This is a multi-center evaluation of efruxifermin (EFX) in a randomized, double-blind, placebo-controlled study in cirrhotic subjects with biopsy-proven F4 compensated NASH.

Inclusion Criteria:

• Males and non-pregnant, non-lactating females between 18-75 years of age inclusive, based on the date of signing informed consent.
• Main Study Only: Previous history or presence of Type 2 diabetes or 2 out of 4 components of metabolic syndrome (obesity, dyslipidemia, elevated blood pressure, elevated fasting glucose).
• Main Study Only: Biopsy-proven compensated cirrhosis due to NASH.
• Cohort D Only: Diagnosis of type 2 diabetes
• Cohort D Only: Use of GLP-1R agonist for at least 90 days
• Cohort D Only: Biopsy-proven liver fibrosis stages 1, 2, or 3

Exclusion Criteria:

• Main Study Only: Weight loss > 10% in the 90 days prior to screening until randomization or from the time of collection of the liver biopsy used to assess subject eligibility until randomization, whichever is longer.
• Type 1 diabetes or uncontrolled Type 2 diabetes
• Cohort D Only: Weight loss > 5% in the 90 days prior to screening
• Cohort D Only: Presence of cirrhosis on liver biopsy

Other inclusion and exclusion criteria may apply