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Heterozygous Familial HypercholesterolemiaPhase 2NCT03038022

Study of MGL-3196 in Patients With Heterozygous Familial Hypercholesterolemia (HeFH)

A Phase 2 study testing MGL-3196 (resmetirom) in people with Heterozygous Familial Hypercholesterolemia, run by Madrigal Pharmaceuticals, Inc. at 13 sites in 3 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary objective of this study is to determine the effect of once-daily oral MGL-3196 on the percent change from baseline in low-density lipoprotein cholesterol (LDL-C) in participants with Heterozygous Familial Hypercholesterolemia (HeFH). Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
MGL-3196 (resmetirom)
Type of treatment
Pill or oral medicine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
116 participants
Where
13 sitesin 3 countries
Study dates
23 Feb 2017to 15 Jan 2018
Phase
Phase 2
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Must be willing to participate in the study and provide written informed consent;
  • Male and female adults ≥18 years of age;
  • Female participants of child bearing potential with negative serum pregnancy (beta human chorionic gonadotropin) test who are not breastfeeding, do not plan to become pregnant during the study, and agree to use effective birth control per locally agreed requirements; male participants who have sexual intercourse with a female partner of child bearing potential from the first dose of study drug until 1 month after study completion must either be surgically sterile (confirmed by documented azoospermia >90 days after the procedure) or agree to use a condom with spermicide. All male participants must agree not to donate sperm from the first dose of study drug until 1 month after study completion;
  • Must have a diagnosis of HeFH by genetic testing or by having met the diagnostic criteria for definite familial hypercholesterolemia outlined by the Simon Broome Register Group or World Health Organization/Dutch Lipid Network (score >8);
  • Must have had a fasting LDL-C (low density lipoprotein cholesterol) ≥2.6 mmol/L (100 mg/dL); and
  • Must be on a stable or maximally tolerated dose (≥4 weeks prior to screening) of an approved statin (rosuvastatin ≤40 mg daily, atorvastatin ≤80 mg daily), with or without ezetimibe. Patients intolerant to statins were allowed.

Who cannot join

  • Homozygous familial hypercholesterolemia
  • LDL or plasma apheresis within 2 months prior to randomization;
  • New York Heart Association class III or IV heart failure, or known left ventricular ejection fraction <30%;
  • Uncontrolled cardiac arrhythmia, including confirmed QT interval corrected using Fridericia's formula >450 msec for males and >470 msec for females at the screening electrocardiogram assessment;
  • Myocardial infarction, unstable angina, percutaneous coronary intervention, coronary artery bypass graft, or stroke within 3 months prior to randomization;
  • Type 1 diabetes, or newly diagnosed or uncontrolled type 2 diabetes (hemoglobin A1c >8%);
Show all 25Show fewer
  • History of significant alcohol consumption for a period of more than 3 consecutive months within 1 year prior to screening; Note: Significant alcohol consumption is defined as average of >20 g/day in female participants and >30 g/day in male participants;
  • Hyperthyroidism;
  • Thyroid replacement therapy;
  • Hypothyroidism;
  • Evidence of chronic liver disease;
  • Hepatitis B, as defined by the presence of hepatitis B surface antigen;
  • Hepatitis C, as defined by the presence of hepatitis C virus (HCV) antibody (anti-HCV) and HCV ribonucleic acid (RNA). Participants with positive anti-HCV who test negative for HCV RNA at screening will be allowed to participate in the study;
  • Serum alanine aminotransferase >1.5 x upper limit of normal (ULN) (one repeat allowed);
  • Estimated glomerular filtration rate <60 mL/min;
  • Creatine kinase >3 x ULN (one repeat allowed);
  • History of biliary diversion;
  • Positive for human immunodeficiency virus infection;
  • History of malignant hypertension;
  • Systolic blood pressure >160 mmHg or diastolic blood pressure >100 mmHg at screening or randomization and confirmed at an unscheduled visit;
  • Triglycerides >5.7 mmol/L (500 mg/dL) at screening and confirmed by repeat assessment;
  • Active, serious medical disease with likely life expectancy <2 years;
  • Active substance abuse, including inhaled or injection drugs within the year prior to screening;
  • Participation in an investigational new drug trial within the 30 days prior to randomization; or
  • Any other condition which, in the opinion of the Investigator, would impede compliance, hinder completion of the study, or compromise the well-being of the participants.

