KLRK1 and acute myeloid leukemia: In a phase I study (NCT03018405, still recruiting) [48], 12 patients with hematological malignancies (eight AML, three MM and one MDS) received CYAD-01, a CAR product based on the receptor NKG2D with specificity for a broad range of ligands (MICA, MICB, and ULBP1-6) expressed on most tumors.