A prospective randomised comparison of titanium-nitride-oxide-coated bioactive stents with everolimus-eluting stents in acute coronary syndrome: the BASE-ACS trial

EuroIntervention. 2012 Jul 20;8(3):306-15. doi: 10.4244/EIJV8I3A49.


Aims: Titanium-nitride-oxide-coated bioactive stents (BAS) have demonstrated a favourable outcome when compared with paclitaxel-eluting stents in patients with acute myocardial infarction (MI). In a prospective randomised non-inferiority study design, we compared the safety and efficacy of BAS versus everolimus-eluting stents (EES) in patients with acute coronary syndrome (ACS).

Methods and results: We randomised 827 patients with ACS (1:1) to either BAS (417) or EES (410). The primary endpoint was a composite of cardiac death, non-fatal MI or ischaemia-driven target lesion revascularisation (TLR) at 12-month follow-up. Analyses were performed by intention to treat. At 12-month follow-up, the primary composite endpoint occurred in 9.6% of patients in the BAS group and 9.0% of those in the EES group (HR [hazard ratio] 1.04, 95% CI [confidence interval] 0.81-1.32, p=0.81, p for non-inferiority =0.001). Non-fatal MI was significantly less frequent in the BAS as compared with the EES group (2.2% vs. 5.9%, p=0.007). However, the individual rates of cardiac death and ischaemia-driven TLR were similar between the two groups (1.9% vs. 1.0%, p=0.39, and 6.5% vs. 4.9%, p=0.37, respectively).

Conclusions: In patients presenting with ACS, BAS achieved a clinical outcome that was non-inferior to EES at 12-month follow-up.

Publication types

  • Comparative Study
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acute Coronary Syndrome / therapy*
  • Adult
  • Aged
  • Angioplasty, Balloon, Coronary* / adverse effects
  • Drug-Eluting Stents* / adverse effects
  • Everolimus
  • Female
  • Humans
  • Male
  • Middle Aged
  • Platelet Aggregation Inhibitors / therapeutic use
  • Prospective Studies
  • Sirolimus / administration & dosage
  • Sirolimus / analogs & derivatives*
  • Stents* / adverse effects
  • Titanium / administration & dosage*


  • Platelet Aggregation Inhibitors
  • titanium-nitride-oxide
  • Everolimus
  • Titanium
  • Sirolimus