While colorectal cancer rates are dropping overall, a worrying trend is emerging: cases are rising in adults between the ages of 20 and 50, who are not screened regularly. Given the necessity of early detection for current treatments, there is a growing need for effective treatments in advanced cases. Immunotherapy for colorectal cancer can be effective, especially in cases where tumors show high microsatellite instability. Join medical oncologist Dr. Van Morris of the University of Texas MD Anderson Cancer Center for a discussion of biomarkers, immunotherapies, and what patients with colorectal cancer need to know. Ask your questions about genetic and genomic testing, treatment options, and other topics in our live Q&A.