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Study of Safety and Effects of MDMA-assisted Therapy for Treatment of PTSD

A Phase 2, Open Label Study of the Safety and Effectiveness of MDMA-assisted Therapy for Participants With Posttraumatic Stress Disorder

Status
Withdrawn
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04968938
Acronym
NUMCAP1
Enrollment
0
Registered
2021-07-20
Start date
2022-08-31
Completion date
2023-08-31
Last updated
2024-11-01

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Posttraumatic Stress Disorder

Brief summary

The purpose of this clinical trial is to learn if MDMA-assisted therapy is safe and effective in people with PTSD. The main question it aims to answer is: Do two open-label sessions of MDMA-assisted therapy reduce PTSD symptoms? Participants will undergo three non-drug preparatory therapy sessions followed by two open-label MDMA-assisted therapy sessions. After, participants will undergo three non-drug integrative therapy sessions.

Detailed description

This Phase 2, open-label study will provide supportive data on the safety and effectiveness of MDMA-assisted therapy in participants with PTSD. This study will be conducted at a single study site in Vancouver, BC. There will be at least 2 co-therapy pairs. The study will enroll up to 20 participants. The Preparatory Period will consist of three 90-minute non-drug preparatory therapy sessions. A flexible divided dose of MDMA will be administered during the Treatment Period with manualized therapy in up to two open-label experimental sessions. During the Treatment Period, each experimental session is followed by three 90-minute non-drug integrative therapy sessions. The experimental sessions are scheduled roughly 3 to 5 weeks apart.

Interventions

80 mg or 120 mg midomafetamine HCl followed by a 40 mg supplement dose

BEHAVIORALTherapy

Manualized therapy

Sponsors

Lykos Therapeutics
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Are at least 18 years old. * Are fluent in speaking and reading a recognized language of the study site. * Are able to swallow pills. * Agree to have study visits recorded, including Study Drug Sessions and non-drug therapy sessions. * Must 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 a participant becoming suicidal or unreachable. * Must agree to inform the investigators within 48 hours of any medical conditions and procedures. * If of childbearing potential, must have a negative pregnancy test at study entry and prior to each Experimental Session, and must agree to use adequate birth control through 10 days after the last Experimental Session. * Must not participate in any other interventional clinical trials during the duration of the study, and commit to medication dosing, therapy, and study procedures. * At baseline, have moderate PTSD diagnosis.

Exclusion criteria

* Are not able to give adequate informed consent. * Have uncontrolled hypertension. * Have a marked baseline prolongation of QT/QTc interval (e.g., repeated demonstration of a QTc interval \>450 milliseconds \[ms\] in males and\>460 ms in females corrected by Friderica's formula). * Have a history of additional risk factors for Torsade de pointes (e.g., heart failure, hypokalemia, family history of Long QT Syndrome). * Have evidence or history of significant medical disorders. * Have symptomatic liver disease. * Have history of hyponatremia or hyperthermia. * Weigh less than 48 kilograms (kg). * Are pregnant or nursing, or are of childbearing potential and are not practicing an effective means of birth control. * Have current alcohol or substance use disorders.

Design outcomes

Primary

MeasureTime frameDescription
Change from Baseline in PTSD Checklist (adapted PCL-5) total score18 weeks post baseline post enrollment confirmation20-item self-report questionnaire in which respondents indicate the presence and severity of PTSD symptoms, derived from the symptoms of PTSD per DSM-5. The gold standard for diagnosing PTSD is a structured clinical interview such as the Clinician-Administered PTSD Scale (CAPS-5). When necessary, the PCL-5 can be scored to provide a provisional PTSD diagnosis.The self-report rating scale is 0-4 for each symptom, reflecting a change from 1-5 in the DSM-IV version. Rating scale descriptors are the same: Not at all, A little bit, Moderately, Quite a bit, and Extremely.

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026