DRUG
Tirzepatide
Administered SC
Status
Recruiting
Phase
Phase 3
Enrollment
4,500
Locations
563
Results
Not posted
Publications
0
Study summary
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.
Interventions
DRUG
Administered SC
DRUG
Administered SC
DRUG
Administered SC
Timeline
First posted
Sep 10, 2025
Study start
Oct 15, 2025
Primary completion
Aug 2030
Study completion
Aug 2032
Results posted
Not reported
Registry updated
Jul 17, 2026
Outcomes
Time to First Occurrence of Any Component of the Composite Endpoint for Major Adverse Liver Outcomes (MALO)
Time frame · Baseline up to Study Completion (about 224 weeks)
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
Change from Baseline in Enhanced Liver Fibrosis (ELF) Score
Time frame · Baseline, Week 104
Change from Baseline in Vibration-Controlled Transient Elastography Liver Stiffness Measurement (VCTE LSM)
Time frame · Baseline, Week 104
Percent Change from Baseline in Liver Fat Content (LFC)
Time frame · Baseline, Week 104
Time to Occurrence of Progression to Cirrhosis
Time frame · Baseline up to Study Completion (about 224 weeks)
Change from Baseline in Aspartate Aminotransferase (AST)
Time frame · Baseline, Study Completion (about 224 weeks)
Change from Baseline in Alanine Aminotransferase (ALT)
Time frame · Baseline, Study Completion (about 224 weeks)
Change from Baseline in Body Weight
Time frame · Baseline, Study Completion (about 224 weeks)
Change from Baseline in Non-Alcoholic Steatohepatitis-CHECK Score (NASH-CHECK)
Time frame · Baseline, Week 104
Time to First Occurrence of Any Component Event of the Composite Endpoint of Major Adverse Cardiovascular Events (MACE-3)
Time frame · Baseline up to Study Completion (about 224 weeks)
MACE-3 composite endpoint includes nonfatal myocardial infarction, nonfatal stroke, cardiovascular death
Eligibility
Inclusion Criteria: * 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 Exclusion Criteria: * 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 * Have a hemoglobin A1c (HbA1c) greater than 10% * Have type 1 diabetes
Study locations
Argentina · Australia · Austria · Belgium · Brazil · Bulgaria · Canada · China · Czechia · France · Germany · Hong Kong · Hungary · India · Israel · Italy · Japan · Mexico · Netherlands · New Zealand · Norway · Poland · Portugal · Puerto Rico · Romania · South Korea · Spain · Sweden · Switzerland · Taiwan · Turkey (Türkiye) · Ukraine · United Kingdom · United States. Showing up to 24 locations stored in the fast local snapshot.
MFA Clinical Research
Tuscaloosa, Alabama, United States
The Institute for Liver Health II dba Arizona Clinical Trials - Chandler
Chandler, Arizona, United States
Spectrum Research Institute
Gilbert, Arizona, United States
The Institute for Liver Health II dba Arizona Liver Health - Peoria
Peoria, Arizona, United States
Epic Medical Research-Sun City
Sun City, Arizona, United States
The Institute for Liver Health II dba Arizona Clinical Trials - Tucson
Tucson, Arizona, United States
Del Sol Research Management, LLC
Tucson, Arizona, United States
Arkansas Gastroenterology - North Little Rock
North Little Rock, Arkansas, United States
San Fernando Valley Health Institute
Canoga Park, California, United States
Ark Clinical Research - Fountain Valley
Fountain Valley, California, United States
Fresno Clinical Research Center
Fresno, California, United States
UCSD - Altman Clinical and Translational Research Institute (ACTRI)
La Jolla, California, United States
Orange County Research Center
Lake Forest, California, United States
Om Research LLC
Lancaster, California, United States
Ark Clinical Research
Long Beach, California, United States
Los Angeles Institute for Metabolic Research
Los Angeles, California, United States
United Medical Doctors - Murrieta
Murrieta, California, United States
Knowledge Research Center
Orange, California, United States
California Liver Research Center
Pasadena, California, United States
Artemis Institute for Clinical Research
Riverside, California, United States
Medical Associates Research Group
San Diego, California, United States
Quest Clinical Research
San Francisco, California, United States
University of Colorado Anschutz Medical Campus
Aurora, Colorado, United States
South Denver Gastroenterology
Englewood, Colorado, United States
Publications
No PMID-linked publications were present in this registry snapshot.
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