Chiome Bioscience Inc. engages in the research and development of drug discovery technology platforms worldwide. The company operates through two segments, Drug Discovery Business and Drug Discovery Support Business. It offers ADLib System, a monoclonal antibody generating system for drug discovery and development; and Human ADLib System, which converts chicken antibody genes to humanized antibodies. The company also provides protein expression and purification services; stable cell line development services for recombinant protein and antibody production; and antibody generation services using the ADLib system. Its product pipeline under Phase 1 trial comprises ADCT-701, an anti-dlk1 antibody for treating liver cancer; CBA-1205, an afucosylated anti-dlk1 antibody for liver cancer, lung cancer, and neuroblastoma; and CBA-1535, an anti 5T4/WAIF1 antibody for malignant mesothelioma, small cell lung cancer, non-small cell lung cancer, and triple negative breast cancer (TNBC). The company's product pipeline under preclinical study includes PCDC, an anti- CDCP1 antibody for lung, colorectal, pancreatic, breast, and ovarian tumors; PTRY, an antibody 5T4/CD3/PD-L1 for treating malignant mesothelioma, small cell lung cancer, non-small cell lung cancer, and TNBC; BMAA, an anti-semphorin3a antibody for treating renal and other diseases; LIV-2008/2008b, an anti-TROP-2 antibody for the treatment of TNBC, lung cancer, and colorectal cancer; PFKR, an anti-CX3CR1 antibody for secondary progressive multiple sclerosis; and PXLR, an anti-CXCL1/2/3/5 antibody for the treatment of gastric, breast, and ovarian tumors. It serves universities, research institutions, diagnostic companies, and pharmaceutical companies. Chiome Bioscience Inc. was incorporated in 2005 and is headquartered in Tokyo, Japan.