Wyeth, Elan suspend Alzheimer's vaccine study

Wyeth and Elan have suspended dosing patients in a mid-stage study of the experimental Alzheimer's vaccine ACC-001 after seeing one of the patients in the study develop skin lesions. Studies of ACC-001 that have been mounted outside of the U.S. have also been suspended. Researchers, though, quickly sought to reassure investors that another late-stage program for AAB-001 wasn't affected by the unexplained case of lesions. AAB-001, or bapineuzumab, has demonstrated an improvement in cognitive function in Alzheimer's patients in a small study and is being closely followed by the investment community.

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