Abstracts tagged "Pharmacoepidemiology"

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: 1336 • ACR Convergence 2025
Effectiveness of new initiators of tofacitinib and other biologic/targeted synthetic DMARDs in patients with rheumatoid arthritis
Katherine Liao¹, Chandrasekar Gopalakrishnan², Jinoos Yazdany³, Griffith Bell⁴, Suraj Mothi⁵, Genevieve Gauthier⁶, Arne Yndestad⁷ and Milena Gianfrancesco⁸, ¹Division of Rheumatology, Inflammation, and Immunity, Brigham and Women’s Hospital, Boston, MA, USA, Boston, MA, ²OM¹ Inc, Boston, MA, USA, Boston, ³UCSF, San Francisco, CA, ⁴Pfizer Inc, New York, NY, USA, Boston, MA, ⁵OM¹ Inc, Boston, MA, USA, Boston, MA, ⁶Pfizer Canada ULC, Kirkland, QC, Canada, Montreal, Canada, ⁷Pfizer Inc, Oslo, Norway, Oslo, Norway, ⁸Pfizer Inc, New York, NY, USA, New York, NY
Background/Purpose: Though the efficacy and safety profile of tofacitinib in RA has been established in prior trials, the effectiveness of tofacitinib in routine care settings…
Abstract Number: 1098 • ACR Convergence 2025
Tolerability of Apremilast: Gastrointestinal Side Effects Dominate While Cardiac Safety Remains Reassuring
Francisco Arias¹, Omar Hamdan², Asim Khanfar³, Kristel Barturen⁴ and Roa’a Alshajrawi⁵, ¹University of Texas Rio Grande Valley, McAllen, TX, ²University of Jordan, Az-Zarqa, Jordan, ³Rochester General Hospital, Rochester, NY, ⁴Universidad San Martin de Porres, McAllen, TX, ⁵University of Jordan, Amman, 'Amman, Jordan
Background/Purpose: Apremilast, a PDE-4 inhibitor, is commonly indicated for patients with psoriasis as well as Behçet’s disease. Although this medication is generally well tolerated, numerous…
Abstract Number: 2627 • ACR Convergence 2025
Risk of Adverse Pregnancy Outcomes in Individuals with Rheumatic Diseases Using Prenatal Antirheumatic Drugs: a Population-Based Cohort Study
Shenthuraan Tharmarajah¹, Dharini Mahendira², Swaleh Hussain¹, Howard Berger³, Sara Guilcher⁴, Lisa McCarthy⁴ and Mina Tadrous¹, ¹University of Toronto, Toronto, ON, Canada, ²St Michael's Hospital, Toronto, Canada, ³St. Michael's Hospital, Toronto, Canada, ⁴University of Toronto, Toronto, Canada
Background/Purpose: Disease-modifying antirheumatic drugs (DMARDs) are the primary class of drug therapies generally used to treat rheumatic diseases, such as rheumatoid arthritis (RA), systemic lupus…
Abstract Number: 1054 • ACR Convergence 2025
Comedication Patterns of Romosozumab Early Adopters Among Medicare Enrollees: An Unsupervised Clustering Approach
Ye Liu¹, Hongke Wu¹, Tarun Arora² and Jeffrey Curtis³, ¹University of Alabama at Birmingham, Birmingham, AL, ²FASTER, Birmingham, AL, ³Foundation for Advancing Science, Technology, Education and Research, Birmingham, AL
Background/Purpose: Polypharmacy is a major concern in osteoporosis (OP) management, especially in older adults. Romosozumab (romo), approved in April 2019, is a parenteral OP medicine…
Abstract Number: 2571 • ACR Convergence 2025
Rare Clinically Significant Methotrexate Toxicity Despite Frequent Laboratory Abnormalities: A Population-Based Study of Methotrexate Monitoring
Griffin Reed¹, Jeffrey Yang¹, Georges El Hasbani¹, Cynthia Crowson², Hannah Langenfeld¹, Jeffrey Sparks³, Bryant England⁴, gabriela Schmajuk⁵, Kaleb Michaud⁴, John Davis¹ and Vanessa Kronzer¹, ¹Mayo Clinic, Rochester, MN, ²Mayo Clinic, Stewartvillle, MN, ³Brigham and Women's Hospital, Boston, MA, ⁴University of Nebraska Medical Center, Omaha, NE, ⁵University of California, San Francisco, and San Francisco Veterans Affairs Medical Center, San Francisco, CA
Background/Purpose: Methotrexate laboratory monitoring is highly resource intensive, and recent evidence questions whether the true toxicity of methotrexate has been over-estimated. Therefore, we aimed to…
Abstract Number: 1048 • ACR Convergence 2025
Impact of Hydroxychloroquine Usage on QTc in Veterans with Rheumatic Musculoskeletal Disease
