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Compass Pathways achieves primary endpoint in Phase 3 trial of COMP360

Compass Pathways (CMPS) announced the achievement of the primary endpoint in the ongoing Phase 3 COMP005 trial, the first of two Phase 3 trials evaluating COMP360, a synthetic, proprietary formulation of psilocybin, for treatment-resistant depression. The primary endpoint is the difference in change from baseline in the Montgomery-Asberg Depression Rating Scale scores between the active treatment group and the placebo group at week 6. A single dose of COMP360 25 mg versus placebo demonstrated a highly statistically significant reduction in symptom severity with a p-value of less than0.001 and a clinically meaningful difference of -3.6 in change at the primary endpoint. The Company plans to discuss these preliminary COMP005 data with the U.S. Food and Drug Administration, which has not yet reviewed the data. The ongoing Phase 3 COMP005 trial is the first study of an investigational, synthetic psilocybin, and the first classic psychedelic to report Phase 3 efficacy data. This randomized, double-blind, placebo-controlled study, which dosed 258 participants with TRD across 32 sites in the United States, aims to assess the efficacy and safety of a single dose of COMP360 25 mg versus placebo for reducing symptom severity in TRD. Key COMP005 Findings: Efficacy Data: Single dose of COMP360 25 mg versus placebo with a mean treatment difference of -3.6 points, 95% CI; pless than0.001; Safety Data: Based on the latest review of the data for the 005 and 006 studies, safety findings are consistent with previous studies of COMP360 and there are no new or unexpected safety findings. From this review of the data, there is no evidence of a clinically meaningful imbalance between treatment arms in suicidality in either study. “The positive top-line results at week 6 from the COMP005 trial underscore the innovative potential of psilocybin treatment in mental health care for which Compass Pathways continues to pave the way,” said Kabir Nath, CEO. “We are proud of this significant progress, which reflects our scientific rigor, operational excellence and steadfast commitment to serving patients living with TRD. We eagerly anticipate further insights once we have the full dataset, and also look forward to findings from COMP006, which will explore the efficacy of two fixed doses. We remain focused on our goal of transforming the landscape of mental health treatment.”

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