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Muscular DystrophyDM1NCT00622453

Arrhythmias in Myotonic Muscular Dystrophy

An observational study of Muscular Dystrophy and Arrhythmia, run by Indiana University at 1 site in United States.

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

Adult myotonic muscular dystrophy (Steinert's disease) is the most common inherited neuromuscular disorder. Cardiac rhythm disturbances occur frequently in this disease state and may be responsible for up to one-third of deaths. Read more about this study

Who is it for?
Ages 18 years and older
What is being tested?
Screening
How many people
448 participants
Where
1 siteUnited States
Study dates
Sep 1996to Feb 2015
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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Study population: Patient Recruitment: Will take place at the 230 hospital-affiliated MDA neuromuscular clinics. Individuals with myotonic dystrophy will be identified in the MDA clinics these will be asked to participate in the study.

Who may be able to join

  • Age 18 and over
  • Willing to sign informed consent
  • Have a previous diagnosis of myotonic muscular dystrophy

Who cannot join

  • Under age 18.
  • Unwilling to sign consent.
  • Unwilling to commit to long-term follow-up.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Krannert Institute of Cardiology

    Indianapolis, Indiana, 46202

Other trials in United States

About this study

Official title: A Registry of Arrhythmias in Myotonic Muscular Dystrophy

Adult myotonic muscular dystrophy (Steinert's disease) is the most common inherited neuromuscular disorder. Cardiac rhythm disturbances occur frequently in this disease state and may be responsible for up to one-third of deaths. In this study, we intend to evaluate the utility of non-invasive electrocardiographic screening methods and history in predicting serious arrhythmic events.

Read the detailed description

The long term objectives of this population study is a more defined natural history, optimal diagnostic testing methodology, and methods of therapy for arrhythmias in individuals with myotonic muscular dystrophy. The goal is a more adequate definition of appropriate diagnosis and therapy for arrhythmias in order to decrease the likelihood of cardiac morbidity and mortality in this disorder.

The specific aims of the study involve an initial survey of individuals with myotonic muscular dystrophy detailing multiple factors. Non-invasive electrocardiographic testing will be done. Using this initial data and subsequent follow-up data collected yearly the cohort of patients will be followed as to arrhythmia development over a minimum of five years and likely longer with a long-term registry and evaluation of National Death Records and Ancestry.com. This project is unique in that it characterizes a non-neurologic abnormality associated with a neuromuscular disease, myotonic muscular dystrophy.

Being tested
Screening
Medical subject headings
Muscular Dystrophies, Arrhythmias, Cardiac, Death, Sudden, Cardiac

What participants receive

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

  • ScreeningOther

    Also called ECG, Holter Monitor, Blood Test

    Electrocardiography Blood Test

Study groups in NCT00622453
Study groupRoleWhat they receive
Registry of ArrhythmiasScreening of individuals with myotonic muscular dystrophy to evaluate the utility of non-invasive electrocardiographic screening methods and history in predicting serious arrhythmic events.
Receives: Other: Screening

What is being measured

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

  1. Evaluate incidence of arrhythmias in myotonic muscular dystrophy

    Measured: 3 years

Secondary outcomes (1)
  1. Evaluate with diagnostic non-invasive electrocardiogram (ECG)

    Measured: 3 Years

Timeline

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

  1. First posted25 Feb 2008 (estimated)
  2. Study startSep 1996
  3. Primary completionJan 2006
  4. Study completionFeb 2015

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
Other
Time perspective
Other
Enrolment
448 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00622453
Sponsor's protocol ID
9609-31
Acronym
DM1
Status last verified
Feb 2018
First submitted
13 Feb 2008
Last updated
14 Feb 2018
Results posted
No
Data monitoring committee
Yes

Publications

  • Groh WJ, Groh MR, Saha C, Kincaid JC, Simmons Z, Ciafaloni E, Pourmand R, Otten RF, Bhakta D, Nair GV, Marashdeh MM, Zipes DP, Pascuzzi RM. Electrocardiographic abnormalities and sudden death in myotonic dystrophy type 1. N Engl J Med. 2008 Jun 19;358(25):2688-97. doi: 10.1056/NEJMoa062800.

    PubMed 18565861
  • Bhakta D, Lowe MR, Groh WJ. Prevalence of structural cardiac abnormalities in patients with myotonic dystrophy type I. Am Heart J. 2004 Feb;147(2):224-7. doi: 10.1016/j.ahj.2003.08.008.

    PubMed 14760317
  • Hardin BA, Lowe MR, Bhakta D, Groh WJ. Heart rate variability declines with increasing age and CTG repeat length in patients with myotonic dystrophy type 1. Ann Noninvasive Electrocardiol. 2003 Jul;8(3):227-32. doi: 10.1046/j.1542-474x.2003.08310.x.

    PubMed 14510658
  • Groh WJ, Lowe MR, Zipes DP. Severity of cardiac conduction involvement and arrhythmias in myotonic dystrophy type 1 correlates with age and CTG repeat length. J Cardiovasc Electrophysiol. 2002 May;13(5):444-8. doi: 10.1046/j.1540-8167.2002.00444.x.

    PubMed 12030525
  • Bhakta D, Shen C, Kron J, Epstein AE, Pascuzzi RM, Groh WJ. Pacemaker and implantable cardioverter-defibrillator use in a US myotonic dystrophy type 1 population. J Cardiovasc Electrophysiol. 2011 Dec;22(12):1369-75. doi: 10.1111/j.1540-8167.2011.02200.x. Epub 2011 Oct 28.

    PubMed 22035077
  • Bhakta D, Groh MR, Shen C, Pascuzzi RM, Groh WJ. Increased mortality with left ventricular systolic dysfunction and heart failure in adults with myotonic dystrophy type 1. Am Heart J. 2010 Dec;160(6):1137-41, 1141.e1. doi: 10.1016/j.ahj.2010.07.032.

    PubMed 21146669

Questions about this trial

What is this clinical trial studying?

An observational study of Muscular Dystrophy and Arrhythmia, run by Indiana University 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 3 inclusion and 3 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 14 Feb 2018. 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?

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?

Evaluate incidence of arrhythmias in myotonic muscular dystrophy (time frame: 3 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 NCT00622453, which also lists 6 linked publications.

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 14 Feb 2018.

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