Alphamab Oncology (HKG:9966) said Chinese regulators accepted its KN035 combination therapy for review, according to a Hong Kong bourse filing Friday.
Shares of the cancer therapy developer fell over 3% in late morning trade on Monday.
The firm is seeking approval for KN035 in combination with chemotherapy drugs gemcitabine and oxaliplatin as a first-line treatment of unresectable or metastatic biliary tract cancer.
KN035 is also known as envafolimab and Enweida.