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Shielding ‘had little effect on rates of COVID-19 in rheumatology patients’
Researchers from the Royal Wolverhampton (England) Hospitals National Health Service Trust say shielding – or taking extra steps to protect oneself against COVID-19 if at high risk – has had little effect on the incidence of COVID-19 in rheumatology patients.
In Annals of the Rheumatic Diseases, the team present data from a large rheumatology cohort in the United Kingdom between Feb. 1, 2020, and May 1, 2020. Patients’ health-related quality of life (HRQoL) was assessed on April 24, 2020, using the Short Form–12 to assess Physical Component Score (PCS) and Mental Component Score (MCS) on a 0-100 scale (0 being the lowest score).
Of 1,693 participants, at the time, there were 61 (3.6%) reported COVID-19 infections (eight had confirmatory swab results; three had clinical diagnoses with “false-negative” swab; 50 had clinical diagnosis but were not swabbed in line with U.K. policy at that time).
Seven of the 61 (11.5%) patients were hospitalized, two requiring intensive care. Of this group, 24 were shielding, a similar proportion to the non-COVID cohort (24/61 vs. 768/1,632; P = .24). There was no significant effect of treatment on self-reported COVID-19 incidence.
There were significantly lower MCSs in the infected group, compared with control participants (38.9 vs. 42.2; mean difference: −3.3; 95% CI, −5.2 to 1.4; P < .001). There was no difference in PCS (−0.4; 95% CI, −2.1 to 1.3).
In patients without COVID-19, the ‘shielding’ group had significantly lower MCS (−2.1; 95% CI, −2.9 to 1.4; P < .001) and PCS (−2.2; 95% CI, −3.8 to 2.5; P < .001) than those not shielding.
There were no differences in MCSs between patients on non–biologic disease-modifying antirheumatic drugs and biologic DMARDs (0.6; 95% CI, 0.1-2.4).
The findings suggest that overall strict social isolation had little effect on the incidence of COVID-19 infection. Patients who had suffered from the virus had reduced mental but not physical HRQoL scores.
There was an adverse effect on both MCS and PCS reported by patients undergoing shielding,n compared with those not. This has also been shown in previous work from India.
This article originally appeared on Univadis, part of the Medscape Professional Network.
Researchers from the Royal Wolverhampton (England) Hospitals National Health Service Trust say shielding – or taking extra steps to protect oneself against COVID-19 if at high risk – has had little effect on the incidence of COVID-19 in rheumatology patients.
In Annals of the Rheumatic Diseases, the team present data from a large rheumatology cohort in the United Kingdom between Feb. 1, 2020, and May 1, 2020. Patients’ health-related quality of life (HRQoL) was assessed on April 24, 2020, using the Short Form–12 to assess Physical Component Score (PCS) and Mental Component Score (MCS) on a 0-100 scale (0 being the lowest score).
Of 1,693 participants, at the time, there were 61 (3.6%) reported COVID-19 infections (eight had confirmatory swab results; three had clinical diagnoses with “false-negative” swab; 50 had clinical diagnosis but were not swabbed in line with U.K. policy at that time).
Seven of the 61 (11.5%) patients were hospitalized, two requiring intensive care. Of this group, 24 were shielding, a similar proportion to the non-COVID cohort (24/61 vs. 768/1,632; P = .24). There was no significant effect of treatment on self-reported COVID-19 incidence.
There were significantly lower MCSs in the infected group, compared with control participants (38.9 vs. 42.2; mean difference: −3.3; 95% CI, −5.2 to 1.4; P < .001). There was no difference in PCS (−0.4; 95% CI, −2.1 to 1.3).
In patients without COVID-19, the ‘shielding’ group had significantly lower MCS (−2.1; 95% CI, −2.9 to 1.4; P < .001) and PCS (−2.2; 95% CI, −3.8 to 2.5; P < .001) than those not shielding.
There were no differences in MCSs between patients on non–biologic disease-modifying antirheumatic drugs and biologic DMARDs (0.6; 95% CI, 0.1-2.4).
The findings suggest that overall strict social isolation had little effect on the incidence of COVID-19 infection. Patients who had suffered from the virus had reduced mental but not physical HRQoL scores.
There was an adverse effect on both MCS and PCS reported by patients undergoing shielding,n compared with those not. This has also been shown in previous work from India.
This article originally appeared on Univadis, part of the Medscape Professional Network.
Researchers from the Royal Wolverhampton (England) Hospitals National Health Service Trust say shielding – or taking extra steps to protect oneself against COVID-19 if at high risk – has had little effect on the incidence of COVID-19 in rheumatology patients.
In Annals of the Rheumatic Diseases, the team present data from a large rheumatology cohort in the United Kingdom between Feb. 1, 2020, and May 1, 2020. Patients’ health-related quality of life (HRQoL) was assessed on April 24, 2020, using the Short Form–12 to assess Physical Component Score (PCS) and Mental Component Score (MCS) on a 0-100 scale (0 being the lowest score).
Of 1,693 participants, at the time, there were 61 (3.6%) reported COVID-19 infections (eight had confirmatory swab results; three had clinical diagnoses with “false-negative” swab; 50 had clinical diagnosis but were not swabbed in line with U.K. policy at that time).
Seven of the 61 (11.5%) patients were hospitalized, two requiring intensive care. Of this group, 24 were shielding, a similar proportion to the non-COVID cohort (24/61 vs. 768/1,632; P = .24). There was no significant effect of treatment on self-reported COVID-19 incidence.
There were significantly lower MCSs in the infected group, compared with control participants (38.9 vs. 42.2; mean difference: −3.3; 95% CI, −5.2 to 1.4; P < .001). There was no difference in PCS (−0.4; 95% CI, −2.1 to 1.3).
In patients without COVID-19, the ‘shielding’ group had significantly lower MCS (−2.1; 95% CI, −2.9 to 1.4; P < .001) and PCS (−2.2; 95% CI, −3.8 to 2.5; P < .001) than those not shielding.
There were no differences in MCSs between patients on non–biologic disease-modifying antirheumatic drugs and biologic DMARDs (0.6; 95% CI, 0.1-2.4).
The findings suggest that overall strict social isolation had little effect on the incidence of COVID-19 infection. Patients who had suffered from the virus had reduced mental but not physical HRQoL scores.
There was an adverse effect on both MCS and PCS reported by patients undergoing shielding,n compared with those not. This has also been shown in previous work from India.
This article originally appeared on Univadis, part of the Medscape Professional Network.
Rheumatologist Lindsey Criswell named new NIAMS director
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Dr. Criswell, vice chancellor of research at the University of California, San Francisco, will replace acting director Robert H. Carter, MD, who has overseen NIAMS since December 2018, following the unexpected death of longtime director Stephen I. Katz, MD, PhD, who had directed the institute since 1995. She will start her new role in early 2021, according to the NIH.
“Dr. Criswell has rich experience as a clinician, researcher, and administrator. Her ability to oversee the research program of one of the country’s top research-intensive medical schools, and her expertise in autoimmune diseases, including rheumatoid arthritis and lupus, make her well-positioned to direct NIAMS,” said NIH director Francis S. Collins, MD, PhD, said in an announcement.
Dr. Criswell, who holds the Kenneth H. Fye, M.D., endowed chair in rheumatology and the Jean S. Engleman Distinguished Professorship in Rheumatology at UCSF, spent most of her career at the university, focusing her research on the genetics and epidemiology of human autoimmune disease, particularly rheumatoid arthritis and systemic lupus erythematosus. Using genome-wide association and other genetic studies, her research team contributed to the identification of more than 30 genes linked to these disorders, according to the NIH.
NIAMS has a budget of nearly $625 million and its extramural research program supports scientific studies and research training and career development throughout the country through grants and contracts to research organizations in fields that include rheumatology, muscle biology, orthopedics, bone and mineral metabolism, and dermatology.
.
Dr. Criswell, vice chancellor of research at the University of California, San Francisco, will replace acting director Robert H. Carter, MD, who has overseen NIAMS since December 2018, following the unexpected death of longtime director Stephen I. Katz, MD, PhD, who had directed the institute since 1995. She will start her new role in early 2021, according to the NIH.
“Dr. Criswell has rich experience as a clinician, researcher, and administrator. Her ability to oversee the research program of one of the country’s top research-intensive medical schools, and her expertise in autoimmune diseases, including rheumatoid arthritis and lupus, make her well-positioned to direct NIAMS,” said NIH director Francis S. Collins, MD, PhD, said in an announcement.
Dr. Criswell, who holds the Kenneth H. Fye, M.D., endowed chair in rheumatology and the Jean S. Engleman Distinguished Professorship in Rheumatology at UCSF, spent most of her career at the university, focusing her research on the genetics and epidemiology of human autoimmune disease, particularly rheumatoid arthritis and systemic lupus erythematosus. Using genome-wide association and other genetic studies, her research team contributed to the identification of more than 30 genes linked to these disorders, according to the NIH.
NIAMS has a budget of nearly $625 million and its extramural research program supports scientific studies and research training and career development throughout the country through grants and contracts to research organizations in fields that include rheumatology, muscle biology, orthopedics, bone and mineral metabolism, and dermatology.
.
Dr. Criswell, vice chancellor of research at the University of California, San Francisco, will replace acting director Robert H. Carter, MD, who has overseen NIAMS since December 2018, following the unexpected death of longtime director Stephen I. Katz, MD, PhD, who had directed the institute since 1995. She will start her new role in early 2021, according to the NIH.
“Dr. Criswell has rich experience as a clinician, researcher, and administrator. Her ability to oversee the research program of one of the country’s top research-intensive medical schools, and her expertise in autoimmune diseases, including rheumatoid arthritis and lupus, make her well-positioned to direct NIAMS,” said NIH director Francis S. Collins, MD, PhD, said in an announcement.
Dr. Criswell, who holds the Kenneth H. Fye, M.D., endowed chair in rheumatology and the Jean S. Engleman Distinguished Professorship in Rheumatology at UCSF, spent most of her career at the university, focusing her research on the genetics and epidemiology of human autoimmune disease, particularly rheumatoid arthritis and systemic lupus erythematosus. Using genome-wide association and other genetic studies, her research team contributed to the identification of more than 30 genes linked to these disorders, according to the NIH.
NIAMS has a budget of nearly $625 million and its extramural research program supports scientific studies and research training and career development throughout the country through grants and contracts to research organizations in fields that include rheumatology, muscle biology, orthopedics, bone and mineral metabolism, and dermatology.
All NSAIDs raise post-MI risk but some are safer than others: Next chapter
Patients on antithrombotics after an acute MI will face a greater risk for bleeding and secondary cardiovascular (CV) events if they start taking any nonaspirin NSAID, confirms a large observational study.
Like other research before it, the new study suggests those risks will be much lower for some nonaspirin NSAIDs than others. But it may also challenge at least some conventional thinking about the safety of these drugs, and is based solely on a large cohort in South Korea, a group for which such NSAID data has been in short supply.
“It was intriguing that our study presented better safety profiles with celecoxib and meloxicam versus other subtypes of NSAIDs,” noted the report, published online July 27 in the Journal of the American College of Cardiology.
Most of the NSAIDs included in the analysis, “including naproxen, conferred a significantly higher risk for cardiovascular and bleeding events, compared with celecoxib and meloxicam,” wrote the authors, led by Dong Oh Kang, MD, Korea University Guro Hospital, Seoul, South Korea.
A main contribution of the study “is the thorough and comprehensive evaluation of the Korean population by use of the nationwide prescription claims database that reflects real-world clinical practice,” senior author Cheol Ung Choi, MD, PhD, of the same institution, said in an interview.
“Because we included the largest number of patients of any comparable clinical studies on NSAID treatment after MI thus far, our study may allow the generalizability of the adverse events of NSAIDs to all patients by constituting global evidence encompassing different population groups,” Dr. Choi said.
The analysis has limitations along with its strengths, the authors acknowledged, including its observational design and potential for confounding not addressed in statistical adjustments.
Observers of the study concurred, but some cited evidence pointing to such confounding that is serious enough to question the entire study’s validity.
Among the cohort of more than 100,000 patients followed for an average of about 2.3 years after their MI, the adjusted risk of thromboembolic CV events went up almost 7 times for those who took any NSAID for at least 4 consecutive weeks, compared with those who didn’t take NSAIDs, based on prescription records.
Their adjusted risk of bleeding events – which included gastrointestinal, intracranial, respiratory, or urinary tract bleeding or posthemorrhagic anemia, the group writes – was increased 300%.
There was wide variance in the adjusted hazard ratios for outcomes by type of NSAID. The risk of CV events climbed from a low of about 3 with meloxicam and almost 5 for celecoxib to more than 10 and 12 for naproxen and dexibuprofen, respectively.
The hazard ratios for bleeding ranged from about 3 for both meloxicam and celecoxib to more than 6 for naproxen.
Of note, celecoxib and meloxicam both preferentially target the cyclooxygenase type 2 (COX-2) pathway, and naproxen among NSAIDs once had a reputation for relative cardiac safety, although subsequent studies have challenged that notion.
“On the basis of the contemporary guidelines, NSAID treatment should be limited as much as possible after MI; however, our data suggest that celecoxib and meloxicam could be considered possible alternative choices in patients with MI when NSAID prescription is unavoidable,” the group wrote.
They acknowledged some limitations of the analysis, including an observational design and the possibility of unidentified confounders; that mortality outcomes were not available from the National Health Insurance Service database used in the study; and that the 2009-2013 span for the data didn’t allow consideration of more contemporary antiplatelet agents and direct oral anticoagulants.
Also, NSAID use was based on prescriptions without regard to over-the-counter usage. Although use of over-the-counter NSAIDs is common in Korea, “most MI patients in Korea are prescribed most medications, including NSAIDs, in the hospital. So I think that usage of over-the-counter NSAIDs did not change the results,” Dr. Choi said.
“This study breaks new ground by demonstrating cardiovascular safety of meloxicam (and not only of celecoxib), probably because of its higher COX-2 selectivity,” wrote the authors of an accompanying editorial, Juan J. Badimon, PhD, and Carlos G. Santos-Gallego, MD, both of the Icahn School of Medicine at Mount Sinai, New York.
Notably, “this paper rejects the cardiovascular safety of naproxen, which had been suggested classically and in the previous Danish data, but that was not evident in this study.” The finding is consistent with the PRECISION trial, in which both bleeding and CV risk were increased with naproxen versus other NSAIDs, observed Dr. Badimon and Dr. Santos-Gallego.
They agreed with the authors in recommending that, “although NSAID treatment should be avoided in patients with MI, if the use of NSAIDs is inevitable due to comorbidities, the prescription of celecoxib and meloxicam could be considered as alternative options.”
But, “as no study is perfect, this article also presents some limitations,” the editorial agreed, citing some of the same issues noted by Dr. Kang and associates, along with potential confounding by indication and the lack of “clinical information to adjust (e.g., angiographic features, left ventricular function).”
“There’s undoubtedly residual confounding,” James M. Brophy, MD, PhD, a pharmacoepidemiologist at McGill University, Montreal, said in an interview.
The 400%-900% relative risks for CV events “are just too far in left field, compared to everything else we know,” he said. “There has never been a class of drugs that have shown this sort of magnitude of effect for adverse events.”
Even in PRECISION with its more than 24,000 high-coronary-risk patients randomized and followed for 5 years, Dr. Brophy observed, relative risks for the different NSAIDs varied by an order of magnitude of only 1-2.
“You should be interpreting things in the context of what is already known,” Dr. Brophy said. “The only conclusion I would draw is the paper is fatally flawed.”
