Coronary disease & ACSRandomised controlled trial

Biodegradable polymer sirolimus-eluting or durable polymer zotarolimus-eluting stents in high bleeding-risk patients with acute coronary syndrome: the BIOFLOW-DAPT randomized trial

Eur Heart J Acute Cardiovasc CarePublished

  • randomized control trial (RCT)
  • per-protocol population

Authors' conclusion

HBR patients with ACS are at higher risk of cardiac death than those without ACS and experience a consistent outcome with BP-SES or DP-ZES followed by 1 month DAPT at 1 year follow-up.

Study context

Population
High bleeding risk (HBR) patients with or without acute coronary syndrome (ACS) undergoing percutaneous coronary intervention (PCI), randomized to BP-SES or durable polymer zotarolimus-eluting stent (DP-ZES) and undergoing 1 month dual antiplatelet therapy (DAPT)per-protocol population of the BIOFLOW-DAPT RCT · with ACS 541 · without ACS 1,245
Comparison
HBR patients with or without ACS after BP-SES or DP-ZES implantation
  • ACSn = 541
  • no ACSn = 1,245

Primary result

As reported in the abstract

TLF (composite of cardiac death, target vessel myocardial infarction (TV-MI), or clinically driven target lesion revascularization (cd-TLR)) · 1 year

P = 0.992

Secondary outcomes

%

OutcomeACSno ACSBP-SESDP-ZESP value
Cardiac death · 1 year · higher with ACS3.41.3Not reported in the abstractNot reported in the abstractlog-rank P = 0.004
TV-MI · 1 year · similar2.84.5Not reported in the abstractNot reported in the abstractP = 0.100
cd-TLR · 1 year · similar1.42.1Not reported in the abstractNot reported in the abstractP = 0.300

Target lesion failure (TLF) and all secondary endpoints by stent across ACS strata

consistent with BP-SES or DP-ZES across ACS strata

Safety

%

OutcomeACSno ACSBP-SESDP-ZESP value
Major bleeding (BARC 3 or 5) · 1 year · similar · primary safety endpoint4.23.1Not reported in the abstractNot reported in the abstractP = 0.266
Definite/probable ST · 1 year · similar · primary safety endpoint0.20.9Not reported in the abstractNot reported in the abstractP = 0.098

Original publication

Biodegradable polymer sirolimus-eluting or durable polymer zotarolimus-eluting stents in high bleeding-risk patients with acute coronary syndrome: the BIOFLOW-DAPT randomized trial. Eur Heart J Acute Cardiovasc Care. Published 5 August 2026. doi:10.1093/ehjacc/zuag089

Summarised from the published abstract; every number is checked against it