An injectable or intravenous biological therapy used to treat rheumatoid arthritis, psoriatic arthritis, and ulcerative colitis.
SIMPONI is a tumor necrosis factor (TNF) blocker indicated for the treatment of: adult patients with moderately to severely active rheumatoid arthritis (RA) in combination with methotrexate ( 1.1 ) adult patients with active psoriatic arthritis (PsA) alone, or in combination with methotrexate ( 1.2 ) adult patients with active ankylosing spondylitis (AS) ( 1.3 ) adult and pediatric patients weighing at least 15 kg with moderately to severely active ulcerative colitis (UC) ( 1.4 ) 1.1 Rheumatoid Arthritis SIMPONI, in combination with methotrexate, is indicated for the treatment of adult patients with moderately to severely active rheumatoid arthritis. 1.2 Psoriatic Arthritis SIMPONI, alone or in combination with methotrexate, is indicated for the treatment of adult patients with active psoriatic arthritis. 1.3 Ankylosing Spondylitis SIMPONI is indicated for the treatment of adult patient…
12.1 Mechanism of Action Golimumab is a human monoclonal antibody that binds to both the soluble and transmembrane bioactive forms of human TNFα. This interaction prevents the binding of TNFα to its receptors, thereby inhibiting the biological activity of TNFα (a cytokine protein). There was no evidence of the golimumab antibody binding to other TNF superfamily ligands; in particular, the golimumab antibody did not bind or neutralize human lymphotoxin. Golimumab did not lyse human monocytes expressing transmembrane TNF in the presence of complement or effector cells. Elevated TNFα levels in the blood, synovium, and joints have been implicated in the pathophysiology of several chronic inflam…
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Plain-English summaries and drug-class explainers are written and reviewed by the Priya Life Science editorial team, led by Sreepriya Prasannan (MSc Digital Transformation of Life Sciences (Innopharma Education / Griffith College); MSc & BSc Botany). Data is retrieved automatically from the sources above and cross-checked with AI-assisted verification (Anthropic's Claude) — brand and generic names are matched against the exact FDA product record so that a combination product or a different formulation cannot be mistaken for the drug on this page. An editor reviews the result before publication. We describe this in full in our editorial standards and corrections policy. The FDA data on this page was last retrieved on 7 Aug 2026.