Efruxifermin SYMMETRY Phase 3 Interim (MASH)
Pre-specified Phase 3 interim for efruxifermin (FGF21 analog) in compensated cirrhotic MASH. REZDIFFRA (the only approved MASH drug) is not approved in cirrhotic patients. Watch: ≥1-stage fibrosis improvement without MASH worsening at week 36.
What’s at stake
Efruxifermin is a weekly subcutaneous Fc-fusion analog of fibroblast growth factor 21 (FGF21) — a liver-secreted hormone regulating fat metabolism, insulin sensitivity, and energy balance — developed by Akero Therapeutics for MASH. The Fc-fusion domain extends the half-life of FGF21 from minutes to a week, enabling once-weekly dosing. Akero is evaluating efruxifermin in Phase 3 trials in both pre-cirrhotic (F2/F3) and cirrhotic (F4) MASH; REZDIFFRA, the only approved MASH drug, was not studied in cirrhotic patients, leaving that population entirely without an approved option.
No primer in glossary yet.
- MASHdiseaseMetabolic-Associated Steatohepatitis
Liver inflammation caused by fat accumulation, with metabolic risk factors. Renamed from NASH in 2023. Resmetirom (REZDIFFRA) is the only approved therapy.
of 3 historical Phase 3 readouts in NASH / MASH: 1 positive, 1 mixed, 1 negative.
How Ph3 readouts in NASH / MASH have landed.
Reference, not prediction. We surface the historical record so you can read it yourself. We never extrapolate to the upcoming event.
Competitive landscape
| Drug | Company | Modality | Mechanism | Phase | Next catalyst |
|---|---|---|---|---|---|
| REZDIFFRAresmetirom | MDGL | small molecule | thyroid hormone receptor-β agonist | INTERIM · Oct 26 |
Disclosure trail
- Apr 9, 2026·21d agopinned · highest confidenceMED confPRQTRtop claimQ1'27
“The pre-specified Phase 3 SYMMETRY interim analysis is expected in the first quarter of 2027.”
conf 83%via llm