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Duchenne Muscular DystrophyNCT02972580

Characterization of Clinical Skeletal and Cardiac Impairment in Carriers of DMD and BMD

An observational study of Duchenne Muscular Dystrophy and Becker Muscular Dystrophy, run by Nationwide Children's Hospital at 1 site in United States.

Active, not recruiting

Under way, not looking for participants. Everyone needed has enrolled. The study is still running.

Official record
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Trial summary

Longitudinal prospective observational study. This is a 24-month study with the possibility of extending the data time points. Initially baseline, then 12 and 24 months follow up studies will be completed. Read more about this study

Who is it for?
Ages 18 years and older, women onlyHealthy volunteers can take part
What is being tested?
Genetic characterization
How many people
250 participants
Where
1 siteUnited States
Study dates
Jun 2016to Dec 2030
Phase
Observational
Are there results?
Not yet: the study is under way

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 18 years and older
  • Women only
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Cohort A: DMD/BMD Female Carriers who have/had an affected child (n=150) Cohort B: DMD/BMD Female non-carriers controls who have/had an affected child (n=50) Cohort C: Healthy Age-Matched Controls (n=50) Cohort D: DMD/BMD Female Carriers who do not have/had an affected child (n=25)

Who may be able to join

  • Age >18 years
  • Cohort A requires a genetically confirmed mutation in the DMD gene with an affected child
  • Cohort B includes DMD/BMD mothers with NO somatic mutation in the DMD gene
  • Cohort C age-matched healthy controls with a normal CK level
  • Cohort D requires a genetically confirmed mutation in the DMD gene without an affected child
  • Able to complete testing in English
  • Able to consent

Who cannot join

  • Subjects with a contraindication to cardiac or skeletal muscle MRI
  • Subjects on heart failure medication at time of enrollment
  • Subjects on steroid treatment
  • Presence of an inherited neurologic disease or comorbidity that may affect their ability to complete this study
  • Has a medical condition or extenuating circumstance that, in the opinion of the investigator, might compromise the subject's ability to comply with the protocol required testing or procedures or compromise the subject's wellbeing, safety, or clinical interpretability

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Nationwide Children's Hosptial

    Columbus, Ohio, 43205

Other trials in United States

About this study

Official title: Characterization of Clinical Skeletal and Cardiac Impairment in Carriers of Duchenne Muscular Dystrophy (DMD) and Becker Muscular Dystrophy (BMD)

Longitudinal prospective observational study. This is a 24-month study with the possibility of extending the data time points. Initially baseline, then 12 and 24 months follow up studies will be completed.

Read the detailed description

Four cohorts are enrolled in this study. The target population is the cohort of genetically confirmed DMD/BMD female carriers (Cohort A). This cohort will consist of 150 DMD/BMD mothers who are somatic carriers of a mutation in the DMD gene. The data collected for this cohort will be compared to three control groups; Control Group B is a cohort of 50 DMD/BMD mothers who are NOT somatic carriers, Control Group C is a cohort of 50 age-matched healthy controls and Control Group D is a cohort of 25 genetically confirmed carriers who do not have an affected child. The inclusion of a Control Group B allows for a comparison to a group of mothers that share the emotional and cognitive burden of caring for an affected male without having the physical or cognitive risks of being a female carrier. The Control Group C offers robust data from an age-matched healthy cohort for purposes of comparison. Control Group D allows for comparison to a group of women that have the same physical or cognitive risks as the Cohort A female carriers, but do not have the same burden of care giving.

Being tested
Genetic characterization
Medical subject headings
Muscular Dystrophy, Duchenne

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Genetic characterizationGenetic

    Confirmatory genetic testing for mutation in DMD gene (Carrier Status) for subjects in respective Cohorts

Study groups in NCT02972580
Study groupRoleWhat they receive
Cohort ADMD/BMD Female Carriers who have/had an affected child (n=150)
Receives: Genetic: Genetic characterization
Cohort BDMD/BMD Female non-carriers controls who have/had an affected child (n=50)
Receives: Genetic: Genetic characterization
Cohort CHealthy Age-Matched Controls (n=50)
Receives: Genetic: Genetic characterization
Cohort DDMD/BMD Female Carriers with no affected children (n=25)
Receives: Genetic: Genetic characterization

What is being measured

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

  1. Compromise of cardiac function based on Cardiac Magnetic Resonance Imaging

    Cardiac function as compromised by evidence of scarring of cardiac muscles, particularly of the base of the left ventricle via cardiac MRI studies with gadolinium contrast.

