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

Trial statusRecruiting
Trial phasePhase 3
Trial typeInterventional
Biological sexAll
Age18-85
SponsorCybin IRL Limited

About this trial

The purpose of this study is to determine the efficacy, safety and tolerability of CYB003 compared to matching placebo as adjunctive treatment in patients with MDD.

For more information about the EMBRACE study, including participating study locations, and to register your interest in learning more about participation, please visit the study website: https://embrace-mdd-trial.com/

Eligibility criteria

Qualifiers

Age18 to 85 years.

Participant has a diagnosis of MDD (single or recurrent episode as defined by DSM-5 TR [if single episode, duration of ≥4 weeks and ≤24 months] and established as per evaluation by the Investigator. The first MDD episode must have occurred prior to age 60.

Moderate to severe depression at Screening and Baseline, independently confirmed.

Participants have been on a stable dose of antidepressant medication (label specified) at an adequate dose in the last 4 weeks prior to Screening and has had an inadequate response (less than 50% improvement), as judged by the Investigator.

Disqualifiers

Current or previously diagnosed schizophrenia spectrum or other psychotic disorders, including schizophrenia, schizoaffective disorder, schizotypal disorder, schizophreniform disorder, brief psychotic disorder, current or previous history of bipolar disorder, or current borderline personality disorder.

Participants with a medical diagnosis of attention deficit hyperactivity disorder (ADHD) will be excluded if currently taking medication for ADHD.

Family history of schizophrenia, schizoaffective disorder, or bipolar disorder type 1 (first-degree relatives).

Significant suicide risk within the past 6 months, during the Screening Period, or at Baseline; or (b) suicidal behaviors within 12 months of Screening; or (c) clinical assessment of significant suicidal risk during clinical interview; or (d) non-suicidal self-injury within 12 months of Screening.

Trial design

Treatments tested in this trial

  • CYB003
  • Psychological Support

Treatment groups

330 Participants
are divided into 3 treatment groups

Sponsors and collaborators

Cybin IRL Limited

Lead sponsor

Worldwide Clinical Trials

Collaborator