Phase 1b/2 Platform Study of Select Immunotherapy Combinations in Participants With Advanced Non-small Cell Lung Cancer (NSCLC)

Inclusion Criteria:

* Adult patient aged ≥ 18 years
* Written informed consent
* Histologically (squamous or non-squamous) or cytologically documented locally advanced NSCLC not eligible for surgical resection and/or definitive chemoradiation, or metastatic NSCLC
* No prior systemic treatment for locally advanced or metastatic NSCLC
* High tumor cell PD-L1 expression \[Tumor Proportion Score (TPS) ≥50%\] based on documented status as determined by an approved test
* Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1
* Measurable disease as determined by RECIST v1.1

Exclusion Criteria:

* Tumors harboring driver mutations/genetic aberrations for which targeted therapies are approved as frontline treatment (e.g. EGFR mutation, ALK fusion oncogene, ROS1 aberrations)
* Prior immune checkpoint inhibitor therapy
* Active brain metastases
* Participants with active and uncontrolled hepatitis B virus (HBV) or hepatitis C virus (HCV) infection
* Uncontrolled HIV infection. Participants with HIV who have controlled infection (undetectable viral load and CD4 count above 350 either spontaneously or on a stable antiviral regimen) are allowed to enroll
* Active, known or suspected autoimmune disease or immune deficiency
* History of hypersensitivity reactions to any ingredient of the investigational medicinal product (IMP) and other monoclonal antibody (mAbs) and/or their excipients
* History of interstitial lung disease, idiopathic pulmonary fibrosis, drug-induced pneumonitis, idiopathic pneumonitis or active pneumonitis ≥ grade 2
* History of inflammatory bowel disease or colitis ≥ grade 2
* History of hemophagocytic lymphohistiocytosis.
* Systemic chronic steroid therapy (\>10mg/d prednisone or equivalent)
* Clinically significant infection, as assessed by the investigator
* Pregnant or breast-feeding (lactating) women
* Participants with a history of allogeneic organ transplantation (e.g., stem cell or solid organ transplant)
* Any medical condition that would in the investigator's judgement prevent the participant's participation in the clinical study