The registry included 108,232 primarily male patients followed from their first diagnosed MI for CV and bleeding events. About 1.9% were prescribed at least one NSAID for 4 or more consecutive weeks during the follow-up period averaging 2.3 years, the group reported.
The most frequently prescribed NSAID was diclofenac, at about 72% of prescribed NSAIDs in the analysis for CV events and about 69% in the bleeding-event analysis.
Adding any NSAID to post-MI antithrombotic therapy led to an adjusted HR of 6.96 (P < .001) for CV events and 4.08 (P < .001) for bleeding events, compared with no NSAID treatment.
The 88% of the cohort who were on dual-antiplatelet therapy with aspirin and clopidogrel showed very nearly the same risk increases for both endpoints.
Further studies are needed to confirm the results “and ensure their generalizability to other populations,” Dr. Choi said. They should be validated especially using the claims data bases of countries near Korea, “such as Japan and Taiwan, to examine the reproducibility of the results in similar ethnic populations.”
That the study focused on a cohort in Korea is a strength, contended the authors as well as Dr. Badimon and Dr. Santos-Gallego, given “that most data about NSAIDs were extracted from Western populations, but the risk of thrombosis/bleeding post-MI varies according to ethnicity,” according to the editorial
Dr. Brophy agreed, but doubted that ethnic differences are responsible for variation in relative risks between the current results and other studies. “There are pharmacogenomic differences between different ethnicities as to how they activate these drugs. But I suspect that sort of difference is really minor. Maybe it leads to a 2% or a 5% difference in risks.”
Dr. Kang and associates, Dr. Badimon, Dr. Santos-Gallego, and Dr. Brophy disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
Patients on antithrombotics after an acute MI will face a greater risk for bleeding and secondary cardiovascular (CV) events if they start taking any nonaspirin NSAID, confirms a large observational study.
Like other research before it, the new study suggests those risks will be much lower for some nonaspirin NSAIDs than others. But it may also challenge at least some conventional thinking about the safety of these drugs, and is based solely on a large cohort in South Korea, a group for which such NSAID data has been in short supply.
“It was intriguing that our study presented better safety profiles with celecoxib and meloxicam versus other subtypes of NSAIDs,” noted the report, published online July 27 in the Journal of the American College of Cardiology.
Most of the NSAIDs included in the analysis, “including naproxen, conferred a significantly higher risk for cardiovascular and bleeding events, compared with celecoxib and meloxicam,” wrote the authors, led by Dong Oh Kang, MD, Korea University Guro Hospital, Seoul, South Korea.
A main contribution of the study “is the thorough and comprehensive evaluation of the Korean population by use of the nationwide prescription claims database that reflects real-world clinical practice,” senior author Cheol Ung Choi, MD, PhD, of the same institution, said in an interview.
“Because we included the largest number of patients of any comparable clinical studies on NSAID treatment after MI thus far, our study may allow the generalizability of the adverse events of NSAIDs to all patients by constituting global evidence encompassing different population groups,” Dr. Choi said.
The analysis has limitations along with its strengths, the authors acknowledged, including its observational design and potential for confounding not addressed in statistical adjustments.
Observers of the study concurred, but some cited evidence pointing to such confounding that is serious enough to question the entire study’s validity.
Among the cohort of more than 100,000 patients followed for an average of about 2.3 years after their MI, the adjusted risk of thromboembolic CV events went up almost 7 times for those who took any NSAID for at least 4 consecutive weeks, compared with those who didn’t take NSAIDs, based on prescription records.
Their adjusted risk of bleeding events – which included gastrointestinal, intracranial, respiratory, or urinary tract bleeding or posthemorrhagic anemia, the group writes – was increased 300%.
There was wide variance in the adjusted hazard ratios for outcomes by type of NSAID. The risk of CV events climbed from a low of about 3 with meloxicam and almost 5 for celecoxib to more than 10 and 12 for naproxen and dexibuprofen, respectively.
The hazard ratios for bleeding ranged from about 3 for both meloxicam and celecoxib to more than 6 for naproxen.
Of note, celecoxib and meloxicam both preferentially target the cyclooxygenase type 2 (COX-2) pathway, and naproxen among NSAIDs once had a reputation for relative cardiac safety, although subsequent studies have challenged that notion.
“On the basis of the contemporary guidelines, NSAID treatment should be limited as much as possible after MI; however, our data suggest that celecoxib and meloxicam could be considered possible alternative choices in patients with MI when NSAID prescription is unavoidable,” the group wrote.
They acknowledged some limitations of the analysis, including an observational design and the possibility of unidentified confounders; that mortality outcomes were not available from the National Health Insurance Service database used in the study; and that the 2009-2013 span for the data didn’t allow consideration of more contemporary antiplatelet agents and direct oral anticoagulants.
Also, NSAID use was based on prescriptions without regard to over-the-counter usage. Although use of over-the-counter NSAIDs is common in Korea, “most MI patients in Korea are prescribed most medications, including NSAIDs, in the hospital. So I think that usage of over-the-counter NSAIDs did not change the results,” Dr. Choi said.
“This study breaks new ground by demonstrating cardiovascular safety of meloxicam (and not only of celecoxib), probably because of its higher COX-2 selectivity,” wrote the authors of an accompanying editorial, Juan J. Badimon, PhD, and Carlos G. Santos-Gallego, MD, both of the Icahn School of Medicine at Mount Sinai, New York.
Notably, “this paper rejects the cardiovascular safety of naproxen, which had been suggested classically and in the previous Danish data, but that was not evident in this study.” The finding is consistent with the PRECISION trial, in which both bleeding and CV risk were increased with naproxen versus other NSAIDs, observed Dr. Badimon and Dr. Santos-Gallego.
They agreed with the authors in recommending that, “although NSAID treatment should be avoided in patients with MI, if the use of NSAIDs is inevitable due to comorbidities, the prescription of celecoxib and meloxicam could be considered as alternative options.”
But, “as no study is perfect, this article also presents some limitations,” the editorial agreed, citing some of the same issues noted by Dr. Kang and associates, along with potential confounding by indication and the lack of “clinical information to adjust (e.g., angiographic features, left ventricular function).”
“There’s undoubtedly residual confounding,” James M. Brophy, MD, PhD, a pharmacoepidemiologist at McGill University, Montreal, said in an interview.
The 400%-900% relative risks for CV events “are just too far in left field, compared to everything else we know,” he said. “There has never been a class of drugs that have shown this sort of magnitude of effect for adverse events.”
Even in PRECISION with its more than 24,000 high-coronary-risk patients randomized and followed for 5 years, Dr. Brophy observed, relative risks for the different NSAIDs varied by an order of magnitude of only 1-2.
“You should be interpreting things in the context of what is already known,” Dr. Brophy said. “The only conclusion I would draw is the paper is fatally flawed.”
The registry included 108,232 primarily male patients followed from their first diagnosed MI for CV and bleeding events. About 1.9% were prescribed at least one NSAID for 4 or more consecutive weeks during the follow-up period averaging 2.3 years, the group reported.
The most frequently prescribed NSAID was diclofenac, at about 72% of prescribed NSAIDs in the analysis for CV events and about 69% in the bleeding-event analysis.
Adding any NSAID to post-MI antithrombotic therapy led to an adjusted HR of 6.96 (P < .001) for CV events and 4.08 (P < .001) for bleeding events, compared with no NSAID treatment.
The 88% of the cohort who were on dual-antiplatelet therapy with aspirin and clopidogrel showed very nearly the same risk increases for both endpoints.
Further studies are needed to confirm the results “and ensure their generalizability to other populations,” Dr. Choi said. They should be validated especially using the claims data bases of countries near Korea, “such as Japan and Taiwan, to examine the reproducibility of the results in similar ethnic populations.”
That the study focused on a cohort in Korea is a strength, contended the authors as well as Dr. Badimon and Dr. Santos-Gallego, given “that most data about NSAIDs were extracted from Western populations, but the risk of thrombosis/bleeding post-MI varies according to ethnicity,” according to the editorial
Dr. Brophy agreed, but doubted that ethnic differences are responsible for variation in relative risks between the current results and other studies. “There are pharmacogenomic differences between different ethnicities as to how they activate these drugs. But I suspect that sort of difference is really minor. Maybe it leads to a 2% or a 5% difference in risks.”
Dr. Kang and associates, Dr. Badimon, Dr. Santos-Gallego, and Dr. Brophy disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
Patients on antithrombotics after an acute MI will face a greater risk for bleeding and secondary cardiovascular (CV) events if they start taking any nonaspirin NSAID, confirms a large observational study.
Like other research before it, the new study suggests those risks will be much lower for some nonaspirin NSAIDs than others. But it may also challenge at least some conventional thinking about the safety of these drugs, and is based solely on a large cohort in South Korea, a group for which such NSAID data has been in short supply.
“It was intriguing that our study presented better safety profiles with celecoxib and meloxicam versus other subtypes of NSAIDs,” noted the report, published online July 27 in the Journal of the American College of Cardiology.
Most of the NSAIDs included in the analysis, “including naproxen, conferred a significantly higher risk for cardiovascular and bleeding events, compared with celecoxib and meloxicam,” wrote the authors, led by Dong Oh Kang, MD, Korea University Guro Hospital, Seoul, South Korea.
A main contribution of the study “is the thorough and comprehensive evaluation of the Korean population by use of the nationwide prescription claims database that reflects real-world clinical practice,” senior author Cheol Ung Choi, MD, PhD, of the same institution, said in an interview.
“Because we included the largest number of patients of any comparable clinical studies on NSAID treatment after MI thus far, our study may allow the generalizability of the adverse events of NSAIDs to all patients by constituting global evidence encompassing different population groups,” Dr. Choi said.
The analysis has limitations along with its strengths, the authors acknowledged, including its observational design and potential for confounding not addressed in statistical adjustments.
Observers of the study concurred, but some cited evidence pointing to such confounding that is serious enough to question the entire study’s validity.
Among the cohort of more than 100,000 patients followed for an average of about 2.3 years after their MI, the adjusted risk of thromboembolic CV events went up almost 7 times for those who took any NSAID for at least 4 consecutive weeks, compared with those who didn’t take NSAIDs, based on prescription records.
Their adjusted risk of bleeding events – which included gastrointestinal, intracranial, respiratory, or urinary tract bleeding or posthemorrhagic anemia, the group writes – was increased 300%.
There was wide variance in the adjusted hazard ratios for outcomes by type of NSAID. The risk of CV events climbed from a low of about 3 with meloxicam and almost 5 for celecoxib to more than 10 and 12 for naproxen and dexibuprofen, respectively.
The hazard ratios for bleeding ranged from about 3 for both meloxicam and celecoxib to more than 6 for naproxen.
Of note, celecoxib and meloxicam both preferentially target the cyclooxygenase type 2 (COX-2) pathway, and naproxen among NSAIDs once had a reputation for relative cardiac safety, although subsequent studies have challenged that notion.
“On the basis of the contemporary guidelines, NSAID treatment should be limited as much as possible after MI; however, our data suggest that celecoxib and meloxicam could be considered possible alternative choices in patients with MI when NSAID prescription is unavoidable,” the group wrote.
They acknowledged some limitations of the analysis, including an observational design and the possibility of unidentified confounders; that mortality outcomes were not available from the National Health Insurance Service database used in the study; and that the 2009-2013 span for the data didn’t allow consideration of more contemporary antiplatelet agents and direct oral anticoagulants.
Also, NSAID use was based on prescriptions without regard to over-the-counter usage. Although use of over-the-counter NSAIDs is common in Korea, “most MI patients in Korea are prescribed most medications, including NSAIDs, in the hospital. So I think that usage of over-the-counter NSAIDs did not change the results,” Dr. Choi said.
“This study breaks new ground by demonstrating cardiovascular safety of meloxicam (and not only of celecoxib), probably because of its higher COX-2 selectivity,” wrote the authors of an accompanying editorial, Juan J. Badimon, PhD, and Carlos G. Santos-Gallego, MD, both of the Icahn School of Medicine at Mount Sinai, New York.
Notably, “this paper rejects the cardiovascular safety of naproxen, which had been suggested classically and in the previous Danish data, but that was not evident in this study.” The finding is consistent with the PRECISION trial, in which both bleeding and CV risk were increased with naproxen versus other NSAIDs, observed Dr. Badimon and Dr. Santos-Gallego.
They agreed with the authors in recommending that, “although NSAID treatment should be avoided in patients with MI, if the use of NSAIDs is inevitable due to comorbidities, the prescription of celecoxib and meloxicam could be considered as alternative options.”
But, “as no study is perfect, this article also presents some limitations,” the editorial agreed, citing some of the same issues noted by Dr. Kang and associates, along with potential confounding by indication and the lack of “clinical information to adjust (e.g., angiographic features, left ventricular function).”
“There’s undoubtedly residual confounding,” James M. Brophy, MD, PhD, a pharmacoepidemiologist at McGill University, Montreal, said in an interview.
The 400%-900% relative risks for CV events “are just too far in left field, compared to everything else we know,” he said. “There has never been a class of drugs that have shown this sort of magnitude of effect for adverse events.”
Even in PRECISION with its more than 24,000 high-coronary-risk patients randomized and followed for 5 years, Dr. Brophy observed, relative risks for the different NSAIDs varied by an order of magnitude of only 1-2.
“You should be interpreting things in the context of what is already known,” Dr. Brophy said. “The only conclusion I would draw is the paper is fatally flawed.”
The registry included 108,232 primarily male patients followed from their first diagnosed MI for CV and bleeding events. About 1.9% were prescribed at least one NSAID for 4 or more consecutive weeks during the follow-up period averaging 2.3 years, the group reported.
The most frequently prescribed NSAID was diclofenac, at about 72% of prescribed NSAIDs in the analysis for CV events and about 69% in the bleeding-event analysis.
Adding any NSAID to post-MI antithrombotic therapy led to an adjusted HR of 6.96 (P < .001) for CV events and 4.08 (P < .001) for bleeding events, compared with no NSAID treatment.
The 88% of the cohort who were on dual-antiplatelet therapy with aspirin and clopidogrel showed very nearly the same risk increases for both endpoints.
Further studies are needed to confirm the results “and ensure their generalizability to other populations,” Dr. Choi said. They should be validated especially using the claims data bases of countries near Korea, “such as Japan and Taiwan, to examine the reproducibility of the results in similar ethnic populations.”
That the study focused on a cohort in Korea is a strength, contended the authors as well as Dr. Badimon and Dr. Santos-Gallego, given “that most data about NSAIDs were extracted from Western populations, but the risk of thrombosis/bleeding post-MI varies according to ethnicity,” according to the editorial
Dr. Brophy agreed, but doubted that ethnic differences are responsible for variation in relative risks between the current results and other studies. “There are pharmacogenomic differences between different ethnicities as to how they activate these drugs. But I suspect that sort of difference is really minor. Maybe it leads to a 2% or a 5% difference in risks.”
Dr. Kang and associates, Dr. Badimon, Dr. Santos-Gallego, and Dr. Brophy disclosed no relevant financial relationships.
A version of this article originally appeared on Medscape.com.
Fracture risk prediction: No benefit to repeat BMD testing in postmenopausal women
On the basis of the findings, published online in JAMA Internal Medicine, the authors recommend against routine repeat testing in postmenopausal women. Other experts, however, caution that the results may not be so broadly generalizable.
For the investigation, Carolyn J. Crandall, MD, of the division of general internal medicine and health services research at the University of California, Los Angeles, and colleagues analyzed data from 7,419 women enrolled in the prospective Women’s Health Initiative study and who underwent baseline and repeat dual-energy x-ray absorptiometry (DXA) between 1993 and 2010. The researchers excluded patients who reported using bisphosphonates, calcitonin, or selective estrogen-receptor modulators, those with a history of major osteoporotic fracture, or those who lacked follow-up visits. The mean body mass index (BMI) of the study population was 28.7 kg/m2, and the mean age was 66.1 years.
