Previous studies on bevacizumab in colorectal and ovarian cancers have demonstrated that continued anti-angiogenic therapy after disease progression can still provide clinical benefits. As a typical multi-targeted anti-angiogenic tyrosine kinase inhibitor, anlotinib hydrochloride has been approved in China for second-line or later treatment of advanced soft tissue sarcoma, where it has also shown significant potential. Retrospective studies have indicated the effectiveness of anlotinib in cross-line treatment for sarcoma. However, there is a lack of multi-center real-world studies evaluating the clinical efficacy of anlotinib in cross-line treatment for driver gene-negative advanced metastatic non-small cell lung cancer and extensive-stage small cell lung cancer.
This study aims to evaluate, through a retrospective multi-center study, the efficacy and safety of anlotinib monotherapy or combination regimens in the later-line treatment of driver gene-negative advanced metastatic non-small cell lung cancer and extensive-stage small cell lung cancer after anlotinib treatment failure, providing clinical evidence for cross-line therapy.