TREMFYA® (guselkumab) demonstrated sustained clinical and endoscopic remission through 3 years in moderately to severely active Crohn's disease
Johnson & Johnson reported 3-year data from GALAXI 2 and 3 studies showing TREMFYA achieved up to 94% clinical remission and 61% endoscopic remission in Crohn's patients. 88% maintained 90-day corticosteroid-free remission. Safety profile remained consistent. Data presented at ACG 2026.
How this was made

The 30-second read
Why it matters
The three‑year remission rates are among the highest reported, reinforcing JNJ's position in Crohn's disease treatment.
Market read
First report of robust long‑term Phase 3 data; likely to influence JNJ stock and the broader IBD therapeutic space.
What to watch
Potential reimbursement or market access challenges could limit upside despite strong data.
Background
TREMFYA (guselkumab) is JNJ's dual‑acting IL‑23 antibody approved for several immune‑mediated diseases.
Ticker impact
Johnson & Johnson announced three-year Phase 3 data showing high remission rates for TREMFYA in Crohn's disease.
potential upside as market prices in improved efficacy outlook
First disclosure of durable efficacy and safety; analysts often react positively to successful late‑stage trial results.
Market effects
Strengthens the IBD/biologics segment and may pressure peers with competing IL‑23 therapies.
U.S. biotech and pharma stocks could see modest gains.
Highlights continued demand for advanced biologics worldwide.
Counterpoint
If pricing pressure on JNJ is already baked in, the data may be already reflected.
Key entities
- CompanyJohnson & Johnson
Manufacturer of TREMFYA and holder of worldwide marketing rights.
- DrugTREMFYA
Guselkumab biologic for Crohn's disease and other indications.

