A Study of Lazertinib With Subcutaneous Amivantamab Compared With Intravenous Amivantamab in Participants With Epidermal Growth Factor Receptor (EGFR)-Mutated Advanced or Metastatic Non-small Cell Lung Cancer

Inclusion Criteria: * Have histologically or cytologically confirmed, advanced or metastatic non-small cell lung cancer (NSCLC), characterized by either epidermal growth factor receptor (EGFR) Exon 19 deletion (Exon 19del) or Exon 21 leucine 858 to arginine substitution (Exon 21 L858R) mutation by an Food and Drug Administration (FDA)-approved or other validated test of either circulating tumor deoxyribonucleic acid (ctDNA) or tumor tissue in a clinical laboratory improvement amendments (CLIA) certified laboratory (sites in the United Started \[US\]) or an accredited local laboratory (sites outside of the US) * Have progressed on or after osimertinib (or another approved 3rd generation epidermal growth factor receptor \[EGFR\] tyrosine kinase inhibitor \[TKI\]) and platinum-based chemotherapy (irrespective of order). a) The 3rd generation EGFR TKI must have been administered as the first EGFR TKI for metastatic disease or as the second TKI after prior treatment with first- or second-generation EGFR TKI in participants with metastatic EGFR T790M mutation positive NSCLC. b) Participants who decline or are otherwise ineligible for chemotherapy may be enrolled after discussion with the medical monitor. c) Any adjuvant or neoadjuvant treatment, whether with a 3rd generation EGFR TKI or platinum based chemotherapy, would count towards the prior treatment requirement if the participant experienced disease * Have at least 1 measurable lesion, according to response evaluation criteri…