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Infection, Human Immunodeficiency VirusPhase 1NCT03368053

Long-term Immunogenicity of the HIV gp120-NefTat/AS01B Vaccine (GSK SB732461)

A Phase 1 study testing Blood sampling in people with Infection, Human Immunodeficiency Virus and HIV Infections, run by GlaxoSmithKline at 1 site in Belgium.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate the long-term persistence of binding antibody responses against V1V2 and gp120 in subjects who were vaccinated with the envelope glycoprotein 120 (gp120)-negative factor (Nef)Tat/ Adjuvant System 01B (AS01B) (GSKSB732461) vaccine candidate. Read more about this study

Who is it for?
Ages 30 to 65 yearsHealthy volunteers can take part
What is being tested?
Blood sampling
Type of treatment
Vaccines, Surgery or procedure
Could I receive a placebo?
No, everyone receives an active treatment
How many people
36 participants
Where
1 siteBelgium
Study dates
14 Dec 2017to 30 Jan 2018
Phase
Phase 1
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 30 to 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • Subjects who, in the opinion of the investigator, can and will comply with the requirements of the protocol.
  • Written informed consent obtained from the subject prior to performing any study specific procedure.
  • A subject who has received at least 3 doses of the gp120-NefTat/AS01B (GSKSB732461) vaccine candidate in GSK Biologicals-sponsored PRO HIV-002 study.

Who cannot join

  • Use of any investigational or non-registered product during 30 days prior to study enrolment.
  • History of HIV-1 or HIV-2 infection.
  • Participation to another clinical trial of an investigational HIV vaccine between study PRO HIV-002 and the present study.
  • Chronic administration of immunosuppressants or other immune-modifying drugs during the period starting one month preceding this study. For corticosteroids, this will mean prednisone higher than or equal to (≥) 20 mg/day . Inhaled and topical steroids are allowed.
  • Administration of cytotoxic medication within 6 months preceding this study.
  • History of daily, long-term immunosuppressive medication between study PRO HIV-002 and the present study.
Show all 9Show fewer
  • Administration of immunoglobulins and/or any blood products during the period starting 3 months before enrolment.
  • Any confirmed or suspected immunosuppressive or immunodeficient condition other than HIV disease, based on medical history and physical examination between study PRO HIV-002 and the present study.
  • Past administration of an investigational vaccine containing AS01 other than the gp120-NefTat/AS01B (GSKSB732461) vaccine administered in PRO HIV-002 study.

Trial locations and contacts

1 site in 1 country.

Belgium1 site
  • GSK Investigational Site

    Ghent, 9000

Other trials in Belgium

About this study

The purpose of this study is to evaluate the long-term persistence of binding antibody responses against V1V2 and gp120 in subjects who were vaccinated with the envelope glycoprotein 120 (gp120)-negative factor (Nef)Tat/ Adjuvant System 01B (AS01B) (GSKSB732461) vaccine candidate. Other immune parameters like the HIV-specific cluster of differentiation (CD4+) T cell and CD8+ T cell responses will also be evaluated.

Read the detailed description

GlaxoSmithKline (GSK) contributes to the public-private pox-protein partnership (P5) which is currently assessing the safety, immunogenicity and clinical efficacy of a prime-boost regimen aimed at preventing HIV transmission (http://www.hvtn.org/en.html). The booster component of the candidate vaccine used in this program consists of two gp120 clade C proteins administered with an adjuvant. In order to inform the selection of the adjuvant in future studies, data on long-term persistence of immunity after vaccination with gp120/AS01 would prove useful. The present study was designed to address this question using a cohort of volunteers vaccinated several years ago with a candidate vaccine containing gp120 and AS01.

Being tested
Blood sampling
Keywords
gp120, HIV infections, RV144, gp120-NefTat/AS01B vaccine candidate, V1V2
Medical subject headings
Infections, Acquired Immunodeficiency Syndrome, HIV Infections

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Blood samplingProcedure or surgery

    Blood samples will be taken during the single study visit at Year 14 for the assessment of: HIV testing, antibody determination, cell mediated immune (CMI) responses and exploratory characterisation.

