Performance of PRECISE-DAPT Score for predicting upper gastrointestinal bleedings in patients with stable coronary artery disease on long-term antithrombotic therapy

Abstract

Funding Acknowledgements Type of funding sources: None. Background PRECISE-DAPT score has become developed for predicting the risk of bleedings in patients treated with coronary stenting and subsequent 1-year dual antiplatelet therapy. The utility of PRECISE-DAPT score in the setting of all-comer CAD population with different regimes of long-term antithrombotic therapy remains unclear. Upper gastrointestinal bleeding (UGIB) is the predominant hemorrhagic complication in CAD patients; however, the PRECISE-DAPT capacity with respect to this type of bleeding has never been evaluated. Purpose to evaluate the role of PRECISE-DAPT score in the assessment of upper gastrointestinal bleeding risk in patients with stable coronary artery disease (CAD) receiving long-term antithrombotic therapy. Methods Data were obtained from single center prospective Registry of Long-term AnTithrombotic TherApy (REGATTA-1 NCT04347200). The PRECISE-DAPT score was calculated in a total of 434 patients with stable CAD (77,4% males, median age 61 [IQR 55-69] yrs). Most of the patients 93,6 % received DAPT due to recent PCI with a switch to aspirin monotherapy after 6 months. 1,4 % of patients received aspirin only, 22 (5,1%) of patients received oral anticoagulants because of concomitant atrial fibrillation. The primary outcome was any overt UGIB (BARC ≥2). Results In a total of 451 person-years of follow-up (median follow-up was 378 days, IQR 365-421), UGIB occurred 40 patients (incidence at 1 year 8.9 per 100 patients). The median time to first occurrence of UGIB was 55 [IQR 8-115] days. Median PRECISE-DAPT score was 12 points [IQR 6; 20]. The cut-off value for PRECISE-DAPT score to predict UGIB was 16 points (AUC = 0.732, p = 0.0001, 95% CI 0.367-0.827) that correspond to at least moderate bleeding risk according to original score discrimination. Kaplan-Meier bleeding rates were separated by score cut-off (Log-Rank p < 0,001) and the risk difference remains consisted in regression model (OR 2.79 [1.07-7.29]; p = 0.0348). Conclusion(s): PRECISE DAPT score demonstrated good discriminatory capacity (cut-off 16 points) with respect to UGIB in patients with stable CAD receiving long-term antithrombotic therapy.