RECRUITING

A Study to Check Liver Health in Boys With XLMTM, a Serious Genetic Muscle Condition

Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

XLMTM (X-linked myotubular myopathy) is a serious genetic muscle condition. It is caused by changes in the MTM1 gene which stops or slows down normal muscle development, causing severe muscle weakness. There is currently no cure for XLMTM. Ongoing care is needed to manage symptoms and prevent further medical problems from this condition. Recent research shows that individuals with XLMTM often have reduced bile flow which can affect liver and gallbladder health. Bile is a liquid made in the liver that helps digest fat. Ongoing liver health checks may help with the routine care of people with XLMTM. There is a need to understand liver problems that develop in individuals with XLMTM over time. The main aim of the study is to learn how many boys with XLMTM have new cases of liver problems during the study. This study is about collecting information only. This is known as an observational study. The individual's doctor decides on treatment, not the study sponsor (Astellas). In this study, boys under 18 diagnosed with XLMTM will be followed for about 1 year. The health of their liver and gallbladder will be checked about every 6 weeks. This can be done at home, if preferred. A scan called a Fibroscan (also known as transient elastography) will check for signs of scarring in the liver (fibrosis) and the build-up of lipids. It is suggested that each boy will have a Fibroscan when they start the study and another scan when they complete the study. This study will help understand liver, gallbladder, and bile duct issues in individuals with XLMTM over time. The goal is to improve their care and provide information to use in future clinical studies.

Official Title

A Non-interventional, Epidemiologic Study of XLMTM and Clinical Expression in the Liver

Quick Facts

Study Start:2025-03-31
Study Completion:2026-08-31
Study Type:Not specified
Phase:Not Applicable
Enrollment:Not specified
Status:RECRUITING

Study ID

NCT06581146

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.

Ages Eligible for Study:Not specified to 17 Years
Sexes Eligible for Study:MALE
Accepts Healthy Volunteers:No
Standard Ages:CHILD
Inclusion CriteriaExclusion Criteria
  1. * Participant has a diagnosis of XLMTM resulting from a genetically confirmed mutation in the MTM1 gene based on genetic test reports.
  2. * Participant requires some mechanical ventilatory support (e.g., ranging from 24 hours per day full-time mechanical ventilation, to non-invasive support such as continuous positive airway pressure (CPAP) or bilevel positive airway pressure (BiPAP) during sleeping hours)
  3. * Participant (as applicable) and/or parent(s) or legally authorized representative (LAR(s)) is willing to comply with the recommended schedule of assessments.
  1. * Participant is currently enrolled in an interventional study designed to treat XLMTM.

Contacts and Locations

Study Contact

Astellas Gene Therapies
CONTACT
800-888-7704
Astellas.registration@astellas.com

Principal Investigator

Medical Director
STUDY_DIRECTOR
Astellas Gene Therapies

Study Locations (Sites)

Boston Children's Hospital
Boston, Massachusetts, 02115
United States

Collaborators and Investigators

Sponsor: Astellas Gene Therapies

  • Medical Director, STUDY_DIRECTOR, Astellas Gene Therapies

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 Registration Dates

Study Start Date2025-03-31
Study Completion Date2026-08-31

Study Record Updates

Study Start Date2025-03-31
Study Completion Date2026-08-31

Terms related to this study

Keywords Provided by Researchers

  • XLMTM
  • Hepatobiliary

Additional Relevant MeSH Terms

  • X-Linked Myotubular Myopathy