Pfizer Inc.'s 20-valent pneumococcal vaccine Prevnar 20 was approved by the US Food and Drug Administration on 9 June, about one month ahead of an expected new pneumococcal vaccine from Merck & Co., Inc.. It’s an important approval for Pfizer’s life cycle management strategy as it attempts to maintain sales of its top-selling Prevnar franchise in the face of new competition.
The action date for Merck & Co.’s 15-valent vaccine V114 is 18 July. Pfizer said its new vaccine, which is...







