Study Comparing Three Doses of MDMA Along With Psychotherapy in Veterans With Posttraumatic Stress Disorder

Participants received preparatory non-drug therapy sessions then two blinded eight-hour MDMA-assisted therapy sessions (125 mg group received a third open-label session); supplemental half-dose given 1.5–2.5 hours after initial dose when agreed.

Outcomes include PTSD and depression symptoms, quality of life, posttraumatic growth, vital signs and adverse events assessed acutely and at follow-ups up to 12 months.