Merck KGaA and Pfizer Inc said on Friday they were ending a late-stage study for their drug to treat a form of ovarian cancer in previously untreated patients.
Original source: http://feeds.reuters.com/~r/reuters/INhealth/~3/uCIl-R2TTAA/merck-kgaa-pfizer-to-end-late-stage-ovarian-cancer-treatment-study-idINKCN1OK25I