Skip to main content
OpenTrials
Not yet recruiting

NCT Number: NCT07797101

Body-weight Reduction Effect on Portal Hypertension in Compensated Cirrhosis

Obesity and metabolic abnormalities accelerate decompensation in compensated cirrhosis, driven by clinically significant portal hypertension (CSPH, HVPG≥10 mmHg). Lifestyle-induced weight loss can lower portal pressure, but pharmacological options are limited. Mazdutide, a dual GLP-1/glucagon receptor agonist, has proven weight-loss and glycaemic benefits, yet its safety and efficacy in cirrhosis with portal hypertension are unknown. This investigator-initiated, single-arm, open-label, exploratory trial evaluates whether mazdutide can safely reduce portal pressure in overweight patients with compensated cirrhosis and CSPH.

The main questions it aims to answer are:

Does 16-week mazdutide treatment reduce HVPG (percentage change from baseline)? What adverse events occur, and is the drug tolerated?

Participants will:

Receive mazdutide SC injection once weekly for 16 weeks, titrated from 2 mg to 4 mg to 6 mg (if tolerated), with dose adjustment for intolerance.

Undergo HVPG at baseline and week 16 (primary endpoint). Have FibroScan® (liver/spleen stiffness, CAP) at baseline and weeks 4, 8, 12, 16.

Provide blood samples for liver, renal, glucose, lipid, and coagulation tests at each visit.

Undergo body composition, handgrip strength, and nutritional assessments to monitor muscle mass.

Attend clinic visits every 4 weeks during treatment and one follow-up visit 4 weeks post-treatment.

Key eligibility: Adults 18-75 with compensated cirrhosis (viral, MASLD, or alcohol-related), HVPG≥10 mmHg, BMI≥28 or ≥26 with comorbidities, stable weight, and stable carvedilol/propranolol if used. Exclude prior decompensation, HCC, CTP≥B8, eGFR<60, mazdutide contraindications, active infection, uncontrolled hepatitis, portal vein thrombosis, etc.

Endpoints: Primary - % change in HVPG. Secondary - HVPG response (≥10% decrease or <10 mmHg), decompensation events, treatment discontinuation due to AEs. Exploratory - changes in stiffness, liver fat, metabolic parameters, body composition, nutrition.

Safety: AEs (CTCAE v5.0), labs, vitals, with special monitoring for GI symptoms, dehydration, renal function, hepatic encephalopathy, muscle loss, pancreatitis, and gallbladder events.

Sample size and analysis: 50 patients. Primary endpoint analysed by paired t-test or Wilcoxon (α=0.05, two-sided) in FAS and PPS. Secondary endpoints mainly descriptive; key secondary tested for support. Subgroup analyses planned if feasible.

Study duration: 20 weeks (2-week screening, 16-week treatment, 4-week follow-up). Conducted at Second Affiliated Hospital of Chongqing Medical University, China. Ethics approved, informed consent required. This study will provide first evidence on mazdutide for portal hypertension in overweight cirrhosis.

Not yet recruiting

Trial opening soon.

Get Notified

Key information

Conditions

Cirrhosis Digestive System Diseases Fatty Liver Fatty Liver Disease Fibrosis GLP-1 Hypertension, Portal Liver Diseases Non-alcoholic Fatty Liver Disease Pathologic Processes Pathological Conditions, Signs and Symptoms Portal Hypertension

Age range

18 year–75 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Aged 18 to 75 years (inclusive), male or female.
  • Documented etiology of chronic liver disease, limited to chronic hepatitis B, chronic hepatitis C, metabolic dysfunction-associated steatotic liver disease (MASLD), or alcohol-related liver disease.
  • Cirrhosis confirmed by imaging (ultrasound, CT, or MRI), or pathology showing F3/F4 fibrosis, or liver stiffness measurement (LSM) ≥15 kPa by vibration-controlled transient elastography (VCTE).
  • Hepatic venous pressure gradient (HVPG) ≥10 mmHg.
  • Body mass index (BMI) ≥28 kg/m², or BMI ≥26 kg/m² with at least one weight-related comorbidity (e.g., hyperglycemia, hypertension, dyslipidemia, fatty liver, obstructive sleep apnea syndrome).
  • Stable body weight over the past 6 months, defined as weight fluctuation <3 kg.
  • For patients with gastroesophageal varices requiring carvedilol or propranolol, the dose must have been stable for at least 3 months with no planned dose adjustments during the trial.
  • Voluntarily signed informed consent form.

