LOTME-style reality check: I think, therefore I am.
So far, so good. Next step: I think, therefore I am. I think.
Works for us. Now for the biggie: I think I am seeing the black hole in the middle of this image expanding.
Does that work for you? Do you perceive the black hole as expanding? If you do, then you fit in with the 86% of subjects in a recent study who perceived the same thing.
Lead author Bruno Laeng of the University of Oslo explained the effect in a statement from Frontiers Science News. “The circular smear or shadow gradient of the central black hole evokes a marked impression of optic flow, as if the observer were heading forward into a hole or tunnel. ... The pupil reacts to how we perceive light – even if this ‘light’ is imaginary like in the illusion – and not just to the amount of light energy that actually enters the eye.”
The illusion is so good at deceiving the brain “that it even prompts a dilation reflex of the pupils to let in more light, just as would happen if we were really moving into a dark area,” the investigators said.
Of the 50 men and women who had their eye movements measured while looking at the illusion, only 14% didn’t perceive the illusion when the hole was black. When the hole was a color, that figure went up to 20%. There also was a strong dilation reflex with black holes, but colored holes caused the subjects’ pupils to constrict, they noted.
Dr. Laeng and his associates can’t explain why some people don’t see the movement, but they did offer this: “Pupils’ dilation or contraction reflex is not a closed-loop mechanism, like a photocell opening a door, impervious to any other information than the actual amount of light stimulating the photoreceptor. Rather, the eye adjusts to perceived and even imagined light, not simply to physical energy.”
And now, back to our reality check: We think we perceive the light of a cheeseburger, therefore it’s time for lunch.
Data concerns mount despite ISCHEMIA substudy correction
A long-standing request to clarify data irregularities in a 2021 ISCHEMIA substudy resulted in the publication of one correction, with a second correction in the works.
Further, the lone cardiac surgeon on the ISCHEMIA trial steering committee, T. Bruce Ferguson, MD, has resigned from the committee, citing a series of factors, including an inability to reconcile data in the substudy and two additional ISCHEMIA papers currently under review.
As previously reported, cardiac surgeons Faisal Bakaeen, MD, and Joseph Sabik III, MD, notified the journal Circulation in March that the Dr. Reynolds et al. substudy had inconsistencies between data in the main paper and supplemental tables detailing patients’ coronary artery disease (CAD) and ischemia severity.
The substudy found that CAD severity, classified using the modified Duke Prognostic Index score, predicted 4-year mortality and myocardial infarction in the landmark trial.
Circulation published a correction for the substudy on May 20, explaining that a “formatting error” resulted in data being incorrectly presented in two supplemental tables. It does not mention the surgeons’ letter to the editor, which can be found by clicking the “Q” icon below the paper.
Dr. Bakaeen, from the Cleveland Clinic, and Dr. Sabik, from University Hospitals Cleveland Medical Center, told this news organization that they submitted a second letter to editor on May 23 stating that “significant discrepancies” persist.
For example, 7.2% of participants (179/2,475) had moderate stenosis in one coronary vessel in the corrected Reynolds paper (Supplemental Tables I and II) versus 23.3% (697/2,986) in the primary ISCHEMIA manuscript published in the New England Journal of Medicine (Table S5).
The number of patients with left main ≥ 50% stenosis is, surprisingly, identical in both manuscripts, at 40, they said, despite the denominator dropping from 3,845 participants in the primary study to 2,475 participants with an evaluable modified Duke Prognostic Index score in the substudy.
The number of participants with previous coronary artery bypass surgery (CABG) is also hard to reconcile between manuscripts and, importantly, the substudy doesn’t distinguish between lesions bypassed with patent grafts and unbypassed grafts or those with occluded grafts.
“The fact that the authors are working on a second correction is appreciated, but with such numerous inconsistencies, at some point you reach the conclusion that an independent review of the data is the right thing to do for such a high-profile study that received over $100 million of National Institutes of Health support,” Dr. Bakaeen said. “No one should be satisfied or happy if there is any shadow of doubt here regarding the accuracy of the data.”
Speaking to this news organization prior to the first correction, lead substudy author Harmony Reynolds, MD, NYU Langone Health, detailed in depth how the formatting glitch inadvertently upgraded the number of diseased vessels and lesion severity in two supplemental tables.
She noted, as does the correction, that the data were correctly reported in the main manuscript tables and figures and in the remainder of the supplement.
Dr. Reynolds also said they’re in the process of preparing the data for “public sharing soon,” including the Duke Prognostic score at all levels. Dr. Reynolds had not responded by the time of this publication to a request for further details or a timeline.
The surgeons’ first letter to the editor was rejected because it was submitted outside the journal’s 6-week window for letters and was posted as a public comment April 18 via the research platform, Remarq.
Dr. Bakaeen said they were told their second letter was rejected because of Circulation’s “long standing policy” not to publish letters to the editor regarding manuscript corrections but that a correction is being issued.
Circulation editor-in-chief Joseph A. Hill, MD, PhD, UT Southwestern Medical Center, Dallas, said via email that the journal will update its online policies to more clearly state its requirements for publication and that it has been fully transparent with Dr. Bakaeen and Dr. Sabik regarding where it is in the current process.
He confirmed the surgeons were told June 1 that “after additional review, the authors have determined that whereas there are no errors, an additional minor correction is warranted to clarify the description of the study population and sample size. This correction will be published soon.”
Dr. Hill thanked Dr. Bakaeen and Dr. Sabik for bringing the matter to their attention and said, “It is also important to note that both updates to the Dr. Reynolds et al. paper are published as corrections. However, the results and conclusions of the paper remain unchanged.”
The bigger issue
Importantly, the recent AHA/ACC/SCAI coronary revascularization guidelines used ISCHEMIA data to support downgrading the CABG recommendation from class 1 to class 2B in 3-vessel CAD with normal left ventricular function and from class 1 to 2a in 3-vessel CAD with mild to moderate left ventricular dysfunction.
The trial reported no significant benefit with an initial invasive strategy over medical therapy in stable patients with moderate or severe CAD. European guidelines, however, give CABG a class I recommendation for severe three- or two-vessel disease with proximal left anterior descending (LAD) involvement.
Dr. Sabik and Dr. Bakaeen say patients with severe three- or two-vessel disease with proximal LAD involvement were underrepresented in the randomized trials cited by the guidelines but are the typical CABG patients in modern-day practice.
“That is why it is important to determine the severity of CAD accurately and definitively in ISCHEMIA,” Dr. Bakaeen said. “But the more we look at the data, the more errors we encounter.”
Two U.S. surgical groups that were part of the writing process withdrew support for the revascularization guidelines, as did several international surgical societies, citing the data used to support the changes as well as the makeup of the writing committee.
Dr. Ferguson, now with the medical device manufacturer Perfusio, said he resigned from the ISCHEMIA steering committee on May 8 after being unable to accurately reconcile the ISCHEMIA surgical subset data with the Reynolds substudy and two other ISCHEMIA papers on the CABG subset. At least one of those papers, he noted, was being hurriedly pushed through the review process to counter concerns raised by surgeons regarding interpretation of ISCHEMIA.
