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HIV InfectionsPhase 1/2NCT00100633

Safety of and Immune Response to a Hepatitis B Virus Vaccine Given With a Booster (CpG7909 ODN) in HIV Infected and HIV Uninfected People

A Phase 1/2 study testing CpG7909 oligodeoxynucleotides (ODN) and Hepatitis B virus vaccine in people with HIV Infections and Hepatitis B, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site in United States.

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 the study is to determine the safety of and immune response to a hepatitis B virus vaccine series given with a boosting agent, CpG7909 oligodeoxynucleotides (ODN), in HIV infected and HIV uninfected individuals who previously failed to develop a response to hepatitis B vaccine. Read more about this study

Who is it for?
Ages 18 to 65 yearsHealthy volunteers can take part
Conditions the study is for
HIV Infections, Hepatitis B
What is being tested?
CpG7909 oligodeoxynucleotides (ODN) and Hepatitis B virus vaccine
Type of treatment
Vaccines
How many people
30 participants
Where
1 siteUnited States
Study dates
Dec 2004to Oct 2007
Phase
Phase 1/2
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 65 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Who may be able to join

  • HIV-1 infection
  • If receiving combination antiretroviral therapy (ART), must have been on ART for at least 3 months prior to study entry. Patients who anticipate a change in treatment (either initiating ART or stopping ART) in the next 7 months are not eligible.
  • CD4 count of 250 cells/mm3 or greater
  • Negative HBsAb, HBsAg, and HBcAb
  • Willing to use acceptable forms of contraception while on study treatment and for 24 weeks after study treatment has ended
  • HIV uninfected
  • Negative HBsAb, HBsAg, and HBcAb
  • Willing to use acceptable forms of contraception while on study treatment and for 24 weeks after study treatment has ended

Who cannot join

  • Cancer. Participants with squamous cell or basal cell skin cancer are not excluded.
  • Autoimmune disease
  • Immunosuppressive medications. People who use or have used corticosteroid nasal sprays are not excluded. People who have received fewer than 2 weeks of systemic corticosteroids with the last dose over a month prior to study entry are not excluded.
  • Any medical or psychiatric condition or occupational responsibilities that may interfere with the study
  • Immunomodulator or investigational agent therapy within 30 days prior to study entry
  • Allergy/sensitivity to study drugs or their formulations, including thimerosal
Show all 11Show fewer
  • Current drug or alcohol use that, in the opinion of the investigator, would interfere with the study
  • Active hepatitis C virus infection, as indicated by serum antibodies to HCV AND detectable HCV RNA in plasma
  • Blood clotting abnormalities
  • Any other condition that, in the opinion of the investigator, might interfere with the study
  • Pregnancy or breastfeeding

Trial locations and contacts

1 site in 1 country.

United States1 site
  • University Hospitals of Cleveland

    Cleveland, Ohio, 44106

Other trials in United States

About this study

Official title: Immunologic Effects of CpG ODN Administration to HIV Uninfected and HIV Infected Patients

The purpose of the study is to determine the safety of and immune response to a hepatitis B virus vaccine series given with a boosting agent, CpG7909 oligodeoxynucleotides (ODN), in HIV infected and HIV uninfected individuals who previously failed to develop a response to hepatitis B vaccine.

Study hypothesis: Administration of CpG7909 ODN together with recombinant hepatitis B vaccine will result in increased frequency and magnitude of response to vaccine in individuals who have previously failed to mount a response to vaccination, and that in HIV infected subjects with detectable plasma viremia, it will lead to the enhancement of HIV-specific responses.

Read the detailed description

As HIV disease progresses in HIV infected people, their immune responses to infectious and other foreign invaders becomes weaker; in particular, the cellular (T-cell) immune response is particularly affected by HIV. A boosting agent called CpG7909 ODN may be an ideal adjuvant for vaccines given to HIV infected people, because it may help elicit an increased CD8 T-cell response. This study will evaluate the safety of and immune response to a hepatitis B virus vaccine series given with CpG7909 ODN in HIV infected and uninfected people.

