The purpose of this research is to determine the safety and tolerability, the best dose for future development, as well as antitumor activity of a new antibody drug conjugate (ADC) called MYTX-011. MYTX-011 is a new drug, being studied in humans for the first time for treatment of advanced non-small cell lung cancer. The study team is investigating this drug to help treat lung cancers that are resistant to standard medications. This drug targets a protein called cMET on the cancer cell. MYTX-011 will attach to the cMET and release chemotherapy into the cancer cell.

This study is for patients that have been diagnosed with non-small cell lung cancer. The purpose of this study is to compare the usual treatment alone to using pembrolizumab plus the usual treatment. The investigational drug in this study is pembrolizumab. This drug, pembrolizumab is already approved by the FDA for use in patients with more advanced lung cancer. Participants can expect to be on treatment for up to a year. Participants will be followed for up to 10 years after completion of treatment.