ADEPT Psilocybin-Assisted Therapy With DBT for Borderline Personality Disorder

ADEPT is an open-label proof-of-concept study designed to assess the safety and tolerability of combining psilocybin-assisted therapy with Dialectical Behavior Therapy in participants with borderline personality disorder.

The study will enroll up to 18 participants who have a confirmed DSM-5 diagnosis of borderline personality disorder and are enrolled in the M Health Fairview Dialectical Behavior Therapy program. Participants must have been enrolled in DBT for at least one month and must have consistent attendance in both group and individual therapy.

The study intervention includes two 25 mg doses of psilocybin administered during supervised dosing visits. Three preparation therapy visits will occur before the first dosing visit. The first dosing visit will be followed by three integration therapy visits. A second psilocybin dosing visit will occur approximately 21 days later, followed by three additional integration therapy visits. Participants will complete a final follow-up visit at week 18, approximately 12 weeks after the second dosing visit.

Participants will continue their usual DBT program while enrolled in the study. The M Health Fairview DBT program includes weekly individual therapy, group therapy skills development, and access to phone coaching.

The primary focus of the study is safety and tolerability. Participants will be monitored during and after dosing, and adverse events, treatment-emergent adverse events, serious adverse events, suicidal ideation, challenging experiences, and psychedelic-related side effects will be assessed. Secondary outcomes will evaluate changes in borderline personality disorder symptoms, emotion regulation, depressive symptoms, quality of life, treatment credibility and expectancy, mystical experience, and continued participation in DBT after psilocybin-assisted therapy.