The non-profit Multidisciplinary Association for Psychedelic Studies (MAPS) today announced that the U.S. Food and Drug Administration (FDA) has granted Breakthrough Therapy Designation to MDMA for the treatment of posttraumatic stress disorder (PTSD). MAPS and the FDA have also reached agreement under the Special Protocol Assessment Process (SPA) for the design of two upcoming Phase 3 trials (MAPP1 and MAPP2) of MDMA-assisted psychotherapy for patients with severe PTSD.

MDMA-assisted psychotherapy is a novel treatment package that combines psychotherapeutic techniques with three administrations of MDMA as a pharmacological adjunct. By granting Breakthrough Therapy Designation, the FDA has agreed that this treatment may have a meaningful advantage and greater compliance over available medications for PTSD.

The first Phase 3 trial (MAPP1), "A Randomized, Double-Blind, Placebo-Controlled, Multi-Site Phase 3 Study of the Efficacy and Safety of Manualized MDMA-Assisted Psychotherapy for the Treatment of Severe Posttraumatic Stress Disorder," will begin enrolling subjects in Spring 2018, after the completion of an open-label lead-in training study at Phase 3 sites starting this fall.

[...] The Phase 3 trials will assess the efficacy and safety of MDMA-assisted psychotherapy in 200-300 participants with PTSD, aged 18 and older, at sites in the U.S., Canada, and Israel. Participants will be randomized to receive three day-long sessions of either MDMA or placebo in conjunction with psychotherapy over a 12-week treatment period, along with 12 associated 90-minute non-drug preparatory and integration sessions. The primary endpoint will be the Clinician Administered PTSD Scale (CAPS-5), as assessed by a blinded pool of independent raters.

In MAPS' completed Phase 2 trials with 107 participants, 61% no longer qualified for PTSD after three sessions of MDMA-assisted psychotherapy two months following treatment. At the 12-month follow-up, 68% no longer had PTSD. All Phase 2 participants had chronic, treatment-resistant PTSD, and had suffered from PTSD for an average of 17.8 years.