NEW YORK -- U.S. antitrust and securities regulators are investigating Biogen's conduct involving its controversial Alzheimer's disease treatment developed in partnership with Japan's Eisai.
FTC and SEC seek information from American drugmaker

Japanese drugmaker Eisa's Tokyo headquarters. (Photo by Kosaku Mimura)
NEW YORK -- U.S. antitrust and securities regulators are investigating Biogen's conduct involving its controversial Alzheimer's disease treatment developed in partnership with Japan's Eisai.