Study Status: Completed
Recruit Status: Completed
Study Type: Interventional
Official Title: Bowman Birk Inhibitor Concentrate and Oral Leukoplakia: A Randomized Phase IIb Trial
Brief Summary: This randomized phase II trial is studying how well Bowman-Birk inhibitor concentrate works in preventing cancer in patients with oral leukoplakia. Chemoprevention is the use of certain substances to keep cancer from forming, growing, or coming back. The use of Bowman-Birk inhibitor concentrate, a substance made from soy, may keep cancer from forming in patients with oral leukoplakia