- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03626428
Effective Connectivity in Patients Receiving Spinal Cord Stimulation: an fMRI and EEG Dynamic Causal Modeling Study (CRIME)
In this study, a retrospective analysis will be performed on collected data of 14 patients with Failed Back Surgery Syndrome, treated with Spinal cord stimulation.
In separate studies, fMRI and EEG recordings were made in resting state conditions on two time points. The fMRI assessments and EEG recordings were performed before the SCS implantation (baseline) and repeated around 3 months after the definitive SCS implantation. During both assessments, patients were asked to fill in a VAS diary for their leg and back pain (scores from 0 to 10).
The aim of the current retrospective study is to correlate the clinical data obtained from the VAS scores, with estimates of effective connectivity (obtained from fMRI and EEG). Effective connectivity will be calculated by using dynamic causal modeling (DCM) on the baseline data and the data obtained 3 months after SCS. The aim is to evaluate whether DCM data of EEG is equally/worse/better correlating with the clinical data as DCM data of fMRI.
Study Overview
Status
Conditions
Study Type
Enrollment (Actual)
Contacts and Locations
Study Locations
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Jette, Belgium, 1090
- Universitair Ziekenhuis Brussel
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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:
- Subject is at least 18 years old.
- Diagnosis of FBSS with predominant leg pain (VAS) > 5) and non-dominant back pain.
- Cognitive and language functioning enabling coherent communication between the examiner and the subject;
- Failed conservative treatments for pain including but not limited to pharmacological therapy and physical therapy
- Stable neurologic function in the past 30 days
- Subject is included in the previous studies and both EEG and fMRI data are available.
Exclusion Criteria:
- Female subject of childbearing potential is pregnant/nursing, or plans to become pregnant during the course of the trial
- Subjects currently has an active infection
Study Plan
How is the study designed?
Design Details
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
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Correlation pain intensity scores with estimates of effective connectivity
Time Frame: The change between baseline and 3 months after the definitive implantation of the neurostimulator
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The investigators will evaluate the degree of correlation between pain intensity ratings and effective connectivity based on fMRI data and between pain intensity ratings and effective connectivity based on EEG data.
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The change between baseline and 3 months after the definitive implantation of the neurostimulator
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Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (Actual)
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
- CRIME
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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