The mean follow-up after the repeat BMD test was 9.0 years, during which period 732 (9.9%) of the women experienced a major osteoporotic fracture, and 139 (1.9%) experienced hip fractures.
To determine whether repeat testing improved fracture risk discrimination, the researchers calculated area under the receiver operating characteristic curve (AUROC) for baseline BMD, absolute change in BMD, and the combination of baseline BMD and change in BMD.
With respect to any major osteoporotic fracture risk, the AUROC values for total hip BMD at baseline, change in total hip BMD at 3 years, and the combination of the two, respectively, were 0.61 (95% confidence interval, 0.59-0.63), 0.53 (95% CI, 0.51-0.55), and 0.61 (95% CI, 0.59-0.63). For hip fracture risk, the respective AUROC values were 0.71 (95% CI, 0.67-0.75), 0.61 (95% CI, 0.56-0.65), and 0.73 (95% CI, 0.69-0.77), the authors reported.
Similar results were observed for femoral neck and lumbar spine BMD measurements. The associations between BMD changes and fracture risk were consistent across age, race, ethnicity, BMI, and baseline BMD T-score subgroups.
Although baseline BMD and change in BMD were independently associated with incident fracture, the association was stronger for lower baseline BMD than the 3-year absolute change in BMD, the authors stated.
The findings, which are consistent with those of previous investigations that involved older adults, are notable because of the age range of the population, according to the authors. “To our knowledge, this is the first prospective study that addressed this issue in a study cohort that included younger postmenopausal U.S. women,” they wrote. “Forty-four percent of our study population was younger than 65 years.”
The authors wrote that, given the lack of benefit associated with repeat BMD testing, such tests should no longer be routinely performed. “Our findings further suggest that resources should be devoted to increasing the underuse of baseline BMD testing among women aged [between] 65 and 85 years, one-quarter of whom do not receive an initial BMD test.”
However, some experts are not comfortable with the broad recommendation to skip repeat testing in the general population. “This is a great study, and it gives important information. However, we know, even in the real world, that patients can lose BMD in this time frame and not really fracture. This does not mean that they will not fracture further down the road,” said Pauline Camacho, MD, director of Loyola University Medical Center’s Osteoporosis and Metabolic Bone Disease Center in Chicago,. “The value of doing BMD goes beyond predicting fracture risk. It also helps assess patient compliance and detect the presence of uncorrected secondary causes of osteoporosis that are limiting the response to therapy, including failure to absorb oral bisphosphonates, vitamin D deficiency, or hyperparathyroidism.”
In addition, patients for whom treatment is initiated would want to know whether it’s working. “Seeing the BMD response to therapy is helpful to both clinicians and patients,” Dr. Camacho said in an interview.
Another concern is the study population. “The study was designed to assess the clinical utility of repeating a screening BMD test in a population of low-risk women -- older postmenopausal women with remarkably good BMD on initial testing,” according to E. Michael Lewiecki, MD, vice president of the National Osteoporosis Foundation and director of the New Mexico Clinical Research and Osteoporosis Center in Albuquerque. “Not surprisingly, with what we know about the expected age-related rate of bone loss, there was only a modest decrease in BMD and little clinical utility in repeating DXA in 3 years. However, repeat testing is an important component in the care of many patients seen in clinical practice.”
There are numerous situations in clinical practice in which repeat BMD testing can enhance patient care and potentially improve outcomes, Dr. Lewiecki said in an interview. “Repeating BMD 1-2 years after starting osteoporosis therapy is a useful way to assess response and determine whether the patient is on a pathway to achieving an acceptable level of fracture risk with a strategy called treat to target.”
Additionally, patients starting high-dose glucocorticoids who are at high risk for rapid bone loss may benefit from undergoing baseline BMD testing and having a follow-up test 1 year later or even sooner, he said. Further, for early postmenopausal women, the rate of bone loss may be accelerated and may be faster than age-related bone loss later in life. For this reason, “close monitoring of BMD may be used to determine when a treatment threshold has been crossed and pharmacological therapy is indicated.”
The most important message from this study for clinicians and healthcare policymakers is not the relative value of the repeat BMD testing, Dr. Lewiecki stated. Rather, it is the call to action regarding the underuse of BMD testing. “There is a global crisis in the care of osteoporosis that is characterized by underdiagnosis and undertreatment of patients at risk for fracture. Many patients who could benefit from treatment to reduce fracture risk are not receiving it, resulting in disability and deaths from fractures that might have been prevented. We need more bone density testing in appropriately selected patients to identify high-risk patients and intervene to reduce fracture risk,” he said. “DXA is an inexpensive and highly versatile clinical tool with many applications in clinical practice. When used wisely, it can be extraordinarily useful to identify and monitor high-risk patients, with the goal of reducing the burden of osteoporotic fractures.”
The barriers to performing baseline BMD measurement in this population are poorly understood and not well researched, Dr. Crandall said in an interview. “I expect that they relate to the multiple competing demands on primary care physicians, who are, for example, trying to juggle hypertension, a sprained ankle, diabetes, and complex social situations simultaneously with identifying appropriate candidates for osteoporosis screening and considering numerous other screening guidelines.”
The Women’s Health Initiative is funded by the National Heart, Lung, and Blood Institute; National Institutes of Health; and the Department of Health & Human Services. The study authors reported relationships with multiple companies, including Amgen, Pfizer, Bayer, Mithra, Norton Rose Fulbright, TherapeuticsMD, AbbVie, Radius, and Allergan. Dr. Camacho reported relationships with Amgen and Shire. Dr. Lewiecki reported relationships with Amgen, Radius Health, Alexion, Samsung Bioepis, Sandoz, Mereo, and Bindex.
A version of this article originally appeared on Medscape.com.
On the basis of the findings, published online in JAMA Internal Medicine, the authors recommend against routine repeat testing in postmenopausal women. Other experts, however, caution that the results may not be so broadly generalizable.
For the investigation, Carolyn J. Crandall, MD, of the division of general internal medicine and health services research at the University of California, Los Angeles, and colleagues analyzed data from 7,419 women enrolled in the prospective Women’s Health Initiative study and who underwent baseline and repeat dual-energy x-ray absorptiometry (DXA) between 1993 and 2010. The researchers excluded patients who reported using bisphosphonates, calcitonin, or selective estrogen-receptor modulators, those with a history of major osteoporotic fracture, or those who lacked follow-up visits. The mean body mass index (BMI) of the study population was 28.7 kg/m2, and the mean age was 66.1 years.
The mean follow-up after the repeat BMD test was 9.0 years, during which period 732 (9.9%) of the women experienced a major osteoporotic fracture, and 139 (1.9%) experienced hip fractures.
To determine whether repeat testing improved fracture risk discrimination, the researchers calculated area under the receiver operating characteristic curve (AUROC) for baseline BMD, absolute change in BMD, and the combination of baseline BMD and change in BMD.
With respect to any major osteoporotic fracture risk, the AUROC values for total hip BMD at baseline, change in total hip BMD at 3 years, and the combination of the two, respectively, were 0.61 (95% confidence interval, 0.59-0.63), 0.53 (95% CI, 0.51-0.55), and 0.61 (95% CI, 0.59-0.63). For hip fracture risk, the respective AUROC values were 0.71 (95% CI, 0.67-0.75), 0.61 (95% CI, 0.56-0.65), and 0.73 (95% CI, 0.69-0.77), the authors reported.
Similar results were observed for femoral neck and lumbar spine BMD measurements. The associations between BMD changes and fracture risk were consistent across age, race, ethnicity, BMI, and baseline BMD T-score subgroups.
Although baseline BMD and change in BMD were independently associated with incident fracture, the association was stronger for lower baseline BMD than the 3-year absolute change in BMD, the authors stated.
The findings, which are consistent with those of previous investigations that involved older adults, are notable because of the age range of the population, according to the authors. “To our knowledge, this is the first prospective study that addressed this issue in a study cohort that included younger postmenopausal U.S. women,” they wrote. “Forty-four percent of our study population was younger than 65 years.”
The authors wrote that, given the lack of benefit associated with repeat BMD testing, such tests should no longer be routinely performed. “Our findings further suggest that resources should be devoted to increasing the underuse of baseline BMD testing among women aged [between] 65 and 85 years, one-quarter of whom do not receive an initial BMD test.”
However, some experts are not comfortable with the broad recommendation to skip repeat testing in the general population. “This is a great study, and it gives important information. However, we know, even in the real world, that patients can lose BMD in this time frame and not really fracture. This does not mean that they will not fracture further down the road,” said Pauline Camacho, MD, director of Loyola University Medical Center’s Osteoporosis and Metabolic Bone Disease Center in Chicago,. “The value of doing BMD goes beyond predicting fracture risk. It also helps assess patient compliance and detect the presence of uncorrected secondary causes of osteoporosis that are limiting the response to therapy, including failure to absorb oral bisphosphonates, vitamin D deficiency, or hyperparathyroidism.”
In addition, patients for whom treatment is initiated would want to know whether it’s working. “Seeing the BMD response to therapy is helpful to both clinicians and patients,” Dr. Camacho said in an interview.
Another concern is the study population. “The study was designed to assess the clinical utility of repeating a screening BMD test in a population of low-risk women -- older postmenopausal women with remarkably good BMD on initial testing,” according to E. Michael Lewiecki, MD, vice president of the National Osteoporosis Foundation and director of the New Mexico Clinical Research and Osteoporosis Center in Albuquerque. “Not surprisingly, with what we know about the expected age-related rate of bone loss, there was only a modest decrease in BMD and little clinical utility in repeating DXA in 3 years. However, repeat testing is an important component in the care of many patients seen in clinical practice.”
There are numerous situations in clinical practice in which repeat BMD testing can enhance patient care and potentially improve outcomes, Dr. Lewiecki said in an interview. “Repeating BMD 1-2 years after starting osteoporosis therapy is a useful way to assess response and determine whether the patient is on a pathway to achieving an acceptable level of fracture risk with a strategy called treat to target.”
Additionally, patients starting high-dose glucocorticoids who are at high risk for rapid bone loss may benefit from undergoing baseline BMD testing and having a follow-up test 1 year later or even sooner, he said. Further, for early postmenopausal women, the rate of bone loss may be accelerated and may be faster than age-related bone loss later in life. For this reason, “close monitoring of BMD may be used to determine when a treatment threshold has been crossed and pharmacological therapy is indicated.”
The most important message from this study for clinicians and healthcare policymakers is not the relative value of the repeat BMD testing, Dr. Lewiecki stated. Rather, it is the call to action regarding the underuse of BMD testing. “There is a global crisis in the care of osteoporosis that is characterized by underdiagnosis and undertreatment of patients at risk for fracture. Many patients who could benefit from treatment to reduce fracture risk are not receiving it, resulting in disability and deaths from fractures that might have been prevented. We need more bone density testing in appropriately selected patients to identify high-risk patients and intervene to reduce fracture risk,” he said. “DXA is an inexpensive and highly versatile clinical tool with many applications in clinical practice. When used wisely, it can be extraordinarily useful to identify and monitor high-risk patients, with the goal of reducing the burden of osteoporotic fractures.”
The barriers to performing baseline BMD measurement in this population are poorly understood and not well researched, Dr. Crandall said in an interview. “I expect that they relate to the multiple competing demands on primary care physicians, who are, for example, trying to juggle hypertension, a sprained ankle, diabetes, and complex social situations simultaneously with identifying appropriate candidates for osteoporosis screening and considering numerous other screening guidelines.”
The Women’s Health Initiative is funded by the National Heart, Lung, and Blood Institute; National Institutes of Health; and the Department of Health & Human Services. The study authors reported relationships with multiple companies, including Amgen, Pfizer, Bayer, Mithra, Norton Rose Fulbright, TherapeuticsMD, AbbVie, Radius, and Allergan. Dr. Camacho reported relationships with Amgen and Shire. Dr. Lewiecki reported relationships with Amgen, Radius Health, Alexion, Samsung Bioepis, Sandoz, Mereo, and Bindex.
A version of this article originally appeared on Medscape.com.
On the basis of the findings, published online in JAMA Internal Medicine, the authors recommend against routine repeat testing in postmenopausal women. Other experts, however, caution that the results may not be so broadly generalizable.
For the investigation, Carolyn J. Crandall, MD, of the division of general internal medicine and health services research at the University of California, Los Angeles, and colleagues analyzed data from 7,419 women enrolled in the prospective Women’s Health Initiative study and who underwent baseline and repeat dual-energy x-ray absorptiometry (DXA) between 1993 and 2010. The researchers excluded patients who reported using bisphosphonates, calcitonin, or selective estrogen-receptor modulators, those with a history of major osteoporotic fracture, or those who lacked follow-up visits. The mean body mass index (BMI) of the study population was 28.7 kg/m2, and the mean age was 66.1 years.
The mean follow-up after the repeat BMD test was 9.0 years, during which period 732 (9.9%) of the women experienced a major osteoporotic fracture, and 139 (1.9%) experienced hip fractures.
To determine whether repeat testing improved fracture risk discrimination, the researchers calculated area under the receiver operating characteristic curve (AUROC) for baseline BMD, absolute change in BMD, and the combination of baseline BMD and change in BMD.
With respect to any major osteoporotic fracture risk, the AUROC values for total hip BMD at baseline, change in total hip BMD at 3 years, and the combination of the two, respectively, were 0.61 (95% confidence interval, 0.59-0.63), 0.53 (95% CI, 0.51-0.55), and 0.61 (95% CI, 0.59-0.63). For hip fracture risk, the respective AUROC values were 0.71 (95% CI, 0.67-0.75), 0.61 (95% CI, 0.56-0.65), and 0.73 (95% CI, 0.69-0.77), the authors reported.
Similar results were observed for femoral neck and lumbar spine BMD measurements. The associations between BMD changes and fracture risk were consistent across age, race, ethnicity, BMI, and baseline BMD T-score subgroups.
Although baseline BMD and change in BMD were independently associated with incident fracture, the association was stronger for lower baseline BMD than the 3-year absolute change in BMD, the authors stated.
The findings, which are consistent with those of previous investigations that involved older adults, are notable because of the age range of the population, according to the authors. “To our knowledge, this is the first prospective study that addressed this issue in a study cohort that included younger postmenopausal U.S. women,” they wrote. “Forty-four percent of our study population was younger than 65 years.”
The authors wrote that, given the lack of benefit associated with repeat BMD testing, such tests should no longer be routinely performed. “Our findings further suggest that resources should be devoted to increasing the underuse of baseline BMD testing among women aged [between] 65 and 85 years, one-quarter of whom do not receive an initial BMD test.”
However, some experts are not comfortable with the broad recommendation to skip repeat testing in the general population. “This is a great study, and it gives important information. However, we know, even in the real world, that patients can lose BMD in this time frame and not really fracture. This does not mean that they will not fracture further down the road,” said Pauline Camacho, MD, director of Loyola University Medical Center’s Osteoporosis and Metabolic Bone Disease Center in Chicago,. “The value of doing BMD goes beyond predicting fracture risk. It also helps assess patient compliance and detect the presence of uncorrected secondary causes of osteoporosis that are limiting the response to therapy, including failure to absorb oral bisphosphonates, vitamin D deficiency, or hyperparathyroidism.”
In addition, patients for whom treatment is initiated would want to know whether it’s working. “Seeing the BMD response to therapy is helpful to both clinicians and patients,” Dr. Camacho said in an interview.
