This FIH study combines, in patients with primary refractory or relapsed AML patients and in patients with high risk MDS a Single Ascending Dose (SAD) part (Part A) and a Multiple Ascending Dose (MAD) part followed by a Regimen optimization (part B).~The objective of the SAD phase is to explore a wide range of dose administered as a single and fixed 4-hours intravenous infusion in order to select a dose and a dosing frequency (determined using pharmacokinetic and pharmacodynamics parameters).~The objective of the MAD is to elucidate the pharmacokinetic (PK) and pharmacodynamics (PD) of multiple doses of ABD-3001. The dose levels and dosing intervals (i.e., time between consecutive doses) will be selected as those that are predicted to be safe from the SAD. Dose levels and dosing frequency will be derived from data obtained during the SAD.
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 followed by a Regimen optimization part with an extension cohort.