Zhejiang Ausun Pharmaceutical (603229.SH): Receives Drug Registration Certificate for Imatinib Mesylate Tablets

Stock News2025-09-16

Zhejiang Ausun Pharmaceutical Co.,Ltd. (603229.SH) announced that its wholly-owned subsidiary, Zhejiang Qizheng Pharmaceutical Co., Ltd. ("Qizheng Pharmaceutical"), has received a Drug Registration Certificate for Imatinib Mesylate Tablets approved and issued by the National Medical Products Administration.

According to the announcement, Imatinib Mesylate Tablets is the world's first anti-tumor molecular targeted drug, used for treating patients with chronic myeloid leukemia (CML) in blast crisis, accelerated phase, or chronic phase after failure of interferon-alpha therapy, as well as patients with unresectable or metastatic malignant gastrointestinal stromal tumors (GIST).

The active ingredient imatinib is a tyrosine kinase inhibitor that can effectively inhibit the Philadelphia chromosome gene, preventing the catalysis of phosphorylation reactions and causing loss of chromosomal function, thereby inhibiting abnormal white blood cell proliferation. It can also bind to the active site of tyrosine kinase and block its activity.

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