MDMA-Assisted Therapy for Veterans With Moderate to Severe Post Traumatic Stress Disorder

A Randomized, Double-Blind, Single-Site Phase II 2-Arm Study to Compare the Safety and Preliminary Efficacy of Manualized MDMA-Assisted Therapy to Low Dose D-Amphetamine Assisted Therapy in Veterans For The Treatment of Moderate to Severe PTSD

MDMA-Assisted Therapy for Veterans With Moderate to Severe Post Traumatic Stress Disorder (NCT05790239) is a Phase 2 interventional studying Post Traumatic Stress Disorder, sponsored by Stephen Robert Marder. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

About This Trial

What Stage of Research Is This?

Phase 2 trials evaluate whether a treatment actually works against Post Traumatic Stress Disorder and continue monitoring side effects. Phase 2 enrolls larger groups (typically 100–300 patients) and produces the first real efficacy signal. A successful Phase 2 readout is what unlocks the much larger Phase 3 confirmatory trials needed for FDA approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

With a target enrollment of 40 participants, this is a small study — typical of early-phase research, rare-disease trials, or pilot studies designed to generate preliminary signal before a larger study is launched.

Who May Be Eligible (Plain English)

Who May Qualify: - At Screening, meet DSM-5 criteria for current PTSD with a symptom duration of at least 6 months. - Fluent in speaking and reading the predominantly used or recognized language of the study site (English). - Must be a veteran enrolled at a VA Healthcare Center in the Greater Los Angeles area. - Able to swallow pills. - Agree to have study visits audiovisually recorded, including Experimental Sessions, IR assessments, and non-drug therapy sessions. - Able to provide a contact (relative, spouse, close friend, or other support person) who is willing and able to be reached by the investigators in the event of the participant becoming unwell or unreachable. - Able to identify appropriate support person(s) to stay with the participant on the evenings of Experimental Sessions if needed. - May have well-controlled hypertension that has been successfully treated with anti-hypertensive medicines, if they pass additional screening to rule out underlying cardiovascular disease. - May have asymptomatic Hepatitis C virus (HCV) that has previously undergone evaluation and treatment as needed. - Body weight of at least 45 kilograms (kg). Participants with a body weight of 45-48 kg must also have a body mass index (BMI) within the range of 18 to 30 kg/m2. BMI must be within 18 to 32 kg/m2 (inclusive). - A person able to be pregnant (PABP) must use a highly effective contraceptive method. Who Should NOT Join This Trial: - Are not able to give adequate willing to sign a consent form. - Have evidence or history of significant medical or psychiatric disorders. - Are abusing illegal drugs. - Unable or unwilling to safely taper off prohibited psychiatric medication. - Current enrollment in any other clinical study involving an investigational study treatment or any other type of medical research, unless approved by the study clinician. Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language

Inclusion Criteria: * At Screening, meet DSM-5 criteria for current PTSD with a symptom duration of at least 6 months. * Fluent in speaking and reading the predominantly used or recognized language of the study site (English). * Must be a veteran enrolled at a VA Healthcare Center in the Greater Los Angeles area. * Able to swallow pills. * Agree to have study visits audiovisually recorded, including Experimental Sessions, IR assessments, and non-drug therapy sessions. * Able to provide a contact (relative, spouse, close friend, or other support person) who is willing and able to be reached by the investigators in the event of the participant becoming unwell or unreachable. * Able to identify appropriate support person(s) to stay with the participant on the evenings of Experimental Sessions if needed. * May have well-controlled hypertension that has been successfully treated with anti-hypertensive medicines, if they pass additional screening to rule out underlying cardiovascular disease. * May have asymptomatic Hepatitis C virus (HCV) that has previously undergone evaluation and treatment as needed. * Body weight of at least 45 kilograms (kg). Participants with a body weight of 45-48 kg must also have a body mass index (BMI) within the range of 18 to 30 kg/m2. BMI must be within 18 to 32 kg/m2 (inclusive). * A person able to be pregnant (PABP) must use a highly effective contraceptive method. Exclusion Criteria: * Are not able to give adequate informed consent. * Have evidence or history of significant medical or psychiatric disorders. * Are abusing illegal drugs. * Unable or unwilling to safely taper off prohibited psychiatric medication. * Current enrollment in any other clinical study involving an investigational study treatment or any other type of medical research, unless approved by the study clinician.

Treatments Being Tested

DRUG

3,4-methylenedioxymethamphetamine

Initial doses per Experimental Session include 68 mg or 100 mg MDMA (equivalent to 80 mg or 120 mg MDMA HCl), followed 1.5 to 2 hours later by a supplemental dose of 34 mg or 50 mg MDMA (equivalent to 40 mg or 60 mg MDMA HCl).

DRUG

d-amphetamine

Initial dose per experimental session will be 5 mg or 10 mg d-amphetamine, followed 1.5 to 2 hours later by supplemental dose of 2.5 mg or 5 mg d-amphetamine.

BEHAVIORAL

Therapy

Participants assigned to MDMA and d-amphetamine will undergo a therapeutic approach, which is detailed in the MDMA-Assisted Therapy Treatment Manual and administered by MAPS-trained therapists. In brief, this therapy is guided by the subject's own recollections of traumatic events. The subject and two therapists provide a comfortable and supportive environment and allow the subject to guide the discussion. Subjects are encouraged to experience and express fear, anger, and grief with less likelihood of feeling overwhelmed by these emotions. MDMA seems to engender internal awareness that even painful feelings that arise are an important part of the therapeutic process. In addition, feelings of empathy, love, and deep appreciation often emerge, along with a clearer perspective of the trauma as a past event, a more accurate perspective about its significance, and a heightened awareness of the support and safety that exists in the present.

Locations (2)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

VA Greater Los Angeles Healthcare System, Westwood campus

Los Angeles, California, United States

West Los Angeles Veteran Affairs

Los Angeles, California, United States

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT05790239), the sponsor (Stephen Robert Marder), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT05790239 clinical trial studying?

This randomized, double-blind, single-site phase II 2-arm study will investigate the safety and preliminary efficacy of MDMA-assisted therapy compared with low dose d-amphetamine-assisted therapy on the severity of PTSD symptoms in participants aged 18 years and older with PTSD of at least moderate severity. The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT05790239?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT05790239?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT05790239. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT05790239. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.