Sichuan Kelun-Biotech Pharmaceutical Co. Ltd. out-licensed an investigational antibody-drug conjugate (ADC) for the treatment of solid tumors to Merck & Co. Inc. in a deal worth up to $936 million. Sichuan, China-based Kelun-Biotech will receive $35 million up front in the deal and is eligible to receive up to $901 million in future development, approval and commercial milestone payments, as well as tiered royalties on net sales.