Tokyo-headquartered Otsuka Pharmaceutical Co. Ltd. said Aug. 1 that it will acquire Boston-based Jnana Therapeutics Inc. through a potential $1.125 billion M&A deal. Under the terms, Otsuka will work to close the transaction by the third quarter of 2024, with $800 million paid out to Jnana shareholders, along with up to $325 million in additional development and regulatory milestones payments.