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Safety and Efficacy of Psilocybin for Body Dysmorphic Disorder

Safety and Efficacy of Psilocybin for Body Dysmorphic Disorder

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04656301
Enrollment
12
Registered
2020-12-07
Start date
2021-02-26
Completion date
2022-11-02
Last updated
2023-03-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Body Dysmorphic Disorders

Brief summary

In this pilot study 12 adult outpatients with body dysmorphic disorder that has not responded to at least one adequate trial of a serotonin reuptake inhibitor will be treated openly with a single oral dose of psilocybin. Followup visits to monitor safety and clinical outcome will be conducted over a 3 month period.

Detailed description

In this pilot study, up to 12 adult outpatients with body dysmorphic disorder that has not responded to at least one adequate trial of a serotonin reuptake inhibitor will be treated openly with a single oral dose of psilocybin. Procedures will follow those previously established in depression studies of psilocybin. Patients will receive intensive preparation and support from two therapists, including 8-9 hours accompanying the patient on the day of medication administration in the Biological Studies Unit of New York State Psychiatric Institute. Followup visits to monitor safety and clinical outcome will be conducted at day 1, week1, and months 1,2, and 3 post-administration. Resting state function magnetic resonance imaging will be conducted prior to and one day after psilocybin administration to assess the effect of medication on brain circuits.

Interventions

DRUGPsilocybin

A single dose of psilocybin 25 mg will be administered orally in the Biological Studies Unit of New York State Psychiatric Institute

Sponsors

COMPASS Pathways
CollaboratorINDUSTRY
University of California, Los Angeles
CollaboratorOTHER
New York State Psychiatric Institute
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 55 Years
Healthy volunteers
No

Inclusion criteria

* Body dysmorphic disorder of at least moderate severity, non-delusional subtype, for \>6 months * History of intolerance of, or nonresponse to, a prior adequate trial of a serotonin reuptake inhibitor (SSRI) or serotonin-norepinephrine reuptake inhibitor (SNRI) * Currently in psychotherapy (other than cognitive behavioral therapy (CBT) for body dysmorphic disorder

Exclusion criteria

* Current major depressive disorder of greater than moderate severity * Other significant psychiatric or medical comorbidity or conditions that could interfere with safety of participation or interpretation of outcomes * Use of: investigational medication within 3 months of baseline; depot antipsychotic within 6 months of baseline; serotonergic medication within 2 weeks of baseline (6 weeks for fluoxetine). * Females who are pregnant, breastfeeding, or sexually active and not willing to use adequate contraception * Enrollment in any investigational drug or device study in past 30 days * Prior adverse effects from psilocybin

Design outcomes

Primary

MeasureTime frameDescription
Body Dysmorphic Disorder Modification of the Yale-Brown Obsessive Compulsive Disorder ScaleFrom baseline (day -1) up to 3 months post-doseThe Yale-Brown Obsessive Compulsive Scale Modified for Body Dysmorphic Disorder (BDD-YBOCS) is a 12-item, semi-structured, rater-administered measure that assesses body dysmorphic disorder severity during the past week. Scores for each item range from 0 (no symptoms) to 4 (extreme symptoms); the total score ranges from 0 to 48, with higher scores reflecting more severe symptoms.

Countries

United States

Participant flow

Participants by arm

ArmCount
Psilocybin
A single dose of Psilocybin 25mg p.o. Psilocybin: A single dose of psilocybin 25 mg will be administered orally in the Biological Studies Unit of New York State Psychiatric Institute
12
Total12

Baseline characteristics

CharacteristicPsilocybin
Age, Continuous34.31 years
STANDARD_DEVIATION 8.86
Body Dysmorphic Disorder Modification of the Yale-Brown Obsessive Compulsive Disorder Scale29.17 scale score
STANDARD_DEVIATION 4.6
Ethnicity (NIH/OMB)
Hispanic or Latino
0 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
12 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants
Race (NIH/OMB)
Asian
3 Participants
Race (NIH/OMB)
Black or African American
0 Participants
Race (NIH/OMB)
More than one race
0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants
Race (NIH/OMB)
Unknown or Not Reported
0 Participants
Race (NIH/OMB)
White
9 Participants
Region of Enrollment
United States
12 participants
Sex: Female, Male
Female
8 Participants
Sex: Female, Male
Male
4 Participants

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 12
other
Total, other adverse events
11 / 12
serious
Total, serious adverse events
0 / 12

Outcome results

Primary

Body Dysmorphic Disorder Modification of the Yale-Brown Obsessive Compulsive Disorder Scale

The Yale-Brown Obsessive Compulsive Scale Modified for Body Dysmorphic Disorder (BDD-YBOCS) is a 12-item, semi-structured, rater-administered measure that assesses body dysmorphic disorder severity during the past week. Scores for each item range from 0 (no symptoms) to 4 (extreme symptoms); the total score ranges from 0 to 48, with higher scores reflecting more severe symptoms.

Time frame: From baseline (day -1) up to 3 months post-dose

ArmMeasureValue (MEAN)Dispersion
PsilocybinBody Dysmorphic Disorder Modification of the Yale-Brown Obsessive Compulsive Disorder Scale18.42 score on a scaleStandard Deviation 9.8
p-value: <0.001t-test, 2 sided

Source: ClinicalTrials.gov · Data processed: Feb 5, 2026