Rezdiffra® With Concomitant Therapies Commonly Used to Treat Comorbidities in Adults With MASH and F2-F3 Fibrosis

October 15, 2026 updated by: Madrigal Pharmaceuticals, Inc.

A Phase 4, Open-label, Multi-group Study of Rezdiffra® in Combination With Concomitant Therapies Commonly Used to Treat Comorbidities in Adults With MASH and Moderate to Advanced (F2-F3) Fibrosis, Administered According to Their Approved Labeling

To determine the safety of Rezdiffra (Resmetirom) when administered alongside common prescriptions for Diabetes Metellus (Farxiga/dapagliflozin & Actos/pioglitazone)

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This Phase 4 study will evaluate the safety and tolerability of REZDIFFRA® (resmetirom) when used in combination with concomitant therapies commonly used to treat diabetes in adults with metabolic dysfunction-associated steatohepatitis (MASH) and noncirrhotic, moderate-to-advanced (F2-F3) fibrosis. The concomitant therapies evaluated in this study will include ACTOS®/pioglitazone and FARXIGA®/dapagliflozin. All study medications will be administered according to their approved labeling.

Participants will be assigned to one of six cohorts based on their existing therapy and the concomitant medication being evaluated. In Group A, participants who are receiving a stable dose of pioglitazone or dapagliflozin will initiate resmetirom. In Group B, participants who are receiving a stable dose of REZDIFFRA will initiate pioglitazone or dapagliflozin. In Group C, participants who are not currently receiving either treatment will initiate resmetirom and either pioglitazone or dapagliflozin in a staggered manner, with a 4- to 6-week run-in period between initiation of the first and second medications.

Approximately 25 participants are planned for each of the six cohorts, for a maximum planned enrollment of approximately 150 participants. Following initiation of combination treatment, participants will be followed for 24 weeks, with a safety follow-up visit approximately 4 weeks after completion of treatment.

Safety and tolerability will be characterized through assessment of treatment-emergent adverse events, physical examinations, vital signs, clinical laboratory parameters, treatment discontinuations, and dose interruptions or reductions. Exploratory assessments will evaluate changes in liver fat by MRI-PDFF, noninvasive measures of hepatic steatosis and fibrosis, and biomarkers related to MASH disease state, insulin resistance, glucose homeostasis, body weight, and liver function.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
150

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 4

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • United States
    • Arizona
      • Chandler, Arizona, United States, 85224
        • Not yet recruiting
        • Arizona Liver Health - Chandler
    • Arkansas
      • North Little Rock, Arkansas, United States, 72117
        • Not yet recruiting
        • Arkansas Gastroenterology
    • California
      • Coronado, California, United States, 92118
        • Not yet recruiting
        • Southern California Research Center
      • Rialto, California, United States, 37411
        • Not yet recruiting
        • Inland Empire Liver Foundation
    • Florida
      • Lakewood Rch, Florida, United States, 34211
        • Not yet recruiting
        • Florida Research Institute
      • Miami, Florida, United States, 33176
        • Recruiting
        • Gastro Health PLLC Galloway
      • Miami, Florida, United States, 33186
        • Not yet recruiting
        • Med Research of Florida, LLC
    • Louisiana
      • Lake Charles, Louisiana, United States, 70605
        • Recruiting
        • Elevate Clinical Research
    • North Carolina
      • Morehead City, North Carolina, United States, 28557
        • Not yet recruiting
        • Centricity Research - Morehead City - Multispecialty - PPDS
    • Ohio
      • Cincinnati, Ohio, United States, 45219
        • Recruiting
        • Gastro Health Research
    • Tennessee
      • Chattanooga, Tennessee, United States, 37411
        • Not yet recruiting
        • University Diabetes and Endocrine Consultants
    • Texas
      • Arlington, Texas, United States, 76012-3216
        • Not yet recruiting
        • Texas Clinical Research Institute
      • Corpus Christi, Texas, United States, 78414
        • Not yet recruiting
        • South Texas Endocrinology & Metabolism Center
      • Dallas, Texas, United States, 75234
        • Not yet recruiting
        • The Liver Institute at Methodist Dallas Medical Center
      • McAllen, Texas, United States, 78504
        • Not yet recruiting
        • Elevate Clinical Research - McAllen - PPDS
      • San Antonio, Texas, United States, 78229
        • Not yet recruiting
        • Diabetes and Glandular Disease Clinic, PA

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria

All Subjects:

  1. Willing to participate in the study and provide written informed consent.

  2. Meets all requirements per REZDIFFRA Prescribing Information, in the opinion of the PI.

  3. Male and female adults ≥18 of age at time of screening.

  4. Evidence of hepatic steatosis consistent with MASH demonstrated by an MRI-PDFF fat fraction >5% obtained during second screening period.

