HIV InfectionsPhase 1NCT00000631
A Phase I Randomized Trial to Evaluate the Safety and Immunogenicity of Vaccinia-HIV Envelope Recombinant Vaccine (HIVAC-1e) in Combination With Soluble Recombinant Envelope Vaccine (VaxSyn)
A Phase 1 study testing HIVAC-1e and gp160 Vaccine (MicroGeneSys) in people with HIV Infections, run by National Institute of Allergy and Infectious Diseases (NIAID) at 1 site in United States.
Trial summary
Primary: To determine whether additional boosting with soluble recombinant gp160 vaccine (VaxSyn) after priming with a vaccinia-HIV envelope recombinant (HIVAC-1e) provides a significant advantage in the degree and duration of immunogenicity. Read more about this study
- Who is it for?
- Ages 18 to 60 years, men onlyHealthy volunteers can take part
- Conditions the study is for
- HIV Infections
- What is being tested?
- HIVAC-1e and gp160 Vaccine (MicroGeneSys)
- Type of treatment
- Vaccines
- How many people
- 13 participants
- Where
- 1 siteUnited States
- Study dates
- Start not givento Dec 1992
- 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 60 years
- Men only
- Healthy volunteers accepted
- Adult
Who may be able to join
- Patients must have:
- Normal history and physical exam.
- Negative ELISA for HIV.
- Negative HIV p24 antigen test.
- Normal urinalysis.
- Prior Medication: Required:
- Two prior doses of HIVAC-1e (or DryVax) and two prior doses of gp160 vaccine.
Who cannot join
- Co-existing Condition:
- Patients with the following symptoms and conditions are excluded:
- Risk factors for HIV infection including active intravenous drug use and more than 2 sexual partners.
- History of immunodeficiency or chronic illness.
- Hypersensitivity to insects.
- Medical or psychiatric condition that makes it unlikely the patient will comply with the protocol.
Show all 17Show fewer
- Patients with the following prior conditions are excluded:
- History of immunodeficiency or chronic illness.
- Prior Medication:
- Excluded:
- Immunosuppressive medications.
- Prior Treatment:
- Excluded:
- Blood or blood product transfusion within the past 6 months.
- Risk Behavior: Excluded:
- Intravenous drug use.
- More than 2 sexual partners.
Trial locations and contacts
1 site in 1 country.
United States1 site
Children's Hospital & Medical Center / Seattle ACTU
Seattle, Washington, 981050371
About this study
Primary: To determine whether additional boosting with soluble recombinant gp160 vaccine (VaxSyn) after priming with a vaccinia-HIV envelope recombinant (HIVAC-1e) provides a significant advantage in the degree and duration of immunogenicity. Secondary: To learn more about the safety of the combination use of the two HIV envelope vaccines in the study (VaxSyn and HIVAC-1e).
Recent Phase I trials conducted at the AIDS Vaccine Units have shown that antibodies have persisted in most recipients for 6 months after boosting, and responses seem significantly higher and more persistent than responses achieved by just two doses of soluble protein vaccine alone or two doses of HIVAC-1e alone. This study tests in a previously recruited cohort of volunteers whether additional boosting with soluble recombinant gp160 results in increased immunogenicity of longer duration.
Read the detailed description
Recent Phase I trials conducted at the AIDS Vaccine Units have shown that antibodies have persisted in most recipients for 6 months after boosting, and responses seem significantly higher and more persistent than responses achieved by just two doses of soluble protein vaccine alone or two doses of HIVAC-1e alone. This study tests in a previously recruited cohort of volunteers whether additional boosting with soluble recombinant gp160 results in increased immunogenicity of longer duration.
Twelve volunteers who have previously received two doses of HIVAC-1e (or DryVax) and two doses of gp160 receive an additional boost of gp160 at 12-20 months after the last boost and an additional dose of HIVAC-1e at least 9 months after the final gp160 boost.
- Conditions
- HIV Infections
- Being tested
- HIVAC-1e, gp160 Vaccine (MicroGeneSys)
- Keywords
- Vaccines, Synthetic, Vaccinia Virus, Viral Envelope Proteins, Viral Vaccines, AIDS Vaccines, HIV Seronegativity, HIV Preventive Vaccine
- Medical subject headings
- HIV Infections, Vaccinia
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
HIVAC-1eBiological
gp160 Vaccine (MicroGeneSys)Biological
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted31 Aug 2001 (estimated)
- Study completionDec 1992
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Publications (7)Papers the sponsor has linked to this study.
- Other trials for HIV InfectionsStudies of the same condition, open and under way.
