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Kennedy disease is an inherited neuromuscular disorder that is characterized by progressive muscle wasting and weakness. It typically starts with muscle spasms and tremors in the arms, followed by muscle weakness and atrophy of muscles in the arms and legs. The facial and bulbar muscles are also involved. However, the muscle involvement pattern has not been investigated systemically in Kennedy disease.
The primary aim of the study is to investigate the muscle involvement in patients with Kennedy disease using MRI. Secondary aims are to examine disease severity and to test MRI as a potential outcome measure for future clinical trials in Kennedy disease.
Approximately 40 patients with Kennedy disease and 20 gender and age matched healthy voluntary controls will be recruited. The study consists of one visit per subject lasting 4-5 hours.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Patients with Kennedy disease | Men over 18 years old with confirmed Kennedy disease. |
| |
| Healthy, voluntary controls | Gender and age matched healthy, voluntary controls. |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| No intervention, observational | Other |
|
| Measure | Description | Time Frame |
|---|---|---|
| Muscle fat fraction | The Dixon MRI will be used to quantify the fat fraction in skeletal muscle. | One MRI scan per subject (exam lasts approximately 60 min.) |
| Measure | Description | Time Frame |
|---|---|---|
| Muscle strength | Isokinetic muscle dynamometry will be used to measure muscle strength. | One muscle strength test per subject (exam lasts approximately 60 min.) |
| Minimal dataset for data collection in Kennedy disease |
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Patients with Kennedy disease:
Inclusion Criteria:
Exclusion Criteria:
Healthy controls
Inclusion Criteria:
Exclusion Criteria:
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Persons in Denmark diagnosed with Kennedy disease is invited to the study.
Gender and age matched controls will be recruited to a control group.
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| Name | Affiliation | Role |
|---|---|---|
| Julia R Dahlqvist, MD | Copenhagen Neuromuscular Center, Department of Neurology, Rigshospitalet, Copenhagen University | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Copenhagen Neuromuscular Center | Copenhagen | 2100 | Denmark |
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| Label | URL |
|---|---|
| The homepage of Copenhagen Neuromuscular Center, Denmark. | View source |
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| ID | Term |
|---|---|
| D055534 | Bulbo-Spinal Atrophy, X-Linked |
| ID | Term |
|---|---|
| D009134 | Muscular Atrophy, Spinal |
| D013118 | Spinal Cord Diseases |
| D002493 | Central Nervous System Diseases |
| D009422 | Nervous System Diseases |
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The 'minimal dataset for data collection in Kennedy disease' will be used to investigate the clinical spectrum of Kennedy disease.
| Data will be collected once for patients with Kennedy disease (exam lasts approximately 90 min.) |
| D020271 | Heredodegenerative Disorders, Nervous System |
| D019636 | Neurodegenerative Diseases |
| D016472 | Motor Neuron Disease |
| D009468 | Neuromuscular Diseases |
| D040181 | Genetic Diseases, X-Linked |
| D030342 | Genetic Diseases, Inborn |
| D009358 | Congenital, Hereditary, and Neonatal Diseases and Abnormalities |