Aims: In the previous COREA-TAXUS trial, a 6-month adjunctive use of celecoxib reduced target-lesion revascularization (TLR) without increased thrombotic risk. We aimed to confirm the effects of 3-month celecoxib in patients receiving drug-eluting stent (DES) implantation in the larger prospective, randomized trial.
Methods and results: Patients (n = 909) treated for native coronary lesions were randomized into four groups: the control or the celecoxib group with stratification by stents: paclitaxel-eluting stent (PES) or zotarolimus-eluting stent (ZES). In the celecoxib group, 200 mg of celecoxib was given twice daily for 3 months after the procedure. The primary endpoint was in-stent late loss (LL) at 6 months. In-stent LL was significantly lower in the celecoxib group than the control group (0.64 ± 0.54 vs. 0.55 ± 0.47 mm, P = 0.02). The trend of LL reduction in the celecoxib group was maintained in the ZES and PES subgroups, although it did not reach statistical significance. There was a trend towards the reduced clinically driven TLR in the celecoxib group (5.7 vs. 3.2%, log-rank P = 0.09), but adverse cardiac events rate did not differ between the two groups (composite of cardiac death, non-fatal myocardial infarction, and TLR; 8.6 vs. 7.7%, log-rank P = 0.84). Non-fatal myocardial infarction and cardiac death occurred in 1.6% of the patients in the celecoxib group when compared with 0.2% in the control group (log-rank P = 0.03).
Conclusion: Three-month adjunctive celecoxib would be useful to reduce LL of DES. However, this study may raise the concern about increased thrombotic risk with celecoxib even in patients receiving dual anti-platelet therapy.