Colorectal cancer: new advances in immunotherapy.

Colorectal cancer remains the second leading cause of cancer-related mortality in the United States. Although surgical resection is still the primary treatment for colorectal cancer, in recent years, there has been a remarkable progress in the development of new therapies to treat colorectal cancer. Response rates have increased substantially and new immunotherapeutic approaches are shedding new light in the battle against the disease. This review will focus on the current immunotherapeutic approaches being developed and will discuss clinical data for some of these new treatments.