New FIT-DNA Mail-In Tests Boost Colorectal Cancer Screening Completion Rates in Under-Resourced US Health Centers

New study shows FIT-DNA mail-in tests improve colorectal screening in health centers, though follow-up colonoscopy rates remain a challenge.

By: AXL Media

Published: Apr 28, 2026, 6:04 AM EDT

Source: Information for this report was sourced from EurekAlert

Optimizing Early Detection in Underserved Medical Communities

In a significant effort to curb the rising mortality rates of colorectal cancer, a joint study between Mass General Brigham and UCLA Health has identified a more effective method for reaching unscreened populations. Researchers focused on community health centers in Boston and Los Angeles, which primarily serve under-insured and Medicaid-enrolled patients. The study, published in JAMA Internal Medicine, suggests that the logistical delivery of screening tools is just as critical as the technology itself. According to Jennifer Haas, a physician at Mass General Brigham, the goal of the intervention was to design a system that specifically accounts for the resource limitations of community health centers while maximizing patient participation.

Comparative Analysis of Stool-Based Screening Technologies

The trial compared two primary noninvasive methods: the traditional fecal immunochemical test (FIT) and the newer FIT-DNA kit. While both look for traces of blood, the FIT-DNA test adds a layer of complexity by identifying abnormal DNA associated with precancerous polyps. Beyond the clinical differences, the study highlighted a major operational distinction: FIT-DNA manufacturers provide a "wrap-around" assistance program that handles mailing and patient outreach. This administrative support contributed to a 28% completion rate for FIT-DNA users, outperforming the 23% completion rate seen in the FIT group, even when the latter received automated text-message reminders in English and Spanish.

The Geographic and Socioeconomic Profile of Participants

The study’s demographic focus was intentionally narrow, targeting adults aged 45 to 75 who were due for screening. Participants were predominantly Hispanic and relied on Medicaid for their healthcare coverage. This focus is part of the broader mission of the Stand Up To Cancer Colorectal Cancer Health Equity Dream Team, which seeks to eliminate the disparities in cancer outcomes for medically underserved groups. By testing these methods in real-world community health center environments, researchers were able to observe how external factors, such as insurance limitations and language barriers, influence the success of a mail-in screening campaign.