Clinical trial Recruiting at 31 sites Phase 2 Interventional Ages 30 and up

HU6 compared with placebo for adults with MASH

Official title: A Parallel Treatment Group, Phase 2a, Double-blind, 4-arm Trial to Evaluate the Safety, Exposure, and Efficacy of HU6 Compared With Placebo in Male and Female Participants Aged 30 Years or Older With Metabolic Dysfunction-associated Steatohepatitis (MASH)

Run by Rivus Pharmaceuticals, Inc. · NCT07491458 · Data updated 2026-11-12

This study tests whether HU6 is safe and can reduce liver fat in adults with metabolic dysfunction-associated steatohepatitis (MASH).

Quick facts

PhasePhase 2
Study typeInterventional
Ages30 Years and up
SexAll
Enrollment180 (estimated)
SponsorRivus Pharmaceuticals, Inc.
Industry-sponsored
Drugs / interventionsmethotrexate
Locations31 sites (Chandler, Arizona and 30 other locations)
StatusRecruiting
StartedFebruary 13, 2026
Main results expectedFebruary 2027
Study endsFebruary 2028
Registry record updatedMay 18, 2026
Trial IDNCT07491458 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults aged 30 years or older with a diagnosis of MASH and a BMI between 27.0 and 44.0 kg/m2 who meet contraception and other study requirements are the intended participants.

Probably not a fit

People with other liver diseases, recent major cardiovascular events, a recent history of malignancy, prior cholecystectomy or other conditions that alter drug absorption/metabolism, or other listed exclusions are unlikely to benefit from participating.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This is a randomized, double-blind, placebo-controlled, multicenter Phase 2 trial with a two-part design that includes a blinded intervention period and an optional open-label extension for those who complete the blinded period. The trial compares HU6 to placebo and monitors safety, pharmacokinetics, and changes in liver fat and other MASH-related measures. Participants undergo screening, a blinded treatment phase, an end-of-treatment visit (or early termination), a safety follow-up, and two long-term follow-up visits. The multicenter conduct is limited to three clinical sites in Arizona.

Why it matters

Potential benefit: If successful, HU6 could reduce liver fat and improve liver-related outcomes, offering a new treatment option for adults with MASH.

How similar studies have gone: Other investigational agents targeting liver fat and inflammation have shown promising Phase 2 results, but HU6 is a novel compound with limited prior clinical data.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Male and female ≥30 years of age at time of signing the informed consent.
* Diagnosed with metabolic dysfunction-associated steatohepatitis (MASH)
* Women of childbearing potential must not be pregnant or breastfeeding and must use and agree to continue to use a highly effective contraceptive method throughout time on study.
* Body Mass Index (BMI) ≥27.0 kg/m2 to ≤44 kg/m2

Exclusion Criteria:

* Have acute or chronic hepatitis, signs, and symptoms of any other liver disease (eg, Wilson's disease) other than MASH
* Cholecystectomy or any other surgical or medical condition or history that may potentially alter the absorption, metabolism, or excretion of study treatment.
* History (including any family history) of malignant hyperthermia.
* History of malignancy within 5 years (except cutaneous basal or squamous cell carcinoma, carcinoma-in-situ, or low-grade prostate cancer).
* History of the following cardiovascular conditions within 3 months prior to randomization: acute myocardial infarction, cerebrovascular accident (stroke), unstable angina, hospitalization due to congestive heart failure (CHF), or acute CHF.
* Significant and unstable lung disease (chronic obstructive pulmonary disease \[COPD\], emphysema, pulmonary fibrosis, or asthma) requiring oxygen or chronic daily medication. Note that mild, stable COPD and asthma on inhalers are allowed.
* Monogenetic diabetes or type 1 diabetes.
* History of ketoacidosis or hyperosmolar state requiring hospitalization in the 6 months prior to Screening.
* History of agranulocytosis.
* History of or active evidence of ophthalmological conditions
* Untreated, uncontrolled, or unstable hypertension
* Use of any of the following medications/therapies: Vitamin E: use of ursodiol or high-dose vitamin E (\>400 IU/day) for a duration of \>1 month within 6 months or started high dose vitamin E for any duration within 3 months prior to screening
* Within 3 months prior to screening or plan to use prior to coming off study drug: resmetirom (Rezdiffra®), GLP 1 agonists and gastric inhibitory polypeptide (GIP)/GLP-1 agonists, Weight loss medications/therapies including: herbal preparation, over the counter (OTC) drug, mail order or prescription drug, Oral antidiabetic medications/therapies including: insulin, meglitinides, thiazolidinediones. Prescription or OTC stimulants. Recent or current use of obeticholic acid (Ocaliva®), systemic corticosteroids, methotrexate, tamoxifen, amiodarone, or long-term use of tetracyclines. Warfarin, heparin, factor Xa inhibitors due to risk of bleeding, Medications with high risk of idiosyncratic drug-induced neutropenia (IDIN) or agranulocytosis.
* History of hepatitis or human immunodeficiency virus (HIV1 \& HIV2)
* Intolerance to MRI or with conditions contraindicated for MRI procedures
* Participation in another clinical trial at the time of screening or exposure to any investigational product, including topical agents, within 28 days prior to starting study treatment
* Additional inclusion/exclusion criteria could apply

