Measuring Levels of SMN in Blood Samples of SMA Patients
SMN Levels in Peripheral Blood Samples of SMA Patients and the Effects of Pharmacological Compounds In Vitro
2 other identifiers
observational
73
1 country
1
Brief Summary
Spinal muscular atrophy (SMA) is a disorder that affects the motor neurons. SMA is caused by a mutation in a part of the DNA called the survival motor neuron (SMN1) gene, which normally produces a protein called SMN. Because of their gene mutation, people with SMA make less SMN protein, which results in the loss of motor neurons. SMA symptoms may be improved by increasing the levels of SMN protein. The purpose of this study is to determine whether a drug called a histone deacetylase inhibitor can increase SMN levels. After undergoing a general medical and neurological evaluation, study participants will donate a blood sample. Researchers will use this sample to measure SMN levels. They will also isolate cells from the blood and treat the cells with various drugs that may increase SMN levels.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started May 2003
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
May 19, 2003
CompletedFirst Submitted
Initial submission to the registry
May 29, 2003
CompletedFirst Posted
Study publicly available on registry
May 30, 2003
CompletedStudy Completion
Last participant's last visit for all outcomes
April 4, 2017
CompletedOctober 6, 2017
April 4, 2017
May 29, 2003
October 5, 2017
Conditions
Keywords
Eligibility Criteria
You may qualify if:
- Diagnosis of SMA with genetically proven mutations in the SMN1 gene or unaffected family members (age greater than or equal to 2 years).
- No exposure to valproic acid or any other HDAC inhibitors for a period of at least 2 weeks.
- Written, informed consent (and assent, if applicable).
You may not qualify if:
- History of valproic acid or other HDAC inhibitor use within the past14 days.
- History of bleeding disorder, which would make a blood draw unsafe.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
National Institutes of Health Clinical Center, 9000 Rockville Pike
Bethesda, Maryland, 20892, United States
Related Publications (3)
Crawford TO, Pardo CA. The neurobiology of childhood spinal muscular atrophy. Neurobiol Dis. 1996 Apr;3(2):97-110. doi: 10.1006/nbdi.1996.0010. No abstract available.
PMID: 9173917BACKGROUNDPearn J. Incidence, prevalence, and gene frequency studies of chronic childhood spinal muscular atrophy. J Med Genet. 1978 Dec;15(6):409-13. doi: 10.1136/jmg.15.6.409.
PMID: 745211BACKGROUNDNicole S, Diaz CC, Frugier T, Melki J. Spinal muscular atrophy: recent advances and future prospects. Muscle Nerve. 2002 Jul;26(1):4-13. doi: 10.1002/mus.10110.
PMID: 12115944BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Kenneth H Fischbeck, M.D.
National Institute of Neurological Disorders and Stroke (NINDS)
Study Design
- Study Type
- observational
- Sponsor Type
- NIH
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
May 29, 2003
First Posted
May 30, 2003
Study Start
May 19, 2003
Study Completion
April 4, 2017
Last Updated
October 6, 2017
Record last verified: 2017-04-04