Immunotherapy is a form of treatment for cancer that works by provoking the immune system of the body into tracking down and destroying cancer cells. CAR-T-CT is a treatment that makes use of CAR-T cells (CARs), which are T cells (T-Cs) that have been modified in some way by the incorporation of engineered synthetic receptors. This therapy is designed to destroy cells that express a specific target antigen, and its primary objective is to do so by locating and killing those cells. Due to the fact that Immune CPI inhibits the production of specific proteins (checkpoint protein) on immune cells as well as on cancer cells thereby preventing the immune system from combating cancer, Immune CPI are used to treat cancer. By inhibiting the activity of these proteins, CPI is able to contribute to the process of stimulating the immune system to specifically target and destroy cancer cells. However, there are still some limitations that exist, and these have the potential to reduce the effectiveness of the treatment or produce some side effects that are life-threatening. This article makes a few suggestions for innovative steps that could be taken in order to both improve the current state of affairs and find answers to any problems that may arise in the near or distant future. The article makes these suggestions in order to improve the current state of affairs and find answers to any problems that may arise in the future.