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Johnson & Johnson announces new data showing TREMFYA® (guselkumab) is the only IL-23 to deliver durable fistula remission through 48 weeks in Crohn's disease with perianal fistula

$JNJPress releaseOct 19, 2026, 8:00 AM ETRead the release

Johnson & Johnson announced one-year results from the Phase 3 FUZION study showing TREMFYA (guselkumab) maintained or improved combined fistula remission through 48 weeks in adults with perianal fistulizing Crohn's disease. In the 100 mg q8w maintenance arm, combined fistula remission rose from 28% at Week 24 to 35% at Week 48, versus 10% on placebo at Week 24; more than 90% of randomized patients completed treatment through Week 48 with a safety profile consistent with the established TREMFYA profile.

Key figures

Drug Name
TREMFYA (guselkumab)
Phase Of Trial
Phase 3
Placebo week24 remission
10%
Treatment completion rate
more than 90%
Week24 remission 200mg q4w
27%
Combined fistula remission 100mg q8w week24
28%
Combined fistula remission 100mg q8w week48
35%

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