Abstracts tagged "Pharmacoepidemiology"

Abstract Number: 0478 • ACR Convergence 2025
Racial and Ethnic Disparities in DMARD Use and in Medicare Part B-Covered Options Among Medicare Beneficiaries with Late-Onset Rheumatoid Arthritis
ashkan ara¹, John FitzGerald² and Susan Ettner², ¹UCLA Health, Los Angeles, CA, ²UCLA, Los Angeles, CA
Background/Purpose: Biologic and targeted synthetic DMARDs can substantially improve the quality of life for Medicare beneficiaries with rheumatoid arthritis (RA). However, racial and ethnic disparities…
Abstract Number: 2008 • ACR Convergence 2025
Exposure to Anaerobic Antibiotics and Risk of Gout Flares: Target Trial Emulation for the Potential Role of the Gut Microbiome in Gout and Chronic Kidney Disease (CKD)
Natalie McCormick¹, Sharan Rai², Chio Yokose³, leo lu⁴, Robert Terkeltaub⁵, Lama Nazzal⁶, Huilin Li⁶, Dylan Dodd⁷ and Hyon K. Choi⁸, ¹Massachusetts General Hospital, Boston, MA, ²Massachusetts General Hospital/Harvard Medical School, Boston, MA, ³Massachusetts General Hospital, Waltham, MA, ⁴Arthritis Research Canada, Vancouver, BC, Canada, ⁵Retired, San Diego, CA, ⁶NYU Langone, New York, NY, ⁷Stanford University, Palo Alto, CA, ⁸MASSACHUSETTS GENERAL HOSPITAL, Lexington, MA
Background/Purpose: As reported in Cell Press journals,1,2 intestinal commensal purine-degrading bacteria anaerobically degrade urate to anti-inflammatory short chain fatty acids, including butyrate, and thus may…
Abstract Number: 0267 • ACR Convergence 2025
Pharmacosurvellience study of FDA Adverse Event Reporting System (FAERS) events of Secukinumab and Guselkumab
NUR BARLAS¹, Sait Barlas¹ and Emre Adalier², ¹Florida State University College of Medicine, Cape Coral, ²University of Pavia School of Medicine & Surgery, Pavia, Italy
Background/Purpose: Interleukin-17 (IL-17) and interleukin-23 (IL-23) inhibitors have revolutionized treatment for psoriatic arthritis, axial spondyloarthritis, and moderate-to-severe plaque psoriasis. IL-17 inhibitors block the pro-inflammatory cytokine…
Abstract Number: 2003 • ACR Convergence 2025
Evaluating Patient Outcomes Pre and Post Pegloticase Initiation among Uncontrolled Gout Patients: Findings from MORE2 Registry and Medicare Fee-For-Service Claims Data
Julia Buchfuhrer¹, Niranjan Kathe², Elizabeth Ibiloye³, Seth Kuranz⁴, Virginia Noxon-Wood⁴, Alexis Woods⁵ and Laurence Gozalo⁴, ¹JB Arthritis and Rheumatology Center, Downey, CA, ²Amgen Inc, San Diego, CA, ³Amgen Inc, Thousand Oaks, CA, ⁴Inovalon, Bowie, MD, ⁵Amgen, Detroit, MI
Background/Purpose: Among patients (pts) with chronic refractory gout (CRG), traditional urate lowering therapies are often inadequate, necessitating advanced therapies. Pegloticase, a recombinant uricase enzyme, rapidly…
Abstract Number: 0247 • ACR Convergence 2025
Use of Nintedanib in Patients with Progressive Pulmonary Fibrosis
Elizabeth Volkmann¹, Steven Nathan², Karen Coeytaux³, Yanni Fan⁴, Jill Curran³, Haikun Bao³, Kamila Sroka-Saidi⁵, Ann Chauffe⁶ and Jeffrey J Swigris⁷, ¹Division of Rheumatology, Department of Medicine, University of California, David Geffen School of Medicine, Los Angeles, CA, USA, Los Angeles, CA, ²Inova Advanced Lung Disease and Transplant Program, Falls Church, VA, USA, Falls Church, ³Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA, Ridgefield, ⁴Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA, Ridgefield, CT, ⁵Boehringer Ingelheim International GmbH, Ingelheim am Rhein, Germany, Ingelheim am Rhein, Germany, ⁶Boehringer Ingelheim Pharmaceuticals, Inc., Ridgefield, CT, USA, Newberry, FL, ⁷Center for Interstitial Lung Disease, Division of Pulmonary, Critical Care and Sleep Medicine, National Jewish Health, Denver, CO, USA, Denver