“This is the first time in my lengthy career in medicine where a level of political agendaism was actually driving the truck,” he said. “It was appalling to me, and I would have said that if I was an interventional cardiologist looking at the results.”
ISCHEMIA results have also been touted as representing state-of-the-art care around the world, but that didn’t appear to be the case for the surgical subset where, for example, China and India performed most CABGs off pump, and globally there was considerable variation in how surgeons approached surgical revascularization strategies, Dr. Ferguson said. “Whether this variability might impact the guideline discussion and these papers coming out remains to be determined.”
He noted that the study protocol allowed for the ISCHEMIA investigators to evaluate whether the variability in the surgical subset influenced the results by comparing the data to that in the Society of Thoracic Surgeons registry, but this option was never acted upon despite being brought to their attention.
“Something political between 2020 and 2022 has crept into the ISCHEMIA trial mindset gestalt, and I don’t like it,” Dr. Ferguson said. “And this can have enormous consequences.”
Asked whether their letters to Circulation are being used to undermine confidence in the ISCHEMIA findings, Dr. Sabik replied, “It is not about undermining ISCHEMIA, but understanding how applicable ISCHEMIA is to patients having CABG today. Understanding the severity of the CAD in patients enrolled in ISCHEMIA is, therefore, necessary.”
“The authors and Circulation have admitted to errors,” he said. “We want to be sure we understand how severe the errors are.”
“This is just about accuracy in a manuscript that may affect patient treatment and therefore patient lives. We want to make sure it is correct,” Dr. Sabik added.
A version of this article first appeared on Medscape.com.
A long-standing request to clarify data irregularities in a 2021 ISCHEMIA substudy resulted in the publication of one correction, with a second correction in the works.
Further, the lone cardiac surgeon on the ISCHEMIA trial steering committee, T. Bruce Ferguson, MD, has resigned from the committee, citing a series of factors, including an inability to reconcile data in the substudy and two additional ISCHEMIA papers currently under review.
As previously reported, cardiac surgeons Faisal Bakaeen, MD, and Joseph Sabik III, MD, notified the journal Circulation in March that the Dr. Reynolds et al. substudy had inconsistencies between data in the main paper and supplemental tables detailing patients’ coronary artery disease (CAD) and ischemia severity.
The substudy found that CAD severity, classified using the modified Duke Prognostic Index score, predicted 4-year mortality and myocardial infarction in the landmark trial.
Circulation published a correction for the substudy on May 20, explaining that a “formatting error” resulted in data being incorrectly presented in two supplemental tables. It does not mention the surgeons’ letter to the editor, which can be found by clicking the “Q” icon below the paper.
Dr. Bakaeen, from the Cleveland Clinic, and Dr. Sabik, from University Hospitals Cleveland Medical Center, told this news organization that they submitted a second letter to editor on May 23 stating that “significant discrepancies” persist.
For example, 7.2% of participants (179/2,475) had moderate stenosis in one coronary vessel in the corrected Reynolds paper (Supplemental Tables I and II) versus 23.3% (697/2,986) in the primary ISCHEMIA manuscript published in the New England Journal of Medicine (Table S5).
The number of patients with left main ≥ 50% stenosis is, surprisingly, identical in both manuscripts, at 40, they said, despite the denominator dropping from 3,845 participants in the primary study to 2,475 participants with an evaluable modified Duke Prognostic Index score in the substudy.
The number of participants with previous coronary artery bypass surgery (CABG) is also hard to reconcile between manuscripts and, importantly, the substudy doesn’t distinguish between lesions bypassed with patent grafts and unbypassed grafts or those with occluded grafts.
“The fact that the authors are working on a second correction is appreciated, but with such numerous inconsistencies, at some point you reach the conclusion that an independent review of the data is the right thing to do for such a high-profile study that received over $100 million of National Institutes of Health support,” Dr. Bakaeen said. “No one should be satisfied or happy if there is any shadow of doubt here regarding the accuracy of the data.”
Speaking to this news organization prior to the first correction, lead substudy author Harmony Reynolds, MD, NYU Langone Health, detailed in depth how the formatting glitch inadvertently upgraded the number of diseased vessels and lesion severity in two supplemental tables.
She noted, as does the correction, that the data were correctly reported in the main manuscript tables and figures and in the remainder of the supplement.
Dr. Reynolds also said they’re in the process of preparing the data for “public sharing soon,” including the Duke Prognostic score at all levels. Dr. Reynolds had not responded by the time of this publication to a request for further details or a timeline.
The surgeons’ first letter to the editor was rejected because it was submitted outside the journal’s 6-week window for letters and was posted as a public comment April 18 via the research platform, Remarq.
Dr. Bakaeen said they were told their second letter was rejected because of Circulation’s “long standing policy” not to publish letters to the editor regarding manuscript corrections but that a correction is being issued.
Circulation editor-in-chief Joseph A. Hill, MD, PhD, UT Southwestern Medical Center, Dallas, said via email that the journal will update its online policies to more clearly state its requirements for publication and that it has been fully transparent with Dr. Bakaeen and Dr. Sabik regarding where it is in the current process.
He confirmed the surgeons were told June 1 that “after additional review, the authors have determined that whereas there are no errors, an additional minor correction is warranted to clarify the description of the study population and sample size. This correction will be published soon.”
Dr. Hill thanked Dr. Bakaeen and Dr. Sabik for bringing the matter to their attention and said, “It is also important to note that both updates to the Dr. Reynolds et al. paper are published as corrections. However, the results and conclusions of the paper remain unchanged.”
The bigger issue
Importantly, the recent AHA/ACC/SCAI coronary revascularization guidelines used ISCHEMIA data to support downgrading the CABG recommendation from class 1 to class 2B in 3-vessel CAD with normal left ventricular function and from class 1 to 2a in 3-vessel CAD with mild to moderate left ventricular dysfunction.
The trial reported no significant benefit with an initial invasive strategy over medical therapy in stable patients with moderate or severe CAD. European guidelines, however, give CABG a class I recommendation for severe three- or two-vessel disease with proximal left anterior descending (LAD) involvement.
Dr. Sabik and Dr. Bakaeen say patients with severe three- or two-vessel disease with proximal LAD involvement were underrepresented in the randomized trials cited by the guidelines but are the typical CABG patients in modern-day practice.
“That is why it is important to determine the severity of CAD accurately and definitively in ISCHEMIA,” Dr. Bakaeen said. “But the more we look at the data, the more errors we encounter.”
Two U.S. surgical groups that were part of the writing process withdrew support for the revascularization guidelines, as did several international surgical societies, citing the data used to support the changes as well as the makeup of the writing committee.
Dr. Ferguson, now with the medical device manufacturer Perfusio, said he resigned from the ISCHEMIA steering committee on May 8 after being unable to accurately reconcile the ISCHEMIA surgical subset data with the Reynolds substudy and two other ISCHEMIA papers on the CABG subset. At least one of those papers, he noted, was being hurriedly pushed through the review process to counter concerns raised by surgeons regarding interpretation of ISCHEMIA.
