This study has been designed in order to detect EGFR mutation abundance of tissue and concentration of plasma from Advanced Non-small Cell Lung Cancer during treatment with Tyrosine Kinase Inhibitor (TKI) .Through this experiment the investigators aim to evaluate the feasibility of plasma EGFR detection and evaluate the correlation of EGFR mutations and prognosis.
Study Type
OBSERVATIONAL
Enrollment
100
EGFR Mutation Detection of FFPE and plasma samples
To evaluate the feasibility of plasma EGFR detection from non-small cell lung cancer patients harboring EGFR activating mutation who are being treated with EGFR TKIs and evaluate the correlation of EGFR mutations and prognosis.
Time frame: baseline
EGFR Mutation Detection of plasma samples for the following-up patients who take TKI.
In order to monitor the change of plasma EGFR mutation copy number.
Time frame: From start of treatment to time of progression or death, whichever occurs first, assessed up to 3 years
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