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Intervention B Vilazodone

Phase 2

Post Traumatic Stress Disorder | Small molecule | Psychiatry |Adaptive Biotechnologies Corporation|Last Updated: May 20, 2026

Target and mechanism

ModalitySmall molecule

Also known as Intervention B Vilazodone Hydrochloride (HCl)

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 B Vilazodone · 1 trial · 1 indication

Phase 2 1
NCT05948579Department of Defense PTSD Adaptive Platform Trial - Intervention B - VilazodonePost Traumatic Stress Disorder
NOT YET_RECRUITING200 Analytics
PHASE2NOT YET_RECRUITING
Department of Defense PTSD Adaptive Platform Trial - Intervention B - Vilazodone
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 B VilazodoneEXPERIMENTAL -
Intervention B PlaceboPLACEBO_COMPARATOR -

Interventions

NameTypeDescription
Intervention B Vilazodone Hydrochloride (HCl)DRUGVilazodone HCl will be administered at 10 mg once daily for 7 days, followed by 20 mg for 7 days, followed by 40 mg for the remainder of the trial. There must be a minimum of 7 days between dosage increases. One reduction in dose due to tolerability will be allowed. After Week 8, dose reduction for tolerability is allowed, but dose increase is not allowed.
Intervention B PlaceboDRUGA matching placebo will be administered at 10 to 40 mg daily in the same regimen as the intervention.
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes

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 treatme...

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Frequently asked questions about Intervention B Vilazodone

What is Intervention B Vilazodone used for?

Intervention B Vilazodone 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 adaptive platform trial. The drug is being evaluated in a randomized, double-blind, placebo-controlled study.

Who is developing Intervention B Vilazodone?

Intervention B Vilazodone is being developed by Adaptive Biotechnologies Corporation, a company listed on the NASDAQ under the ticker symbol ADPT. The company is conducting a Phase 2 clinical trial to evaluate the drug's safety and efficacy in patients with Post Traumatic Stress Disorder.

What phase is Intervention B Vilazodone in?

Intervention B Vilazodone is currently in Phase 2 clinical development. It is an investigational drug, meaning it has not yet been approved by regulatory authorities. The drug is being studied in a Phase 2 trial for Post Traumatic Stress Disorder, with an enrollment target of 200 participants.

What clinical trials is Intervention B Vilazodone in?

Intervention B Vilazodone is being evaluated in a single Phase 2 clinical trial registered as NCT05948579. This trial is titled "Department of Defense PTSD Adaptive Platform Trial - Intervention B - Vilazodone" and is designed as a randomized, double-blind, placebo-controlled study. The trial is not yet recruiting participants and aims to enroll 200 individuals with Post Traumatic Stress Disorder.

Is Intervention B Vilazodone the same as Intervention B Vilazodone Hydrochloride?

Yes, Intervention B Vilazodone is also known as Intervention B Vilazodone Hydrochloride (HCl). Both names refer to the same investigational drug being developed for Post Traumatic Stress Disorder. The drug is currently in Phase 2 clinical trials and has not yet received regulatory approval.