Otsuka Pharmaceutical Co. Ltd. is paying up to $1.3bn for private US-based drug discovery specialist Jnana Therapeutics Inc., in a deal that will give the Japanese major access to platform technology and phenylketonuria asset it sees as complementing its existing portfolio and earlier acquisitions.
Otsuka will pay $800m in cash upon completion and up to an additional $325m in development and regulatory milestones under...








