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HIV InfectionsPhase 1NCT00043511

Safety of an HIV DNA Vaccine Given to HIV Uninfected Adults

A Phase 1 study testing pGA2/JS2 Plasmid DNA Vaccine in people with HIV Infections, run by National Institute of Allergy and Infectious Diseases (NIAID) at 4 sites 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 this study is to see if the experimental HIV vaccine pGA2/JS2 is safe and is well tolerated at two different doses. Another important purpose of this study is to observe how the immune system responds to the vaccine at different dose levels. Read more about this study

Who is it for?
Ages 18 to 40 yearsHealthy volunteers can take part
Conditions the study is for
HIV Infections
What is being tested?
pGA2/JS2 Plasmid DNA Vaccine
Type of treatment
Vaccines
How many people
30 participants
Where
4 sitesUnited States
Study dates
Start not givento Apr 2003
Phase
Phase 1
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 40 years
  • All sexes
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Participants may be eligible for this study if they:
  • Are between the ages of 18 and 40.
  • Are at low risk of HIV infection.
  • Have access to a participating study site and are available for follow-up for 12 months.
  • Complete a questionnaire to evaluate understanding of the study prior to enrollment.
  • Are willing to receive HIV test results.
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  • Are in good general health.
  • Do not have hepatitis B.
  • Are HCV antibody negative or, if HCV antibody positive, are HCV PCR negative.
  • Have had a negative HIV blood test within 8 weeks prior to enrollment.
  • Women of childbearing potential must agree to use acceptable methods of contraception.
  • Note: All inclusion criteria must be assessed within 56 days prior to study entry.

Who cannot join

  • Participants may not be eligible for this study if they:
  • Have been immunized against smallpox.
  • Have received HIV vaccines or placebo in a previous HIV vaccine trial.
  • Have used drugs that interfere with the immune system within the past 6 months.
  • Have received blood products within 120 days before HIV screening.
  • Have received immunoglobulin within 60 days before HIV screening.
Show all 26Show fewer
  • Have received a live vaccine within 30 days prior to initial study vaccine administration.
  • Have used investigational research agents within 30 days prior to initial study vaccine administration.
  • Have received a killed vaccine or allergy treatment injections within 14 days of study vaccine administration.
  • Are currently taking anti-TB therapy.
  • Have a history of serious harmful reactions to vaccines.
  • Have a history of immune system disease.
  • Have a history of unstable asthma.
  • Have a history of type I or type II diabetes.
  • Have a history of thyroid disease.
  • Have a history of tissue swelling with serious episodes.
  • Have a history of high blood pressure.
  • Have a history of a bleeding disorder that was diagnosed by a doctor.
  • Have active syphilis.
  • Have a history of cancer, unless it has been surgically removed and in the opinion of the investigator is not likely to recur during the study period.
  • Have a history of a seizure disorder.
  • Have had their spleen removed.
  • Have mental illness that would interfere with compliance with the protocol.
  • Have any other conditions that, in the judgement of the investigator, would interfere with the study.
  • Are pregnant or breast-feeding.
  • Note: All exclusion criteria must be assessed within 56 days prior to study entry.

Trial locations and contacts

4 sites in 1 country.

United States4 sites

  • Alabama Vaccine CRS

    Birmingham, Alabama

  • UCSF, Gen. Clinical Research Ctr., Mt. Zion Hosp.

    San Francisco, California, 94102

  • San Francisco Vaccine and Prevention CRS

    San Francisco, California

  • FHCRC/UW Vaccine CRS

    Seattle, Washington

Other trials in United States

About this study

Official title: A Phase I Trial to Evaluate the Safety and Immunogenicity of the HIV-1 pGA2/JS2 Plasmid DNA Vaccine Given Intramuscularly (IM) in HIV-1 Uninfected Adults

The purpose of this study is to see if the experimental HIV vaccine pGA2/JS2 is safe and is well tolerated at two different doses. Another important purpose of this study is to observe how the immune system responds to the vaccine at different dose levels.

Vaccines are given to people to help their bodies fight infection. The vaccine being tested in this study is a DNA vaccine. The pGA2/JS2 plasmid DNA vaccine instructs the body to make some HIV proteins. These HIV proteins may trigger an immune response. Because only a few of the many proteins HIV needs are made through DNA vaccination, there is no risk of getting HIV from the vaccination. This and other similar DNA vaccines have been tested for safety in mice, rabbits, and monkeys. The vaccine has been well tolerated at doses to be used in this study.