Malika Ibrahim¹, Samuel Good², Victor Tran³, David Chetrit⁴, Michael McClean⁵, Myung Shin Sim⁶, Hannah Kang¹, Jennifer Barton⁷, Meika Fang⁸, Angelo Gaffo⁹, fadi Hage¹⁰, cynthia Jackevicius⁵, Michael Pillinger¹¹, gabriela Schmajuk¹², Jasvinder Singh¹³, Alberta Warner¹⁴, Neal Yaun¹⁵ and John FitzGerald¹⁶, ¹David Geffen School of Medicine at University of California, Los Angeles, Department of Medicine, Los Angeles, CA, ²David Geffen School of Medicine at University of California, Los Angeles, Department of Medicine, Division of Rheumatology, Los Angeles, CA, ³David Geffen School of Medicine at University of California, Los Angeles, Department of Medicine, Costa Mesa, CA, ⁴Carolina Health Specialists, Myrtle Beach, SC, ⁵Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, ⁶West LA VA Medical Center, Los Angeles, ⁷VA Portland Health Care System/OHSU, Portland, OR, ⁸VA Greater Los Angeles/UCLA, Los Angeles, CA, ⁹Division of Rheumatology and Clinical Immunology, University of Alabama, Birmingham, AL, USA; Birmingham VA Medical Center, Birmingham, AL, USA, Birmingham, AL, ¹⁰VA Birmingham health care, Birmingham, AL, ¹¹New York University Grossman School of Medicine, New York,, NY, ¹²University of California, San Francisco, and San Francisco Veterans Affairs Medical Center, San Francisco, CA, ¹³Baylor College of Medicine, Houston, TX, ¹⁴VA Greater Los Angeles/UCLA, Los Angeles, ¹⁵UCSF / SFVA, San Francisco, ¹⁶UCLA, Los Angeles, CA
Background/Purpose: Hydroxychloroquine (HCQ) is widely used for rheumatic diseases, but data on its cardiac safety, particularly QTc prolongation, remains limited. Concerns about HCQ inducing QTc…
Abstract Number: 2519 • ACR Convergence 2025
A Disproportionality Analysis of FDA Adverse Event Reporting System (FAERS) Events for Avacopan
Shiamak Cooper¹, Asim Khanfar², Yousef al-mabrouk³, Omar Hamdan⁴ and Anthony Ocon⁵, ¹Rochester General Hospital, Irondequoit, NY, ²Rochester General Hospital, Rochester, NY, ³Prince Hanza Hospital, Amman, Jordan, ⁴University of Jordan, Az-Zarqa, Jordan, ⁵Rochester Regional Health, Fairport, NY
Background/Purpose: Avacopan, a C5a receptor inhibitor, is used as an adjunctive treatment for ANCA-associated vasculitis. Previous studies have highlighted its efficacy in reducing glucocorticoid use…
Abstract Number: 1042 • ACR Convergence 2025
Biosimilar adalimumab prescriptions increase before the CVS formulary change and decrease after
Eric Roberts¹, gabriela Schmajuk², Diana Ung³, Mackenzie Clark³ and Jinoos Yazdany⁴, ¹University of California, San Francisco, SF, CA, ²University of California, San Francisco, and San Francisco Veterans Affairs Medical Center, San Francisco, CA, ³UCSF, San Francisco, ⁴UCSF, San Francisco, CA
Background/Purpose: In 2023 patent exclusivity for adalimumab expired and nine biosimilars were introduced to the U.S. market with a tenth launched in May 2024. The…
Abstract Number: 2343 • ACR Convergence 2025
Risk of Arrhythmias Following IL-17 Inhibitor Use; A Pharmacosurvellience Study of FDA Adverse Event Reporting System (FAERS)
Asim Khanfar¹, Omar Hamdan², Anil Regmi³, Mayra Goreja⁴ and Anthony Ocon⁵, ¹Rochester General Hospital, Rochester, NY, ²University of Jordan, Az-Zarqa, Jordan, ³Parkview Health, Fort Wayne, IN, ⁴Rochester General Hospital, Rochester, ⁵Rochester Regional Health, Fairport, NY
Background/Purpose: Interleukin-17 (IL-17) inhibitors, such as secukinumab and ixekizumab, are used for their anti-inflammatory effects in conditions like psoriasis and ankylosing spondylitis. IL-17 signaling has…
Abstract Number: 0666 • ACR Convergence 2025
Reported Adverse Events Associated With Systemic Lupus Erythematosus (SLE) Treatment: Insights From the FDA Adverse Event Reporting System (FAERS) 2023
Sarah Crisci, New York University, New York, NY
Background/Purpose: Systemic Lupus Erythematosus (SLE) is a chronic autoimmune disease with heterogeneous symptoms, complicating diagnosis and treatment. Historically, treatment included broad immunosuppressants, but real-world data…
Abstract Number: 2287 • ACR Convergence 2025
Interpretable Ensemble Machine Learning Explaining Nonadherence and the Risk of Nonpersistence of Targeted Disease-Modifying Antirheumatic Agents in Older Adults with Rheumatoid Arthritis
yinan huang¹ and Sandeep Agarwal², ¹Department of Pharmacy Administration, University of Mississippi, Oxford, MS, US, MS, ²Baylor College of Medicine, Houston
Background/Purpose: Interpretable machine learning (ML) method can identify factors associated with biological or targeted synthetic disease modifying antirheumatic drugs (b/tsDMARDs) nonadherence and nonpersistence for rheumatoid…

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