The drug being tested in this study is called mobocertinib. Mobocertinib is being tested to treat people who have NSCLC with EGFR exon-20 insertion mutations who have failed the current standard of care (SOC) have no approved treatment therapies. Participants will be treated with mobocertinib until they experience progressive disease (PD) that requires an alternate therapy in the opinion of the physician, intolerable toxicity, or another discontinuation criterion. Treatment may be continued after PD if, in the opinion of the physician, the participant continues to experience clinical benefit.~The study will enroll approximately 100 participants. Enrollment will be based on unsolicited participant requests. All participants will be assigned to receive-~• Mobocertinib 160 milligram (mg)~Dose interruptions or reductions (first dose reduction- 120 mg and second dose reduction- 80 mg) will be implemented for participants who experience treatment-related adverse events (TEAEs), based on the clinical judgment of the investigator.~This multi-center trial will be conducted in the United States. The overall time to participate in this expanded access study is 4 months. The follow-up period for survival begins at the end of treatment (up to 30 days past last dose) and continues until participant discontinues.
The purpose of this study is to provide expanded compassionate use access to mobocertinib, in participants with locally advanced or metastatic NSCLC harboring EGFR in-frame exon 20 insertion mutations and who have received at least 1 prior line of therapy for locally advanced or metastatic disease.