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StrokePhase 1/2NCT01539096

Brain Stimulation-aided Stroke Rehabilitation: Neural Mechanisms of Recovery

A Phase 1/2 study testing tDCS: noninvasive brain stimulation and Constraint induced movement therapy (CIMT) in people with Stroke, run by The Cleveland Clinic 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

The purpose of this study is to investigate whether benefits of training the affected hand in patients with stroke can be improved by combining training with a painless, noninvasive technique called Transcranial Direct Current Stimulation (TDCS). Read more about this study

Who is it for?
Ages 21 years and olderHealthy volunteers can take part
Conditions the study is for
Stroke
What is being tested?
tDCS: noninvasive brain stimulation and Constraint induced movement therapy (CIMT)
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
67 participants
Where
1 siteUnited States
Study dates
Jul 2011to Dec 2019
Phase
Phase 1/2
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 21 years and older
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Diagnosed with stroke that occurred at least 6 months ago

Who cannot join

  • Pregnant
  • Ongoing use of Central Nervous System activating medications
  • Presence of an electrically, magnetically or mechanically activated implant, including cardiac pacemaker, cochlear implant
  • Metal in the head
  • A history of medication-resistant epilepsy in the family
  • Past history of seizures or unexplained spells of loss of consciousness

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The Cleveland Clinic

    Cleveland, Ohio, 44195

Other trials in United States

About this study

The purpose of this study is to investigate whether benefits of training the affected hand in patients with stroke can be improved by combining training with a painless, noninvasive technique called Transcranial Direct Current Stimulation (TDCS). TDCS will be applied over the part of the brain responsible for movements of the affected hand. Also, the investigators will study the changes in the brain that favor recovery of hand function following combination of training and tDCS.

Read the detailed description

The overall goal of this study is to develop a novel rehabilitative method, in chronic stroke, which minimizes residual deficits by maximally utilizing the potential for cortical plasticity.

Despite extensive rehabilitation, approximately 60-80% of patients with stroke experience residual dysfunction of the upper limb. Deficits are believed to linger due to neurophysiologic imbalance between the ipsilesional (stroke-affected) and contralesional (intact) motor cortices. Specifically, the ipsilesional motor cortex loses its normal inhibitory control over the contralesional areas, which, in return, intensify their inhibitory influence upon the former. Constraint-Induced Movement Therapy (CIMT) represents a family of techniques that alleviates residual deficits by rectifying these neurophysiologic imbalances. By reinforcing use of the paretic upper limb in daily life during restraint of the non-paretic limb, CIMT initiates use-dependent neuroplastic reorganization implicating the ipsilesional motor areas, which demonstrate return-of-activity and regain territory in the surviving regions, mitigating the exaggerated inhibitory influence exerted by the contralesional areas.

Despite promising evidence, however, clinical utility of CIMT is limited due to its labor-intensive protocols and inadequate gains. Our objective is to address gaps in existing clinical rehabilitative research. The investigators propose to 1) combine CIMT with targeted stimulation of the ipsilesional motor cortices, 2) Use a novel, noninvasive method of stimulation, called transcranial direct current stimulation (tDCS), 3) Use multimodal imaging to determine comprehensive mechanisms of recovery in patients. Our central hypotheses are 1) ipsilesional motor cortices would be an ideal site for delivering stimulation during CIMT, 2) tDCS will be easy, safe and inexpensive to apply and will target multiple maps concurrently during rehabilitation as demonstrated in our elemental research. 3) structural and functional imaging methods will demonstrate complementary cortical, corticospinal and cortico-muscular markers of recovery.

Conditions
Stroke
Being tested
tDCS: noninvasive brain stimulation, Constraint induced movement therapy (CIMT), Sham tDCS: placebo noninvasive brain stimulation
Keywords
Stroke, Rehabilitation, Paresis, Paralysis, Recovery, tDCS, Transcranial Direct Current Stimulation, CIMT, Constraint Induced Movement Therapy, Stroke therapy, MRI, Hand, CVA, Cerebrovascular accident
Medical subject headings
Stroke, Paresis, Paralysis

What participants receive

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

  • tDCS: noninvasive brain stimulationProcedure or surgery

    Also called tDCS, noninvasive brain stimulation, neuromodulation, transcranial stimulation

    TDCS is a method of noninvasive stimulation of the brain. Using electrodes placed in saline-soaked sponges, low level of direct current (1mA) is delivered over the scalp. This intervention is considered safe and noninvasive because it does not involve implantation or injection or any skin penetration. In the present study, tDCS will be delivered for 1 hr each day for 3 days a week for 5 weeks in conjunction with constraint-induced movement therapy for the affected hand.