Study groups in NCT03368053
Study groupRoleWhat they receive
GSKSB732461 GroupExperimentalHealthy HIV uninfected volunteers who participated in study PRO HIV-002 between February 2003 and February 2005 and who were vaccinated with at least 3 doses of the GSKSB732461 vaccine candidate in the PRO-HIV-002 study.
Receives: Procedure: Blood sampling

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Subjects With Anti-V1V2 Total Immunoglobulin G (IgG) Binding Antibody Multiplex Assay (BAMA) Response Call

    To comply with BAMA methodology and terminology, the wording "BAMA response call status" was used instead of "seropositivity" in the analysis. Compared to baseline result (Day 0), a sample is called "positive" for a given analyte if the response magnitude is equal to or above (≥) the analyte specific cutoff from all baseline samples in the study (where the cutoff is the 95th percentile of the baseline response, or 100, whichever is higher) OR ≥3 times the response magnitude as compared to the sample specific baseline. The C.1086C_V1_V2 Tags strain was not part of any breadth panel. Due to low or infrequent response, or undetectable levels of response among the breadth panel strains, some additional strains, not part of the breadth panels, were also analyzed.

    Measured: At Day 182, Day 672 historical time points of PRO-HIV-002 and at Year 14

  2. Anti-V1V2 Total IgG Antibody BAMA Response Magnitude

    Whenever results were provided as "Mean Fluorescence Intensity (MFI)", the statistical outputs "BAMA response magnitude (MFI)" terminology is used instead of "concentrations/titres". The C.1086C_V1_V2 Tags strain was not part of any breadth panel. Due to low or infrequent response, or undetectable levels of response among the breadth panel strains, some additional strains, not part of the breadth panels, were also analyzed.

    Measured: At Day 0, Day 182, Day 672 historical time points of PRO-HIV-002 and at Year 14

  3. Number of Subjects With Anti-V1V2 Subtypes Range: IgG1, IgG2, IgG3 and IgG4 Response Call

    To comply with BAMA methodology and terminology, the wording "BAMA response call status" was used instead of "seropositivity" in the analysis. Compared to baseline result (Day 0), a sample is called "positive" for a given analyte if the response magnitude is equal to or above (≥) the analyte specific cutoff from all baseline samples in the study (where the cutoff is the 95th percentile of the baseline response, or 100, whichever is higher) OR ≥3 times the response magnitude as compared to the sample specific baseline. Antigen IgG3 was assessed for all strains. Antigens IgG1, IgG2 and IgG4 were assessed only for C.1086C_V1_V2 Tags strain that was not part of any breadth panel. Due to low or infrequent response, or undetectable levels of response among the breadth panel strains, some additional strains, not part of the breadth panels, were also analyzed.

    Measured: At Day 182, Day 672 historical time point of PRO-HIV-002 and at Year 14

  4. Anti-V1V2 IgG1, IgG2, IgG3 and IgG4 Antibody BAMA Response Magnitude

    Whenever results were provided as "Mean Fluorescence Intensity (MFI)", the statistical outputs "BAMA response magnitude (MFI)" terminology is used instead of "concentrations/titres". Antigen IgG3 was assessed for all strains. Antigens IgG1, IgG2 and IgG4 were assessed only for C.1086C_V1_V2 Tags strain that was not part of any breadth panel. Due to low or infrequent response, or undetectable levels of response among the breadth panel strains, some additional strains, not part of the breadth panels, were also analyzed.

