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Intervention C Daridorexant

Phase 2

Post Traumatic Stress Disorder | Small molecule | Psychiatry |Adaptive Biotechnologies Corporation|Last Updated: May 27, 2026

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMC
Total Trials1
Total Enrollment200

FDA Designations

No designations recorded

Clinical trial landscape

Intervention C Daridorexant · 1 trial · 1 indication

Phase 2 1
NCT05948540Department of Defense PTSD Adaptive Platform Trial - Intervention C - DaridorexantPost Traumatic Stress Disorder
RECRUITING200 Analytics
PHASE2RECRUITING
Department of Defense PTSD Adaptive Platform Trial - Intervention C - Daridorexant
Post Traumatic Stress DisorderUnlock trial analytics

Study Endpoints

Primary Endpoints

Absolute change in the Clinician-Administered PTSD Scale-5-Revised (CAPS-5-R) Past Month total score at Week 12 (Final/Early termination Visit).
12 Weeks

A change in PTSD symptom severity from baseline as measured by CAPS-5-R Past Month. The range of the scale is 0-200. The higher the score at baseline, the worse the PTSD severity. The larger the decrease in score from baseline, the better the outcome.

Incidence of new or worsening suicidal thoughts or behaviors as measured by change in Columbia Suicide Severity Rating Scale (C-SSRS) score from baseline.
12 Weeks

The C-SSRS is an assessment of suicidal ideation and behavior in clinical and research settings. The C-SSRS consists of 16 questions that ask about suicidal ideation and behaviors (the first 10 questions comprise the ideation subscale and the last 6 comprise the behavior subscale). This 5-item subscale ranges from a minimum of 0 (corresponding to no suicidal ideation) to a maximum of 5 (representing active suicidal ideation with plan and intent).

Secondary Endpoints

Frequency of treatment-emergent adverse events (TEAEs).
12 Weeks
Severity of treatment-emergent adverse events (TEAEs).
12 Weeks
Frequency of serious adverse events (SAEs)
12 Weeks
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Study Design & Arms

AllocationRANDOMIZED
MaskingQUADRUPLE
ModelPARALLEL
PurposeTREATMENT

Treatment Arms

ArmTypeDescription
Intervention C DaridorexantEXPERIMENTAL -
Intervention C PlaceboPLACEBO_COMPARATOR -

Interventions

NameTypeDescription
Intervention C DaridorexantDRUGDaridorexant will be administered 50 mg once daily at least 2 hours after the last meal and within 30 minutes of going to bed.
Intervention C PlaceboDRUGA matching placebo will be administered at 50 mg daily in the same regimen as the intervention.
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites9

Inclusion Criteria: No additional inclusion criteria beyond the inclusion criteria specified in the Master Protocol (NCT05422612). Exclusion Criteria: The following exclusion criteria are in addition to the exclusion criteria specified in the Master Protocol (NCT05422612). 1. History of narcolep...

Countries:United States
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Frequently asked questions about Intervention C Daridorexant

What is Intervention C Daridorexant used for in Post Traumatic Stress Disorder?

Intervention C Daridorexant is an investigational small molecule being studied for the treatment of Post Traumatic Stress Disorder (PTSD). It is currently in Phase 2 clinical development as part of a Department of Defense PTSD Adaptive Platform Trial, with the goal of evaluating its safety and efficacy in patients with this condition.

Who is developing Intervention C Daridorexant?

Intervention C Daridorexant is being developed by Adaptive Biotechnologies Corporation, a company publicly traded under the ticker symbol ADPT. The company is conducting a Phase 2 clinical trial to evaluate this investigational drug for the treatment of Post Traumatic Stress Disorder.

What phase is Intervention C Daridorexant in?

Intervention C Daridorexant is in Phase 2 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities. The ongoing Phase 2 trial is actively recruiting participants to assess the drug's potential in treating Post Traumatic Stress Disorder.

What clinical trials is Intervention C Daridorexant in?

Intervention C Daridorexant is being evaluated in a single Phase 2 clinical trial with the identifier NCT05948540. This trial is titled 'Department of Defense PTSD Adaptive Platform Trial - Intervention C - Daridorexant' and is currently recruiting participants in the United States. The study is randomized, double-blind, and placebo-controlled, with an enrollment target of 200 participants.

Is Intervention C Daridorexant the same as Daridorexant?

Intervention C Daridorexant is the name used for the drug daridorexant within the context of the Department of Defense PTSD Adaptive Platform Trial. The drug is being studied under this intervention-specific designation in the clinical trial, and it is the same investigational compound being evaluated for Post Traumatic Stress Disorder.