Abstracts tagged "Uric Acid, Urate"

Abstract Number: 2001 • ACR Convergence 2025
Characteristics of Gout Flares Over Time with Treat-to-Target Urate-Lowering Therapy Use
Jason Yang¹, Ted Mikuls², Harlan Sayles², Michael Pillinger³, Jeff Newcomb², Bridget Kramer², Anne Davis-Karim⁴, Mary Brophy⁵, Ryan Ferguson⁵, Paul Palevsky⁶, James O'Dell² and Tuhina Neogi⁷, ¹Boston Medical Center, Boston, MA, ²University of Nebraska Medical Center, Omaha, NE, ³New York University Grossman School of Medicine, New York,, NY, ⁴VA Cooperative Studies Program Clinical Research Pharmacy Coordinating Center, Albuquerque, NM, ⁵VA Cooperative Studies Program Coordinating Center, Boston, MA, ⁶VA Pittsburgh Healthcare System, Pittsburgh, PA, ⁷Boston University School of Medicine, Boston, MA
Background/Purpose: Gout flares are an important treatment outcome in gout. Although flares are typically assessed by occurrence (yes/no) or a simple count in trials of…
Abstract Number: 1998 • ACR Convergence 2025
Reduction in Tophi Observed in Patients with Uncontrolled Gout Treated with NASP: Results from Phase 3 DISSOLVE Studies
Herbert Baraf¹, Puja Khanna², Frédéric Lioté³, Rehan Azeem⁴, Wesley DeHaan⁵, Ben Peace⁶, Hugues Santin-Janin⁷, Bhavisha Desai⁸ and Alan Kivitz⁹, ¹The Center for Rheumatology and Bone Research, Rheumatology, Wheaton, Maryland, USA; Division of Rheumatology, The George Washington University, Washington, DC, ²Division of Rheumatology, University of Michigan, Ann Arbor, MI, ³Université Paris Cité-Inserm UMR¹¹³² & Rheumatology Department, GH Paris Saint Joseph & Institut Arthur Vernes, Paris, France, ⁴Global MACD, Sobi Inc., Waltham, MA, ⁵Sobi, Inc, Waltham, MA, ⁶Statistical Science, Sobi, Stockholm, Sweden, ⁷Sobi, BASEL, Switzerland, ⁸Sobi, Glastonbury, CT, ⁹Altoona Center for Clinical Research, Duncansville, PA
Background/Purpose: Patients (pts) with uncontrolled gout (UG) and tophi experience joint pain, impaired function and poor quality of life (Schlesinger et al. Semin Arthritis Rheum…
Abstract Number: 1994 • ACR Convergence 2025
Pharmacokinetics of Ready-to-Use Pegloticase Formulation Compared to Standard Pegloticase Dosing: Data from the AGILE Study
Orrin Troum¹, John Botson², Afroz S. Mohammad³, Xiaoqing Yang⁴, Nathan Roe⁵, Supra Verma⁶ and Brian Lamoreaux⁷, ¹Providence Health Care/Doctor's of St John's (MDSJ) Santa Monica, CA, Santa Monica, CA, ²Orthopedic Physicians Alaska, Anchorage, AK, ³Amgen Inc, Deerfield, ⁴Amgen, Seattle, WA, ⁵Horizon Therapeutics, Boise, ID, ⁶Horizon Therapeutics, Newport Beach, CA, ⁷Amgen, Inc., Deerfield, IL
Background/Purpose: Pegloticase is approved for uncontrolled gout as 8-mg infusions admixed in 250 cc of normal saline over 120 minutes or more administered every 2…
Abstract Number: 1992 • ACR Convergence 2025
Tolerance of Methotrexate Coadministered with Pegloticase in Patients with Uncontrolled Gout: Findings from MIRROR RCT
Vinicius Domingues¹, Alexis Woods², Xiaoqing Yang³, Brian Lamoreaux⁴ and Michael Weinblatt⁵, ¹Rheumatology, Allergy, Asthma & Arthritis Center, Daytona beach, FL, ²Amgen, Detroit, MI, ³Amgen, Seattle, WA, ⁴Amgen, Inc., Deerfield, IL, ⁵Brigham and Women's Hospital/ Harvard Medical School, Waban, MA
