Biologically Guided Radiation Therapy (BgRT) and Stereotactic Body Radiation Therapy (SBRT) to Tyrosine Kinase Inhibitor in Oligoprogressive Oncogenic Positive Non-Small Cell Lung Carcinoma

This phase II trial tests how well biologically guided radiation therapy (BgRT) and stereotactic body radiation therapy (SBRT) with osimertinib works for the treatment of EGFR positive non-small cell lung carcinoma that has spread from where it first started (primary site) to a limited number of anatomic sites (oligoprogressive). BgRT is radiation that uses specialized imaging to during treatment to target the active tumor and direct radiation to tumors in order to kill and shrink tumor cells. Stereotactic body radiation therapy uses special equipment to position a patient and deliver radiation to tumors with high precision. This method may kill tumor cells with fewer doses over a shorter period and cause less damage to normal tissue. Osimertinib is in a class of medications called kinase inhibitors. It works by blocking the action of a protein called EGFR that signals cancer cells to multiply. This helps slow or stop the spread of tumor cells. Giving BgRT with SBRT and osimertinib may kill more tumor cells in patients with oligoprogressive EGFR positive non-small cell lung carcinoma.