413P Association of Concomitant Medications on Survival Outcomes in Cancer Patients Treated with Immune Checkpoint Inhibitors: Analysis of Health Insurance Review and Assessment Database

Recent evidence suggested that medications regulating immune homeostasis and gut microbiota could affect the efficacy of immune checkpoint inhibitors (ICI). This study aimed to investigate the impact of concomitant medications on the survival outcomes in cancer patients treated with ICI in Korean population data.