“This is the first time in my lengthy career in medicine where a level of political agendaism was actually driving the truck,” he said. “It was appalling to me, and I would have said that if I was an interventional cardiologist looking at the results.”
ISCHEMIA results have also been touted as representing state-of-the-art care around the world, but that didn’t appear to be the case for the surgical subset where, for example, China and India performed most CABGs off pump, and globally there was considerable variation in how surgeons approached surgical revascularization strategies, Dr. Ferguson said. “Whether this variability might impact the guideline discussion and these papers coming out remains to be determined.”
He noted that the study protocol allowed for the ISCHEMIA investigators to evaluate whether the variability in the surgical subset influenced the results by comparing the data to that in the Society of Thoracic Surgeons registry, but this option was never acted upon despite being brought to their attention.
“Something political between 2020 and 2022 has crept into the ISCHEMIA trial mindset gestalt, and I don’t like it,” Dr. Ferguson said. “And this can have enormous consequences.”
Asked whether their letters to Circulation are being used to undermine confidence in the ISCHEMIA findings, Dr. Sabik replied, “It is not about undermining ISCHEMIA, but understanding how applicable ISCHEMIA is to patients having CABG today. Understanding the severity of the CAD in patients enrolled in ISCHEMIA is, therefore, necessary.”
“The authors and Circulation have admitted to errors,” he said. “We want to be sure we understand how severe the errors are.”
“This is just about accuracy in a manuscript that may affect patient treatment and therefore patient lives. We want to make sure it is correct,” Dr. Sabik added.
A version of this article first appeared on Medscape.com.
A long-standing request to clarify data irregularities in a 2021 ISCHEMIA substudy resulted in the publication of one correction, with a second correction in the works.
Further, the lone cardiac surgeon on the ISCHEMIA trial steering committee, T. Bruce Ferguson, MD, has resigned from the committee, citing a series of factors, including an inability to reconcile data in the substudy and two additional ISCHEMIA papers currently under review.
As previously reported, cardiac surgeons Faisal Bakaeen, MD, and Joseph Sabik III, MD, notified the journal Circulation in March that the Dr. Reynolds et al. substudy had inconsistencies between data in the main paper and supplemental tables detailing patients’ coronary artery disease (CAD) and ischemia severity.
The substudy found that CAD severity, classified using the modified Duke Prognostic Index score, predicted 4-year mortality and myocardial infarction in the landmark trial.
Circulation published a correction for the substudy on May 20, explaining that a “formatting error” resulted in data being incorrectly presented in two supplemental tables. It does not mention the surgeons’ letter to the editor, which can be found by clicking the “Q” icon below the paper.
Dr. Bakaeen, from the Cleveland Clinic, and Dr. Sabik, from University Hospitals Cleveland Medical Center, told this news organization that they submitted a second letter to editor on May 23 stating that “significant discrepancies” persist.
For example, 7.2% of participants (179/2,475) had moderate stenosis in one coronary vessel in the corrected Reynolds paper (Supplemental Tables I and II) versus 23.3% (697/2,986) in the primary ISCHEMIA manuscript published in the New England Journal of Medicine (Table S5).
The number of patients with left main ≥ 50% stenosis is, surprisingly, identical in both manuscripts, at 40, they said, despite the denominator dropping from 3,845 participants in the primary study to 2,475 participants with an evaluable modified Duke Prognostic Index score in the substudy.
The number of participants with previous coronary artery bypass surgery (CABG) is also hard to reconcile between manuscripts and, importantly, the substudy doesn’t distinguish between lesions bypassed with patent grafts and unbypassed grafts or those with occluded grafts.
“The fact that the authors are working on a second correction is appreciated, but with such numerous inconsistencies, at some point you reach the conclusion that an independent review of the data is the right thing to do for such a high-profile study that received over $100 million of National Institutes of Health support,” Dr. Bakaeen said. “No one should be satisfied or happy if there is any shadow of doubt here regarding the accuracy of the data.”
Speaking to this news organization prior to the first correction, lead substudy author Harmony Reynolds, MD, NYU Langone Health, detailed in depth how the formatting glitch inadvertently upgraded the number of diseased vessels and lesion severity in two supplemental tables.
She noted, as does the correction, that the data were correctly reported in the main manuscript tables and figures and in the remainder of the supplement.
Dr. Reynolds also said they’re in the process of preparing the data for “public sharing soon,” including the Duke Prognostic score at all levels. Dr. Reynolds had not responded by the time of this publication to a request for further details or a timeline.
The surgeons’ first letter to the editor was rejected because it was submitted outside the journal’s 6-week window for letters and was posted as a public comment April 18 via the research platform, Remarq.
Dr. Bakaeen said they were told their second letter was rejected because of Circulation’s “long standing policy” not to publish letters to the editor regarding manuscript corrections but that a correction is being issued.
Circulation editor-in-chief Joseph A. Hill, MD, PhD, UT Southwestern Medical Center, Dallas, said via email that the journal will update its online policies to more clearly state its requirements for publication and that it has been fully transparent with Dr. Bakaeen and Dr. Sabik regarding where it is in the current process.
He confirmed the surgeons were told June 1 that “after additional review, the authors have determined that whereas there are no errors, an additional minor correction is warranted to clarify the description of the study population and sample size. This correction will be published soon.”
Dr. Hill thanked Dr. Bakaeen and Dr. Sabik for bringing the matter to their attention and said, “It is also important to note that both updates to the Dr. Reynolds et al. paper are published as corrections. However, the results and conclusions of the paper remain unchanged.”
The bigger issue
Importantly, the recent AHA/ACC/SCAI coronary revascularization guidelines used ISCHEMIA data to support downgrading the CABG recommendation from class 1 to class 2B in 3-vessel CAD with normal left ventricular function and from class 1 to 2a in 3-vessel CAD with mild to moderate left ventricular dysfunction.
The trial reported no significant benefit with an initial invasive strategy over medical therapy in stable patients with moderate or severe CAD. European guidelines, however, give CABG a class I recommendation for severe three- or two-vessel disease with proximal left anterior descending (LAD) involvement.
Dr. Sabik and Dr. Bakaeen say patients with severe three- or two-vessel disease with proximal LAD involvement were underrepresented in the randomized trials cited by the guidelines but are the typical CABG patients in modern-day practice.
“That is why it is important to determine the severity of CAD accurately and definitively in ISCHEMIA,” Dr. Bakaeen said. “But the more we look at the data, the more errors we encounter.”
Two U.S. surgical groups that were part of the writing process withdrew support for the revascularization guidelines, as did several international surgical societies, citing the data used to support the changes as well as the makeup of the writing committee.
Dr. Ferguson, now with the medical device manufacturer Perfusio, said he resigned from the ISCHEMIA steering committee on May 8 after being unable to accurately reconcile the ISCHEMIA surgical subset data with the Reynolds substudy and two other ISCHEMIA papers on the CABG subset. At least one of those papers, he noted, was being hurriedly pushed through the review process to counter concerns raised by surgeons regarding interpretation of ISCHEMIA.
