The Safety and Efficacy of Psilocybin in Participants With Treatment Resistant Depression (P-TRD)
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ClinicalTrials.gov Identifier: NCT03775200 |
Recruitment Status :
Completed
First Posted : December 13, 2018
Results First Posted : April 24, 2023
Last Update Posted : April 24, 2023
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Treatment Resistant Depression | Drug: Psilocybin | Phase 2 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 233 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | The Safety and Efficacy of Psilocybin in Participants With Treatment Resistant Depression |
Actual Study Start Date : | March 1, 2019 |
Actual Primary Completion Date : | July 30, 2021 |
Actual Study Completion Date : | September 27, 2021 |

Arm | Intervention/treatment |
---|---|
Experimental: Low dose
Low dose Psilocybin
|
Drug: Psilocybin
Dose-finding |
Experimental: Medium dose
Medium dose Psilocybin
|
Drug: Psilocybin
Dose-finding |
Experimental: High dose
High dose Psilocybin
|
Drug: Psilocybin
Dose-finding |
- Montgomery Asberg Depression Rating Scale (MADRS) Change From Baseline to Week 3 [ Time Frame: Change from Baseline to Week 3 ]MADRS is a clinician-rated scale measuring depression symptom severity, consisting of 10 items, each scored from 0 (normal) to 6 (severe), for a total possible score of between 0 to 60; higher scores denote greater severity. Response >= 50% decrease and remission <= 10 total score.
- MADRS Change From Baseline to Week 3, Sensitivity Analysis [ Time Frame: Change from Baseline to Week 3 ]MADRS is a clinician-rated scale measuring depression symptom severity, consisting of 10 items, each scored from 0 (normal) to 6 (severe), for a total possible score of between 0 to 60; higher scores denote greater severity. Response >= 50% decrease and remission <= 10 total score.

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Diagnosis of TRD
Exclusion Criteria:
- Other comorbidities

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03775200

Documents provided by COMPASS Pathways:
Responsible Party: | COMPASS Pathways |
ClinicalTrials.gov Identifier: | NCT03775200 |
Other Study ID Numbers: |
COMP001 |
First Posted: | December 13, 2018 Key Record Dates |
Results First Posted: | April 24, 2023 |
Last Update Posted: | April 24, 2023 |
Last Verified: | April 2023 |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Depression Depressive Disorder Depressive Disorder, Treatment-Resistant Behavioral Symptoms Mood Disorders |
Mental Disorders Psilocybin Hallucinogens Physiological Effects of Drugs Psychotropic Drugs |