A Study of Guselkumab in Participants With Active Psoriatic Arthritis and an Inadequate Response to Anti-Tumor Necrosis Factor Alpha (Anti-TNF Alpha) Therapy

Summary

The purpose of this study is to evaluate guselkumab efficacy versus placebo in participants with active psoriatic arthritis (PsA) and an inadequate response to Anti-Tumor Necrosis Factor Alpha (TNF-alpha) therapy by assessing the reduction in signs and symptoms of joint disease.

Timeline

Start

2019-03-22

Primary completion

2020-11-11

Completion

2020-11-11

Publications

• Gossec L, Baraliakos X, Galloway J, Oke V, Sfikakis P, Rampakakis E, Sharaf M, Lavie F, McInnes IB. Guselkumab Improves Patient-Reported Outcomes Among Participants with Psoriatic Arthritis and Inadequate Response to Tumor Necrosis Factor Inhibitors in the COSMOS Study. Rheumatol Ther. 2026 Apr;13(2):347-360. doi: 10.1007/s40744-025-00821-2. Epub 2026 Jan 23.
• Gladman DD, Eder L, Selmi C, Mease PJ, Ogdie A, Lozenski K, Adamson E, Sharaf M, Rampakakis E, Pina Vegas L, Coates LC. Influence of Biological Sex on Participant Characteristics, Guselkumab Efficacy and Radiographic Progression in Active Psoriatic Arthritis: Post Hoc Analysis of Three Randomized Trials. Rheumatol Ther. 2026 Feb;13(1):213-229. doi: 10.1007/s40744-025-00812-3. Epub 2025 Dec 15.
• Warren RB, McInnes IB, Nash P, Grouin JM, Lyris N, Willems D, Taieb V, Eells J, Mease PJ. Comparative Effectiveness of Bimekizumab and Guselkumab in Patients with Psoriatic Arthritis at 52 Weeks Assessed Using a Matching-Adjusted Indirect Comparison. Rheumatol Ther. 2024 Jun;11(3):829-839. doi: 10.1007/s40744-024-00659-0. Epub 2024 Mar 15.
• Strober B, Coates LC, Lebwohl MG, Deodhar A, Leibowitz E, Rowland K, Kollmeier AP, Miller M, Wang Y, Li S, Chakravarty SD, Chan D, Shawi M, Yang YW, Thaҫi D, Rahman P. Long-Term Safety of Guselkumab in Patients with Psoriatic Disease: An Integrated Analysis of Eleven Phase II/III Clinical Studies in Psoriasis and Psoriatic Arthritis. Drug Saf. 2024 Jan;47(1):39-57. doi: 10.1007/s40264-023-01361-w. Epub 2023 Oct 31.
• Schett G, Chen W, Gao S, Chakravarty SD, Shawi M, Lavie F, Zimmermann M, Sharaf M, Coates LC, Siebert S. Effect of guselkumab on serum biomarkers in patients with active psoriatic arthritis and inadequate response to tumor necrosis factor inhibitors: results from the COSMOS phase 3b study. Arthritis Res Ther. 2023 Aug 16;25(1):150. doi: 10.1186/s13075-023-03125-4.
• Rahman P, Boehncke WH, Mease PJ, Gottlieb AB, McInnes IB, Shawi M, Wang Y, Sheng S, Kollmeier AP, Theander E, Yu J, Leibowitz E, Marrache AM, Coates LC. Safety of Guselkumab With and Without Prior Tumor Necrosis Factor Inhibitor Treatment: Pooled Results Across 4 Studies in Patients With Psoriatic Arthritis. J Rheumatol. 2023 Jun;50(6):769-780. doi: 10.3899/jrheum.220928. Epub 2023 Jan 15.
• Coates LC, Gossec L, Theander E, Bergmans P, Neuhold M, Karyekar CS, Shawi M, Noel W, Schett G, McInnes IB. Efficacy and safety of guselkumab in patients with active psoriatic arthritis who are inadequate responders to tumour necrosis factor inhibitors: results through one year of a phase IIIb, randomised, controlled study (COSMOS). Ann Rheum Dis. 2022 Mar;81(3):359-369. doi: 10.1136/annrheumdis-2021-220991. Epub 2021 Nov 24.

Drugs

Indications