Evaluation of the Efficacy and Safety of AL2846 Capsule Combined With TQB2450 Injection Compared to Docetaxel Injection in Advanced Non-small Cell Lung Cancer Patients Who Have Failed With Immunotherapy.

Inclusion Criteria:

* The subjects voluntarily joined the study, signed an informed consent form, and had good compliance
* Age: 18-75 years; Eastern Eastern Cooperative Oncology Group performance status (ECOG PS) score: 0-1; BMI ≥ 17 at baseline;
* Patients with histologically or cytologically confirmed inoperable and inoperable locally advanced (stage IIIB/IIIC), metastatic or recurrent (stage IV) nonsmall-cell lung cancer (NSCLC) who cannot receive radical concurrent chemoradiotherapy;
* Failure of platinum-based chemotherapy and immune checkpoint inhibitors for incurable locally advanced or metastatic or recurrent NSCLC;
* Number of lines of prior systemic therapy received for locally advanced or metastatic/recurrent disease that is unresectable/not amenable to radical chemoradiation;
* Confirmed to have at least one measurable lesion according to Response Evaluation Criteria In Solid Tumours（ RECIST 1.1） standard;
* Adequate major organ function;

Exclusion Criteria:

* Patients who Have been diagnosed or currently had other malignant tumors;
* Presence of epidermal growth factor receptor (EGFR) mutation, anaplastic lymphoma kinase (ALK) fusion, c-ros oncogene 1 (ROS1) fusion and other significant driver gene mutations;
* Factors affecting oral drugs;
* Major surgical treatment, incisional biopsy or obvious traumatic injury and long-term uncured wound or fracture within 28 days before the start of study treatment;
* Hyperactive/venous thrombotic events within 6 months;
* Subjects with any severe and/or uncontrolled disease;
* Previously received other immunotherapy and Research Advance of Small Molecular Targeted Anti-Tumor Agents Tyrosine kinase inhibitors (TKIs);
* According to the investigator's judgment, there are concomitant diseases that seriously endanger the subject's safety or affect the completion of the study, or there are other reasons that are not suitable for the subject;