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NCT05711940PHASE3ACTIVE_NOT_RECRUITING

Efficacy, Safety, and Tolerability of Two Administrations of COMP360 in Participants With TRD

A Phase III, Multicentre, Randomised, Double-blind, Controlled Study to Investigate the Efficacy, Safety, and Tolerability of Two Administrations of COMP360 in Participants With Treatment-resistant Depression

Sponsor: COMPASS Pathways

No open prediction endpoints

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Key Facts

Study type
INTERVENTIONAL
Conditions
Treatment Resistant Depression
Interventions
Psilocybin
Enrollment
572 participants
Primary completion
Feb 2026
Study completion
Dec 2026
First posted
Feb 2023
Last updated
Jan 2026

Primary Endpoints (CT.gov)

COMP360 25 mg versus COMP360 1 mg for the change from baseline in MADRS total score.

Time frame: Week 6

Secondary Endpoints

COMP360 25 mg versus COMP360 1 mg for the change from baseline in Sheehan Disability Scale (SDS) total score.

COMP360 25 mg versus COMP360 10 mg for the change from baseline in MADRS total score.

COMP360 25 mg versus COMP360 10 mg for the change from baseline in Sheehan Disability Scale (SDS) total score.

Eligibility Criteria

Key Inclusion Criteria: 1. Aged ≥18 years at Screening 2. Major depression without psychotic features (single or recurrent episode as informed by the Diagnostic and Statistical Manual of Mental Disorders, 5th edition \[DSM-5\]) 3. If the current major depressive episode is the participant's first lifetime episode of depression, the length of the current episode must be ≥3 months and ≤2 years at Screening 4. MADRS total score ≥20 at Screening and Baseline to ensure at least moderate severity of depression 5. TRD, defined as failure to respond to an adequate dose and duration of two, three, or four different pharmacological treatments for the current episode as determined through the Massachusetts General Hospital Antidepressant Treatment Response Questionnaire (MGH-ATRQ) and using the supplementary advice on additional antidepressants not included in MGH-ATRQ 6. At Screening, agreement to discontinue all prohibited medications Key Exclusion Criteria: 1. Prior or ongoing bipolar disor

Read full criteria on CT.gov →

✦ Analyst Commentary

Expert commentary on why this trial matters and what to watch for.

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Source

Open on ClinicalTrials.gov

Related Program

Psilocybin COMP360 (COMP006)

COMPASS Pathways

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