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Cerebrovascular AccidentNCT00028379

Enhancement of Use-Dependent Plasticity by Somatosensory Stimulation in Chronic Stroke

A study testing Transcranial magnetic stimulation (TMS) in people with Cerebrovascular Accident, 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

Recent studies have demonstrated that electrical stimulation delivered over the skin increases the muscle strength as measured by a dynamometer in chronic stroke patients. We recently also found out that such stimulation enhances the ability of healthy brains to learn faster, enhancing the beneficial effects of the… Read more about this study

Who is it for?
Any age
Conditions the study is for
Cerebrovascular Accident
What is being tested?
Transcranial magnetic stimulation (TMS)
Type of treatment
Surgery or procedure
How many people
52 participants
Where
1 siteUnited States
Study dates
Dec 2001to Nov 2005
Phase
Interventional
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 Any age
  • All sexes
  • No healthy volunteers
  • Child, Adult, Older adult

Who may be able to join

  • Hemiparetic patients (right or left who had thromboembolic non-hemorrhagic infarction (documented by CT or MRI) more than 6 months before. Patients should have recovered motor function to the point of being able to perform thumb movements.
  • Patients will be recruited from referrals from the community, particularly Baltimore and Washington VA hospitals, and Suburban Hospital as well as stroke clubs. An anatomical MRI scan will be acquired at the NIH if a recent one (within 6 months) is not available.

Who cannot join

  • Large hemorrhagic or brain stem stroke.
  • Multiple cerebral lesions with residual deficits.
  • History of head injury with loss of consciousness.
  • History of severe alcohol or drug abuse.
  • History of psychiatric illness.
  • Unstable cardiac dysrhythmia or unresponsive arterial hypertension (greater than 160/100 mmHg).
Show all 10Show fewer
  • H/o hyperthyroidism.
  • Receiving alpha-adrenergic antagonists or agonists, major/minor tranquilizers, clonidine,prazosin, phenytoin, benzodiazepines, scopolamine, haloperidol, other neuroleptics, barbiturates.
  • Degree of aphasia or cognitive deficit that makes patient unable to give informed consent.
  • Pregnancy, glaucoma, h/o hypersensitivity or idiosyncrasy to sympatomimetic drugs.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • National Institute of Neurological Disorders and Stroke (NINDS)

    Bethesda, Maryland, 20892

Other trials in United States

About this study

Recent studies have demonstrated that electrical stimulation delivered over the skin increases the muscle strength as measured by a dynamometer in chronic stroke patients. We recently also found out that such stimulation enhances the ability of healthy brains to learn faster, enhancing the beneficial effects of the motor training.

The purpose of this study is to find out if this stimulation can enhance the ability of stroke patients to experience plastic changes in the brain. It may aid in the development of new strategies for rehabilitation after brain injury in the future.

Read more

A clinical and neurological exam will be administered. Each patient will participate in three different sessions separated by at least 48 hours: a 2-hour peripheral nerve stimulation to the weak hand, a 2-hour peripheral nerve stimulation to the leg, and no stimulation. The sessions will be randomly ordered. A magnetic resonance imaging scan of the brain will be done as well.

Nerve stimulation will be done by transcranial magnetic stimulation (TMS). In TMS, the head is immobilized within a frame. An insulated coil wire is placed on the scalp and brief electrical current passed through it. Participants may be asked to perform movements, do simple tasks, or simply tense muscles. Electrical activity of the muscles will be recorded with a computer. Some experiments may be recorded on videotape.

Participants must be stroke patients who have recovered to the point of being able to make thumb movements, and the stroke must have occurred more than 6 months ago.

Read the detailed description

There are very few therapeutic options for the treatment of motor disabilities resulting from chronic stroke. Motor training results in use-dependent plasticity, thought to underlie recovery of motor function after cortical lesions. We recently demonstrated that stimulation of peripheral nerves (SPN) administered in association with motor training enhances use-dependent plasticity in healthy volunteers. The purpose of this protocol is to investigate if SPN administered in association with motor training enhances use-dependent plasticity in patients with chronic stroke. If so, it may become an important tool to enhance the beneficial effects of rehabilitative treatment in this patient group.

Being tested
Transcranial magnetic stimulation (TMS)
Keywords
Plasticity, Motor Cortex, Stroke, Somatosensory, Hemiparesis
Medical subject headings
Stroke, Paresis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Transcranial magnetic stimulation (TMS)Procedure or surgery

Timeline

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

  1. First posted28 Dec 2001 (estimated)
  2. Study startDec 2001
  3. Study completionNov 2005

Resources

More details

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

Study design
Study type
Interventional
Phase
Phase N/A
Enrolment
52 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00028379
Sponsor's protocol ID
020082
Other IDs
02-N-0082
Status last verified
Nov 2005
First submitted
27 Dec 2001
Last updated
4 Mar 2008
Results posted
No

Publications

  • Aschersleben G, Gehrke J, Prinz W. Tapping with peripheral nerve block. a role for tactile feedback in the timing of movements. Exp Brain Res. 2001 Feb;136(3):331-9. doi: 10.1007/s002210000562.

    PubMed 11243475
  • Barker AT, Freeston IL, Jalinous R, Jarratt JA. Magnetic stimulation of the human brain and peripheral nervous system: an introduction and the results of an initial clinical evaluation. Neurosurgery. 1987 Jan;20(1):100-9. doi: 10.1097/00006123-198701000-00024.

    PubMed 3808249
  • Barker AT, Jalinous R, Freeston IL. Non-invasive magnetic stimulation of human motor cortex. Lancet. 1985 May 11;1(8437):1106-7. doi: 10.1016/s0140-6736(85)92413-4. No abstract available.

    PubMed 2860322

Questions about this trial

What is this clinical trial studying?

A study testing Transcranial magnetic stimulation (TMS) in people with Cerebrovascular Accident, 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 2 inclusion and 10 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 4 Mar 2008. 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 NCT00028379, 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 4 Mar 2008.

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