Simtuzumab (GS-6624) in Treatment of Advanced Liver Fibrosis But Not Cirrhosis Secondary to NASH


Simtuzumab (GS-6624) in Treatment of Advanced Liver Fibrosis But Not Cirrhosis Secondary to NASH

A Phase 2b, Dose-Ranging, Randomized, Double-Blind, Placebo-Controlled Trial Evaluating the Safety and Efficacy of GS-6624, a Monoclonal Antibody Against Lysyl Oxidase-Like 2 (LOXL2), in Subjects with Advanced Liver Fibrosis but not Cirrhosis Secondary to Non-Alcoholic Steatohepatitis (NASH)

This study will evaluate whether simtuzumab (formerly referred to as GS-6624) is effective at preventing the histologic progression of liver fibrosis and the clinical progression to cirrhosis in participants with non-alcoholic steatohepatitis (NASH).

It will consist of 2 phases:

  • Randomized Double-Blind Phase
  • Open Label Phase (optional)

Trial Website: 

Are you Eligible? (Inclusion Criteria)

Inclusion Criteria:

  • Adults with chronic liver disease due to NASH defined as macrovesicular steatosis involving > 5% of hepatocytes on a liver biopsy with associated lobular inflammation
  • Stage 3-4 fibrosis by Ishak score on a liver biopsy
  • Exclusion of other causes of liver disease including viral hepatitis and alcoholic liver disease
  • Must have aspartate aminotransferase (AST) and alanine aminotransferase (ALT) ≤ 10 x Central Laboratory Upper Limit of Normal (clULN)
  • Must have serum creatinine < 2.0 mg/dL
  • A negative serum pregnancy test is required for females of childbearing potential
  • All sexually active females of childbearing potential must agree to use a protocol recommended method of contraception during intercourse throughout the study and for 90 days following the last dose of study medication
  • Lactating females must agree to discontinue nursing before starting study treatment
  • Males must refrain from sperm donation from Day 0 throughout the study period and for a period of 90 days following the last dose of study drug

Exclusion Criteria:

  • Pregnant or breast feeding
  • Cirrhosis of the liver
  • Any history of hepatic decompensation including ascites, hepatic encephalopathy or variceal bleeding
  • Weight reduction surgery in the past 5 years
  • Positive for hepatitis C virus (HCV) RNA
  • Positive for HBsAg
  • Alcohol consumption greater than 21oz/week for males or 14oz/week for females
  • Positive urine screen for amphetamines, cocaine or opiates (i.e. heroin, morphine) at screening.
  • Clinically significant cardiac disease
  • History of malignancy, other than non-melanomatous skin cancer, within 5 years prior to screening
  • Major surgical procedure within 30 days prior to screening or the presence of an open wound
  • Known hypersensitivity to the investigation product or any of its formulation excipients
  • History of bleeding diathesis within 6 months of screening
  • Unavailable for follow-up assessment or concern for individual's compliance with the protocol procedures;
  • Participation in an investigational trial of a drug or device within 30 days prior to screening
  • BMI < 18 kg/m^2

Specialty Area(s)

Trial Location

New York, NY 10032
United States