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HIVNCT02012309

Mechanisms of Impaired HIV-associated B Cell and Pneumococcal Vaccine Responses

A study testing PCV-13 and PPSV-23 in people with HIV and Pneumococcal Infections, run by University of Colorado, Denver at 3 sites in United States.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Human Immunodeficiency Virus (HIV) infection is complicated by high rates of infections and cancers which are often the cause of death rather than the HIV/acquired immune deficiency syndrome (AIDS) virus itself. Read more about this study

Who is it for?
Ages 18 to 55 yearsHealthy volunteers can take part
What is being tested?
PCV-13 and PPSV-23
Type of treatment
Vaccines
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
3 sitesUnited States
Study dates
Aug 2014to Jun 2021
Phase
Interventional
Are there results?
None posted in the registry

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 18 to 55 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • For HIV-infected subjects:
  • adults aged 18-55 years
  • >200 CD4+ T-cells/microliter
  • no antiretroviral therapy (at the time of nasal swab/week 0)
  • receiving antiretroviral therapy for >6 weeks (at the time of vaccination/week 12)
  • For HIV-seronegative controls:
  • adults aged 18-55 years

Who cannot join

  • For all subjects:
  • age <18 or >55 years
  • history of prior pneumococcal vaccination
  • immunosuppressive therapy, defined as: prednisone >15mg/day currently or >14 days in the past 3 months, cytotoxic agents, anti-metabolites, cyclosporine, anti-tumor necrosis factor, B cell monoclonal antibodies
  • current or chronic pulmonary infection (bacterial, fungal, mycobacterial), pneumonia, or rhinosinusitis within 2 months
  • chronic lung disease
Show all 14Show fewer
  • renal insufficiency, defined as serum creatinine >1.6
  • active liver disease, including hepatitis C virus infection
  • history of splenectomy
  • history of antibacterial therapy within 3 months of nasal swab (week 0)
  • current alcohol abuse
  • chronic heart disease
  • diabetes
  • current cigarette smoking

Trial locations and contacts

3 sites in 1 country.

United States3 sites
  • University of Colorado-Denver

    Aurora, Colorado, 80045

  • Denver Health and Hospitals

    Denver, Colorado, 80204

  • Denver VA Medical Center

    Denver, Colorado, 80220

Other trials in United States

About this study

Human Immunodeficiency Virus (HIV) infection is complicated by high rates of infections and cancers which are often the cause of death rather than the HIV/acquired immune deficiency syndrome (AIDS) virus itself. Treatment of HIV with antiretroviral medications has decreased the frequency of many complications by over 90%, but bacterial pneumonia remains extremely high. Current vaccines are not very effective in preventing these infections in patients with HIV infection. The investigators are studying the cells (B cells) that make antibodies to fight infection by binding to and killing bacteria. The goal is to understand how HIV impairs the ability of B cells to make antibodies in sufficient quantity and of sufficient quality to protect patients with HIV to learn how to enhance protection against these infections. The investigators also seek to understand the role of the bacteria (specifically Streptococcus pneumoniae) that normally live in the nose and throat in the development of pneumonia and other infections.

Being tested
PCV-13, PPSV-23
Keywords
HIV, Streptococcus pneumoniae infection, Streptococcus pneumoniae colonization, Pneumococcal vaccines, Prevnar, Pneumovax, Nasopharyngeal microbiome
Medical subject headings
Pneumococcal Infections

What participants receive

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

  • PCV-13Biological

    Also called Prevnar

  • PPSV-23Biological

    Also called Pneumovax

Study groups in NCT02012309
Study groupRoleWhat they receive
HIV-seronegativeExperimentalHIV-seronegative subjects will receive Prevnar (PCV-13) at week 0.
Receives: Biological: PCV-13
HIV-infectedExperimentalHIV-infected subjects will receive Prevnar (PCV-13) at week 0, and Pneumovax (PPSV-23) at week 8 per Advisory Committee on Immunization Practices (ACIP) guidelines.
Receives: Biological: PCV-13; Biological: PPSV-23

What is being measured

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

  1. B and T cell subsets

    Activation and subset distribution of B and T cell subsets and cluster of differentiation positive (CD4+) T cells and T follicular helper (TFH) cells on days 0 and 7 after stimulation

    Measured: Weeks -12, 0, 1, 8, 9, 16

  2. Total IgG, IgM and IgA

    Total immunoglobulin G (IgG), immunoglobulin M (IgM) and immunoglobulin A (IgA) produced from culture of peripheral blood mononuclear cells (PBMC) stimulated in triplicate with B cell stimuli on day 7 by enzyme-linked immunosorbent assay (ELISA)

    Measured: Weeks -12, 0, 1, 8, 9, 16

  3. Antibody-secreting cells

    Total IgG, IgM and IgA antibody-secreting cells (ASC) enumerated by enzyme-linked immunospot (ELISPOT) on day 0 and day 7

    Measured: Weeks 0, 1, 8, 9

  4. AID and BCL-6 production

    RNA extraction for activation-induced cytidine deaminase (AID) and B cell lymphoma protein 6 (BCL6) expression and mutation from stimulated B cells

    Measured: Weeks -12, 0, 1, 8, 9, 16

Secondary outcomes (2)
  1. S.pneumoniae colonization and nasopharyngeal microbiome

    Prevalence of nasopharyngeal S. pneumoniae determined by quantitative polymerase chain reaction(Q-PCR) and 16S ribosomal RNA (rRNA) sequencing, related microbiota (commensal bacteria) and correlation between colonization and levels of pneumococcal capsule-specific IgG

    Measured: Weeks -12, 0, 8, 16

  2. S.pneumoniae urine antigen positivity

    1. pneumoniae urine antigen positivity in relation to colonization

    Measured: Week -12

Timeline

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

  1. First posted16 Dec 2013 (estimated)
  2. Study startAug 2014
  3. Primary completionJun 2021 (estimated)
  4. Study completionJun 2021 (estimated)

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 N/A
Primary purpose
Prevention
Allocation
Non-randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02012309
Sponsor's protocol ID
13-2405
Other IDs
R01AI108479
Status last verified
Nov 2020
First submitted
10 Dec 2013
Last updated
18 Nov 2020
Results posted
No
Data monitoring committee
Yes
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing PCV-13 and PPSV-23 in people with HIV and Pneumococcal Infections, run by University of Colorado, Denver at 3 sites in United States.

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 7 inclusion and 14 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: status not confirmed, as of the sponsor's last update on 18 Nov 2020. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 3 sites in United States. 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.

Are results available for this study?

Results are not available in the source record.

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?

B and T cell subsets (time frame: Weeks -12, 0, 1, 8, 9, 16). 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?
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 18 Nov 2020.

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