- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03857243
Dual Transcranial Direct Current Stimulation (dTDCS)-Enhanced Therapy After Hemorrhagic Strokes and VEGF
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The proposed, increased intensity dtDCS is a new, economical, noninvasive stimulation approach that has the potential for large-scale clinical application. Dual tDCS, in conjunction with physical and occupational therapy, is not only more effective in enhancing motor performance and cortical plasticity compared to sham, but approximately 50% more effective than cathodal or anodal stimulation in healthy subjects and after stroke. However, it will only be clinically useful and important if the beneficial effects persist over time in a wider stroke patient population. Improvement in inter-hemispheric balance, through an activation shift toward the affected hemisphere and clinical improvement in response to tDCS has been reported previously in small studies. Hemorrhagic stroke patients have not been evaluated.
The investigators will study rehabilitation associated cortical plasticity at a cellular level to gain insight into the neural substrates underlying the clinical improvement. There are no prior studies investigating the potential of VEGF polymorphisms to contribute to rehabilitative treatment-induced functional recovery in humans. The investigators expect that patients with VEGF genotype 2578A/A will recover less then subjects without this polymorphism. Since in animal models VEGF and BDNF have a complimentary role, VEGF polymorphism may explain some of the variability in strength of association between BDNF polymorphism Val66Met and recovery. This novel pilot study measures both the genetic and physiologic expression of multiple growth factors - before and after a promising new therapy regimen - to better understand the contribution of growth factors to long-term plasticity and functional recovery. If VEGF serum levels elevate with clinical improvement, then this may identify a new indicator of treatment efficacy that can be collected noninvasively and with little cost. The results will provide guidance for new inclusion/exclusion criteria for clinical studies based on genetic markers, as well as uncover the potential for new therapeutic strategies to enhance treatment efficacy by augmenting VEGF during rehabilitation with FDA-approved strategies currently in clinical trials for other conditions (NIH Clinical Trials Registry: NCT01384162, NCT00620217, and NCT00744315).
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Texas
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Dallas, Texas, United States, 75390
- University of Texas Southwestern Medical Center
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Patients (18-85 yo) with arm weakness (uFM <60) as a result of an ICH and no history of other neurologic or psychiatric illness that are able to activate wrist flexors (> MRC 1);
- Patients with symptomatic ICH >5 months before enrollment;
- Ashworth spasticity score <3.
Exclusion Criteria:
- Patients with severe uncontrolled medical problems,
- Patients with subarachnoid, subdural or epidural hemorrhage;
- Patients with unstable cardiac arrhythmia;
- Patients with contraindication to tDCS stimulation;
- Patients who are not available for follow-up or unable to follow study procedures;
- Pregnancy
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: dTDCS plus physical therapy
active dual transcranial direct current stimulation (TDCS) arm (M1-M1)
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Mild, non-invasive battery powered direct current applied to the head over the motor areas.
No shaving or invasive procedures needed.
Other Names:
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Placebo Comparator: Sham dTDCS plus physical therapy
Non-effective dose dual TDCS stimulation arm, identical with intervention arm except for the stimulation intensity/duration used.
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Mild, non-invasive battery powered direct current applied to the head over the motor areas.
No shaving or invasive procedures needed.
Other Names:
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Adverse Events
Time Frame: enrollment to 3 month followup
|
any adverse events that might be related to study procedures
|
enrollment to 3 month followup
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Upper Extremity Fugl-Meyer Score
Time Frame: change between before and 3 months follow-up
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Upper extremity motor impairment scale.
Scale ranges from 0 (worst, can not perform any tasks) to 66 ( performs all tasks fully).
|
change between before and 3 months follow-up
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Wolf Motor Function Test
Time Frame: change between before and at 3 months follow-up
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Timed performance of 15 functional upper extremity tasks, 0-120 seconds, and 2 strength measures. WMFT time measurements are calculated as the arithmetic mean of rate of performance, where we calculate "how many times would a person have completed the task, had he or she been performing it continuously for 60 seconds". Therefore the results have a minimum score of 0, where the subject could not perform any of the tasks, and no pre-defined maximum score, the higher the rate score the faster the subject was able to perform the tasks. ( see Hodics et al.,2013) |
change between before and at 3 months follow-up
|
Collaborators and Investigators
Collaborators
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- 14GRNT18690039
- STU 012014-028 (Other Identifier: IRB University of Texas Southwestern Medical Center)
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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