The objective of the BIOSTEMI ES study is to assess the long-term clinical outcomes with the Orsiro ultrathin-strut biodegradable polymer sirolimus-eluting stent compared to the Xience thin-strut durable polymer everolimus-eluting stent up to 5 years of follow-up among patients with STEMI undergoing primary PCI, enrolled in the BIOSTEMI trial.~In the BIOSTEMI randomized controlled clinical trial, the Orsiro ultrathin-strut bio degradable polymer sirolimus-eluting stent was found superior to the best-in-class Xience thin-strut durable polymer everolimus-eluting stent with respect to target lesion failure at one-year follow-up among patients with STEMI undergoing primary PCI (Iglesias JF, et al., Lancet 2019). The difference was driven by a lower risk of clinically indicated target lesion revascularization with the Orsiro ultrathin-strut biodegradable polymer sirolimus-eluting stent compared to the Xience thin-strut durable polymer everolimus-eluting stent.~Importantly, the difference between Orsiro stent and Xience stent accrues over time between one and two years of follow-up.~As per study protocol, the planned follow-up of patients included in the BIOSTEMI randomized controlled trial was 2 years.~The long-term clinical benefits the Orsiro ultrathin-strut biodegradable polymer sirolimus-eluting stent over the Xience thin-strut durable polymer everolimus-eluting stent beyond the polymer degradation period remain uncertain.
The objective of the BIOSTEMI ES study is to assess the long-term clinical outcomes with the Orsiro ultrathin-strut biodegradable polymer sirolimus-eluting stent compared to the Xience thin-strut durable polymer everolimus-eluting stent up to 5 years of follow-up among patients with STEMI undergoing primary PCI, enrolled in the BIOSTEMI trial.