    Measured: At Day 0, Day 182, Day 672 historical time points of PRO-HIV-002 and at Year 14

Secondary outcomes (8)
  1. Number of Subjects With Anti-envelope Glycoprotein (Anti-gp) 120 Total IgG BAMA Response Call

    To comply with BAMA methodology and terminology, the wording "BAMA response call status" was used instead of "seropositivity" in the analysis. Compared to baseline result (Day 0), a sample is called "positive" for a given analyte if the response magnitude is equal to or above (≥) the analyte specific cutoff from all baseline samples in the study (where the cutoff is the 95th percentile of the baseline response, or 100, whichever is higher) OR ≥3 times the response magnitude as compared to the sample specific baseline. The strains: 086C_D7gp120.avi/293F IgG, Con 6 gp120/B IgG, and gp120 (Clone W6.1D) IgG were not part of any breadth panel. Due to low or infrequent response, or undetectable levels of response among the breadth panel strains, some additional strains, not part of the breadth panels, were also analyzed.

    Measured: At Day 182, Day 672 historical time points of PRO-HIV-002 and at Year 14

  2. Anti-gp 120 Total IgG Antibody BAMA Response Magnitude

    Whenever results were provided as "Mean Fluorescence Intensity (MFI)", the statistical outputs "BAMA response magnitude (MFI)" terminology is used instead of "concentrations/titres". The strains: 086C_D7gp120.avi/293F IgG, Con 6 gp120/B IgG, and gp120 (Clone W6.1D) IgG were not part of any breadth panel. Due to low or infrequent response, or undetectable levels of response among the breadth panel strains, some additional strains, not part of the breadth panels, were also analyzed.

    Measured: At Day 0, Day 182, Day 672 historical time points of PRO-HIV-002 and at Year 14

  3. Number of Subjects With Anti-gp120 (IgG1, IgG2, IgG3 and IgG4) BAMA Response Call for Analytes Not Part of Any Breadth Panel

    To comply with BAMA methodology and terminology, the wording "BAMA response call status" was used instead of "seropositivity" in the analysis. Compared to baseline result (Day 0), a sample is called "positive" for a given analyte if the response magnitude is equal to or above (≥) the analyte specific cutoff from all baseline samples in the study (where the cutoff is the 95th percentile of the baseline response, or 100, whichever is higher) OR ≥3 times the response magnitude as compared to the sample specific baseline.Analysis was performed on the gp120 antigen (IgG1, IgG2, IgG3 and IgG4) for the following vaccine HIV strains which were not part of any breadth panel: 1086C_D7gp120.avi/293F IgG, Con 6 gp120/B IgG, and gp120 (Clone W6.1D) IgG. Due to low or infrequent response, or undetectable levels of response among the breadth panel strains, some additional strains, not part of the breadth panels, were also analyzed.

    Measured: At Day 182, Day 672 historical time points of PRO-HIV-002 and at Year 14

  4. Anti-gp120 (IgG1, IgG2, IgG3 and IgG4) BAMA Response Magnitude for Analytes Not Part of Any Breadth Panel

    Whenever results were provided as "Mean Fluorescence Intensity (MFI)", the statistical outputs "BAMA response magnitude (MFI)" terminology is used instead of "concentrations/titres". Analysis was performed on the gp120 antigen (IgG1, IgG2, IgG3 and IgG4) for the following vaccine HIV strains: which were not part of any breadth panel: 1086C_D7gp120.avi/293F IgG, Con 6 gp120/B IgG, and gp120 (Clone W6.1D) IgG. Due to low or infrequent response, or undetectable levels of response among the breadth panel strains, some additional strains, not part of the breadth panels, were also analyzed.

    Measured: At Day 0, Day 182, Day 672 historical time points of PRO-HIV-002 and at Year 14

  5. Frequency of Human Immunodeficiency Virus Type 1 (HIV-1) Specific Cluster of Differentiation-4 (CD4+) T Cells Expressing at Least 2 Cytokine Markers

    Assessed cytokines include: cluster of differentiation-40 lingand (CD40-L), Interleukin-2 (IL2), Tumour Necrosis Factor-alpha (TNF-α), Interferon-gamma (INF-γ), by Intracellular Cytokine Staining (ICS). CD4+ T-cells were expressed in CD4+ T-cells/million cells.