  5. Evidence of moderate-to-advanced fibrosis (F2-F3) without cirrhosis.

  6. Stable medical conditions and background medications (non-concomitant medications as defined in this protocol) per PI judgement.

  7. Female subjects of reproductive potential are eligible if they have a negative serum pregnancy test (beta human chorionic gonadotropin), are not breastfeeding, and do not plan to become pregnant during the study and agree to use 1 highly effective birth control method during the study and for at least 30 days after newly introduced medication administration.

    Highly effective birth control methods include hormonal and non-hormonal intrauterine device, combination estrogen-progesterone hormonal contraception (oral, transdermal, or vaginal), tubal ligation, a vasectomized or sterile male partner, or sexual abstinence (defined as refraining from heterosexual intercourse), from Screening throughout the study, and for at least 30 days after newly introduced medication administration. Reliance on abstinence from heterosexual intercourse is acceptable only if it is the subject's habitual practice. NOTE: Female subjects who are not of child-bearing potential (ie, surgically [bilateral oophorectomy, hysterectomy] or naturally sterile [>12 consecutive months without menses]) do not require contraception during the study.

  8. Must be taking a stable dose of ACTOS/pioglitazone for at least 2 months prior to Baseline. (Group A1)

  9. Must be taking a stable dose of FARXIGA/dapagliflozin for at least 2 months prior to Baseline. (Group A2)

  10. Must be taking a stable dose of REZDIFFRA for at least 2 months prior to Baseline. (Groups B1 and B2)

  11. Must not have previously taken RESMETIROM or ACTOS/pioglitazone or FARXIGA/dapagliflozin. (Group C)

  12. For Groups A1, B1, and C1: Meets all requirements per ACTOS/pioglitazone Prescribing Information, in the opinion of the PI.

  13. For Groups B1 and C1: (ie, naïve to ACTOS/pioglitazone): HbA1c at screening ≥7.0% and ≤10.0%.

  14. For Groups A2, B2, and C2: Meets all requirements per FARXIGA/dapagliflozin Prescribing Information, in the opinion of the PI.

  15. For Groups B2 and C2 (ie, naïve to FARXIGA/dapagliflozin): HbA1c at screening ≥7.0% and ≤10.0%.

Exclusion Criteria All subjects

  1. Off label use of the commercially available study medications.

  2. Evidence of cirrhosis demonstrated by clinical, imaging, histologic, or NIT thresholds consistent with cirrhosis.

  3. Other chronic liver diseases (eg, viral hepatitis, autoimmune hepatitis, hemochromatosis).

  4. Documented history of decompensated liver disease.

  5. Use of rosuvastatin or simvastatin at a dose greater than 20 mg/day, or pravastatin or atorvastatin at a dose greater than 40 mg/day, at the time of the first dose of resmetirom. Subjects receiving a statin dose above the applicable limit during the screening period may remain eligible if the dose is reduced to the applicable maximum permitted dose before the first dose of resmetirom.

  6. Any other condition which, in the opinion of the investigator, would impede compliance, hinder completion of the study, compromise the well-being of the subject, or interfere with the study outcomes.

  7. Active or suspected bladder cancer.

  8. Diagnosis of heart failure.

  9. eGFR < 60mL/min/1.73 m2

  10. Developmental/intellectual disability, limited capacity of recognition, any history of clinically important emotional and/or psychiatric illness, inability to follow the study procedures, or any other condition which, in the opinion of the Investigator, would impede compliance, hinder completion of the study, compromise the well-being of the patient, or interfere with the study outcomes.

