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J Acquir Immune Defic Syndr. 2008 Sep 1;49(1):77-83. doi: 10.1097/QAI.0b013e3181831832.

Suppressive acyclovir therapy reduces HIV cervicovaginal shedding in HIV- and HSV-2-infected women, Chiang Rai, Thailand.

Author information

  • 1National Center for HIV, Viral Hepatitis and STD Prevention, Centers for Disease Control and Prevention, Atlanta, GA, USA. dde9@cdc.gov

Abstract

BACKGROUND:

Herpes simplex virus type 2 infection is important in the HIV epidemic and may contribute to increased HIV transmission. We evaluated the effect of suppressive acyclovir therapy on cervicovaginal HIV-1 shedding.

METHODS:

HIV-1- and herpes simplex virus type 2-coinfected women aged 18-49 years with CD4 counts >200 cells/microL were enrolled in a randomized crossover trial of suppressive acyclovir therapy (NCT00362596, http://www.clinicaltrials.gov). For each woman, monthly plasma and weekly cervicovaginal lavage specimens were collected; the mean of the monthly median cervicovaginal lavage HIV-1 viral load and plasma HIV-1 viral load was compared.

RESULTS:

Sixty-seven women were enrolled; at baseline, median CD4 count was 366 cells/microL, and median HIV-1 plasma viral load was 4.6 log10 copies/mL. The mean cervicovaginal lavage HIV-1 viral load was 1.9 (SD 0.8) log10 copies/mL during the acyclovir month and 2.2 (SD 0.7) log10 copies/mL during the placebo month (P < 0.0001); the mean decrease in HIV was 0.3 log10 copies/mL. The mean plasma HIV viral load during the acyclovir month (3.78 log10 copies/mL) was reduced compared with the placebo month (4.26 log10 copies/mL, P < 0.001).

CONCLUSIONS:

Acyclovir reduced HIV genital shedding and plasma viral load among HIV-1- and herpes simplex virus type 2-coinfected women. Further data from clinical trials will examine the effect of suppressive therapy on HIV transmission.

PMID:
18667923
[PubMed - indexed for MEDLINE]
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