5年新生！邦耀生物全球首例CRISPR治愈β0/β0型重度地贫患儿健康生活超5年

Core Viewpoint - The article highlights the significant breakthrough in gene editing therapy for β-thalassemia, particularly through the case of a patient named "Xixi," who was successfully treated using CRISPR technology, marking a milestone in the treatment of hereditary blood disorders [1][4]. Group 1: Patient Case Study - Xixi, diagnosed with the most severe form of β0/β0 thalassemia at 9 months old, required lifelong blood transfusions and iron removal therapy, placing a heavy burden on his family [3]. - In 2020, at the age of 7, Xixi became the first patient globally to receive CRISPR gene editing therapy (BRL-101) and successfully became independent from blood transfusions just 56 days post-treatment [6]. - Five years later, Xixi has maintained his health without transfusions, with hemoglobin levels around 140g/L, showcasing the long-term efficacy and safety of the treatment [6][10]. Group 2: Scientific Breakthrough - β-thalassemia is a hereditary blood disorder caused by defects in the globin gene, traditionally treated through costly and complex allogeneic stem cell transplants, which carry high risks [10]. - The BRL-101 gene therapy utilizes CRISPR technology to modify the BCL11A locus in the patient's hematopoietic stem cells, allowing for a one-time treatment that can potentially cure the disease [10]. - The therapy's delivery method avoids safety issues associated with viral vectors, enhancing its safety profile [10]. Group 3: Company Development and Achievements - Shanghai Bangyao Biotechnology has been deeply involved in gene therapy, with BRL-101 receiving IND approval in August 2022 and achieving significant clinical milestones since its inception [14]. - The company has published influential research in top journals and has been recognized at major international conferences, receiving awards for its contributions to rare disease treatment [15]. - Future plans include exploring treatments for sickle cell disease (BRL-102) and expanding global clinical collaborations to benefit patients with various hereditary blood disorders [14][17].