Anavex Life Sciences Earlier Announced Oral, Once Daily Blarcamesine Significantly Slowed Clinical Decline For Early Alzheimer's Disease Patients; Functional Co-primary Endpoint, ADCS-ADL, Was Trending Positive But Did Not Reach Significance At Week 48

Author: Benzinga Newsdesk | July 28, 2024 06:53pm

Anavex Life Sciences Corp. (“Anavex” or the “Company”) (NASDAQ:AVXL), a clinical-stage biopharmaceutical company developing differentiated therapeutics for the treatment of neurodegenerative, neurodevelopmental, and neuropsychiatric disorders including Alzheimer’s disease, Parkinson’s disease, Rett syndrome, schizophrenia, and other central nervous system (CNS) diseases, today presented comprehensive results from the Phase IIb/III study showing that blarcamesine (ANAVEX®2-73), once daily orally, significantly slowed clinical decline in people with early Alzheimer's disease (AD). The data were presented by Marwan Noel Sabbagh, MD, Professor of Neurology at Barrow Neurological Institute and Chairman of the Scientific Advisory Board at the 2024 Alzheimer's Association International Conference (AAIC).

Blarcamesine significantly slowed clinical progression by 38.5% and 34.6% at 48 weeks in 50 mg and 30 mg groups vs. placebo, respectively, on the prespecified primary cognitive endpoint ADAS-Cog13. As specified in the March 2024 FDA Guidance for Early AD, a sole cognitive measure can serve as the primary endpoint for early Alzheimer’s trials.1 The protocol was designed with ADAS-Cog13 and ADCS-ADL as co-primary endpoints. The functional co-primary endpoint, ADCS-ADL, was trending positive but did not reach significance at Week 48. A possible explanation is that the ADCS-ADL scale is designed for AD with overt dementia and is less sensitive for early AD.2 The prespecified key secondary composite endpoint CDR-SB, also recommended as an alternative primary endpoint for early AD in the new FDA guidance, is significant at both 30 mg and 50 mg at Week 48. The findings are supported by biomarkers from the A/T/N spectrum, including plasma Aβ42/40-ratio and reduction of brain atrophy. Blarcamesine significantly slowed brain atrophy in key regions of interest, including the whole brain by 37.6%, total grey matter by 63.5%, and lateral ventricles by 25.1%.

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