Clinical trial Recruiting at 4 sites Phase 3 Interventional Ages 18 to 75

ALN-CIDEB in adults with MASLD to see if it helps the liver

Official title: A Phase 3, Randomized, Double-blind, Placebo-controlled Trial of ALN-CIDEB in Adults With Metabolic Dysfunction-Associated Steatotic Liver Disease (MASLD)

Run by Regeneron Pharmaceuticals · NCT07854782 · Data updated 2026-11-12

This study tests whether ALN-CIDEB can help adults with MASLD and its liver damage compared to placebo.

More MASLD trials

Quick facts

PhasePhase 3
Study typeInterventional
Ages18 Years to 75 Years
SexAll
Enrollment1500 (estimated)
SponsorRegeneron Pharmaceuticals
Industry-sponsored
Locations4 sites (Miami, Florida and 3 other locations)
StatusRecruiting
StartedOctober 28, 2026
Main results expectedMarch 3, 2029
Study endsMarch 3, 2029
Registry record updatedNovember 5, 2026
Trial IDNCT07854782 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with MASLD and a liver stiffness measurement between 6 and 20 kPa who do not have other significant liver diseases and who have no recent or planned GLP-1 receptor agonist or related therapies during the treatment period.

Probably not a fit

Patients with other liver diseases, very high liver stiffness outside the specified range, a history of liver transplantation, or recent drug-induced liver injury may not benefit from this therapy.

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

What this trial studies

This Phase 3 interventional study evaluates ALN-CIDEB versus placebo in adults diagnosed with MASLD, a fatty liver condition that can lead to scarring and inflammation. The trial will assess safety and how well the drug affects liver fat, liver injury markers, and fibrosis progression. Participants will receive the study drug or placebo over a defined treatment period, with monitoring to understand who may respond best and why. Enrollment requires specific liver stiffness measurements and excludes other serious liver diseases or recent drug-induced liver injury. The study helps researchers understand the drug's effects on the liver and potential differences in response among individuals.

Why it matters

Potential benefit: If successful, participants may experience improvements in liver fat, injury, and scarring, potentially slowing MASLD progression.

How similar studies have gone: Prior studies in similar liver disease targets have shown variable responses; this trial is evaluating ALN-CIDEB specifically in MASLD/MASH patients with rigorous safety and efficacy endpoints.

Who can join: the full rules

Show full inclusion / exclusion criteria
Key Inclusion Criteria:

1. Has a clinical diagnosis of MASLD, as defined in the protocol
2. Has a liver stiffness measurement between 6 and 20 kilopascals (kPa), as measured by a FibroScan® scan during screening or within approximately 3 months of screening, as defined in the protocol

Key Exclusion Criteria:

1. Has a known chronic liver disease other than MASLD, as determined by the investigator, as defined in the protocol
2. Has prior or current suspected or known drug-induced liver injury within approximately 1 year prior to screening
3. Has a history of liver transplantation, current placement on a liver transplant list, or Model for End-Stage Liver Disease (MELD) score \>12
4. Has a known history of alcohol or other substance abuse within the last year or at any time during screening based on investigator's discretion
5. Has prior, current, or planned future use (during the treatment period) of a GLP-1 receptor agonist-based therapy or any medication approved for the treatment of MASH (eg, resmetirom) unless used at a generally stable dose and regimen since at least 3 months prior to screening visit and throughout the screening period with no change to the dose or regimen anticipated during the treatment period, as defined in the protocol
6. Has evidence of uncontrolled human immunodeficiency virus (HIV) infection, hepatitis B virus (HBV) infection, or hepatitis C virus (HCV) infection during screening, as defined in the protocol

NOTE: Other Protocol-defined Inclusion/Exclusion Criteria Apply

Where it's running

  • Med Research of Florida, LLC
    Miami, Florida, United States
    Recruiting
  • Tandem Clinical Research
    Marrero, Louisiana, United States
    Recruiting
  • Tandem Clinical Research
    Metairie, Louisiana, United States
    Recruiting
  • Advanced Medical Trials
    Georgetown, Texas, United States
    Recruiting

Study contacts

Similar studies

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

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.