Athenex, Inc., a biopharmaceutical company, engages in the discovery, development, and commercialization of drugs for the treatment of cancer. It operates through Oncology Innovation Platform and Commercial Platform segments. The company's Orascovery product candidates include Oral paclitaxel and encequidar for the treatment of metastatic breast cancer. It also offers Src Kinase product candidates comprising Tirbanibulin ointments for actinic keratosis, skin cancers, and psoriasis. In addition, the company engages in developing KUR-501, an autologous product that is in a phase I clinical trial for treating children with relapsed-refractory (R/R) high risk neuroblastoma; KUR-502, an allogeneic product for treating adults with R/R CD19 positive malignancies, including B cell lymphoma, acute lymphoblastic leukemia, and chronic lymphocytic leukemia; and KUR-503, an allogeneic product that is in preclinical development for advanced hepatocellular carcinoma. Further, it engages in developing dual absorption enhancers to inhibit the P-gp transporter and the cytochrome p450 3A enzymes within the gastrointestinal tract; and has a portfolio of TCRs that recognize hotspot mutations in p53, KRAS, and EGFR genes for multiple tumors. The company was formerly known as Kinex Pharmaceuticals LLC and changed its name to Athenex, Inc. in August 2015. Athenex, Inc. was incorporated in 2003 and is headquartered in Buffalo, New York. On May 14, 2023, Athenex, Inc., along with its affiliates, filed a voluntary petition for reorganization under Chapter 11 in the U.S. Bankruptcy Court for the Southern District of Texas.