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Spinal Muscular AtrophyNCT00061607

Measuring Levels of SMN in Blood Samples of SMA Patients

An observational study of Spinal Muscular Atrophy, run by National Institute of Neurological Disorders and Stroke (NINDS) 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

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. Read more about this study

Who is it for?
Ages 2 years and older
Conditions the study is for
Spinal Muscular Atrophy
How many people
73 participants
Where
1 siteUnited States
Study dates
19 May 2003to 4 Apr 2017
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 2 years and older
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • 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).

Who cannot join

  • History of valproic acid or other HDAC inhibitor use within the past14 days.
  • History of bleeding disorder, which would make a blood draw unsafe.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institutes of Health Clinical Center, 9000 Rockville Pike

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Official title: SMN Levels in Peripheral Blood Samples of SMA Patients and the Effects of Pharmacological Compounds In Vitro

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.

Read the detailed description

Spinal muscular atrophy (SMA) is a currently untreatable, autosomal recessive motor neuron disease that is caused by deficiency of full-length survival motor neuron (SMN) protein. One promising therapeutic approach to SMA is to pharmacologically increase full-length SMN protein levels. Several compounds have been shown to increase SMN levels in immortalized cell lines derived from SMA patients. The objective of this study is to determine baseline SMN levels in primary peripheral blood cells of SMA patients and heterozygous carriers compared to unaffected controls and to investigate the effects in vitro of pharmacological compounds that are expected to increase SMN levels. It is anticipated that these studies will provide further evidence to support the use of one or more of these compounds in a clinical trial for SMA patients. The study population will include patients with genetically proven type I, II, or III SMA and their family members. Blood samples from anonymous, unaffected control patients will be obtained through the department of transfusion medicine (99-CC-0168). This is an investigative study that involves blood drawing only. No new therapy will be provided except the standard of care.

Keywords
Motor Neuron Disease, Neuromuscular Disease, Histone Deacytelase Inhibitors, Spinal Muscular Atrophy, SMA
Medical subject headings
Muscular Atrophy, Spinal, Motor Neuron Disease, Neuromuscular Diseases

Timeline

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

  1. First posted30 May 2003 (estimated)
  2. Study start19 May 2003
  3. Study completion4 Apr 2017

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Enrolment
73 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00061607
Sponsor's protocol ID
030203
Other IDs
03-N-0203
Status last verified
4 Apr 2017
First submitted
29 May 2003
Last updated
6 Oct 2017
Results posted
No

Publications

  • 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.

    PubMed 9173917
  • Pearn 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.

    PubMed 745211
  • Nicole 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.

    PubMed 12115944

Questions about this trial

What is this clinical trial studying?

An observational study of Spinal Muscular Atrophy, run by National Institute of Neurological Disorders and Stroke (NINDS) 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 2 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 6 Oct 2017. 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.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00061607, which also lists 3 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 6 Oct 2017.

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