Study Status: Completed
Recruit Status: Completed
Study Type: Observational
Official Title: A Pilot Study of TGF-beta as a Potential Target for Prevention of Radiation-Induced Injury
Brief Summary:
RATIONALE: Measuring levels of transforming growth factor-beta (TGF-beta) in the blood of patients with epithelial cancers (head and neck, lung, breast, colorectal, and prostate) may help doctors predict how patients will respond to treatment with radiation therapy.
PURPOSE: This research study is measuring levels of TGF-beta in patients with epithelial cancers who are undergoing radiation therapy.