Effect of Evolocumab on Saphenous Vein Graft Patency
Following Coronary Artery Bypass Surgery
The NEWTON-CABG CardioLink-5 Trial

Principal Investigators
Subodh Verma
MD, PhD, FRCSC
C. David Mazer
MD, FRCPC
Steering Committee Chair
Lawrence A. Leiter
MD, FRCPC
Steering Committee Members
Deepak L. Bhatt
MD, MPH
Peter Jüni
MD, FESC
Michael J. Koren
MD
G. B. John Mancini
MD, FRCPC
Stephen J. Nicholls
MBBS, PhD, FRACP
Saphenous vein grafts (SVGs) are the most widely employed conduits for coronary artery bypass graft surgery (CABG) surgeries. However, SVG failure due to reduced patency (the ability for the vessel to remain an open conduit for blood flow) is a persistent and significant clinical problem, particularly in patients with diabetes. The advancement of coronary artery disease and diminishing SVG patency are strongly influenced by high low-density cholesterol (LDL-C) levels and accordingly, all major guidelines endorse aggressive LDL-C lowering in people who have or are at high risk of developing atherosclerotic cardiovascular disease. Evolocumab is a PCSK9 inhibitor that has been particularly useful in reducing LDL-C beyond the benefits of more traditional statin medications. NEWTON-CABG CardioLink-5 is a multicenter, global, double-blind, randomized, placebo-controlled, parallel group study evaluating the effect of evolocumab on SVG patency following CABG surgery. Enrollment has been completed and follow-ups are ongoing.
View details on ClinicalTrials.gov