Class I glucose-6-phosphate dehydrogenase deficiency
Synonyms: Class I G6PD deficiency | Severe hemolytic anemia due to G6PD deficiency
A rare constitutional hemolytic anemia due to an enzyme disorder characterized by severe glucose-6-phosphate dehydrogenase deficiency (typically <10% residual enzyme activity) associated with chronic non-spherocytic hemolytic anemia of highly variable severity. Patients are at risk of developing neonatal jaundice (potentially leading to kernicterus) gallstones and reticulocytosis and splenomegaly. They have an increased susceptibility to oxidizing agents provoking episodes of acute hemolysis. Favism which describes the occurrence of an acute hemolytic reaction in response to the ingestion of fava beans is more common in infants and young children.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview.
Reference: Access aggregated data from Orphanet at Orphadata.
Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http: //www.orphadata.org. Data version September 2023.
Newly diagnosed with
Class I glucose-6-phosphate dehydrogenase deficiency?
Our RARE Concierge Services Guides are available to assist you by providing information, resources and connections as you navigate your rare disease journey.
Advocacy Organizations
Syndromes Without A Name (SWAN) Australia
Provide information, support and advocacy to families caring for a child with an undiagnosed or rare genetic condition.
Care-for-Rare America Inc
To establish a global alliance in order to identify the genetic causes of rare diseases and develop effective treatments, following a three-stage approach: recognize, understand, cure.
Youth and Women for Opportunities Uganda-YWOU
Youth and Women for Opportunities-YWOU an organization that we represent is patient organization re-presentative, patient and institution and individual capacity builder supporting PLWRD’s to obtain diagnosis, treatment and drugs for those suffering consequences of being undiagnosed or misdiagnosed and lack treatment and those who lack precise diagnosis for rare, orphan and undiagnosed diseases preventing PLWRD’s accessing the most adapted care, treatment or surgery, have delayed access to the most appropriate care, treatment or surgery
Clinical Trials
For a list of clinical trials in this disease area, please click here.