Eli Lilly & Co.'s Verzenio (abemaciclib), now approved for breast cancer, will compete for market share in a crowded category that already includes two rival cyclin dependent kinase 4/6 (CDK4/6) inhibitors – Pfizer Inc.'s well-entrenched Ibrance (palbociclib) and Novartis AG's newcomer Kisqali (ribociclib) – but it isn't setting out to do so based on price.
The US FDA approved Verzenio on Sept