Single-center, Biological, Uncontrolled, Prospective Study Evaluating the Dosage of Plasma Cytokines Including the FLT3 (FMS-like Tyrosine Kinase 3) Ligand and IL6 With a View to Making a First Estimate of Their Prognostic Value on the Outcome of Patients Treated With Non-intensive Chemotherapy Such as Azacytidine for Acute Myelogenous Leukemia (AML), High Risk Myelodysplastic Syndrome (HR-MDS) or Chronic Myelomonocytic Leukemia (CMML)
There are 2 possible treatments for the treatment of Acute Myelogenous Leukemia (AML), high-risk myelodysplastic syndromes (HR-MDS) or chronic myelomonocytic leukemia (CMML): intensive curative chemotherapy , and for over-aged or co-morbid patients , non-intensive palliative chemotherapy with a hypomethylating agent (Azacytidine) associated or not with venetoclax. Pro-inflammatory cytokines and in particular IL-6 (Interleukin 6) seem to play a key role in the chemoresistance of solid cancers and AML : it would be associated with a poor prognosis of AML , would promote the proliferation of leukemic blasts , and would promote the progression of MDS to AML . In AML treated with intensive chemotherapy, researchers demonstrated that a particular kinetic profile of the FLT3 ligand and IL6 at day 22 could very significantly predict the survival of patients with AML . It therefore seems interesting to study the plasma cytokine profiles in patients with AML, HR-MDS or CMML treated non-intensively, and to see if researchers observe the same prognostic correlation as during intensive chemotherapy.
• Age \>=18 years
• AML or SMD-HR or CMML in first line or in relapse receiving a hypomethylating agent +/- another molecule or a hypomethylating agent in combination with venetoclax +/- another molecule.
• Patient having agreed to participate in the study (information note signature) and having signed the biocollection consent