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StrokeNCT01922986

Repetitive Transcranial Magnetic Stimulation Use in Acute Stroke

A study testing active rTMS and conventional stroke therapy in people with Stroke, run by University of Minnesota 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

When a certain area of the brain is injured, like in stroke, several events occur. One side of the body may become weak. This weakness is called hemiparesis and it may create difficulty in performing tasks like writing, eating, and walking. The weakness results from two sources: 1. Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Stroke
What is being tested?
active rTMS and conventional stroke therapy
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
4 participants
Where
1 siteUnited States
Study dates
Sep 2013to Mar 2015
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • stroke onset: within past 30 days but rTMS intervention will commence no sooner than 5 days from stroke onset
  • stroke location: cortical or subcortical
  • stroke type: ischemic
  • age: >18 years
  • paretic index finger must show either no or impaired flexion/extension motion at the metacarpophalangeal (MP) joint.
  • Mini-Mental State Examination greater than or equal to 22
  • ability to stand/transfer with no more than moderate assistance

Who cannot join

  • seizure within past two years
  • metal in head (dental permitted)
  • pregnancy
  • psychiatric disorders
  • receiving tricyclic antidepressants or neuroleptics
  • inability to follow three-step command
Show all 10Show fewer
  • hemineglect
  • dependent on ventilator, nasogastric tube, or implanted medical device
  • co-morbidities impairing upper extremity function
  • anticipated stay at Courage Kenny Rehabilitation Institute shorter than 7 treatment days

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Courage Kenny Rehabilitation Institute

    Minneapolis, Minnesota, 55407

Other trials in United States

About this study

Official title: Real vs Sham rTMS Combined With Conventional Therapy in Acute Stroke

When a certain area of the brain is injured, like in stroke, several events occur. One side of the body may become weak. This weakness is called hemiparesis and it may create difficulty in performing tasks like writing, eating, and walking. The weakness results from two sources:

  1. death of some brain cells in the affected side (hemisphere) of the brain
  2. exaggerated inhibitory signals from the unaffected hemisphere acting on surviving neurons in the affected hemisphere.

Investigators cannot change neurons that have died but they may be able to change the exaggerated inhibition that impairs the surviving neurons in the affected hemisphere.The purpose of this study is to try to decrease the exaggerated inhibition coming from the unaffected hemisphere, which suppresses the affected hemisphere, with transcranial magnetic stimulation (TMS). Investigators hypothesize that, from admission to discharge, active rTMS combined with conventional therapy will produce greater functional gains in the paretic hand compared to sham rTMS combined with conventional therapy, as measured by standard tests.

Read the detailed description

Stroke is the leading cause of long-term disability in the United States and people with stroke deserve our maximum effort to restore in them as much function as possible; yet, mainstream stroke rehabilitation remains mired in traditional treatment approaches that may be suboptimal. However, for the past 5 years we have been endeavoring to advance stroke rehabilitation by including noninvasive brain stimulation. This study will explore whether the safety and functional results from noninvasive brain stimulation in patients with chronic stroke when given by researchers in a laboratory setting can be replicated in acute stroke when given by trained clinicians in the real-world clinical setting.

As background, a phenomenon in stroke is that compensatory overuse of the non-stroke hemisphere can inhibit surviving neurons in the stroke hemisphere. In this way, people with stroke are "doubly disabled" - first, by the stroke itself and, second, by exaggerated interhemispheric inhibition (IHI) arising in the non-stroke hemisphere and acting on surviving neurons in the non-stroke hemisphere. Investigators cannot bring the killed neurons back to life but they can up-regulate the surviving neurons suppressed by IHI. Repetitive transcranial magnetic stimulation (rTMS) is a noninvasive way to do this.

rTMS has not yet entered mainstream clinical use for stroke, likely because it has not been explored in the acute rehabilitation setting with application by clinicians. With prior National Institutes of Health funding, Dr. Carey has considerable experience in using rTMS in the laboratory setting for chronic stroke. He will now take rTMS out of his lab and into the real-world setting of Courage Kenny Rehabilitation Institute (CKRI), the primary referral center for acute stroke rehabilitation in our region, where clinicians will be trained in rTMS. Five daily rTMS treatments (active or sham) will be given to the non-stroke primary motor area (M1). After each treatment, patients will receive their conventional rehabilitation training. This approach is innovative because of the rTMS parameters used and because the application will be given by trained clinicians with oversight by the Principal Investigator, as opposed to laboratory researchers. Expected outcomes are improved hand function with no major adverse effects. Data will serve as a springboard to larger clinical trials.

Specific Aim #1: Determine the safety of 5 treatments of 6-Hz primed low-frequency rTMS combined with conventional therapy in adults with acute stroke.

Adverse effects will be measured through observation for seizures, investigator screening, physician exam, and tests of cognitive function and motor function in the nonparetic hand.

Investigators hypothesize there will be a) no seizures, b) no cognitive decline and c) no motor decline.