“This is the first time in my lengthy career in medicine where a level of political agendaism was actually driving the truck,” he said. “It was appalling to me, and I would have said that if I was an interventional cardiologist looking at the results.”
ISCHEMIA results have also been touted as representing state-of-the-art care around the world, but that didn’t appear to be the case for the surgical subset where, for example, China and India performed most CABGs off pump, and globally there was considerable variation in how surgeons approached surgical revascularization strategies, Dr. Ferguson said. “Whether this variability might impact the guideline discussion and these papers coming out remains to be determined.”
He noted that the study protocol allowed for the ISCHEMIA investigators to evaluate whether the variability in the surgical subset influenced the results by comparing the data to that in the Society of Thoracic Surgeons registry, but this option was never acted upon despite being brought to their attention.
“Something political between 2020 and 2022 has crept into the ISCHEMIA trial mindset gestalt, and I don’t like it,” Dr. Ferguson said. “And this can have enormous consequences.”
Asked whether their letters to Circulation are being used to undermine confidence in the ISCHEMIA findings, Dr. Sabik replied, “It is not about undermining ISCHEMIA, but understanding how applicable ISCHEMIA is to patients having CABG today. Understanding the severity of the CAD in patients enrolled in ISCHEMIA is, therefore, necessary.”
“The authors and Circulation have admitted to errors,” he said. “We want to be sure we understand how severe the errors are.”
“This is just about accuracy in a manuscript that may affect patient treatment and therefore patient lives. We want to make sure it is correct,” Dr. Sabik added.
A version of this article first appeared on Medscape.com.
‘Genetic’ height linked to peripheral neuropathy and certain skin and bone infections
study published in PLOS Genetics.
, according to aPrior studies have investigated height as a risk factor for chronic diseases, such as a higher risk for atrial fibrillation and a reduced risk of cardiovascular disease. It’s been consistently difficult, however, to eliminate the confounding influences of diet, socioeconomics, lifestyle behaviors, and other environmental factors that may interfere with a person’s reaching their expected height based on their genes.
This study, however, was able to better parse those differences by using Mendelian randomization within the comprehensive clinical and genetic dataset of a national health care system biobank. Mendelian randomization uses “genetic instruments for exposures of interest under the assumption that genotype is less susceptible to confounding than measured exposures,” the authors explained. The findings confirmed previously suspected associations between height and a range of cardiovascular and metabolic conditions as well as revealing new associations with several other conditions.
Prior associations confirmed, new associations uncovered
The results confirmed that being tall is linked to a higher risk of atrial fibrillation and varicose veins, and a lower risk of coronary heart disease, high blood pressure, and high cholesterol. The study also uncovered new associations between greater height and a higher risk of peripheral neuropathy, which is caused by damage to nerves on the extremities, as well as skin and bone infections, such as leg and foot ulcers.
The meta-analysis “identified five additional traits associated with genetically-predicted height,” wrote Sridharan Raghavan, MD, assistant professor of medicine at the University of Colorado Anschutz Medical Campus, and colleagues. “Two were genitourinary conditions – erectile dysfunction and urinary retention – that can be associated with neuropathy, and a third was a phecode for nonspecific skin disorders that may be related to skin infections – consistent with the race/ethnicity stratified results.”
Removing potential confounders
F. Perry Wilson, MD, associate professor of medicine at Yale University, New Haven, Conn., who was not involved in the study, said the findings were not particularly surprising overall, but it’s striking that the researchers had ”such a large cohort with such detailed electronic health records allowing for the comparison of genetic height with a variety of clinical outcomes.” He also noted the study’s strength in using Mendelian randomization so that the exposure is the predicted genetic height instead of a person’s measured height.
“This is key, since lots of things affect actual height – nutrition is an important one that could certainly be linked to disease as well,” Dr. Wilson said. ”By using genetic height, the authors remove these potential confounders. Since genetic height is “assigned” at birth (or conception), there is little opportunity for confounding. Of course, it is possible that some of the gene variants used to predict genetic height actually do something else, such as make you seek out less nutritious meals, but by and large this is how these types of studies need to be done.”
Height may impact over 100 clinical traits
The study relied on data from the U.S. Veteran Affairs Million Veteran Program with 222,300 non-Hispanic White and 58,151 non-Hispanic Black participants. The researchers first estimated the likelihood of participants’ genetic height based on 3,290 genetic variants determined to affect genetic height in a recent European-ancestry genome-wide meta-analysis. Then they compared these estimates with participants’ actual height in the VA medical record, adjusting for age, sex, and other genetic characteristics.
In doing so, the researchers found 345 clinical traits that were associated with the actual measured height in White participants plus another 17 clinical trials linked to actual measured height in Black participants. An overall 127 of these clinical traits were significantly associated with White participants’ genetically predicted height, and two of them were significantly associated with Black participants’ genetically predicted height.
In analyzing all these data together, the researchers were largely able to separate out those associations between genetically predicted height and certain health conditions from those associations between health conditions and a person’s actual measured height. They also determined that including body mass index as a covariate had little impact on the results. The researchers conducted the appropriate statistical correction to ensure the use of so many variables did not result in spurious statistical significance in some associations.
“Using genetic methods applied to the VA Million Veteran Program, we found evidence that adult height may impact over 100 clinical traits, including several conditions associated with poor outcomes and quality of life – peripheral neuropathy, lower extremity ulcers, and chronic venous insufficiency. We conclude that height may be an unrecognized nonmodifiable risk factor for several common conditions in adults.”
Height linked with health conditions
Genetically predicted height predicted a reduced risk of hyperlipidemia and hypertension independent of coronary heart disease, the analysis revealed. Genetically predicted height was also linked to an approximately 51% increased risk of atrial fibrillation in participants without coronary heart disease but, paradoxically, only a 39% increased risk in those with coronary heart disease, despite coronary heart disease being a risk factor for atrial fibrillation. Genetically predicted height was also associated with a greater risk of varicose veins in the legs and deep vein thrombosis.
Another novel association uncovered by the analysis was between women’s genetically predicted height and both asthma and nonspecific peripheral nerve disorders. “Whether these associations reflect differences by sex in disease pathophysiology related to height may warrant exploration in a sample with better balance between men and women,” the authors wrote. “In sum, our results suggest that an individual’s height may warrant consideration as a nonmodifiable predictor for several common conditions, particularly those affecting peripheral/distal extremities that are most physically impacted by tall stature.”
A substantial limitation of the study was its homogeneity of participants, who were 92% male with an average height of 176 cm and an average BMI of 30.1. The Black participants tended to be younger, with an average age of 58 compared with 64 years in the White participants, but the groups were otherwise similar in height and weight.* The database included data from Hispanic participants, but the researchers excluded these data because of the small sample size.
