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NCT07817186Not yet recruitingPhase 3

Clinical Trial of a MEK Inhibitor for RASopathy-Associated Severe Infantile Hypertrophic Cardiomyopathy: Baby MERIT

Source: ClinicalTrials.gov · Last updated 14 Sept 2026

Brief summary (registry, in English)

This project seeks to perform a Phase 3 clinical trial to test whether an FDA-approved cancer drug called trametinib is effective in treating young infants with genetic conditions called RASopathies and a severe, life-threatening heart problem called hypertrophic cardiomyopathy. The purpose of this research is to demonstrate that trametinib is effective in preventing these sick babies from dying, receiving a heart transplant or undergoing heart surgery to remove extra heart muscle over a one-year period. In addition, the investigators will determine how often this heart problem comes back when the trametinib treatment is stopped.

Status (registry)
Not yet recruiting
Phase (registry)
Phase 3
Study type
Interventional
Enrollment
25 (estimated)
First submitted
17 Aug 2026
Start date
1 Aug 2027
Primary completion date
30 Jun 2032
Lead sponsor
Carelon Research
NCT number
NCT07817186

What you commit to

  • Study type: Interventional · Phase 3
  • Planned participants: 25
  • From 1 Aug 2027 to the primary completion date, 30 Jun 2032
  • No sites listed in no country
  • Visits and tests: ask the trial team, the registry does not list them

Built from the registry fields of ClinicalTrials.gov. It describes the study, not your situation.

Who cannot take part

Copied verbatim from ClinicalTrials.gov and grouped by topic. Only the trial team decides who can take part.

Prior treatment

  • Prior treatment with a MEK inhibitor
  • Requiring treatment with strong inhibitors of CYP2C19 and CYP3A4, strong inducers of CYP3A4, and substrates of CYP2C9 with a narrow therapeutic index

Other illness

  • Neoplastic disorder requiring treatment (e.g., juvenile myelomonocytic leukemia)

Lab values

  • Platelet count \< 50,000/µL

Other

  • PTPN11 pathogenic/likely pathogenic variants causing NSML

Who the study is looking for

  • Molecular genetic diagnosis of a RASopathy signaling through the RAS/MAPK pathway as identified by molecular assays performed in a Clinical Laboratory Improvements of 1988 (CLIA) or similarly certified laboratories. Qualifying genotypes will included variants in any gene causing Noonan, Costello or cardiofaciocutaneous syndrome curated as pathogenic or likely pathogenic and consistent with the genetic mechanism (i.e., one allele in genes acting in an autosomal dominant manner and two alleles in trans for the autosomal recessive form of LZTR1-related Noonan syndrome).
  • Diagnosis of HCM, as defined by LV and interventricular septal wall thickness with a z-score \> 2 by echocardiography
  • Age ≥ 28 days and ≤ 6 months
  • Ross classification of HF of III or IV
  • Hospitalization
  • In the opinion of the site investigator, ability to comply with study protocol requirements
  • Signed informed consent for the trial by a parent or legal guardian

Age in the registry: 28 days to 6 months · Sex: All · Does not accept healthy volunteers

Full criteria on ClinicalTrials.gov

This page is information, not medical advice. Discuss any trial with your doctor.