TITLE

Effect of Valacyclovir on Viral Shedding in Immunocompetent Patients With Recurrent Herpes Simplex Virus 2 Genital Herpes: A US-Based Randomized, Double-Blind, Placebo-Controlled Clinical Trial

AUTHOR(S)
Fife, Kenneth H.; Warren, Terri J.; Ferrera, R. David; Young, Douglas G.; Justus, Scott E.; Heitman, Catherine K.; Burroughs, Scott M.
PUB. DATE
October 2006
SOURCE
Mayo Clinic Proceedings;Oct2006, Vol. 81 Issue 10, p1321
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
OBJECTIVE: To determine the efficacy of daily suppressive therapy with a l-g dose of valacyclovir in reducing total (clinical and sub-clinical) herpes simplex virus 2 (HSV-2) shedding compared with placebo in immunocompetent patients diagnosed as having recurrent HSV-2 genital herpes. PATIENTS AND METHODS: From June 18, 2004, to December 17, 2004, patients from 27 US sites with a history of 6 or more genital herpes recurrences per year were randomized in a 3:1 ratio to receive 1 g/d of valacyclovir or placebo. During the double-blind suppressive therapy, patients were provided with the study drug (500-mg valacyclovir caplets or matching placebo) and instructed to take 2 caplets once daily without regard to meals for 60 days. Daily genital and anal or rectal swabs were self-collected during the 60-day study period for evaluation of HSV-2 viral shedding as determined by quantitative type-specific polymerase chain reaction assay. RESULTS: One hundred fifty-two patients were randomized into this study, 43 to placebo and 109 to 1 g/d of valacyclovir. A total of 134 completed the study (40 placebo [93%], 94 valacyclovir [86%]), and 18 prematurely withdrew (3 placebo [7%], 15 valacyclovir [14%]). Valacyclovir significantly reduced the percentage of days with total (clinical and subclinical) HSV-2 shedding throughout 60 days compared with placebo, in the, intent-to-treat population, a 71% reduction in total shedding (P<.001), a 58% reduction in subclinical shedding (P<.001), and a 64% reduction in clinical shedding (P=.01) were observed. Valacyclovir was not associated with any significant toxic effects compared with placebo. CONCLUSION: This study demonstrated that 1 g/d of valacyclovir administered for 60 days was generally well tolerated and was an effective suppressive therapy that significantly reduced total (clinical and subclinical) HSV-2 shedding compared with placebo in immunocompetent patients diagnosed as having recurrent HSV-2 genital herpes.
ACCESSION #
23272664

 

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