...52-year-old female patient with EGFR-mutated stage IV lung adenocarcinoma...The patient subsequently received a regimen of osimertinib and anlotinib combined with chemotherapy, followed by osimertinib and anlotinib maintenance treatment, and achieved a PR lasting for 9 months....first clinical evidence that the osimertinib and anlotinib-based regimen may be an effective therapy in overcoming resistance mediated by T790M-cis-C797S.