Another concern is the study population. “The study was designed to assess the clinical utility of repeating a screening BMD test in a population of low-risk women -- older postmenopausal women with remarkably good BMD on initial testing,” according to E. Michael Lewiecki, MD, vice president of the National Osteoporosis Foundation and director of the New Mexico Clinical Research and Osteoporosis Center in Albuquerque. “Not surprisingly, with what we know about the expected age-related rate of bone loss, there was only a modest decrease in BMD and little clinical utility in repeating DXA in 3 years. However, repeat testing is an important component in the care of many patients seen in clinical practice.”
There are numerous situations in clinical practice in which repeat BMD testing can enhance patient care and potentially improve outcomes, Dr. Lewiecki said in an interview. “Repeating BMD 1-2 years after starting osteoporosis therapy is a useful way to assess response and determine whether the patient is on a pathway to achieving an acceptable level of fracture risk with a strategy called treat to target.”
Additionally, patients starting high-dose glucocorticoids who are at high risk for rapid bone loss may benefit from undergoing baseline BMD testing and having a follow-up test 1 year later or even sooner, he said. Further, for early postmenopausal women, the rate of bone loss may be accelerated and may be faster than age-related bone loss later in life. For this reason, “close monitoring of BMD may be used to determine when a treatment threshold has been crossed and pharmacological therapy is indicated.”
The most important message from this study for clinicians and healthcare policymakers is not the relative value of the repeat BMD testing, Dr. Lewiecki stated. Rather, it is the call to action regarding the underuse of BMD testing. “There is a global crisis in the care of osteoporosis that is characterized by underdiagnosis and undertreatment of patients at risk for fracture. Many patients who could benefit from treatment to reduce fracture risk are not receiving it, resulting in disability and deaths from fractures that might have been prevented. We need more bone density testing in appropriately selected patients to identify high-risk patients and intervene to reduce fracture risk,” he said. “DXA is an inexpensive and highly versatile clinical tool with many applications in clinical practice. When used wisely, it can be extraordinarily useful to identify and monitor high-risk patients, with the goal of reducing the burden of osteoporotic fractures.”
The barriers to performing baseline BMD measurement in this population are poorly understood and not well researched, Dr. Crandall said in an interview. “I expect that they relate to the multiple competing demands on primary care physicians, who are, for example, trying to juggle hypertension, a sprained ankle, diabetes, and complex social situations simultaneously with identifying appropriate candidates for osteoporosis screening and considering numerous other screening guidelines.”
The Women’s Health Initiative is funded by the National Heart, Lung, and Blood Institute; National Institutes of Health; and the Department of Health & Human Services. The study authors reported relationships with multiple companies, including Amgen, Pfizer, Bayer, Mithra, Norton Rose Fulbright, TherapeuticsMD, AbbVie, Radius, and Allergan. Dr. Camacho reported relationships with Amgen and Shire. Dr. Lewiecki reported relationships with Amgen, Radius Health, Alexion, Samsung Bioepis, Sandoz, Mereo, and Bindex.
A version of this article originally appeared on Medscape.com.
Biologics may delay psoriatic arthritis, study finds
(DMARDs), in a single center retrospective analysis in Argentina that followed patients for almost 2 decades.
About 30%-40% of patients with psoriasis go on to develop psoriatic arthritis (PsA), usually on average about 10 years after the onset of psoriasis. One potential mechanism of PsA onset is through enthesitis, which has been described at subclinical levels in psoriasis.
“It could be speculated that treatment with biologics in patients with psoriasis could prevent the development of psoriatic arthritis, perhaps by inhibiting the subclinical development of enthesitis,” Luciano Lo Giudice, MD, a rheumatology fellow at Hospital Italiano de Buenos Aires, said during his presentation at the virtual annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
Although these results do not prove that treatment of the underlying disease delays progression to PsA, it is suggestive, and highlights an emerging field of research, according to Diamant Thaçi, MD, PhD, professor of medicine at University Hospital Schleswig-Holstein, Germany, who led a live discussion following a prerecorded presentation of the results. “We’re going in this direction – how can we prevent psoriatic arthritis, how can we delay it. We are just starting to think about this,” Dr. Thaçi said in an interview.
The researchers examined medical records of 1,626 patients with psoriasis treated at their center between 2000 and 2019, with a total of 15,152 years of follow-up. Of these patients, 1,293 were treated with topical medication, 229 with conventional DMARDs (methotrexate in 77%, cyclosporine in 13%, and both in 10%), and 104 with biologics, including etanercept (34%), secukinumab (20%), adalimumab (20%), ustekinumab (12%), ixekizumab (9%), and infliximab (5%).
They found that 11% in the topical treatment group developed PsA, as did 3.5% in the conventional DMARD group, 1.9% in the biologics group, and 9.1% overall. Treatment with biologics was associated with a significantly lower odds of developing PsA compared with treatment with conventional DMARDs (3 versus 17.2 per 1,000 patient-years; incidence rate ratio [IRR], 0.17; P = .0177). There was a trend toward reduced odds of developing PsA among those on biologic therapy compared with those on topicals (3 versus 9.8 per 1,000 patient-years; IRR, 0.3; P = .0588).
The researchers confirmed all medical encounters using electronic medical records and the study had a long follow-up time, but was limited by the single center and its retrospective nature. It also could not associate reduced risk with specific biologics.
The findings probably reflect the presence of subclinical PsA that many clinicians don’t see, according to Dr. Thaçi. While a dermatology practice might find PsA in 2% or 3%, or at most, 10% of patients with psoriasis, “in our department it’s about 50 to 60 percent of patients who have psoriatic arthritis, because we diagnose it early,” he said.
He found the results of the study encouraging. “It looks like some of the biologics, for example IL [interleukin]-17 or even IL-23 [blockers] may have an influence on occurrence or delay the occurrence of psoriatic arthritis.”
Dr. Thaçi noted that early treatment of skin lesions can increase the probability of longer remissions, especially with IL-23 blockers. Still, that’s no guarantee the same would hold true for PsA risk. “Skin is skin and joints are joints,” Dr. Thaçi said.
Dr. Thaçi and Dr. Lo Giudice had no relevant financial disclosures.
(DMARDs), in a single center retrospective analysis in Argentina that followed patients for almost 2 decades.
About 30%-40% of patients with psoriasis go on to develop psoriatic arthritis (PsA), usually on average about 10 years after the onset of psoriasis. One potential mechanism of PsA onset is through enthesitis, which has been described at subclinical levels in psoriasis.
“It could be speculated that treatment with biologics in patients with psoriasis could prevent the development of psoriatic arthritis, perhaps by inhibiting the subclinical development of enthesitis,” Luciano Lo Giudice, MD, a rheumatology fellow at Hospital Italiano de Buenos Aires, said during his presentation at the virtual annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
Although these results do not prove that treatment of the underlying disease delays progression to PsA, it is suggestive, and highlights an emerging field of research, according to Diamant Thaçi, MD, PhD, professor of medicine at University Hospital Schleswig-Holstein, Germany, who led a live discussion following a prerecorded presentation of the results. “We’re going in this direction – how can we prevent psoriatic arthritis, how can we delay it. We are just starting to think about this,” Dr. Thaçi said in an interview.
The researchers examined medical records of 1,626 patients with psoriasis treated at their center between 2000 and 2019, with a total of 15,152 years of follow-up. Of these patients, 1,293 were treated with topical medication, 229 with conventional DMARDs (methotrexate in 77%, cyclosporine in 13%, and both in 10%), and 104 with biologics, including etanercept (34%), secukinumab (20%), adalimumab (20%), ustekinumab (12%), ixekizumab (9%), and infliximab (5%).
They found that 11% in the topical treatment group developed PsA, as did 3.5% in the conventional DMARD group, 1.9% in the biologics group, and 9.1% overall. Treatment with biologics was associated with a significantly lower odds of developing PsA compared with treatment with conventional DMARDs (3 versus 17.2 per 1,000 patient-years; incidence rate ratio [IRR], 0.17; P = .0177). There was a trend toward reduced odds of developing PsA among those on biologic therapy compared with those on topicals (3 versus 9.8 per 1,000 patient-years; IRR, 0.3; P = .0588).
The researchers confirmed all medical encounters using electronic medical records and the study had a long follow-up time, but was limited by the single center and its retrospective nature. It also could not associate reduced risk with specific biologics.
The findings probably reflect the presence of subclinical PsA that many clinicians don’t see, according to Dr. Thaçi. While a dermatology practice might find PsA in 2% or 3%, or at most, 10% of patients with psoriasis, “in our department it’s about 50 to 60 percent of patients who have psoriatic arthritis, because we diagnose it early,” he said.
He found the results of the study encouraging. “It looks like some of the biologics, for example IL [interleukin]-17 or even IL-23 [blockers] may have an influence on occurrence or delay the occurrence of psoriatic arthritis.”
Dr. Thaçi noted that early treatment of skin lesions can increase the probability of longer remissions, especially with IL-23 blockers. Still, that’s no guarantee the same would hold true for PsA risk. “Skin is skin and joints are joints,” Dr. Thaçi said.
Dr. Thaçi and Dr. Lo Giudice had no relevant financial disclosures.
(DMARDs), in a single center retrospective analysis in Argentina that followed patients for almost 2 decades.
About 30%-40% of patients with psoriasis go on to develop psoriatic arthritis (PsA), usually on average about 10 years after the onset of psoriasis. One potential mechanism of PsA onset is through enthesitis, which has been described at subclinical levels in psoriasis.
“It could be speculated that treatment with biologics in patients with psoriasis could prevent the development of psoriatic arthritis, perhaps by inhibiting the subclinical development of enthesitis,” Luciano Lo Giudice, MD, a rheumatology fellow at Hospital Italiano de Buenos Aires, said during his presentation at the virtual annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis.
Although these results do not prove that treatment of the underlying disease delays progression to PsA, it is suggestive, and highlights an emerging field of research, according to Diamant Thaçi, MD, PhD, professor of medicine at University Hospital Schleswig-Holstein, Germany, who led a live discussion following a prerecorded presentation of the results. “We’re going in this direction – how can we prevent psoriatic arthritis, how can we delay it. We are just starting to think about this,” Dr. Thaçi said in an interview.
The researchers examined medical records of 1,626 patients with psoriasis treated at their center between 2000 and 2019, with a total of 15,152 years of follow-up. Of these patients, 1,293 were treated with topical medication, 229 with conventional DMARDs (methotrexate in 77%, cyclosporine in 13%, and both in 10%), and 104 with biologics, including etanercept (34%), secukinumab (20%), adalimumab (20%), ustekinumab (12%), ixekizumab (9%), and infliximab (5%).
They found that 11% in the topical treatment group developed PsA, as did 3.5% in the conventional DMARD group, 1.9% in the biologics group, and 9.1% overall. Treatment with biologics was associated with a significantly lower odds of developing PsA compared with treatment with conventional DMARDs (3 versus 17.2 per 1,000 patient-years; incidence rate ratio [IRR], 0.17; P = .0177). There was a trend toward reduced odds of developing PsA among those on biologic therapy compared with those on topicals (3 versus 9.8 per 1,000 patient-years; IRR, 0.3; P = .0588).
The researchers confirmed all medical encounters using electronic medical records and the study had a long follow-up time, but was limited by the single center and its retrospective nature. It also could not associate reduced risk with specific biologics.
The findings probably reflect the presence of subclinical PsA that many clinicians don’t see, according to Dr. Thaçi. While a dermatology practice might find PsA in 2% or 3%, or at most, 10% of patients with psoriasis, “in our department it’s about 50 to 60 percent of patients who have psoriatic arthritis, because we diagnose it early,” he said.
He found the results of the study encouraging. “It looks like some of the biologics, for example IL [interleukin]-17 or even IL-23 [blockers] may have an influence on occurrence or delay the occurrence of psoriatic arthritis.”
Dr. Thaçi noted that early treatment of skin lesions can increase the probability of longer remissions, especially with IL-23 blockers. Still, that’s no guarantee the same would hold true for PsA risk. “Skin is skin and joints are joints,” Dr. Thaçi said.
Dr. Thaçi and Dr. Lo Giudice had no relevant financial disclosures.
FROM GRAPPA 2020 VIRTUAL ANNUAL MEETING
Bisphosphonates may have limited ‘protective’ effect against knee OA progression
New data from the National Institutes of Health–funded Osteoarthritis Initiative suggest that, in some women at least, taking bisphosphonates may help to reduce the chances that there will be radiographic progression of knee osteoarthritis (OA).
In a propensity-matched cohort analysis, women who had a Kellgren and Lawrence (KL) grade of less than 2 and who used bisphosphonates were half as likely as those who did not use bisphosphonates to have radiographic OA progression at 2 years (hazard ratio, 0.53; 95% confidence interval, 0.35-0.79). Radiographic OA progression has been defined as a one-step increase in the KL grade.
While the association appeared even stronger in women with a KL grade less than 2 and who were not overweight (HR, 0.49; 95% CI, 0.26-0.92), bisphosphonate use was not associated with radiographic OA progression in women with a higher (≥2) KL grade (HR, 1.06; 95% CI, 0.83-1.35).
“In all analyses, the effect of bisphosphonates was larger in radiographic-disease-naive individuals, suggesting protection using bisphosphonates may be more profound in those who do not already have evidence of knee damage or who have mild disease, and once damage occurs, bisphosphonate use may not have much effect,” Kaleen N. Hayes, PharmD, of the University of Toronto and her coauthors reported in the Journal of Bone and Mineral Research.
“Our study was the first to our knowledge to examine bisphosphonate exposure effects in different disease severity subgroups and obesity classifications using a rigorous, propensity-matched time-to-event analysis that uniquely addresses confounding by indication,” Dr. Hayes and her team wrote.
Furthermore, they noted that extensive sensitivity analyses, which included redoing the primary analyses to look at statin use, showed that their main conclusions were unchanged and that this helped account for any potential residual confounding, healthy-user bias, or exposure misclassification.
Study details
The Osteoarthritis Initiative is a 10-year longitudinal cohort study conducted at four clinical sites in the United States and recruited men and women aged 45-75 years over a 2-year period starting in 2004. Dr. Hayes and her coauthors restricted their analyses to women 50 years and older. Their study population consisted of 344 bisphosphonate users and 344 bisphosphonate nonusers.
The main bisphosphonate being taken was alendronate (69%), and the average duration of bisphosphonate use was 3.3 years, but no significant effect of duration of use on radiographic progression was found.
The women were followed until the first radiographic OA progression, or the first missed visit or end of the 2-year follow-up period.
Overall, 95 (13.8%) of the 688 women included in the analysis experienced radiographic OA progression. Of those, 27 (3.9%) had a KL grade of less than 2 and 68 (9.8%) had a KL grade of 2 or greater. Ten women with KL less than 2 and 27 women with KL or 2 or greater were taking bisphosphonates at their baseline visit.
“Kaplan-Meier analysis indicated that non-users and users with a baseline KL grade of 0 or 1 had 2-year risks of progression of 10.5% and 5.9%, respectively, whereas non-users and users with a baseline KL grade of 2 or 3 had 2-year of these women risks of progression of 23.0% and 23.5%, respectively,” reported the authors.
Before propensity score matching, Dr. Hayes and her colleagues observed that women taking bisphosphonates were older, had lower body weight and a higher prevalence of any fracture or hip and vertebral fractures, and were also more likely be White, compared with non-users. “In addition, bisphosphonate-users appeared to be healthier than non-users, as suggested by a lower smoking prevalence, lower average baseline KL grade, lower diabetes prevalence, and higher multivitamin use (a healthy-user proxy),” they acknowledged.
