Immuno-oncology therapies are medicines that use the body’s immune system to fight cancer. Immuno-oncology therapiesa activate our immune system, making it able to recognise cancer cells and destroy them Immune oncology refers to immune system. It is a collection of organs, cells and special molecules that helps protect you from infections, cancer and other diseases. When a different (foreign) organism enters into the body, for example a bacterium, the immune system recognizes it and then attacks it, preventing it from causing harm. This process is called an immune response. Immuno-oncology therapies were found that provide lasting anti-cancer benefits to patients who previously had very few treatment options available to them. Several immuno-oncology therapies are in the process of being approved for use by patients in Europe, for the treatment of advanced melanoma, lung cancer, colorectal, renal, prostate cancer and many other cancers.