The smaller dataset for Black participants was a limitation as well as the fact that the genome-wide association study the researchers relied on came from a European population, which may not be as accurate in people with other ancestry, Dr. Wilson said. The bigger limitation, however, is what the findings’ clinical relevance is.
What does it all mean?
“Genetic height is in your genes – there is nothing to be done about it – so it is more of academic interest than clinical interest,” Dr. Wilson said. It’s not even clear whether incorporating a person’s height – actual or genetically predicted, if it could be easily determined for each person – into risk calculators. ”To know whether it would be beneficial to use height (or genetic height) as a risk factor, you’d need to examine each condition of interest, adjusting for all known risk factors, to see if height improved the prediction,” Dr. Wilson said. “I suspect for most conditions, the well-known risk factors would swamp height. For example, high genetic height might truly increase risk for neuropathy. But diabetes might increase the risk so much more that height is not particularly relevant.”
On the other hand, the fact that height in general has any potential influence at all on disease risk may inspire physicians to consider other risk factors in especially tall individuals.
”Physicians may find it interesting that we have some confirmation that height does increase the risk of certain conditions,” Dr. Wilson said. “While this is unlikely to dramatically change practice, they may be a bit more diligent in looking for other relevant risk factors for the diseases found in this study in their very tall patients.”
The research was funded by the U.S. Department of Veteran Affairs, the Boettcher Foundation’s Webb-Waring Biomedical Research Program, the National Institutes of Health, and a Linda Pechenik Montague Investigator award. One study coauthor is a full-time employee of Novartis Institutes of Biomedical Research. The other authors and Dr. Wilson had no disclosures.
*Correction, 6/29/22: An earlier version of this article misstated the average age of Black participants.
study published in PLOS Genetics.
, according to aPrior studies have investigated height as a risk factor for chronic diseases, such as a higher risk for atrial fibrillation and a reduced risk of cardiovascular disease. It’s been consistently difficult, however, to eliminate the confounding influences of diet, socioeconomics, lifestyle behaviors, and other environmental factors that may interfere with a person’s reaching their expected height based on their genes.
This study, however, was able to better parse those differences by using Mendelian randomization within the comprehensive clinical and genetic dataset of a national health care system biobank. Mendelian randomization uses “genetic instruments for exposures of interest under the assumption that genotype is less susceptible to confounding than measured exposures,” the authors explained. The findings confirmed previously suspected associations between height and a range of cardiovascular and metabolic conditions as well as revealing new associations with several other conditions.
Prior associations confirmed, new associations uncovered
The results confirmed that being tall is linked to a higher risk of atrial fibrillation and varicose veins, and a lower risk of coronary heart disease, high blood pressure, and high cholesterol. The study also uncovered new associations between greater height and a higher risk of peripheral neuropathy, which is caused by damage to nerves on the extremities, as well as skin and bone infections, such as leg and foot ulcers.
The meta-analysis “identified five additional traits associated with genetically-predicted height,” wrote Sridharan Raghavan, MD, assistant professor of medicine at the University of Colorado Anschutz Medical Campus, and colleagues. “Two were genitourinary conditions – erectile dysfunction and urinary retention – that can be associated with neuropathy, and a third was a phecode for nonspecific skin disorders that may be related to skin infections – consistent with the race/ethnicity stratified results.”
Removing potential confounders
F. Perry Wilson, MD, associate professor of medicine at Yale University, New Haven, Conn., who was not involved in the study, said the findings were not particularly surprising overall, but it’s striking that the researchers had ”such a large cohort with such detailed electronic health records allowing for the comparison of genetic height with a variety of clinical outcomes.” He also noted the study’s strength in using Mendelian randomization so that the exposure is the predicted genetic height instead of a person’s measured height.
“This is key, since lots of things affect actual height – nutrition is an important one that could certainly be linked to disease as well,” Dr. Wilson said. ”By using genetic height, the authors remove these potential confounders. Since genetic height is “assigned” at birth (or conception), there is little opportunity for confounding. Of course, it is possible that some of the gene variants used to predict genetic height actually do something else, such as make you seek out less nutritious meals, but by and large this is how these types of studies need to be done.”
Height may impact over 100 clinical traits
The study relied on data from the U.S. Veteran Affairs Million Veteran Program with 222,300 non-Hispanic White and 58,151 non-Hispanic Black participants. The researchers first estimated the likelihood of participants’ genetic height based on 3,290 genetic variants determined to affect genetic height in a recent European-ancestry genome-wide meta-analysis. Then they compared these estimates with participants’ actual height in the VA medical record, adjusting for age, sex, and other genetic characteristics.
In doing so, the researchers found 345 clinical traits that were associated with the actual measured height in White participants plus another 17 clinical trials linked to actual measured height in Black participants. An overall 127 of these clinical traits were significantly associated with White participants’ genetically predicted height, and two of them were significantly associated with Black participants’ genetically predicted height.
In analyzing all these data together, the researchers were largely able to separate out those associations between genetically predicted height and certain health conditions from those associations between health conditions and a person’s actual measured height. They also determined that including body mass index as a covariate had little impact on the results. The researchers conducted the appropriate statistical correction to ensure the use of so many variables did not result in spurious statistical significance in some associations.
“Using genetic methods applied to the VA Million Veteran Program, we found evidence that adult height may impact over 100 clinical traits, including several conditions associated with poor outcomes and quality of life – peripheral neuropathy, lower extremity ulcers, and chronic venous insufficiency. We conclude that height may be an unrecognized nonmodifiable risk factor for several common conditions in adults.”
Height linked with health conditions
Genetically predicted height predicted a reduced risk of hyperlipidemia and hypertension independent of coronary heart disease, the analysis revealed. Genetically predicted height was also linked to an approximately 51% increased risk of atrial fibrillation in participants without coronary heart disease but, paradoxically, only a 39% increased risk in those with coronary heart disease, despite coronary heart disease being a risk factor for atrial fibrillation. Genetically predicted height was also associated with a greater risk of varicose veins in the legs and deep vein thrombosis.
Another novel association uncovered by the analysis was between women’s genetically predicted height and both asthma and nonspecific peripheral nerve disorders. “Whether these associations reflect differences by sex in disease pathophysiology related to height may warrant exploration in a sample with better balance between men and women,” the authors wrote. “In sum, our results suggest that an individual’s height may warrant consideration as a nonmodifiable predictor for several common conditions, particularly those affecting peripheral/distal extremities that are most physically impacted by tall stature.”
A substantial limitation of the study was its homogeneity of participants, who were 92% male with an average height of 176 cm and an average BMI of 30.1. The Black participants tended to be younger, with an average age of 58 compared with 64 years in the White participants, but the groups were otherwise similar in height and weight.* The database included data from Hispanic participants, but the researchers excluded these data because of the small sample size.
The smaller dataset for Black participants was a limitation as well as the fact that the genome-wide association study the researchers relied on came from a European population, which may not be as accurate in people with other ancestry, Dr. Wilson said. The bigger limitation, however, is what the findings’ clinical relevance is.
What does it all mean?
