Amgen (AMGN) and Kirin Holdings (Kirin) announced an agreement upon, which Kirin-Amgen, a joint venture between the two companies, will redeem Kirin’s shares in the joint venture and as a result, Kirin-Amgen will become a wholly-owned subsidiary of Amgen. The Kirin-Amgen joint venture was established in 1984 as a 50-50 joint venture between Amgen and Kirin to fund the global development of Epogen® (epoetin alfa). The scope of …