    Measured: 2 years

Secondary outcomes (12)
  1. Cardiac Function Assessment Treadmill SVO2

    Stress on heart muscle measured by SVO2 (percentage of oxygen saturation in the blood of the pulmonary artery). SVO2 represents an average of all the venous oxygen saturation of major organs and tissues. This measure provides assessment of cardiopulmonary function and helps measure the degree of cardiac instability and can be an indicator of deterioration from normal.

    Measured: 2 years

  2. Physical Therapy Assessments Maximum Voluntary Isometric Contraction Testing

    MVICT measures strength of skeletal muscles by assessing the force generated by by individual muscles. The results can be compared to norms and deterioration can be assessed over time.

    Measured: 2 Years

  3. Physical Therapy Assessments 6 Minute Walk Test

    A timed test to assess distance walked in 6 minutes is very quantitative and can be assessed in comparison to normal controls. Deterioration over time can be clearly measured.

    Measured: 2 years

  4. Physical Therapy Assessments ACTIVE-seated

    Exploratory outcome quantifying upper extremity reaching ability using a custom-designed game telling how far the arm reaches in comparison to overall functional ability of the individual ability.

    Measured: 2 Years

  5. Physical Therapy Assessments Time-to-Rise

    A timed-test to measure ability to rise from the floor is quantifiable and measuring over time tells if there is loss of function.

    Measured: 2 Years

  6. Laboratory biomarkers - Creatine Kinase

    CK levels are an indicator of muscle breakdown.

    Measured: 2 Years

  7. Laboratory biomarkers - C-Reactive Protein

    Pro-inflammatory marker indicating the degree of inflammation of muscle when there is muscle breakdown.

    Measured: 2 Years

  8. Laboratory biomarkers - Interleukin-6

    Pro-inflammatory marker indicating the degree of inflammation of muscle when there is muscle breakdown.

    Measured: 2 Years

  9. Laboratory biomarkers - Cortisol levels

    Hair cortisol levels measure stress levels as a means of understanding coping with disease.

    Measured: 2 Years

  10. Cognitive Assessment

    Cognitive function measured by Wechsler Abbreviated Scale of Intelligence (WASI) provides a possible tool to measure disease awareness and establish if IQ level correlates with disease-related stress.

    Measured: 2 Years

  11. Caregiver Stress

    Online self-report survey to assess stress burden on caregiver.

    Measured: 2 Years

  12. Pulmonary function testing (PFTs)

    Stable or improved FVC

    Measured: 2 Years

Timeline

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

  1. First posted23 Nov 2016 (estimated)
  2. Study startJun 2016
  3. Primary completionDec 2030 (estimated)
  4. Study completionDec 2030 (estimated)

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
Prospective
Enrolment
250 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02972580
Sponsor's protocol ID
IRB16-00319
Status last verified
Aug 2024
First submitted
25 Jul 2016
Last updated
27 Aug 2024
Results posted
No
Data monitoring committee
No

Publications

  • Mah ML, Cripe L, Slawinski MK, Al-Zaidy SA, Camino E, Lehman KJ, Jackson JL, Iammarino M, Miller N, Mendell JR, Hor KN. Duchenne and Becker muscular dystrophy carriers: Evidence of cardiomyopathy by exercise and cardiac MRI testing. Int J Cardiol. 2020 Oct 1;316:257-265. doi: 10.1016/j.ijcard.2020.05.052. Epub 2020 May 27.

    PubMed 32473283

Questions about this trial

What is this clinical trial studying?

An observational study of Duchenne Muscular Dystrophy and Becker Muscular Dystrophy, run by Nationwide Children's Hospital at 1 site in United States.

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 7 inclusion and 5 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: under way, not looking for participants, as of the sponsor's last update on 27 Aug 2024. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. 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?

This study is still under way. Results are not available in the source record yet.

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?

Compromise of cardiac function based on Cardiac Magnetic Resonance Imaging (time frame: 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT02972580, which also lists 1 linked publication.

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 27 Aug 2024; AzTrials last refreshed its copy on 8 Nov 2026.

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