Results in perspective
“The key thing that I’m concerned about when I see something like bisphosphonates and osteoarthritis is just how well confounding has been addressed,” commented Tuhina Neogi, MD, PhD, professor of medicine and epidemiology at Boston University and chief of rheumatology at Boston Medical Center, in an interview.
“So are there factors other than the bisphosphonates themselves that might explain the findings? It looks like they’ve taken into account a lot of important things that one would consider for trying to get the two groups to look as similar as possible,” she added. Dr. Neogi queried, however, if body mass index had been suitably been adjusted for even after propensity score matching.
“The effect estimate is quite large, so I do think there is some confounding. So I would feel comfortable saying that there’s a signal here for bisphosphonates in reducing the risk of progression among those who do not have radiographic OA at baseline,” Dr. Neogi observed.
“The context of all this is that there have been large, well-designed, randomized control trials of oral bisphosphonates from years ago that did not find any benefit of bisphosphonates in [terms of] radiographic OA progression,” Dr. Neogi explained.
In the Knee OA Structural Arthritis (KOSTAR) study, now considered “quite a large landmark study,” the efficacy of risedronate in providing symptom relief and slowing disease progression was studied in almost 2,500 patients. “They saw some improvements in signs and symptoms, but risedronate did not significantly reduce radiographic progression. [However] there were some signals on biomarkers,” Dr. Neogi said.
One of the issues is that radiographs are too insensitive to pick up early bone changes in OA, a fact not missed by Dr. Hayes et al. More recent research has thus looked to using more sensitive imaging methods, such as CT and MRI, such as a recent study published in JAMA looking at the use of intravenous zoledronic acid on bone marrow lesions and cartilage volume. The results did not show any benefit of bisphosphonate use over 2 years.
“So even though we thought the MRI might provide a better way to detect a signal, it hasn’t panned out,” Dr. Neogi said.
But that’s not to say that there isn’t still a signal. Dr. Neogi’s most recent research has been using MRI to look at bone marrow lesion volume in women who were newly starting bisphosphonate therapy versus those who were not, and this has been just been accepted for publication.
“We found no difference in bone marrow lesion volume between the two groups. But in the women who had bone marrow lesions at baseline, there was a statistically significant greater proportion of women on bisphosphonates having a decrease in bone marrow lesion volume than the non-initiators,” she said.
So is there evidence that putting more women on bisphosphonates could prevent OA? “I’m not sure that you would be able to say that this should be something that all postmenopausal women should be on,” Dr. Neogi said.
“There’s a theoretical risk that has not been formally studied that, if you diminish bone turnover and you get more and more mineralization occurring, the bone potentially may have altered mechanical properties, become stiffer and, over the long term, that might not be good for OA.”
She added that, if there is already a clear clinical indication for bisphosphonate use, however, such as older women who have had a fracture and who should be on a bisphosphonate anyway, then “a bisphosphonate has the theoretical potential additional benefit for their osteoarthritis.”
The authors and Dr. Neogi had no conflicts of interest or relationships to disclose.
SOURCE: Hayes KN et al. J Bone Miner Res. 2020 July 14. doi: 10.1002/jbmr.4133.
New data from the National Institutes of Health–funded Osteoarthritis Initiative suggest that, in some women at least, taking bisphosphonates may help to reduce the chances that there will be radiographic progression of knee osteoarthritis (OA).
In a propensity-matched cohort analysis, women who had a Kellgren and Lawrence (KL) grade of less than 2 and who used bisphosphonates were half as likely as those who did not use bisphosphonates to have radiographic OA progression at 2 years (hazard ratio, 0.53; 95% confidence interval, 0.35-0.79). Radiographic OA progression has been defined as a one-step increase in the KL grade.
While the association appeared even stronger in women with a KL grade less than 2 and who were not overweight (HR, 0.49; 95% CI, 0.26-0.92), bisphosphonate use was not associated with radiographic OA progression in women with a higher (≥2) KL grade (HR, 1.06; 95% CI, 0.83-1.35).
“In all analyses, the effect of bisphosphonates was larger in radiographic-disease-naive individuals, suggesting protection using bisphosphonates may be more profound in those who do not already have evidence of knee damage or who have mild disease, and once damage occurs, bisphosphonate use may not have much effect,” Kaleen N. Hayes, PharmD, of the University of Toronto and her coauthors reported in the Journal of Bone and Mineral Research.
“Our study was the first to our knowledge to examine bisphosphonate exposure effects in different disease severity subgroups and obesity classifications using a rigorous, propensity-matched time-to-event analysis that uniquely addresses confounding by indication,” Dr. Hayes and her team wrote.
Furthermore, they noted that extensive sensitivity analyses, which included redoing the primary analyses to look at statin use, showed that their main conclusions were unchanged and that this helped account for any potential residual confounding, healthy-user bias, or exposure misclassification.
Study details
The Osteoarthritis Initiative is a 10-year longitudinal cohort study conducted at four clinical sites in the United States and recruited men and women aged 45-75 years over a 2-year period starting in 2004. Dr. Hayes and her coauthors restricted their analyses to women 50 years and older. Their study population consisted of 344 bisphosphonate users and 344 bisphosphonate nonusers.
The main bisphosphonate being taken was alendronate (69%), and the average duration of bisphosphonate use was 3.3 years, but no significant effect of duration of use on radiographic progression was found.
The women were followed until the first radiographic OA progression, or the first missed visit or end of the 2-year follow-up period.
Overall, 95 (13.8%) of the 688 women included in the analysis experienced radiographic OA progression. Of those, 27 (3.9%) had a KL grade of less than 2 and 68 (9.8%) had a KL grade of 2 or greater. Ten women with KL less than 2 and 27 women with KL or 2 or greater were taking bisphosphonates at their baseline visit.
“Kaplan-Meier analysis indicated that non-users and users with a baseline KL grade of 0 or 1 had 2-year risks of progression of 10.5% and 5.9%, respectively, whereas non-users and users with a baseline KL grade of 2 or 3 had 2-year of these women risks of progression of 23.0% and 23.5%, respectively,” reported the authors.
Before propensity score matching, Dr. Hayes and her colleagues observed that women taking bisphosphonates were older, had lower body weight and a higher prevalence of any fracture or hip and vertebral fractures, and were also more likely be White, compared with non-users. “In addition, bisphosphonate-users appeared to be healthier than non-users, as suggested by a lower smoking prevalence, lower average baseline KL grade, lower diabetes prevalence, and higher multivitamin use (a healthy-user proxy),” they acknowledged.
Results in perspective
“The key thing that I’m concerned about when I see something like bisphosphonates and osteoarthritis is just how well confounding has been addressed,” commented Tuhina Neogi, MD, PhD, professor of medicine and epidemiology at Boston University and chief of rheumatology at Boston Medical Center, in an interview.
“So are there factors other than the bisphosphonates themselves that might explain the findings? It looks like they’ve taken into account a lot of important things that one would consider for trying to get the two groups to look as similar as possible,” she added. Dr. Neogi queried, however, if body mass index had been suitably been adjusted for even after propensity score matching.
“The effect estimate is quite large, so I do think there is some confounding. So I would feel comfortable saying that there’s a signal here for bisphosphonates in reducing the risk of progression among those who do not have radiographic OA at baseline,” Dr. Neogi observed.
“The context of all this is that there have been large, well-designed, randomized control trials of oral bisphosphonates from years ago that did not find any benefit of bisphosphonates in [terms of] radiographic OA progression,” Dr. Neogi explained.
In the Knee OA Structural Arthritis (KOSTAR) study, now considered “quite a large landmark study,” the efficacy of risedronate in providing symptom relief and slowing disease progression was studied in almost 2,500 patients. “They saw some improvements in signs and symptoms, but risedronate did not significantly reduce radiographic progression. [However] there were some signals on biomarkers,” Dr. Neogi said.
One of the issues is that radiographs are too insensitive to pick up early bone changes in OA, a fact not missed by Dr. Hayes et al. More recent research has thus looked to using more sensitive imaging methods, such as CT and MRI, such as a recent study published in JAMA looking at the use of intravenous zoledronic acid on bone marrow lesions and cartilage volume. The results did not show any benefit of bisphosphonate use over 2 years.
“So even though we thought the MRI might provide a better way to detect a signal, it hasn’t panned out,” Dr. Neogi said.
But that’s not to say that there isn’t still a signal. Dr. Neogi’s most recent research has been using MRI to look at bone marrow lesion volume in women who were newly starting bisphosphonate therapy versus those who were not, and this has been just been accepted for publication.
“We found no difference in bone marrow lesion volume between the two groups. But in the women who had bone marrow lesions at baseline, there was a statistically significant greater proportion of women on bisphosphonates having a decrease in bone marrow lesion volume than the non-initiators,” she said.
So is there evidence that putting more women on bisphosphonates could prevent OA? “I’m not sure that you would be able to say that this should be something that all postmenopausal women should be on,” Dr. Neogi said.
“There’s a theoretical risk that has not been formally studied that, if you diminish bone turnover and you get more and more mineralization occurring, the bone potentially may have altered mechanical properties, become stiffer and, over the long term, that might not be good for OA.”
She added that, if there is already a clear clinical indication for bisphosphonate use, however, such as older women who have had a fracture and who should be on a bisphosphonate anyway, then “a bisphosphonate has the theoretical potential additional benefit for their osteoarthritis.”
The authors and Dr. Neogi had no conflicts of interest or relationships to disclose.
SOURCE: Hayes KN et al. J Bone Miner Res. 2020 July 14. doi: 10.1002/jbmr.4133.
New data from the National Institutes of Health–funded Osteoarthritis Initiative suggest that, in some women at least, taking bisphosphonates may help to reduce the chances that there will be radiographic progression of knee osteoarthritis (OA).
In a propensity-matched cohort analysis, women who had a Kellgren and Lawrence (KL) grade of less than 2 and who used bisphosphonates were half as likely as those who did not use bisphosphonates to have radiographic OA progression at 2 years (hazard ratio, 0.53; 95% confidence interval, 0.35-0.79). Radiographic OA progression has been defined as a one-step increase in the KL grade.
While the association appeared even stronger in women with a KL grade less than 2 and who were not overweight (HR, 0.49; 95% CI, 0.26-0.92), bisphosphonate use was not associated with radiographic OA progression in women with a higher (≥2) KL grade (HR, 1.06; 95% CI, 0.83-1.35).
“In all analyses, the effect of bisphosphonates was larger in radiographic-disease-naive individuals, suggesting protection using bisphosphonates may be more profound in those who do not already have evidence of knee damage or who have mild disease, and once damage occurs, bisphosphonate use may not have much effect,” Kaleen N. Hayes, PharmD, of the University of Toronto and her coauthors reported in the Journal of Bone and Mineral Research.
“Our study was the first to our knowledge to examine bisphosphonate exposure effects in different disease severity subgroups and obesity classifications using a rigorous, propensity-matched time-to-event analysis that uniquely addresses confounding by indication,” Dr. Hayes and her team wrote.
Furthermore, they noted that extensive sensitivity analyses, which included redoing the primary analyses to look at statin use, showed that their main conclusions were unchanged and that this helped account for any potential residual confounding, healthy-user bias, or exposure misclassification.
Study details
The Osteoarthritis Initiative is a 10-year longitudinal cohort study conducted at four clinical sites in the United States and recruited men and women aged 45-75 years over a 2-year period starting in 2004. Dr. Hayes and her coauthors restricted their analyses to women 50 years and older. Their study population consisted of 344 bisphosphonate users and 344 bisphosphonate nonusers.
The main bisphosphonate being taken was alendronate (69%), and the average duration of bisphosphonate use was 3.3 years, but no significant effect of duration of use on radiographic progression was found.
The women were followed until the first radiographic OA progression, or the first missed visit or end of the 2-year follow-up period.
Overall, 95 (13.8%) of the 688 women included in the analysis experienced radiographic OA progression. Of those, 27 (3.9%) had a KL grade of less than 2 and 68 (9.8%) had a KL grade of 2 or greater. Ten women with KL less than 2 and 27 women with KL or 2 or greater were taking bisphosphonates at their baseline visit.
“Kaplan-Meier analysis indicated that non-users and users with a baseline KL grade of 0 or 1 had 2-year risks of progression of 10.5% and 5.9%, respectively, whereas non-users and users with a baseline KL grade of 2 or 3 had 2-year of these women risks of progression of 23.0% and 23.5%, respectively,” reported the authors.
Before propensity score matching, Dr. Hayes and her colleagues observed that women taking bisphosphonates were older, had lower body weight and a higher prevalence of any fracture or hip and vertebral fractures, and were also more likely be White, compared with non-users. “In addition, bisphosphonate-users appeared to be healthier than non-users, as suggested by a lower smoking prevalence, lower average baseline KL grade, lower diabetes prevalence, and higher multivitamin use (a healthy-user proxy),” they acknowledged.
Results in perspective
“The key thing that I’m concerned about when I see something like bisphosphonates and osteoarthritis is just how well confounding has been addressed,” commented Tuhina Neogi, MD, PhD, professor of medicine and epidemiology at Boston University and chief of rheumatology at Boston Medical Center, in an interview.
“So are there factors other than the bisphosphonates themselves that might explain the findings? It looks like they’ve taken into account a lot of important things that one would consider for trying to get the two groups to look as similar as possible,” she added. Dr. Neogi queried, however, if body mass index had been suitably been adjusted for even after propensity score matching.
“The effect estimate is quite large, so I do think there is some confounding. So I would feel comfortable saying that there’s a signal here for bisphosphonates in reducing the risk of progression among those who do not have radiographic OA at baseline,” Dr. Neogi observed.
“The context of all this is that there have been large, well-designed, randomized control trials of oral bisphosphonates from years ago that did not find any benefit of bisphosphonates in [terms of] radiographic OA progression,” Dr. Neogi explained.
In the Knee OA Structural Arthritis (KOSTAR) study, now considered “quite a large landmark study,” the efficacy of risedronate in providing symptom relief and slowing disease progression was studied in almost 2,500 patients. “They saw some improvements in signs and symptoms, but risedronate did not significantly reduce radiographic progression. [However] there were some signals on biomarkers,” Dr. Neogi said.
One of the issues is that radiographs are too insensitive to pick up early bone changes in OA, a fact not missed by Dr. Hayes et al. More recent research has thus looked to using more sensitive imaging methods, such as CT and MRI, such as a recent study published in JAMA looking at the use of intravenous zoledronic acid on bone marrow lesions and cartilage volume. The results did not show any benefit of bisphosphonate use over 2 years.
“So even though we thought the MRI might provide a better way to detect a signal, it hasn’t panned out,” Dr. Neogi said.
But that’s not to say that there isn’t still a signal. Dr. Neogi’s most recent research has been using MRI to look at bone marrow lesion volume in women who were newly starting bisphosphonate therapy versus those who were not, and this has been just been accepted for publication.
“We found no difference in bone marrow lesion volume between the two groups. But in the women who had bone marrow lesions at baseline, there was a statistically significant greater proportion of women on bisphosphonates having a decrease in bone marrow lesion volume than the non-initiators,” she said.
So is there evidence that putting more women on bisphosphonates could prevent OA? “I’m not sure that you would be able to say that this should be something that all postmenopausal women should be on,” Dr. Neogi said.
“There’s a theoretical risk that has not been formally studied that, if you diminish bone turnover and you get more and more mineralization occurring, the bone potentially may have altered mechanical properties, become stiffer and, over the long term, that might not be good for OA.”
She added that, if there is already a clear clinical indication for bisphosphonate use, however, such as older women who have had a fracture and who should be on a bisphosphonate anyway, then “a bisphosphonate has the theoretical potential additional benefit for their osteoarthritis.”