There will be three groups in this study; participants will be stratified by baseline CD4 counts and viral load. Within each group, participants will be randomly assigned to receive 3 injections of hepatitis B vaccine with CpG7909 ODN or 3 injections of hepatitis B vaccine alone. Injections will be given at study entry and Months 1 and 6. There will be 10 study visits; a physical exam and blood collection will occur at each visit.

Being tested
CpG7909 oligodeoxynucleotides (ODN), Hepatitis B virus vaccine
Keywords
Hepatitis B Vaccine, Treatment Experienced, Treatment Naive
Medical subject headings
HIV Infections, Hepatitis B

What participants receive

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

  • CpG7909 oligodeoxynucleotides (ODN)Drug

  • Hepatitis B virus vaccineBiological

What is being measured

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

  1. Number of HIV peptides to which HIV infected patients respond using ELISPOT (CpG vs. no CpG in HIV infected participants)

  2. total number of CD8+ lymphocytes responding after HIV-peptide stimulation using ELISPOT (CpG vs. no CpG in HIV infected participants)

  3. safety

Secondary outcomes (8)
  1. Percentage of patients who develop protective hepatitis B (HB) antibody concentration (CpG vs. no CpG in HIV infected participants)

  2. percentage of patients who develop HB specific CD8+ lymphocyte responses using ELISPOT (CpG vs. no CpG in HIV infected participants)

  3. percentage of patients who develop HB specific CD8+ lymphocyte responses using ELISPOT (CpG vs. no CpG in all participants)

  4. percentage of patients who develop CD8+ lymphocyte proliferative responses as measured using CFSE (CpG vs. no CpG in HIV infected participants)

  5. percentage of patients who develop CD8+ lymphocyte proliferative responses as measured using CFSE (CpG vs. no CpG in all participants)

  6. expression of costimulatory molecules on B-cells in peripheral blood (CpG vs. no CpG in HIV infected participants)

  7. expression of costimulatory molecules on B-cells in peripheral blood (CpG recipients, HIV infected vs. uninfected participants)

  8. spontaneous IFN-gamma production in peripheral blood (CpG recipients, HIV infected vs. uninfected participants)

Timeline

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

  1. First posted5 Jan 2005 (estimated)
  2. Study startDec 2004
  3. Primary completionFeb 2007
  4. Study completionOct 2007

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 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Enrolment
30 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00100633
Sponsor's protocol ID
P01AI055793
Other IDs
P01AI055793
Status last verified
Dec 2007
First submitted
4 Jan 2005
Last updated
1 Oct 2008
Results posted
No

Publications

  • Jiang JQ, Patrick A, Moss RB, Rosenthal KL. CD8+ T-cell-mediated cross-clade protection in the genital tract following intranasal immunization with inactivated human immunodeficiency virus antigen plus CpG oligodeoxynucleotides. J Virol. 2005 Jan;79(1):393-400. doi: 10.1128/JVI.79.1.393-400.2005.

    PubMed 15596832
  • Schlaepfer E, Audige A, von Beust B, Manolova V, Weber M, Joller H, Bachmann MF, Kundig TM, Speck RF. CpG oligodeoxynucleotides block human immunodeficiency virus type 1 replication in human lymphoid tissue infected ex vivo. J Virol. 2004 Nov;78(22):12344-54. doi: 10.1128/JVI.78.22.12344-12354.2004.

    PubMed 15507621

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing CpG7909 oligodeoxynucleotides (ODN) and Hepatitis B virus vaccine in people with HIV Infections and Hepatitis B, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site 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 8 inclusion and 11 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 1 Oct 2008. 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 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.

What does this combined 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.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

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

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

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 HIV peptides to which HIV infected patients respond using ELISPOT (CpG vs. no CpG in HIV infected participants). The study lists 3 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 NCT00100633, 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 1 Oct 2008.

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