Beta thalassaemia is rare, and Zynteglo was designated an ‘orphan medicine’ (a medicine used in rare diseases) on 24 January 2013. Zynteglo contains as its active substance stem cells taken from the patients that have been genetically modified to contain a working gene for beta-globin.
Zynteglo has been developed by bluebird bio (Netherlands) B.V. It was approved on 29 May 2019 in the European Union by the EMA. Zynteglo is indicated for the treatment of patients 12 years and older with transfusion-dependent β thalassaemia (TDT) who do not have a β0/β0 genotype, for whom haematopoietic stem cell (HSC) transplantation is appropriate but a human leukocyte antigen (HLA)-matched related HSC donor is not available.