- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03243149
Neurofeedback With Real-Time fMRI for Treatment of PTSD
Neurofeedback With Real-Time fMRI for Treatment of Posttraumatic Stress Disorder
Study Overview
Detailed Description
The proposed treatment is expected to reduce symptoms of PTSD particularly re-experiencing and hyperarousal symptoms. These improvements in symptoms are expected to translate into improved social and occupational function for subjects with PTSD.
Specific Aim 1: The investigators will test (1) the efficacy of neurofeedback in subjects with PTSD attempting to upregulate ventral medial PFC and simultaneously downregulate amygdala, and (2) determine the number of neurofeedback sessions (dose) needed for target engagement and transfer. Prior to the neurofeedback training, participants' baseline ability to regulate in the absence of neurofeedback from real-time fMRI will be ascertained. Then during session, participants will receive veridical real-time feedback in the scanner indicating the activation level of ventromedial PFC minus amygdala. Participants will attempt to regulate to achieve a predetermined target level known to the participant. Neurofeedback conditions will include (1) false feedback (sham) shows a thermometer that indicates false feedback consisting of noise, (2) view condition shows a thermometer that indicates true activation of ventromedial PFC minus amygdala but the participant is asked not to attempt neuroregulation, (3) free regulate shows a thermometer that indicates true activation of ventromedial PFC minus amygdala while the participant attempts neuroregulation. The investigators will enroll 10 participants who will engage in a six weekly neurofeedback sessions to assess target engagement and dosing.
Specific Aim 2: The ability for participants to regulate will be further challenged by explicit exposure to trauma relevant stimuli that elicit increased amygdala activation in patients with PTSD. The investigators will follow the same procedure as the previous aim except that free regulate condition (condition #3) will be replaced with conditions (4) trauma regulate shows a participant-specific trauma-relevant image and the thermometer that indicates true activation of ventromedial PFC minus amygdala while the participant attempts neuroregulation, and (5) neutral regulate shows a trauma-unrelated image and the thermometer that indicates true activation of ventromedial PFC minus amygdala while the participant attempts neuroregulation. The investigators will enroll 10 participants who will engage in a six weekly neurofeedback sessions to assess target engagement and dosing.
Participants will be assessed for PTSD and related symptoms before and after to the 6-week intervention using the Clinician Administered PTSD Scale (CAPS) (Appendix XVI) and Beck Depression Inventory (BDI-II) (Appendix IX). The investigators hypothesize enhanced neuroregulation and transfer will be associated with a concomitant reduction in PTSD severity and lower comorbid anxiety symptoms.
Specific Aim 3: Participants will be assessed before and after the 6-week intervention with a brief neurocognitive battery of episodic memory, working memory, executive function, and sustained attention. The investigators hypothesize that successful neuroregulation and transfer will be associated with concomitant cognitive performance improvements.
Study Type
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
North Carolina
-
Durham, North Carolina, United States, 27710
- Duke University Medical Center
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Fluent in English and capable of informed consent
- free of implanted metal objects
- 18-50 years of age
- Antidepressant sleep and anti-anxiety medication use is permitted
Exclusion Criteria:
- Claustrophobia
- Neurological disorders, History of learning disability or developmental delay
- Current substance abuse or history of substance dependence
- Psychotic disorders
- Significant medical conditions
- Current suicidality or attempt within the previous year
- History of neurological injury or disease
- Pregnancy
- Major Axis 1 Psychiatric Disorders (exceptions are unipolar depression, past substance abuse, current or past nicotine dependence)
- Metal in the body
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Single
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Sham Comparator: False Feedback
Neurofeedback from real-time acquired images (fMRI - GE Medical System) will be shown to subjects.
False feedback (sham) shows a thermometer that indicates false feedback consisting of noise.
|
Recovery from PTSD symptoms has been modeled experimentally as fear extinction that depends on three interconnected brain regions that involve the amygdala where extinction memories are stored, the subcallosal/subgenual cortex within the medial PFC involved in consolidation of the extinction memory, and the hippocampus which mediates the context specificity of context specificity of extinction. The two MRI systems are used for human research by many faculty and research groups at Duke and UNC, Chapel Hill. The center has two research dedicated General Electric MR 750 scanners with a field strength of 3 Tesla. These systems use a combination of General Electric production pulse sequences and custom research pulse sequences that have been developed by Brain Imaging and Analysis Center faculty and other MR physicists. The scanners are used for imaging and spectroscopy.
Other Names:
|
Active Comparator: View Condition
Neurofeedback from real-time acquired images (fMRI - GE Medical System) will be shown to subjects.