The authors and Dr. Neogi had no conflicts of interest or relationships to disclose.
SOURCE: Hayes KN et al. J Bone Miner Res. 2020 July 14. doi: 10.1002/jbmr.4133.
FROM THE JOURNAL OF BONE AND MINERAL RESEARCH
Abaloparatide shows no effect on cardiovascular risk in postmenopausal women
Osteoporosis treatment with abaloparatide in postmenopausal women does not lead to increased cardiovascular risk, according to a post hoc analysis of the pivotal ACTIVE and ACTIVExtend trials.
“Neither treatment with abaloparatide or teriparatide was associated with an increase in serious cardiac [adverse events],” wrote Felicia Cosman, MD, of Columbia University, New York, and coauthors. The study was published in the Journal of Clinical Endocrinology.
To assess the cardiovascular safety profile of abaloparatide, a synthetic analogue of parathyroid hormone–related peptide, the researchers analyzed data on heart rate, blood pressure and cardiovascular-related adverse events (AEs) from patients taking part in the Abaloparatide Comparator Trial in Vertebral Endpoints (ACTIVE) trial and its ACTIVExtend extension study.
The 2,460 participants in the ACTIVE trial were postmenopausal women between the ages of 49 and 86 years with osteoporosis; they were given 80 mcg of daily subcutaneous abaloparatide, 20 mcg of open-label daily subcutaneous teriparatide, or placebo in roughly equal numbers for 18 months. After a 1-month treatment-free period, 1,133 eligible participants from either the abaloparatide or placebo groups were enrolled in ACTIVExtend and given 70 mg of open-label alendronate once a week for 24 months. Because heart rate was only assessed pre- and post dose in the ACTIVE trial, an additional pharmacology study of abaloparatide involving 55 healthy volunteers (32 men and 23 women) was undertaken. After a dose of either abaloparatide or placebo, heart rate was measured at 15, 30, and 45 minutes and 1, 1.5, 2, 2.5, 4, 6, 8, and 12 hours.
Overall, treatment-emergent AEs were higher in the abaloparatide (165, 20.1%) and teriparatide (106, 13%) groups, compared with placebo (74, 9%), as were AEs that led to discontinuation of the study and were potentially associated with changes in heart rate or BP (27 in abaloparatide, 11 in teriparatide, and 5 in placebo). However, the percentage of patients with serious cardiac AEs was similar across groups (1%, 1%, and 0.9%, respectively).
During the ACTIVE trial, major cardiac adverse events plus heart failure were more common in the placebo group (1.7%) than the abaloparatide (0.5%) or teriparatide (0.6%) groups. During ACTIVExtend, major cardiac adverse plus heart failure were similarly common in the abaloparatide/alendronate (1.6%) and the placebo/alendronate (1.6%) groups.
On day 1 of treatment during ACTIVE, the mean change in heart rate from pretreatment to an hour post treatment was 7.9 bpm, 5.3 bpm, and 1.2 bpm for abaloparatide, teriparatide, and placebo, respectively (P < .0001 for abaloparatide and teriparatide vs. placebo; P < .05 for abaloparatide vs. teriparatide).
Subsequent visits saw similar changes. The mean maximum heart rate at 1 hour post dose was 80.7 bpm for abaloparatide, 79.0 bpm for teriparatide, and 73.7 bpm for placebo (P < .0001 for abaloparatide and teriparatide vs. placebo; P < .01 for abaloparatide vs. teriparatide). In the study of healthy volunteers, HR peaked at 15 minutes after dosing and then declined, resolving within 2.5-4 hours.
From predose to 1 hour post dose, small but significant decreases were observed in mean supine systolic and diastolic BP across groups (–2.7/–3.6 mm Hg with abaloparatide, –2.0/–3.6 with teriparatide, –1.5/–2.3 with placebo). During the first year of ACTIVE, the mean maximal decrease in BP from predose to 1 hour post dose was slightly higher (1-2 mm Hg) in the abaloparatide and teriparatide groups, compared with the placebo group (P < .05).
The authors acknowledged their study’s limitations, including the analysis of major cardiac adverse plus heart failure in ACTIVE being limited because of a low number of events and the trial not being designed in that regard.
Abaloparatide was approved by the Food and Drug Administration in 2017 on the basis of results from the ACTIVE and ACTIVExtend trials showing significant reductions in new vertebral and nonvertebral fractures, compared with placebo.
The analysis was partially funded by Radius Health. Its authors acknowledged numerous potential conflicts of interest, including receiving grants and research support from various organizations and pharmaceutical companies.
SOURCE: Cosman F et al. J Clin Endocrinol Metab. 2020 Jul 13. doi: 10.1210/clinem/dgaa450.
Osteoporosis treatment with abaloparatide in postmenopausal women does not lead to increased cardiovascular risk, according to a post hoc analysis of the pivotal ACTIVE and ACTIVExtend trials.
“Neither treatment with abaloparatide or teriparatide was associated with an increase in serious cardiac [adverse events],” wrote Felicia Cosman, MD, of Columbia University, New York, and coauthors. The study was published in the Journal of Clinical Endocrinology.
To assess the cardiovascular safety profile of abaloparatide, a synthetic analogue of parathyroid hormone–related peptide, the researchers analyzed data on heart rate, blood pressure and cardiovascular-related adverse events (AEs) from patients taking part in the Abaloparatide Comparator Trial in Vertebral Endpoints (ACTIVE) trial and its ACTIVExtend extension study.
The 2,460 participants in the ACTIVE trial were postmenopausal women between the ages of 49 and 86 years with osteoporosis; they were given 80 mcg of daily subcutaneous abaloparatide, 20 mcg of open-label daily subcutaneous teriparatide, or placebo in roughly equal numbers for 18 months. After a 1-month treatment-free period, 1,133 eligible participants from either the abaloparatide or placebo groups were enrolled in ACTIVExtend and given 70 mg of open-label alendronate once a week for 24 months. Because heart rate was only assessed pre- and post dose in the ACTIVE trial, an additional pharmacology study of abaloparatide involving 55 healthy volunteers (32 men and 23 women) was undertaken. After a dose of either abaloparatide or placebo, heart rate was measured at 15, 30, and 45 minutes and 1, 1.5, 2, 2.5, 4, 6, 8, and 12 hours.
Overall, treatment-emergent AEs were higher in the abaloparatide (165, 20.1%) and teriparatide (106, 13%) groups, compared with placebo (74, 9%), as were AEs that led to discontinuation of the study and were potentially associated with changes in heart rate or BP (27 in abaloparatide, 11 in teriparatide, and 5 in placebo). However, the percentage of patients with serious cardiac AEs was similar across groups (1%, 1%, and 0.9%, respectively).
During the ACTIVE trial, major cardiac adverse events plus heart failure were more common in the placebo group (1.7%) than the abaloparatide (0.5%) or teriparatide (0.6%) groups. During ACTIVExtend, major cardiac adverse plus heart failure were similarly common in the abaloparatide/alendronate (1.6%) and the placebo/alendronate (1.6%) groups.
On day 1 of treatment during ACTIVE, the mean change in heart rate from pretreatment to an hour post treatment was 7.9 bpm, 5.3 bpm, and 1.2 bpm for abaloparatide, teriparatide, and placebo, respectively (P < .0001 for abaloparatide and teriparatide vs. placebo; P < .05 for abaloparatide vs. teriparatide).
Subsequent visits saw similar changes. The mean maximum heart rate at 1 hour post dose was 80.7 bpm for abaloparatide, 79.0 bpm for teriparatide, and 73.7 bpm for placebo (P < .0001 for abaloparatide and teriparatide vs. placebo; P < .01 for abaloparatide vs. teriparatide). In the study of healthy volunteers, HR peaked at 15 minutes after dosing and then declined, resolving within 2.5-4 hours.
From predose to 1 hour post dose, small but significant decreases were observed in mean supine systolic and diastolic BP across groups (–2.7/–3.6 mm Hg with abaloparatide, –2.0/–3.6 with teriparatide, –1.5/–2.3 with placebo). During the first year of ACTIVE, the mean maximal decrease in BP from predose to 1 hour post dose was slightly higher (1-2 mm Hg) in the abaloparatide and teriparatide groups, compared with the placebo group (P < .05).
The authors acknowledged their study’s limitations, including the analysis of major cardiac adverse plus heart failure in ACTIVE being limited because of a low number of events and the trial not being designed in that regard.
Abaloparatide was approved by the Food and Drug Administration in 2017 on the basis of results from the ACTIVE and ACTIVExtend trials showing significant reductions in new vertebral and nonvertebral fractures, compared with placebo.
The analysis was partially funded by Radius Health. Its authors acknowledged numerous potential conflicts of interest, including receiving grants and research support from various organizations and pharmaceutical companies.
SOURCE: Cosman F et al. J Clin Endocrinol Metab. 2020 Jul 13. doi: 10.1210/clinem/dgaa450.
Osteoporosis treatment with abaloparatide in postmenopausal women does not lead to increased cardiovascular risk, according to a post hoc analysis of the pivotal ACTIVE and ACTIVExtend trials.
“Neither treatment with abaloparatide or teriparatide was associated with an increase in serious cardiac [adverse events],” wrote Felicia Cosman, MD, of Columbia University, New York, and coauthors. The study was published in the Journal of Clinical Endocrinology.
To assess the cardiovascular safety profile of abaloparatide, a synthetic analogue of parathyroid hormone–related peptide, the researchers analyzed data on heart rate, blood pressure and cardiovascular-related adverse events (AEs) from patients taking part in the Abaloparatide Comparator Trial in Vertebral Endpoints (ACTIVE) trial and its ACTIVExtend extension study.
The 2,460 participants in the ACTIVE trial were postmenopausal women between the ages of 49 and 86 years with osteoporosis; they were given 80 mcg of daily subcutaneous abaloparatide, 20 mcg of open-label daily subcutaneous teriparatide, or placebo in roughly equal numbers for 18 months. After a 1-month treatment-free period, 1,133 eligible participants from either the abaloparatide or placebo groups were enrolled in ACTIVExtend and given 70 mg of open-label alendronate once a week for 24 months. Because heart rate was only assessed pre- and post dose in the ACTIVE trial, an additional pharmacology study of abaloparatide involving 55 healthy volunteers (32 men and 23 women) was undertaken. After a dose of either abaloparatide or placebo, heart rate was measured at 15, 30, and 45 minutes and 1, 1.5, 2, 2.5, 4, 6, 8, and 12 hours.
Overall, treatment-emergent AEs were higher in the abaloparatide (165, 20.1%) and teriparatide (106, 13%) groups, compared with placebo (74, 9%), as were AEs that led to discontinuation of the study and were potentially associated with changes in heart rate or BP (27 in abaloparatide, 11 in teriparatide, and 5 in placebo). However, the percentage of patients with serious cardiac AEs was similar across groups (1%, 1%, and 0.9%, respectively).
During the ACTIVE trial, major cardiac adverse events plus heart failure were more common in the placebo group (1.7%) than the abaloparatide (0.5%) or teriparatide (0.6%) groups. During ACTIVExtend, major cardiac adverse plus heart failure were similarly common in the abaloparatide/alendronate (1.6%) and the placebo/alendronate (1.6%) groups.
On day 1 of treatment during ACTIVE, the mean change in heart rate from pretreatment to an hour post treatment was 7.9 bpm, 5.3 bpm, and 1.2 bpm for abaloparatide, teriparatide, and placebo, respectively (P < .0001 for abaloparatide and teriparatide vs. placebo; P < .05 for abaloparatide vs. teriparatide).
Subsequent visits saw similar changes. The mean maximum heart rate at 1 hour post dose was 80.7 bpm for abaloparatide, 79.0 bpm for teriparatide, and 73.7 bpm for placebo (P < .0001 for abaloparatide and teriparatide vs. placebo; P < .01 for abaloparatide vs. teriparatide). In the study of healthy volunteers, HR peaked at 15 minutes after dosing and then declined, resolving within 2.5-4 hours.
From predose to 1 hour post dose, small but significant decreases were observed in mean supine systolic and diastolic BP across groups (–2.7/–3.6 mm Hg with abaloparatide, –2.0/–3.6 with teriparatide, –1.5/–2.3 with placebo). During the first year of ACTIVE, the mean maximal decrease in BP from predose to 1 hour post dose was slightly higher (1-2 mm Hg) in the abaloparatide and teriparatide groups, compared with the placebo group (P < .05).
The authors acknowledged their study’s limitations, including the analysis of major cardiac adverse plus heart failure in ACTIVE being limited because of a low number of events and the trial not being designed in that regard.
Abaloparatide was approved by the Food and Drug Administration in 2017 on the basis of results from the ACTIVE and ACTIVExtend trials showing significant reductions in new vertebral and nonvertebral fractures, compared with placebo.
The analysis was partially funded by Radius Health. Its authors acknowledged numerous potential conflicts of interest, including receiving grants and research support from various organizations and pharmaceutical companies.
SOURCE: Cosman F et al. J Clin Endocrinol Metab. 2020 Jul 13. doi: 10.1210/clinem/dgaa450.
FROM THE JOURNAL OF CLINICAL ENDOCRINOLOGY & METABOLISM
Trio of antibodies may enable earlier diagnosis of axSpA
Three autoantibodies to newly discovered axial spondyloarthritis peptides may improve early diagnosis of the disease, according to a cross-sectional cohort study reported in Arthritis & Rheumatology.
The Assessment in SpondyloArthritis International Society (ASAS) classification criteria were not intended for diagnosis and do not differentiate well between patients with early axial spondyloarthritis (axSpA) and patients with nonspecific chronic low back pain, note the investigators, who conducted their research under senior investigator Veerle Somers, PhD, professor of molecular biology at Hasselt (Belgium) University and vice dean of the School of Life Sciences at Transnationale Universiteit Limburg, also in Hasselt.
“Therefore, for many patients, axSpA diagnosis may be challenging and is often delayed by several years after the occurrence of first clinical symptoms, posing a problem for early treatment initiation,” they wrote.
The investigators used plasma samples from patients with early disease and an axSpA complementary DNA phage display library developed with synovial tissue to screen for IgG antibodies that displayed significantly higher reactivity to plasma pools from the early axSpA patients than healthy controls.
They then assessed presence of the antibodies with enzyme-linked immunosorbent assays in a mixed cohort (76 patients with early axSpA having mean disease duration of 2.8 years, 75 control patients with nonspecific chronic low back pain, 60 patients with RA, and 94 healthy controls) and in an axSpA-only cohort (174 patients, 79 of whom had early disease with mean disease duration of 1.4 years).
Screening identified antibodies to nine novel peptides – eight peptides showing partial homology to human proteins and one novel axSpA autoantigen, double homeobox protein 4 (DUX4) – that were more commonly present in patients with early axSpA than in healthy controls, Dr. Somers and coinvestigators reported.
Subsequent analyses focused on the three antibodies having the highest positive likelihood ratios for differentiating axSpA from chronic low back pain.
Some 14.2% of the combined group of all patients with early axSpA had at least one antibody in this panel, compared with just 5.3% of the patients with chronic low back pain (P = .0484), corresponding to 95% specificity.
Prevalence did not differ significantly from that in patients with RA (10.0%; P = .5025) or healthy controls (8.4%; P = .2292).
The positive likelihood ratio for confirming early axSpA using the three antibodies was 2.7, on par with the historical ratio of 2.5 seen for C-reactive protein (CRP), the currently used laboratory marker, the investigators noted.
Among the patients with chronic low back pain, the posttest probability for axSpA increased from 79% with presence of inflammatory back pain and positive test results for HLA-B27 and CRP to 91% with addition of testing for the three antibodies.
