Underutilization of Aspirin in Patients With Advanced Colorectal Polyps

Colorectal cancer is the third-most common cause of cancer deaths in the United States, and advanced colorectal polyps are a major risk factor. Although there are no large-scale individual trials designed a priori to test the hypothesis, in meta-analyses of trials in primary prevention of cardiovascular disease, aspirin reduces risk of colorectal cancer. The US Preventive Services Task Force used a microsimulation model, including baseline risk factors, and concluded that aspirin reduces risk of colorectal cancer by 40%. Their guidelines suggest that without a specific contraindication, clinicians should routinely prescribe aspirin to patients with advanced colorectal polyps.

Written informed consent was obtained, and brief telephone interviews were conducted by trained interviewers for 84 men and women with biopsy-proven advanced colorectal polyps from 55 clinical practices.

Of the 84, 39 (46.4%) were men. The mean age was 66 with a range from 41 to 91 years. Among the 84, 36 (42.9%) reported taking aspirin.

These data suggest underutilization of aspirin by patients with advanced colorectal polyps. These data pose major challenges that require multifactorial approaches by clinicians and their patients, which include therapeutic lifestyle changes, adjunctive drug therapies, and screening. Lifestyle changes include treating overweight status and obesity and engaging in regular physical activity; adjunctive drug therapies include aspirin. These multifactorial approaches will be necessary to achieve the most good for the most patients with regard to prevention, as well as, early diagnosis and treatment of colorectal cancer in patients with advanced colorectal polyps.