The purpose of the study is to simplify amivantamab intravenous administration and to reduce dose times, by assessing a new formulation of amivantamab, amivantamab subcutaneous and co-formulated with recombinant human hyaluronidase (SC-CF), for subcutaneous administration. This formulation has the potential to enhance both the patient and physician experience with amivantamab by providing easier and accelerated administration.