Trial locations and contacts

13 sites in 3 countries.

13 sites in 3 countries

Netherlands6 sites
  • Madrigal Research Site

    Amsterdam

  • Madrigal Research Site

    Apeldoorn

  • Madrigal Research Site

    Goes

  • Madrigal Research Site

    Hoorn

  • Madrigal Research Site

    Nijmegen

  • Madrigal Research Site

    Zwijndrecht

Other trials in Netherlands

Denmark5 sites
  • Madrigal Research Site

    Aalborg

  • Madrigal Research Site

    Copenhagen

  • Madrigal Research Site

    Esbjerg

  • Madrigal Research Site

    Herlev

  • Madrigal Research Site

    Viborg

Other trials in Denmark

Norway2 sites
  • Madrigal Research Site - 1

    Oslo

  • Madrigal Research Site - 2

    Oslo

Other trials in Norway

About this study

Official title: A Phase 2, Multi-Center, Double-Blind, Randomized, Placebo Controlled Study of MGL-3196 in Patients With Heterozygous Familial Hypercholesterolemia

The primary objective of this study is to determine the effect of once-daily oral MGL-3196 on the percent change from baseline in low-density lipoprotein cholesterol (LDL-C) in participants with Heterozygous Familial Hypercholesterolemia (HeFH).

Being tested
MGL-3196 (resmetirom), Placebo

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • MGL-3196 (resmetirom)Drug

    Oral

  • PlaceboDrug

    Oral

Study groups in NCT03038022
Study groupRoleWhat they receive
MGL-3196ExperimentalStudy Drug
Receives: Drug: MGL-3196 (resmetirom)
PlaceboPlacebo comparatorMatching Placebo
Receives: Drug: Placebo

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Mean Percent Change in LDL-C From Baseline To Week 12

    LDL-C was determined by ultracentrifugation or direct measure. Least-squares (LS) mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

    Measured: Baseline up to Week 12

Secondary outcomes (24)
  1. Mean Change From Baseline to Week 12 of Free Thyroxine (T4)

    T4 was assessed at each study visit.

    Measured: Baseline up to Week 12

  2. Mean Change From Baseline to Week 12 of Free Triiodothyronine (T3)

    Free T3 was assessed at each study visit.

    Measured: Baseline up to Week 12

  3. Mean Change From Baseline to Week 12 of Thyrotropin (TSH)

    TSH was assessed at each study visit.

    Measured: Baseline up to Week 12

  4. Mean Change From Baseline to Week 12 of Thyroxine Binding Globulin (TBG)

    TBG was assessed at all study visits except the Screening Visit.

    Measured: Baseline up to Week 12

  5. Mean Change From Baseline to Week 12 of Reverse Triiodothyronine (T3)

    Reverse T3 was assessed at each study visit.

    Measured: Baseline up to Week 12

  6. Mean Percent Change in Non-high-density Lipoprotein Cholesterol (Non-HDL-C) From Baseline to Week 12

    Non-HDL-C were determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor

    Measured: Baseline up to Week 12

  7. Mean Percent Change In Triglycerides From Baseline To Week 12

    Triglycerides were determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

    Measured: Baseline up to Week 12

  8. Mean Percent Change In Lipoprotein(a) (Lp[a]) From Baseline To Week 12

    Lp(a) was determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

    Measured: Baseline up to Week 12

  9. Mean Percent Change in Apolipoprotein CIII From Baseline to Week 12

    Apolipoprotein CIII was determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

    Measured: Baseline up to Week 12

  10. Mean Percent Change In Apolipoprotein B (ApoB) From Baseline To Week 12

    ApoB was determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

    Measured: Baseline up to Week 12

  11. Mean Percent Change in Apolipoprotein B/Apolipoprotein A1 (ApoB/ApoA1) Ratio From Baseline to Week 12

    The ApoB/ApoA1 ratio was determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

    Measured: Baseline up to Week 12

  12. Mean Percent Change In Cholesterol/HDL-C Ratio From Baseline to Week 12

    The Cholesterol/HDL-C Ratio was determined by ultracentrifugation. LS mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

    Measured: Baseline up to Week 12

  13. Absolute Change in LDL-C From Baseline to Week 12

    LDL-C was determined by ultracentrifugation or direct measure . Least-squares (LS) mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

    Measured: Baseline up to Week 12

  14. Percent Change From Baseline in LDL-C at Week 2 and Week 4 in Patients in the 100 mg and the 60 mg Groups

    LDL-C was determined by ultracentrifugation or direct measure. Least-squares (LS) mean was provided for the comparison of MGL-3196 versus placebo and it used a linear model with percent change from baseline as the dependent variable and treatment as a factor.

