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Evaluation of Diagnostic HIV Ag/Ab Combo Assay

Evaluation of ARCHITECT HIV Ag/Ab Combo Assay

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT00933933
Enrollment
635
Registered
2009-07-07
Start date
2009-06-30
Completion date
2009-11-30
Last updated
2011-07-12

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Human Immunodeficiency Viruses

Brief summary

To test blood specimens using a new investigational test that detects antigen and antibody to human immunodeficiency virus (HIV). Results will be compared to an approved HIV antibody test and supplemental testing performed to determine HIV status.

Detailed description

All specimens collected under separate specimen collection protocols or obtained from specimen suppliers will be provided to the clinical sites performing the investigational HIV test. This includes 6252 specimens collected from normal healthy individuals (7B5-02-05Z01-01: Collection of Specimens Used in Abbott Laboratories In Vitro Diagnostic HIV and Hepatitis Assays Clinical Studies)and from specimen suppliers. 588 specimens from HIV-infected pediatric subjects and 448 pregnant females at risk for HIV infection collected under protocol (7B5-02-05Z01-02: Collection of Pediatric and Pregnant Female Specimens Used in the Abbott Laboratories In Vitro Diagnostic HIV Assay)and from specimen suppliers. All specimens were previously collected and frozen, except for a subset of 586 specimens from normal healthy population and 55 specimen from pregnant females at risk for HIV infection which were collected under separate specimen collection protocols and tested as fresh specimens during the study. In addition, 83 specimens that were HIV antigen positive, 1121 specimens that were HIV-1 antibody positive, 201 specimens that were HIV-2 antibody positive, and 1409 specimens from US at risk for HIV infection or from HIV-2 endemic area were all obtained from specimen suppliers, except for 11 pediatric specimens collected under a separate protocol (7B5-02-05Z01-02: Collection of Pediatric and Pregnant Female Specimens Used in the Abbott Laboratories In Vitro Diagnostic HIV Assay).

Interventions

DEVICEARCHITECT HIV Ag/Ab Combo

Test blood samples with investigational HIV assay. If results for specimens from the normal healthy population or pregnant female population at risk for HIV infection are reactive, samples will be tested with supplemental HIV assays. If all supplemental HIV assays are negative, subject will be asked to return for a follow-up blood draw.

Sponsors

Abbott Diagnostics Division
Lead SponsorINDUSTRY

Study design

Allocation
NON_RANDOMIZED
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Healthy volunteers
Yes

Inclusion criteria

Normal Healthy Population: Inclusion Criteria: * Apparently healthy individual at the time of enrollment as affirmed by the subject

Exclusion criteria

* HIV infection as affirmed by the subject Pregnant Female Population at Risk for HIV Infection: Inclusion Criteria: * Subject is a pregnant female * Subject has risk factor for HIV infection

Design outcomes

Primary

MeasureTime frameDescription
Architect HIV Combo Test Data for Clinical Specificity in Population at Low Risk for HIV Infection3 monthsHIV status was determined by the results of the HIV comparator assay, HIV-1 Western blot, HIV-2 Western blot, and HIV-1 ribonucleic acid (RNA) test.
Architect HIV Combo Test Data for Clinical Sensitivity in HIV Positive Specimens3 monthsPositive HIV status was determined by the results of the HIV-1 Western blot, HIV-2 Western blot, and/or HIV-1 ribonucleic acid (RNA) test.
Architect HIV Combo Test Data for Specificity and Sensitivity in Pregnant Female Population3 monthsHIV status was determined by the results of the HIV comparator assay, HIV-1 Western blot, HIV-2 Western blot, and HIV-1 ribonucleic acid (RNA) test.
Architect HIV Combo Test Data for Specificity and Sensitivity in Pediatric Population (From 2 up to 21 Years of Age)3 monthsHIV status was determined by the results of the HIV comparator assay, HIV-1 Western blot, HIV-2 Western blot, and HIV-1 ribonucleic acid (RNA) test.

