July 14, 2014 / 7:30 PM / 3 years ago

Targacept stops Alzheimer's drug trial after it fails mid-stage

July 14 (Reuters) - Targacept Inc said its experimental Alzheimer's drug did not show superiority over standard medication in a mid-stage study and that it would no longer invest in the development of the treatment.

The company's shares were down about 16.44 percent.

The drug, TC-1734, was being tested against Pfizer Inc's donepezil. (Reporting By Amrutha Penumudi; Editing by Don Sebastian)

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