    Measured: Baseline to Week 2 and Week 4

  15. Percent Change in LDL-C From Baseline to Week 12 by Systemic Exposure Category

    The effect on percent change in LDL-C from baseline to Week 12 was determined by patient exposure category (higher/lower). Patients taking MGL-3196 were categorized into lower and higher exposure groups. Patients in the higher exposure group must either have had estimated Week 2 AUC ≥5,000 mg∙h/L, or if Week 2 AUC <5,000 mg∙h/L but Week 4 pre-dose concentration >1.5 ng/mL (if on 60 mg MGL-3196). All other patients were in the lower exposure group.

    Measured: Baseline to Week 12

  16. Mean Change in Lipid Particle Concentration From Baseline To Week 12: Total LDL Particles

    The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for LDL Particles.

    Measured: Baseline up to Week 12

  17. Mean Change in Lipid Particle Concentration From Baseline To Week 12: Small LDL Particles

    The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for Small LDL Particles.

    Measured: Baseline up to Week 12

  18. Mean Change in Lipid Particle Concentration From Baseline To Week 12: Intermediate LDL Particles

    The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for Intermediate LDL Particles.

    Measured: Baseline up to Week 12

  19. Mean Change in Lipid Particle Concentration From Baseline To Week 12: Large LDL Particles

    The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for Large LDL Particles.

    Measured: Baseline up to Week 12

  20. Mean Change in Lipid Particle Concentration From Baseline To Week 12:Total Very Low-Density Lipoprotein (VLDL) and Chylomicron Particles

    The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for VLDL and Chylomicron Particles.

    Measured: Baseline up to Week 12

  21. Mean Change in Lipid Particle Concentration From Baseline To Week 12: Total HDL Particles

    The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for Total HDL Particles.

    Measured: Baseline up to Week 12

  22. Mean Change in Lipid Particle Concentration From Baseline To Week 12: LDL Particle Size

    The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for LDL Particle size.

    Measured: Baseline up to Week 12

  23. Mean Change in Lipid Particle Concentration From Baseline To Week 12: VLDL Particle Size

    The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for VLDL Particle Size.

    Measured: Baseline up to Week 12

  24. Mean Change in Lipid Particle Concentration From Baseline To Week 12: HDL Particle Size

    The effect of once-daily oral dosing of MGL-3196 versus placebo for 12 weeks in terms of change from baseline was assessed for HDL Particle Size.

    Measured: Baseline up to Week 12

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted31 Jan 2017 (estimated)
  2. Study start23 Feb 2017
  3. Primary completion15 Jan 2018
  4. Study completion15 Jan 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Quadruple blind
Who is masked
Participant, Care provider, Investigator, Outcomes assessor
Enrolment
116 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03038022
Sponsor's protocol ID
MGL-3196-06
Other IDs
2016-002315-17, 2016
Status last verified
Sep 2025
First submitted
30 Jan 2017
Last updated
4 Jun 2026
Data monitoring committee
Yes
FDA-regulated drug
Yes
FDA-regulated device
No
Individual data sharing
No

Publications

  • Hovingh GK, Klausen IC, Heggen E, McCarty K, Zhou R, Isaac BF, Taub R, Langslet G, Kastelein JJP. Resmetirom (MGL-3196) in Patients With Heterozygous Familial Hypercholesterolemia. J Am Coll Cardiol. 2022 Mar 29;79(12):1220-1222. doi: 10.1016/j.jacc.2022.01.023. No abstract available.

    PubMed 35331419

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing MGL-3196 (resmetirom) in people with Heterozygous Familial Hypercholesterolemia, run by Madrigal Pharmaceuticals, Inc. at 13 sites in 3 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 6 inclusion and 25 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 4 Jun 2026. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in Netherlands, Denmark, Norway. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 23 Dec 2025). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Mean Percent Change in LDL-C From Baseline To Week 12 (time frame: Baseline up to Week 12). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03038022, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 4 Jun 2026.

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