AzTrials
AzTrials

HIV InfectionsPhase 2NCT00820846

Safety of and Immune Response to a Prime-Boost Vaccine Regimen in HIV-Uninfected Vaccine-Naive Adults

A Phase 2 study testing pGA2/JS7 DNA vaccine and MVA/HIV62 vaccine in people with HIV Infections, run by National Institute of Allergy and Infectious Diseases (NIAID) at 12 sites in 2 countries.

Completed

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

Official record
Search all trials

Trial summary

The purpose of this study is to evaluate the safety of and immune response to a two-vaccine regimen in healthy, HIV-uninfected adults who have never received an HIV preventive vaccine before. Read more about this study

Who is it for?
Ages 18 to 50 yearsHealthy volunteers can take part
Conditions the study is for
HIV Infections
What is being tested?
pGA2/JS7 DNA vaccine and MVA/HIV62 vaccine
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
299 participants
Where
12 sitesin 2 countries
Study dates
Jan 2009to Sep 2014
Phase
Phase 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 50 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Access to a participating HIV Vaccine Trials Network (HVTN) clinical research center and willing to be followed for the planned duration of the study
  • Ability and willingness to provide informed consent
  • Assessment of understanding: completion of a questionnaire prior to first vaccination; demonstration of understanding for all questionnaire items answered incorrectly
  • Willingness to receive HIV test results
  • Good general health as shown by medical history, physical exam, and screening laboratory tests
  • Certain specified laboratory values. More information on this criterion can be found in the study protocol.
Show all 9Show fewer
  • If pregnancy is possible, must agree to use contraception from at least 21 days prior to enrollment through the last protocol visit for sexual activity that could lead to pregnancy. More information on this criterion can be found in the study protocol.
  • Willingness to discuss HIV infection risks, amenable to HIV risk reduction counseling, committed to maintaining behavior consistent with low risk of HIV exposure through the last required protocol clinic visit, and willing to continue annual follow-up contact after the last required protocol clinic visit for a total of 5 years following enrollment
  • Assessed by clinic staff as being at "low risk" of HIV infection on the basis of sexual behaviors within the 12 months prior to enrollment. More information on this criterion can be found in the study protocol.

Who cannot join

  • HIV vaccine(s) or other experimental vaccines, received in a prior HIV vaccine trial. More information on this criterion can be found in the study protocol.
  • Receipt of smallpox vaccination
  • Excessive alcohol use, frequent binge drinking, chronic marijuana abuse, or use of any other illicit drugs, such as cocaine or methamphetamine, within the past 12 months
  • History of newly acquired or newly diagnosed syphilis; history of newly acquired gonorrhea, nongonococcal urethritis, herpes simplex virus type 2 (HSV2), chlamydia, pelvic inflammatory disease (PID), trichomonas, mucopurulent cervicitis,epididymitis, proctitis, lymphogranuloma venereum, chancroid, or hepatitis B within the past 12 months
  • Immunosuppressive medication received within 168 days before first vaccination. Certain medications are excluded from this criterion; more information can be found in the study protocol.
  • Blood products received within 120 days before first vaccination
Show all 32Show fewer
  • Immunoglobulin received within 60 days before first vaccination
  • Live attenuated vaccines other than influenza vaccine received within 30 days before first vaccination or scheduled within 14 days after injection
  • Influenza vaccine or any vaccines that are not live attenuated and were received within 14 days prior to first vaccination or that are scheduled within 14 days after injection
  • Allergy treatment with antigen injections within 30 days before first vaccination or scheduled within 14 days after injection
  • Intent to participate in another study of an investigational research agent during the planned duration of this study
  • Current anti-tuberculosis (TB) prophylaxis or therapy
  • Clinically significant medical condition. More information on this criterion can be found in the study protocol.
  • Any medical, psychiatric, or social condition or occupational or other responsibility that in the opinion of the investigator might interfere with the study protocol
  • Serious adverse reactions to vaccines. More information on this criterion can be found in the study protocol.
  • Allergy to eggs and/or egg products
  • History of or known active cardiac disease. More information on this criterion can be found in the study protocol.
  • Participants who have two or more of the following cardiac risk factors: (1) participant report of history of elevated blood cholesterol defined as fasting low-density lipoprotein (LDL) greater than 160 mg/dL; (2) first degree relative (e.g., mother, father, sister, or brother) who had coronary artery disease before the age of 50 years; (3) current smoker; or (4) body mass index greater than or equal to 35.
  • Electrocardiogram (ECG) with clinically significant findings. More information on this criterion can be found in the study protocol.
  • Autoimmune disease
  • Immunodeficiency
  • Asthma other than mild, well-controlled asthma. More information on this criterion can be found in the study protocol.
  • Diabetes mellitus, type 1 or type 2, including cases controlled with diet alone. Those with a history of isolated gestational diabetes are not excluded.
  • Thyroidectomy or thyroid disease requiring medication during the last 12 months
  • Angioedema within the last 3 years if episodes are considered serious or have required medication within the last 2 years
  • Hypertension. More information on this criterion can be found in the study protocol.
  • Body mass index greater than or equal to 40
  • Bleeding disorder diagnosed by a doctor
  • Malignancy. Participants with surgical excisions and subsequent observation periods, that in the investigator's estimation have a reasonable assurance of sustained cure or are unlikely to recur during the period of study, are not excluded.
  • Seizure disorder, unless the participant has not required medication or had a seizure within the last 3 years.
  • Asplenia
  • Pregnant or breastfeeding

Trial locations and contacts

12 sites in 2 countries.

