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Ann Intern Med. 1998 Jan 1;128(1):21-8.

Famciclovir for the suppression of symptomatic and asymptomatic herpes simplex virus reactivation in HIV-infected persons. A double-blind, placebo-controlled trial.

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  • 1University of Washington, Seattle, USA.

Abstract

BACKGROUND:

Herpes simplex virus (HSV) infection is one of the most common opportunistic infections in HIV-infected persons. However, most documentation of the effectiveness of antiviral therapy in reducing HSV reactivation is anecdotal.

OBJECTIVE:

To evaluate the quantitative effect of antiviral therapy on the frequency of HSV reactivation in HIV-infected persons.

DESIGN:

Double-blind, placebo-controlled, crossover trial.

SETTING:

Research clinic at a university hospital.

PATIENTS:

48 persons (45 men and 3 women) who were HIV positive and HSV seropositive.

INTERVENTION:

Patients were randomly assigned to receive famciclovir, 500 mg orally twice daily, or placebo for 8 weeks. They then crossed over to receive the other regimen after a 1-week washout period.

MEASUREMENTS:

Patients obtained daily cultures of their perirectal, urethral, oral, and genital areas and kept dairy records of signs and symptoms of genital and oral-labial herpes.

RESULTS:

The median CD4 cell count at study entry was 384 cells/mm3. In the intention-to-treat analysis of the first study period, HSV was isolated on 122 of 1114 (11%) placebo days compared with 9 of 1071 (1%) famciclovir days (relative risk, 0.15; P < 0.001). For patients who completed the crossover, the median difference in days with symptoms between placebo and famciclovir was 13.8% of days and the median difference in days on which HSV was isolated was 5.4% of days (P < 0.001 for both). Percentage of days with HSV-2 shedding was reduced from 9.7% to 1.3%. Breakthrough reactivations that occurred while patients were receiving famciclovir were infrequent, short, and often asymptomatic, HSV-2 isolates from these reactivations were susceptible to penciclovir in vitro.

CONCLUSIONS:

Antiviral chemotherapy with famciclovir results in clinically and statistically significant reductions in the symptoms associated with HSV infection and the symptomatic and asymptomatic shedding of HSV among HIV-positive persons.

PMID:
9424977
[PubMed - indexed for MEDLINE]
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