To determine the optimal objective response rate (ORR) of tislelizumab combined with albumin-bound paclitaxel and platinum agents in patients with KRAS-mutant lung cancer who are ineligible for curative surgery

Inclusion Criteria:

1. Ages 18-75 years (inclusive), regardless of gender;
2. Locally advanced (Stage IIIB, IIIC) or metastatic (Stage IV) non-small cell lung cancer (NSCLC) confirmed by histology as inoperable for curative intent (according to the 8th edition of the IASLC TNM staging system);
3. Or histologically confirmed inoperable mixed small cell lung cancer containing non-small cell lung cancer components;
4. KRAS gene mutation-positive;
5. KRAS mutation-positive lung cancer not amenable to radical surgery, treated with tislelizumab in combination with nab-paclitaxel and platinum chemotherapy.

Exclusion Criteria:

1. Patients with incomplete key baseline information and treatment data.
2. Patients who refuse to provide written informed consent (ICF).

Patients with KRAS-mutant, non-small cell lung cancer (NSCLC) who are ineligible for curative surgery; or patients with mixed small cell lung cancer (SCLC) containing an NSCLC component