Serum HIV-1 p24 antibody, HIV-1 RNA copy number and CD4 lymphocyte percentage are independently associated with risk of mortality in HIV-1-infected children. National Institute of Child Health and Human Development Intravenous Immunoglobulin Clinical Trial Study Group.

Important note: Information in this article was accurate in 1999. The state of the art may have changed since the publication date.

AIDS. 1999 Jan 14;13(1):31-9. Unique Identifier : AIDSLINE MED/99223949
Mofenson LM; Harris DR; Rich K; Meyer WA 3rd; Read JS; Moye J Jr; Nugent RP; Korelitz J; Bethel J; Pahwa S; Pediatric, Adolescent and Maternal AIDS Branch, Center for; Research for Mothers and Children, National Institute of Child; Health and Human Development, National Institutes of Health,; Rockville, MD 20852, USA.

Abstract: OBJECTIVE: The role of HIV-1 antibody in modulating disease progression must be assessed in the context of other immune and viral load markers. We evaluated the association between HIV-1 p24 antibody, HIV-1 RNA, immune complex-dissociated (ICD) p24 antigen, CD4 cell percentage, and mortality in a cohort of 218 HIV-infected children enrolled in a trial of intravenous immunoglobulin prophylaxis of bacterial infections. METHODS: CD4 cell percentage was measured and sera collected and stored at baseline and every 3 months on study (1988-1991). Stored sera were assayed for HIV-1 p24 antibody, HIV-1 RNA, and ICD p24 antigen. Mortality was recorded during the trial and updated through 1996 (mean total follow-up, 6.3 years). RESULTS: Eighty-one (37%) children died; probability of mortality for children with baseline HIV-1 p24 antibody concentrations of undetectable (< 1), 1-4, 5-124, and > or = 125 reciprocal titer units (RTU) was 61, 50, 24, and 10%, respectively. A 3.5-fold increase in the relative risk (RR) of death [95% confidence interval (CI), 2.2-5.5] was observed among children with baseline HIV-1 p24 antibody concentration < 5 RTU compared with > or = 5 RTU. In multivariate analyses, p24 antibody, HIV-1 RNA, and CD4 cell percentage but not ICD p24 antigen were independently associated with mortality; the RR of death increased by 1.7 (95% CI, 1.3-2.1) for each log10 decrement in baseline HIV-1 p24 antibody. CONCLUSIONS: HIV-1 p24 antibody, HIV-1 RNA and CD4 cell percentage independently predict mortality amongst infected children. Whereas CD4 cell percentage provides an estimate of the general degree of immune suppression, HIV-1 p24 antibody could provide an easily obtained, inexpensive assessment of CD4 cell function and could augment prognostic information provided by CD4 cell count and viral load for clinical management of infected children.

Keywords: CLINICAL TRIAL JOURNAL ARTICLE RANDOMIZED CONTROLLED TRIAL Child Child, Preschool CD4 Lymphocyte Count Gene Dosage Human HIV Antibodies/BLOOD/*IMMUNOLOGY HIV Core Protein p24/*IMMUNOLOGY HIV Infections/BLOOD/*IMMUNOLOGY/*MORTALITY/VIROLOGY HIV-1/*IMMUNOLOGY Immunoglobulins, Intravenous/THERAPEUTIC USE Infant Risk Factors RNA, Viral Support, U.S. Gov't, P.H.S.
990930
A9991344

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