Using Automated Carbon Dioxide Injection to Reduce Contrast Medium During Peripheral Vascular Interventions and Prevent Major Kidney Problems The PeriPREVENT Phase 3 Study

What this Trial Is About

Researchers are evaluating whether using an automated Carbon Dioxide CO2 injection system during infrainguinal peripheral vascular interventions PVI can reduce major adverse kidney events within 90 days in patients at moderately increased risk for contrast-associated acute kidney injury CA-AKI. This Phase 3 randomized controlled trial compares a CO2-based contrast medium sparing strategy to the standard use of iodinated contrast media in patients with peripheral vascular and kidney diseases. Participants are randomly assigned to one of two groups. The intervention group receives PVI using an automated CO2 injection system as the primary contrast agent, with iodinated contrast media available as a backup if image quality is insufficient or if the patient cannot tolerate CO2 angiography. The control group undergoes routine PVI using iodinated contrast media according to local standards, avoiding high-osmolar contrast agents. All patients are followed for up to 12 months after their procedure. During the study, participants undergo the planned PVI procedure with either contrast method. Researchers carefully record the amount and reasons for any iodinated contrast media used in the CO2 group. Patients are monitored for kidney-related outcomes, focusing on major adverse kidney events up to 90 days after the intervention. The trial includes ongoing follow-up assessments to evaluate safety and effectiveness over one year.

A Contrast Medium Sparing Strategy Using Automated CO2 Injection During PVI for Prevention of Major Adverse Kidney Events (MAKE)