About this trial
The main purpose of the SYNERGY-OUTCOMES study is to find out whether retatrutide and tirzepatide can prevent major adverse liver outcomes (MALO) in people with high-risk metabolic dysfunction-associated steatotic liver disease (MASLD). The study will enroll adults who have MASLD based on non-invasive tests (NITs), which indicate they are more likely to develop MALO. Participants will be randomly assigned within a Master Protocol to receive either retatrutide (N1T-MC-RT01), tirzepatide (N1T-MC-TZ01) or placebo. The trial plans to enroll about 4,500 adults and will run for approximately 224 weeks. Participants may have up to approximately 25 to 30 clinic visits throughout the study to monitor their health, complete study procedures, and assess liver function and disease progression.
Once the study is complete, eligible participants may participate in an optional 2-year extension study, in which all participants will receive either retatrutide or tirzepatide, even if they received placebo in the main study.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Have liver fat content ≥8%
Have ELF score of ≥9 and ≤10.8 at screening
Have VCTE LSM ≥10 kilopascal (kPa) and <20 kPa at screening
Disqualifiers
Have any other type of liver disease other than MASLD
Have a body mass index (BMI) <25 kilogram per square meter (kg/m2)
Prior decompensated liver disease (history of esophageal/gastric varices, ascites, hepatic encephalopathy)
Have lost more than 11 pounds within the 3 months prior to screening
Trial design
Parallel
Treatments tested in this trial
Tirzepatide
DrugAdministered SC
Retatrutide
DrugAdministered SC
Placebo
DrugAdministered SC
Treatment groups
Trial outcomes
Primary outcomes
Time to First Occurrence of Any Component of the Composite Endpoint for Major Adverse Liver Outcomes (MALO)
Composite endpoint comprised of progression to cirrhosis, development of large esophageal varices, gastric varices or development of varices needing treatment, development of ascites, development of hepatic encephalopathy, evidence of active or recent variceal hemorrhage, increase in model for end-stage liver disease (MELD) from ≤12 to ≥15, liver transplantation, all-cause mortality
Secondary outcomes
Change from Baseline in Enhanced Liver Fibrosis (ELF) Score
Change from Baseline in Vibration-Controlled Transient Elastography Liver Stiffness Measurement (VCTE LSM)
Percent Change from Baseline in Liver Fat Content (LFC)
Time to Occurrence of Progression to Cirrhosis
Sponsors and contacts
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