Retrospective Natural History Study of RASopathy-associated Cardiomyopathy

NCT ID: NCT07344480

Last Updated: 2026-01-15

Basic Information

• Recruitment Status: RECRUITING
• Total Enrollment: 100 participants
• Study Classification: OBSERVATIONAL
• Study Start Date: 2025-06-17
• Study Completion Date: 2026-12-31

Brief Summary

RASopathy-associated hypertrophic cardiomyopathy (RAS-CM) is a disease with high morbidity and high mortality if presenting during infancy. Targeted therapies have shown significant activity in preclinical models and case reports. Drugs that target the underlying cause of this disease are now developed in cancer patients. Conducting randomized trials is not possible in severely ill infants with RAS-CM. Existing historical controls from older eras are not sufficient as external controls to support drug development as they lack critical clinical and genetic information to allow comparison with the cohort planned for future clinical trials.

The purpose of this investigator-initiated retrospective natural history study is to collect clinical information and genetic information in patients with RAS-CM. The first goal is to establish a data set that meets regulatory requirements for the use as external control data in a future clinical trial, composing non-randomized, single-arm, open-label study cohorts. The second goal is to obtain natural history information that supports the selection of secondary exploratory endpoints chosen in a clinical trial.

Conditions

Hypertrophic Cardiomyopathy (HCM); Heart Failure; RASopathy

Study Design

• Observational Model Type: OTHER
• Study Time Perspective: OTHER

Interventions

Retrospective data collection

Retrospective data collection, observation group are patients with genetic diagnosis of congenital RASopathy with hypertrophic cardiomyopathy and heart failure

Intervention Type: OTHER

Eligibility Criteria

Inclusion Criteria

Molecular genetic diagnosis of a RASopathy (i.e., a pathogenic or likely pathogenic variant in one of the RAS-MAPK pathway genes identified, irrespective of when performed) AND Imaging diagnosis of myocardial hypertrophy (echocardiography) showing a maximal end-diastolic wall thickness of greater than normal (z-score > 2) with or without outflow tract obstruction AND Admitted to hospital between 01/01/2015 and 06/30/2019 for congestive heart failure* or developing progressive congestive heart failure during any hospital stay within first 6 months of life**

*Ross score calculated from medical history and physical examination notes in the absence of any other reason prompting hospital admission (e.g., elective procedure, other organ dysfunction, etc.); **: defined by Ross score greater than 2

Exclusion Criteria

Receiving mTOR inhibitor and/or MEK inhibitors Inability to identify or retrospectively calculate the patient´s Ross score within the first six months of life

• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Deutsches Herzzentrum Muenchen

OTHER

Sponsor Role: lead

Responsible Party

Responsibility Role: SPONSOR

Locations

TUM Klinikum Deutsches Herzzentrum München

München, , Germany

Site Status: RECRUITING

Countries

Germany

Central Contacts

Cordula Prof. Wolf

Role: CONTACT

wolf@dhm.mhn.de

+49 89 1218-2441

Other Identifiers

RAS-CM

Identifier Type: -

Identifier Source: org_study_id