“Genetic height is in your genes – there is nothing to be done about it – so it is more of academic interest than clinical interest,” Dr. Wilson said. It’s not even clear whether incorporating a person’s height – actual or genetically predicted, if it could be easily determined for each person – into risk calculators. ”To know whether it would be beneficial to use height (or genetic height) as a risk factor, you’d need to examine each condition of interest, adjusting for all known risk factors, to see if height improved the prediction,” Dr. Wilson said. “I suspect for most conditions, the well-known risk factors would swamp height. For example, high genetic height might truly increase risk for neuropathy. But diabetes might increase the risk so much more that height is not particularly relevant.”
On the other hand, the fact that height in general has any potential influence at all on disease risk may inspire physicians to consider other risk factors in especially tall individuals.
”Physicians may find it interesting that we have some confirmation that height does increase the risk of certain conditions,” Dr. Wilson said. “While this is unlikely to dramatically change practice, they may be a bit more diligent in looking for other relevant risk factors for the diseases found in this study in their very tall patients.”
The research was funded by the U.S. Department of Veteran Affairs, the Boettcher Foundation’s Webb-Waring Biomedical Research Program, the National Institutes of Health, and a Linda Pechenik Montague Investigator award. One study coauthor is a full-time employee of Novartis Institutes of Biomedical Research. The other authors and Dr. Wilson had no disclosures.
*Correction, 6/29/22: An earlier version of this article misstated the average age of Black participants.
study published in PLOS Genetics.
, according to aPrior studies have investigated height as a risk factor for chronic diseases, such as a higher risk for atrial fibrillation and a reduced risk of cardiovascular disease. It’s been consistently difficult, however, to eliminate the confounding influences of diet, socioeconomics, lifestyle behaviors, and other environmental factors that may interfere with a person’s reaching their expected height based on their genes.
This study, however, was able to better parse those differences by using Mendelian randomization within the comprehensive clinical and genetic dataset of a national health care system biobank. Mendelian randomization uses “genetic instruments for exposures of interest under the assumption that genotype is less susceptible to confounding than measured exposures,” the authors explained. The findings confirmed previously suspected associations between height and a range of cardiovascular and metabolic conditions as well as revealing new associations with several other conditions.
Prior associations confirmed, new associations uncovered
The results confirmed that being tall is linked to a higher risk of atrial fibrillation and varicose veins, and a lower risk of coronary heart disease, high blood pressure, and high cholesterol. The study also uncovered new associations between greater height and a higher risk of peripheral neuropathy, which is caused by damage to nerves on the extremities, as well as skin and bone infections, such as leg and foot ulcers.
The meta-analysis “identified five additional traits associated with genetically-predicted height,” wrote Sridharan Raghavan, MD, assistant professor of medicine at the University of Colorado Anschutz Medical Campus, and colleagues. “Two were genitourinary conditions – erectile dysfunction and urinary retention – that can be associated with neuropathy, and a third was a phecode for nonspecific skin disorders that may be related to skin infections – consistent with the race/ethnicity stratified results.”
Removing potential confounders
F. Perry Wilson, MD, associate professor of medicine at Yale University, New Haven, Conn., who was not involved in the study, said the findings were not particularly surprising overall, but it’s striking that the researchers had ”such a large cohort with such detailed electronic health records allowing for the comparison of genetic height with a variety of clinical outcomes.” He also noted the study’s strength in using Mendelian randomization so that the exposure is the predicted genetic height instead of a person’s measured height.
“This is key, since lots of things affect actual height – nutrition is an important one that could certainly be linked to disease as well,” Dr. Wilson said. ”By using genetic height, the authors remove these potential confounders. Since genetic height is “assigned” at birth (or conception), there is little opportunity for confounding. Of course, it is possible that some of the gene variants used to predict genetic height actually do something else, such as make you seek out less nutritious meals, but by and large this is how these types of studies need to be done.”
Height may impact over 100 clinical traits
The study relied on data from the U.S. Veteran Affairs Million Veteran Program with 222,300 non-Hispanic White and 58,151 non-Hispanic Black participants. The researchers first estimated the likelihood of participants’ genetic height based on 3,290 genetic variants determined to affect genetic height in a recent European-ancestry genome-wide meta-analysis. Then they compared these estimates with participants’ actual height in the VA medical record, adjusting for age, sex, and other genetic characteristics.
In doing so, the researchers found 345 clinical traits that were associated with the actual measured height in White participants plus another 17 clinical trials linked to actual measured height in Black participants. An overall 127 of these clinical traits were significantly associated with White participants’ genetically predicted height, and two of them were significantly associated with Black participants’ genetically predicted height.
In analyzing all these data together, the researchers were largely able to separate out those associations between genetically predicted height and certain health conditions from those associations between health conditions and a person’s actual measured height. They also determined that including body mass index as a covariate had little impact on the results. The researchers conducted the appropriate statistical correction to ensure the use of so many variables did not result in spurious statistical significance in some associations.
“Using genetic methods applied to the VA Million Veteran Program, we found evidence that adult height may impact over 100 clinical traits, including several conditions associated with poor outcomes and quality of life – peripheral neuropathy, lower extremity ulcers, and chronic venous insufficiency. We conclude that height may be an unrecognized nonmodifiable risk factor for several common conditions in adults.”
Height linked with health conditions
Genetically predicted height predicted a reduced risk of hyperlipidemia and hypertension independent of coronary heart disease, the analysis revealed. Genetically predicted height was also linked to an approximately 51% increased risk of atrial fibrillation in participants without coronary heart disease but, paradoxically, only a 39% increased risk in those with coronary heart disease, despite coronary heart disease being a risk factor for atrial fibrillation. Genetically predicted height was also associated with a greater risk of varicose veins in the legs and deep vein thrombosis.
Another novel association uncovered by the analysis was between women’s genetically predicted height and both asthma and nonspecific peripheral nerve disorders. “Whether these associations reflect differences by sex in disease pathophysiology related to height may warrant exploration in a sample with better balance between men and women,” the authors wrote. “In sum, our results suggest that an individual’s height may warrant consideration as a nonmodifiable predictor for several common conditions, particularly those affecting peripheral/distal extremities that are most physically impacted by tall stature.”
A substantial limitation of the study was its homogeneity of participants, who were 92% male with an average height of 176 cm and an average BMI of 30.1. The Black participants tended to be younger, with an average age of 58 compared with 64 years in the White participants, but the groups were otherwise similar in height and weight.* The database included data from Hispanic participants, but the researchers excluded these data because of the small sample size.
The smaller dataset for Black participants was a limitation as well as the fact that the genome-wide association study the researchers relied on came from a European population, which may not be as accurate in people with other ancestry, Dr. Wilson said. The bigger limitation, however, is what the findings’ clinical relevance is.
What does it all mean?
