Clinical Trial: Clinical Outcome Study for Dysferlinopathy
Study Status: Active, not recruiting
Recruit Status: Active, not recruiting
Study Type: Observational
Official Title: International Clinical Outcome Study for Dysferlinopathy
Brief Summary:
The "Clinical Outcome Study for Dysferlinopathy" is being performed in centres in Europe (UK- Newcastle; Spain- Barcelona, Sevilla; Germany- Berlin, Munich; Italy- Padova; France- Paris, Marseille), USA (Charlotte, NC; Columbus, OH; Washington, DC; St.Louis, MO, Stanford CA), Japan (Tokyo) and Australia (Sydney). Oversight and funding for this study is being provided by the Jain Foundation, a non-profit foundation dedicated to finding therapies for dysferlinopathies(LGMD2b/Miyoshi). The aim of this "Clinical Outcome Study" is to determine the clinical outcome measures required for future clinical trials, characterize the disease progression of dysferlinopathy and collect biological samples for the identification of disease markers that are needed to non-invasively monitor the disease during clinical trials. Without this information, effective clinical trials cannot be performed.
This study is recruiting a large number of genetically confirmed dysferlinopathy patients aged 10 years or older, who are ambulant or non-ambulant. Participants will be assessed at 6 visits over 3 years via medical, physiotherapy, and MRI/MRS assessments, as well as standard blood tests. Optionally, the participants can donate blood samples and a skin sample for use in the identification of disease markers and other approved research.
Detailed Summary:
Dysferlinopathy represents a rare group of muscular dystrophies, presenting a particular challenge for the definition of natural history and "trial readiness". In the early days after the cloning of the dysferlin gene, several papers described the clinical phenotype over time of collections of patients leading to the recognition of the "core" phenotypes of Miyoshi Myopathy (MM), LGMD2B and the rarer distal myopathy with anterior tibial involvement. Most of these papers dealt with inbred populations with a limited number of mutations represented. Subsequent studies have reported larger numbers of patients with outbred mutations and extended the clinical spectrum to include onset as young as early childhood and as late as old age, with a large group of patients in whom a clear distinction in their pattern of muscle involvement into Miyoshi or LGMD was not possible, with involvement of both the proximal and distal musculature in most patients, especially as the disease progresses. A limitation of all of these studies however is that with few exceptions, again mainly in inbred groups, long-term follow-up data are not presented and data on clinical progression are collected in different ways making precise comparisons between their conclusions difficult. Nonetheless, the studies overall are in agreement that dysferlinopathy is a chronically progressive condition sometimes with periods where there is a plateauing of muscle function, with variable age at wheelchair dependency and probably a low risk of cardiac and respiratory complications compared to other types of muscular dystrophy. Intriguing suggestions from these publications which require more systematic study include the definition of a particularly good level of sporting prowess before the onset of symptoms and the description of a subacute onset with muscle pain and swelling, both features, if better understood, that potentially could help in our u
Sponsor: Newcastle-upon-Tyne Hospitals NHS Trust
Current Primary Outcome:
Original Primary Outcome:
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Original Secondary Outcome:
Information By: Newcastle-upon-Tyne Hospitals NHS Trust
Dates:
Date Received: August 28, 2012
Date Started: September 2012
Date Completion: March 2018
Last Updated: March 29, 2017
Last Verified: March 2017
