An Open-label, Multicenter, Multicohort, Phase 2 Study to Evaluate Enfortumab Vedotin in Subjects with Previously Treated Locally Advanced or Metastatic Malignant Solid Tumors (EV-202)

One goal of this study is to find out if enfortumab vedotin is effective and safe as a treatment for people with breast, lung, head and neck, gastric, gastroesophageal junction, or esophageal cancer. Researchers will look at how enfortumab vedotin can act in the body. Enfortumab vedotin is expected to work by attacking cells that have a protein called Nectin-4, commonly found in cancer cells. Another goal of this study is to find out if enfortumab vedotin is effective and safe when combined with another US Food and Drug Administration (FDA) approved medicine, pembrolizumab (brand name KEYTRUDA®), and used as a treatment for people with head and neck cancer who have not received previous chemotherapy treatment other than the chemotherapy that may have been given in combination with radiation therapy or right before or right after surgery in the past.