“Genetic height is in your genes – there is nothing to be done about it – so it is more of academic interest than clinical interest,” Dr. Wilson said. It’s not even clear whether incorporating a person’s height – actual or genetically predicted, if it could be easily determined for each person – into risk calculators. ”To know whether it would be beneficial to use height (or genetic height) as a risk factor, you’d need to examine each condition of interest, adjusting for all known risk factors, to see if height improved the prediction,” Dr. Wilson said. “I suspect for most conditions, the well-known risk factors would swamp height. For example, high genetic height might truly increase risk for neuropathy. But diabetes might increase the risk so much more that height is not particularly relevant.”
On the other hand, the fact that height in general has any potential influence at all on disease risk may inspire physicians to consider other risk factors in especially tall individuals.
”Physicians may find it interesting that we have some confirmation that height does increase the risk of certain conditions,” Dr. Wilson said. “While this is unlikely to dramatically change practice, they may be a bit more diligent in looking for other relevant risk factors for the diseases found in this study in their very tall patients.”
The research was funded by the U.S. Department of Veteran Affairs, the Boettcher Foundation’s Webb-Waring Biomedical Research Program, the National Institutes of Health, and a Linda Pechenik Montague Investigator award. One study coauthor is a full-time employee of Novartis Institutes of Biomedical Research. The other authors and Dr. Wilson had no disclosures.
*Correction, 6/29/22: An earlier version of this article misstated the average age of Black participants.
FROM PLOS GENETICS
CTO PCI success rates rising, with blip during COVID-19, registry shows
Technical and procedural success rates for chronic total occlusion percutaneous coronary intervention (CTO PCI) have increased steadily over the past 6 years, with rates of in-hospital major adverse cardiac events (MACE) declining to the 2%-or-lower range in that time.
“CTO PCI technical and procedural success rates are high and continue to increase over time,” Spyridon Kostantinis, MD said in presenting updated results from the international PROGRESS-CTO registry at the Society for Cardiovascular Angiography & Interventions annual scientific sessions.
“The overall success rate increased from 81.6% in 2018 to 88.1% in 2021,” he added. The overall incidence of in-hospital MACE in that time was “an acceptable” 2.1% without significant changes over that period.
The analysis examined clinical, angiographic and procedural outcomes of 10,249 CTO PCIs performed on 10,019 patients from 63 centers in nine countries during 2016-2021. PROGRESS-CTO stands for Prospective Global Registry for the Study of Chronic Total Occlusion Intervention.
The target CTOs were highly complex, he said, with an average J-CTO (multicenter CTO registry in Japan) score of 2.4 ± 1.3 and PROGRESS-CTO score of 1.3 ± 1. The most common CTO target vessel was the right coronary artery (53%), followed by the left anterior descending artery (26%) and the circumflex artery (19%).
The registry also tracked how characteristics of the CTO PCI procedures themselves changed over time. “The septal and the epicardial collaterals were the most common collaterals used for retrograde crossing, with a decreasing trend for epicardial collaterals over time,” said Dr. Kostantinis, a research fellow at the Minneapolis Heart Institute.
Septal collateral use varied between 64% and 69% of cases from 2016 to 2021, but the share of epicardial collaterals declined from 35% to 22% in that time.
“Over time, the range of antegrade wiring as the final successfully crossing strategy increased from 46% in 2016 to 61% in 2021, with a decrease in antegrade dissection and re-entry (ADR) and no change in the retrograde approach,” Dr. Kostantinis said. The percentage of procedures using ADR as the final crossing strategy declined from 18% in 2016 to 12% in 2021, with the rate of retrograde crossings peaking at 21% in 2016 but leveling off to 18% or 19% in the subsequent years.
“An increasing use in the efficiency of antegrade wiring may reflect an improvement in guidewire retrograde crossing as well as the increasing operator expertise,” Dr. Kostantinis said.
The study also found that contrast volume, air kerma radiation dose, fluoroscopy time, and procedure time declined steadily over time. “The potential explanations for these are using new x-ray systems as well as the use of intravascular imaging,” Dr. Kostantinis said.
In 2020, the rates of technical and procedural success, as well as the number of overall procedures, declined from 2019, while MACE rates ticked upward that year, probably because of the COVID-19 pandemic, Dr. Kostantinis said.
“It is true that we noticed a rise in MACE rate from 1.6% in 2019 to 2.7% in 2020, but in 2021 that decreased again to 1.7%,” he said in an interview. “Another potential explanation is the higher angiographic complexity of CTOs treated during that year (2020) that resulted in more adverse events.”
Previous results from the PROGRESS-CTO registry reported the difference in MACE between 2019 and 2020 was significant (P = .01). “So, yes, the difference between those 2 years is significant,” Dr. Kostantinis said. However, he noted, the overall trend was not significant, with a P value of .194.
The risk profile of CTO PCI has improved “slowly” over time, said Kirk N. Garratt, MD, but “it’s not yet were it needs to be.”
He added, “Undoubtedly we’ve learned that, without any question, one method for minimizing the risk is to concentrate these cases in the hands of those that do many of them.” As the number of procedures fell – an “embedded” pandemic impact –“I worry that it’s inevitable that complication rates will tick up a bit,” said Dr. Garratt, director of the Center for Heart and Vascular Health at Christiana Care in Newark, Del.
By the same token, he added, this situation with regard to CTOs “parallels what’s happening elsewhere in interventional medicine and medicine broadly; numbers are increasing and we’re busy again. In most domains we’re not as busy as we had been prepandemic, and time will allow us to catch up.”
PROGRESS-CTO has received funding from the Joseph F. and Mary M. Fleischhacker Foundation and the Abbott Northwestern Hospital Foundation Innovation Grant.
Dr. Kostantinis has no disclosures. Dr. Garratt is an advisory board member for Abbott.
Technical and procedural success rates for chronic total occlusion percutaneous coronary intervention (CTO PCI) have increased steadily over the past 6 years, with rates of in-hospital major adverse cardiac events (MACE) declining to the 2%-or-lower range in that time.
“CTO PCI technical and procedural success rates are high and continue to increase over time,” Spyridon Kostantinis, MD said in presenting updated results from the international PROGRESS-CTO registry at the Society for Cardiovascular Angiography & Interventions annual scientific sessions.
“The overall success rate increased from 81.6% in 2018 to 88.1% in 2021,” he added. The overall incidence of in-hospital MACE in that time was “an acceptable” 2.1% without significant changes over that period.
The analysis examined clinical, angiographic and procedural outcomes of 10,249 CTO PCIs performed on 10,019 patients from 63 centers in nine countries during 2016-2021. PROGRESS-CTO stands for Prospective Global Registry for the Study of Chronic Total Occlusion Intervention.
The target CTOs were highly complex, he said, with an average J-CTO (multicenter CTO registry in Japan) score of 2.4 ± 1.3 and PROGRESS-CTO score of 1.3 ± 1. The most common CTO target vessel was the right coronary artery (53%), followed by the left anterior descending artery (26%) and the circumflex artery (19%).
The registry also tracked how characteristics of the CTO PCI procedures themselves changed over time. “The septal and the epicardial collaterals were the most common collaterals used for retrograde crossing, with a decreasing trend for epicardial collaterals over time,” said Dr. Kostantinis, a research fellow at the Minneapolis Heart Institute.
