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

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

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.

Study Overview

• Status: Completed
• Conditions: PTSD

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.

• Study Type: Observational
• Enrollment (Actual): 186

Contacts and Locations

Study Locations

• Canada
  • Quebec
    • Montreal, Quebec, Canada, H2W1Y9
      • Dr. Simon Amar Inc
• Israel
  • Be'er Ya'aqov, Israel
    • Beer Yaakov Mental Health Center
  • Tel Aviv, Israel
    • Tel Hashomer
• United States
  • California
    • San Francisco, California, United States, 94158
      • USCF

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: No

• Sampling Method: Non-Probability Sample

Study Population

Participants with past posttraumatic stress disorder (PTSD) who have completed at least one Experimental Session in the main study protocol.

Description

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

Study Plan

How is the study designed?

Design Details

• Observational Models: Cohort
• Time Perspectives: Retrospective

Number of groups / cohorts

1

Cohorts and Interventions

Group / Cohort
Participants with past PTSD who received IMP in the main study; Non-interventional follow-up study

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
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 study	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.	LTFU IR Assessments at Least 6 Months Since Last Experimental Session in Main Study (Visit 1)

Collaborators and Investigators

• Sponsor: Lykos Therapeutics
• Investigators: Principal Investigator: Jennifer Mitchell, MD, University of California, San Francisco

Study record dates

Study Major Dates

• Study Start (Actual): March 1, 2021
• Primary Completion (Actual): May 16, 2024
• Study Completion (Actual): May 21, 2024

Study Registration Dates

• First Submitted: September 23, 2021
• First Submitted That Met QC Criteria: September 23, 2021
• First Posted (Actual): October 4, 2021

Study Record Updates

• Last Update Posted (Actual): October 30, 2024
• Last Update Submitted That Met QC Criteria: October 28, 2024
• Last Verified: October 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Mental Disorders; Trauma and Stressor Related Disorders; Stress Disorders, Traumatic; Stress Disorders, Post-Traumatic
• Other Study ID Numbers: MPLONG

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No