Spanish Natural History Study for LAMA2 Muscular Dystrophy

April 5, 2025 updated by: Hospital Universitari Vall d'Hebron Research Institute
The objective of this natural history study is to comprehensively characterize the disease progression and clinical features of LAMA2-related dystrophies (LAMA2-RD) in the pediatric population. The study aims to establish a well-defined cohort of patients in Spain, enabling long-term follow-up and facilitating recruitment for future clinical trials.

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.

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.
Observational

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.
100

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

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

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Sampling Method

Non-Probability Sample

Study Population

All patients with compatible clinical presentation and genetical confirmation LAMA2-RD

Description

Inclusion Criteria:

  • All patients with compatible clinical presentation and identification of 2 pathogenic variants in LAMA2, or muscle biopsy with decreased laminin alpha2 protein and at least one pathogenic variant
  • Signed informed consent by the Legal Authority Responsible and/or assent by the subject (starting from 6 years old)

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

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
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.
All patients
Compatible clinical presentation and identification of 2 pathogenic variants in LAMA2, or muscle biopsy with decreased laminin alpha2 protein and at least one pathogenic variant
Diagnostic test: Motor function scales
Evaluation of patients motor function using motor scales (MFM32, CHOP)
Diagnostic test: MUSCLE ULTRASOUND
Ultrasound guided evaluation of 28 muscles evaluated accross different body regions, assessed using the Heckmatt gradinf system (semiquantitative scale).
Diagnostic test: Muscle Elastography
Assess the mechanical properties of muscles, such as stiffness and elasticity.
Other: Complete physical examination
Complete physical evaluations including muscle power and goniometry measurements
Other: Ventilatory/ respiratory and other support assessment
Assessment of ventilatory, respiratory, and other support needs to evaluate the necessity of assistive devices
Other: Oromotor function and nutrition
Assessment of bulbar funcionality: feeding devices, nutritional status.
Other: Motor Milestone Assessments
Motor milestones age of acquisition and loss

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
Change in Motor function Measurement (MFM32) score
Time Frame: Change from baseline through study completion, an average of 5 years
Global motor functioning. The items of the MFM are classified in 3 domains: D1: standing and transfers, D2: Axial and proximal motor function, D3: Distal motor function. Higher scored indicate a better outcome. The range of the total score is 0-96. The main point of interest includes the change of MFM score yearly, over a period of 5 years.
Change from baseline through study completion, an average of 5 years
Change in Motor Milestones
Time Frame: Change from baseline through study completion, an average of 5 years
Age at acquisition (yes/no) and loss of all motor functions (ex: Head control, sitting, standing, walking, running, climbing stairs and tip toe walking)
Change from baseline through study completion, an average of 5 years
Change in Muscle Echogenicity by Muscle Ultrasound
Time Frame: Change from baseline through study completion, an average of 5 years
A standardized muscle ultrasound protocol of assessment is performed (whole body). Muscle images are scored using the Heckmatt scale (Score 1-4): Heckmatt grade 1 represents a normal muscle image, Heckmatt grade 2 shows an increased echogenicity without attenuation of the deeper image regions, Heckmatt grade 3 indicates a larger increase in echogenicity with some visible loss of normal muscle architecture, and Heckmatt grade 4 shows a strongly increased echogenicity with complete loss of recognizable muscle architecture.
Change from baseline through study completion, an average of 5 years

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.
Hospital Universitari Vall d'Hebron Research Institute

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
ASOCIACIÓN IMPÚLSATE PARA LA CURA DE LOS NIÑOS CON DÉFICIT DE MEROSINA

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.
July 27, 2021

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.
July 1, 2030

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.
July 1, 2030

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).
March 7, 2025

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.
April 5, 2025

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.
April 11, 2025

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.
April 11, 2025

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.
April 5, 2025

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.
April 1, 2025

More Information

Terms related to this study

Keywords

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.
  • PR(AMI)/433/2021

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

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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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