Still, work continues to develop CRISPR-based tools that may eventually help cure cancer or at least leverage what we know about the genetic causes of cancer to guide treatment decisions. Dr. Alan B. Copperman, director of the division of reproductive endocrinology and vice-chairman of the department of obstetrics, gynecology and reproductive science at the Icahn School of Medicine at Mount Sinai, says, "in the near future, we most likely will see CRISPR and other gene editing technologies revolutionize cancer therapy. One potential application involves removing some of a patient's own immune cells (T Cells), re-programming them using CRISPR and then infusing these cells back into the patient to fight the cancer. This personalized immunotherapy approach should help in fighting off many different types of cancers." This method is already being used as a treatment for some cases of leukemia and lymphoma.
Source : https://health.usnews.com/health-care/patient-advice/articles/2018-09-12/whats-the-likelihood-that-crispr-will-cure-cancer156