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Neuromodulation of the Hippocampus to Reduce Intrusive Re-Experiencing in PTSD: A Randomized Controlled Trial
Sponsor: Tel Aviv University
Summary
The goal of this clinical trial is to learn if non-invasive neurostimulation of memory-related brain areas works to treat intrusive memory symptoms in adults patients with posttraumatic stress disorder (PTSD). It will also learn about the effect of this neuromodulation procedure on reorganization of memory-related brain networks. The main questions it aims to answer are: Does neuromodulation lower the number of times and the emotional severity participants intrusive memories? Does neuromodulation reduces the overall severity of PTSD? Researchers will compare neuromodulation targeting the hippocampus (a memory-related brain structure) to a control stimulation in an area not related to memory processes to see if hippocampus neuromodulation works to treat intrusive trauma memories and PTSD. Participants will: 1. Undergo magnetic resonance imaging (MRI) scans before and after neuromodulation to: a) determine a personalized neuromodulation target; and b) to measure changes in brain function from before to after treatment. 2. Receive hippocampus neuromodulation or a control neuromodulation once a week for 5 weeks. Keep a daily diary of their symptoms and the number of times they experience intrusive trauma memories.
Official title: Characterization and Modulation of Traumatic Memories in PTSD Patients Using Transcranial Magnetic Stimulation (TMS)
Key Details
Gender
All
Age Range
20 Years - 65 Years
Study Type
INTERVENTIONAL
Enrollment
60
Start Date
2024-11-01
Completion Date
2028-11
Last Updated
2024-11-01
Healthy Volunteers
No
Interventions
Hippocampal stimulation using repetitive transcranial magnetic stimulation (rTMS)
We will use fMRI resting state data to personalize a TMS inhibitory stimulation to a cortical location that is the most strongly connected to a deeper left hippocampal target. 5 once a week sessions of rTMS will be delivered at 1-Hz stimulation frequency for 15 minutes following trauma memory reactivation.
Sham stimulation using repetitive transcranial magnetic stimulation (rTMS)
We will use fMRI resting state data to personalize a TMS sham stimulation to a cortical location with near zero connectivity to a deeper left hippocampal target. 5 once a week sessions of rTMS will be delivered at 1-Hz stimulation frequency for 15 minutes following trauma memory reactivation.
Locations (1)
Tel Aviv University
Tel Aviv, Israel