Background/Purpose: Methotrexate (MTX) coadministered with pegloticase attenuates anti-drug antibody formation, leading to higher response rates and markedly reduced infusion reaction risk compared with pegloticase +…
Abstract Number: 1990 • ACR Convergence 2025
Pilot Study: Testing the Accuracy of a Capillary Point-of-Care Device Compared to Traditional Venous Analysis for Serum Urate Measurements Among Patients with Gout
Alex Tinianow¹, Saiajay Chigurupati¹, Ethan Carey¹, Jiaqi Wang², Sharan Rai³, Gregory Challener⁴, Hyon K. Choi⁵, Philip Riches⁶, Natalie McCormick¹ and Chio Yokose⁷, ¹Massachusetts General Hospital, Boston, MA, ²Massachusetts General Hospital, BOston, ³Massachusetts General Hospital/Harvard Medical School, Boston, MA, ⁴MGH, Boston, MA, ⁵MASSACHUSETTS GENERAL HOSPITAL, Lexington, MA, ⁶NHS Lothian, Edinburgh, UK, Edinburgh, United Kingdom, ⁷Massachusetts General Hospital, Waltham, MA
Background/Purpose: Rheumatology guidelines endorse a treat-to-target (TTT) approach targeting serum urate (SU) < 6 mg/dL among patients with gout who qualify for urate-lowering therapy (ULT).…
Abstract Number: L05 • ACR Convergence 2024
Prolonged Plasma Urate-Lowering After a Single Intravenous Administration of PRX-115, a Novel PEGylated Uricase, in Participants with Elevated Urate Levels
Christian Schwabe¹, Orit Cohen Barak², Alexandra Cole³, Hadar Reuveni², Liron Shelev², Liora Blinder-Haddad² and Nicola Dalbeth⁴, ¹NZCR, Auckland, New Zealand, ²Protalix Ltd, Karmiel, Israel, ³NZCR, Christchurch, New Zealand, ⁴University of Auckland, Auckland, New Zealand
Background/Purpose: PEGylated uricases have already demonstrated therapeutic modality in the treatment of refractory gout patients. PRX-115 is a recombinant homotetrameric uricase enzyme, produced from Candida…
Abstract Number: 0266 • ACR Convergence 2024
Analysis of Gout Remission Definitions in a Randomised Controlled Trial of Colchicine Prophylaxis for People with Gout Initiating Allopurinol
Dansoa Tabi-Amponsah¹, Lisa Stamp², Anne Horne³, Jill Drake⁴, Sarah Stewart⁵, Gregory Gamble³, Keith Petrie¹ and Nicola Dalbeth³, ¹The University of Auckland, Auckland, New Zealand, ²University of Otago, Christchurch, Christchurch, New Zealand, ³University of Auckland, Auckland, New Zealand, ⁴University of Otago, Christchurch, New Zealand, ⁵Auckland University of Technology, Auckland, New Zealand
Background/Purpose: To investigate the effect of colchicine prophylaxis on gout remission when commencing urate lowering therapy (ULT), and illness perceptions of people in remission, using…
Abstract Number: 2018 • ACR Convergence 2024
Non-adherence to Urate Lowering Therapy in Gout After 5 Years Is Related to Poor Outcomes – Results from the NOR-Gout Study
Tillmann Uhlig¹, Lars F Karoliussen¹, Joseph Sexton², Sella A. Provan², Espen A. Haavardsholm³, Nicola Dalbeth⁴ and Hilde B Hammer¹, ¹Diakonhjemmet Hospital, Oslo, Norway, ²Center for treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway, Oslo, Norway, ³Center for treatment of Rheumatic and Musculoskeletal Diseases (REMEDY), Diakonhjemmet Hospital, Oslo, Norway, and University of Oslo (UiO), Institute of Clinical Medicine, Oslo, Norway, Oslo, Norway, ⁴University of Auckland, Auckland, New Zealand