- More trials run by National Institute of Allergy and Infectious Diseases (NIAID)The sponsor's other registered studies.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
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
- None (open label)
- Enrolment
- 13 participants
Sponsor and investigators
- Sponsor type
- US National Institutes of Health
- Responsible party
- Sponsor
- Investigators
- Corey L, Study chair
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00000631
- Sponsor's protocol ID
- AVEG 002B
- Other IDs
- 10539
- Status last verified
- Oct 2021
- First submitted
- 2 Nov 1999
- Last updated
- 2 Nov 2021
- Results posted
- No
Publications
McElrath MJ, Corey L, Greenberg PD. Evaluation of cytotoxic T cell responses to candidate HIV-1 vaccines in HIV-1-uninfected individuals. AIDS Res Hum Retroviruses. 1994;10 Suppl 2:S69-72.
PubMed 7865336Kent SJ, Greenberg PD, Hoffman MC, Akridge RE, McElrath MJ. Antagonism of vaccine-induced HIV-1-specific CD4+ T cells by primary HIV-1 infection: potential mechanism of vaccine failure. J Immunol. 1997 Jan 15;158(2):807-15.
PubMed 8992998Mosier DE, Gulizia RJ, MacIsaac PD, Corey L, Greenberg PD. Resistance to human immunodeficiency virus 1 infection of SCID mice reconstituted with peripheral blood leukocytes from donors vaccinated with vaccinia gp160 and recombinant gp160. Proc Natl Acad Sci U S A. 1993 Mar 15;90(6):2443-7. doi: 10.1073/pnas.90.6.2443.
PubMed 8460155McElrath J, Peterson E, Dragavon J, Berger D, Hoffman M, Klucking S, Greenberg P, Corey L. Combination prime-boost approach to HIV vaccination in seronegative individuals: enhanced immunity with additional subunit gp160 protein boosting. Int Conf AIDS. 1992 Jul 19-24;8(1):Mo9 (abstract no MoB 0027)
McElrath MJ, Rabin M, Hoffman M, Klucking S, Garcia JV, Greenberg PD. Evaluation of human immunodeficiency virus type 1 (HIV-1)-specific cytotoxic T-lymphocyte responses utilizing B-lymphoblastoid cell lines transduced with the CD4 gene and infected with HIV-1. J Virol. 1994 Aug;68(8):5074-83. doi: 10.1128/JVI.68.8.5074-5083.1994.
PubMed 8035507McElrath MJ, Corey L, Greenberg PD, Matthews TJ, Montefiori DC, Rowen L, Hood L, Mullins JI. Human immunodeficiency virus type 1 infection despite prior immunization with a recombinant envelope vaccine regimen. Proc Natl Acad Sci U S A. 1996 Apr 30;93(9):3972-7. doi: 10.1073/pnas.93.9.3972.
PubMed 8633000Cooney EL, McElrath MJ, Corey L, Hu SL, Collier AC, Arditti D, Hoffman M, Coombs RW, Smith GE, Greenberg PD. Enhanced immunity to human immunodeficiency virus (HIV) envelope elicited by a combined vaccine regimen consisting of priming with a vaccinia recombinant expressing HIV envelope and boosting with gp160 protein. Proc Natl Acad Sci U S A. 1993 Mar 1;90(5):1882-6. doi: 10.1073/pnas.90.5.1882.
PubMed 8446603
Study at a glance
From the registry record, last updated by the sponsor on 2 Nov 2021. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- A Phase I Randomized Trial to Evaluate the Safety and Immunogenicity of Vaccinia-HIV Envelope Recombinant Vaccine (HIVAC-1e) in Combination With Soluble Recombinant Envelope Vaccine (VaxSyn)
- ClinicalTrials.gov ID
- NCT00000631
- Acronym / sponsor ID
- AVEG 002B
- Conditions
- HIV Infections
- Keywords
- Vaccines, Synthetic, Vaccinia Virus, Viral Envelope Proteins, Viral Vaccines, AIDS Vaccines, HIV Seronegativity, HIV Preventive Vaccine
- Phase
- Phase 1
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 13 participants
- Lead sponsor
- National Institute of Allergy and Infectious Diseases (NIAID)US National Institutes of Health
- Study completion
- Dec 1992 (actual)
- First posted
- 31 Aug 2001 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
Primary: To determine whether additional boosting with soluble recombinant gp160 vaccine (VaxSyn) after priming with a vaccinia-HIV envelope recombinant (HIVAC-1e) provides a significant advantage in the degree and duration of immunogenicity. Secondary: To learn more about the safety of the combination use of the two HIV envelope vaccines in the study (VaxSyn and HIVAC-1e).
Recent Phase I trials conducted at the AIDS Vaccine Units have shown that antibodies have persisted in most recipients for 6 months after boosting, and responses seem significantly higher and more persistent than responses achieved by just two doses of soluble protein vaccine alone or two doses of HIVAC-1e alone. This study tests in a previously recruited cohort of volunteers whether additional boosting with soluble recombinant gp160 results in increased immunogenicity of longer duration.
