Saliva-Based Detection of Actionable EGFR Mutation in Lung Cancer PatientsMonday, 16 November 2015 at 10:00 Add to Calendar ▼SELECTBIOenquiries@selectbiosciences.com Constitutive activation of epithelial growth factor receptor (EGFR) is prevalent in epithelial cancers, particularly in non-small-cell lung carcinoma (NSCLC). EGFR mutation predicts sensitivity to EGFR-targeted therapy and mutation detection is mainly based on tissue biopsy, which is invasive, expensive and time-consuming. Non-invasive, real-time, point-of-care, inexpensive detection and monitoring of EGFR mutations in NSCLC patients is highly desirable. We developed a novel core technology, Electric Field-Induced Release and Measurement (EFIRM), relying on a multiplexible electrochemical sensor that can detect EGFR mutations directly from body fluids. EFIRM for EGFR mutation detection was established in vitro, and correlated with tumor size from xenografted mice. In clinical application, we demonstrated that EFIRM can detect EGFR mutations from saliva and serum of 22 NSCLC patients. And finally, a blinded test was performed on saliva from 40 NSCLC patient saliva samples. The receiver operating characteristic analysis indicated that EFIRM detected the exon 19 deletion with an area under the curve (AUC) of 0.94 and the L858R mutation with an AUC of 0.96. Our data indicate that EFIRM is effective, accurate, rapid, user-friendly, and cost effective for the detection of EGFR mutations in saliva of NSCLC patients. Saliva-Based Detection of Actionable EGFR Mutation in Lung Cancer PatientsMonday, 16 November 2015 at 10:00 Add to Calendar ▼SELECTBIOenquiries@selectbiosciences.com Constitutive activation of epithelial growth factor receptor (EGFR) is prevalent in epithelial cancers, particularly in non-small-cell lung carcinoma (NSCLC). EGFR mutation predicts sensitivity to EGFR-targeted therapy and mutation detection is mainly based on tissue biopsy, which is invasive, expensive and time-consuming. Non-invasive, real-time, point-of-care, inexpensive detection and monitoring of EGFR mutations in NSCLC patients is highly desirable. We developed a novel core technology, Electric Field-Induced Release and Measurement (EFIRM), relying on a multiplexible electrochemical sensor that can detect EGFR mutations directly from body fluids. EFIRM for EGFR mutation detection was established in vitro, and correlated with tumor size from xenografted mice. In clinical application, we demonstrated that EFIRM can detect EGFR mutations from saliva and serum of 22 NSCLC patients. And finally, a blinded test was performed on saliva from 40 NSCLC patient saliva samples. The receiver operating characteristic analysis indicated that EFIRM detected the exon 19 deletion with an area under the curve (AUC) of 0.94 and the L858R mutation with an AUC of 0.96. Our data indicate that EFIRM is effective, accurate, rapid, user-friendly, and cost effective for the detection of EGFR mutations in saliva of NSCLC patients. |