New trial finds patient navigation may help after a positive FIT

A new randomized clinical trial suggests that centralized patient navigation can help people complete a follow-up colonoscopy sooner after a positive fecal immunochemical test, or FIT. The result is encouraging, but it is best understood as an implementation finding: it may improve the path from screening to diagnosis, not replace the colonoscopy itself.

That distinction matters because a FIT is only one step in colorectal cancer screening. If the result is positive, the next step is usually a colonoscopy to look for a cause and, if needed, remove precancerous polyps or diagnose cancer early.

What a FIT does — and does not do

A FIT checks stool for hidden blood that can be a warning sign of polyps or cancer. CDC guidance says colorectal cancer screening can find precancerous polyps before they turn into cancer, and can also find cancer earlier, when treatment tends to work best. The CDC recommends screening begin at age 45 for adults at average risk.

But stool tests do not finish the job on their own. A positive result needs follow-up colonoscopy. Without that step, the screening process can stall.

What the new trial found

The trial, published in JAMA Internal Medicine and indexed in PubMed, studied patients in federally qualified health centers in North Carolina. Participants with positive FIT results were assigned either to usual care or to centralized telephone-based navigation that helped with colonoscopy scheduling, bowel-prep education, and other barriers.

The researchers reported that centralized navigation improved completion of follow-up colonoscopy and shortened the time to colonoscopy. Because this was a systems-level trial in safety-net settings, it speaks most directly to how clinics can improve follow-up — not to whether the underlying screening test itself is better than another test.

There are also limits to keep in mind. The study was done in one health-system setting and used a navigation program built around local workflow, so results may not look exactly the same everywhere.

Why follow-up still falls through the cracks

Recent research suggests this is not a new problem. A systematic review and network meta-analysis found that outreach and navigation-style interventions can help increase colorectal cancer screening uptake. A separate pragmatic trial in community health centers, also published in 2026, found that follow-up after abnormal stool tests can still be suboptimal in real-world settings.

That broader pattern helps explain why navigation gets attention: the barrier is often not willingness alone, but logistics, transportation, scheduling, bowel-prep questions, work conflicts, language access, or trouble getting through the system.

What about coverage and cost?

For many Medicare beneficiaries, preventive-service coverage can affect whether screening and follow-up are affordable. CMS lists colorectal cancer screening tests among Medicare preventive services, but the exact out-of-pocket cost can still depend on the plan, the setting, and how the service is billed.

For patients outside Medicare, coverage can also depend on the insurance plan, state rules, and how the follow-up colonoscopy is billed.

What readers can do

If you get a positive stool test result, the main next step is to follow up promptly with the clinician or clinic that ordered it. If scheduling, transportation, prep instructions, language access, or time off work are barriers, ask whether the practice has a navigation program or care coordinator.

And if you are due for colorectal cancer screening but have not started yet, ask which test best fits your situation. The right test is the one you can complete — and, if it is abnormal, complete the follow-up too.

Bottom line: abnormal stool tests need a colonoscopy follow-up. Navigation may help people get there faster, but it does not replace the diagnostic step.

Sources

Editorial note: Weence articles are researched from cited public-health, medical, regulatory, journal, and reputable news sources and may be drafted with AI assistance. They are checked for source support, clarity, and safety guardrails before publication.

This article is for general informational purposes only and is not medical advice. Research findings can be early or incomplete, and health guidance can change. Always talk with a qualified healthcare professional about personal symptoms, diagnosis, medications, vaccines, screenings, or treatment decisions. If you think you may have a medical emergency, call emergency services right away.