Cellectis S.A., a clinical stage biotechnological company, develops immuno-oncology products based on gene-edited T-cells that express chimeric antigen receptors to target and eradicate cancer cells. It operates through two segments, Therapeutics and Plants. The company is developing UCART19, an allogeneic T-cell product candidate for the treatment of CD19-expressing hematologic malignancies, such as acute lymphoblastic leukemia (ALL); ALLO-501 to treat relapsed/refractory diffuse large B-cell lymphoma and follicular lymphoma; UCART123 for the treatment of acute myeloid leukemia (AML); and UCART22 to treat B-cell acute lymphoblastic leukemia. It is also developing UCARTCS1 and ALLO-715 for the treatment of multiple myeloma. In addition, the company produces high oleic soybean oil, other soybean products, and fiber wheat. It has strategic alliances with Allogene Therapeutics, Inc.; Les Laboratoires Servier; The University of Texas M.D. Anderson Cancer Center; and Iovance Biotherapeutics. The company was founded in 1999 and is headquartered in Paris, France.