Top 10

Top 10 MDMA Papers for PTSD

Essential MDMA-assisted therapy papers for PTSD, from pilot studies to phase 3 trials and long-term follow-up.

Published June 8, 2026

MDMA-assisted therapy for PTSD has moved from early pilot studies to Phase III trials and long-term follow-up analyses.

These papers define the evidence base, limitations, durability questions, and mechanisms behind one of the most closely watched psychedelic-assisted therapy programs.

1

MDMA-assisted therapy for severe PTSD: a randomized, double-blind, placebo-controlled phase 3 study

Nature Medicine/2021/Mitchell, J., Bogenschutz, M. P., Lilienstein, A. et al.
individualopenCited 942×

This trial tests MDMA-assisted therapy for PTSD under more rigorous clinical conditions, moving the question beyond early pilot evidence. It helps readers see whether the approach can hold up when protocols are more standardised, outcomes are clearer, and follow-up becomes harder to ignore. For readers, the value is not just the result but the study design: it shows how MDMA-assisted therapy for PTSD performs when tested under more structured clinical conditions. Together with the other papers here, it connects the compound-specific evidence to the clinical question rather than treating MDMA-assisted therapy for PTSD as a single settled topic.

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2

The safety and efficacy of ±3,4-methylenedioxymethamphetamine-assisted psychotherapy in subjects with chronic, treatment-resistant posttraumatic stress disorder: the first randomized controlled pilot study

Journal of Psychopharmacology/2010/Mithoefer, M. C., Wagner, M. T., Mithoefer, A. T. et al.
individualopenCited 667×

In the first randomised controlled pilot trial, MDMA-assisted psychotherapy produced greater reductions in Clinician-Administered PTSD Scale scores than placebo in participants with chronic, treatment‑resistant post‑traumatic stress disorder. There were no drug‑related serious adverse events, adverse neurocognitive effects or clinically significant blood pressure increases, suggesting MDMA may be a safe and effective adjunct to psychotherapy in refractory PTSD. For readers, the value is not just the result but the study design: it shows how MDMA-assisted therapy for PTSD performs when tested under more structured clinical conditions.

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3

3,4-methylenedioxymethamphetamine (MDMA)-assisted psychotherapy for post-traumatic stress disorder in military veterans, firefighters, and police officers: a randomised, double-blind, dose-response, phase 2 clinical trial

Lancet Psychiatry/2018/Mithoefer, A. T., Mithoefer, M. C., Feduccia, A. A. et al.
individualopenCited 436×

This trial tests MDMA-assisted therapy for PTSD under more rigorous clinical conditions, moving the question beyond early pilot evidence. It helps readers see whether the approach can hold up when protocols are more standardised, outcomes are clearer, and follow-up becomes harder to ignore. For readers, the value is not just the result but the study design: it shows how MDMA-assisted therapy for PTSD performs when tested under more structured clinical conditions. Together with the other papers here, it connects the compound-specific evidence to the clinical question rather than treating MDMA-assisted therapy for PTSD as a single settled topic.

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4

A randomized, controlled pilot study of MDMA (±3,4-Methylenedioxymethamphetamine)- assisted psychotherapy for treatment of resistant, chronic Post-Traumatic Stress Disorder (PTSD)

Journal of Psychopharmacology/2012/Oehen, P., Traber, R., Widmer, V. et al.
individualopenCited 400×

This trial tests MDMA-assisted therapy for PTSD under more rigorous clinical conditions, moving the question beyond early pilot evidence. It helps readers see whether the approach can hold up when protocols are more standardised, outcomes are clearer, and follow-up becomes harder to ignore. For readers, the value is not just the result but the study design: it shows how MDMA-assisted therapy for PTSD performs when tested under more structured clinical conditions. Together with the other papers here, it connects the compound-specific evidence to the clinical question rather than treating MDMA-assisted therapy for PTSD as a single settled topic.

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5

MDMA-assisted therapy for moderate to severe PTSD: a randomized, placebo-controlled phase 3 trial

Nature Medicine/2023/Mitchell, J., Ot’alora G, M., van der Kolk, B. et al.
individualpaywallCited 399×

This trial tests MDMA-assisted therapy for PTSD under more rigorous clinical conditions, moving the question beyond early pilot evidence. It helps readers see whether the approach can hold up when protocols are more standardised, outcomes are clearer, and follow-up becomes harder to ignore. For readers, the value is not just the result but the study design: it shows how MDMA-assisted therapy for PTSD performs when tested under more structured clinical conditions. Together with the other papers here, it connects the compound-specific evidence to the clinical question rather than treating MDMA-assisted therapy for PTSD as a single settled topic.

