Although the application of neoadjuvant immunotherapy in NSCLC has brought a new treatment option to many patients, most evidence is based on interventional clinical trials, in which the participants are highly selected and the therapeutic strategies are restricted, resulting in limited representation. There is still a lack of large-scale multicenter real-world data to further verify the benefits in long term overall survival, identify the potential beneficiaries and optimize the therapeutic strategies of neoadjuvant immunochemotherapy.
To meet the forementioned need, the investigators will perform a multi-center retrospective cohort to describe the patterns of neoadjuvant immunochemotherapy use in real world, compare the efficacy of neoadjuvant immunochemotherapy ,and evaluate prognosis of neoadjuvant immunochemotherapy.
