Pfizer is advancing its gene therapy initiative with a new facility in Sanford, NC, focusing on specialized treatments using adeno-associated virus vectors. The company plans to divest its off-patent drug business, combining it with Mylan in an all-stock deal, and has also made significant acquisitions, including a 15% stake in Vivet Therapeutics for gene therapy and the purchase of Array Biopharma for $10.6 billion. Additionally, Pfizer's biosimilar Ruxience has been approved by the FDA, and it is moving to shut down underperforming manufacturing facilities in India.