Exclusion criteria

  • Concurrent hepatocellular carcinoma or other malignancies (excluding cured basal cell carcinoma of the skin).
  • Prior history of clinically significant decompensation events (grade 2/3 ascites, overt hepatic encephalopathy, or gastroesophageal variceal bleeding).
  • Progressive jaundice during the screening period.
  • Hepatic impairment defined as Child-Turcotte-Pugh (CTP) score ≥B8 at screening.
  • Moderate to severe renal impairment (eGFR <60 mL/min) or current renal replacement therapy.
  • Contraindications to mazdutide: known allergy, personal or family history of medullary thyroid carcinoma, or multiple endocrine neoplasia syndrome type 2.
  • Previous or current use of other weight-loss interventions (e.g., bariatric surgery, endoscopic bariatric procedures, other weight-loss drugs).
  • Participation in another interventional clinical trial within 3 months prior to screening, or previous treatment with mazdutide.
  • Active infection at screening.
  • For alcohol-related cirrhosis: alcohol abstinence <6 months or ongoing alcohol consumption. For viral cirrhosis (hepatitis B/C): failure to achieve virologic suppression (HBV-DNA <100 IU/mL for hepatitis B; for hepatitis C, HCV-RNA below the lower limit of detection after >12 weeks of antiviral therapy).
  • Prior portal-systemic shunt surgery (e.g., splenectomy).
  • Previous orthotopic liver transplantation.
  • Known portal vein thrombosis.
  • Contraindications to trial assessments, e.g., inability to undergo HVPG measurement.
  • Pregnancy or breastfeeding, or unwillingness to use investigator-approved contraception during the study and for 6 months after the study end.
  • Psychiatric or cognitive disorders that interfere with study compliance.
  • Any other condition judged by the investigator to make the participant unsuitable for participation.

Treatment and study plan

Mazdutide injection

Drug

Mazdutide injection is a sterile, clear to almost colorless liquid formulated for subcutaneous administration. It is supplied in three fixed-dose strengths for this study: 2 mg/0.5 mL, 4 mg/0.5 mL, and 6 mg/0.5 mL. Participants assigned to this arm receive once-weekly subcutaneous injections over a 16-week active treatment period. The regimen begins with a forced dose-titration phase: 2 mg weekly for the first 4 weeks, followed by 4 mg weekly for the next 4 weeks, and then 6 mg weekly for the final 8 weeks, provided the preceding dose is tolerated. In cases of treatment-emergent adverse events (CTCAE grade ≥2 or intolerable grade 1), the investigator may temporarily withhold the dose, step down to the next lower dose level (6 mg→4 mg→2 mg), or permanently discontinue the drug. After symptom resolution, gradual re-escalation (2 mg→4 mg→6 mg) may be attempted at the investigator's discretion.

Primary outcomes

  1. Percentage Change in Hepatic Venous Pressure Gradient (HVPG) from Baseline

    Time frame: Baseline (screening, Day -14 to -1) to Week 16 (End of Treatment, Day 112 ± 3 days)

    Percentage change in HVPG (measured in mmHg) from baseline to week 16. HVPG is calculated as the difference between wedged hepatic venous pressure (WHVP) and free hepatic venous pressure (FHVP), measured via hepatic vein catheterization under fasting conditions. A negative percentage change indicates a reduction in portal pressure. HVPG measurements will be performed in triplicate through the same hepatic vein, preferably in the morning, at baseline (screening period) and at week 16 (end-of-treatment visit, Day 112). All measurements follow a standardized procedure by experienced operators (≥25 HVPG measurements annually).

Secondary outcomes

  1. Proportion of Participants Achieving HVPG Response

    Time frame: Baseline to Week 16 (End of Treatment, Day 112 ± 3 days)

    Proportion of participants with a reduction in HVPG of ≥10% from baseline, or a reduction to an absolute value of <10 mmHg at week 16. HVPG is measured via hepatic vein catheterization in triplicate under fasting conditions.

  2. Incidence of Hepatic Decompensation Events

    Time frame: Baseline up to Week 16 (End of Treatment)

    Number of participants experiencing any first or recurrent decompensation event during the treatment period, including: overt ascites (requiring paracentesis or diuretic escalation), overt hepatic encephalopathy (West Haven grade ≥2), or gastroesophageal variceal bleeding (confirmed by endoscopy or imaging).

  3. Treatment Discontinuation Due to Adverse Events

    Time frame: Day 1 (First dose) to Week 16 (End of Treatment)

    Number of participants who permanently discontinue study drug due to any adverse event (AE) during the 16-week treatment period, regardless of causality. Reasons for discontinuation will be summarized by system organ class and preferred term.