12 sites in 2 countries

United States10 sites
  • Alabama CRS

    Birmingham, Alabama, 35294

  • Brigham and Women's Hospital Vaccine CRS (BWH VCRS)

    Boston, Massachusetts, 02115-6110

  • Fenway Health (FH) CRS

    Boston, Massachusetts, 02215-4302

  • The Hope Clinic of the Emory Vaccine Center CRS

    Decatur, Georgia, 30030

  • Vanderbilt Vaccine (VV) CRS

    Nashville, Tennessee, 37232-2582

  • Columbia P&S CRS

    New York, New York, 10032-3732

  • New York Blood Center CRS

    New York, New York, 10065

  • University of Rochester Vaccines to Prevent HIV Infection CRS

    Rochester, New York, 14642

  • Bridge HIV CRS

    San Francisco, California, 94143

  • Seattle Vaccine and Prevention CRS

    Seattle, Washington, 98109-1024

Other trials in United States

Peru2 sites
  • ACSA CRS

    Iquitos, Maynas, 1

  • Barranco CRS

    Lima, 04

Other trials in Peru

About this study

Official title: A Phase 2a Clinical Trial to Evaluate the Safety and Immunogenicity of a Prime-boost Vaccine Regimen of pGA2/JS7 DNA and MVA/HIV62, in Healthy, HIV Uninfected Vaccinia-naive Adult Participants

The purpose of this study is to evaluate the safety of and immune response to a two-vaccine regimen in healthy, HIV-uninfected adults who have never received an HIV preventive vaccine before.

Read the detailed description

Some of the first HIV vaccines were designed to trigger neutralizing antibody responses as a way to prevent HIV infection. Unfortunately, the first versions of these vaccines were not able to achieve their desired response. An alternative strategy to the antibody approach is the stimulation of HIV-specific CD8 T-lymphocyte (CTL) responses. CTL responses were previously demonstrated to play an important role in the control of simian immunodeficiency virus (SIV), the HIV equivalent seen in rhesus macaque monkeys. Additionally, other studies suggest CTLs play an important role in viral control during chronic infection. Based on this information, several groups have shifted their focus to the development of CTL-based vaccines, some of which have entered advanced clinical trials.

A DNA/rMVA vaccine strategy is structured to bring about both T-cell and antibody responses. The primary vaccination is DNA based and will express only HIV proteins as a way to produce an HIV-focused immune response. An rMVA vaccine strategy expresses both HIV and MVA proteins and may amplify the focused response of a DNA vaccination. Participants in this study will receive either a combined DNA/rMVA vaccine strategy, in which they receive both types of vaccines; an rMVA vaccine strategy, in which they receive only the rMVA vaccine; or a placebo. The DNA and rMVA are physically two different vaccinations given at separate times, but in the DNA/rMVA group, they will be used together to make up one preventive regimen. Both vaccine components express noninfectious virus-like particles.

This study is a multicenter, randomized study that is conducted in two parts and comprised of five groups. In all groups, participants will receive four injections. In Part A, Groups 1 and 2 will be compared. In Group 1, participants will receive two shots of the DNA vaccine and two shots of the rMVA vaccine. In Group 2, participants will receive four placebo injections. In Part B, Groups 3, 4, and 5 will be compared. In Group 3, the combination vaccine strategy will be used again; in Group 4, a single-vaccine strategy of three injections of the rMVA vaccine and one injection of placebo will be given; and in Group 5, participants will again receive four placebo injections. The study will last for a total of 12 months for participants, including enrollment and follow-up.

Conditions
HIV Infections
Being tested
pGA2/JS7 DNA vaccine, Placebo, MVA/HIV62 vaccine
Keywords
HIV Seronegativity, HIV Preventive Vaccine
Medical subject headings
HIV Infections

What participants receive

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

  • pGA2/JS7 DNA vaccineBiological

    1 mL of pGA2/JS7 DNA vaccine

  • PlaceboBiological

    1 mL of sodium chloride for injection

  • MVA/HIV62 vaccineBiological

    1 mL of recombinant modified vaccinia Ankara/HIV clade B gag-pol-env (MVA/HIV62)

Study groups in NCT00820846
Study groupRoleWhat they receive
Part A, Group 1ExperimentalParticipants will receive two injections of the pGA2/JS7 DNA vaccine and then two injections of the MVA/HIV62 vaccine
Receives: Biological: pGA2/JS7 DNA vaccine; Biological: MVA/HIV62 vaccine
Part A, Group 2Placebo comparatorParticipants will receive four placebo injections
Receives: Biological: Placebo
Part B, Group 3ExperimentalParticipants will receive two injections of the pGA2/JS7 DNA vaccine and then two injections of the MVA/HIV62 vaccine
Receives: Biological: pGA2/JS7 DNA vaccine; Biological: MVA/HIV62 vaccine
Part B, Group 4ExperimentalParticipants will receive three injections of the MVA/HIV62 vaccine and one injection of the placebo
Receives: Biological: Placebo; Biological: MVA/HIV62 vaccine
Part B, Group 5Placebo comparatorParticipants will receive four placebo injections
Receives: Biological: Placebo

