A friend was diagnosed with cancer this year and advised he had 3 months to live. He was given the option of immunotherapy at the Kinghorn Cancer Centre in Sydney and, though it had risks, took the option and his cancer has now gone. This exciting new approach to cancer treatment involves creating drugs that target cells of the immune system, not the cancer. Basically, the immune system is strengthened to protect against, or attack a specific tumour type.
https://www.garvan.org.au/foundation/immunotherapy-changing-way-think-cancer-treatment/