Ociperlimab With Tislelizumab and Chemotherapy in Participants With Untreated Metastatic Non-Small Cell Lung Cancer

Key Inclusion Criteria

• Participants had histologically or cytologically confirmed locally advanced or recurrent non-small cell lung cancer (NSCLC) that was not eligible for curative surgical resection and/or definitive radiotherapy, with or without chemotherapy. Alternatively, participants had metastatic non-squamous or squamous NSCLC.
• Participants had not received any prior systemic therapy for locally advanced or metastatic squamous or non-squamous NSCLC, including but not limited to chemotherapy or targeted therapies. Those who had previously received neoadjuvant or adjuvant chemotherapy, or chemoradiotherapy with curative intent for non-metastatic disease, were required to have experienced a disease-free interval of at least 6 months from the last dose of chemotherapy and/or concurrent radiotherapy prior to randomization.
• Archival tumor tissue or a fresh biopsy (if archival tissue was unavailable) was required for programmed death-ligand 1 (PD-L1) level assessment and retrospective biomarker analyses. Only participants with evaluable PD-L1 results were considered eligible.
• Participants were required to have had at least one measurable lesion as assessed by the investigator in accordance with the Response Evaluation Criteria in Solid Tumors (RECIST) version 1.1.
• Participants had an Eastern Cooperative Oncology Group (ECOG) performance status score of 0 or 1.

Key Exclusion Criteria

• Participants were excluded if they had known mutations in any of the following genes:
• Epidermal Growth Factor Receptor (EGFR): For participants with non-squamous NSCLC and unknown EGFR mutation status, tissue-based EGFR testing (performed either locally or at a central laboratory) or an endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA)-based EGFR test was required prior to enrollment. Those found to harbor EGFR-sensitizing mutations were excluded.
• Anaplastic Lymphoma Kinase (ALK) fusion oncogene.
• B-Raf Proto-Oncogene (BRAF) V600E mutation.
• ROS Proto-Oncogene 1 (ROS1) rearrangement.
• Participants who had received prior treatment with EGFR inhibitors, ALK inhibitors, or other targeted therapies for known driver mutations.
• Participants who had received any prior therapies targeting T-cell costimulatory or checkpoint pathways (e.g., programmed cell death protein 1 [PD-1], programmed death-ligand 1 [PD-L1], or cytotoxic T-lymphocyte-associated protein 4 [CTLA-4]) for metastatic NSCLC were excluded.
• Participants who had any condition requiring systemic treatment with corticosteroids at a dose greater than 10 mg of prednisone (or equivalent) daily, or other immunosuppressive medications within 14 days prior to randomization.
• Participants who had an active infection, including but not limited to tuberculosis, requiring systemic antibacterial, antifungal, or antiviral treatment within 14 days prior to randomization were excluded.

Note: Additional protocol-defined inclusion and exclusion criteria may have applied.