Less than a week after Clovis Oncology Inc.'s Rubraca became the first PARP inhibitor approved for prostate cancer, AstraZeneca PLC and Merck & Co. Inc.'s class leader Lynparza has become the second, and the one observers expect to dominate the market.
AZ/Merck & Co' s Lynparza Gets US Approval For Prostate Cancer
Days After Green Light For Clovis's Rival PARP
Lynparza has received the green light from the FDA for advanced prostate cancer, its fourth tumor type, and while it may not be the first PARP inhibitor to be approved for this indication, analysts are expecting the drug to lead the class.

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