Thalassemia is a group of recessively inherited hemoglobin disorders characterized by reduced or no production of hemoglobin and chronic anemia of varying severity. Severe β-thalassemia is transfusion-dependent thalassemia (TDT) and requires life-long transfusion, iron overload is a common complication of TDT. Allogeneic hematopoietic stem cell transplantation (allo-HSCT) is a curative option currently available for TDT, but it carries significant acute and long-term risks. In this study, the autologous HSCT-based gene therapy (referred to as "gene therapy for thalassemia, " by using HGI-001) is based on the principle that the autologous haemopoietic stem cells (HSCs) collected from the patient him/herself are transduced outside human body, which will restore the function of RBCs, so as to achieve the effect of treating or even curing thalassemia. Currently data suggests that gene therapy for TDT patients has shown remarkable therapeutic effects, avoiding immune rejection, and is widely accepted by the medical community, positioning it as a highly promising treatment approach. To date, the efficacy and safety of HGI-001 have been evaluated through both in vitro and in vivo studies. In an early-phase clinical study of HGI-001 conducted in China, five patients achieved transfusion-independent post-treatment. Among them, four have maintained this state for over two years, with the longest duration reaching 3.5 years. The study noted no severe adverse events. The long-term safety and efficacy of HGI-001 continue to be under active surveillance.
Age range
12 Years – 45 Years
Sex
ALL
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achieve transfusion independence (TI)for at least ≥12 months after HGI-001 Injection infusion
Timeframe: 12 month after injection of study drug