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Randomized Controlled Trial Multicenter Study
Valganciclovir prophylaxis versus preemptive therapy in cytomegalovirus-positive renal allograft recipients: 1-year results of a randomized clinical trial.
- Oliver Witzke, Ingeborg A Hauser, Michael Bartels, Gunter Wolf, Heiner Wolters, Martin Nitschke, and VIPP Study Group.
- Department of Nephrology, University Duisburg-Essen, Essen, Germany. oliver.witzke@uk-essen.de
- Transplantation. 2012 Jan 15;93(1):61-8.
BackgroundCytomegalovirus (CMV) prevention can be achieved by prophylaxis or preemptive therapy. We performed a prospective randomized trial to determine whether renal transplant recipients with a positive CMV serostatus (R+) had a higher rate of CMV infection and disease after transplantation when treated preemptively for CMV infection, compared with primary valganciclovir prophylaxis.MethodsProphylaxis was 2 × 450 mg oral valganciclovir/day for 100 days; preemptive patients were monitored by CMV-polymerase chain reaction (PCR), and after a positive PCR test received 2 × 900 mg valganciclovir/day for at least 14 days followed by secondary prophylaxis. Valganciclovir dosage was adjusted according to renal function. Patients are followed up for 5 years and initial 12-month data are presented. Two hundred and ninety-six recipients were analyzed (168 donor/recipient seropositive [D+/R+], 128 donor seronegative/recipient seropositive [D-/R+]; 146 receiving prophylaxis and 150 preemptive therapy).ResultsOverall, CMV infection (asymptomatic CMV viral load ≥ 400 CMV DNA copies/mL proven by CMV-PCR) was significantly higher in recipients under preemptive therapy (38.7% vs. 11.0%, P<0.0001), with the highest incidence in D+/R+ preemptive patients (53.8% vs. 15.6%, P<0.0001). D+/R+ recipients with preemptive therapy also had the highest rate of CMV disease (CMV syndrome and tissue-invasive disease that was clinically diagnosed and biopsy proven) (19.2% vs. 4.4%, P=0.003). Renal function assessed by creatinine clearance was similar for both groups. Graft loss occurred in 7 vs. 4 patients on preemptive versus prophylactic therapy (P>0.05). Tolerability was similar for both treatment groups.ConclusionsOral valganciclovir prophylaxis significantly reduces CMV infection and disease, particularly for D+/R+ patients. Hence, our study supports routine prophylaxis for all D+/R+ recipients.
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