Aptevo Therapeutics Files Provisional Patent for Fifth Bispecific Antibody APVO711, Intended for the Treatment of Solid Tumors

On January 9, 2023 Aptevo Therapeutics Inc. ("Aptevo" or the "Company") (NASDAQ:APVO), a clinical-stage biotechnology company focused on developing novel immuno-oncology therapeutics based on its proprietary ADAPTIR and ADAPTIR-FLEX platform technologies, reported that the Company has filed a provisional patent with the U.S. Patent and Trademark Office (USPTO) pertaining to an anti-PD-L1 x anti-CD40 compound, APVO711, with the potential to fight a range of solid malignancies such as head and neck squamous cell carcinoma, melanoma, and carcinomas of the lung, gastrointestinal tract and colon (Press release, Aptevo Therapeutics, JAN 9, 2023, View Source [SID1234642041]). The Company plans to initiate pre-clinical studies this year.

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"Identifying new approaches to address the unmet needs of cancer patients is critical and APVO711 represents just such a new approach. This bispecific molecule targeting PD-L1 and CD40 is designed to function with new mechanisms of action and to synergistically induce a biological response. This is achieved by simultaneously engaging in two validated T cell activating mechanisms: 1) by blocking of PD-L1/PD-1 inhibitory pathway and 2) by enhancing T cell priming through activation of the stimulatory receptor CD40 on antigen presenting cells. APVO711 is designed to activate CD40 only in the presence of PD-L1 for an ideal safety profile." said Michelle Nelson, PhD, Director, Immunobiology at Aptevo. "Our goal in pre-clinical studies will be to continue to evaluate that APVO711 has the desired anti-tumor efficacy, mechanisms of action and safety profile we are looking for in our latest pipeline candidate."

"We are very pleased to announce that APVO711 is entering pre-clinical studies. This new compound expands our anti-cancer portfolio to five molecules and provides potential for another novel pathway to more effective cancer therapies in solid tumors," said Marvin L. White, President, and CEO of Aptevo Therapeutics. "As evidenced by clinical performance to date for APVO436, which has delivered compelling efficacy and safety data, we believe our additional ADAPTIR candidates, such as APVO711, have the potential to deliver similar outcomes."