The researchers proposed that, “in combination with other laboratory markers such as HLA-B27 and CRP, antibodies against our [three peptides] ... could provide a novel tool for the diagnosis of a subset of axSpA patients,” but the three-peptide panel needs to be studied more in larger cohorts of early axSpA patients and controls with low back pain.
Findings in context
“The authors did a number of steps laudably,” James T. Rosenbaum, MD, chair of the division of arthritis and rheumatic diseases and the Edward E. Rosenbaum Professor of Inflammation Research at Oregon Health & Science University, Portland, commented in an interview. Specifically, they used a variety of appropriate controls, had discovery and validation sets, achieved a fairly good sample size, and applied the phage library technique.
“Despite this technological tour de force and the need for a sensitive and specific blood test to diagnose nonradiographic axSpA, this study is preliminary,” he cautioned. “For example, the authors found antibodies to DUX4 in 8% of axSpA patients versus 3% of healthy controls, 4% of patients with chronic low back pain, and 7% with RA. It took a combination of antigens to enhance the diagnostic accuracy of the ASAS criteria to diagnose axSpA. For each antigen that was studied, more than 80% of the axSpA patients had no detectable antibodies.”
Importantly, rheumatic diseases are often immune mediated without being autoimmune, calling into question the role of the antibodies, according to Dr. Rosenbaum.
“Even if further studies validate these observations, additional research needs to be done to support the concept that these antibodies cause disease as opposed to being mere epiphenomena as is suggested by the low prevalence,” he concluded. “Current hypotheses as to the cause of ankylosing spondylitis now point to the microbiome and autoinflammatory rather than autoimmune pathways, but the jury is still out.”
Dr. Somers and three coauthors disclosed having a patent pending on the markers. The study was funded by a personal grant from the Agency for Innovation by Science and Technology Flanders. Dr. Rosenbaum disclosed that he consults for AbbVie, Gilead, Novartis, Pfizer, Roche, and UCB.
SOURCE: Quaden D et al. Arthritis Rheumatol. 2020 Jul 8. doi: 10.1002/art.41427.
Three autoantibodies to newly discovered axial spondyloarthritis peptides may improve early diagnosis of the disease, according to a cross-sectional cohort study reported in Arthritis & Rheumatology.
The Assessment in SpondyloArthritis International Society (ASAS) classification criteria were not intended for diagnosis and do not differentiate well between patients with early axial spondyloarthritis (axSpA) and patients with nonspecific chronic low back pain, note the investigators, who conducted their research under senior investigator Veerle Somers, PhD, professor of molecular biology at Hasselt (Belgium) University and vice dean of the School of Life Sciences at Transnationale Universiteit Limburg, also in Hasselt.
“Therefore, for many patients, axSpA diagnosis may be challenging and is often delayed by several years after the occurrence of first clinical symptoms, posing a problem for early treatment initiation,” they wrote.
The investigators used plasma samples from patients with early disease and an axSpA complementary DNA phage display library developed with synovial tissue to screen for IgG antibodies that displayed significantly higher reactivity to plasma pools from the early axSpA patients than healthy controls.
They then assessed presence of the antibodies with enzyme-linked immunosorbent assays in a mixed cohort (76 patients with early axSpA having mean disease duration of 2.8 years, 75 control patients with nonspecific chronic low back pain, 60 patients with RA, and 94 healthy controls) and in an axSpA-only cohort (174 patients, 79 of whom had early disease with mean disease duration of 1.4 years).
Screening identified antibodies to nine novel peptides – eight peptides showing partial homology to human proteins and one novel axSpA autoantigen, double homeobox protein 4 (DUX4) – that were more commonly present in patients with early axSpA than in healthy controls, Dr. Somers and coinvestigators reported.
Subsequent analyses focused on the three antibodies having the highest positive likelihood ratios for differentiating axSpA from chronic low back pain.
Some 14.2% of the combined group of all patients with early axSpA had at least one antibody in this panel, compared with just 5.3% of the patients with chronic low back pain (P = .0484), corresponding to 95% specificity.
Prevalence did not differ significantly from that in patients with RA (10.0%; P = .5025) or healthy controls (8.4%; P = .2292).
The positive likelihood ratio for confirming early axSpA using the three antibodies was 2.7, on par with the historical ratio of 2.5 seen for C-reactive protein (CRP), the currently used laboratory marker, the investigators noted.
Among the patients with chronic low back pain, the posttest probability for axSpA increased from 79% with presence of inflammatory back pain and positive test results for HLA-B27 and CRP to 91% with addition of testing for the three antibodies.
The researchers proposed that, “in combination with other laboratory markers such as HLA-B27 and CRP, antibodies against our [three peptides] ... could provide a novel tool for the diagnosis of a subset of axSpA patients,” but the three-peptide panel needs to be studied more in larger cohorts of early axSpA patients and controls with low back pain.
Findings in context
“The authors did a number of steps laudably,” James T. Rosenbaum, MD, chair of the division of arthritis and rheumatic diseases and the Edward E. Rosenbaum Professor of Inflammation Research at Oregon Health & Science University, Portland, commented in an interview. Specifically, they used a variety of appropriate controls, had discovery and validation sets, achieved a fairly good sample size, and applied the phage library technique.
“Despite this technological tour de force and the need for a sensitive and specific blood test to diagnose nonradiographic axSpA, this study is preliminary,” he cautioned. “For example, the authors found antibodies to DUX4 in 8% of axSpA patients versus 3% of healthy controls, 4% of patients with chronic low back pain, and 7% with RA. It took a combination of antigens to enhance the diagnostic accuracy of the ASAS criteria to diagnose axSpA. For each antigen that was studied, more than 80% of the axSpA patients had no detectable antibodies.”
Importantly, rheumatic diseases are often immune mediated without being autoimmune, calling into question the role of the antibodies, according to Dr. Rosenbaum.
“Even if further studies validate these observations, additional research needs to be done to support the concept that these antibodies cause disease as opposed to being mere epiphenomena as is suggested by the low prevalence,” he concluded. “Current hypotheses as to the cause of ankylosing spondylitis now point to the microbiome and autoinflammatory rather than autoimmune pathways, but the jury is still out.”
Dr. Somers and three coauthors disclosed having a patent pending on the markers. The study was funded by a personal grant from the Agency for Innovation by Science and Technology Flanders. Dr. Rosenbaum disclosed that he consults for AbbVie, Gilead, Novartis, Pfizer, Roche, and UCB.
SOURCE: Quaden D et al. Arthritis Rheumatol. 2020 Jul 8. doi: 10.1002/art.41427.
Three autoantibodies to newly discovered axial spondyloarthritis peptides may improve early diagnosis of the disease, according to a cross-sectional cohort study reported in Arthritis & Rheumatology.
The Assessment in SpondyloArthritis International Society (ASAS) classification criteria were not intended for diagnosis and do not differentiate well between patients with early axial spondyloarthritis (axSpA) and patients with nonspecific chronic low back pain, note the investigators, who conducted their research under senior investigator Veerle Somers, PhD, professor of molecular biology at Hasselt (Belgium) University and vice dean of the School of Life Sciences at Transnationale Universiteit Limburg, also in Hasselt.
“Therefore, for many patients, axSpA diagnosis may be challenging and is often delayed by several years after the occurrence of first clinical symptoms, posing a problem for early treatment initiation,” they wrote.
The investigators used plasma samples from patients with early disease and an axSpA complementary DNA phage display library developed with synovial tissue to screen for IgG antibodies that displayed significantly higher reactivity to plasma pools from the early axSpA patients than healthy controls.
They then assessed presence of the antibodies with enzyme-linked immunosorbent assays in a mixed cohort (76 patients with early axSpA having mean disease duration of 2.8 years, 75 control patients with nonspecific chronic low back pain, 60 patients with RA, and 94 healthy controls) and in an axSpA-only cohort (174 patients, 79 of whom had early disease with mean disease duration of 1.4 years).
Screening identified antibodies to nine novel peptides – eight peptides showing partial homology to human proteins and one novel axSpA autoantigen, double homeobox protein 4 (DUX4) – that were more commonly present in patients with early axSpA than in healthy controls, Dr. Somers and coinvestigators reported.
Subsequent analyses focused on the three antibodies having the highest positive likelihood ratios for differentiating axSpA from chronic low back pain.
Some 14.2% of the combined group of all patients with early axSpA had at least one antibody in this panel, compared with just 5.3% of the patients with chronic low back pain (P = .0484), corresponding to 95% specificity.
Prevalence did not differ significantly from that in patients with RA (10.0%; P = .5025) or healthy controls (8.4%; P = .2292).
The positive likelihood ratio for confirming early axSpA using the three antibodies was 2.7, on par with the historical ratio of 2.5 seen for C-reactive protein (CRP), the currently used laboratory marker, the investigators noted.
Among the patients with chronic low back pain, the posttest probability for axSpA increased from 79% with presence of inflammatory back pain and positive test results for HLA-B27 and CRP to 91% with addition of testing for the three antibodies.
The researchers proposed that, “in combination with other laboratory markers such as HLA-B27 and CRP, antibodies against our [three peptides] ... could provide a novel tool for the diagnosis of a subset of axSpA patients,” but the three-peptide panel needs to be studied more in larger cohorts of early axSpA patients and controls with low back pain.
Findings in context
“The authors did a number of steps laudably,” James T. Rosenbaum, MD, chair of the division of arthritis and rheumatic diseases and the Edward E. Rosenbaum Professor of Inflammation Research at Oregon Health & Science University, Portland, commented in an interview. Specifically, they used a variety of appropriate controls, had discovery and validation sets, achieved a fairly good sample size, and applied the phage library technique.
“Despite this technological tour de force and the need for a sensitive and specific blood test to diagnose nonradiographic axSpA, this study is preliminary,” he cautioned. “For example, the authors found antibodies to DUX4 in 8% of axSpA patients versus 3% of healthy controls, 4% of patients with chronic low back pain, and 7% with RA. It took a combination of antigens to enhance the diagnostic accuracy of the ASAS criteria to diagnose axSpA. For each antigen that was studied, more than 80% of the axSpA patients had no detectable antibodies.”
Importantly, rheumatic diseases are often immune mediated without being autoimmune, calling into question the role of the antibodies, according to Dr. Rosenbaum.
“Even if further studies validate these observations, additional research needs to be done to support the concept that these antibodies cause disease as opposed to being mere epiphenomena as is suggested by the low prevalence,” he concluded. “Current hypotheses as to the cause of ankylosing spondylitis now point to the microbiome and autoinflammatory rather than autoimmune pathways, but the jury is still out.”
Dr. Somers and three coauthors disclosed having a patent pending on the markers. The study was funded by a personal grant from the Agency for Innovation by Science and Technology Flanders. Dr. Rosenbaum disclosed that he consults for AbbVie, Gilead, Novartis, Pfizer, Roche, and UCB.
SOURCE: Quaden D et al. Arthritis Rheumatol. 2020 Jul 8. doi: 10.1002/art.41427.
FROM ARTHRITIS & RHEUMATOLOGY
Psoriatic disease inflammation linked to heart failure
Patients with psoriatic disease are known to be at increased risk of heart failure. A new cohort study suggests that part of the risk may be attributable to the disease itself, not just traditional cardiovascular risk factors like obesity and metabolic abnormalities that are common comorbidities in psoriatic disease. There may also be differences in the risk profiles of patients with ischemic and nonischemic heart failure.
Previous studies have shown that heart failure risk in patients with psoriatic arthritis is 32% higher than in the general population, and with psoriasis, it is 22%-53% higher. However, those studies were based on administrative databases with no clinical information to back up the accuracy of diagnoses, Sahil Koppikar, MD, from the University of Toronto, said during a presentation of the research at the virtual annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA).
The finding that psoriatic disease inflammation may be a direct risk factor for heart failure might be good news for patients. “By controlling inflammation, we may be able to reduce the risk of heart failure in these patients,” Dr. Koppikar said.
During a question and answer session, discussant Deepak Jadon, MBChB, PhD, director of the rheumatology research unit and lead for psoriatic arthritis at Addenbrooke’s Hospital, Cambridge (England), noted that patients with conditions like lupus and systemic sclerosis may undergo regular echocardiograms, chest CTs, or other surveillance, and asked if Dr. Koppikar could recommend a framework for similar surveillance in psoriatic arthritis.
“With the current data we have, I don’t know if we can make recommendations. What we learned from our study is that patients that have elevated inflammatory disease, with elevated inflammatory markers for a prolonged period of time, were at higher risk than [if they had elevated markers only] just before the event. So poorly controlled patients might be something you should be more aware of, and maybe get cardiology involved. But I don’t think it’s something we should be doing right now for all patients,” Dr. Koppikar said.
The researchers analyzed data from a psoriasis cohort at the University of Toronto that began in 2006. Every 6-12 months, they were assessed by a rheumatologist and underwent imaging assessment and laboratory tests. The primary outcome of the study was the first heart failure event, which the researchers identified by linking the cohort database with provincial hospitalization and mortality databases. They verified all events by examining medical records. They also assessed the association between heart failure and disease activity over time rather than just before the event.
The analysis included 1,994 patients. A total of 64 new heart failure events occurred during a mean follow-up of 11.3 years (2.85 per 1,000 person-years), including 38 ischemic and 26 nonischemic events. A multivariate analysis found that heart failure was associated with adjusted mean (AM) tender joint count (hazard ratio, 1.51; P = .02), AM swollen joint count (HR, 1.82; P = .04), AM erythrocyte sedimentation rate (HR, 1.26; P = .009), AM C-reactive protein (HR, 1.27; P = .001), Health Assessment Questionnaire (HR, 1.95; P = .001), and minimum disease activity state (HR, 0.40; P = .04). The multivariate analysis was adjusted for sex, hypertension, diabetes mellitus, body mass index, ischemic heart disease, lipids, and smoking status.
When the researchers separated the analysis into ischemic and nonischemic heart failure, some interesting associations popped out. Nonischemic heart failure was associated with AM tender joint count (HR, 1.83; P = .004), but ischemic heart failure was not. Other factors associated with nonischemic but not ischemic heart failure included AM swollen joint count (HR, 3.56; P = .0003), damaged joint count (HR, 1.29; P = .04), and pain score (HR, 1.22; P = .047). Minimum disease activity had the opposite result: It was associated with only ischemic heart failure (HR, 0.40; P = .04).
The study cohort more closely resembles a rheumatology cohort than a dermatology cohort, and it suggests that patients with psoriatic arthritis have different cardiovascular comorbidities than those with pure psoriasis, according to Diamant Thaçi, MD, PhD, professor and chairman of the department of dermatology at the University of Lübeck (Germany). “It shows how it important it is to look for comorbidity in the rheumatologic setting,” Dr. Thaçi said in an interview.
The study was supported by the Arthritis Society. Dr. Koppikar and Dr. Thaçi have no relevant financial disclosures.
SOURCE: Koppikar S et al. GRAPPA 2020 Virtual Annual Meeting.
Patients with psoriatic disease are known to be at increased risk of heart failure. A new cohort study suggests that part of the risk may be attributable to the disease itself, not just traditional cardiovascular risk factors like obesity and metabolic abnormalities that are common comorbidities in psoriatic disease. There may also be differences in the risk profiles of patients with ischemic and nonischemic heart failure.
Previous studies have shown that heart failure risk in patients with psoriatic arthritis is 32% higher than in the general population, and with psoriasis, it is 22%-53% higher. However, those studies were based on administrative databases with no clinical information to back up the accuracy of diagnoses, Sahil Koppikar, MD, from the University of Toronto, said during a presentation of the research at the virtual annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA).
