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PYTX-004 + anti-PD-1
- Development stage
- Preclinical
- Lead developer
- Papyrus Therapeutics
- Modality
- Replacement Enzymes → Therapeutic Enzymes → Recombinant Proteins and Enzymes, Fc-Fusion Proteins → Carrier/Scaffold Proteins → Recombinant Proteins and Enzymes, Monoclonal Antibodies → Antibody-Based Therapeutics, Vaccines & Immunotherapeutics
- Administration
- Intravenous
01
Overview
PYTX-004 + anti-PD-1 is a preclinical-stage combination therapy being developed by Papyrus Therapeutics for the treatment of solid tumors, with a particular focus on ovarian cancer. The combination consists of PYTX-004, a recombinant Fc-fusion protein (OPCML-Fc) designed to restore the function of the Opioid Binding Protein/Cell Adhesion Molecule-like (OPCML) tumor suppressor, and an anti-PD-1 checkpoint inhibitor. OPCML is a cell-surface protein that is frequently epigenetically silenced in various cancers; when restored, it acts as a broadly acting tumor suppressor by binding and inactivating nine activated receptor tyrosine kinases (RTKs), including HER2, HER4, FGFR1, FGFR3, EphA2, AXL, TYRO3, MET, and VEGFR3. By combining this multi-RTK inhibition and direct oncolysis with the immune-stimulating effects of PD-1 blockade, the therapy aims to achieve synergistic anti-tumor activity, suppress angiogenesis, and activate robust anti-tumor immunity.
- Other names
- PYTX-004 + immuno-oncologyPYTX-004 + anti-PD-1 checkpoint inhibitor
02
Targets
AXL (AXL receptor tyrosine kinase)PDCD1 (Programmed cell death protein 1 receptor)MET (Mesenchymal-epithelial transition factor receptor)ERBB2 (Erb-b2 receptor tyrosine kinase 2)EPHA2 (Ephrin type-A receptor 2)ERBB4 (Erb-b2 receptor tyrosine kinase 4)FGFR3 (Fibroblast growth factor receptor 3)VEGFR3 (Vascular endothelial growth factor receptor 3)FGFR1 (Fibroblast growth factor receptor 1)
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