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6

Durability of improvement in post-traumatic stress disorder symptoms and absence of harmful effects or drug dependency after 3,4-methylenedioxymethamphetamine-assisted psychotherapy: a prospective long-term follow-up study

Journal of Psychopharmacology/2012/Mithoefer, M. C., Wagner, M. T., Mithoefer, A. T. et al.
individualopenCited 372×

This paper helped define the clinical evidence for MDMA-assisted therapy for PTSD, including what benefits appear durable and what still needs careful testing. It also shows why therapy structure, follow-up, and participant selection matter as much as the acute drug session. It adds a concrete angle on MDMA-assisted therapy for PTSD, helping readers understand the topic through evidence rather than broad claims alone. Together with the other papers here, it connects the compound-specific evidence to the clinical question rather than treating MDMA-assisted therapy for PTSD as a single settled topic.

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7

MDMA-assisted psychotherapy for treatment of PTSD: study design and rationale for phase 3 trials based on pooled analysis of six phase 2 randomized controlled trials

Psychopharmacology/2019/Mithoefer, M. C., Feduccia, A. A., Jerome, L. et al.
individualopenCited 362×

This trial tests MDMA-assisted therapy for PTSD under more rigorous clinical conditions, moving the question beyond early pilot evidence. It helps readers see whether the approach can hold up when protocols are more standardised, outcomes are clearer, and follow-up becomes harder to ignore. For readers, the value is not just the result but the study design: it shows how MDMA-assisted therapy for PTSD performs when tested under more structured clinical conditions. Together with the other papers here, it connects the compound-specific evidence to the clinical question rather than treating MDMA-assisted therapy for PTSD as a single settled topic.

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8

3,4-Methylenedioxymethamphetamine-assisted psychotherapy for treatment of chronic posttraumatic stress dis - order: a randomized phase 2 controlled trial

Journal of Psychopharmacology/2018/Ot'alora G, M., Grigsby, J., Poulter, B. et al.
individualopenCited 227×

In this randomised phase 2 dose‑response trial, two active MDMA doses given with eight‑hour psychotherapy sessions produced larger reductions in clinician‑rated PTSD severity than a low dose. Benefits were sustained at 12‑month follow‑up and the treatment was well tolerated with no drug‑related serious adverse events. For readers, the value is not just the result but the study design: it shows how MDMA-assisted therapy for PTSD performs when tested under more structured clinical conditions. Together with the other papers here, it connects the compound-specific evidence to the clinical question rather than treating MDMA-assisted therapy for PTSD as a single settled topic.

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9

MDMA-assisted psychotherapy for PTSD: are memory reconsolidation and fear extinction underlying mechanisms?

Progress in Neuro-Psychopharmacology and Biological Psychiatry/2018/Feduccia, A. A., Mithoefer, M. C.
metaopenCited 210×

The review (2018) suggests how memory reconsolidation and fear extinction may play a significant role in the potent therapeutic effects of MDMA in the treatment of PTSD. It adds a concrete angle on MDMA-assisted therapy for PTSD, helping readers understand the topic through evidence rather than broad claims alone. Together with the other papers here, it connects the compound-specific evidence to the clinical question rather than treating MDMA-assisted therapy for PTSD as a single settled topic.

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10

MDMA-assisted psychotherapy using low doses in a small sample of women with chronic posttraumatic stress disorder

Journal of Psychoactive Drugs/2008/Bouso, J. C., Doblin, R., Farré, M. et al.
individualopenCited 203×

The small double-blind placebo-controlled study studied the safety (psychological & physiological) of a low dose of MDMA in women with chronic PTSD and found no adverse effects. It adds a concrete angle on MDMA-assisted therapy for PTSD, helping readers understand the topic through evidence rather than broad claims alone. Together with the other papers here, it connects the compound-specific evidence to the clinical question rather than treating MDMA-assisted therapy for PTSD as a single settled topic.

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How we choose these papers

These lists are curated by hand, not generated by an algorithm. We weigh citation counts, study quality, and lasting influence on the field, and we revisit each list as new research lands. Read more about how Blossom decides what to include in our curation explainer.