The finding that psoriatic disease inflammation may be a direct risk factor for heart failure might be good news for patients. “By controlling inflammation, we may be able to reduce the risk of heart failure in these patients,” Dr. Koppikar said.
During a question and answer session, discussant Deepak Jadon, MBChB, PhD, director of the rheumatology research unit and lead for psoriatic arthritis at Addenbrooke’s Hospital, Cambridge (England), noted that patients with conditions like lupus and systemic sclerosis may undergo regular echocardiograms, chest CTs, or other surveillance, and asked if Dr. Koppikar could recommend a framework for similar surveillance in psoriatic arthritis.
“With the current data we have, I don’t know if we can make recommendations. What we learned from our study is that patients that have elevated inflammatory disease, with elevated inflammatory markers for a prolonged period of time, were at higher risk than [if they had elevated markers only] just before the event. So poorly controlled patients might be something you should be more aware of, and maybe get cardiology involved. But I don’t think it’s something we should be doing right now for all patients,” Dr. Koppikar said.
The researchers analyzed data from a psoriasis cohort at the University of Toronto that began in 2006. Every 6-12 months, they were assessed by a rheumatologist and underwent imaging assessment and laboratory tests. The primary outcome of the study was the first heart failure event, which the researchers identified by linking the cohort database with provincial hospitalization and mortality databases. They verified all events by examining medical records. They also assessed the association between heart failure and disease activity over time rather than just before the event.
The analysis included 1,994 patients. A total of 64 new heart failure events occurred during a mean follow-up of 11.3 years (2.85 per 1,000 person-years), including 38 ischemic and 26 nonischemic events. A multivariate analysis found that heart failure was associated with adjusted mean (AM) tender joint count (hazard ratio, 1.51; P = .02), AM swollen joint count (HR, 1.82; P = .04), AM erythrocyte sedimentation rate (HR, 1.26; P = .009), AM C-reactive protein (HR, 1.27; P = .001), Health Assessment Questionnaire (HR, 1.95; P = .001), and minimum disease activity state (HR, 0.40; P = .04). The multivariate analysis was adjusted for sex, hypertension, diabetes mellitus, body mass index, ischemic heart disease, lipids, and smoking status.
When the researchers separated the analysis into ischemic and nonischemic heart failure, some interesting associations popped out. Nonischemic heart failure was associated with AM tender joint count (HR, 1.83; P = .004), but ischemic heart failure was not. Other factors associated with nonischemic but not ischemic heart failure included AM swollen joint count (HR, 3.56; P = .0003), damaged joint count (HR, 1.29; P = .04), and pain score (HR, 1.22; P = .047). Minimum disease activity had the opposite result: It was associated with only ischemic heart failure (HR, 0.40; P = .04).
The study cohort more closely resembles a rheumatology cohort than a dermatology cohort, and it suggests that patients with psoriatic arthritis have different cardiovascular comorbidities than those with pure psoriasis, according to Diamant Thaçi, MD, PhD, professor and chairman of the department of dermatology at the University of Lübeck (Germany). “It shows how it important it is to look for comorbidity in the rheumatologic setting,” Dr. Thaçi said in an interview.
The study was supported by the Arthritis Society. Dr. Koppikar and Dr. Thaçi have no relevant financial disclosures.
SOURCE: Koppikar S et al. GRAPPA 2020 Virtual Annual Meeting.
Patients with psoriatic disease are known to be at increased risk of heart failure. A new cohort study suggests that part of the risk may be attributable to the disease itself, not just traditional cardiovascular risk factors like obesity and metabolic abnormalities that are common comorbidities in psoriatic disease. There may also be differences in the risk profiles of patients with ischemic and nonischemic heart failure.
Previous studies have shown that heart failure risk in patients with psoriatic arthritis is 32% higher than in the general population, and with psoriasis, it is 22%-53% higher. However, those studies were based on administrative databases with no clinical information to back up the accuracy of diagnoses, Sahil Koppikar, MD, from the University of Toronto, said during a presentation of the research at the virtual annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA).
The finding that psoriatic disease inflammation may be a direct risk factor for heart failure might be good news for patients. “By controlling inflammation, we may be able to reduce the risk of heart failure in these patients,” Dr. Koppikar said.
During a question and answer session, discussant Deepak Jadon, MBChB, PhD, director of the rheumatology research unit and lead for psoriatic arthritis at Addenbrooke’s Hospital, Cambridge (England), noted that patients with conditions like lupus and systemic sclerosis may undergo regular echocardiograms, chest CTs, or other surveillance, and asked if Dr. Koppikar could recommend a framework for similar surveillance in psoriatic arthritis.
“With the current data we have, I don’t know if we can make recommendations. What we learned from our study is that patients that have elevated inflammatory disease, with elevated inflammatory markers for a prolonged period of time, were at higher risk than [if they had elevated markers only] just before the event. So poorly controlled patients might be something you should be more aware of, and maybe get cardiology involved. But I don’t think it’s something we should be doing right now for all patients,” Dr. Koppikar said.
The researchers analyzed data from a psoriasis cohort at the University of Toronto that began in 2006. Every 6-12 months, they were assessed by a rheumatologist and underwent imaging assessment and laboratory tests. The primary outcome of the study was the first heart failure event, which the researchers identified by linking the cohort database with provincial hospitalization and mortality databases. They verified all events by examining medical records. They also assessed the association between heart failure and disease activity over time rather than just before the event.
The analysis included 1,994 patients. A total of 64 new heart failure events occurred during a mean follow-up of 11.3 years (2.85 per 1,000 person-years), including 38 ischemic and 26 nonischemic events. A multivariate analysis found that heart failure was associated with adjusted mean (AM) tender joint count (hazard ratio, 1.51; P = .02), AM swollen joint count (HR, 1.82; P = .04), AM erythrocyte sedimentation rate (HR, 1.26; P = .009), AM C-reactive protein (HR, 1.27; P = .001), Health Assessment Questionnaire (HR, 1.95; P = .001), and minimum disease activity state (HR, 0.40; P = .04). The multivariate analysis was adjusted for sex, hypertension, diabetes mellitus, body mass index, ischemic heart disease, lipids, and smoking status.
When the researchers separated the analysis into ischemic and nonischemic heart failure, some interesting associations popped out. Nonischemic heart failure was associated with AM tender joint count (HR, 1.83; P = .004), but ischemic heart failure was not. Other factors associated with nonischemic but not ischemic heart failure included AM swollen joint count (HR, 3.56; P = .0003), damaged joint count (HR, 1.29; P = .04), and pain score (HR, 1.22; P = .047). Minimum disease activity had the opposite result: It was associated with only ischemic heart failure (HR, 0.40; P = .04).
The study cohort more closely resembles a rheumatology cohort than a dermatology cohort, and it suggests that patients with psoriatic arthritis have different cardiovascular comorbidities than those with pure psoriasis, according to Diamant Thaçi, MD, PhD, professor and chairman of the department of dermatology at the University of Lübeck (Germany). “It shows how it important it is to look for comorbidity in the rheumatologic setting,” Dr. Thaçi said in an interview.
The study was supported by the Arthritis Society. Dr. Koppikar and Dr. Thaçi have no relevant financial disclosures.
SOURCE: Koppikar S et al. GRAPPA 2020 Virtual Annual Meeting.
FROM GRAPPA 2020 VIRTUAL ANNUAL MEETING
Doctors hesitated to embrace biosimilar infliximab in first 2 years
Physicians have been slow to embrace biosimilar versions of infliximab, but are more likely to prescribe it to new patients, based on data from a review of nearly 50,000 infliximab claims through Medicare in the first 2 years that biosimilars were available in the United States.
“Although biosimilar versions are as safe and effective as the biologic, patients and physicians may be more reluctant to switch from a working biologic regimen in a chronic setting than an acute one,” wrote Alice J. Chen, PhD, of the University of Southern California, Los Angeles, and colleagues.
In a research letter published in JAMA Internal Medicine, the investigators examined prescribing patterns of physicians switching between the originator infliximab (Remicade) and two of its biosimilars (Inflectra and Renflexis).
They reviewed infliximab use and reimbursement in the 100% Medicare Part B quarterly claims database from Jan. 1, 2017, to Dec. 31, 2018. The study population included Medicare patients classified as new if they had no infliximab claims in the prior 6 months; those with claims were considered returning patients.
In a comparison of claims reflecting 49,771 patients and 4,289 physicians in 2018, a total of 1,418 new patients (17.4%) and 4,495 (10.8%) returning patients used a biosimilar. “Of returning patients, half used the biosimilar version exclusively, whereas the other half switched between biologic and biosimilar versions,” the researchers noted.
Of the 4,289 physicians who prescribed infliximab, 3,124 prescribed no biosimilars, 1,015 prescribed both biologics and biosimilars, and 150 prescribed biosimilars only. Of the physicians who prescribed both, approximately 61% switched some patients from the biologic to the biosimilar; “the remainder kept individual patients on only 1 version of the drug but treated patients with both versions,” the researchers wrote.
The adoption of biosimilars may be slower for chronic vs. acute conditions, the researchers noted. “Prescribers may hesitate to switch clinically stable chronic patients from biologic regimens if they are unfamiliar with the biosimilar or face financial disincentives from prescribing it.”
The study findings were limited by several factors including the use of only 2 years of data and a focus only on Medicare Part B. Switching medications may have been influenced by factors such as lower copays for patients and rebates or discounts for physicians; however, “further research is needed to better understand biosimilar pricing dynamics and the barriers to adopting biosimilars for chronic conditions,” they concluded.
The study was supported by the Leonard D. Schaeffer Center for Health Policy & Economics at the University of Southern California, Los Angeles, and the National Institute on Aging. Lead author Dr. Chen also disclosed receiving personal fees from Amgen outside of the current study.
SOURCE: Chen AJ et al. JAMA Intern Med. 2020 July 20. doi: 10.1001/jamainternmed.2020.3188.
Physicians have been slow to embrace biosimilar versions of infliximab, but are more likely to prescribe it to new patients, based on data from a review of nearly 50,000 infliximab claims through Medicare in the first 2 years that biosimilars were available in the United States.
“Although biosimilar versions are as safe and effective as the biologic, patients and physicians may be more reluctant to switch from a working biologic regimen in a chronic setting than an acute one,” wrote Alice J. Chen, PhD, of the University of Southern California, Los Angeles, and colleagues.
In a research letter published in JAMA Internal Medicine, the investigators examined prescribing patterns of physicians switching between the originator infliximab (Remicade) and two of its biosimilars (Inflectra and Renflexis).
They reviewed infliximab use and reimbursement in the 100% Medicare Part B quarterly claims database from Jan. 1, 2017, to Dec. 31, 2018. The study population included Medicare patients classified as new if they had no infliximab claims in the prior 6 months; those with claims were considered returning patients.
In a comparison of claims reflecting 49,771 patients and 4,289 physicians in 2018, a total of 1,418 new patients (17.4%) and 4,495 (10.8%) returning patients used a biosimilar. “Of returning patients, half used the biosimilar version exclusively, whereas the other half switched between biologic and biosimilar versions,” the researchers noted.
Of the 4,289 physicians who prescribed infliximab, 3,124 prescribed no biosimilars, 1,015 prescribed both biologics and biosimilars, and 150 prescribed biosimilars only. Of the physicians who prescribed both, approximately 61% switched some patients from the biologic to the biosimilar; “the remainder kept individual patients on only 1 version of the drug but treated patients with both versions,” the researchers wrote.
The adoption of biosimilars may be slower for chronic vs. acute conditions, the researchers noted. “Prescribers may hesitate to switch clinically stable chronic patients from biologic regimens if they are unfamiliar with the biosimilar or face financial disincentives from prescribing it.”
The study findings were limited by several factors including the use of only 2 years of data and a focus only on Medicare Part B. Switching medications may have been influenced by factors such as lower copays for patients and rebates or discounts for physicians; however, “further research is needed to better understand biosimilar pricing dynamics and the barriers to adopting biosimilars for chronic conditions,” they concluded.
The study was supported by the Leonard D. Schaeffer Center for Health Policy & Economics at the University of Southern California, Los Angeles, and the National Institute on Aging. Lead author Dr. Chen also disclosed receiving personal fees from Amgen outside of the current study.
SOURCE: Chen AJ et al. JAMA Intern Med. 2020 July 20. doi: 10.1001/jamainternmed.2020.3188.
Physicians have been slow to embrace biosimilar versions of infliximab, but are more likely to prescribe it to new patients, based on data from a review of nearly 50,000 infliximab claims through Medicare in the first 2 years that biosimilars were available in the United States.
“Although biosimilar versions are as safe and effective as the biologic, patients and physicians may be more reluctant to switch from a working biologic regimen in a chronic setting than an acute one,” wrote Alice J. Chen, PhD, of the University of Southern California, Los Angeles, and colleagues.
In a research letter published in JAMA Internal Medicine, the investigators examined prescribing patterns of physicians switching between the originator infliximab (Remicade) and two of its biosimilars (Inflectra and Renflexis).
They reviewed infliximab use and reimbursement in the 100% Medicare Part B quarterly claims database from Jan. 1, 2017, to Dec. 31, 2018. The study population included Medicare patients classified as new if they had no infliximab claims in the prior 6 months; those with claims were considered returning patients.
In a comparison of claims reflecting 49,771 patients and 4,289 physicians in 2018, a total of 1,418 new patients (17.4%) and 4,495 (10.8%) returning patients used a biosimilar. “Of returning patients, half used the biosimilar version exclusively, whereas the other half switched between biologic and biosimilar versions,” the researchers noted.
Of the 4,289 physicians who prescribed infliximab, 3,124 prescribed no biosimilars, 1,015 prescribed both biologics and biosimilars, and 150 prescribed biosimilars only. Of the physicians who prescribed both, approximately 61% switched some patients from the biologic to the biosimilar; “the remainder kept individual patients on only 1 version of the drug but treated patients with both versions,” the researchers wrote.
The adoption of biosimilars may be slower for chronic vs. acute conditions, the researchers noted. “Prescribers may hesitate to switch clinically stable chronic patients from biologic regimens if they are unfamiliar with the biosimilar or face financial disincentives from prescribing it.”
The study findings were limited by several factors including the use of only 2 years of data and a focus only on Medicare Part B. Switching medications may have been influenced by factors such as lower copays for patients and rebates or discounts for physicians; however, “further research is needed to better understand biosimilar pricing dynamics and the barriers to adopting biosimilars for chronic conditions,” they concluded.
The study was supported by the Leonard D. Schaeffer Center for Health Policy & Economics at the University of Southern California, Los Angeles, and the National Institute on Aging. Lead author Dr. Chen also disclosed receiving personal fees from Amgen outside of the current study.
SOURCE: Chen AJ et al. JAMA Intern Med. 2020 July 20. doi: 10.1001/jamainternmed.2020.3188.
FROM JAMA INTERNAL MEDICINE
Key clinical point: A total of 17% of patients new to infliximab received a biosimilar in 2018, compared with 11% of returning patients.
Major finding: Biosimilar infliximab accounted for 10% of the market share 2 years after the product was introduced.
Study details: The data come from a review of infliximab claims across 49,771 patients and 4,289 physicians who prescribed infliximab in 2018.
Disclosures: The study was supported by the Leonard D. Schaeffer Center for Health Policy & Economics at the University of Southern California, Los Angeles, and the National Institute on Aging. Lead author Dr. Chen also disclosed receiving personal fees from Amgen outside of the current study.
Source: Chen AJ et al. JAMA Intern Med. 2020 July 20. doi: 10.1001/jamainternmed.2020.3188.