Nkarta, Inc., a a clinical-stage biopharmaceutical company, develops and commercializes cell therapies for cancer treatment. The company's approach for cellular immunotherapy involves chimeric antigen receptors on the surface of a natural killer (NK) cell that enable the cell to recognize specific proteins or antigens that are present on the surface of tumor cells. Its two co-lead product candidates are NKX101, which is in Phase I clinical trials for the treatment of relapsed/refractory acute myeloid leukemia or higher risk myelodysplastic syndromes and NKX019, a pre-clinical product, which is based on the ability to treat various B cell malignancies by targeting the CD19 antigen found on these types of cancerous cells. The company has a research collaboration agreement with CRISPR Therapeutics AG. Nkarta, Inc. was incorporated in 2015 and is based in South San Francisco, California.