RecruitingPhase 2Drug trialFurmonertinib Monotherapy and Combination Therapy in Advanced EGFR Mutant NSCLC With Uncleared ctDNAEGFR mutation positive advanced NSCLC patients with uncleared ctDNA have poor prognosis, whether they can benefit from combination therapy has not been reported. This study aims to investigate the efficacy and safety of combination therapy compared with furmonertinib monotherapy in advanced EGFR mutant NSCLC with uncleared circulating tumor cell DNA.