RT Journal Article SR Electronic T1 Oral curcumin in elective abdominal aortic aneurysm repair: a multicentre randomized controlled trial JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1273 OP E1280 DO 10.1503/cmaj.180510 VO 190 IS 43 A1 Amit X. Garg A1 P.J. Devereaux A1 Andrew Hill A1 Manish Sood A1 Bharat Aggarwal A1 Luc Dubois A1 Swapnil Hiremath A1 Randolph Guzman A1 Vikram Iyer A1 Matthew James A1 Eric McArthur A1 Louise Moist A1 George Ouellet A1 Chirag R. Parikh A1 Virginia Schumann A1 Sumit Sharan A1 Heather Thiessen-Philbrook A1 Sheldon Tobe A1 Ron Wald A1 Michael Walsh A1 Matthew Weir A1 Neesh Pannu A1 Curcumin AAA AKI Investigators YR 2018 UL http://www.cmaj.ca/content/190/43/E1273.abstract AB BACKGROUND: Curcumin, a popular herbal supplement from the plant turmeric, has prevented ischemic reperfusion and toxin-induced injury in many animal studies and a single-centre randomized human trial. We sought to test whether perioperative oral curcumin (compared with placebo) affects the inflammatory response and risk of postrepair complications after elective abdominal aortic aneurysm repair in humans.METHODS: We conducted a parallel-group, randomized, placebo-controlled trial of patients from 10 hospitals in Canada who were scheduled to undergo elective repair of an unruptured abdominal aortic aneurysm (November 2011 to November 2014). Patients in the treatment group received perioperative oral curcumin (2000-mg doses 8 times over 4 d). Patients, health care providers and local research staff were unaware of the treatment assignment. The primary outcomes were median concentrations of 4 bio markers indicating injury and inflammation (postoperative urine interleukin-18 and perioperative rise in serum creatinine, plasma N-terminal pro–B-type natriuretic peptide and plasma high-sensitivity C-reactive protein).RESULTS: Baseline characteristics were similar in the 2 groups (606 patients overall; median age 76 yr). More than 85% of patients in each group took more than 80% of their scheduled capsules. Neither curcumin nor placebo significantly affected any of the 4 biomarkers (p > 0.05 for all comparisons). Regarding the secondary outcomes, there was a higher risk of acute kidney injury with curcumin than with placebo (17% v. 10%, p = 0.01), but no between-group difference in the median length of hospital stay (5 v. 5 days, p > 0.9) or the risk of clinical events (9% v. 9%, p = 0.9).INTERPRETATION: Curcumin had no beneficial effects when used in elective abdominal aortic aneurysm repair. These findings emphasize the importance of testing turmeric and curcumin before espousing their health benefits, as is currently done in the popular media.Trial registration: ClinicalTrials.gov, no. NCT01225094.See related article at www.cmaj.ca/lookup/doi/10.1503/cmaj.181358