Patients with EGFR ex19del or EGFR L858R mutations, the most common EGFR mutations in NSCLC, currently face a poor prognosis and limited treatment options after disease progression on osimertinib1,2,3,4 In the MARIPOSA-2 study, amivantamab in combination with chemotherapy significantly reduced the risk of disease progression or death by 52 percent compared to chemotherapy alone, and is the first treatment regimen to show improvement in progression-free survival in this patient population5
