We use cookies to help provide you with the best possible online experience. Please read our Privacy Policy for information about which cookies we use and what information we collect on our site. By continuing to use this site, you agree that we may store and access cookies on your device.
Biogen is buying Pfizer’s experimental drug PF-04958242, which is being developed for cognitive impairment associated with schizophrenia, in a deal that could be worth $590 million.