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Colorectal cancer is the most common gastrointestinal cancer, and sadly its prevalence is increasing in younger age groups. There is an unmet need for new treatment options for this type of cancer, where surgery, chemotherapy and targeted therapy are the only available treatment options for many patients. With increasing survival rates, less side effects and demand for better quality of life, the role of newer drugs especially immunotherapy in the treatment of colorectal cancer is being extensively evaluated in many countries. To understand how immunotherapy for colorectal cancer works and who can undertake the treatment, we connected with Dr. G. Vamshi, Krishna Reddy, Director-Oncology Services, Consultant Medical Oncologist and Hemato Oncologist, Yashoda hospitals Hyderabad. Here's what he says about this cancer treatment method. What is immunotherapy? Immunotherapy involves use of injections to help the person's own immune system to better recognize and destroy the cancer ...