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The Effects of Orexin Antagonism on Fear Extinction in PTSD

NCT06788522

This study is recruiting at 1 US site in 1 state, according to its ClinicalTrials.gov record last updated .

Summary

PTSD affects approximately 22% of Veterans who have served in Iraq and Afghanistan. Symptoms of PTSD may include re-experiencing, avoidance of trauma reminders, negative thoughts or feelings, and hyperarousal, such as increased startle reactivity and disturbed sleep. Treatments for PTSD are based on fear extinction principles in which individuals are repeatedly exposed a feared cue in the absence of danger, resulting in diminishing physiological reactions, a process believed to underlie recovery from PTSD. Studies suggest that orexin, a wake-promoting neuropeptide, may enhance fear extinction.

Shortened from the sponsor's brief summary. View official record on ClinicalTrials.gov

Conditions studied

  • Insomnia
  • PTSD

Eligibility basics and study details

Study type
Interventional
Phase
Phase 4
Ages
18 to 75 years
Sex
All
Healthy volunteers
Not accepted
Sponsor
VA Office of Research and Development
Last updated on ClinicalTrials.gov
November 5, 2026

These are the basic criteria only. The full inclusion and exclusion criteria are on the official record, and the study team decides who can take part.

US recruiting sites

California · 1

  • San Francisco VA Medical Center, San Francisco, CA · San Francisco, CA

Source: ClinicalTrials.gov, data processed . Recruiting US sites filtered by distance and site status; summaries shortened.