GSK to Boost Respiratory & Immunology Pipeline With $2.2B RAPT Buyout

Core Insights - GSK plc has entered into a definitive agreement to acquire RAPT Therapeutics for an estimated equity value of $2.2 billion, which will enhance GSK's pipeline with RAPT's ozureprubart, a long-acting anti-IgE monoclonal antibody currently in phase IIb study for food allergy protection [1][6]. Company Summary - The acquisition is expected to close in the first quarter of 2026 and will strengthen GSK's respiratory, immunology, and inflammation pipeline [2][6]. - GSK will pay $58.00 per share to RAPT's shareholders, resulting in an upfront investment of $1.9 billion after accounting for cash acquired [4][6]. - GSK will gain global rights to the ozureprubart program, excluding certain regions in Asia, and will be responsible for success-based milestones and royalties to RAPT's partner [7]. Product Development - Ozureprubart is currently being evaluated in a phase IIb study for prophylactic protection against food allergens, with data expected in 2027 and phase III studies planned for at-risk adult and pediatric populations [8]. - The product is anticipated to enhance GSK's commercial presence in the allergy space, offering potentially less frequent dosing compared to current treatments [9]. Industry Context - The biotech and pharma sector is experiencing a surge in merger and acquisition activity as companies seek to diversify revenue streams amid declining sales of flagship drugs [10]. - Recent notable acquisitions in the industry include Merck's acquisition of Cidara Therapeutics for approximately $9.2 billion and J&J's acquisition of Halda Therapeutics for $3.05 billion, indicating a trend towards portfolio expansion and innovation [11][12].