Conduct a prospective study to compare gene detection by ctDNA with tumor tissue DNA via targeted DNA sequencing in surgical NSCLC patients.
Previous studies have shown the feasibility of detecting mutation status by circulating tumor DNA (ctDNA)in non-small cell lung cancer (NSCLC) patients. However, no clinical standard method has been established, and most previous studies were lack of prospective clinical data and aimed at advanced NSCLC. We plan to perform a prospective study including consecutive cases of NSCLC patients who underwent surgical treatments. Primary tumor and plasma samples were collected in each patients and gene mutation analysis were performed immediately after surgery. We utilized the targeted DNA sequencing with a next-generation sequencing (NGS) platform to detect driver somatic mutations in matched tumor DNA (tDNA) and plasma ctDNA samples with matched white blood cell (WBC) DNA as a control. A panel of genes were identified.
Study Type
OBSERVATIONAL
Enrollment
95
Peking University People's Hospital
Beijing, China
Whether ctDNA can detect genomic alterations in peripheral blood that are consistent with those in matched tumor sample
Time frame: 2-3 months
Concordance of tDNA and plasma ctDNA gene detection in early stage non-small cell lung cancer
Time frame: 2-3months
Correlation of ctDNA concentration with clinical features
Time frame: 2-3months
Comparison of positive predictive value between ctDNA and tumor markers
Time frame: 2-3months
The relationship between ctDNA concentration and disease free survival(DFS)
Time frame: 3 years
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