Article Dans Une Revue American Journal of Hematology Année : 2026

Hematologic Landscape of Adult Patients With Diamond‐Blackfan Anemia Syndrome

Marie‐pierre Ledoux
  • Fonction : Auteur
Lydie Da Costa
  • Fonction : Auteur
Thierry Leblanc

Résumé

Information about Diamond‐Blackfan anemia syndrome (DBAS), a ribosomopathy associated with anemia, congenital anomalies and cancer predisposition is limited in adults. Using the French DBAS registry, 235 adult patients with DBAS were analyzed for hematological outcomes. At last follow‐up, anemia, neutropenia, thrombocytopenia, and pancytopenia affected respectively 78%, 31%, 15%, and 11% of the patients. There was no severe aplastic anemia outside of clonal evolution. Among patients without DBAS‐specific treatment (e.g., steroids or red blood cell transfusions), the incidence of anemia, neutropenia, and thrombocytopenia was 52%, 35%, and 10%, highlighting that treatment independence does not mean hematologic remission. Four patients developed myelodysplastic syndrome (MDS) or acute myeloid leukemia (AML), all associated with poor‐risk features and dismal outcomes. Observed to expected ratios were 155 for MDS and 55.4 for AML, confirming a major risk‐excess despite stringent criteria for MDS diagnosis. With a median follow‐up of 32.2 years (IQR 26–44), overall survival (OS) was 98.0% (95% CI, 95.8–100), 90.6% (95% CI, 84.2–97.5), and 70.7% (95% CI, 57.3–87.2) at 30, 40, and 50 years respectively. Solid and hematologic cancers were the main cause of death. This study demonstrates, in a large cohort of adults with DBAS, that cytopenias beyond anemia are frequent and persistent. Myeloid neoplasms occur with a high incidence and dismal outcomes. These findings highlight the need for risk stratification, tailored surveillance, and optimized therapeutic strategies in this vulnerable population.

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Dates et versions

hal-05448962 , version 1 (08-01-2026)

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Citer

Nicolas Lecornec, Flore Sicre de Fontbrune, Edouard Forcade, Loïc Garçon, Louis Terriou, et al.. Hematologic Landscape of Adult Patients With Diamond‐Blackfan Anemia Syndrome. American Journal of Hematology, 2026, 101 (4), pp.687-696. ⟨10.1002/ajh.70197⟩. ⟨hal-05448962⟩
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