Molecular Partners announced data presentations at SITC 2024 for two programs: a novel CD3 Switch-DARPin T cell engager and MP0317. The CD3 Switch-DARPin platform demonstrated preclinical proof-of-concept for conditional T cell activation in solid tumors, specifically in ovarian cancer models. The technology features an 'on/off' switch mechanism that activates only in the presence of defined tumor antigens.
For MP0317, comprehensive biomarker analyses from its completed Phase 1 trial showed successful CD40 activation in tumor microenvironments across various solid tumors. The data revealed increases in dendritic cells, M1 macrophages, and other immune cells, supporting its tumor-localized approach. The company is now discussing potential investigator-initiated combination trials.