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PF-3512676 + erlotinib
- Development stage
- Unknown
- Lead developer
- Pfizer
- Modality
- Small Molecules, MicroRNA (miRNA) → Small RNA Therapeutics → RNA Therapeutics → Nucleic Acid Therapeutics, Antisense Oligonucleotides (ASOs) → Long RNA Therapeutics → RNA Therapeutics → Nucleic Acid Therapeutics, Antisense DNA → DNA Therapeutics → Nucleic Acid Therapeutics, Small Interfering RNA (siRNA) → Small RNA Therapeutics → RNA Therapeutics → Nucleic Acid Therapeutics
- Administration
- Oral, Subcutaneous
01
Overview
PF-3512676 (also known as CPG 7909) is a synthetic oligodeoxynucleotide that acts as an agonist of Toll-like receptor 9 (TLR9), stimulating the immune system and enhancing immune activation in multiple tumor types. Erlotinib is a small molecule tyrosine kinase inhibitor that targets the epidermal growth factor receptor (EGFR), blocking its activity and thereby inhibiting cancer cell proliferation and survival. The combination of PF-3512676 with erlotinib was investigated for potential synergistic effects in treating advanced non-small cell lung cancer (NSCLC), particularly in EGFR-positive patients, based on their complementary mechanisms—immune activation by PF-3512676 and EGFR inhibition by erlotinib. However, clinical trials did not demonstrate improved progression-free survival with the combination compared to erlotinib alone[2].
- Brand names
- Tarceva
- Other names
- erlotinib
02
Targets
TLR9 (Toll-like receptor 9)EGFR T790M (Epidermal growth factor receptor T790M mutant)
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