Innovent Biologics, a world-class biopharmaceutical company that develops, manufactures and commercializes high-quality medicines for the treatment of oncology, metabolic, autoimmune, ophthalmology and other major diseases, announced that the Center for Drug Evaluation (CDE) of China's National Medical Products Administration (NMPA) has granted Breakthrough Therapy Designation (BTD) for olverembatinib for the treatment of patients with succinate dehydrogenase (SDH)-deficient gastrointestinal stromal tumor (GIST) who had received first-line treatment.

Results from an ongoing Phase 1b/2 study of olverembatinib in China showed an impressive clinical benefit rate (CBR) of 93.8% in patients with this subtype of GIST. Based on these promising results, the study was selected for presentations at the American Society of Clinical Oncology (ASCO) Annual Meeting for two consecutive years.

Olverembatinib is the first and only third-generation BCR-ABL inhibitor approved in China for the treatment of adult patients with tyrosine kinase inhibitors (TKI)-resistant chronic-phase chronic myeloid leukemia (CML-CP) or accelerated-phase CML (CML-AP) harboring the T315I mutation as confirmed by a validated diagnostic test. Olverembatinib is jointly commercialized in China by Ascentage Pharma and Innovent Biologics.

This marks the second BTD granted to olverembatinib by the CDE, with the first one granted in March 2021 for the treatment of patients with CML-CP resistant and/or intolerant to first- and second-generation TKIs. A New Drug Application (NDA) for the first BTD indication was accepted by the NMPA in July 2022 and subsequently granted Priority Review designation that will support a full approval of olverembatinib.

Dr. Hui Zhou, Senior Vice President of Innovent stated:" We are glad to see the NMPA grants another BTD for olverembatinib, marking a major milestone in its clinical development and demonstrating its therapeutic potentials beyond hematologic malignancies. We look forward to more good news of olverembatinib that allow more patients to benefit from this novel drug as soon as possible."

NMPA Breakthrough Therapy Designation is intended to facilitate and expedite the development and review of an investigational drug to treat a serious disease or condition when preliminary clinical evidence indicates that the drug has demonstrated substantial improvement over current therapies.