Pembrolizumab, Paclitaxel, Carboplatin, and Radiation Therapy in Treating Patients With Stage II-IIIB Non-Small Cell Lung Cancer

Inclusion Criteria: * Written informed consent and Health Insurance Portability and Accountability Act (HIPPA) authorization for release of personal health information * Subjects with any kind of non-small cell lung carcinoma (NSCLC) histology documented by histology or cytology from bronchial brushing or washing, or needle aspiration of a defined lesion but not from sputum cytology alone * Must have American Joint Committee on Cancer (AJCC) 7th edition (ed) inoperable stage II disease requiring chemoradiation therapy or stage IIIA or IIIB NSCLC based on appropriate staging studies including brain magnetic resonance imaging (MRI) or head computed tomography (CT), CT chest, and fluorodeoxyglucose (FDG) positron emission tomography (PET)/CT scan * Be willing to provide tissue from a newly obtained core or excisional biopsy of a tumor lesion; newly-obtained is defined as a specimen obtained up to 8 weeks (56 days) before initiation of treatment on day 1; subjects for whom newly-obtained samples cannot be provided (e.g. inaccessible or subject safety concern) may submit an archived specimen only upon agreement from the sponsor or may undergo fine needle aspiration * Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1 within 14 days before registration for protocol therapy * Absolute neutrophil count (ANC) \>= 1,500/mcL * Platelets \>= 100,000/mcL * Hemoglobin \>= 9 g/dL or \>= 5.6 mmol/L without transfusion or erythropoietin (EPO) dependency (within 7 days of …