Detailed description
Recent Phase I trials conducted at the AIDS Vaccine Units have shown that antibodies have persisted in most recipients for 6 months after boosting, and responses seem significantly higher and more persistent than responses achieved by just two doses of soluble protein vaccine alone or two doses of HIVAC-1e alone. This study tests in a previously recruited cohort of volunteers whether additional boosting with soluble recombinant gp160 results in increased immunogenicity of longer duration.
Twelve volunteers who have previously received two doses of HIVAC-1e (or DryVax) and two doses of gp160 receive an additional boost of gp160 at 12-20 months after the last boost and an additional dose of HIVAC-1e at least 9 months after the final gp160 boost.
Study design
- Primary purpose
- Prevention
- Masking
- None (open label)
Who may qualify
- Ages
- 18 to 60 years
- Sex
- Male only
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (7 listed)
- Normal history and physical exam.
- Negative ELISA for HIV.
- Negative HIV p24 antigen test.
- Normal urinalysis.
- Two prior doses of HIVAC-1e (or DryVax) and two prior doses of gp160 vaccine.
Key exclusion criteria (17 listed)
- Risk factors for HIV infection including active intravenous drug use and more than 2 sexual partners.
- History of immunodeficiency or chronic illness.
- Hypersensitivity to insects.
- Medical or psychiatric condition that makes it unlikely the patient will comply with the protocol.
- History of immunodeficiency or chronic illness.
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| HIVAC-1e | Biological | – |
| gp160 Vaccine (MicroGeneSys) | Biological | – |
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 2 Nov 2021.
- Background: PubMed 7865336McElrath MJ, Corey L, Greenberg PD. Evaluation of cytotoxic T cell responses to candidate HIV-1 vaccines in HIV-1-uninfected individuals. AIDS Res Hum Retroviruses. 1994;10 Suppl 2:S69-72.
- Background: PubMed 8992998Kent SJ, Greenberg PD, Hoffman MC, Akridge RE, McElrath MJ. Antagonism of vaccine-induced HIV-1-specific CD4+ T cells by primary HIV-1 infection: potential mechanism of vaccine failure. J Immunol. 1997 Jan 15;158(2):807-15.
- Background: PubMed 8460155Mosier DE, Gulizia RJ, MacIsaac PD, Corey L, Greenberg PD. Resistance to human immunodeficiency virus 1 infection of SCID mice reconstituted with peripheral blood leukocytes from donors vaccinated with vaccinia gp160 and recombinant gp160. Proc Natl Acad Sci U S A. 1993 Mar 15;90(6):2443-7. doi: 10.1073/pnas.90.6.2443.
- BackgroundMcElrath J, Peterson E, Dragavon J, Berger D, Hoffman M, Klucking S, Greenberg P, Corey L. Combination prime-boost approach to HIV vaccination in seronegative individuals: enhanced immunity with additional subunit gp160 protein boosting. Int Conf AIDS. 1992 Jul 19-24;8(1):Mo9 (abstract no MoB 0027)
- Background: PubMed 8035507McElrath MJ, Rabin M, Hoffman M, Klucking S, Garcia JV, Greenberg PD. Evaluation of human immunodeficiency virus type 1 (HIV-1)-specific cytotoxic T-lymphocyte responses utilizing B-lymphoblastoid cell lines transduced with the CD4 gene and infected with HIV-1. J Virol. 1994 Aug;68(8):5074-83. doi: 10.1128/JVI.68.8.5074-5083.1994.
- Background: PubMed 8633000McElrath MJ, Corey L, Greenberg PD, Matthews TJ, Montefiori DC, Rowen L, Hood L, Mullins JI. Human immunodeficiency virus type 1 infection despite prior immunization with a recombinant envelope vaccine regimen. Proc Natl Acad Sci U S A. 1996 Apr 30;93(9):3972-7. doi: 10.1073/pnas.93.9.3972.
- Background: PubMed 8446603Cooney EL, McElrath MJ, Corey L, Hu SL, Collier AC, Arditti D, Hoffman M, Coombs RW, Smith GE, Greenberg PD. Enhanced immunity to human immunodeficiency virus (HIV) envelope elicited by a combined vaccine regimen consisting of priming with a vaccinia recombinant expressing HIV envelope and boosting with gp160 protein. Proc Natl Acad Sci U S A. 1993 Mar 1;90(5):1882-6. doi: 10.1073/pnas.90.5.1882.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Corey L study chair
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A Phase 1 study testing HIVAC-1e and gp160 Vaccine (MicroGeneSys) in people with HIV Infections, 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 7 inclusion and 17 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 2 Nov 2021. 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 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 NCT00000631, which also lists 7 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 2 Nov 2021; AzTrials last refreshed its copy on 1 Nov 2026.