On January 31, 2022 Imugene Limited (ASX:IMU) a clinical stage immuno-oncology company reported it has received a Notice of Grant from the Japanese Patent Office for Patent Application number 2019-507161 which protects its oncolytic virotherapy CF33, including VAXINIA (CF33-hNIS) and CHECKVacc (CF33-hNIS-antiPDL1) (Press release, Imugene, JAN 31, 2022, View Source [SID1234607525]).

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The patent titled "CHIMERIC POXVIRUS COMPOSITION AND USES THEREOF" (inventors Yuman Fong and Nanhai Chen from the City of Hope) protects the method of composition and method of use of Imugene’s licensed oncolytic virotherapy to 2037.

CF33 is a chimeric vaccinia poxvirus from the lab of inventor Professor Yuman Fong, Chair of Sangiacomo Family Chair in Surgical Oncology at City of Hope, and a noted expert in the oncolytic virus field.

Oncolytic viruses (OVs) are designed to both selectively kill tumour cells and activate the immune system against cancer cells, with the potential to improve clinical response and survival. Imugene MD & CEO Leslie Chong said:

"Imugene receiving this patent grant for the CF33 family of oncolytic viruses from the Japanese patent office is a crucial step forward and is the first of many expected patent grants from multiple countries. The start of our VAXINIA and CHECKVacc OV studies are a significant milestone for clinicians treating patients faced with the challenge of solid tumour cancers."