Secondary

MeasureTime frameDescription
Architect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk Populations3 monthsReactivity was determined by the results of the Architect HIV Ag/Ab Combo assay and supplemental testing by HIV-1 Western blot, HIV-2 Western blot, and HIV-1 ribonucleic acid (RNA) test.

Countries

United States

Participant flow

Recruitment details

All specimens collected under separate collection protocols or obtained from specimen suppliers: human immunodeficiency virus (HIV) antigen positive samples, HIV-1 antibody positive, specimens collected from individuals at risk for HIV infection in the United States (US), HIV-2 antibody positive and specimens collected from HIV-2 endemic area.

Pre-assignment details

All subjects were assigned to one group. There was no pre-screening criteria for this study.

Participants by arm

ArmCount
Architect HIV Ag/Ab Combo Specificity
Specimens collected from apparently healthy individuals under a separate specimen collection protocol (7B5-02-05Z01-01) or obtained from specimen vendors and were tested with investigational HIV test.
6,252
Architect HIV Ag/Ab Combo HIV-1 Antigen Sensitivity
Specimens obtained from specimen vendors were tested with investigational HIV test.
83
Architect Ag/Ab Combo HIV-1 Antibody Sensitivity
Specimens collected from HIV-1 infected individuals under a separate specimen collection protocol (pediatric subjects 7B5-02-05Z01-02) or obtained from specimen vendors and were tested with investigational HIV test.
1,121
Architect HIV Ag/Ab Combo HIV-2 Antibody Sensitivity
Specimens obtained from specimen vendors were tested with investigational HIV test.
201
Architect HIV Ag/Ab Combo Reactivity
Specimens collected from individuals at increased risk for HIV infection under a separate specimen collection protocol (pregant females 7B5-02-05Z01-02) or obtained from specimen vendors and were tested with investigational HIV test.
1,409
Total9,066

Withdrawals & dropouts

PeriodReasonFG000FG001FG002
General Population From 16 to 89 YearsDid not meet criteria for analysis0200
Pregnant Females Between 16-44 YearsSpecimens classified incorrectly020

Baseline characteristics

CharacteristicTotalArchitect HIV Ag/Ab Combo SpecificityArchitect HIV Ag/Ab Combo HIV-1 Antigen SensitivityArchitect Ag/Ab Combo HIV-1 Antibody SensitivityArchitect HIV Ag/Ab Combo HIV-2 Antibody SensitivityArchitect HIV Ag/Ab Combo Reactivity
Age, Customized
>= 21 years
8024 participants5663 participants0 participants1057 participants0 participants1304 participants
Age, Customized
between 2 and 21 years
713 participants588 participants0 participants64 participants0 participants61 participants
Age, Customized
Not collected
329 participants1 participants83 participants0 participants201 participants44 participants
Region of Enrollment
Cameroon
1 Participants0 Participants1 Participants0 Participants0 Participants0 Participants
Region of Enrollment
Côte D'Ivoire
714 Participants0 Participants0 Participants0 Participants201 Participants513 Participants
Region of Enrollment
South Africa
4 Participants0 Participants4 Participants0 Participants0 Participants0 Participants
Region of Enrollment
United States
8347 Participants6252 Participants78 Participants1121 Participants0 Participants896 Participants
Sex/Gender, Customized
Female
4926 participants4165 participants0 participants231 participants0 participants530 participants
Sex/Gender, Customized
Male
3856 participants2087 participants0 participants890 participants0 participants879 participants
Sex/Gender, Customized
Not collected
284 participants0 participants83 participants0 participants201 participants0 participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
deaths
Total, all-cause mortality
— / —— / —— / —
other
Total, other adverse events
0 / 5860 / 00 / 55
serious
Total, serious adverse events
0 / 5860 / 00 / 55

Outcome results

Primary

Architect HIV Combo Test Data for Clinical Sensitivity in HIV Positive Specimens

Positive HIV status was determined by the results of the HIV-1 Western blot, HIV-2 Western blot, and/or HIV-1 ribonucleic acid (RNA) test.