Background/Purpose: Nintedanib was approved in the US for the treatment of chronic fibrosing interstitial lung diseases (ILDs) with a progressive phenotype (progressive pulmonary fibrosis [PPF])…
Abstract Number: 1926 • ACR Convergence 2025
Real World Rate of Efficacy of Adalimumab Biosimilars Following a Mandated Switch in an Academic Medical Center
Katharine McCarthy, viktoriya avlasevich and Darren Tabechian, URMC, Rochester, NY
Background/Purpose: The proliferation of similar biotherapeutic products (biosimilars) has helped to reduce the cost burden of biologic therapies for health care systems1. Multiple studies have…
Abstract Number: 0165 • ACR Convergence 2025
Per-Protocol Analysis of the Effectiveness of GLP1 Agonists Against SGLT2 Inhibitors on Osteoarthritis Outcomes
Nene Ukonu¹, David Felson², Michael LaValley³ and S. Reza Jafarzadeh⁴, ¹Boston University School of Public Health, Boston, MA, ²Boston University, Boston, MA, ³Boston University School of Public Health, Arlington, MA, ⁴Boston University Chobanian & Avedisian School of Medicine, Boston, MA
Background/Purpose: Anti-diabetic medications often have effects on other conditions. GLP1 agonists (GLP1a) have shown protective effects on OA outcomes in trials and short-term trial emulations,…
Abstract Number: 1895 • ACR Convergence 2025
Assessing the Validity of Self-Reported Medication Data Through Metabolite Analysis: Data from the Osteoarthritis Initiative
Kate Lapane¹, Anne Hume², Jeffrey Driban³, Shao-Hsien Liu¹, Timothy McAlington⁴, Charles Eaton⁵, Shike Xu⁶ and Bing Lu⁷, ¹UMass Chan Medical School, Worcester, MA, ²College of Pharmacy, University of Rhode Island, Kingston, RI, ³University of Massachusetts Chan Medical School, Marlborough, NH, ⁴UMass Chan School of Medicine, Arlington, MA, ⁵Brown University, Pawtucket, RI, ⁶University of Connecticut Health Center, Farmington, CT, ⁷UConn Health Center, Newton, MA
Background/Purpose: Pharmacotherapy, including non-steroidal anti-inflammatory agents (NSAIDs), is commonly used to alleviate symptoms of osteoarthritis (OA); however, these medications may increase the risk of adverse…
Abstract Number: 1657 • ACR Convergence 2025
Extracting TNF Inhibitor Switching Reasons and Trajectories From Real-World Data Using Large Language Models
Brenda Miao¹, Marie Binvignat², Augusto Garcia-Agundez³, Maxim Bravo⁴, Christopher Williams⁵, Claire Miao⁴, Ahmed Alaa⁶, Vivek Rudrapatna⁵, gabriela Schmajuk⁷ and Jinoos Yazdany³, ¹UCSF, Fremont, CA, ²Sorbonne University, Paris, France, ³UCSF, San Francisco, CA, ⁴UC Berkeley, San Francisco, ⁵UCSF, San Francisco, ⁶UC Berkeley, Berkeley, ⁷University of California, San Francisco, and San Francisco Veterans Affairs Medical Center, San Francisco, CA
Background/Purpose: Tumor necrosis factor inhibitors (TNFi) are cornerstones of autoimmune‑disease therapy, yet many patients switch agents because of loss of effectiveness, adverse events, or insurance…
Abstract Number: 1656 • ACR Convergence 2025
Risk of Serious Infection associated with non-TNF biologic initiation after Anti-TNF Use in Older Adults with Rheumatoid Arthritis
Jiha Lee¹, Sofia Pedro² and Kaleb Michaud³, ¹University of Michigan, Ann Arbor, ²Forward, The National Databank for Rheumatic Diseases, Wichita, KS, ³University of Nebraska Medical Center, Omaha, NE
Background/Purpose: In older adults with rheumatoid arthritis (RA), anti-TNF therapies are typically used as first-line biologic treatment. However, many patients require a switch to non-TNF…
Abstract Number: 1593 • ACR Convergence 2025
Comparison of rituximab induction and maintenance regimens in ANCA-associated vasculitis: PK/PD modelling approach in real-world patients
