Aortic & peripheral vascular diseaseRandomised controlled trial

Sirolimus-Coated Balloon Angioplasty for Infrainguinal Artery Disease

N Engl J MedPublished

  • Randomised controlled trial
  • open-label
  • noninferiority
  • prespecified sequential testing for superiority
  • blinded outcome adjudication

Authors' conclusion

Among patients with infrainguinal artery disease undergoing endovascular treatment, angioplasty with sirolimus-coated balloons led to a lower incidence of major adverse limb events at 1 year than angioplasty with uncoated balloons.

Study context

Population
Patients with infrainguinal artery disease undergoing endovascular treatment
Participants
1,252 patients
Comparison
Sirolimus-coated balloon vs uncoated balloon angioplasty
  • Sirolimus-coated balloonn = 626
  • Uncoated balloonn = 626reference
Primary endpoint
Unplanned major amputation of the target limb or endovascular/surgical revascularization of the target lesion for critical limb ischemia
Follow-up
1 year after randomization

Primary result

As reported in the abstract

Median unbiased estimate of risk difference

−4.9 percentage points

95% CI −8.5 to −1.3

P < 0.001 for noninferiority; P = 0.009 for superiority

Events by treatment group

Sirolimus-coated balloon vs Uncoated balloon
median unbiased estimate of risk difference −4.9 percentage points (95% CI −8.5 to −1.3); P < 0.001 for noninferiority; P = 0.009 for superiority

Secondary outcomes

OutcomeSirolimus-coated balloonUncoated balloonrisk difference (percentage points) (95% CI)P value
Key secondary: any unplanned amputation of target limb or target-lesion revascularization for critical or noncritical limb ischemia · 1 year23.0%30.8%−7.8 (−12.7 to −2.9)P = 0.002
All-cause death (primary safety outcome) · 1 year11.8%12.8%−1.0 (−4.6 to 2.7)P = 0.67

Safety

Adverse events

Incidence appeared similar in the two groups

Original publication

Sirolimus-Coated Balloon Angioplasty for Infrainguinal Artery Disease. N Engl J Med. Published 30 March 2026. doi:10.1056/nejmoa2600360

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