  4. Change in Liver and Spleen Stiffness

    Time frame: Baseline to Week 16 (End of Treatment, Day 112 ± 3 days)

    Absolute change (kPa) and percentage change in liver stiffness measurement (LSM) and spleen stiffness measurement (SSM) from baseline to week 16, assessed by vibration-controlled transient elastography (VCTE™, FibroScan®) under fasting conditions.

Other outcomes

  1. Liver stiffness measured by VCTE

    Time frame: Baseline to weeks 4, 8, 12, and 16 (Days 28, 56, 84, 112; ±3 days)

    Change from baseline in liver stiffness assessed by Vibration-Controlled Transient Elastography (VCTE). Unit of measure: kPa

  2. Spleen Stiffness measured by VCTE

    Time frame: Baseline to weeks 4, 8, 12, and 16 (Days 28, 56, 84, 112; ±3 days)

    Change from baseline in spleen stiffness assessed by Vibration-Controlled Transient Elastography (VCTE). Unit of measure: kPa.

  3. Liver Fat Content measured by Controlled Attenuation Parameter (CAP)

    Time frame: Baseline to weeks 4, 8, 12, and 16 (Days 28, 56, 84, 112; ±3 days)

    Change from baseline in liver fat content assessed by CAP. Unit of measure: dB/m.

  4. Liver Function Tests (ALT, AST, Bilirubin, Albumin)

    Time frame: Baseline to weeks 4, 8, 12, and 16 (Days 28, 56, 84, 112; ±3 days)

    Change from baseline in serum levels of alanine aminotransferase (ALT), aspartate aminotransferase (AST), total and direct bilirubin, and albumin. These assessments have different units (ALT/AST in U/L; bilirubin in μmol/L or mg/dL; albumin in g/L) and will be reported individually without aggregation into a composite value.

  5. Coagulation Function (PT, INR, APTT)

    Time frame: Baseline to weeks 4, 8, 12, and 16 (Days 28, 56, 84, 112; ±3 days)

    Change from baseline in prothrombin time (PT, in seconds), international normalized ratio (INR, dimensionless ratio), and activated partial thromboplastin time (APTT, in seconds). These assessments with different units will be reported separately.

  6. Renal Function (eGFR)

    Time frame: Baseline to weeks 4, 8, 12, and 16 (Days 28, 56, 84, 112; ±3 days)

    Change from baseline in estimated glomerular filtration rate calculated using the CKD-EPI or MDRD formula. Unit of measure: mL/min/1.73m².

  7. Body Composition Indices (BMI, Waist-to-Hip Ratio, Waist-to-Height Ratio)

    Time frame: Baseline to weeks 4, 8, 12, and 16 (Days 28, 56, 84, 112; ±3 days)

    Change from baseline in body composition indices. Note on aggregation: Weight (kg) and height (m) will be combined to calculate BMI (kg/m²); waist circumference (cm) and hip circumference (cm) will be combined to calculate waist-to-hip ratio and waist-to-height ratio (both expressed as dimensionless ratios). All derived indices will be reported individually.

  8. Fasting Glucose and Lipid Profile

    Time frame: Baseline to weeks 4, 8, 12, and 16 (Days 28, 56, 84, 112; ±3 days)

    Change from baseline in fasting plasma glucose, total cholesterol, triglycerides, LDL-C, and HDL-C. All assessments share the same unit of measure (mmol/L or mg/dL, depending on local laboratory standard) and will be reported as separate numerical values.

  9. Uric Acid

    Time frame: Baseline to weeks 4, 8, 12, and 16 (Days 28, 56, 84, 112; ±3 days)

    Change from baseline in serum uric acid. Unit of measure: μmol/L or mg/dL (as per local laboratory).

  10. Urine Protein

    Time frame: Baseline to weeks 4, 8, 12, and 16 (Days 28, 56, 84, 112; ±3 days)

    Change from baseline in urine protein concentration. Unit of measure: mg/dL or g/24h (as per collection method).

Sponsors and collaborators

Lead sponsor

The Second Affiliated Hospital of Chongqing Medical University

Other

Registry information

Official study title

Efficacy and Safety of Mazdutide Injection for the Treatment of Overweight Patients With Compensated Cirrhosis and Clinically Significant Portal Hypertension

Acronym: B-REACH

Important dates

Study start
2026
Primary completion
2029
Study completion
2029
First posted
Sep 1, 2026
Registry last updated
Sep 1, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.