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Intervention A Fluoxetine

Phase 2

Post Traumatic Stress Disorder | Small molecule | Psychiatry |Adaptive Biotechnologies Corporation|Last Updated: Sep 8, 2025

Target and mechanism

ModalitySmall molecule

Also known as Intervention A Fluoxetine Hydrochloride (HCl)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindPLACEBO_CONTROLLEDDMCBiomarker
Total Trials1
Total Enrollment800

FDA Designations

No designations recorded

Clinical trial landscape

Intervention A Fluoxetine · 1 trial · 1 indication

Phase 2 1
NCT05422612Department of Defense PTSD Adaptive Platform Trial - Master ProtocolPost Traumatic Stress Disorder
RECRUITING800 Analytics
PHASE2RECRUITING
Department of Defense PTSD Adaptive Platform Trial - Master Protocol
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 A: Fluoxetine HClEXPERIMENTAL -
Intervention A PlaceboPLACEBO_COMPARATOR -
Intervention B VilazodoneEXPERIMENTAL -
Intervention B PlaceboPLACEBO_COMPARATOR -
Intervention C DaridorexantEXPERIMENTAL -
Intervention C PlaceboPLACEBO_COMPARATOR -
Intervention D SLS-002EXPERIMENTAL -
Intervention D PlaceboPLACEBO_COMPARATOR -

Interventions

NameTypeDescription
Intervention A Fluoxetine Hydrochloride (HCl)DRUGFluoxetine will be administered at 10 to 60 mg daily. The initial dose for all participants will be 10 mg daily for 1 week, then increased to 20 mg daily for 2 weeks, then increased to 40 mg daily for 2 weeks, then increased to 60 mg daily for the remainder of the trial. One reduction in dose due to tolerability will be allowed. When a participant's dose is decreased due to tolerability, the dose will not be increased.
Intervention A PlaceboDRUGA matching placebo will be administered at 10 to 60 mg daily in the same regimen as the intervention.
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.
Intervention C DaridorexantDRUGDaridorexant will be administered 50 mg once daily.
Intervention C PlaceboDRUGA matching placebo will be administered at 50 mg daily in the same regimen as the intervention.
Intervention D SLS-002DRUG• SLS-002 will be administered via intranasal administration (one spray per nostril, per device) at 78 mg two times per week for the first eight weeks and then once a week for the last four weeks.
Intervention D PlaceboDRUGA matching placebo will be administered via intranasal administration (one spray per nostril, per device) two times per week for the first eight weeks and then once a week for the last four weeks.
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Eligibility Criteria

Age Range18 Years to 65 Years
SexALL
Healthy VolunteersYes
Study Sites10

Inclusion Criteria: A participant must meet all the following criteria to be eligible to participate in this study: 1. Is willing and able to provide written informed consent. 2. ≥18 and \<65 years of age at Screening. 3. Meets Diagnostic and Statistical Manual for Mental Disorders, 5th edition (DS...

Countries:United States
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Frequently asked questions about Intervention A Fluoxetine

What is Intervention A Fluoxetine used for?

Intervention A Fluoxetine is an investigational small molecule being studied for the treatment of Post Traumatic Stress Disorder (PTSD). It is currently in Phase 2 clinical development and is not yet approved by the FDA. The drug is being evaluated in a randomized, double-blind, placebo-controlled trial.

What does Intervention A Fluoxetine target?

Intervention A Fluoxetine is a small molecule being developed for Post Traumatic Stress Disorder. The specific molecular target of this drug has not been disclosed in the available information. It is being studied in a biomarker-selected patient population, suggesting a precision medicine approach to treatment.

Who makes Intervention A Fluoxetine?

Intervention A Fluoxetine is being developed by Adaptive Biotechnologies Corporation, a company traded on the NASDAQ under the ticker symbol ADPT. The company is conducting a Phase 2 clinical trial of this drug for Post Traumatic Stress Disorder.

What phase is Intervention A Fluoxetine in?

Intervention A Fluoxetine is currently in Phase 2 clinical development. It is an investigational drug and has not been approved by the FDA. The ongoing Phase 2 trial is actively recruiting participants with Post Traumatic Stress Disorder.

What clinical trials is Intervention A Fluoxetine in?

Intervention A Fluoxetine is being studied in a single Phase 2 clinical trial registered as NCT05422612, titled "Department of Defense PTSD Adaptive Platform Trial - Master Protocol." This trial is recruiting 800 participants with Post Traumatic Stress Disorder in the United States and is expected to be completed in the future.

Is Intervention A Fluoxetine the same as Intervention A Fluoxetine Hydrochloride?

Yes, Intervention A Fluoxetine is also known as Intervention A Fluoxetine Hydrochloride (HCl). These names refer to the same investigational drug being developed by Adaptive Biotechnologies Corporation for Post Traumatic Stress Disorder.