- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01012635
Chronic Pain and Brain Activity in Spinal Cord Injury
Cortical Modulation of Chronic Pain
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
During the first study visit, subjects will receive a physical exam and an electroencephalogram (EEG), which measures brain activity. Research staff will put a cap on your head that has sensors which measure your brain activity. There is no risk of electrical shock. In addition to the sensors in the cap, two clips will be put on your ears. EEG activity will be collected for 20 minutes: you will have your eyes open for ten minutes, and then have your eyes closed for ten minutes.
Additional study visits will follow where we will perform five different procedures (neurofeedback, self-hypnosis, two levels of transcranial direct current stimulation, and meditation). All subjects will receive all five procedures and each procedure will be conducted for 20 minutes.
Self-Hypnosis Training: You will be given verbal suggestions from an audio recording (via headphones) for relaxation and changes in the way you think about pain.
Meditation: You will be asked to focus on a single word ("one") for the entire session.
Neurofeedback Training: During this procedure, three sensors will be placed on your scalp, and one on each earlobe. A small amount of electrode paste will be used when placing the sensor on your scalp. There is no risk of electrical shock. You will be able to see images on a computer screen that correspond to your brain waves. You will learn how to change your brainwaves by changing the images on the computer.
Electric Stimulation (two different levels): This procedure consists of direct stimulation of the brain by a weak electrical current. The two procedure sessions will differ in the characteristics of the stimulation. Two electrodes will be placed on your scalp and secured by a rubber strap. The tDCS procedure is considered experimental and is not currently approved by the FDA but has been studied previously, at the same level of current, in spinal cord injury.
Before and after each procedure we will complete a 10 minutes EEG assessment similar to what is described above. The final procedure session will end with a 20 minute assessment to determine how responsive you are to hypnosis. Each procedure visits may last up to three hours. There will be a total of 6 study visits over approximately 2 months.
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Washington
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Seattle, Washington, United States, 98104
- University of Washington
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Sampling Method
Study Population
Description
Inclusion Criteria:
- Diagnosed with Spinal Cord Injury
- 18 years of age or older
- Daily pain
- At least 12 months since injury
- Read speak and understand English
Exclusion Criteria:
- History of seizure disorder or non-normative brain activity
- Presence of traumatic brain injury or significant skull defects
- Exhibit moderate to severe cognitive impairment
Study Plan
How is the study designed?
Design Details
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Neurofeedback, tDCS (2 levels), Self-hypnosis, Meditation
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Hypnosis Training: Verbal suggestions from an audio recording (via headphones).
Meditation: focus on a single word ("one") for the entire session.
Neurofeedback Training: Two electrodes will be placed on your scalp, and one electrode clipped on your head.
There is no risk of electrical shock.
Other Names:
Direct stimulation of the brain by using a weak electrical current.
There is no risk of electrical shock.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Current pain intensity after each study procedure will be the primary outcome measure. This pain intensity will be assessed using a 0 - 10 Numerical Rating Scale during the EEG (electroencephalogram) assessment after each intervention.
Time Frame: Ratings of current and of average, worst, and least pain intensity "during the past five minutes" will be obtained every 5 min during each of the EEG (electroencephalogram) assessments
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Ratings of current and of average, worst, and least pain intensity "during the past five minutes" will be obtained every 5 min during each of the EEG (electroencephalogram) assessments
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Study procedures will result in changes in the EEG (electroencephalogram) assessment.
Time Frame: Post procedure EEG (electroencephalogram) assessment is completed right after each study procedure
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Specifically these procedures will induce greater relative increases in alpha [7-12 Hz] bandwidth activity and greater relative decreases in beta (14-33 Hz) bandwidth activity, then either of the two control conditions.
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Post procedure EEG (electroencephalogram) assessment is completed right after each study procedure
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The observed changes in EEG (electroencephalogram) bandwidth activity associated with these procedures will mediate the decreases in pain intensity.
Time Frame: Changes in the EEG (electroencephalogram) completed after each procedure will be related to the amount of pain relief experienced.
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Changes in the EEG (electroencephalogram) completed after each procedure will be related to the amount of pain relief experienced.
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Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Principal Investigator: Mark P. Jensen, PhD, University of Washington
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 (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- 36127-B
- 1R21HD058049-01A2 (U.S. NIH Grant/Contract)
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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