Clinical Research Directory

Inclusion Criteria: * Patients sustaining a confirmed or suspected diagnosis of an hereditary rare hemolytic anemia: * Sickle cell disease * Thalassemic syndromes * Congenital dyserythropoietic anemia * Enzymopathy * Unstable Hemoblogin / Altered oxygen affinity * Hereditary stomatocytosis * Hereditary pyropoikilocytosis * Hereditary spherocytosis with severe anemia (\<8 g/dL) or inconclusive diagnosis: * Patient with chronic hemolytic anemia and red cell smear compatible, but with: * EMA binding test: inconclusive or negative * Genetic testing: no definitive diagnosis (VUS or no findings) * Not transplanted or undergoing gene therapy at the time of inclusion. Patients with graft failure without a new transplant may be included. Exclusion Criteria: * Carrier traits in autosomal recessive hereditary anemias