atai Life Sciences Announces Completion of Enrollment in Phase 2b Clinical Trial Evaluating BPL-003 for Treatment-Resistant Depression

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atai Life Sciences
atai Life Sciences

- The eight-week, quadruple-masked, dose-finding, core stage of the Phase 2b clinical trial is evaluating the efficacy and safety of a single dose of BPL-003 (mebufotenin benzoate) in patients with treatment-resistant depression

- The open-label extension stage of the Phase 2b clinical trial continues to enroll patients to evaluate the safety and efficacy of a second dose of BPL-003

- As previously reported, the Phase 2a study of BPL-003 in patients with treatment-resistant depression showed rapid and lasting antidepressant effects from a single dose, and patients were deemed ready for discharge within an average time of less than two hours after dosing

- Topline results from the core stage of the Phase 2b clinical trial are expected in mid-2025

NEW YORK and BERLIN, March 05, 2025 (GLOBE NEWSWIRE) -- atai Life Sciences (NASDAQ: ATAI) (“atai” or “Company”), a clinical-stage biopharmaceutical company aiming to transform the treatment of mental health disorders, today announced the completion of patient enrollment in the eight-week, double-blind, core stage of the global Phase 2b clinical trial evaluating BPL-003 (mebufotenin benzoate) in patients with treatment-resistant depression (TRD). BPL-003 is Beckley Psytech’s patent-protected, proprietary intranasal formulation of mebufotenin benzoate, administered via a nasal spray device used in a previously approved drug product. BPL-003 is designed to deliver rapid and durable effects from a single dose, with a short time in clinic. Topline results from the core stage of the Phase 2b clinical trial are expected in mid-2025.

“We are impressed by the Beckley Psytech team’s execution of the Phase 2b clinical trial of BPL-003 in patients with treatment-resistant depression, which is the largest controlled trial of mebufotenin and the first and only Phase 2b clinical trial to investigate mebufotenin in the U.S.,” stated Srinivas Rao, M.D., Ph.D., Chief Executive Officer and Co-founder of atai. “The promising data from earlier clinical studies of BPL-003 have demonstrated that a single dose can induce rapid, significant, and lasting antidepressant effects, further reinforcing our confidence in its potential to revolutionize treatment for difficult-to-treat depression. We look forward to the topline results from the eight-week core stage of the Phase 2b clinical trial of BPL-003, which remains on track for mid-2025.”

The eight-week, quadruple-masked, dose-finding, core stage of the Phase 2b clinical trial (NCT05870540) is evaluating the efficacy and safety of a single medium (8mg) or high (12mg) dose of BPL-003 against a sub-perceptual dose. The trial enrolled 196 patients with moderate-to-severe depression that had failed to respond to at least two or more prior treatments in the current episode of depression across 38 sites in six countries. Patients are followed for eight weeks, and efficacy is assessed at various timepoints by centralized, blinded raters using the Montgomery-Asberg Depression Rating Scale (MADRS).