Bapineuzumab Failure Raises More Doubts About Beta Amyloid Approach In Alzheimer’s

As many observers expected, top-line results from a Phase III study show bapineuzumab doesn’t work in carriers of the ApoE4 gene, who are at highest risk for Alzheimer’s disease. An interim analysis of another Phase III study in carriers will now be “expedited,” and other studies of non-carriers will keep going, Pfizer says.

Confirming in part what many in the Alzheimer’s field have expected, Pfizer Inc.said July 23 that the intravenous Alzheimer’s disease treatment bapineuzumab has failed to hit co-primary efficacy endpoints in a Phase III trial of patients with mild-to-moderate disease who carry the risk-prone ApoE4 gene.

The top-line results from Study 302 are the first to be reported of four large studies carried out by Pfizer and Janssen Alzheimer Immunotherapy R&D LLC

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