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
| Phase | Phase 2 |
|---|---|
| Study type | Interventional |
| Ages | 30 Years and up |
| Sex | All |
| Enrollment | 180 (estimated) |
| Sponsor | Rivus Pharmaceuticals, Inc. Industry-sponsored |
| Drugs / interventions | methotrexate |
| Locations | 31 sites (Chandler, Arizona and 30 other locations) |
| Status | Recruiting |
| Started | February 13, 2026 |
| Main results expected | February 2027 |
| Study ends | February 2028 |
| Registry record updated | May 18, 2026 |
| Trial ID | NCT07491458 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
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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
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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
- Study coordinator: Clinical Operations Lead
- Email: jsoto@rivuspharma.com
- Phone: 6173887757
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.