An Evaluation of the Safety and Efficacy of TSND-201 for the Treatment of PTSD (EMPOWER-1)

Last updated: September 14, 2026
Sponsor: Transcend Therapeutics
Overall Status: Active - Recruiting

Phase

3

Condition

Post-traumatic Stress Disorders

Treatment

TSND-201

Placebo

Clinical Study ID

NCT07456696
TSND201-PTSD-301
  • Ages > 18
  • All Genders

Study Summary

This study is evaluating the safety and efficacy of TSND-201 in adults with PTSD.

Eligible participants will enter a 4-week Treatment Period where they will be randomized 1:1:1 to receive one of two doses of TSND-201 or placebo, once per week. Following the Treatment Period, participants will enter an 8-week Follow-up Period.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Meets the DSM-5 criteria for current PTSD diagnosis, with a symptom duration of atleast 6 months.

  • Tried at least one pharmacological treatment for PTSD or trauma-focusedpsychotherapy.

  • Proficient in communication (verbal and reading) to complete interviews and writtenquestionnaires.

  • Free from any other clinically significant illness or disease.

Exclusion

Exclusion Criteria:

  • Primary diagnosis of any other DSM-5 disorder.

  • Body mass index (BMI) <18 kg/m2 or ≥40 kg/m2.

  • Unable to refrain from nicotine use for at least 8 hours.

  • Use of prohibited concomitant medications or therapies.

  • Current or previous history of clinically significant cardiovascular (includingcurrent uncontrolled hypertension) / cerebrovascular conditions.

Study Design

Total Participants: 300
Treatment Group(s): 2
Primary Treatment: TSND-201
Phase: 3
Study Start date:
April 02, 2026
Estimated Completion Date:
December 31, 2027

Connect with a study center

  • Mountain Clinical Trials LLC

    Phoenix, Arizona 85050
    United States

    Active - Recruiting

  • Del Sol Research

    Tucson, Arizona 85715
    United States

    Active - Recruiting

  • Preferred Research Partners

    Little Rock, Arkansas 72211
    United States

    Active - Recruiting

  • Sun Valley Research

    Imperial, California 92251
    United States

    Active - Recruiting

  • Kadima Neuropsychiatry

    La Jolla, California 92037
    United States

    Active - Recruiting

  • CalNeuro Research Group

    Los Angeles, California 90025
    United States

    Active - Recruiting

  • Catalina Research Institute

    Montclair, California 91763
    United States

    Active - Recruiting

  • Excell Research

    Oceanside, California 92056
    United States

    Active - Recruiting

  • ATP Clinical Research

    Orange, California 92866
    United States

    Active - Recruiting

  • Inland Psychiatric Medical Group

    San Juan Capistrano, California 92675
    United States

    Active - Recruiting

  • Starlight Clinical Research

    Evergreen, Colorado 80439
    United States

    Active - Recruiting

  • CNS Healthcare

    Jacksonville, Florida 32256
    United States

    Active - Recruiting

  • Segal Trials

    Lauderhill, Florida 33319
    United States

    Active - Recruiting

  • Accel Clinical Research

    Maitland, Florida 32751
    United States

    Active - Recruiting

  • CNS Healthcare

    Orlando, Florida 32801
    United States

    Active - Recruiting

  • TrialMed

    Atlanta, Georgia 30328
    United States

    Active - Recruiting

  • Uptown Research Institute

    Chicago, Illinois 60640
    United States

    Active - Recruiting

  • DelRicht - New Orleans

    New Orleans, Louisiana 70115
    United States

    Active - Recruiting

  • Headlands Research - Pharmasite

    Pikesville, Maryland 21208
    United States

    Active - Recruiting

  • Vitalix Clinical

    Worcester, Massachusetts 01608
    United States

    Active - Recruiting

  • Arch Clinical Trials

    Creve Coeur, Missouri 63141
    United States

    Active - Recruiting

  • Midwest Research Group

    Saint Charles, Missouri 63304
    United States

    Active - Recruiting

  • Center for Emotional Fitness/ Lumina Clinical Research Center

    Cherry Hill, New Jersey 08002
    United States

    Active - Recruiting

  • Global Medical Institutes

    Princeton, New Jersey 08540
    United States

    Active - Recruiting

  • Bio Behavioral Health

    Toms River, New Jersey 08755
    United States

    Active - Recruiting

  • Medical Research Network

    New York, New York 10128
    United States

    Active - Recruiting

  • Insight Clinical Trials

    Independence, Ohio 44131
    United States

    Active - Recruiting

  • Flourish Research

    Plymouth Meeting, Pennsylvania 19462
    United States

    Active - Recruiting

  • Suburban Research Associates

    West Chester, Pennsylvania 19380
    United States

    Active - Recruiting

  • CNS Memphis

    Memphis, Tennessee 38119
    United States

    Active - Recruiting

  • Austin Clinical Trial Partners

    Austin, Texas 78737
    United States

    Active - Recruiting

  • Haracec Clinical Research

    El Paso, Texas 79902
    United States

    Active - Recruiting

  • Elevate Clinical Research

    Houston, Texas 77058
    United States

    Active - Recruiting

  • Cedar Clinical Research

    Draper, Utah 84020
    United States

    Active - Recruiting

  • Inner Space Research

    Orem, Utah 84058
    United States

    Active - Recruiting

  • Seattle Neuropsychiatric Treatment Center (NTC)

    Seattle, Washington 98104
    United States

    Active - Recruiting

  • Wisconsin-Madison

    Madison, Wisconsin 53706
    United States

    Active - Recruiting

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