Merus Partners with Halozyme to Develop Subcutaneous Petosemtamab

Shots: Merus has entered into a global non-exclusive collaboration and license agreement with Halozyme Therapeutics to develop & commercialize SC formulation of petosemtamab using Halozyme's Enhanze drug delivery technology As per the deal, Halozyme will receive an upfront, along with commercial & sales milestones payments, plus up to low-mid single-digit royalties; Although the financial details…

ByRidhi RastogiNovember 18, 2025

Genmab to Acquire Merus for ~$8B

Shots: Genmab has entered into a transaction agreement to acquire Merus, incl. its lead asset petosemtamab, expanding its late-stage pipeline & accelerating Genmab’s shift to a wholly owned model As per the deal, Genmab will acquire Merus for $97 per share in an all-cash transaction, representing the deal value of ~$8B, with closing expected in the…

ByRidhi RastogiSeptember 29, 2025

Merus Receives the US FDA’s Breakthrough Therapy Designation for Petosemtamab to Treat 1L PD-L1+ Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma (R/M HNSCC)

Shots: The US FDA has granted BTD to petosemtamab + Keytruda as 1L treatment of r/m HNSCC harboring PD-L1 (CPS ≥ 1) in adults BTD was backed by interim data from ongoing P-I/II trial evaluating petosemtamab + Keytruda in mentioned pts that showed 67% response rate in 24 evaluable pts with further data presented…

ByRidhi RastogiFebruary 19, 2025

Merus Partners with Halozyme to Develop Subcutaneous Petosemtamab

Genmab to Acquire Merus for ~$8B

Merus Receives the US FDA’s Breakthrough Therapy Designation for Petosemtamab to Treat 1L PD-L1+ Recurrent or Metastatic Head and Neck Squamous Cell Carcinoma (R/M HNSCC)

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