Efficacy was evaluated in MARIPOSA (NCT04487080), a randomized, active-controlled, multi-center trial of 1074 participants with exon 19 deletion or exon 21 L858R substitution mutation-positive locally advanced or metastatic non-small cell lung cancer and no prior systemic therapy for advanced disease. Participants were randomized (2:2:1) to receive lazertinib in combination with
amivantamab,
osimertinib monotherapy, or lazertinib monotherapy (an unapproved regimen for non-small cell lung cancer) until disease progression or unacceptable toxicity. The US
Food and Drug Administration (FDA) approved lazertinib in combination with amivantamab based on evidence from one clinical trial (MARIPOSA, NCT04487080) using data from 858 adult participants with locally advanced or metastatic non-small cell lung cancer with EGFR exon 19 deletions or exon 21 L858R substitution mutations. The trial was conducted at 204 sites in 26 countries including China, South Korea, Brazil, Japan, Malaysia, Spain, Taiwan, Russian Federation, Turkey, Thailand, Mexico, France, Italy, Ukraine, Argentina, Poland, the United States, India, Australia, Portugal, Israel, the United Kingdom, Germany, Belgium, Hungary, and Netherlands. Of the 858 participants, 12 were enrolled at sites in the United States. Among the 858 participants, all were evaluated for efficacy and 849 were evaluated for safety. == Society and culture ==