Pfizer Inc. has acquired rights to respiratory syncytial virus (RSV) drug candidate sisunatovir from Lianbio Co. Ltd. in a deal worth up to $155 million covering development and commercialization rights in mainland China, Hong Kong, Macau and Singapore. With this agreement, Pfizer now holds global development and commercialization rights to the candidate, an orally administered fusion inhibitor is designed to block RSV replication by inhibiting F-mediated fusion with the host cell.

Sotyktu (deucravacitinib), the tyrosine kinase 2 (TYK2) inhibitor for psoriasis from Bristol Myers Squibb Co., is “a good first-in-class” drug, said Nimbus Therapeutics LLC CEO Jeb Keiper, but his firm may have the best in class, ready for phase III trials. Takeda Pharmaceutical Co. Ltd. apparently believes so. The company has agreed to pay $4 billion up front and pledge as much as $2 billion more in potential milestone payments to acquire Nimbus’s wholly owned subsidiary, Nimbus Lakshmi Inc., thereby bringing aboard the TYK2 prospect called NDI-034858.

Full-Life Technologies Ltd. reported that it will acquire Focus-X Therapeutics Inc. to expand its radiopharmaceutical oncology therapy pipeline in a deal worth up to $245 million.

In a massive deal that is one of the year’s biggest, Akeso Inc. signed a collaboration and license deal with Summit Therapeutics Inc. to out-license its bispecific antibody, ivonescimab (AK-112), for development and commercialization in the U.S., Canada, Europe and Japan.

Tenacia Biotechnology Co. Ltd. has acquired exclusive greater China rights to certain formulations of Marinus Pharmaceuticals Inc.’s seizure therapy, ganaxolone (Ztalmy), in a deal worth up to $266 million. Under the terms, Shanghai-based Tenacia now has the rights to develop and commercialize current oral and intravenous dose formulations of ganaxolone in mainland China, Hong Kong, Macao and Taiwan. It also gained the right to the first negotiation for a new formulation of the drug in the future.

Nona Biosciences Co. Ltd., a subsidiary of Harbour Biomed Therapeutics Ltd. launched in November to provide “idea to IND” services, has struck a deal with Moderna Inc. to develop nucleic acid-based immunotherapies. The candidates will be based on Harbour’s heavy chain only antibody discovery platform.

AI drug discovery specialist Insilico Medicine Inc. has landed a multiyear research deal with Sanofi SA to develop candidates for up to six new targets in undisclosed indications. The collaboration included $21.5 million up front for Insilico, and as much as $1.2 billion in additional payments from Sanofi if key research, development and sales milestones are met. The agreement also includes mid-single to up to low double-digit tiered royalties for any products developed.

Shares of Oyster Point Pharma Inc. (NASDAQ:OYST) soared to $11.57, or 38.6% on word of the buyout by Viatris Inc., which is also taking over privately held, development-stage Famy Life Sciences Ltd. to create an ophthalmology franchise that Viatris estimates could mean at least $1 billion in sales by 2028 as well as at least $500 million more in adjusted EBITDA.