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Brief Title: Correlation Between Efficacy of Osimertinib and EGFR T790M Status and Ratio Via ddPCR in NSCLC
Official Title: Research on the Correlation Between Efficacy of Osimertinib and EGFR T790M Status and Ratio Via Digital Droplet PCR (ddPCR) From Peripheral Blood in NSCLC Patients
Study ID: NCT05458726
Brief Summary: Liquid biopsy is emerging as an essential tool in tumor monitoring and a potential alternative and supplement to tissue biopsy for tumor genotyping, especially in relapsed or metastatic diseases. Liquid biopsy methods for detecting T790M in ctDNA can be qualitative or quantitative, including amplification refractory mutation system PCR (ARMS-PCR), digital droplet polymerase chain reaction (ddPCR), and next generation sequencing (NGS)-based methods. Comparison of multiple detecting platform for EGFR mutations in plasma samples has been undertaken in studies to determine the most feasible assay in clinical practice. In this study, we will investigate the usefulness of ddPCR for quantitative detection of EGFR T790M mutation in peripheral blood, and compared the utility of ddPCR and NGS for guiding decisions regarding osimertinib therapy in NSCLC patients who had develop resistance to first- or second generation EGFR-TKIs.
Detailed Description:
Minimum Age: 18 Years
Eligible Ages: ADULT, OLDER_ADULT
Sex: ALL
Healthy Volunteers: No
Junling Li, Beijing, Beijing, China
Name: Junling Li, Professor
Affiliation: Chinese Academy of Medical Sciences and Peking Union Medical College
Role: PRINCIPAL_INVESTIGATOR