TQB2450 Injection Combined With Chemotherapy Followed by Sequential Combination With Anlotinib Hydrochloride Capsule for First-line Treatment of Advanced Squamous Non-small Cell Lung Cancer.

This is Phase 3, randomized, double-blind, parallel controlled study designed to evaluate the Progression Free Survive (PFS) of TQB2450 injection combined with Paclitaxel Injection and Carboplatin Injection Followed by TQB2450 injection combined with Anlotinib Hydrochloride Capsules versus Tislelizumab injection combined with Paclitaxel Injection and Carboplatin Injection followed by Tislelizumab injection in locally advanced (stage ⅢB/ⅢC) and metastatic or recurrent (Stage IV) squamous NSCLC subjects.The primary endpoint is PFS assessed by IRC.