Study of Izalontamab Brengitecan (BMS-986507) in Combination With Osimertinib Versus Osimertinib Monotherapy or Osimertinib in Combination With Platinum-based Chemotherapy for EGFRmt Non-small Cell Lung Cancer (IZABRIGHT-Lung02)

Inclusion Criteria: * Participants must have histologically or cytologically confirmed non-squamous NSCLC, newly diagnosed locally advanced (Stage IIIB/IIIC), metastatic (Stage IVA/IVB), or recurrent disease not amenable to curative surgery or definitive radiotherapy and requiring systemic treatment * Participants must have documented EGFR-TKI-sensitizing mutation (exon 19 deletion or exon 21 L858R substitution) * Participants must have measurable extracranial disease per RECIST v1.1 as assessed by the investigator * Participants must have ECOG Performance Status 0-1 Exclusion Criteria: * Participants must not have unstable, symptomatic, or uncontrolled CNS metastases, including brain, leptomeningeal disease, and/or spinal cord compression * Participants must not have history of ILD/pneumonitis requiring treatment with steroids (≥ Grade 2), or current or suspected ILD/pneumonitis * Participants must not have clinically significant cardiac disease * Other protocol-defined inclusion/exclusion criteria apply.