Camrelizumab Combined With Apatinib Mesylate or Camrelizumab Alone for First-line Treatment in Subjects With Programmed Death Ligand 1 (PD-L1) Positive Relapsed or Advanced Non-small Cell Lung Cancer (NSCLC)

A Randomized, Open-Label, Controlled, Multicenter Phase III Study of Camrelizumab Combined With Apatinib Mesylate or Camrelizumab Alone Versus Platinum-based Chemotherapy for First-line Treatment in Subjects With PD-L1 Positive Relapsed or Advanced NSCLC