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A Study to Test Whether Survodutide Helps People Living With Obesity or Overweight and With a Confirmed or Presumed Liver Disease Called Non-alcoholic Steatohepatitis (NASH) to Reduce Liver Fat and to Lose Weight (SYNCHRONIZE-MASLD)
Multicentre, Randomised, Double-blind, Placebo-controlled, 48-week, Phase III Trial to Evaluate the Efficacy and Safety of Survodutide Administered Subcutaneously in Participants With Overweight or Obesity and Presumed or Confirmed Nonalcoholic Steatohepatitis (NASH)
Lead sponsor
Asset
Survodutide
Subcutaneous · GLP-1 / glucagon dual
Listed sites
37
Recruiting sites
—
Enrollment
218
actual
Study population
MASH / NAFLD / liver fibrosis, Obesity / overweight
Key I/E criteria
•BMI ≥30•HbA1c ≥6.5%
Primary endpoints
•MRI-PDFF ≥30% responders•Body weight, % change
Footprint
Where this trial recruits
Site locations as reported to ClinicalTrials.gov. Site count is not enrollment count; per-site enrollment is not available from source.
Identifiers
Registered as
Timeline
Milestones
Assets
Investigational agents
Study populations
Who this study enrolls
Eligibility
Who can enroll
Eligibility criteria
Key inclusion criteria:
Key exclusion criteria:
Further exclusion criteria apply.
Endpoints (15)
What's being measured
Protocol endpoints and posted registry outcome measures, grouped into outcome categories. Composite endpoints show their component event types. Standard codes (LOINC, SNOMED CT) are shown where available.
Coverage by outcome category
Weight & body composition
3 endpointsRelative change (%) in body weight [kg] from baseline to Week 48
Time frame:at baseline, at week 48
Body weight, % change
percent change from baseline, improvement
Absolute change from baseline to Week 48 in waist circumference [cm]
Time frame:at baseline, at week 48
Waist circumference, change
change from baseline, improvement
Relative change from baseline to Week 48 in waist circumference [cm]
Time frame:at baseline, at week 48
Waist circumference, change
percent change from baseline, improvement
Glycemic / diabetes
2 endpointsAbsolute change from baseline to Week 48 in Homeostasis Model Assessment -Insulin Resistance (HOMA-IR) (Fasting Plasma Insulin (FPI) [mlU/L] · Fasting Plasma Glucose (FPG) [mmol/L]/22.5)
Time frame:at baseline, at week 48
HOMA-IR (insulin sensitivity)
change from baseline, improvement
Relative change from baseline to Week 48 in HOMA-IR (FPI [mlU/L] · FPG [mmol/L]/22.5)
Time frame:at baseline, at week 48
HOMA-IR (insulin sensitivity)
percent change from baseline, improvement
MASH / liver
10 endpointsRelative reduction in liver fat content of at least 30% from baseline to Week 48 (yes/no) assessed by magnetic resonance imaging proton density fat fraction (MRI-PDFF) [%]
Time frame:at baseline, at week 48
MRI-PDFF ≥30% responders
threshold achievement, improvement
Absolute change from baseline to Week 48 in liver fat content assessed by MRI-PDFF [%]
Time frame:at baseline, at week 48
Liver fat content, change
change from baseline, improvement
Relative change (%) from baseline to Week 48 in liver fat content assessed by MRI-PDFF [%]
Time frame:at baseline, at week 48
MRI-PDFF, % change
percent change from baseline, improvement
Reduction from baseline to Week 48 in Iron corrected T1 (cT1) [ms] levels of ≥80 ms (yes/no)
Time frame:at baseline, at week 48
threshold achievement, improvement
Absolute change from baseline to Week 48 in alanine amino transferase (ALT) [U/L] levels
Time frame:at baseline, at week 48
ALT, change
change from baseline, improvement
LOINC 1742-6
Relative change from baseline to Week 48 in alanine amino transferase (ALT) [U/L] levels
Time frame:at baseline, at week 48
ALT, change
percent change from baseline, improvement
LOINC 1742-6
Absolute change from baseline to Week 48 in liver stiffness [kPa] assessed by magnetic resonance elastography (MRE)
Time frame:at baseline, at week 48
Liver stiffness (VCTE), change
change from baseline, improvement
Relative change from baseline to Week 48 in liver stiffness [kPa] assessed by magnetic resonance elastography (MRE)
Time frame:at baseline, at week 48
percent change from baseline, improvement
Absolute change in liver volume [mL] from baseline to Week 48 measured using MRI
Time frame:at baseline, at week 48
change from baseline, improvement
Relative change in liver volume [mL] from baseline to Week 48 measured using MRI
Time frame:at baseline, at week 48
percent change from baseline, improvement
Publications (1)
Bibliography
Records linked to this trial through ClinicalTrials.gov references, PubMed NCT search, and curated study seeds. 'Canonical' marks design/result papers; others are registry references or candidates.
Registry references + supporting bibliography
- Alimentary pharmacology & therapeutics2025 May (month)PMID39967239doi:10.1111/apt.70020via clinicaltrials gov reference derived + pubmed nct search
Provenance
Sources
Trial facts come from public ClinicalTrials.gov records. Endpoint categories are Delfa's classification of those records, not a ClinicalTrials.gov field. All figures reflect the July 1, 2026 snapshot.