Blaise Pasquiers¹, Benoit Blanchet², Xavier Puéchal³, Xavier Declèves¹, Pascal Cohen⁴, Claire Goulvestre¹, Marion Casadevall¹, Ines Benhabiles¹, Michel Vidal¹, David Ternant¹, Benjamin Terrier⁵ and Alicja Puszkiel⁶, ¹Hopital Cochin, Paris, France, ²National Referral Centre for Rare Autoimmune and Systemic Diseases, Hôpital Cochin, Paris, France, ³Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hospital Cochin, and Université Paris Cité, Paris ( ⁷⁵⁰¹⁴ ), Ile-de-France, France, ⁴Department of Internal Medicine, National Referral Center for Rare Systemic Autoimmune Diseases, Hospital Cochin, Paris, France, ⁵Cochin Hospital, Paris, France, ⁶Cochin Hospital, Paris
Background/Purpose: For the treatment of antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV), rituximab (RTX) may be given as a 4-dose regimen (375 mg/m2 weekly for 4…
Abstract Number: 1005 • ACR Convergence 2024
Pharmacosurvellience Study of FDA Adverse Event Reporting System (FAERS) Events of Tofacitinib and Upadacitinib
Nur Barlas, Sait Barlas, Stefan Milutinovic and Shristi Basnyat, Florida State University College of Medicine Internal Medicine Residency Program at Lee Health, Cape Coral
Background/Purpose: Janus Kinase (JAK) inhibitors are the agents of choice for the treatment of rheumatoid arthritis, psoriatic arthritis, and ankylosing spondylitis when other DMARDs are…
Abstract Number: 2566 • ACR Convergence 2024
Detrimental Effects of Proton Pump Inhibitors on Bone Mineral Density Are Not Mediated by Changes in Serum Calcium or Parathyroid Hormone in Patients with Inflammatory Rheumatic Diseases: A Cross-sectional Study
andriko Palmowski¹, Zhivana Boydzhieva², Paula Hoff³, Sandra Hermann³, burkhard Muche³, David Simon⁴, Gerhard Krönke³, Edgar Wiebe⁵ and FRANK HARTMUT DR. BUTTGEREIT⁵, ¹Charité - Universittsmedizin Berlin, Berlin, Germany, ²Charité Universittsmedizin, Berlin, Germany, ³Rheumatology, Charité, Berlin, Germany, ⁴Department of Rheumatology and Clinical Immunology, Charité - Universitätsmedizin Berlin, Berlin, Germany/ Department of Internal Medicine 3, University of Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany/Deutsches Zentrum für Immuntherapie (DZI), University of Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany, Berlin, Germany, ⁵Charité University Medicine Berlin, Berlin, Germany
Background/Purpose: In a previous study, we found daily proton pump inhibitor (PPI) intake to be associated with decreased bone mineral density in patients with inflammatory…
Abstract Number: 1049 • ACR Convergence 2024
Very Low Uptake of Biosimilar Adalimumab in the First 9 Months of Availability in Rheumatology
Eric Roberts¹, Gabriela Schmajuk² and Jinoos Yazdany³, ¹University of California, San Francisco, SF, CA, ²UCSF / SFVA, San Francisco, CA, ³UCSF, San Francisco, CA
Background/Purpose: In 2021, over 300,000 patients in the United States used adalimumab, making it one of the highest-grossing drugs globally. In 2023, patent exclusivity for…
Abstract Number: 2609 • ACR Convergence 2024
Drivers of Infliximab Biosimilar Uptake: A Comparative Analysis of New Biosimilar Initiations versus Switching in a National Rheumatology Registry
Eric Roberts¹, Nick Bansback², Chien-Wen Tseng³, Steve Shiboski⁴, Jing Li⁵, Gabriela Schmajuk⁶ and Jinoos Yazdany⁷, ¹University of California, San Francisco, SF, CA, ²University of British Columbia, Vancouver, BC, Canada, ³University of Hawai'i John A. Burns School of Medicine, Honolulu, ⁴University of California, San Francisco, San Francisco, ⁵University of California, San Francisco, San Francisco, CA, ⁶UCSF / SFVA, San Francisco, CA, ⁷UCSF, San Francisco, CA
Background/Purpose: Biosimilars hold promise for reducing pharmaceutical expenditures, however uptake has lagged. We analyzed the variability in new biosimilar starts and switching from bio-originator infliximab…

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