Group 1: Acquisition Details - GSK has signed an agreement to acquire efimosfermin alfa from Boston Pharmaceuticals for an upfront payment of $1.2 billion, with potential milestone payments of up to $800 million [5] - Efimosfermin is an investigational long-acting variant of FGF21 protein aimed at treating steatotic liver disease (SLD) and is currently in mid-stage studies for metabolic dysfunction-associated steatohepatitis (MASH) [2][3] Group 2: Drug Development and Market Potential - GSK plans to develop efimosfermin as a monotherapy and in combination with its investigational siRNA therapeutic, GSK'990, also targeting SLD [3] - The company believes efimosfermin could become the new standard-of-care for MASH, with a commercial launch expected in 2029 [4] Group 3: Strategic Intent and Future Outlook - The acquisition aligns with GSK's strategy to expand its pipeline as key drugs approach the end of their exclusivity period, particularly the dolutegravir HIV franchise expiring in 2028-2029 [9] - GSK aims to generate sales exceeding £40 billion by 2031, focusing on therapeutic areas such as HIV, immunology/respiratory, and oncology, with 18 candidates in late-stage development or regulatory review [10] Group 4: Recent Product Launches and Regulatory Updates - GSK expects to launch five new products or line extensions this year, with two already approved by the FDA [11] - Regulatory decisions on three additional candidates are pending, with final decisions expected throughout 2025 [11] Group 5: Setbacks in Drug Development - GSK has decided to end the development of the anti-TIGIT antibody belrestotug, which did not meet established efficacy criteria [12][13] - This decision represents a setback for GSK's oncology ambitions, following a $625 million upfront payment made in 2021 for the rights to the drug [13]