French National Registry of Bone Marrow Failures

This registry has two main objectives:

* Public health care evaluation and improvement: to assess the medical and social needs inherent to the management of these rare diseases; to precisely assess the level of diagnosis and management of bone marrow failure syndromes in France; to evaluate the impact and guidance of the French reference center guidelines for diagnosis and treatment; to evaluate the real-life efficacy and tolerance of any given specific treatments; to analyze treatment's cost-effectiveness according to each situation. * Research:

* Epidemiology: to determine the incidence, prevalence, and distribution of different bone marrow failure syndromes at the national level; * Biology: to better understand the pathophysiology of BMF; to identify and to study complications within each entity, such as mechanisms underlying clonal evolution, new forms of inherited BMF and acute myeloid leukemia (AML)/MDS-predisposition syndromes, and to better and deeper characterize known entities; * Treatment: to identify prognostic factors and predictors of response; to identify side effects and impact of treatment on others organs and natural functions; to assess patients' quality of life as early as possible since diagnosis and throughout follow-up.