Background/Purpose: People with gout need to adhere to medication over time to achieve good outcomes. We assessed self-reported adherence to medication with urate lowering therapy…
Abstract Number: 0275 • ACR Convergence 2024
Targeting IRAK4 in Monosodium Urate Crystals Induced Inflammation
Sadiq Umar¹ and Sriram Ravindran², ¹University of Illinois at Chicago, Chicago, IL, ²University of Illinois, Chicago
Background/Purpose: Gout, the leading cause of inflammatory arthritis, is becoming increasingly prevalent worldwide, affecting both developed and developing countries. This condition results from the deposition…
Abstract Number: 2019 • ACR Convergence 2024
Safety and Efficacy of SEL-212 in the US and ex-US Subgroups: Results from the Phase 3 DISSOLVE Studies
Michael Pillinger¹, Alan Kivitz², Atul Singhal³, Anand Patel⁴, Rehan Azeem⁵, Aletta Falk⁶, Bhavisha Desai⁷, Hugues Santin-Janin⁸ and Herbert Baraf⁹, ¹New York University Grossman School of Medicine, New York,, NY, ²Altoona Center for Clinical Research, Duncansville, PA, ³Southwest Arthritis Research Group, Mesquite, TX, ⁴Conquest Research, Winter Park, FL, ⁵Sobi Inc., Waltham, MA, ⁶Sobi, Stockholm, Sweden, ⁷Sobi, Glastonbury, CT, ⁸Sobi, BETTENDORF (68560), France, ⁹Center for Rheumatology and Bone Research, Wheaton, MD
Background/Purpose: The DISSOLVE Phase 3 study program investigated the efficacy and safety of SEL-212, a novel, once-monthly, two-component infusion therapy consisting of pegadricase (SEL-037, a…
Abstract Number: 0279 • ACR Convergence 2024
Macrophage Intracellular Fates of Monosodium Urate and Calcium Pyrophosphate Crystals: Phagocytosis, Exchanged/expulsion and Dissolution of Crystals
Charles Leroy¹, Nghia Pham², François Brial³, Brenda Kischkel⁴, gwénaêlle Jayat⁵, Elena Ishow⁶, Christèle Combes⁷, Leo Joosten⁴, Augustin Latourte⁸, Pascal Richette⁹ and Hang-Korng Ea¹⁰, ¹Inserm 1132 / Université Paris Cité, levallois-perret, France, ²INSERM 1132, BIOSCAR, Lariboisière hospital, Paris, France, ³Inserm 1132/ Université Paris Cité, Paris, France, ⁴Radboudumc, Nijmegen, Netherlands, ⁵Université Paris cité / Inserm 1132, paris, France, ⁶Université de Nantes / Ceisam, Nantes, France, ⁷INP-ENSIACET, Toulouse, France, ⁸AP-HP, Paris, France, ⁹Lariboisière Hospital, Paris, France, ¹⁰Université Paris Cité, INSERM UMR 1132 BIOSCAR, Paris, France
Background/Purpose: Gout, due to the presence of monosodium urate crystals (MSU) and calcium pyrophosphate (CPP) crystal deposition disease are both responsible for recurrent inflammation flares.…
Abstract Number: 2023 • ACR Convergence 2024
A PEGylated Mammalian Uricase Suitable for Intramuscular Administration to Patients with Refractory Chronic Gout
Frank Fan¹, Riyong Liu¹ and Yu Wang², ¹Chongqing PegBio Biopharm Co.,Ltd., Chongqing, China (People's Republic), ²Hangzhou Grand Biologic Pharmaceutical, Inc., Hangzhou, China (People's Republic)
Background/Purpose: For patients with refractory chronic gout, i.e., those who have frequent gout flares and/or persistent tophi despite treatment with the highest tolerable doses of…
