A Pivotal Clinical Study to Investigate Efimosfermin Alfa in Participants With Biopsy-confirmed F2- or F3-stage MASH
Eligible age
18–75 yrs
Accepts
All genders
Locations
12 states
Healthy volunteers
No
See if you qualify for this study
Answer a few quick questions about your location and health. Takes about a minute.
About this study
The purpose of this study is to assess the safety and efficacy of efimosfermin alfa in the resolution of steatohepatitis and improvement of liver-related clinical outcome compared to placebo in individuals with MASH and biopsy-confirmed F2- or F3-stage fibrosis.
Sponsor: GlaxoSmithKline
You may qualify if…
- ✓ 1. Able and willing to understand and sign a written informed consent form that must be obtained prior to the initiation of study procedures
- ✓ 2. Age \>=18 and \<=75 years at enrollment
- ✓ 3. History or presence of 2 or more of the 5 components of metabolic syndrome per American Heart Association definition
- ✓ 4. Liver biopsy confirmation of MASH consistent with stage F2 or F3 fibrosis and a NAS score \>=4 confirmed by a central pathologist
You may not qualify if…
- ✕ 1. Contraindication or ineligibility for percutaneous liver biopsy
- ✕ 2. ALT or AST \>=5 x upper limit of normal (ULN)
- ✕ 3. Total bilirubin \>=1.3 milligram per deciliter (mg/dL). Individuals with documented Gilbert's syndrome may be enrolled if they experienced an isolated increase in total bilirubin of \>=1.3 mg/dL and direct bilirubin is \<=20% of total bilirubin; otherwise, the individual will be excluded.
- ✕ 4. Serum albumin \<=3.5 grams per deciliter (g/dL)
- ✕ 5. International normalized ratio (INR) \>=1.3 not due to therapeutic anticoagulation. Individuals receiving chronic anticoagulant treatment with higher INR values may be enrolled at the discretion of the Investigator and Study Medical Monitor.
- ✕ 6. Alkaline phosphatase (ALP) \>=2\*ULN
- ✕ 7. Platelet (PLT) count \<140,000 per (/) cubic millimeter (mm\^3); individuals with a PLT count between 110,000/mm\^3 and 140,000/mm\^3 may be enrolled after discussion with the Study Medical Monitor.
- ✕ 8. Serum creatinine \>=1.5 mg/dL or creatinine clearance \<=60 milliliter (mL)/minute (min)/1.73 square meter by Chronic Kidney Disease Epidemiology Collaboration equation
Where it's recruiting
Arcadia · Covina · Los Angeles · Santa Maria …
Boynton Beach · Cape Coral · Hialeah · Inverness …
Topeka
Springfield · St Louis
East Syracuse · New York
Morehead City
Akron · Springboro
Chattanooga
Austin · Bellaire · Brownsville · Dallas …
West Jordan
Manassas
Seattle
Source: ClinicalTrials.gov · NCT07221227 · last updated 2026-04-16