atai Starts Phase 1 IV-to-Subcutaneous Bridging Study of R-Ketamine in Depression

 atai Life Sciences (NASDAQ: ATAI) (“atai”), a clinical-stage biopharmaceutical company aiming to transform the treatment of mental health disorders, announced that the first subject has been dosed in Perception Neuroscience’s Phase 1 intravenous-to-subcutaneous bridging study of PCN-101 (R-ketamine).

This Phase 1 open-label study is designed to assess the safety, tolerability, and pharmacokinetic profile of 60mg, 90mg and 120mg of PCN-101 delivered subcutaneously as compared to 60mg of PCN-101 delivered intravenously (IV). The trial will enroll approximately 16 healthy volunteers across the four cohorts and is expected to be completed in the middle of 2023.

In January 2023, atai announced results from the Phase 2a proof-of-concept study evaluating a single IV administration of PCN-101 in patients with treatment-resistant depression across three arms – 30mg, 60mg and placebo. While the results did not reach statistical significance on the primary endpoint, PCN-101 demonstrated an encouraging safety profile and signals of efficacy across all timepoints out to two weeks, potentially indicating a sustained duration of effect.

This IV-to-subcutaneous bridging study will potentially inform dosing regimens of the new subcutaneous formulation that may optimize the therapeutic index—the balance of safety, tolerability and efficacy—of PCN-101 in future studies, thereby supporting further exploration of the potential of R-ketamine as a rapid acting anti-depressant for at-home use.

atai continues to work with Perception Neuroscience to explore strategic partnership options.

https://finance.yahoo.com/news/atai-life-sciences-announces-first-105900051.html