Immune checkpoint inhibition is a form of immunotherapy that blocks checkpoint proteins on immune cells, boosting the body's immune response against cancer cells. Checkpoint inhibitors such as pembrolizumab (Keytruda®, Merck), nivolumab (Opdivo®, Bristol-Myers Squibb), atezolizumab (Tecentriq®, Genentech), durvalumab (Imfinzi®, AstraZeneca), cemipl...