This is a randomized, open-label, multi-center, global phase II/III clinical study to evaluate the efficacy and safety of HLX43 monotherapy or HLX43 in combination with HLX07 vs. docetaxel in the treatment of advanced squamous NSCLC after failure of first-line treatment.
Have a full understanding of the study content, process, and possible adverse reactions before the study, and sign the informed consent form (ICF); voluntarily participate in the study; be able to complete the study as per protocol requirements;
Aged ≥ 18 years at the time of signing the ICF, male or female;
Histologically or cytologically confirmed squamous NSCLC, locally advanced (stage IIIB/IIIC) or metastatic (stage IV) NSCLC not suitable for radical treatment (complete surgical resection, concurrent/sequential radio-chemotherapy) according to the Union for International Cancer Control and the American Joint Committee on Cancer (AJCC) TNM staging system (8th edition);
Subjects must have progressed after platinum-based chemotherapy in combination with anti-PD-1/anti-PD-L1 therapy as the only prior first-line treatment or progressed after platinum-based chemotherapy followed by anti-PD-1/anti-PD-L1 therapy (in any order) as the only prior second-line treatment.
Histologically or cytologically confirmed tumor containing components of small cell lung cancer, neuroendocrine carcinoma, or sarcomatoid carcinoma;
Prior treatment with any medication targeting topoisomerase I, including chemotherapy or ADCs;
Prior treatment with docetaxel;
Radical radiation therapy within 3 months prior to the first dose;