0000000000485207
AUTHOR
Alexandre Passioukov
Abstract LB-220: Translational research with RG7160 (GA201) leads to a phase II clinical study in combination with FOLFIRI in 2nd line metastatic colorectal cancer (mCRC)
Abstract GA201 is a novel dual-acting humanized, engineered IgG1 anti-EGFR mAb designed to enhance ADCC in combination with signaling inhibition. Superior efficacy was demonstrated versus cetuximab in orthotopic CRC xenograft models. Preclinical data indicated an increase in macrophages (4-5 fold) and NK cells (2-3 fold) infiltration in tumors treated with GA201 compared to cetuximab. In a phase I clinical study objective responses and long lasting disease stabilizations were observed. A marked reduction in circulating NK cells and an increased infiltration of immune cells into skin rash was seen. Preliminary evidence of the enhanced ADCC capacity of GA201 was investigated in 25 third line …
Open-label, multicentre expansion cohort to evaluate imgatuzumab in pre-treated patients with KRAS-mutant advanced colorectal carcinoma.
Abstract Aim Imgatuzumab (GA201) is a novel anti-epidermal growth factor receptor (anti-EGFR) antibody glycoengineered for enhanced antibody-dependent cell-mediated cytotoxicity (ADCC). We investigated the efficacy of imgatuzumab in patients with EGFR-positive, KRAS -mutant advanced colorectal cancer. Methods Patients received single-agent imgatuzumab (1400 mg on day 1 and 8 followed by q2W) as third line therapy in an open-label, multicentre, non-randomised, expansion study. The primary end-point was tumour response. Pre- and on-treatment biopsies and blood samples were investigated for biomarkers related to imgatuzumab’s believed mechanism of action (MoA). Results 25 patients were treated…