Spinal Muscular Atrophy Trial, Recruiting
Who may be able to join
AI generated eligibility summary. Written by an AI model from the official source data and checked on a sample basis. It can contain mistakes, so confirm anything important against the original source. How we use AI
Who might be able to join this trial:
If you have SBMA (Spinal Bulbar Muscular Atrophy):
- You are willing to follow all study procedures and are available for the full duration of the study
- You are male and over 18 years old
- Your SBMA diagnosis has been confirmed through genetic testing
- You are able to understand the study and are willing to sign a consent form
- You are able to travel to the NIH Clinical Center
If you are joining as a Healthy Control (comparison participant):
- You are willing to follow all study procedures and are able to travel to the NIH for the duration of the study
- You are male and over 18 years old
- You have no history of SBMA or any other neuromuscular (nerve or muscle) condition
- You have no history of facial palsy (weakness or drooping of the face)
- You are able to understand the study and are willing to sign a consent form
- You are able to travel to the NIH Clinical Center
Who may not be able to join:
SBMA participants may not be eligible if:
- You cannot have an MRI scan — for example, if you have a pacemaker, defibrillator, insulin pump, metal clips, non-removable metal jewellery, or if you experience severe claustrophobia (fear of enclosed spaces)
- You are unable to walk
- You have used hormone-reducing medications (androgens) in the past two years
SBMA participants may not be able to take part in the spinal fluid (lumbar puncture) procedure if:
- Your blood clotting test results are outside of the normal range by a certain amount (confirm with trial site)
- You have a low platelet count, abnormal bleeding time, or certain abnormal blood test results (confirm with trial site)
- You have a history of a bleeding disorder
- You are taking blood-thinning medications
SBMA participants may not be able to take part in the muscle biopsy (small muscle sample) procedure if:
- The muscle in your lower leg that would be sampled has wasted away too much to safely take a sample
- You have taken aspirin or anti-inflammatory painkillers (such as ibuprofen) in the 3 days before the procedure
SBMA participants may not be able to take part in the whole-body MRI if:
- You have previously been treated with hormone-reducing medications, including certain types of injections or tablets used to lower androgen (male hormone) levels
- You are unable to complete strength and walking tests as part of the study
- You are planning to make significant changes to your diet or exercise routine during the study period
Healthy Control participants may not be eligible if:
- Your blood clotting test results are outside of the normal range by a certain amount (confirm with trial site)
- You have a low platelet count, abnormal bleeding time, or certain abnormal blood test results (confirm with trial site)
- You have a history of a bleeding disorder
- You are taking blood-thinning medications
Important: Always verify eligibility with the trial site directly before applying.
Based on publicly available eligibility criteria from ClinicalTrials.gov. Verify directly with the trial site before acting. This is not medical advice.
Contact this trial
Principal Investigator: Christopher Grunseich, M.D., National Institute of Neurological Disorders and Stroke (NINDS)
Phone: (301) 451-8146
Contact details sourced from ClinicalTrials.gov. Verify directly with the trial site before attending.
GP referral letter
Print a one-page summary to share with your doctor.
Trial details
Where this trial is recruiting
Primary endpoints
Disease progression as measured by clinical and molecular tests
Can't join this trial?
Data last synced from ClinicalTrials.gov: 28 July 2026. Trial status can change. Always verify current status directly with the trial site before making any decision.