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1994-10-25
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Document 2738
DOCN M94A2738
TI Clinical evaluation of the Abbott HIV AG-1 monoclonal EIA with and
without immune complex disruption (ICD) on a panel of asymptomatic HIV-1
seropositive patients.
DT 9412
AU Cunningham PH; Carr AD; Nichols D; Penny R; Cooper DA; Centre for
Immunology, St. Vincent's Hospital, Sydney, Australia.
SO Int Conf AIDS. 1994 Aug 7-12;10(1):236 (abstract no. PB0372). Unique
Identifier : AIDSLINE ICA10/94369837
AB AIMS: To assess the performance of the HIV1 AG monoclonal antigen assay
with and without Immune Complex Disruption (ICD) for the detection of
HIV core antigen in serial serum samples collected from asymptomatic
HIV-1 infected individuals enrolled in a placebo (n = 106) vs
anti-retroviral (n = 103) controlled clinical trial. METHODS: A mean of
5 serial serum (n = 1076) samples collected from a total of 209 patients
were tested with monclonal HIV1 AG (Abbott, IL, USA) with and without
ICD. Data was compared to historical polyclonal HIV1 AG (Abbott, IL,
USA) results and detection limits of the two monoclonal procedures were
assessed. RESULTS: TABULAR DATA, SEE ABSTRACT VOLUME. 123/209 (58.9%)
patients had no specimen positive by any method. 19/209 (9.1%) of
patients had the first serial serum specimen tested positive by ICD
alone. 53/209 (25.3%) of patients had one or more specimens positive by
ICD and negative by the other methods. 20/53 (37.7%) of these patients
showed trends in p24 titre over time with ICD. CONCLUSION: The Abbott
HIV1 AG monoclonal ICD procedure facilitates the disruption of the
antibody-antigen complex allowing the p24 to become available for
detection by EIA. It is appears to permit earlier detection of HIV-1
antigen in individuals with progressive disease. Monoclonal detection of
HIV-1 antigen appears to be a sensitive and specific and easy to use
method suitable for routine measurement of circulating viral load.
DE Antigen-Antibody Complex/*IMMUNOLOGY Comparative Study Human HIV Core
Protein p24/*BLOOD HIV Seropositivity/*DIAGNOSIS/IMMUNOLOGY
HIV-1/*IMMUNOLOGY *Immunoenzyme Techniques Predictive Value of Tests
MEETING ABSTRACT
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).