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A rare, genetic hemoglobinopathy usually characterized by mild microcytic hemolysis and, very rarely, vaso-occlusive complications. Severe manifestations have been reported, including hematuria, splenic infarction, acute chest syndrome, acute episodes of pain and reversible bone marrow necrosis. The genotype is characterized by an HbS allele in combination with an HbE variant (beta26glu>lys); symptoms are due to the low allelic expression of HbE leading to HbS predominance (65+/-5%).
Estimated prevalence: Unknown (Unknown prevalence).
No clinical trials have been registered for sickle cell-hemoglobin E disease syndrome.
5 publications have been identified in PubMed for sickle cell-hemoglobin E disease syndrome. Research spans Case Report / Case Series (40%), Review / Meta-Analysis (20%), and Basic Science / Preclinical (20%).
Mukunya D (2026). [PMID: 41889597](https://pubmed.ncbi.nlm.nih.gov/41889597/). *International medical case reports journal*. [Case Report / Case Series]
Sezaki M (2026). [PMID: 41623180](https://pubmed.ncbi.nlm.nih.gov/41623180/). *The Journal of clinical investigation*. [Basic Science / Preclinical]
Alzahrani LM (2026). [PMID: 41742975](https://pubmed.ncbi.nlm.nih.gov/41742975/). *Cureus*. [Case Report / Case Series]
Ubom AE (2025). [PMID: 41031541](https://pubmed.ncbi.nlm.nih.gov/41031541/). *International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics*. [Review / Meta-Analysis]
Al-Asmari B (2024). [PMID: 38857199](https://pubmed.ncbi.nlm.nih.gov/38857199/). *Journal of pediatric hematology/oncology*. [Epidemiology / Natural History]
Data assembled from 3 of 12 sources · Last updated Sep 19, 2026, 6:55 PM UTC
European rare disease database
Genetic and Rare Diseases Info Center
AI-curated news mentioning sickle cell-hemoglobin E disease syndrome
Updated Apr 20, 2026
Novo Nordisk’s etavopivat elicited a 27% drop in vaso-occlusive crises and 48.7% hemoglobin response after 24 weeks, creating “separation amongst PK class candidates,” Truist analysts said on Monday. Novo plans to seek FDA approval in the back half of 2026.