    Measured: At Day 0, Day 98, Day 672 historical time points of PRO-HIV-002 and at Year 14

  6. Number of Vaccine Responders for HIV-1-specific CD4+ T-cells Expressing at Least 2 Cytokine Markers

    Vaccine response rates for HIV-1-specific CD4+ T cells expressing at least two markers among CD40L, IL-2, TNF-α and IFN-γ with responders were defined as subjects with: a 2-fold increase as compared to the cut-off (=354, limit of quantification [LOQ] of the assay), for subjects with pre-vaccination frequency below the cut-off, at Day 0, OR at least 2-fold increase as compared to pre-vaccination frequency, for subjects with pre-vaccination frequency above the cut-off.

    Measured: At Day 98 and at Day 672 historical time points of PRO-HIV-002 and at Year 14

  7. Frequency of Human Immunodeficiency Virus Type 1 (HIV-1) Specific CD8+ T-cells Expressing at Least 2 Cytokine Markers

    Assessed cytokines include: CD40-L, IL2, TNF-α, INF-γ, by ICS. CD8+ T-cells were expressed in CD8+ T-cells/million cells/million cells.

    Measured: At Day 0, Day 98, Day 672 historical time points of PRO-HIV-002 and at Year 14

  8. Number of Vaccine Responders for HIV-1-specific CD8+ T-cells Expressing at Least 2 Cytokine Markers

    Vaccine response rates for HIV-1-specific CD8+ T cells expressing at least two markers among CD40L, IL-2, TNF-α and IFN-γ with responders were defined as subjects with: a 2-fold increase as compared to the cut-off (=354, limit of quantification [LOQ] of the assay), for subjects with pre-vaccination frequency below the cut-off, at Day 0, OR at least 2-fold increase as compared to pre- vaccination frequency, for subjects with pre-vaccination frequency above the cut-off.

    Measured: At Day 98, Day 672 historical time points of PRO-HIV-002 and at Year 14

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted11 Dec 2017
  2. Study start14 Dec 2017
  3. Primary completion30 Jan 2018
  4. Study completion30 Jan 2018

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1
Primary purpose
Basic science
Allocation
Not applicable
Intervention model
Single group
Model description
Descriptive mono-centric study with one single group.
Masking
None (open label)
Enrolment
36 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03368053
Sponsor's protocol ID
201606
Status last verified
Sep 2020
First submitted
5 Dec 2017
Last updated
20 Oct 2020
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
Yes: IPD for this study will be made available via the Clinical Study Data Request site.

Publications

  • Van Der Meeren O, Jongert E, Seaton KE, Koutsoukos M, Aerssens A, Brackett C, Debois M, Janssens M, Leroux-Roels G, Mesia Vela D, Sawant S, Yates NL, Tomaras GD, Leroux-Roels I, Roman F. Persistence of vaccine-elicited immune response up to 14 years post-HIV gp120-NefTat/AS01B vaccination. Vaccine. 2020 Feb 11;38(7):1678-1689. doi: 10.1016/j.vaccine.2019.12.058. Epub 2020 Jan 10.

    PubMed 31932137
  • Offoh PI, Azupogo F, Brouwer ID, Cazarin CBB. Baseline Diet Quality Indicators and Six-Month Changes in Iron and Vitamin A Biomarkers among Rural Ghanaian Adolescents: A Secondary Analysis of the Ten2Twenty-Ghana Trial. Am J Clin Nutr. 2026 Aug 18:101480. doi: 10.1016/j.ajcnut.2026.101480. Online ahead of print.

    PubMed 42612731

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing Blood sampling in people with Infection, Human Immunodeficiency Virus and HIV Infections, run by GlaxoSmithKline at 1 site in Belgium.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 9 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 20 Oct 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Belgium. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 18 Nov 2019). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Subjects With Anti-V1V2 Total Immunoglobulin G (IgG) Binding Antibody Multiplex Assay (BAMA) Response Call (time frame: At Day 182, Day 672 historical time points of PRO-HIV-002 and at Year 14). The study lists 4 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT03368053, which also lists 2 linked publications.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Oct 2020.

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