A Study of SKB264 in Combination With Pembrolizumab Versus Chemotherapy in Combination With Pembrolizumab as First-Line Treatment for PD-L1 Negative Patients With Locally Advanced or Metastatic Non-Squamous Non-Small Cell Lung Cancer

Summary

The study aims to evaluate the efficacy and safety of SKB264 in combination with pembrolizumab versus chemotherapy in combination with pembrolizumab in the first-line treatment of patients with locally advanced or metastatic non-squamous NSCLC with PD-L1 negative.

Eligibility

Inclusion Criteria:

1. Histologically or cytologically confirmed non-squamous NSCLC, and unsuitable for radical surgery and/or radical concurrent/sequential radiochemotherapy, locally advanced (Stage IIIB/IIIC) or metastatic (Stage IV) NSCLC;
2. EGFR-sensitive mutation negative \[no exon 19 deletion (19-Del) or exon 21 point mutation (L858R mutation)\] and ALK fusion gene negative, without known ROS1 gene fusion, NTRK gene fusion, BRAF V600E mutation, etc. that have been approved for targeted therapy driving gene alterations;
3. No prior systemic anti-cancer therapy for locally advanced or metastatic NSCLC;
4. Participants whose tumours are PD-L1 TPS \< 1%;
5. At least one measurable lesion per RECIST v1.1;
6. Eastern Cooperative Oncology Group (ECOG) performance status of 0 to 1 with no worsening within 7 days prior to randomization;
7. A life expectancy of at least 12 weeks;
8. Adequate organ and bone marrow function;

Exclusion Criteria:

1. Histologically or cytologically confirmed tumors with a component of small cell lung cancer, neuroendocrine carcinoma, sarcomatoid carcinoma, or squamous cell carcinoma exceeding 10%;
2. Previously received immune checkpoint inhibitors,checkpoint agonists or any treatment targeting the immune mechanism of tumors such as immune cell therapy;
3. Active second malignancy;
4. Symptomatic or uncontrolled cardiovascular disease，serious thromboembolic；
5. History of noninfectious pneumonitis/interstitial lung disease (ILD) that required steroids or has current pneumonitis/ILD;
6. Active infection requiring systemic therapy within 2 weeks of randomization;
7. Active hepatitis B or hepatitis C virus infection;
8. Human immunodeficiency virus (HIV) positive or history of acquired immunodeficiency syndrome (AIDS); known active syphilis infection;
9. Major surgery within 4 weeks prior to randomization or expected major surgery during the study;
10. Pregnant or lactating women;

Conditions3

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