What is being measured

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

  1. Frequency of severe local and systemic reactogenicity signs and symptoms

    Measured: Throughout study

  2. Frequency of adverse events and assessed relationship to study products

    Measured: Throughout study

  3. Laboratory measures of safety, including boxplots of white blood cells (WBC), neutrophils, lymphocytes, hemoglobin, platelets, alanine aminotransferase (ALT), creatinine, and cardiac troponin results at baseline and following vaccination

    Measured: At study entry and following vaccinations

  4. Number of participants with early discontinuation of vaccinations, by treatment group and reason for discontinuation

    Measured: Throughout study

Secondary outcomes (6)
  1. Responses to individual HIV potential T-cell epitope (PTE) peptide pools representing Env, Gag, and Pol

    Measured: Throughout study

  2. Percentage of responding CD4+ and CD8+ T cells producing interferon (IFN)-gamma, interleukin (IL)-2, tumor necrosis factor (TNF)-alpha, CD57, perforin, or granzyme B or demonstrating other functions

    Measured: Measured at study completion

  3. Frequency and titer of humoral responses detected by HIV binding antibody assays to p55 Gag and gp140 Env

    Measured: Measured at study completion

  4. Frequency of vaccine-induced positive results with end of study HIV serological testing by commercial assays

    Measured: Measured at study completion

  5. Frequency of CD4+ T-cell responses

    Measured: Measured 2 weeks following last MVA vaccination

  6. Frequency of CD8+ T-cell responses

    Measured: Measured 2 weeks following last MVA vaccination

Timeline

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

  1. First posted12 Jan 2009 (estimated)
  2. Study startJan 2009
  3. Primary completionAug 2012
  4. Study completionSep 2014

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 2
Primary purpose
Prevention
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Care provider
Enrolment
299 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00820846
Sponsor's protocol ID
HVTN 205
Other IDs
10658
Status last verified
Aug 2022
First submitted
8 Jan 2009
Last updated
9 Aug 2022
Results posted
No
Data monitoring committee
Yes

Publications

  • Miedema F. A brief history of HIV vaccine research: stepping back to the drawing board? AIDS. 2008 Sep 12;22(14):1699-703. doi: 10.1097/QAD.0b013e3283021a61.

    PubMed 18753857
  • Rerks-Ngarm S, Brown AE, Khamboonruang C, Thongcharoen P, Kunasol P. HIV/AIDS preventive vaccine 'prime-boost' phase III trial: foundations and initial lessons learned from Thailand. AIDS. 2006 Jul 13;20(11):1471-9. doi: 10.1097/01.aids.0000237362.26370.f8. No abstract available.

    PubMed 16847401
  • Goepfert PA, Elizaga ML, Seaton K, Tomaras GD, Montefiori DC, Sato A, Hural J, DeRosa SC, Kalams SA, McElrath MJ, Keefer MC, Baden LR, Lama JR, Sanchez J, Mulligan MJ, Buchbinder SP, Hammer SM, Koblin BA, Pensiero M, Butler C, Moss B, Robinson HL; HVTN 205 Study Group; National Institutes of Allergy and Infectious Diseases HIV Vaccines Trials Network. Specificity and 6-month durability of immune responses induced by DNA and recombinant modified vaccinia Ankara vaccines expressing HIV-1 virus-like particles. J Infect Dis. 2014 Jul 1;210(1):99-110. doi: 10.1093/infdis/jiu003. Epub 2014 Jan 7.

    PubMed 24403557
  • Huang Y, Zhang L, Janes H, Frahm N, Isaacs A, Kim JH, Montefiori D, McElrath MJ, Tomaras GD, Gilbert PB. Predictors of durable immune responses six months after the last vaccination in preventive HIV vaccine trials. Vaccine. 2017 Feb 22;35(8):1184-1193. doi: 10.1016/j.vaccine.2016.09.053. Epub 2017 Jan 25.

    PubMed 28131393

Questions about this trial

What is this clinical trial studying?

A Phase 2 study testing pGA2/JS7 DNA vaccine and MVA/HIV62 vaccine in people with HIV Infections, run by National Institute of Allergy and Infectious Diseases (NIAID) at 12 sites in 2 countries.

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 9 inclusion and 32 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 9 Aug 2022. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 12 sites in United States, Peru. 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. Some participants in this study may receive a placebo. 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 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?

Frequency of severe local and systemic reactogenicity signs and symptoms (time frame: Throughout study). 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 NCT00820846, which also lists 4 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 9 Aug 2022.

Free account

Log in to keep searching

You’ve used your 3 free searches. AzTrials is free: log in or create a free account to keep searching clinical trials and save the ones you want to follow.

Create a free accountLog in