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Prospective comparison of valacyclovir and oral ganciclovir for prevention of cytomegalovirus disease in high-risk renal transplant recipients.

Author(s): Reischig T, Opatrny Jr K, Treska V, Mares J, Jindra P, Svecova M

Affiliation(s): Department of Internal Medicine I, Charles University School of Medicine and University Hospital, Pilsen, Czech Republic. reischig@fnplzen.cz

Publication date & source: 2005, Kidney Blood Press Res., 28(4):218-25. Epub 2005 Jul 21.

AIMS: To compare the efficacy, costs and safety of oral ganciclovir and valacyclovir in the prophylaxis of cytomegalovirus (CMV) disease in renal transplant (RTx) recipients at high risk of CMV disease. METHODS: A total of 83 patients were prospectively randomized to 3-month treatment with either oral ganciclovir (3 g/day) or oral valacyclovir (8 g/day). A 3rd group received no prophylaxis. Forty-nine patients were considered to be at high risk of CMV disease due to D+R- serologic status, OKT3/ATG treatment and/or acute rejection within 12 months after RTx. Twenty-three high-risk patients were treated with ganciclovir (GAN group), 17 patients with valacyclovir (VAL group), and 9 patients received no prophylaxis (C group). RESULTS: No significant differences were found among the groups in their demographic characteristics, immunosuppressive protocols, D/R CMV serology, or CMV risk factors. The 12-month incidence of CMV disease was 89% in the C group compared with 9% in the GAN group and 6% in the VAL group (p < 0.001, GAN or VAL vs. C; p = 0.713, GAN vs. VAL). Treatment failure (death, graft loss, CMV disease or withdrawal from study) occurred in 17, 6, and 89% in the GAN, VAL, and C groups, respectively (p < 0.001, GAN or VAL vs. C; p = 0.285, GAN vs. VAL). The average CMV-associated costs per patient were EUR 3,161, 3,757, and 7,247 in the GAN, VAL, and C groups, respectively (p = 0.027). CONCLUSION: Valacyclovir and oral ganciclovir are equally effective in the prophylaxis of CMV disease in high-risk RTx patients. Both regimens are cost-effective and help reduce CMV-associated costs by nearly 50% compared with patients without prophylaxis.

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