Tremfya vs Omvoh
Both are IL-23 inhibitors. Here is how Tremfya and Omvoh compare on class, mechanism, dosing, approval and supply.
At a glance
Key differences
- Same class. Both Tremfya and Omvoh are IL-23 inhibitors, so they work through the same broad mechanism. Differences between them tend to be about dosing, route, how selective they are, and side effects rather than what they target.
- How they are taken. Both are given by the intravenous, subcutaneous route.
- Time on the market. Tremfya was first approved by the FDA in 2017, Omvoh in 2023. That gives Tremfya roughly 6 more years of real-world use and long-term safety data.
- Who markets them. Tremfya is marketed by Janssen (Johnson & Johnson); Omvoh by Eli Lilly.
What each one treats
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. ( 1.1 ) adults and pediatric patients 6 years of age and older who also weigh at least 40 kg with active psoriatic arthritis. ( 1.2 ) adults with moderately to severely active ulcerative colitis. ( 1.3 ) adults with moderately to severely active Crohn's disease. ( 1.4 ) 1.1 Plaque Psoriasis TREMFYA is 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. 1.2 Psoriatic Arthritis TREMFYA is indicated for the treatment of adults and pediatric patients 6 years of age and olde…
OMVOH is indicated for the treatment of: moderately to severely active ulcerative colitis in adults. moderately to severely active Crohn's disease in adults. OMVOH TM is an interleukin-23 antagonist indicated for the treatment of: moderately to severely active ulcerative colitis in adults ( 1 ) moderately to severely active Crohn's disease in adults ( 1 )
How each one works
12.1 Mechanism of Action Guselkumab is a human monoclonal IgG1λ antibody that selectively binds to the p19 subunit of interleukin 23 (IL-23) and inhibits its interaction with the IL-23 receptor. IL-23 is a naturally occurring cytokine that is involved in normal inflammatory and immune responses. Guselkumab inhibits the release of proinflammatory cytokines and chemokines.
12.1 Mechanism of Action Mirikizumab-mrkz is a humanized IgG4 monoclonal antibody that selectively binds to the p19 subunit of human IL-23 cytokine and inhibits its interaction with the IL-23 receptor. IL-23 is involved in mucosal inflammation and affects the differentiation, expansion, and survival of T cell subsets, and innate immune cell subsets, which represent sources of pro-inflammatory cytokines. Research in animal models has shown that pharmacologic inhibition of IL-23p19 can ameliorate intestinal inflammation. Mirikizumab-mrkz inhibits the release of pro-inflammatory cytokines and chemokines.
Related comparisons
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How this page is built
The facts on this page are pulled directly from official U.S. FDA datasets — they are not written from memory. Each field below names the dataset it came from, so you can check it yourself.
- FDA Drug Label (openFDA) ↗ Indications, mechanism of action and pharmacologic class
- Drugs@FDA ↗ First FDA approval date and the company holding the application
- FDA Drug Shortage Database ↗ Current US supply / shortage status
Plain-English summaries and drug-class explainers are written and reviewed 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 6 Oct 2026. How every register is built: methodology · fixes we have made: corrections log.