Septal collateral use varied between 64% and 69% of cases from 2016 to 2021, but the share of epicardial collaterals declined from 35% to 22% in that time.
“Over time, the range of antegrade wiring as the final successfully crossing strategy increased from 46% in 2016 to 61% in 2021, with a decrease in antegrade dissection and re-entry (ADR) and no change in the retrograde approach,” Dr. Kostantinis said. The percentage of procedures using ADR as the final crossing strategy declined from 18% in 2016 to 12% in 2021, with the rate of retrograde crossings peaking at 21% in 2016 but leveling off to 18% or 19% in the subsequent years.
“An increasing use in the efficiency of antegrade wiring may reflect an improvement in guidewire retrograde crossing as well as the increasing operator expertise,” Dr. Kostantinis said.
The study also found that contrast volume, air kerma radiation dose, fluoroscopy time, and procedure time declined steadily over time. “The potential explanations for these are using new x-ray systems as well as the use of intravascular imaging,” Dr. Kostantinis said.
In 2020, the rates of technical and procedural success, as well as the number of overall procedures, declined from 2019, while MACE rates ticked upward that year, probably because of the COVID-19 pandemic, Dr. Kostantinis said.
“It is true that we noticed a rise in MACE rate from 1.6% in 2019 to 2.7% in 2020, but in 2021 that decreased again to 1.7%,” he said in an interview. “Another potential explanation is the higher angiographic complexity of CTOs treated during that year (2020) that resulted in more adverse events.”
Previous results from the PROGRESS-CTO registry reported the difference in MACE between 2019 and 2020 was significant (P = .01). “So, yes, the difference between those 2 years is significant,” Dr. Kostantinis said. However, he noted, the overall trend was not significant, with a P value of .194.
The risk profile of CTO PCI has improved “slowly” over time, said Kirk N. Garratt, MD, but “it’s not yet were it needs to be.”
He added, “Undoubtedly we’ve learned that, without any question, one method for minimizing the risk is to concentrate these cases in the hands of those that do many of them.” As the number of procedures fell – an “embedded” pandemic impact –“I worry that it’s inevitable that complication rates will tick up a bit,” said Dr. Garratt, director of the Center for Heart and Vascular Health at Christiana Care in Newark, Del.
By the same token, he added, this situation with regard to CTOs “parallels what’s happening elsewhere in interventional medicine and medicine broadly; numbers are increasing and we’re busy again. In most domains we’re not as busy as we had been prepandemic, and time will allow us to catch up.”
PROGRESS-CTO has received funding from the Joseph F. and Mary M. Fleischhacker Foundation and the Abbott Northwestern Hospital Foundation Innovation Grant.
Dr. Kostantinis has no disclosures. Dr. Garratt is an advisory board member for Abbott.
Technical and procedural success rates for chronic total occlusion percutaneous coronary intervention (CTO PCI) have increased steadily over the past 6 years, with rates of in-hospital major adverse cardiac events (MACE) declining to the 2%-or-lower range in that time.
“CTO PCI technical and procedural success rates are high and continue to increase over time,” Spyridon Kostantinis, MD said in presenting updated results from the international PROGRESS-CTO registry at the Society for Cardiovascular Angiography & Interventions annual scientific sessions.
“The overall success rate increased from 81.6% in 2018 to 88.1% in 2021,” he added. The overall incidence of in-hospital MACE in that time was “an acceptable” 2.1% without significant changes over that period.
The analysis examined clinical, angiographic and procedural outcomes of 10,249 CTO PCIs performed on 10,019 patients from 63 centers in nine countries during 2016-2021. PROGRESS-CTO stands for Prospective Global Registry for the Study of Chronic Total Occlusion Intervention.
The target CTOs were highly complex, he said, with an average J-CTO (multicenter CTO registry in Japan) score of 2.4 ± 1.3 and PROGRESS-CTO score of 1.3 ± 1. The most common CTO target vessel was the right coronary artery (53%), followed by the left anterior descending artery (26%) and the circumflex artery (19%).
The registry also tracked how characteristics of the CTO PCI procedures themselves changed over time. “The septal and the epicardial collaterals were the most common collaterals used for retrograde crossing, with a decreasing trend for epicardial collaterals over time,” said Dr. Kostantinis, a research fellow at the Minneapolis Heart Institute.
Septal collateral use varied between 64% and 69% of cases from 2016 to 2021, but the share of epicardial collaterals declined from 35% to 22% in that time.
“Over time, the range of antegrade wiring as the final successfully crossing strategy increased from 46% in 2016 to 61% in 2021, with a decrease in antegrade dissection and re-entry (ADR) and no change in the retrograde approach,” Dr. Kostantinis said. The percentage of procedures using ADR as the final crossing strategy declined from 18% in 2016 to 12% in 2021, with the rate of retrograde crossings peaking at 21% in 2016 but leveling off to 18% or 19% in the subsequent years.
“An increasing use in the efficiency of antegrade wiring may reflect an improvement in guidewire retrograde crossing as well as the increasing operator expertise,” Dr. Kostantinis said.
The study also found that contrast volume, air kerma radiation dose, fluoroscopy time, and procedure time declined steadily over time. “The potential explanations for these are using new x-ray systems as well as the use of intravascular imaging,” Dr. Kostantinis said.
In 2020, the rates of technical and procedural success, as well as the number of overall procedures, declined from 2019, while MACE rates ticked upward that year, probably because of the COVID-19 pandemic, Dr. Kostantinis said.
“It is true that we noticed a rise in MACE rate from 1.6% in 2019 to 2.7% in 2020, but in 2021 that decreased again to 1.7%,” he said in an interview. “Another potential explanation is the higher angiographic complexity of CTOs treated during that year (2020) that resulted in more adverse events.”
Previous results from the PROGRESS-CTO registry reported the difference in MACE between 2019 and 2020 was significant (P = .01). “So, yes, the difference between those 2 years is significant,” Dr. Kostantinis said. However, he noted, the overall trend was not significant, with a P value of .194.
The risk profile of CTO PCI has improved “slowly” over time, said Kirk N. Garratt, MD, but “it’s not yet were it needs to be.”
He added, “Undoubtedly we’ve learned that, without any question, one method for minimizing the risk is to concentrate these cases in the hands of those that do many of them.” As the number of procedures fell – an “embedded” pandemic impact –“I worry that it’s inevitable that complication rates will tick up a bit,” said Dr. Garratt, director of the Center for Heart and Vascular Health at Christiana Care in Newark, Del.
By the same token, he added, this situation with regard to CTOs “parallels what’s happening elsewhere in interventional medicine and medicine broadly; numbers are increasing and we’re busy again. In most domains we’re not as busy as we had been prepandemic, and time will allow us to catch up.”
PROGRESS-CTO has received funding from the Joseph F. and Mary M. Fleischhacker Foundation and the Abbott Northwestern Hospital Foundation Innovation Grant.
Dr. Kostantinis has no disclosures. Dr. Garratt is an advisory board member for Abbott.
FROM SCAI 2022