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Duchenne Muscular DystrophyNCT04668716

Brain Involvement in Dystrophinopathies Part 2

An observational study of Duchenne Muscular Dystrophy and Becker Muscular Dystrophy, run by Great Ormond Street Hospital for Children NHS Foundation Trust at 7 sites in 6 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 objective of this study is to understand the relationship between DMD and BMD brain comorbidities, and the location of the gene mutation which causes the disease. Read more about this study

Who is it for?
Ages 5 to 50 years, men onlyHealthy volunteers can take part
How many people
339 participants
Where
7 sitesin 6 countries
Study dates
11 Oct 2021to 30 Jun 2024
Phase
Observational
Are there results?
None posted in the registry

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 5 to 50 years
  • Men only
  • Healthy volunteers accepted
  • Child, Adult

Study population: The investigators will recruit both patients who have completed a related online study (ClinicalTrials.gov Identifier NCT04583917) and patients directly recruited from participating clinics or research settings. These patients will undergo a structured cognitive and neurobehavioural assessment. A subgroup of patients assessed in the research setting will be invited to also attend a second visit involving a magnetic resonance imaging (MRI) scan of the brain. The investigators aim to recruit 80 participants in the UK and the number of participants in the remaining countries will be 190 patients.

Who may be able to join

  • For DMD patients:
  • Male
  • age 5-17 years
  • genetically-proven diagnosis of DMD
  • genetic mutation that abrogates expression of Dp427 alone (assigned in DMD Group 1: Dp427-/Dp140+) or both Dp427 and Dp140 (assigned to DMD Group 2: Dp427-/Dp140-); or all isoforms (assigned to DMD group 3)
  • For BMD patients:
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  • age 5-50 years
  • genetically-proven diagnosis of BMD
  • genetic mutation that decreases expression of Dp427 alone (assigned to BMD Group 1), of both Dp427 and Dp140 (assigned to BMD Group 2), or of all the isoforms (assigned to BMD group 3).
  • For MRI controls:
  • Male
  • age 5-50 years

Who cannot join

  • For DMD and BMD patients:
  • Lack of a molecular diagnosis of DMD or BMD
  • Mutation falls outside the regions of interest
  • A severe co-morbidity or planned surgical intervention within 6 months from the study which could interfere with the well-being of the participant
  • For MRI controls:
  • any muscle disease
Show all 18Show fewer
  • a brain disorder (such as severe brain concussion in past history, congenital brain anomalies, epilepsy)
  • General exclusion criteria for MRI:
  • Claustrophobia
  • Pacemakers and defibrillators
  • Nerve stimulators
  • Intracranial clips
  • Intraorbital or intraocular metallic fragments
  • Cochlear implants
  • Ferromagnetic implants (e.g. thoracic implant for scoliosis)
  • Inability to lie supine during less than 45 minutes
  • not having a general practitioner
  • severe learning disability which will require a general anaesthetic

Trial locations and contacts

7 sites in 6 countries.

7 sites in 6 countries

United Kingdom2 sites
  • UCL/GOSH

    London

  • University of Newcastle Upon Tyne

    Newcastle

Other trials in United Kingdom

Denmark1 site
  • Copenhagen Neuromuscular Center

    Copenhagen

Other trials in Denmark

France1 site
  • Imagine Institut Des Maladies Genetiques Necker Enfants Malades Fondation

    Paris

Other trials in France

Italy1 site
  • Universita Cattolica Del Sacro Cuore

    Rome

Other trials in Italy

Netherlands1 site
  • STICHTING KEMPENHAEGHE/Leiden University Medical Center

    Heeze

Other trials in Netherlands

Spain1 site
  • Universidad Complutense de Madrid

    Madrid

Other trials in Spain

About this study

Official title: Brain INvolvement in Dystrophinopathies (BIND): Deep Functional Phenotyping of Duchenne Muscular Dystrophy and Becker Muscular Dystrophy Patients (WP5 and WP6) Part 2: a Neurobehavioural and MRI Study

The objective of this study is to understand the relationship between DMD and BMD brain comorbidities, and the location of the gene mutation which causes the disease.

Read the detailed description

Intellectual disability and neurobehavioural comorbidities affect at least 50% of the individuals with Duchenne muscular dystrophy (DMD) which, although a rare genetic disease, is the most common form of muscular dystrophy in childhood. Several studies have documented that 25% of the DMD population has intellectual disability with recent studies suggesting that autism and clinically relevant hyperactivity affects 20% and 25% of DMD boys respectively. A milder allelic variant, named Becker muscular dystrophy (BMD), has similar prevalence in the population and is also associated with variable degrees of central nervous system (CNS) comorbidities, which however have been less well defined.

We will address this knowledge gap in a large multicentre study funded by the European Commission H2020 programme, involving 6 countries (Denmark; The Netherlands; France; Spain; Italy and UK) with the largest European neuromuscular centres and advocacy groups. The aim will be to study the neurobehavioural aspects of DMD and BMD as well as their correlation to the genotype.

This study will involve male participants with DMD aged 5-17 years and with BMD aged 5-50 years, who will complete a battery of cognitive and behavioural assessments. The objective of this study is to deep phenotype a cohort of 270 individuals with DMD and BMD, focussing on the cognitive and neurobehavioural aspects of these conditions. A sub-groups of patients will also undergo magnetic resonance imaging to investigate brain structure, volumetric features, perfusion, functional connectivity and metabolism. This information will then be correlated to the location of the underlying DMD gene mutation. The brain imaging part is also going to involve age and sex-matched controls.

While there have been major improvement on the definition of the genetic basis of the skeletal aspects of dystrophinopathies and their correlation to the DMD genotype, our knowledge on the spectrum of lifespan CNS comorbidities and the precise genotype / phenotype correlations in patients with different DMD mutations is still limited. A study looking into the association between different dystrophin isoforms and different CNS manifestations would therefore offer a unique opportunity to unravel the role of specific dystrophin isoforms and the associated circuitries in brain function.

Keywords
Duchenne Muscular Dystrophy, Deep phenotyping, Gene therapies, Learning difficulties and autism
Medical subject headings
Muscular Dystrophy, Duchenne, Autistic Disorder

What is being measured

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

  1. CNS Comorbidity Phenotyping

    Correlate CNS comorbidity phenotypes with genotype in DMD and BMD patients

    Measured: 170 minutes

Timeline

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

  1. First posted16 Dec 2020
  2. Study start11 Oct 2021
  3. Primary completion30 Jun 2024
  4. Study completion30 Jun 2024

Resources

More details

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

Study design
Study type
Observational
Observational model
Cohort
Time perspective
Cross-sectional
Enrolment
339 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT04668716
Sponsor's protocol ID
20NM35
Status last verified
Jul 2024
First submitted
9 Dec 2020
Last updated
22 Jul 2024
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

An observational study of Duchenne Muscular Dystrophy and Becker Muscular Dystrophy, run by Great Ormond Street Hospital for Children NHS Foundation Trust at 7 sites in 6 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 12 inclusion and 18 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 22 Jul 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 7 sites in United Kingdom, Denmark, France, Italy, Netherlands and 1 more country. 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. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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?

CNS Comorbidity Phenotyping (time frame: 170 minutes). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 22 Jul 2024.

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Brain Involvement in Dystrophinopathies Part 2 | AzTrials