Next-Gen Psilocybin Shows Significant Reduction in Depression After Single Dose

Next-Gen Psilocybin Shows Significant Reduction in Depression After Single Dose

Shannon Ratliff
Shannon Ratliff
November 02, 2023
1 min

Cybin Inc., a clinical-stage biopharmaceutical company, announced groundbreaking interim results from its Phase 2 clinical trial on October 31, 2023. The report showcases the potential of its proprietary deuterated psilocybin analog, CYB003, for the treatment of major depressive disorder (MDD). The trial results revealed a rapid and robust reduction in depression symptoms three weeks after a single 12mg dose of CYB003, with 53.3% of patients experiencing at least a 50% reduction in symptoms and 20% achieving remission, no longer meeting the criteria for clinical depression.

This novel next-generation psilocybin treatment offers a quicker onset and shorter duration of effects than traditional antidepressants, which typically take several weeks to show any benefits. CYB003 outperformed current standard treatments, delivering a mean 14-point decrease on the Montgomery-Asberg Depression Rating Scale (MADRS), significantly greater than the 1.82-point improvement seen with selective serotonin reuptake inhibitors (SSRIs).

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The encouraging findings from this trial highlight CYB003’s potential to redefine treatment standards for depression. With a favorable safety and tolerability profile and no serious drug-related adverse events, these interim results are promising for future applications. Cybin plans to progress to larger international, multisite Phase 3 trials in early 2024 to further establish the safety and efficacy of CYB003 in MDD patients.

Cybin is not alone in this quest, as Compass Pathways is also conducting a substantial Phase 3 clinical trial for psilocybin therapy, with potential FDA approval on the horizon if positive outcomes continue.

With complete top-line data anticipated in Q4 2023 and 12-week durability data expected in the first quarter of 2024, Cybin aims to engage with the FDA to discuss Phase 3 trial designs. This comes alongside efforts to start a Phase 3 study for CYB003 and report Phase 1 findings for CYB004 and SPL028, Cybin’s novel DMT compounds, by the end of 2023. The latter could initiate a Phase 2 study for generalized anxiety disorder in early 2024.

The significant improvement in depressive symptoms after a single dose of CYB003 may mark a significant step forward in mental health treatment, potentially benefiting nearly one billion people affected by mental health disorders worldwide. The biotech industry and the alternative medicine community are closely watching as these developments may pave the way for new, more effective treatments for depression and other mental health conditions.


Shannon Ratliff

Shannon Ratliff

Head of Content

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