  • Constraint induced movement therapy (CIMT)Behavioural

    Also called hand therapy, CIMT, forced use therapy, constraint induced movement therapy

    Patients with stroke affecting the hand will receive constraint-induced movement therapy (CIMT) to re-train movements of the affected hand. Training will involve practicing tasks of daily living with qualified personnel. Training will be delivered for 1 hr each day for 3 days a week for 5 weeks. Patients will also be asked to use their affected hand in daily activities at home for 5 hrs a day while wearing a mitt on the unaffected hand.

  • Sham tDCS: placebo noninvasive brain stimulationProcedure or surgery

    Placebo set-up for noninvasive brain stimulation will be similar to that for the active tDCS; sponge electrodes would be placed on the scalp and connected to a batter-operated device. Patients will not receive the effective level of direct current as would delivered in active tDCS intervention. But patients will not be able to decipher whether they are receiving active or placebo tDCS.

Study groups in NCT01539096
Study groupRoleWhat they receive
Sham tDCS plus CIMTSham comparatorSubjects in this group will be trained on Constraint induced movement therapy (CIMT) for the hand while concurrently receiving placebo noninvasive brain stimulation (tDCS). They will be receiving Sham tDCS: placebo noninvasive brain stimulation. They will be provided treatment for 3 days a week for 5 weeks for 1 hr each day at the Cleveland Clinic. They would be asked to use affected hand in daily activities for 5 hrs everyday at home while wearing a mitt on their unaffected hand.
Receives: Behavioral: Constraint induced movement therapy (CIMT); Procedure: Sham tDCS: placebo noninvasive brain stimulation
tDCS plus CIMTExperimentalPatients with stroke affecting the hand will receive Constraint-induced movement therapy (CIMT) concurrent with tDCS: noninvasive brain stimulation. TDCS will be applied to areas of the brain responsible for movement of the affected hand. This combination of tDCS and CIMT will be delivered for 1 hr each day for 3 days a week for 5 weeks. Patients will also be asked to use their affected hand in daily activities at home for 5 hrs a day while wearing a mitt on the unaffected hand.
Receives: Procedure: tDCS: noninvasive brain stimulation; Behavioral: Constraint induced movement therapy (CIMT)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change in Upper limb function following combination of tDCS with CIMT

    To address the functional advantage of combining tDCS and CIMT tests that evaluate impairments of the hand will be utilized. Also, change in ability to carry out activities of daily living will be measured.

    Measured: Each patient will be given the assessment tests at 3 points during the study, at baseline, interim test (an average of 2.5 weeks from baseline) and at posttest (an average of 5 weeks from baseline).

Secondary outcomes (1)
  1. Study of change in neural mechanisms that underlie the complementary association of cortical stimulation and CIMT

    To identify the underlying neural mechanisms in the association of cortical stimulation and CIMT, the patient will undergo structural and functional magnetic resonance imaging (MRI) and tests of neurophysiology.

    Measured: Each patient will be given the assessment tests at 3 points during the study, at baseline, interim test (an average of 2.5 weeks from baseline) and at posttest (an average of 5 weeks from baseline)

Timeline

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

  1. First posted27 Feb 2012 (estimated)
  2. Study startJul 2011
  3. Primary completionDec 2019
  4. Study completionDec 2019

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
67 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01539096
Sponsor's protocol ID
11-586
Other IDs
1K01HD069504-01
Status last verified
Jul 2020
First submitted
16 Feb 2012
Last updated
16 Jul 2020
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No: The Investigators will not be sharing or releasing any study data to third parties outside the Cleveland Clinic.

Publications

  • Unger RH, Lowe MJ, Beall EB, Bethoux F, Jones SE, Machado AG, Plow EB, Cunningham DA. Stimulation of the Premotor Cortex Enhances Interhemispheric Functional Connectivity in Association with Upper Limb Motor Recovery in Moderate-to-Severe Chronic Stroke. Brain Connect. 2023 Oct;13(8):453-463. doi: 10.1089/brain.2022.0064. Epub 2023 Apr 10.

    PubMed 36772802
  • Plow EB, Cunningham DA, Beall E, Jones S, Wyant A, Bonnett C, Yue GH, Lowe M, Wang XF, Sakaie K, Machado A. Effectiveness and neural mechanisms associated with tDCS delivered to premotor cortex in stroke rehabilitation: study protocol for a randomized controlled trial. Trials. 2013 Oct 12;14:331. doi: 10.1186/1745-6215-14-331.

    PubMed 24119615

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing tDCS: noninvasive brain stimulation and Constraint induced movement therapy (CIMT) in people with Stroke, run by The Cleveland Clinic 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 1 inclusion and 6 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 16 Jul 2020. 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. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

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.

What does the primary outcome measure?

Change in Upper limb function following combination of tDCS with CIMT (time frame: Each patient will be given the assessment tests at 3 points during the study, at baseline, interim test (an average of 2.5 weeks from baseline) and at posttest (an average of 5 weeks from baseline).). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01539096, which also lists 2 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 16 Jul 2020.

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