Where it's running

  • Arizona Liver Health - Chandler
    Chandler, Arizona, United States
    Recruiting
  • Arizona Liver Health - Peoria
    Peoria, Arizona, United States
    Recruiting
  • Arizona Liver Health - Tucson
    Tucson, Arizona, United States
    Recruiting
  • Baptist Health Center for Clinical Research
    Little Rock, Arkansas, United States
    Recruiting
  • National Institute of Clinical Research
    Garden Grove, California, United States
    Recruiting
  • Catalina Research Institute
    Montclair, California, United States
    Recruiting
Show 25 more locations
  • Knowledge Research Center
    Orange, California, United States
    Recruiting
  • Charter Research LLC - Orlando
    Orlando, Florida, United States
    Recruiting
  • Charter Research LLC - Chicago
    Chicago, Illinois, United States
    Recruiting
  • Delta Research Partners of Bastrop, LLC
    Bastrop, Louisiana, United States
    Recruiting
  • Delta Research Partners of West Monroe, LLC
    West Monroe, Louisiana, United States
    Recruiting
  • Clinical Research Institute of Michigan
    Clinton Township, Michigan, United States
    Recruiting
  • Nucleus Network Minneapolis
    Saint Paul, Minnesota, United States
    Recruiting
  • Kansas City Research Institute
    Kansas City, Missouri, United States
    Recruiting
  • KAD Clinical Research
    St Louis, Missouri, United States
    Recruiting
  • Jubilee Clinical Research, LLC.
    Las Vegas, Nevada, United States
    Recruiting
  • Coastal Research Institute
    Fayetteville, North Carolina, United States
    Recruiting
  • Clinical Research Institute of Ohio, LLC (CRIOH)
    Westlake, Ohio, United States
    Recruiting
  • Tekton Research - Yukon
    Yukon, Oklahoma, United States
    Recruiting
  • Innovative Clinical Research, LLC
    Clarksville, Tennessee, United States
    Recruiting
  • IMA Clinical Research (Austin)
    Austin, Texas, United States
    Recruiting
  • Pinnacle Clinical Research - Austin
    Austin, Texas, United States
    Recruiting
  • Bellaire Clinical Research, LLC
    Bellaire, Texas, United States
    Recruiting
  • Pinnacle Clinical Research - Corpus Christi
    Corpus Christi, Texas, United States
    Recruiting
  • Pinnacle Clinical Research - Georgetown
    Georgetown, Texas, United States
    Recruiting
  • HRI - Medical Center, LLC
    Houston, Texas, United States
    Recruiting
  • Houston Research Institute
    Houston, Texas, United States
    Recruiting
  • HRI - Pasadena, LLC
    Pasadena, Texas, United States
    Recruiting
  • Quality Research
    San Antonio, Texas, United States
    Recruiting
  • Pinnacle Clinical Research - San Antonio
    San Antonio, Texas, United States
    Recruiting
  • HRI - Sugarland, LLC
    Sugar Land, Texas, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

  • Rezdiffra with diabetes and pioglitazone or dapagliflozin in adults with MASH and F2-F3 fibrosis

    This study tests whether Rezdiffra (resmetirom) can be safely used together with common diabetes medicines in adults with MASH and moderate to advanced liver fibrosis.

    Recruiting at 3 sites Phase 4 Madrigal Pharmaceuticals, Inc. · Chandler, Arizona and 15 other locations · NCT07848191

  • Resmetirom for MASH with HFpEF in adults

    This study tests whether resmetirom can be given safely and show liver-related effects in adults with MASH and heart failure with preserved ejection fraction over 24 weeks.

    Recruiting at 5 sites Phase 1 Madrigal Pharmaceuticals, Inc. · Peoria, Arizona and 4 other locations · NCT07830758

  • MWN105 injection in overweight or obese adults you may join

    This early-phase trial tests whether MWN105 is safe and tolerable in overweight or obese adults in China, using a placebo comparison.

    Recruiting Phase 1 Shanghai Minwei Biotechnology Co., Ltd · Kunming, Yunnan · NCT07803809

  • Resmetirom in children and teens with MASH

    This study tests how safe resmetirom is and how it acts in the body of kids aged 6 to 17 who have MASH with liver fibrosis.

    Recruiting Phase 2 Madrigal Pharmaceuticals, Inc. · Indianapolis, Indiana · NCT07763015

  • Liver Inflammation Index test for MASH in adults with T2DM and MAFLD

    This study tests a Liver Inflammation Index to see if it can identify MASH in adults who have both type 2 diabetes and MAFLD.

    Recruiting at 22 sites The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School · Bengbu, Anhui and 21 other locations · NCT07632677

  • HSK31679 in MASH: a phase 3 test for safety and liver improvement

    This phase 3 trial tests whether HSK31679 helps people with MASH compared to a placebo.

    Recruiting Phase 3 Haisco Pharmaceutical Group Co., Ltd. · Beijing, Beijing Municipality · NCT07581951

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.