Clinical Trial

Duration of Cardiac Antimicrobial Prophylaxis Outcomes Study

Study acronym: CALIPSO
Recruiting Phase 4
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Summary
This multicentre, adaptive, pragmatic, double-blind, three-arm, placebo-controlled, randomised, non-inferiority clinical trial will compare the incidence of surgical site infection and other healthcare associated infections, health economic and microbiological impact after intraoperative only (Arm A), to 24 hours (Arm B) and, to 48 hours (Arm C) of IV cefazolin and placebo postoperative surgical antimicrobial prophylaxis in patients undergoing cardiac surgery
Protocol Amendment History 4 amendments
This ClinicalTrials.gov record has been amended 4 times since 2022-07-05; most recent amendment 2026-03-22.
Status change: Not Yet Recruiting → Recruiting 2023-03-13
Trial Details
NCT Number NCT05447559
Lead Sponsor Monash University
Collaborators: ANZCA CTN
Conditions Surgical Site Infection
Enrollment 9,180 participants
Start Date 2023-02-07
Primary Completion 2027-12 (estimated)
Study Completion 2028-06 (estimated)
Updated on ClinicalTrials.gov 2026-03-25