TheraRadar

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Data updated: Mar 10, 2026

TREMFYA

GUSELKUMAB Interleukin-23 Antagonists
Immunology Approved 2017-07-13

Tremfya (guselkumab) is an interleukin-23 antagonist indicated for the treatment of several chronic inflammatory and autoimmune conditions. It is approved for adults and pediatric patients aged 6 years and older weighing at least 40 kg with moderate-to-severe plaque psoriasis or active psoriatic arthritis. The medication is also indicated for adult patients with moderately to severely active ulcerative colitis and Crohn's disease. It serves as a systemic therapeutic option for patients requiring advanced management of these conditions.

Source: FDA Label • Johnson & Johnson • Interleukin-23 Antagonist

How TREMFYA Works

Guselkumab is a human monoclonal antibody that selectively binds to the p19 subunit of interleukin-23 (IL-23). By binding to this subunit, the drug inhibits the interaction between IL-23 and its receptor. IL-23 is a naturally occurring cytokine that plays a key role in normal inflammatory and immune responses. By blocking this pathway, guselkumab prevents the release of proinflammatory cytokines and chemokines that contribute to disease pathology.

Source: FDA Label
8
Indications
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Phase 3 Trials
3
Priority Reviews
8
Years on Market

Details

Status
Prescription
First Approved
2017-07-13
Routes
INJECTION
Dosage Forms
INJECTABLE

Companies

Active Ingredient: GUSELKUMAB

TREMFYA Approval History

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What TREMFYA Treats

4 indications

TREMFYA is approved for 4 conditions since its original approval in 2017. These indications span multiple therapeutic areas including oncology, immunology, and more.

  • Moderate-to-severe plaque psoriasis
  • Active psoriatic arthritis
  • Moderately to severely active ulcerative colitis
  • Moderately to severely active Crohn's disease
Source: FDA Label

TREMFYA Target & Pathway

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Target

IL-23 (Interleukin-23) Cytokine

A cytokine that promotes Th17 cell development and maintenance. IL-23 is upstream of IL-17 in the inflammatory cascade driving psoriasis and inflammatory bowel disease. Blocking IL-23 provides sustained control of these conditions.

TREMFYA Competitors

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10 other drugs also target IL-23. Compare mechanisms, indications, and trial activity.

View all 10 IL-23 drugs →
Drug = Competitor name Company = Manufacturer N indic. = FDA-approved indications → Date = Patent/exclusivity expiry

Competitors share the same molecular target (IL-23). Earlier expiry dates signal biosimilar/generic opportunities.

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Active Pipeline

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Ongoing clinical trials by development phase

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Key Completed Trials

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Completed studies with published results, ranked by significance

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Trial Timeline

Full development history with FDA approval milestones

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Understanding FDA Approval Types
Count Type What it means
- ORIG Original approval - drug first enters market
- SUPPL - Efficacy New indication (new disease/condition approved)
- SUPPL - Labeling Label text changes (warnings, dosing updates)
- SUPPL - Manufacturing Production changes (new facility)
- SUPPL - Chemistry Formulation changes (new dosage strength)

Green lines in the timeline show ORIG and Efficacy approvals - the clinically meaningful milestones.

TREMFYA FDA Label Details

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Indications & Usage

FDA Label (PDF)

TREMFYA is an interleukin-23 antagonist indicated for the treatment of: adults and pediatric patients 6 years of age and older who also weigh at least 40 kg with moderate-to-severe plaque psoriasis and who are candidates for systemic therapy or phototherapy. adults and pediatric patients 6 years of age and older who also weigh at least 40 kg with active psoriatic arthritis. adults with moderately to severely active ulcerative colitis. adults with moderately to severely active Crohn's disease. 1.1 Plaque Psoriasis TREMFYA is indicated for the treatment of adults and pediatric patients 6 years o...

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Data Sources

Data sourced from official FDA and NIH databases. Click links to verify on original sources.