A Study of Guselkumab and Golimumab Combination Therapy in Participants With Active Psoriatic Arthritis (AFFINITY)

  • End date
    Feb 17, 2023
  • participants needed
  • sponsor
    Janssen Research & Development, LLC
Updated on 5 June 2022
tumor necrosis factor
tumour necrosis
rheumatoid nodules
psoriatic plaque
arthritis mutilans
peripheral arthritis
polyarticular arthritis


The purpose of this study is to evaluate the efficacy of guselkumab plus golimumab combination treatment in participants with active psoriatic arthritis (PsA) and inadequate response (IR) to a prior anti-tumor necrosis factor-alpha (anti-TNF-alpha) therapy by assessing clinical response compared with guselkumab monotherapy.


PsA is a chronic inflammatory multi-faceted disease that impacts the peripheral and axial joints, soft tissues, and skin. Guselkumab is a fully human monoclonal antibody (mAb) directed against the p19 subunit of interleukin (IL)-23, blocks the binding of extracellular IL-23 to the cell surface IL-23 receptor, inhibiting IL-23 specific intracellular signaling, subsequent activation, and cytokine production. Golimumab is a fully human anti-TNF-alpha mAb that binds to TNF-alpha with high affinity, prevents binding to its receptors, thereby inhibiting the biological activity of TNF-alpha and resulting in limited production or activity of inflammatory cytokines, thereby providing therapeutic benefit in various chronic inflammatory disorders, including PsA. This study will consist of a Screening Phase (up to 6 weeks), Double-blind Phase from Weeks 0 to 24 which includes the active treatment phase and the primary efficacy visit (Week 24), and Safety Follow-up Phase from Week 24 to Week 36. Key safety assessments will include adverse events (AEs), clinical laboratory safety tests (hematology and chemistry), vital signs, monitoring for injection-site and hypersensitivity reactions, and early detection of active tuberculosis (TB). The total duration of the study is up to 42 weeks.

Condition Arthritis, Psoriatic
Treatment Placebo, Golimumab, Guselkumab
Clinical Study IdentifierNCT05071664
SponsorJanssen Research & Development, LLC
Last Modified on5 June 2022


Yes No Not Sure

Inclusion Criteria

Have a diagnosis of psoriatic arthritis (PsA) for greater than or equal to (>=) 6 months prior to the first administration of study intervention and meet Classification criteria for PsA (CASPAR) criteria at screening
Have active PsA as defined by: at least 3 swollen joints and at least 3 tender joints at screening and at baseline; and high-sensitivity C-reactive protein (hsCRP) >= 0.3 milligrams per deciliter (mg/dL) at screening from the central laboratory
Have at least 1 of the following PsA subsets: distal interphalangeal joint involvement, polyarticular arthritis with absence of rheumatoid nodules, arthritis mutilans, asymmetric peripheral arthritis, or spondylitis with peripheral arthritis
Have active plaque psoriasis, with at least one psoriatic plaque of >=2 centimeter (cm) diameter or nail changes consistent with psoriasis
Have an inadequate response (IR) to 1 anti-tumor necrosis factor-alpha (anti-TNF-alpha) therapy, defined as presence of active PsA despite previous treatment with only 1 prior anti-TNF-alpha agent and the following: a. Lack of benefit to 1 prior anti-TNF-alpha therapy, as documented in the participant history by the treating physician, after at least 12 weeks of etanercept, adalimumab, certolizumab pegol therapy, or at least 14-weeks of infliximab, or any biosimilar of these 4 therapies. Documented lack of benefit may include inadequate improvement in joint counts, physical function, or disease activity; b. The last dose of anti-TNF-alpha therapy must have occurred greater than 5 half-lives of the drug prior to screening visit (washout period)

Exclusion Criteria

Has other inflammatory diseases that might confound the evaluations of benefit of guselkumab and/or golimumab therapy, including but not limited to rheumatoid arthritis (RA), ankylosing spondylitis (AS), nonradiographic axial spondyloarthritis (nr AxSpA), systemic lupus erythematosus, or lyme disease
Has known intolerance or hypersensitivity to any biologic medication, or known allergies or clinically significant reactions to murine, chimeric, or human proteins, monoclonal antibodies (mAb), or antibody fragments
Has received prior treatment with golimumab or guselkumab or has documented intolerance to prior anti-TNF-alpha therapy in the participant history by the treating physician
Has received more than 1 prior anti-TNF-alpha agent (or biosimilars)
Positive human immunodeficiency virus (HIV) antibody test
Clear my responses

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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