This is an open-label, single-dose study of BD211 in patients with transfusion-dependent β-thalassemia aged 14 to 35 years. It is estimated that 10 subjects will be enrolled. BD211 is a gene modified gene therapy product designed to produce healthy β-globin in red blood cells in beta-thalassemia patients. The total follow-up duration was 24 months, the safe endpoints and effectiveness endpoints will be used to assess the safety and efficacy profiles in patients with transfusion-dependent β-thalassemia.
This study will be intented to evaluate the safety and efficacy of lentiviral vector transduction of β-globin genetically modified autologous CD34+ hematopoietic stem cells in patients with transfusion-dependent β-thalassemia.