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SuspendedPhase 2

Department of Defense PTSD Adaptive Platform Trial - Intervention C - Daridorexant

Key facts

Who runs it
Global Coalition for Adaptive Research
Where
Atlanta, Bethesda, Fort Belvoir, Fort Thomas, Joint Base Lewis McChord, Miami, San Antonio, Tripler AMC, and Williamsville, United StatesSee the 9 sites
Trial code
Status
Suspended
Phase
Phase 2
People taking part
200 people, planned
Started
2 Nov 2023
Expected to end
Jul 2029
Type of study
Interventional, 2 groupsOne group gets a placebo (a dummy treatment), for comparison.
Treatments tested
  • Intervention C Daridorexant
  • Intervention C Placebo
Record updated
30 June 2026
Why it stopped
The trial has been temporarily suspended due to administrative issues

Who can take part

Age
18 years to 65 years
Sex
Women and men
Healthy volunteers
Can take part

The registry criteria, word for word

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Who can take part

  • No additional inclusion criteria beyond the inclusion criteria specified in the Master Protocol (NCT05422612)

Who cannot take part

  • History of any treatment with daridorexant
  • History of narcolepsy
  • The following exclusion criteria are in addition to the exclusion criteria specified in the Master Protocol (NCT05422612)

Where in United States

  • Advanced Discovery ResearchAtlanta, United States
  • Walter Reed National Military Medical Center (WRNMC)Bethesda, United States
  • Alexander T. Augusta Military Medical Center (ATAMMC):Fort Belvoir, United States
  • Cincinnati Veteran's Affairs Medical CenterFort Thomas, United States
  • Madigan Army Medical CenterJoint Base Lewis McChord, United States
  • Homestead Associates in Research Inc.Miami, United States
  • Wilford Hall Ambulatory Surgical Center (WHASC)San Antonio, United States
  • Tripler Army Medical Center (TAMC)Tripler AMC, United States
  • Upstate Clinical Research Associates, LLCWilliamsville, United States

About the trial

What the trial wants to find out

This is a Phase 2 randomized, double-blinded, placebo-controlled study that will evaluate multiple potential pharmacotherapeutic interventions for PTSD utilizing an adaptive platform trial design.

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Intervention C - Daridorexant will assess the safety and efficacy of daridorexant in participants with PTSD.

Please see NCT05422612 for information on the S-21-02 Master Protocol.

The 2 groups in the trial

  • Intervention C DaridorexantTreatment being tested
  • Intervention C PlaceboPlacebo, for comparison

Data and sources

Registry record
Listed on ClinicalTrials.gov.
Official title
A Phase 2, Multi-center, Multi-arm, Randomized, Placebo-controlled, Double-blind, Adaptive Platform Study to Evaluate the Safety, Tolerability, and Efficacy of Potential Pharmacotherapeutic Interventions in Active-Duty Service Members, Veterans, and Non-Veteran Civilians With PTSD
Record updated
30 June 2026