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Study details
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A Study of a Deuterated Psilocin Analog (CYB003) in Humans With Major Depressive Disorder

Cybin IRL Limited
NCT IDNCT06793397ClinicalTrials.gov data as of Apr 2026
Phase

Phase 3

Target enrollment

330

Study length

about 1.4 years

Ages

18–85

Locations

32 sites in AL, AR, AZ +14

What this study is about

Researchers are testing whether CYB003, an adjunctive treatment to psychological support, can help people with major depressive disorder. The trial will last for 514 days and involve approximately 330 participants.

Simplified from trial records by PatientMatch.

What you may be asked to do

  • 1.Participate in Psychological Support
  • 2.Take CYB003

Participation Burden

What's physically and logistically required of participants.

Logistics & Travel
In-person visits

Requires travel to a study site

Physical Intervention
Standard

How treatment is administered

Treatment Assignment
Randomized & Blinded

You may get a placebo/standard care, and you won't know which.

Extracted study details

Pulled from the trial record to show what is being tested and what the study is measuring.

Endpoints

Primary: Montgomery-Asberg Depression Scale (MADRS)

Secondary: The Beck Depression Inventory - Second Edition (BDI-II), The Generalized Anxiety Disorder 7-Item Scale (GAD-7), The Quality of Life Enjoyment and Satisfaction Questionnaire - Short Form (Q-LES-Q-SF)

Body systems

Psychiatry / Mental Health