RCT of Psilocybin-assisted CBT for Depression

Trial statusRecruiting
Trial phasePhase 1, Phase 2
Trial typeInterventional
Biological sexAll
Age21-60
SponsorUniversity of California, Los Angeles

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

50 Participants
are divided into 2 treatment groups

Sponsors and collaborators

University of California, Los Angeles

Lead sponsor

National Center for Complementary and Integrative Health (NCCIH)

Collaborator