A Study to Investigate Safety and Efficacy of Osimertinib and Amivantamab in Participants With Non-small Cell Lung Cancer With Common Epidermal Growth Factor Receptor Mutations

This is a Phase II, open-label, single-arm, multi-centre study to assess the safety and efficacy of osimertinib with amivantamab as first-line treatment in adult participants with a local preexisting positive approved tissue test result for EGFRm (Ex19del or L858R), locally advanced (clinical stage IIIB, IIIC), metastatic (clinical stage IVA or IVB), or recurrent non-squamous NSCLC. This study consists of screening period of 28 days, followed by the study intervention period wherein the participant receives treatment from Day 1 until disease progression or study intervention discontinuation. Participants will be followed up at week 6 (± 1 week), week 12 (± 1 week), then every 12 weeks (± 1 week) until radiological disease progression. Survival follow up will be performed every 12 weeks. Upon study intervention discontinuation a 28 day follow up visit will be performed.