Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Observational
Official Title: Assessing Intratumoral Heterogeneity and Chemoradiation Response in Locally Advanced Rectal Cancer Utilizing Sequencing and PET/CT
Brief Summary: This research trial studies genetic mutations in blood and tissue samples to see if they can be used to predict treatment response in patients with locally advanced rectal cancer undergoing chemoradiation. Studying samples of blood and tumor tissue in the laboratory from patients with cancer may help doctors learn more about genetic mutations or changes that occur in deoxyribonucleic acid (DNA) and help doctors understand how patients respond to treatment.