Abstract
e18911 Background: Stool-based colorectal cancer (CRC) screening with the multi-target stool DNA (mt-sDNA) test is a guideline endorsed strategy for average-risk individuals age ≥45 years and provides a reference for value-based pricing (VBP); maximum price at which a willingness-to-pay threshold is reached. Blood-based tests (BT) are an emerging screening option. Using recent reported BT performance data from the ECLIPSE study (Guardant Health, Inc.)1, the potential VBP of BT compared with multi-target stool DNA (mt-sDNA) was analyzed. Methods: Using the validated CRC-AIM model, we simulated a cohort of 2 million average-risk individuals who received screening with BT at 1, 2, or 3-year intervals or triennial mt-sDNA between the ages of 45-75 years. For BT, CRC sensitivity, advanced adenoma sensitivity, and specificity were based on reported clinical trial data (83%, 13%, and 90%, respectively). Adherence assumptions for BT and mt-sDNA screening were modeled at perfect (100%) or real-world mt-sDNA adherence (RWE). Key outcomes were life-years gained (LYG) per 1000 individuals vs no screening, and VBP of BT vs mt-sDNA ($895 vs $508) was assessed at a willingness-to-pay (WTP) threshold of $50,000 per quality-adjusted life-year. Results: The triennial mt-sDNA was more effective and less costly vs BT at all intervals with both perfect and RWE adherence at the current price. Compared with mt-sDNA screening, LYG of screening with BT was lower (320 vs. 241-314) and the VBP should be at most $49 and $11 and no-cost at the 1-, 2-, and 3-year intervals, respectively (Table), when perfect adherence is assumed. With RWE adherence, the LYG with mt-sDNA was 306 compared to 229-284 with BT across all intervals. To be comparable to RWE triennial mt-sDNA screening, the maximum VBP for BT would need to be $13 at the 1-year interval and no cost for 2- and 3-year interval. Conclusions: Compared to annual, biannual, and triennial BT, triennial mt-sDNA was more effective at all intervals and 44% to 102% less costly. The maximum price of BT should not exceed $49 to be considered a cost-effective option compared to mt-sDNA when WTP is 50,000. [Table: see text]
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