Read the detailed description

DNA vaccination has induced immune responses in animals to a number of viral, bacterial, and parasite derived antigens. Early clinical experiences with HIV DNA vaccines in humans indicate: 1) the tolerability and short-term safety of DNA at doses up to 5000 mcg in humans are excellent; and 2) there is potential for immunogenicity.

The pGA2/JS2 DNA vaccine is part of a planned prime/boost regimen of a DNA vaccine prime followed by a modified vaccinia Ankara (MVA) vaccine boost. In studies in monkeys, a combination of a DNA vaccine and an MVA vaccine protected the monkeys against disease caused by a monkey virus similar to HIV. The current study is an initial investigation of the safety and immunogenicity of the DNA vaccine given alone. The pGA2/JS2 DNA vaccine expresses gag, protease, reverse transcriptase, env, tat, vpu, and rev.

Participants are randomized to 1 of 2 groups. People in Group A receive either 2 injections of a lower dose (300 mcg) of the DNA plasmid vaccine or the placebo control. People in Group B receive either 2 injections of a higher dose (3000 mcg) of the DNA plasmid vaccine or the control. Group B will be enrolled only if the vaccine is found to be safe and well-tolerated during the initial 2-week evaluation of all participants in Group A. Participants receive vaccinations administered at Months 0 and 2. All vaccinations are administered by intramuscular (IM) injection in an outpatient setting. Participants have about 10 clinic visits during this study, including the screening and injection visits. Participants give blood and urine samples at study visits. They are tested for HIV before entering the study and 4 more times during the study. Women who can become pregnant may undergo up to 3 pregnancy tests during the study period.

Conditions
HIV Infections
Being tested
pGA2/JS2 Plasmid DNA Vaccine
Keywords
Injections, Intramuscular, HIV Seronegativity, Plasmids, Vaccines, DNA, 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/JS2 Plasmid DNA VaccineBiological

Timeline

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

  1. First posted12 Aug 2002 (estimated)
  2. Study completionApr 2003

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
Prevention
Masking
Double blind
Enrolment
30 participants
IDs, dates and publications
ClinicalTrials.gov ID
NCT00043511
Sponsor's protocol ID
HVTN 045
Other IDs
10593
Status last verified
Oct 2021
First submitted
9 Aug 2002
Last updated
14 Oct 2021
Results posted
No

Publications

  • Robinson HL, Pertmer TM. DNA vaccines for viral infections: basic studies and applications. Adv Virus Res. 2000;55:1-74. doi: 10.1016/s0065-3527(00)55001-5. No abstract available.

    PubMed 11050940

  • Gurunathan S, Klinman DM, Seder RA. DNA vaccines: immunology, application, and optimization*. Annu Rev Immunol. 2000;18:927-74. doi: 10.1146/annurev.immunol.18.1.927.

    PubMed 10837079

  • Amara RR, Villinger F, Altman JD, Lydy SL, O'Neil SP, Staprans SI, Montefiori DC, Xu Y, Herndon JG, Wyatt LS, Candido MA, Kozyr NL, Earl PL, Smith JM, Ma HL, Grimm BD, Hulsey ML, Miller J, McClure HM, McNicholl JM, Moss B, Robinson HL. Control of a mucosal challenge and prevention of AIDS by a multiprotein DNA/MVA vaccine. Science. 2001 Apr 6;292(5514):69-74. doi: 10.1126/science.1058915.

    PubMed 11393868

  • Ramshaw IA, Ramsay AJ. The prime-boost strategy: exciting prospects for improved vaccination. Immunol Today. 2000 Apr;21(4):163-5. doi: 10.1016/s0167-5699(00)01612-1. No abstract available.

    PubMed 10740236

Questions about this trial

What is this clinical trial studying?

A Phase 1 study testing pGA2/JS2 Plasmid DNA Vaccine in people with HIV Infections, run by National Institute of Allergy and Infectious Diseases (NIAID) at 4 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 12 inclusion and 26 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 14 Oct 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 4 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.

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?

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.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00043511, 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 14 Oct 2021.

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