Clinical research

SYNERGY-NASH — tirzepatide MASH

Tirzepatide produced MASH resolution at 44–62% at 52 weeks. Phase 3 advancing.

Tirzepatide produced MASH resolution at 44–62% at 52 weeks. Phase 3 advancing.

Trial design

Loomba et al. (NEJM 2024): adults with biopsy-confirmed MASH and F2-F3 fibrosis. Tirz 5/10/15 mg vs placebo for 52 weeks.

Results

EndpointPlacebo5 mg10 mg15 mg
MASH resolution10%44%56%62%
Fibrosis improvement30%54%51%51%

Implications

Phase 3 advancing. Plausible 2027 FDA MASH indication for tirzepatide. Companion semaglutide trial (ESSENCE) showed similar interim results.

RA
Dr. Richard Allen, M.D. Endocrinology Reviewer · View bio →
Reviewed and fact-checked on May 20, 2026.