Astellas Pharma Inc. has agreed to acquire Iota Biosciences Inc., a company developing ultra-small implantable bioelectronic medical devices, in a deal valued at up to $429 million. According to a merger agreement, Tokyo-based Astellas will make an initial payment of roughly $127.5 million for all outstanding equity not already held by Astellas. Iota shareholders will receive further payments of up to $176.5 million as Iota completes predetermined milestones. In addition, Astellas has agreed to spend a total of $125 million over the next five years to drive Iota’s growth. The deal is expected to close in the third quarter of Astellas’ fiscal year, which ends March 31, 2021.