The U.S. Preventive Services Task Force (USPSTF) appears on the verge of expanding colorectal cancer screening to individuals ages 45 to 49, based on its latest draft recommendations. If it does, Exact Sciences Corp. is ready. A study in Cancer Prevention Research demonstrated that the Madison, Wis.-based company's Cologuard multitarget stool DNA test had better than 95% specificity in individuals with nonadvanced precancerous lesions or negative findings on colonoscopy.