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NCT03945851 · ClinicalTrials.gov registry record · NA
Functional MRI and DTI Analysis of Post VNS Therapy Rehab Changes
A NA study, sponsored by University of Texas Southwestern Medical Center.
- Completed
- Registry status
- NA
- Development phase
- 3
- Enrollment target
NCT03945851: Completed NA study, sponsored by University of Texas Southwestern Medical Center.
NCT03945851 is a NA study that has completed, run by University of Texas Southwestern Medical Center. The registered enrollment target is 3 participants, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (100% lower). According to ClinicalTrials.gov, the official US trial registry.
The verdict
NCT03945851, a NA study, has completed, sponsored by University of Texas Southwestern Medical Center.
- COMPLETED
- Registry status
- NA
- Development phase
- 3 participants
- Enrollment target
Study Summary
The purpose of performing magnetic resonance imaging (MRI) scans on patients undergoing stroke rehabilitation therapy in conjunction with vagal nerve stimulators (VNS) is to determine if the patients clinical improvement correlates to changes that can be identified on MRI of the brain such as degree of blood oxygen level dependent (BOLD) signal, changes in resting state connectivity, and corticospinal tract fiber density. Subjects will be randomized at implant surgery to either the device treatment (rehabilitation and VNS) or control (rehabilitation and Control VNS) groups. All participants of this study are also participants of the STU 062017-071 study and chose to participate in this functional magnetic resonance imaging (fMRI) sub-study. Rehabilitation is standard of care. Both experimental groups and control groups will receive pre-rehabilitation and post-rehabilitation fMRI and diffusion tensor imaging (DTI) scans to quantify their white matter track density. We will analyze this data using the University of Texas Southwestern (UTSW) Advanced Neuroscience Imaging Research (ANSIR) pipeline which can automatically quantify white matter track density on both sides of the brain given the appropriate scans. In this study the VNS device specifically will not be studied. Rather we will be looking at the changes that occur in the brain as a result of using the VNS device during physical rehabilitation. Once the post-rehabilitation scans are completed the patients in the control group will be given the opportunity to crossover into the experimental group and receive physical rehabilitation with the VNS implant turned on. They will have a third MRI session after their round of rehabilitation with the implant turned on in order to quantify their white matter tract density.
Primary Outcome
White matter track density will be quantified using fMRI and DTI scans.
Interventions
- PROCEDURE fMRI
Trial Details
| Field | Value |
|---|---|
| Enrollment Target | 3 participants |
| Start Date | 2019-04-04 |
| Est. Completion | 2021-04-28 |
| Phase | NA |
What the finished NCT03945851 record still lists
NCT03945851 is an interventional study that assigns participants to a tested intervention. The registry caps enrollment at 3 participants, a relatively small participant target, below the 1,404-participant average among 58,714 other NA trials with a reported enrollment target (100% lower).
The record links to 0 conditions, and to 1 intervention - of which fMRI is the first listed.
NCT03945851 does not publish any study locations in the registry export this page uses.
Frequently Asked Questions
What is clinical trial NCT03945851 about?
NCT03945851 is a clinical study titled "Functional MRI and DTI Analysis of Post VNS Therapy Rehab Changes". The purpose of performing magnetic resonance imaging (MRI) scans on patients undergoing stroke rehabilitation therapy in conjunction with vagal nerve stimulators (VNS) is to determine if the patients clinical improvement correlates to changes that can be identified on MRI of the brain such as degree...
What is the current status of trial NCT03945851?
This trial is currently completed. It is a NA study. The enrollment target is 3 participants. The study started on 2019-04-04. Estimated completion is 2021-04-28.
What interventions are being tested in trial NCT03945851?
The interventions under investigation include: fMRI (PROCEDURE).
Who is sponsoring clinical trial NCT03945851?
This trial is sponsored by University of Texas Southwestern Medical Center, which has 837 total clinical trials registered on ClinicalTrials.gov.
Learn More About Clinical Trials
How this trial's enrollment target compares
Where NCT03945851's enrollment target sits among peer trials
3 1996th of 2000 higher than 4 of 2,000 other NA trials
participants (enrollment target), bucketed by value
Each bar is a band; taller bars hold more other NA trials. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source ClinicalTrials.gov registry export · 2026-08-08
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