Trial reportPsychopharmacology2020
Long-term follow-up outcomes of MDMA-assisted psychotherapy for treatment of PTSD: a longitudinal pooled analysis of six phase 2 trials.
Trial report in Psychopharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It has been retracted, and should not be counted. It is linked to 7 registered trials, which are not on this map. Cited by 69 papers, 7 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Phase II Clinical Trial Testing the Safety and Efficacy of 3,4-Methylenedioxymethamphetamine (MDMA)-Assisted Psychotherapy in Subjects With Chronic Posttraumatic Stress Disorder
Phase II Pilot Randomized Double-Blind Placebo-Controlled Study of 3,4-methylenedioxymethamphetamine (MDMA)Assisted Psychotherapy in Posttraumatic Stress Disorder (PTSD)- Switzerland
Randomized, Triple-Blind, Phase 2 Pilot Study Comparing 3 Different Doses of MDMA in Conjunction With Manualized Therapy in 24 Veterans, Firefighters and Police Officers With Chronic Posttraumatic Stress Disorder (PTSD)
A Randomized, Double-Blind, Active Placebo-Controlled Phase 2 Pilot Study of MDMA-assisted Psychotherapy in People With Chronic, Treatment-Resistant Posttraumatic Stress Disorder (PTSD)
A Randomized, Double-Blind, Dose Response Phase 2 Pilot Study of Manualized MDMA-Assisted Psychotherapy in Subjects With Chronic, Treatment-Resistant Posttraumatic Stress Disorder (PTSD)
A Randomized, Double-Blind, Controlled Phase 2 Pilot Study of Manualized 3,4-methylenedioxymethamphetamine (MDMA)-Assisted Psychotherapy in 12 Subjects With Treatment-Resistant Posttraumatic Stress Disorder (PTSD) - Canada
EMPOWER Study: Exploring Medically Perceived Benefits, Use and Interest in Psychedelics and Cannabinoids: Observational Study With First Responders and Military Personnel Examining Previous Use Experience and Interest in Participating in Future Research Studies
Who cites it
69 citing papers in PubMed, 7 syntheses or guidelines pooled it, 162 citations in OpenAlex.
- Safety and efficacy of methylenedioxymethamphetamine (MDMA)-assisted psychotherapy in post-traumatic stress disorder: An overview of systematic reviews and meta-analyses.The Australian and New Zealand journal of psychiatry · 2025Pooled it
- Reconsidering evidence for psychedelic-induced psychosis: an overview of reviews, a systematic review, and meta-analysis of human studies.Molecular psychiatry · 2025Pooled it
- Side-effects of mdma-assisted psychotherapy: a systematic review and meta-analysis.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Pooled it
- Drug-drug interactions between psychiatric medications and MDMA or psilocybin: a systematic review.Psychopharmacology · 2022Pooled it
- MDMA for the treatment of misophonia, a proposal.Frontiers in psychiatry · 2022Pooled it
- Psychedelic-Assisted Psychotherapy-A Systematic Review of Associated Psychological Interventions.Frontiers in psychology · 2022Pooled it
- Pooled it
- Trial
- MDMA-assisted therapy for moderate to severe PTSD: a randomized, placebo-controlled phase 3 trial.Nature medicine · 2023Trial
- Evaluating the attitudes of mental health professionals towards trials of MDMA: a randomised vignette trial.BMJ open · 2022Trial
- The effects of MDMA-assisted therapy on alcohol and substance use in a phase 3 trial for treatment of severe PTSD.Drug and alcohol dependence · 2022Trial
- A randomized controlled trial of 3,4-methylenedioxymethamphetamine (MDMA) and fear extinction retention in healthy adults.Journal of psychopharmacology (Oxford, England) · 2022Trial
- A neurocognitive account of complex PTSD: self-modelling, affective dysregulation, and implications for MDMA-assisted and targeted psychotherapies.European journal of psychotraumatology · 2026Review
- Subjective and neurocognitive profiling of clinical doses of 3,4-methylenedioxymethamphetamine (MDMA) in healthy volunteers: implications for therapeutic use.Molecular psychiatry · 2026Review
- Informed Consent in Psychedelic-Assisted Therapy.Current topics in behavioral neurosciences · 2026Review
- Is there a place for psychedelics in sports practice?Acta neuropsychiatrica · 2025Review
- Cardiovascular effects and safety of classic psychedelics.Nature cardiovascular research · 2025Review
- MDMA-assisted therapy: challenges, clinical trials, and the future of MDMA in treating behavioral disorders.CNS spectrums · 2025Review
- Novel psychedelic interventions for post-traumatic stress disorder and their promise for precision medicine.Therapeutic advances in psychopharmacology · 2025Review
- The Role of Music in Psychedelic-Assisted Therapy: A Comparative Analysis of Neuroscientific Research, Indigenous Entheogenic Ritual, and Contemporary Care Models.Psychedelic medicine (New Rochelle, N.Y.) · 2024Article
9 more citing papers are in PubMed but not listed here.
Corrections and comments
- Retraction · 2024-08-10Concerns/Issues about Data · Concerns/Issues about Human Subject Welfare · Conflict of Interest · Ethical Violations by Author · Investigation by Journal/Publisher · Lack of IRB/IACUC Approval and/or Compliance · Objections by Author(s) · · see also: https://www.statnews.com/2024/08/11/mdma-ptsd-lykos-maps-retractions/
- Retracted
Authors and funding
8 authors at 4 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
rationalePosttraumatic stress disorder (PTSD) is a chronic condition that has wide-ranging negative effects on an individual's health and interpersonal relationships. Treatments with long-term benefits are needed to promote the safety and well-being of those suffering from PTSD.
objectivesTo examine long-term change in PTSD symptoms and additional benefits/harms after 3,4-methylenedioxymethamphetamine (MDMA)-assisted psychotherapy for treatment of PTSD.
methodsParticipants received two to three active doses of MDMA (75-125 mg) during blinded or open-label psychotherapy sessions with additional non-drug therapy sessions. PTSD symptoms were assessed using the Clinician-Administered PTSD Scale for DSM IV (CAPS-IV) at baseline, 1 to 2 months after the last active MDMA session (treatment exit), and at least 12 months post final MDMA session (LTFU). A mixed-effect repeated-measures (MMRM) analysis assessed changes in CAPS-IV total severity scores. The number of participants who met PTSD diagnostic criteria was summarized at each time point. Participants completed a long-term follow-up questionnaire.
resultsThere was a significant reduction in CAPS-IV total severity scores from baseline to treatment exit (LS mean (SE) = - 44.8 (2.82), p < .0001), with a Cohen's d effect size of 1.58 (95% CI = 1.24, 1.91). CAPS-IV scores continued to decrease from treatment exit to LTFU (LS mean (SE) = - 5.2 (2.29), p < .05), with a Cohen's d effect size of 0.23 (95% CI = 0.04, 0.43). The number of participants who no longer met PTSD criteria increased from treatment exit (56.0%) to LTFU (67.0%). The majority of participants reported benefits, including improved relationships and well-being, and a minority reported harms from study participation.
conclusionsPTSD symptoms were reduced 1 to 2 months after MDMA-assisted psychotherapy, and symptom improvement continued at least 12 months post-treatment. Phase 3 trials are investigating this novel treatment approach in a larger sample of participants with chronic PTSD.
trial registrationclinicaltrials.gov Identifier: NCT00090064, NCT00353938, NCT01958593, NCT01211405, NCT01689740, NCT01793610.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.