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A Phase I, Multicenter, Randomized Trial to Evaluate the Safety and Immunogenicity of a Recombinant Vaccinia-HIV Envelope Vaccine (HIVAC-1e) in Combination With a Panel of Subunit Recombinant HIV Envelope Vaccines in Vaccinia-Naive Individuals

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT00001026
First Posted: August 31, 2001
Last Update Posted: March 17, 2014
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
National Institute of Allergy and Infectious Diseases (NIAID)
  Purpose

Primary: To determine whether combination vaccination, i.e., priming with a vaccinia recombinant-containing HIV envelope (HIVAC-1e) followed by boosting with a recombinant subunit envelope protein (gp160 or gp120), provides enhanced immunogenicity compared to subunit vaccination with the individual recombinant envelope proteins only. To compare the relative immunogenicity of a panel of HIV envelope subunit vaccines when administered as boosters following recombinant HIV-vaccinia priming. To evaluate the relative immunogenicity of one versus two doses of recombinant HIV-vaccinia prior to the subunit protein boost.

Secondary: To examine the safety of administering the individual subunit vaccines in combination with the HIV envelope vaccinia recombinant, and to extend the population to whom these proteins have been administered.

Previous studies suggest that priming with an HIV-vaccinia recombinant followed by boosting with subunit envelope proteins offers the most promising strategy to date for a safe and immunogenic vaccine in humans. This study will further examine the combination vaccine approach and define an optimal prime-boost strategy.


Condition Intervention Phase
HIV Infections Biological: gp160 Vaccine (Immuno-AG) Biological: rgp120/HIV-1IIIB Biological: rgp120/HIV-1MN Biological: rgp120/HIV-1 SF-2 Biological: HIVAC-1e Phase 1

Study Type: Interventional
Study Design: Masking: Double
Primary Purpose: Prevention
Official Title: A Phase I, Multicenter, Randomized Trial to Evaluate the Safety and Immunogenicity of a Recombinant Vaccinia-HIV Envelope Vaccine (HIVAC-1e) in Combination With a Panel of Subunit Recombinant HIV Envelope Vaccines in Vaccinia-Naive Individuals

Resource links provided by NLM:


Further study details as provided by National Institute of Allergy and Infectious Diseases (NIAID):

Estimated Enrollment: 56
Study Completion Date: December 1994
Detailed Description:

Previous studies suggest that priming with an HIV-vaccinia recombinant followed by boosting with subunit envelope proteins offers the most promising strategy to date for a safe and immunogenic vaccine in humans. This study will further examine the combination vaccine approach and define an optimal prime-boost strategy.

Healthy volunteers are randomized to one of eight groups. All patients receive initial immunization with HIVAC-1e, followed by two boosts at months 8 and 12 of rgp120/HIV-1SF2 (BIOCINE), rgp120/HIV-1IIIB (Genentech), rgp120/HIV-1MN (Genentech), or gp160 MN (Immuno-AG). Additionally, half of the patients in each subunit vaccine group receive a repriming with HIVAC-1e at month 4. Subjects are followed for 18 months.

  Eligibility

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria

Subjects must have:

  • Normal history and physical exam.
  • Negative HIV screening by ELISA, Western blot, and p24 antigen (PBMC HIV culture or HIV-specific PCR can be substituted for Western blot and p24 antigen).
  • No history of smallpox (vaccinia) vaccination.
  • Normal urinalysis.
  • Absolute CD4 count = or > 500 cells/mm3.

Exclusion Criteria

Co-existing Condition:

Subjects with the following conditions are excluded:

  • Hepatitis B surface antigenemia.
  • Medical or psychiatric condition that precludes compliance with the protocol.

Subjects with the following prior conditions are excluded:

  • History of immunodeficiency or chronic illness.
  • Eczema within the past year.

Prior Medication:

Excluded:

  • Prior experimental HIV vaccine.
  • Prior smallpox vaccine.
  • Immunoglobulin administration within 2 months prior to enrollment.
  • Any experimental agent within 2 months prior to enrollment.
  • History of use of immunosuppressive medications.

Prior Treatment:

Excluded:

  • Blood or blood product transfusion within the past 6 months.

    1. Current high risk for HIV transmission (persons previously at high risk for HIV transmission can be enrolled provided they have a negative HIV screening and no high-risk behavior has been practiced within the last 6 months).

  • Household contact with anyone who is pregnant, has eczema, is less than 12 months of age, or has immunodeficiency disease or is using immunosuppressive medications.
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00001026


Locations
United States, New York
Univ. of Rochester AVEG
Rochester, New York, United States, 14642
United States, Washington
UW - Seattle AVEG
Seattle, Washington, United States, 98144
Sponsors and Collaborators
National Institute of Allergy and Infectious Diseases (NIAID)
  More Information

Publications:
Clements ML, Corey L, Weinhold K, Schwartz D, Siliciano R, Matthews T, Hsieh R, Graham B, Keefer M, Gorse G, Zolla-Pazner S, Mascola J, Duliege A, Excler J, Tartaglia J, Paoletti E, Hu SL. HIV immunity induced by priming with canarypox or vaccinia-gp160 recombinants and boosting with rgp120. Inst of Hum Virol Annu Meet. 1996 Sept 7-13

Responsible Party: National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier: NCT00001026     History of Changes
Other Study ID Numbers: AVEG 010
10555 ( Registry Identifier: DAIDS ES Registry Number )
First Submitted: November 2, 1999
First Posted: August 31, 2001
Last Update Posted: March 17, 2014
Last Verified: May 2012

Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):
Vaccines, Synthetic
Vaccinia Virus
Viral Vaccines
HIV Envelope Protein gp160
HIV Envelope Protein gp120
AIDS Vaccines
HIV Seronegativity
HIV Preventive Vaccine

Additional relevant MeSH terms:
HIV Infections
Vaccinia
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases
Poxviridae Infections
DNA Virus Infections
Vaccines
Immunologic Factors
Physiological Effects of Drugs