Prevention of Transplant Atherosclerosis With Everolimus and Anti-cytomegalovirus Therapy

Summary

Cardiac allograft vasculopathy (CAV) is the major cause of long-term graft failure in heart transplant recipients. Although several immune-mediated and metabolic risk factors have been implicated in the pathogenesis of CAV, no effective therapy is currently available to treat established CAV and prevent its adverse outcomes. Therefore, the main clinical strategy is based on prevention and treatment of factors known to trigger its development. Although the mechanism is vague, cytomegalovirus (CMV) infection is believed to play a key role in CAV progression. Two strategies involving administration of specific anti-CMV agents are recommended for prevention of CMV infection/disease: universal prophylaxis and preemptive therapy. The pros and cons of the two strategies are still debated, in the absence of randomized studies addressing graft-related outcomes and viral mechanisms of graft damage, and without any clear evidence of superiority of either approach. The investigators conceived this randomized prospective project to compare the effect of preemptive anti-CMV strategy with universal anti-CMV prophylaxis on CMV infection and on one-year increase in coronary intimal thickening. Patients will be additionally randomized to receive either mycophenolate mofetil or everolimus, in light of the possible anti-CMV properties of everolimus.

Timeline

Start

2009-04

Primary completion

2012-04

Completion

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Publications

• Background Potena L, Grigioni F, Magnani G, Lazzarotto T, Musuraca AC, Ortolani P, Coccolo F, Fallani F, Russo A, Branzi A. Prophylaxis versus preemptive anti-cytomegalovirus approach for prevention of allograft vasculopathy in heart transplant recipients. J Heart Lung Transplant. 2009 May;28(5):461-7. doi: 10.1016/j.healun.2009.02.009.
• Background Potena L, Valantine HA. Cytomegalovirus-associated allograft rejection in heart transplant patients. Curr Opin Infect Dis. 2007 Aug;20(4):425-31. doi: 10.1097/QCO.0b013e328259c33b.
• Background Hill JA, Hummel M, Starling RC, Kobashigawa JA, Perrone SV, Arizon JM, Simonsen S, Abeywickrama KH, Bara C. A lower incidence of cytomegalovirus infection in de novo heart transplant recipients randomized to everolimus. Transplantation. 2007 Dec 15;84(11):1436-42. doi: 10.1097/01.tp.0000290686.68910.bd.
• Vernooij RW, Michael M, Colombijn JM, Owers DS, Webster AC, Strippoli GF, Hodson EM. Pre-emptive treatment for cytomegalovirus viraemia to prevent cytomegalovirus disease in solid organ transplant recipients. Cochrane Database Syst Rev. 2025 Jan 14;1(1):CD005133. doi: 10.1002/14651858.CD005133.pub4.
• Vernooij RW, Michael M, Ladhani M, Webster AC, Strippoli GF, Craig JC, Hodson EM. Antiviral medications for preventing cytomegalovirus disease in solid organ transplant recipients. Cochrane Database Syst Rev. 2024 May 3;5(5):CD003774. doi: 10.1002/14651858.CD003774.pub5.

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