A Phase I Multicenter Trial to Evaluate the Safety and Immunogenicity of HIV-1 Recombinant Envelope Glycoprotein gp160

This study has been completed.
Sponsor:
Collaborator:
Protein Sciences Corporation
Information provided by (Responsible Party):
National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier:
NCT00000956
First received: November 2, 1999
Last updated: May 23, 2012
Last verified: May 2012
  Purpose

To evaluate the safety and immune response to 640 and 1280 mcg HIV-1 recombinant envelope glycoprotein gp160. To evaluate the duration of antibody response and its relationship to dose and frequency of inoculation.

Evaluation of previous patients who received doses of 40 or 80 mcg gp160 vaccine indicates that, although serum anti-gp160 antibody responses were detected, the level and duration of those responses were limited. A preliminary observation suggests that weak functional antibody responses may develop following the 18 month booster of 40 or 80 mcg; therefore, a dose of gp160 vaccine having potentially greater immunogenicity is of particular interest.


Condition Intervention Phase
HIV Infections
Biological: gp160 Vaccine (MicroGeneSys)
Phase 1

Study Type: Interventional
Study Design: Endpoint Classification: Safety Study
Masking: Double-Blind
Primary Purpose: Prevention
Official Title: A Phase I Multicenter Trial to Evaluate the Safety and Immunogenicity of HIV-1 Recombinant Envelope Glycoprotein gp160

Resource links provided by NLM:


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

Estimated Enrollment: 25
Study Completion Date: March 1993
Detailed Description:

Evaluation of previous patients who received doses of 40 or 80 mcg gp160 vaccine indicates that, although serum anti-gp160 antibody responses were detected, the level and duration of those responses were limited. A preliminary observation suggests that weak functional antibody responses may develop following the 18 month booster of 40 or 80 mcg; therefore, a dose of gp160 vaccine having potentially greater immunogenicity is of particular interest.

In the initial phase of the study, 20 healthy volunteers receive 640 mcg gp160 vaccine and 5 healthy volunteers receive alum placebo. At least 30 days later, 20 additional volunteers receive 1280 mcg gp160 vaccine and 5 volunteers receive placebo. Injections are given on days 0, 30, 180, and 365.

  Eligibility

Ages Eligible for Study:   18 Years to 50 Years
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria

Patients must have:

  • Normal history and physical exam.
  • Negative for HIV infection by ELISA and Western blot (i.e., no reactivity at gp160, gp120, gp41, or p24).
  • T4 count >= 800 cells/mm3.
  • Normal chest x-ray and urinalysis.
  • Negative hepatitis B surface antigen.
  • Negative HIV p24 antigen test.
  • Normal skin reactivity by Merieux test.

Exclusion Criteria

Co-existing Condition:

Subjects with the following symptoms or conditions are excluded:

  • Positive PPD.
  • Syphilis, gonorrhea, or any other sexually transmitted diseases (including chlamydia or pelvic inflammatory disease).

Subjects with the following prior conditions are excluded:

  • History of immunodeficiency, chronic illness, or use of immunosuppressive medications.
  • Syphilis, gonorrhea, or any other sexually transmitted diseases (including chlamydia or pelvic inflammatory disease) in the past 6 months.

Prior Treatment:

Excluded:

  • Prior blood transfusions or cryoprecipitates within the past 6 months.

Identifiable high-risk behavior for HIV infection (as determined by prescreening questions designed to identify risk factors for HIV infection), including:

  • Any history of IV drug use.
  • Syphilis, gonorrhea, or any other sexually transmitted diseases (including chlamydia or pelvic inflammatory disease) in the past 6 months.
  • More than two sexual partners, or sexual contact with a high-risk partner, in the past 6 months.
  Contacts and Locations
Please refer to this study by its ClinicalTrials.gov identifier: NCT00000956

Locations
United States, Missouri
St. Louis Univ. School of Medicine AVEG
St. Louis, Missouri, United States, 63104
United States, Pennsylvania
JHU AVEG
Pittsburgh, Pennsylvania, United States
Sponsors and Collaborators
Protein Sciences Corporation
Investigators
Study Chair: Belshe R
Study Chair: Clements ML
Study Chair: Couch R
Study Chair: Dolin R
Study Chair: Levine M
Study Chair: Wright P
  More Information

Publications:

Responsible Party: National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier: NCT00000956     History of Changes
Other Study ID Numbers: AVEG 003B, 10542
Study First Received: November 2, 1999
Last Updated: May 23, 2012
Health Authority: United States: Federal Government

Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):
Vaccines, Synthetic
Vaccinia Virus
HIV-1
HIV Envelope Protein gp160
AIDS Vaccines
HIV Seronegativity
HIV Preventive Vaccine

Additional relevant MeSH terms:
HIV Infections
Acquired Immunodeficiency Syndrome
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Immunologic Deficiency Syndromes
Immune System Diseases
Slow Virus Diseases
Krestin
Antibiotics, Antineoplastic
Antineoplastic Agents
Therapeutic Uses
Pharmacologic Actions
Antiviral Agents
Anti-Infective Agents
Adjuvants, Immunologic
Immunologic Factors
Physiological Effects of Drugs
Interferon Inducers
Radiation-Protective Agents
Protective Agents

ClinicalTrials.gov processed this record on April 17, 2014