HER2 x HER2 exon 20 x EGFR exon 20 x EGFR x HER4

The primary purpose of this study is to compare the progression-free survival (PFS) in participants with locally advanced or metastatic non-small cell lung cancer (NSCLC) harboring human epidermal growth factor receptor 2 (HER2) exon 20 mutations when treated with poziotinib versus docetaxel.

This phase II trial tests whether poziotinib and ramucirumab work to shrink tumors in patients with EGFR Exon 20 gene mutant stage IV non-small cell lung cancer. Poziotinib may stop the growth of tumor cells by blocking some of the enzymes needed for cell growth. Ramucirumab is a monoclonal antibody that may interfere with the ability of cancer cells to grow and spread. Giving poziotinib and ramucirumab may help to control the disease.