Abstract Number: 0280 • ACR Convergence 2024
Trends in Management and Consultations for Gout: A Study of 18 Million Adults Using the OpenSAFELY Platform
Mark Russell¹, Jon Massey², Edward Roddy³, Brian MacKenna⁴, Seb Bacon⁴, Ben Goldacre⁴, Colm Andrews⁴, George Hickman⁴, Amir Mehrkar², Arti Mahto⁵, Andrew Rutherford⁶, Samir Patel¹, Maryam Adas⁷, Edward Alveyn⁷, deepak Nagra¹, Katie Bechman⁷, Joanna Ledingham⁸, Joanna Hudson⁹, Sam Norton¹, Andrew Cope⁷ and James Galloway¹⁰, ¹King's College London, London, England, United Kingdom, ²University of Oxford, Oxford, England, United Kingdom, ³Keele University, Keele, England, United Kingdom, ⁴University of Oxford, Oxford, United Kingdom, ⁵King's College Hospital NHS Foundation Trust, London, United Kingdom, ⁶King's College Hospital NHS Foundation Trust, London, England, United Kingdom, ⁷King's College London, London, United Kingdom, ⁸Portsmouth Hospitals University NHS Trust, Portsmouth, United Kingdom, ⁹King's College London, King's College London, United Kingdom, ¹⁰Centre for Rheumatic Diseases, King's College London, London, United Kingdom
Background/Purpose: Data from before the COVID-19 pandemic had shown persistently poor care for people with gout in many countries worldwide. Whether this was further exacerbated…
Abstract Number: 2127 • ACR Convergence 2024
Relationship Between Serum Uric Acid and Trabecular Bone Score (TBS) in Healthy Population
Isabella Silvestre Ignarro¹, Gabriela Tieme Ochikubo², Liliam Takayama³, Valeria de falco Caparbo², Camille Pinto Figueiredo², Marcos Rafael Nogueira Cavalcanti¹, Angelita Gomes De Souza¹, Isabela Judith Martins Bensenor¹, Ricardo Fuller¹ and Diogo Domiciano⁴, ¹Bone Metabolism Laboratory, Division of Rheumatology, Faculdade de Medicina, Universidade de São Paulo, São Paulo, SP, Brazil, ²Bone Metabolism Laboratory, Division of Rheumatology, Faculdade de Medicina, Universidade de São Paulo, Sao Paulo, Brazil, São Paulo, SP, Brazil, ³Division of Rheumatology, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, São Paulo, SP, Brazil, ⁴Rheumatology Division, Hospital das Clinicas HCFMUSP, Faculdade de Medicina, Universidade de Sao Paulo, Sao Paulo, SP, Brazil, São Paulo, SP, Brazil
Background/Purpose: Serum uric acid (UA) has been postulated to play a role against bone loss due to antioxidant mechanisms. Some studies have shown association between…
Abstract Number: 0907 • ACR Convergence 2024
Association of Rare and Common Genetic Variants in MOCOS with Inadequate Response to Allopurinol
Niamh Fanning¹, Murray Cadzow², Ruth Topless³, Chris Frampton⁴, Nicola Dalbeth⁵, Tony Merriman⁶ and Lisa Stamp⁴, ¹University of Otago, Christchurch, New Zealand, ²University of Otago, Dunedin 9054, New Zealand, ³University of Otago, Dunedin, New Zealand, ⁴University of Otago, Christchurch, Christchurch, New Zealand, ⁵University of Auckland, Auckland, New Zealand, ⁶University of Alabama at Birmingham, Homewood, AL
Background/Purpose: The minor allele of the common rs2231142 (Q141K) ABCG2 variant predicts inadequate response to allopurinol urate lowering therapy (ULT). We hypothesize that additional variants in genes…

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