View condition shows a thermometer that indicates true activation of ventromedial PFC minus amygdala but the participant is asked not to attempt neuroregulation.
|
Recovery from PTSD symptoms has been modeled experimentally as fear extinction that depends on three interconnected brain regions that involve the amygdala where extinction memories are stored, the subcallosal/subgenual cortex within the medial PFC involved in consolidation of the extinction memory, and the hippocampus which mediates the context specificity of context specificity of extinction. The two MRI systems are used for human research by many faculty and research groups at Duke and UNC, Chapel Hill. The center has two research dedicated General Electric MR 750 scanners with a field strength of 3 Tesla. These systems use a combination of General Electric production pulse sequences and custom research pulse sequences that have been developed by Brain Imaging and Analysis Center faculty and other MR physicists. The scanners are used for imaging and spectroscopy.
Other Names:
|
Experimental: Free Regulate
Neurofeedback from real-time acquired images (fMRI - GE Medical System) will be shown to subjects.
Free regulate shows a thermometer that indicates true activation of ventromedial PFC minus amygdala while the participant attempts neuroregulation.
|
Recovery from PTSD symptoms has been modeled experimentally as fear extinction that depends on three interconnected brain regions that involve the amygdala where extinction memories are stored, the subcallosal/subgenual cortex within the medial PFC involved in consolidation of the extinction memory, and the hippocampus which mediates the context specificity of context specificity of extinction. The two MRI systems are used for human research by many faculty and research groups at Duke and UNC, Chapel Hill. The center has two research dedicated General Electric MR 750 scanners with a field strength of 3 Tesla. These systems use a combination of General Electric production pulse sequences and custom research pulse sequences that have been developed by Brain Imaging and Analysis Center faculty and other MR physicists. The scanners are used for imaging and spectroscopy.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in MRI Imaging Acquisition
Time Frame: Baseline scan (week 1), week 2, week 3, week 4, week 5 and week 6.
|
fMRI scans will use a 3T GE scanner at the Duke-UNC Brain Imaging and Analysis Center. Structural MRI data and functional MRI data that includes real-time feedback on the participants brain activity will be made available to the participant to facilitate self-regulation. Participants will begin and end each scanning session with a 6-minute resting-state scan. The purpose of the first resting-state run is collect pre-Training baseline resting-state activation and to acclimate the subject to the scanner environment prior to neuroregulatory training. The purpose of the second resting state run is examine changes in functional connectivity after compared to before real-time fMRI neurofeedback. To determine the effect of session on subject ability to increases ventromedial prefrontal cortex activation and decrease amygdala activation and establish a dose-response relationship for neuroregulation, we will measure changes in BOLD signal across scan sessions. |
Baseline scan (week 1), week 2, week 3, week 4, week 5 and week 6.
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in psychophysiological data
Time Frame: Baseline scan (week 1), week 2, week 3, week 4, week 5 and week 6.
|
Physiological measures of heart rate and respiration will be recorded during each scan, using an MR-safe commercial system (MP-150 BIOPAC systems, Goleta, CA) to permit removal of physiological noise from the fMRI signal. To evaluate potential scalable non-fMRI correlates, we will also acquire pupillometry using an MR-compatible camera (Arrington Research, Inc.) and galvanic skin conductance levels to identify fear or anxiety responses that impede self-activation. To determine the effect of session on subject ability to regulate stress through neurofeedback, we will measure changes in psychophysiological data across scan sessions. |
Baseline scan (week 1), week 2, week 3, week 4, week 5 and week 6.
|
Change in Clinician Administered PTSD Scale (CAPS) Severity Score
Time Frame: Baseline, 6 weeks
|
Participants will be assessed for current and lifetime PTSD twice, once at the beginning and once at the end of the 6 weeks.
|
Baseline, 6 weeks
|
Beck Depression Inventory-II (BDI-II)
Time Frame: Baseline
|
Diagnostic assessment for PTSD and comorbid symptoms of depression
|
Baseline
|
Drug Abuse Screening Test (DAST)
Time Frame: Baseline
|
Diagnostic assessment for substance use
|
Baseline
|
Combat Exposure Scale (CES)
Time Frame: Baseline
|
Diagnostic assessment for combat exposure.
|
Baseline
|
Deployment Risk and Resilience Inventory-2 (DRRI-2)
Time Frame: Baseline
|
Baseline diagnostic assessment for both risk and resilience.
|
Baseline
|
Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Rajendra A Morey, MD, Duke University
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
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
Other Study ID Numbers
- Pro00081664
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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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