FIT could play an important role in FCRC surveillance. Surveillance with 10-yearly colonoscopy and 2-yearly FIT between colonoscopies from ages 40 to 80 years increased QALYs and reduced colonoscopy burden and costs compared with current FCRC surveillance.
The authors assessed whether familial colorectal cancer (FCRC) surveillance in individuals without hereditary CRC can be optimized METHODS: The Adenoma and Serrated Pathway to Colorectal Cancer-FCRC model simulates CRC development in individuals with a family history of CRC at 2-fold and 4-fold increased CRC risk compared with the general population. The authors simulated a strategy without surveillance, the current Dutch guideline (5-yearly colonoscopy between ages 45 and 75 years), and the following 3 sets of alternative strategies: colonoscopy surveillance, surveillance combining colonoscopy and fecal immunochemical test (FIT), and FIT-based surveillance. Each set included a range of strategies differing in age range and test interval. The optimal strategy was defined as the strategy with highest quality-adjusted life-years (QALYs) satisfying all of the following criteria: in the (near-)efficiency area of the cost-effectiveness frontier and compared with current surveillance; noninferior effectiveness; no substantial increase in colonoscopy burden; and not more expensive.
The optimal strategy was 10-yearly colonoscopy with 2-yearly FIT between colonoscopies from ages 40 to 80 years for both 2-fold and 4-fold increased CRC risk. At 2-fold risk, this strategy prevented 0.8 more CRC deaths, gained 15.8 more QALYs at 731 fewer colonoscopies, and saved €98,000 over the lifetime of 1000 individuals compared with current surveillance. At 4-fold risk, figures were 2.1 more CRC deaths prevented, 37.0 more QALYs gained at 567 fewer colonoscopies, and €127,000 lower costs. Current surveillance was not (near-)efficient.
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