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Long-Term Safety and Effectiveness of MDMA-Assisted Therapy for PTSD

Long-Term Safety and Persistence of Effectiveness of Manualized MDMA-Assisted Therapy for the Treatment of Posttraumatic Stress Disorder

Status
Completed
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT05066282
Acronym
MPLONG
Enrollment
186
Registered
2021-10-04
Start date
2021-03-01
Completion date
2024-05-21
Last updated
2024-10-30

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

Conditions

PTSD

Brief summary

The goal of this long-term follow-up study is to measure how long effects of MDMA-assisted therapy last in participants with PTSD who were treated in a prior Phase 3 clinical trial of MDMA-assisted therapy. The main question it aims to answer is: Does MDMA-assisted therapy result in lasting reductions in PTSD symptoms? Participants who have received at least one dose of MDMA-assisted therapy will take a PTSD assessment at least six months after their last MDMA-assisted therapy session in the main study.

Detailed description

This non-interventional study will serve as the long-term follow-up (LTFU) protocol for MDMA-assisted therapy clinical trials and will measure persistence of effectiveness using the CAPS-5 as a measure of PTSD symptom severity. The primary objective of this study is to evaluate the long-term effectiveness of MDMA-assisted therapy for treatment of PTSD as measured by the change in CAPS-5 Total Severity Score (actual or imputed) from the main study Baseline and Study Termination to LTFU IR Assessments (Visit 1). Additionally, this study will gather data to support health economics and cost effectiveness analyses of this treatment. Participants who have received at least one dose of Investigational Medicinal Product (IMP) in the main study will be eligible to participate in this study.

Interventions

None listed

Sponsors

Lykos Therapeutics
Lead SponsorINDUSTRY

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

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

Inclusion criteria

1. Enrolled in a MAPS-sponsored study of MDMA-assisted therapy for the treatment of PTSD 2. Have received Investigational Medicinal Product (IMP) in at least one Experimental Session in the main study 3. Agree to be contacted by study team at least six months after the last Experimental Session in the main study to schedule and participate in LTFU visits

Exclusion criteria

1. Are not able to give adequate informed consent 2. Have any current problem which, in the opinion of the investigator or Medical Monitor, might interfere with participation

Design outcomes

Primary

MeasureTime frameDescription
Clinician Administered PTSD Scale for DSM-V (CAPS-5) Total Severity Score (actual or imputed) from the main study Baseline and Study Termination to assessment in the current LTFU studyLTFU IR Assessments at Least 6 Months Since Last Experimental Session in Main Study (Visit 1)The Clinician-Administered PTSD Scale for DSM-V (CAPS-5) is a clinician administered and scored assessment of PTSD symptoms via structured interview based upon PTSD diagnosis in DSM-5. The total severity score is a sum of symptom frequency and intensity scores for the subscales B (re-experiencing), C (avoidance) and D (hypervigilance) and ranges from 0 to 136, with higher scores indicating greater severity of PTSD symptoms.

Countries

Canada, Israel, United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 10, 2026