Time frame: 3 months

Population: Sensitivity was determine using confirmed positive specimens/panels for HIV-1 Antigen (63 samples/panels/viral isolates), HIV-1 antibody (1003 US population) and HIV-2 antibody (201 endemic area of Ivory Coast) based on supplemental testing.

ArmMeasureGroupValue (NUMBER)
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Clinical Sensitivity in HIV Positive SpecimensARCHITECT HIV Ag/Ab Reactive63 Blood specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Clinical Sensitivity in HIV Positive SpecimensARCHITECT HIV Ag/Ab Nonreactive0 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Clinical Sensitivity in HIV Positive SpecimensARCHITECT HIV Ag/Ab Reactive1003 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Clinical Sensitivity in HIV Positive SpecimensARCHITECT HIV Ag/Ab Nonreactive0 Blood specimens
HIV-2 Antibody SensitivityArchitect HIV Combo Test Data for Clinical Sensitivity in HIV Positive SpecimensARCHITECT HIV Ag/Ab Reactive201 Blood specimens
HIV-2 Antibody SensitivityArchitect HIV Combo Test Data for Clinical Sensitivity in HIV Positive SpecimensARCHITECT HIV Ag/Ab Nonreactive0 Blood specimens
95% CI: [94.31, 100]Exact binomial
95% CI: [99.63, 100]Exact binomial
95% CI: [98.18, 100]Exact binomial
Primary

Architect HIV Combo Test Data for Clinical Specificity in Population at Low Risk for HIV Infection

HIV status was determined by the results of the HIV comparator assay, HIV-1 Western blot, HIV-2 Western blot, and HIV-1 ribonucleic acid (RNA) test.

Time frame: 3 months

Population: Specificity determined from 6,164 specimens from apparently healthy individuals (low risk): includes 250 specimens from pregnant females in first trimester and 580 specimens from low risk population prospectively collected and tested fresh during study. Total of 37 confirmed HIV positives by supplemental testing were excluded from analysis.

ArmMeasureGroupValue (NUMBER)
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Clinical Specificity in Population at Low Risk for HIV InfectionHIV Ag/Ab Combo Reactive, HIV status Positive37 Blood Specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Clinical Specificity in Population at Low Risk for HIV InfectionHIV Ag/Ab Combo Reactive, HIV status Negative14 Blood Specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Clinical Specificity in Population at Low Risk for HIV InfectionHIV Ag/Ab Combo Nonreactive HIV status Positive0 Blood Specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Clinical Specificity in Population at Low Risk for HIV InfectionHIV Ag/Ab Combo Nonreactive HIV status Negative6113 Blood Specimens
95% CI: [99.62, 99.88]Exact binomial
Primary

Architect HIV Combo Test Data for Specificity and Sensitivity in Pediatric Population (From 2 up to 21 Years of Age)

HIV status was determined by the results of the HIV comparator assay, HIV-1 Western blot, HIV-2 Western blot, and HIV-1 ribonucleic acid (RNA) test.

Time frame: 3 months

Population: Specificity determine from 588 specimens: 364 low risk, 95 increased risk, 47 increased risk (HIV-2 endemic area), 44 pregnant females low risk and 38 pregnant females increased risk with HIV negative status. Sensitivity determined from 65 specimens: 60 HIV-1 infected, 2 HIV-1 infected pregnant females, 2 HIV infected from HIV-2 endemic area.

