Gefitinib With Anlotinib in Advanced Non-squamous NSCLC Patients With Uncleared Plasma ctDNA EGFRm After First-line Treatment With Gefitinib

This is an open-label, prospective, randomized, controlled phase II clinical trial.To evaluate the efficacy and safety of gefitinib combined with anlotinib versus gefitinib alone in advanced non-squamous NSCLC patients whose EGFRm was not cleared in plasma ctDNA after 8 weeks of gefitinib first-line treatment, so as to provide clinical basis for a new and tolerable treatment that can prolong the survival time of patients with advanced NSCLC. Study therapy continued until disease progression, unacceptable adverse event, or withdrawal of consent. The efficacy and adverse reactions of the trial regimen will be evaluated according to RECIST criteria and NCI-CTC AE V3.0.