FUJIFILM Wako Bio Solutions Corporation 1 article published in JoVE Cancer Research High-Throughput In Vitro Assay using Patient-Derived Tumor Organoids Arisa Higa1, Nobuhiko Takahashi2,3, Gen Hiyama2, Hirosumi Tamura2, Hirotaka Hoshi2, Kenju Shimomura3, Shinya Watanabe2, Motoki Takagi2 1FUJIFILM Wako Bio Solutions Corporation, 2Medical-Industrial Translational Research Center, Fukushima Medical University, 3Department of Bioregulation and Pharmacological Medicine, Fukushima Medical University A highly accurate in vitro high-throughput assay system was developed to evaluate anticancer drugs using patient-derived tumor organoids (PDOs), similar to cancer tissues but are unsuitable for in vitro high-throughput assay systems with 96-well and 384-well plates.