More effective treatments are needed for patients with myelodysplastic syndrome (MDS), a heterogeneous group of myeloid disorders that frequently progress to acute myeloid leukemia (AML). In a recent publication, Debiopharm SA and The Ohio State University demonstrate that MDS cells express CD37 and that both AML and MDS cells exhibit efficient internalization of this receptor. Debio-1562M, under development at Debiopharm, is a next-generation antibody-drug conjugate (ADC) targeting CD37.