- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT00000886
A Phase I Safety and Immunogenicity Trial of HIV-1 gp120 C4-V3 Hybrid Polyvalent Peptide Immunogen Mixed in Mineral Oil Containing Mannose Mono-Oleate (IFA)
To evaluate the safety of HIV-1 gp120 C4-V3 hybrid polyvalent peptide immunogen (C4-V3 peptides) formulated in mineral oil containing mannose mono-oleate (IFA) in HIV-1 uninfected volunteers. To evaluate the humoral and cellular immune responses to the C4-V3 peptides as measured by the induction of 1 or more of the following: neutralizing antibodies to HIV-1 MN and RF, cross-neutralizing antibodies to primary isolates of HIV-1, HIV-1 antigen-specific lymphoproliferation, CD8+ and CD4+ cytotoxic T lymphocyte (CTL) activity specific for HIV-1 gp120 or V3 peptides corresponding to the vaccine strains of HIV-1, induction of HLA-B7 and HLA-A2 restricted CD8+CTLs, and induction of HIV-specific DTH responses.
The test immunogen (C4-V3 peptides) is constructed from 4 sequences of the HIV-1 V3 gp120 loop shared by approximately 80% of North American HIV-1 strains. Because of the critical role that this region plays in generating anti-HIV sequences, it is hypothesized that the test immunogen (C4-V3 peptides) will be capable of inducing a broad range of cross-reactive neutralizing antibodies in the majority of recipients.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
The test immunogen (C4-V3 peptides) is constructed from 4 sequences of the HIV-1 V3 gp120 loop shared by approximately 80% of North American HIV-1 strains. Because of the critical role that this region plays in generating anti-HIV sequences, it is hypothesized that the test immunogen (C4-V3 peptides) will be capable of inducing a broad range of cross-reactive neutralizing antibodies in the majority of recipients.
Twenty-eight volunteers are randomized to receive two 0.5 ml injections of C4-43 peptides in IFA or placebo (IFA alone) administered intramuscularly at 0, 1, 6, and 12 months. At least 50% of all volunteers (6 per Groups I and II; 2, Group III) must be HLA-B7 phenotype.
Study Type
Enrollment (Actual)
Phase
- Phase 1
Contacts and Locations
Study Locations
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New York
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Rochester, New York, United States
- Univ. of Rochester AVEG
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Tennessee
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Nashville, Tennessee, United States, 37232
- Vanderbilt Univ. Hosp. AVEG
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Washington
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Seattle, Washington, United States, 98144
- UW - Seattle AVEG
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria
Volunteers must have:
- Negative ELISA for HIV within 8 weeks of immunization.
- Normal history and physical examination.
- Normal chest x-ray within 4 weeks prior to initial immunization.
- Low-risk sexual behavior as defined by AVEG.
Exclusion Criteria
Co-existing Condition:
Volunteers with the following conditions are excluded:
- Medical or psychiatric condition that precludes compliance with the protocol, including recent suicidal ideation or present psychosis.
- Occupational responsibilities which preclude compliance with the protocol.
- Active syphilis (if the serology is documented to be a false positive or due to a remote [more than 6 months] treated infection, the volunteer is eligible).
- Active tuberculosis (volunteers with a positive purified protein derivative and a normal chest x-ray showing no evidence of TB and not requiring isoniazid therapy are eligible).
- Positivity for hepatitis B surface antigen.
Volunteers with the following prior conditions are excluded:
- History of immunodeficiency, chronic illness, malignancy, or autoimmune disease. NOTE: Individuals with a history of cancer are excluded unless there has been surgical excision followed by a sufficient observation period to give a reasonable assurance of cure.
- History of suicide attempts or past psychosis.
- History of anaphylaxis or other serious adverse reactions to vaccines.
- History of serious allergic reaction to any substance, requiring hospitalization or emergent medical care (e.g., Stevens-Johnson syndrome, bronchospasm, or hypotension).
- History of lung disease.
Prior Medication:
Excluded:
- Live attenuated vaccines within 60 days of study. NOTE: Medically indicated subunit or killed vaccines (e.g., influenza, pneumococcal) are not exclusionary, but should be given at least 2 weeks away from HIV immunizations.
- Experimental agents within 30 days prior to study.
- HIV-1 vaccines or placebo, received in a previous HIV vaccine trial.
- Immunosuppressive medications.
Prior Treatment:
Excluded:
- Receipt of blood products or immunoglobulin in the past 6 months.
Risk Behavior: Excluded:
- Alcohol intake greater than or equal to the equivalent of 1 oz of 100 proof per day (4 oz. glass of wine or 12 oz. of beer per day).
- Identifiable higher-risk behavior for HIV infection as determined by screening questions designed to identify risk factors for HIV infection; specific exclusions include a history of injection drug use within the last 12 months prior to enrollment and higher- or immediate-risk sexual behavior as defined by the AVEG (i.e., meeting the criteria for AVEG Risk Groups C and D).
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Masking: Double
Collaborators and Investigators
Investigators
- Study Chair: B Graham
Publications and helpful links
Study record dates
Study Major Dates
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- AVEG 020
- 10570 (Registry Identifier: DAIDS ES Registry Number)
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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