About this trial
The primary objectives of this clinical investigation are to (1) determine the acceptability and feasibility of joining psilocybin-assisted therapy with cognitive-behavioral therapy (PA-CBT) for patients with depression, (2) optimize CBT to most effectively integrate the psilocybin experience with psychotherapy and (3) examine the clinical benefit of psilocybin as an adjunct to cognitive-behavioral therapy (CBT) for major depressive disorder.
This study is a randomized, two-arm, fixed dose trial that will test the feasibility, acceptability, and participant and therapist adherence to PA-CBT. Both treatment arms will receive two doses of psilocybin (10mg and then 25mg, separated by one month). In Phase II, participants will be randomized (1:1) to either a 12-session PA-CBT or a 6-session standard psilocybin-assisted therapy (PAT) condition (3 hours of preparation plus 3 hours of supportive therapy integration following the psilocybin experiences).
Eligibility criteria
Qualifiers
Ages 21-60,
Able to swallow capsules,
Patients with a current major depressive episode or a history of major depressive episodes based on the DSM-5 criteria (American Psychiatric Association, 2013),
Active current depressive symptoms (i.e., scores >16 on the Hamilton-Depression Rating Scale (HAM-D) covering the prior 2 weeks; Hamilton, 1986),
Disqualifiers
A personal or family history (first or second-degree) of psychosis or bipolar disorder
Resting blood pressure above 140 systolic, 90 diastolic (averaged across four separate measurements)
Meeting criteria for a DSM-5 cluster B personality disorder (narcissistic, histrionic, borderline, antisocial personality disorder),
Active suicidality (as indicated by a 3 or greater on item 3 of the HAM-D) or other psychiatric disturbance requiring acute treatment
Trial design
Treatments tested in this trial
- Psilocybin (drug)
- cognitive behavioral therapy
- Minimal supportive therapy
Treatment groups
Sponsors and collaborators
University of California, Los Angeles
Lead sponsor
National Center for Complementary and Integrative Health (NCCIH)
Collaborator