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Replies to post #434240 on Anavex Life Sciences Corp (AVXL)
The trial is successful in meeting the co-primary endpoints if the significance of each endpoint is P < 0.05, or if the significance of only one co-primary endpoint is P < 0.025. If only one primary endpoint is significant at an a level of 0.025, then the secondary endpoint will be evaluated at the same level of 0.025. The trial was successful, since the differences in the least-squares mean (LSM) change from baseline to 48 weeks between the blarcamesine and placebo groups were -1.783 [95% CI, -3.314 to -0.251]; (P = 0.0226) for ADAS-Cog13, and -0.456 [95% CI, -0.831 to -0.080]; (P = 0.0175) for CDR-SB in patients with early Alzheimer’s disease.
In addition, validated biomarkers of amyloid beta pathology, plasma Aß42/40 ratio increased significantly (P = 0.048), demonstrating strong anti-amyloid effects of blarcamesine in Alzheimer’s disease patients, while MRI revealed significant reduction in brain volume loss, including whole brain (P = 0.0005), comparing treatment to placebo. In the respective safety population, common treatment-emergent adverse events included dizziness, which was transient and mostly mild to moderate in severity, and occurred in 120 participants (35.8%) during titration and in 76 participants (25.2%) during maintenance with blarcamesine and 10 (6.0%) during titration and 9 (5.6%) during maintenance with placebo.
“There is hope that new therapies for Alzheimer’s that target the disease beyond amyloid that may slow progression of the disease for many people with the earliest forms of the disease,” said Marwan Noel Sabbagh, MD, Professor of Neurology and Chairman of the Scientific Advisory Board. “The advantage of blarcamesine (ANAVEX®2-73) is that it is a small oral molecule that exerts clinical benefits on cognition and neurodegeneration and could be appealing because of its route of administration and excellent safety profile.”
This is among the first drugs to prospectively demonstrate efficacy on biomarkers of neurodegeneration.
“These data are very exciting, particularly in a study that can demonstrate objective slowing of markers of neurodegeneration,” says Michael Weiner MD, Professor of Radiology and Biomedical Imaging, Medicine, Psychiatry, and Neurology at the University of California, San Francisco (UCSF) and Principal Investigator of the Alzheimer's Disease Neuroimaging Initiative (ADNI).
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