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Compass Pathways Announces Completion of Recruitment for the Phase 3 COMP005 Trial of COMP360 Psilocybin for Treatment-Resistant Depression

In This Article:

Highlights:

  • Screening closed for all sites and final participants being scheduled for dosing

  • On track for top-line 6-week primary endpoint results in late Q2

LONDON & NEW YORK, March 26, 2025--(BUSINESS WIRE)--Compass Pathways plc (Nasdaq: CMPS), a biotechnology company dedicated to accelerating patient access to evidence-based innovation, today announced the completion of recruitment in the COMP005 phase 3 trial for treatment resistant depression (TRD). The final participants are completing pre-dosing activities, including washout from anti-depressant medications, if necessary, and those eligible will receive a dose of either 25 mg of COMP360 or placebo.

"We are pleased that recruitment is complete in the 005 trial, bringing us one-step closer to delivering COMP360 as a potential first-in-class psilocybin treatment for patients with treatment resistant depression," said Kabir Nath, Chief Executive Officer of Compass Pathways. "We await completion of dosing of the last participant, a milestone that we will also announce in the coming weeks, and we look forward to sharing the results of the 6-week primary endpoint in late Q2."

COMP360 is a synthetic form of psilocybin under investigation as a treatment for certain difficult-to-treat mental health conditions when administered with psychological support.

TRD is a condition in which individuals with major depressive disorder do not respond adequately to at least two different treatments. Depression is the leading cause of disability and ill health worldwide. Up to two-thirds of people with depression are not helped by the first antidepressant medication they try. Up to a third of people with depression are failed by multiple attempts at treatment.

The pivotal phase 3 clinical program of COMP360 psilocybin treatment in TRD is the largest randomized, controlled, double-blind psilocybin treatment clinical program ever conducted. Top-line 6-week (primary endpoint) COMP005 data is expected late in the second quarter 2025 and 26-week COMP005 data is expected once all participants in the COMP006 trial have completed part A of the COMP006 trial. The COMP006 26-week data is expected in the second half of 2026.

About Compass Pathways
Compass Pathways plc (Nasdaq: CMPS) is a biotechnology company dedicated to accelerating patient access to evidence-based innovation in mental health. We are motivated by the need to find better ways to help and empower people with serious mental health conditions who are not helped by existing treatments. We are pioneering a new paradigm for treating mental health conditions focused on rapid and durable responses through the development of our investigational COMP360 psilocybin treatment, potentially a first in class treatment. COMP360 has Breakthrough Therapy designation from the US Food and Drug Administration (FDA) and has received Innovative Licensing and Access Pathway (ILAP) designation in the UK for treatment-resistant depression (TRD).