A one-time gene therapy for transfusion-dependent β-thalassemia.​
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Kanexthal is designed as a curative treatment for eligible patients with transfusion-dependent β-thalassemia. Kanexthal addresses the root cause of β-thalassemia by restoring the natural hemoglobin production and freeing patients from lifelong tranfusions and iron chelations.
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Program experience & outcomes​
Evidence snapshot (Based on available data by October 2025)
70+ patients treated
17 patients treated in IIT, 9 patients in Ph. 1
40+ patients treated in real world​​
Free from transfusion
All patients treated so far have achieved transfusion independence.
Longest follow up is ~4.5 years.​​​
Accessible in China
The product is commercially available for patients in certified hospital(s) in China based on pilot access program.
Blood stem cells are collected from the patient through apheresis*.




A functional β-globin gene is added to the collected cells using a lentivirus vector**.
Each batch is carefully tested for safety and quality before infusion.
The modified stem cells are infused back into the patient to restore healthy blood production.
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How Kanexthal works
*Apheresis is a procedure that enables the separation and collection of stem cells from the whole blood using a centrifuge machine.
**A lentiviral vector is a molecular tool used to deliver genetic material (a functional β-globin gene in this case) into
cells. It is essentially a "delivery truck" derived from a lentivirus that has been engineered to be safe and useful for research and medicine.


