Plexxikon Inc.
Biotechnology ResearchCalifornia, United States51-200 Employees
Plexxikon Inc. operates in biotechnology research, focusing on discovery and development of small-molecule medicines. Through its proprietary discovery platform, it builds a pipeline across multiple therapeutic areas aimed at selective, targeted therapies aligned with personalized medicine. The company began operations in 2001 and is based in South San Francisco, California, as part of the Daiichi Sankyo Group. It has a history of collaboration with partners in bringing therapies to patients, including the development of vemurafenib (Zelboraf) for melanoma with Roche along with a companion diagnostic. Its approach centers on early-stage discovery and development, supported by a broad network of scientific and clinical experts and partnerships to enable progression through later-stage development. In March 2022, Plexxikon sold assets to Opna Bio SA, with related compounds added to Opna's oncology portfolio.