This First In Human (FIH) study is a prospective, open-label, multicenter, Phase 1 study, with a dose escalation design, followed by an optimized design. It will consist in a Single Ascending Dose (SAD) part and a Multiple Ascending Dose (MAD) part.
Patients with relapsed/refractory Acute Myeloid Leukemia (AML) after failing at least one therapy regimen and a salvage treatment or are not eligible for salvage treatment regimens including targeted therapy
Patients with relapsed/refractory Myelodysplastic syndrome (MDS) ineligible for salvage treatment who are diagnosed high-risk and very high-risk using Revised International Prognostic Scoring System (IPSS-R) prognostic risk categorization
Patients not eligible to alloSCT
Negative blood or serum/urine pregnancy test
Patients with acute myeloid leukemia (AML) with Inv(16) MYH11-CBF-Beta or t(8;21) AML-ETO RUNX1-RUNX1 or (PML/RARA) karyotype abnormalities and eligible to targeted therapies
Participants with clinical symptoms suggestive of active central nervous system (CNS) leukemia or known CNS leukemia
Ongoing immunosuppressive treatment
Hematopoietic stem cell transplantation (HSCT) performed within 3 months prior to study Visit 1