Azacytidine and venetoclax combination regimen (AZA/VEN) is the standard of care in frontline acute myeloid leukemia (AML) settings for unfit to intensive chemotherapy patients. AZA/VEN combination regiment was approved in France in 2021 but was already used in outlabel fashion since 2019. However, AZA/VEN is also associated with an increased hematological toxicity compared to azacytidine alone. In this context, alternative AZA/VEN regimens emerged progressively based on each physician experience and local procedures. Moreover, AZA/VEN is also recognized as a valuable therapeutic option in relapse/refractory settings. In this multicentric study, the investigators aimed to evaluate the efficacy and safety of various AZA/VEN regimen in frontline and relapse/refractory (R/R) patients diagnosed with AML in real life setting.

The investigators will retrospectively analyze clinical outcome of patients from 11 different French centers (Saint-Etienne, Clermont-Ferrand, Lyon (Hopital Lyon Sud, Centre Léon Bérard), Vichy, Annecy, Chambery, Valence, Bourgoin-Jallieu, Grenoble, Roanne) in Auvergne Rhône Alpes (AURA) region, between January 2019 and December 2023. Composite complete remission was defined as in VIALE-A trial. Measurable residual disease (MRD) negativity was defined as ≤ 10-3 by flow cytometry (on bone marrow) and/or ≤ 10-4 for NPM1 by RT-qPCR.

Inclusion Criteria:

• >18 years old
• Acute myeloid leukemia patients at diagnostic, in relapse/refractory settings, or MRD relapse.
• receiving AZA/VEN combination regimen

Exclusion Criteria:

• Another VEN combination chemotherapy
• AZA/VEN initiation prior January 2019 and after December 2023
• Opposition to the study

Every adult patients ( >18 years old) with a diagnostic of AML treated by the association of AZACYTIDINE and VENETOCLAX between January 2019 and December 2023.