Otsuka Pharmaceutical is acquiring clinical stage biotech Visterra for approximately $430 million. Visterra’s Hierotope platform, comprised of novel computational and experimental technologies, enables the design and engineering of precision antibody-based therapies that specifically bind to, and modulate, disease targets that are not adequately addressed by current technologies in antibody therapeutics. Visterra’s pipeline includes programs targeting IgA nephropathy and other kidney...