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Abstract Number: 2112

Stringent Disease Activity Control at 2 Years Across Psoriatic Arthritis Domains Irrespective of Baseline Characteristics in Patients Treated with Guselkumab: Post Hoc Analysis of a Phase 3, Randomized, Double-blind, Placebo-controlled Study

Christopher Ritchlin1, Philip J Mease2, Wolf-Henning Boehncke3, John Tesser4, Soumya Chakravarty5, Emmanouil Rampakakis6, May Shawi7, Elena Schiopu8, Joseph Merola9, Iain B McInnes10 and Atul Deodhar11, 1Allergy, Immunology and Rheumatology Division, University of Rochester Medical School, Canandaigua, NY, 2Swedish Medical Center/Providence St. Joseph Health, Seattle, WA, 3Deptartment of Dermatology, Geneva University Hospitals, University of Geneva, Geneva, Switzerland, 4Arizona Arthritis & Rheumatology Associates, Phoenix, AZ, 5Janssen Scientific Affairs, LLC; Drexel University College of Medicine, Villanova, PA, 6McGill University, Department of Pediatrics and JSS Medical Research, Montréal, QC, Canada, 7Immunology Global Medical Affairs, Janssen Pharmaceutical Companies of Johnson & Johnson, Horsham, PA, 8Michigan Medicine Rheumatology Clinic – Taubman Center, Ann Arbor, MI, 9Brigham and Women's Hospital, Harvard Medical School, Boston, MA, 10Institute of Infection, Immunity and Inflammation, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow, Scotland, United Kingdom, 11Oregon Health & Science University, Portland, OR, USA, Portland, OR

Meeting: ACR Convergence 2022

Keywords: Biologicals, clinical trial, Psoriatic arthritis, Spondyloarthropathies

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Session Information

Date: Monday, November 14, 2022

Title: Spondyloarthritis Including PsA – Treatment Poster III: PsA

Session Type: Poster Session D

Session Time: 1:00PM-3:00PM

Background/Purpose: Guselkumab (GUS) is associated with robust and sustained improvement in PsA signs and symptoms in subgroups of patients (pts) pooled from the phase 3 DISCOVER-1 and DISCOVER-2 (D2) trials, across a variety of baseline (BL) pt characteristics through 11, and 2 years (D2 only)2. In this post-hoc analysis using D2 data, we evaluated the efficacy of GUS in inducing long-term (W100) stringent disease control in Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA)-recommended domains across BL characteristics.

Methods: D2 enrolled biologic-naïve adults with active PsA defined as ≥5 swollen and ≥5 tender joint counts (SJC; TJC) and CRP ≥0.6 mg/dL. 739 pts were randomized (1:1:1) and treated with GUS 100 mg Q4W (n=245); GUS 100 mg at W0, W4, then Q8W (n=248); or placebo (PBO; n=246) with crossover to GUS 100 mg Q4W at W24. In this analysis, only GUS-randomized pts were included (n=493). Achievement of the following outcomes at W100 was assessed: minimal disease activity (MDA), ACR 50% improvement (ACR50), ACR70, Investigator’s Global Assessment score of 0 [clear skin] (IGA 0), Psoriatic Arthritis Disease Activity Score – low disease activity (PASDAS LDA), resolution of enthesitis and dactylitis, Functional Assessment of Chronic Illness Therapy-Fatigue (FACIT-F) response (≥4-point improvement), and Health Assessment Quality Disease Index (HAQ-DI) response (≥0.35-point improvement). BL characteristics of interest were pt sex, baseline BMI, SJC, TJC, PsA duration, CRP, % body surface area (BSA) with psoriasis, and PASI score, and use of conventional synthetic (cs) DMARDs and methotrexate (MTX). Non-responder imputation was used for missing categorical response data.

Results: 442 (90%) GUS-randomized pts completed study treatment through W100. With few exceptions, achievement of MDA response (Fig 1), IGA 0 (Fig 2), and resolution of dactylitis (Fig 3) at W100 was demonstrated across a variety of baseline pt characteristics, without consistent differences in proportion of responders across pt subgroups of adequate sample size or between GUS dosing regimens. Similar trends were observed for achievement of ACR50, ACR70, PASDAS LDA, enthesitis resolution, FACIT-F response, and HAQ-DI response.

Conclusion: Irrespective of dosing regimen, treatment with GUS resulted in sustained achievement of several stringent endpoints spanning key GRAPPA-recommended domains through 2 years across a variety of BL demographic and disease characteristics. These results further support the long-term efficacy of GUS across the full spectrum of PsA disease domains and diverse PsA populations.

References:

  1. Ritchlin CT. et al. RMD Open. 2022 Mar;8(1):e002195.
  2. Ritchlin CT. et al. Abstract N°AB0526. EULAR 2021.

Supporting image 1

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Disclosures: C. Ritchlin, UCB, AbbVie, Eli Lilly, Pfizer Inc, Novartis, Janssen, Bristol-Myers Squibb; P. Mease, AbbVie, Amgen, Janssen, Novartis, Pfizer Inc, UCB, Sun Pharma, Eli Lilly, Bristol-Myers Squibb(BMS), Celgene, Genentech; W. Boehncke, AbbVie/Abbott, Almirall, Janssen, Leo, Eli Lilly, Novartis, UCB; J. Tesser, AbbVie, Amgen, Bristol-Myers Squibb(BMS), Celgene, CoreVitas, Eli Lilly, Gilead, Janssen, Pfizer, Sun Pharma, Novartis; S. Chakravarty, Janssen Scientific Affairs, LLC, Johnson & Johnson; E. Rampakakis, Janssen, JSS Medical Research; M. Shawi, Janssen Pharmaceutical Companies of Johnson and Johnson; E. Schiopu, Janssen; J. Merola, Novartis, Pfizer, Sun Pharma, UCB Pharma, Bristol-Myers Squibb(BMS), AbbVie, Dermavant, Eli Lilly, Janssen, Arena, Biogen; I. McInnes, Bristol-Myers Squibb (BMS), Janssen, Novartis, UCB, Pfizer, AbbVie, Celgene, AstraZeneca, Boehringer Ingelheim, EveloBio, LEO, Lilly; A. Deodhar, AbbVie, Amgen, Bristol-Myers Squibb, Celgene, Eli Lilly, GlaxoSmithKline, Janssen, Novartis, Pfizer Inc, UCB Pharma, Aurinia, Moonlake.

To cite this abstract in AMA style:

Ritchlin C, Mease P, Boehncke W, Tesser J, Chakravarty S, Rampakakis E, Shawi M, Schiopu E, Merola J, McInnes I, Deodhar A. Stringent Disease Activity Control at 2 Years Across Psoriatic Arthritis Domains Irrespective of Baseline Characteristics in Patients Treated with Guselkumab: Post Hoc Analysis of a Phase 3, Randomized, Double-blind, Placebo-controlled Study [abstract]. Arthritis Rheumatol. 2022; 74 (suppl 9). https://acrabstracts.org/abstract/stringent-disease-activity-control-at-2-years-across-psoriatic-arthritis-domains-irrespective-of-baseline-characteristics-in-patients-treated-with-guselkumab-post-hoc-analysis-of-a-phase-3-randomize/. Accessed .
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