ArmMeasureGroupValue (NUMBER)
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Specificity and Sensitivity in Pediatric Population (From 2 up to 21 Years of Age)HIV Ag/Ab Combo Reactive HIV Status Positive0 Blood specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Specificity and Sensitivity in Pediatric Population (From 2 up to 21 Years of Age)HIV Ag/Ab Combo Reactive HIV Status Negative1 Blood specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Specificity and Sensitivity in Pediatric Population (From 2 up to 21 Years of Age)HIV Ag/Ab Combo Nonreactive HIV Status Positive0 Blood specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Specificity and Sensitivity in Pediatric Population (From 2 up to 21 Years of Age)HIV Ag/Ab Combo Nonreactive HIV Status Negative587 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Specificity and Sensitivity in Pediatric Population (From 2 up to 21 Years of Age)HIV Ag/Ab Combo Nonreactive HIV Status Negative0 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Specificity and Sensitivity in Pediatric Population (From 2 up to 21 Years of Age)HIV Ag/Ab Combo Reactive HIV Status Positive64 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Specificity and Sensitivity in Pediatric Population (From 2 up to 21 Years of Age)HIV Ag/Ab Combo Nonreactive HIV Status Positive0 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Specificity and Sensitivity in Pediatric Population (From 2 up to 21 Years of Age)HIV Ag/Ab Combo Reactive HIV Status Negative0 Blood specimens
95% CI: [99.06, 100]Exact binomial
95% CI: [94.4, 100]Exact binomial
Primary

Architect HIV Combo Test Data for Specificity and Sensitivity in Pregnant Female Population

HIV status was determined by the results of the HIV comparator assay, HIV-1 Western blot, HIV-2 Western blot, and HIV-1 ribonucleic acid (RNA) test.

Time frame: 3 months

Population: HIV negative status determined for specimens reactive by investigational assay and/or comparator by supplemental testing algorithm including HIV-1 Western blot, HIV-2 enzyme immunoassay (EIA), HIV-2 Western blot, HIV-1 p24 Antigen assay and HIV-1 RNA. HIV positive status determined by HIV-1 Western blot. Specimens from pregnant females.

ArmMeasureGroupValue (NUMBER)
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Specificity and Sensitivity in Pregnant Female PopulationArchitect HIV Ag/Ab Reactive0 Blood specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Specificity and Sensitivity in Pregnant Female PopulationArchitect HIV Ag/Ab Nonreactive448 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Specificity and Sensitivity in Pregnant Female PopulationArchitect HIV Ag/Ab Reactive65 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Specificity and Sensitivity in Pregnant Female PopulationArchitect HIV Ag/Ab Nonreactive0 Blood specimens
95% CI: [99.18, 100]Exact binomial
95% CI: [94.48, 100]Exact binomial
Secondary

Architect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk Populations

Reactivity was determined by the results of the Architect HIV Ag/Ab Combo assay and supplemental testing by HIV-1 Western blot, HIV-2 Western blot, and HIV-1 ribonucleic acid (RNA) test.

Time frame: 3 months

Population: Final HIV status determined for specimens reactive by investigational assay and/or comparator by supplement testing algorithm. Supplemental testing involved HIV-1 Western blot, HIV-2 EIA, HIV-2 Western blot, HIV-1 p24 Antigen assay and HIV-1 RNA. HIV positive status determined by HIV-1 Western blot.

ArmMeasureGroupValue (NUMBER)
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Reactive HIV Status Positive65 Blood specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Reactive HIV Status Negative6 Blood specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Nonreactive - HIV Status Positive0 Blood specimens
Architect HIV Ag/Ab Specificity - Low Risk for HIV InfectionArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Nonreactive HIV Status Negative622 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Nonreactive HIV Status Negative424 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Reactive HIV Status Positive83 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Nonreactive - HIV Status Positive0 Blood specimens
HIV-1 Antibody SensitivityArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Reactive HIV Status Negative6 Blood specimens
HIV-2 Antibody SensitivityArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Nonreactive HIV Status Negative198 Blood specimens
HIV-2 Antibody SensitivityArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Reactive HIV Status Negative0 Blood specimens
HIV-2 Antibody SensitivityArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Nonreactive - HIV Status Positive0 Blood specimens
HIV-2 Antibody SensitivityArchitect HIV Combo Test Data for Reactivity of Architect HIV Combo in Increased HIV Risk PopulationsHIV Ag/Ab Combo Reactive HIV Status Positive5 Blood specimens

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026