  11. Individuals who are currently incarcerated or who are anticipated to be incarcerated during the study period.

    Groups B and C:

  12. Unable to secure a prescription for a concomitant medication.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Other: Actos (pioglitazone) [Ongoing] | Resmetirom [New]

Experienced Actos/Pioglitazone + Resmetirom Naive (A1)
Drug: Resmetirom

Resmetirom - weight-based dosing:

  • <100 kg: 80 mg orally once daily.
  • ≥100 kg: 100 mg orally once daily
Drug: ACTOS/pioglitazone

Label dosing recommendations indicated for patients without congestive heart failure (15 or 30 mg orally once daily; if tolerated, increase by 15 mg increments up to a maximum of 45 mg orally once daily for additional glycemic control
Other: Farxiga (dapagliflozin) [Ongoing] | Resmetirom [New]

Experienced Farxiga/Dapagliflozin + Resmetirom Naive (A2)
Drug: Resmetirom

Resmetirom - weight-based dosing:

  • <100 kg: 80 mg orally once daily.
  • ≥100 kg: 100 mg orally once daily
Drug: FARXIGA/dapagliflozin

Label dosing recommendations indicated for glycemic control in type 2 diabetes (5 mg orally once daily; if tolerated, increase to 10 mg orally once daily for additional glycemic control)
Other: REZDIFFRA [Ongoing] | Actos (pioglitazone) [New]

Experienced REZDIFFRA + Actos/Pioglitazone Naive (B1)
Drug: ACTOS/pioglitazone

Label dosing recommendations indicated for patients without congestive heart failure (15 or 30 mg orally once daily; if tolerated, increase by 15 mg increments up to a maximum of 45 mg orally once daily for additional glycemic control

Drug: Rezdiffra

All study medications will be administered according to their labels:

• REZDIFFRA- Label weight-based dosing:

  • <100 kg: 80 mg orally once daily.
  • ≥100 kg: 100 mg orally once daily
Other: REZDIFFRA [Ongoing] | Farxiga (dapagliflozin) [New]

Experienced REZDIFFRA + Farxiga/Dapagliflozin Naive (B2)
Drug: FARXIGA/dapagliflozin

Label dosing recommendations indicated for glycemic control in type 2 diabetes (5 mg orally once daily; if tolerated, increase to 10 mg orally once daily for additional glycemic control)

Drug: Rezdiffra

All study medications will be administered according to their labels:

• REZDIFFRA- Label weight-based dosing:

  • <100 kg: 80 mg orally once daily.
  • ≥100 kg: 100 mg orally once daily
Other: Actos (pioglitazone) [New] | Resmetirom [New]

Naive Actos/Pioglitazone + Resmetirom Naive (C2)
Drug: Resmetirom

Resmetirom - weight-based dosing:

  • <100 kg: 80 mg orally once daily.
  • ≥100 kg: 100 mg orally once daily
Drug: ACTOS/pioglitazone

Label dosing recommendations indicated for patients without congestive heart failure (15 or 30 mg orally once daily; if tolerated, increase by 15 mg increments up to a maximum of 45 mg orally once daily for additional glycemic control
Other: Farxiga (dapagliflozin) [New] | Resmetirom [New]

Naïve Farxiga/dapagliflozin + Resmetirom Naïve (C2)
Drug: Resmetirom

Resmetirom - weight-based dosing:

  • <100 kg: 80 mg orally once daily.
  • ≥100 kg: 100 mg orally once daily
Drug: FARXIGA/dapagliflozin

Label dosing recommendations indicated for glycemic control in type 2 diabetes (5 mg orally once daily; if tolerated, increase to 10 mg orally once daily for additional glycemic control)

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Number and Percentage of Participants With Treatment-Emergent Adverse Events (TEAEs)
Time Frame: From First Dose of newly introduced medication up to 28 weeks

The total number of TEAEs and the number and percentage of participants with at least 1 TEAE will be summarized by study group. TEAEs will also be summarized by System Organ Class and Preferred Term.
From First Dose of newly introduced medication up to 28 weeks
Number and Percentage of Participants With TEAEs by Maximum Severity
Time Frame: From First Dose of newly introduced medication up to 28 weeks

The number and percentage of participants with TEAEs will be summarized by maximum severity using National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE) Version 5.0.
From First Dose of newly introduced medication up to 28 weeks
Number and Percentage of Participants With TEAEs by Relationship to Study Medication
Time Frame: From First Dose of newly introduced medication up to 28 weeks

The number and percentage of participants with TEAEs assessed as Related or Not Related to each applicable study medication (REZDIFFRA/resmetirom, ACTOS/pioglitazone, or FARXIGA/dapagliflozin) will be summarized by study group.
From First Dose of newly introduced medication up to 28 weeks

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Madrigal Pharmaceuticals, Inc.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Director: Tom Hare, Madrigal Pharmaceuticals, Inc.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
October 7, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
November 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 25, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 23, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
September 29, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
October 16, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
October 15, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
October 1, 2026

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MGL-3196-33

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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