Aptevo Therapeutics Plans IND-Enabling Studies for Trispecific Cancer Therapy in 2027

Aptevo Therapeutics said it is optimizing several next-generation trispecific cancer therapy candidates for reliable, scalable manufacturing, a key step toward future human testing. The company expects its lead candidate, APVO451, to enter Investigational New Drug–enabling studies in the first half of 2027. Trispecific therapies are designed to combine functions that recognize cancer, activate immune attacks and help counter tumor defenses.
Aptevo said that demonstrating consistent manufacturing of complex trispecific molecules is intended to reduce a key development risk, strengthen its ADAPTIR-FLEX platform and potentially make its programs more attractive for future clinical progress and strategic partnerships.
Aptevo described its protein-engineering and process-development capabilities as enabling it to assemble selected functions into a stable molecule, and said its trispecific programs build on the company’s multispecific expertise.
The company said its trispecific programs could produce differentiated candidates across multiple cancer programs, rather than being focused solely on APVO451.
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