Specific Aim #2: Compare the effectiveness of active vs. sham rTMS on functional outcomes in adults with acute stroke.

Adults with acute stroke will be randomized to receive either active rTMS or sham rTMS. Both groups will also receive conventional therapy, consisting of the normal rehabilitation used at this rehabilitation center. Investigators hypothesize that, from admission to discharge, active rTMS will produce greater functional gains in the paretic hand compared to sham rTMS, as measured by standard tests.

Conditions
Stroke
Being tested
active rTMS, sham rTMS, conventional stroke therapy
Keywords
stroke, rehabilitation, hemiplegia, repetitive transcranial magnetic stimulation
Medical subject headings
Stroke, Hemiplegia

What participants receive

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

  • active rTMSDevice

    10 minutes of real high-frequency (6-Hz) rTMS priming (total priming pulses = 600) plus 10 minutes of low-rate (1Hz) rTMS (total low-rate pulses = 600).

  • sham rTMSDevice

    20 minutes of sham rTMS stimulation

  • conventional stroke therapyBehavioural

    conventional stroke therapy consisting of exercises and physical training

Study groups in NCT01922986
Study groupRoleWhat they receive
Active rTMS with conventional therapyExperimental20 minutes of active rTMS followed by conventional stroke therapy
Receives: Device: active rTMS; Behavioral: conventional stroke therapy
sham rTMS with conventional therapySham comparator20 minutes of sham rTMS stimulation followed by conventional stroke therapy
Receives: Device: sham rTMS; Behavioral: conventional stroke therapy

What is being measured

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

  1. Percent Change From Baseline in Jebsen Taylor Hand Function Test Scores

    This test quantifies the time it takes for the subject to do the following standardized functional tasks with the hand: stack three checkers, turn over cards, turn over empty cans, turn over fluid-filled cans, pick up and place small items like a paper clip, etc into a can, and use a spoon to scoop up a bean and drop the bean into a can. The unit of measure is time and changes that are negative signify reduced time at posttest compared to pretest, which would be an improvement. Total score = sum of times for each subtests

    Measured: Measured at pretest (day before treatments begin) and posttest (day following last treatment). Thus, 7 days of participation (1 pretest, 5 treatments, 1 posttest).

Secondary outcomes (2)
  1. Change in Finger Tracking Test

    This test involves placing a device on the hand that shows the changing angle of the finger joint on a computer screen as the joint is moved. The computer screen also shows a target line, such as a sine wave. At the start of the test, the computer screen cursor moves horizontally across the target and the subject moves the finger joint into extension or flexion to adjust the vertical position of the cursor to that it traces the target line as accurately as possible. The performance is quantified by calculating the root-mean-square error between the target line and the response line. This is converted into an Accuracy Index, which has a maximum value of 100% (perfect score). Negative values can occur and reach a value of -100%, signifying very poor performance. Typical scores for healthy range from 50-80%. Typical values in stroke range from -100 to +40%. Changes that are positive signify increased tracking accuracy at posttest compared to pretest, which would be an improvement.

    Measured: Measured at pretest (day before treatments begin) and posttest (day following last treatment). Thus, 7 days of participation (1 pretest, 5 treatments, 1 posttest).

  2. Change in Motricity Index

    Measures strength in finger pinch, elbow flexion and arm abduction. 0 No pinch movement. 11 Slight movement of finger or thumb. 19 Able to grip the cube, but not hold it against gravity. 22 Able to grip and hold the cube against gravity, but not against a weak pull by examiner.

    The weighted score based on the ordinal 6 point scale 26 Able to grip and hold the cube against a weak pull, but weaker than the other side.

    33 Normal pinch grip.

    For shoulder and elbow scoring is:

    0 No movement. 9 Palpable contraction in muscle, but no movement. 14 Visible movement, but not full range and not against gravity. 19 Full range of movement against gravity but not against resistance. 25 Full movement against resistance, but weaker than the other side. 33 Normal power. Maximum total score is 99, minimum is 0. Changes that are positive signify improved strength at postte

    Measured: Measured at pretest (day before treatments begin) and posttest (day following last treatment). Thus, 7 days of participation (1 pretest, 5 treatments, 1 posttest).

Timeline

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

  1. First posted14 Aug 2013 (estimated)
  2. Study startSep 2013
  3. Primary completionMar 2015
  4. Study completionMar 2015

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
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
4 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01922986
Sponsor's protocol ID
Acute_rTMS
Status last verified
Apr 2017
First submitted
26 Jul 2013
Last updated
25 May 2017
Data monitoring committee
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing active rTMS and conventional stroke therapy in people with Stroke, run by University of Minnesota 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 7 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 25 May 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. 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.

Are results available for this study?

Yes. Results are posted in the registry (first posted 4 Apr 2017). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

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?

Percent Change From Baseline in Jebsen Taylor Hand Function Test Scores (time frame: Measured at pretest (day before treatments begin) and posttest (day following last treatment). Thus, 7 days of participation (1 pretest, 5 treatments, 1 posttest).). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
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 25 May 2017.

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