for people ages 18-75 (full criteria)
at La Jolla, California and other locations
study started
estimated completion



The primary objective of this study is to evaluate the safety and tolerability of study drug(s) in adults with nonalcoholic steatohepatitis (NASH).

Official Title

A Proof of Concept, Open-Label Study Evaluating the Safety, Tolerability, and Efficacy of Monotherapy and Combination Regimens in Subjects With Nonalcoholic Steatohepatitis (NASH)


Nonalcoholic Steatohepatitis Fatty Liver Non-alcoholic Fatty Liver Disease Firsocostat Semaglutide Cilofexor Semaglutide + Firsocostat Semaglutide + Cilofexor 30 mg Semaglutide + Cilofexor 100 mg Semaglutide + Firsocostat + Cilofexor


For people ages 18-75

Key Inclusion Criteria:

  • Historical liver biopsy consistent with NASH with stage 2-3 fibrosis according to NASH Clinical Research Network (CRN) classification OR clinical diagnosis of nonalcoholic fatty liver disease and screening FibroTest, magnetic resonance imaging - proton density fat fraction (MRI-PDFF), and FibroScan
  • Screening laboratory parameters, as determined by central laboratory:
  • Alanine aminotransferase (ALT) ≤ 5 x upper limit of the normal range (ULN)
  • Estimated glomerular filtration rate (eGFR) ≥ 30 milliliter/minute (mL/min), as calculated by the Modification of Diet in Renal Disease (MDRD) study equation
  • HbA1c ≤ 9.5%
  • International normalized ratio (INR) ≤ 1.2, unless due to therapeutic anti-coagulation therapy
  • Platelet count ≥ 100,000/μL
  • Total bilirubin < 1.3 x ULN unless alternate etiology such as Gilbert's syndrome present
  • Calcitonin ≤ 100 ng/L
  • Body Mass Index (BMI) > 23 kg/m2 and body weight of > 60 kg

Key Exclusion Criteria:

  • Any historical liver biopsy consistent with cirrhosis
  • Any history of decompensated liver disease, including ascites, hepatic encephalopathy, or variceal bleeding
  • Other causes of liver disease, including but not limited to: alcoholic liver disease, hepatitis B, hepatitis C, autoimmune disorders (eg, primary biliary cholangitis (PBC), primary sclerosing cholangitis (PSC), autoimmune hepatitis), drug-induced hepatotoxicity, Wilson disease, clinically significant iron overload, or alpha-1-antitrypsin deficiency requiring treatment
  • History of liver transplantation
  • History of hepatocellular carcinoma
  • History of pancreatitis (acute or chronic)
  • Personal or first degree relative(s) history of multiple endocrine neoplasia type 2 or medullary thyroid carcinoma
  • Treatment with glucagon-like peptide-1 receptor agonists (GLP-1 RA) in the period from 90 days prior to the date of the Screening Visit
  • Individuals on antidiabetic medications must be on a stable dose for at least 90 days prior to the date of the Screening Visit and in the period between the date of the Screening Visit and Enrollment (Day -14)

Note: Other protocol defined Inclusion/Exclusion criteria may apply.


  • University of California San Diego (UCSD)
    La Jolla California 92037 United States
  • Medical Associates Research Group
    San Diego California 92123 United States


in progress, not accepting new patients
Start Date
Completion Date
Gilead Sciences
Phase 2
Study Type
Last Updated