FDA Fast Track for Alphamab Cancer Drug

FDA has granted a fast-track designation for Alphamab Oncology’s biparatopic HER2-targeting antibody drug conjugate JSKN003 to treat advanced or metastatic platinum-resistant recurrent epithelial ovarian cancer, primary peritoneal cancer, or fallopian tube cancer, not restricted by HER2 expression. A company statement says the designation follows FDA approval earlier this year of an orphan drug designation for gastric cancer/gastroesophageal junction cancer.

The statement says JSKN003 is developed by site-specific conjugation to the Fc glycans of anbenitamab, resulting in a homogenous and stable antibody-drug conjugate with a drug-to-antibody ratio of 4. JSKN003 binds to two HER2 epitopes on tumor cells and releases topoisomerase 1 inhibitors through cellular endocytosis, exerting anti-tumor effects, it says.

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