The goal of this observational study is to evaluate the efficacy and safety of oral metronomic vinorelbine and PD-1 inhibitors in elderly patients with unoperable, locally advanced or metastatic non-small-cell lung cancer. The primary end point was objective response rate (ORR), and the second end points included disease control rate (DCR), progression-free survival (PFS), and safety. Participants over 65 years old, received oral metronomic vinorelbine 40mg every week (20mg for patients over 80 years old), combined with PD-1 inhibitors every 3 weeks.

Inclusion Criteria:

• 1) All patients are histologically or cytologically confirmed non-small cell lung cancer. Genetic testing identifies no driver gene mutations.

  2) Male or female, age ≥ 65 years 3) Patients had not received first-line treatment. 4) KPS score ≥ 70 points (ECOG score 0-1 points), the expected survival ≥3 months; 5) No dysfunction of major organs. EcG, liver function, renal function, and blood count tests before treatment are normal or basically normal, but must meet the following experimental results:

  1. Blood routine test:

     Leukocyte WBC≥3.5×109/L; Neutrophil count (ANC) ≥ 1.5×109/L; Platelet (PLT) ≥ 80×109/L;

  2. Blood biochemical test:

     Total bilirubin (TBIL) ≤ 1.5 times the upper limit of normal values; Alanine aminotransferase (ALT/SGPT) and alanine transaminases (AST/SGOT) ≤ 2.5 times the normal high value (ULN), or ≤ 5 times the upper limit of normal value in patients with liver metastases; Serum creatinine (Cr) ≤ 1.5 times the upper limit of normal values;

  3. Cardiac function test: 50% of the left ventricular ejection function of the heart >; 6) The subject has good compliance, and can cooperates with follow-up.

     Exclusion Criteria:

• previously treated

Patients over 65 years old with unoperable, locally advanced or metastatic non-small-cell lung cancer