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Immune Responses in HIV-Positive Patients Receiving an Anti-HIV Drug Combination When Given the HIV Vaccines Remune and vCP1452

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.
ClinicalTrials.gov Identifier: NCT00006495
Recruitment Status : Completed
First Posted : August 31, 2001
Last Update Posted : November 1, 2021
Information provided by (Responsible Party):
National Institute of Allergy and Infectious Diseases (NIAID)

Brief Summary:

The purpose of this study is to see how the vaccines Remune (HIV-1 immunogen) and vCP1452 affect immune responses in patients who also are taking anti-HIV medications. This study also will see if these vaccines are safe to use either alone or in combination.

Treatment with anti-HIV drugs does not always keep HIV viral load low and under control. This study will look at the effect of the HIV vaccine, vCP1452, on the immune response and how it works in combination with Remune. Information about immune responses and the safety of these vaccines in HIV-positive patients will be gathered.

Condition or disease Intervention/treatment Phase
HIV Infections Biological: ALVAC(2)120(B,MN)GNP (vCP1452) Biological: HIV-1 Immunogen Phase 1

Detailed Description:

Human viral infections are controlled by the immune system. However, the multiple immune responses provoked by HIV infection do not control the infection in most people. The ability to specifically augment CTL responses with an immunotherapeutic vaccine may strengthen the containment of viremia afforded by antiretroviral agents and thereby extend the durability of viral suppression. The current study will attempt to determine whether therapeutic immunizations with HIV-1 immunogen and vCP1452 are safe and able to augment HIV-1 specific immune responses for a longer period of time than antiretroviral therapy alone, and if both agents are better than either by itself.

Patients currently enrolled in A5058s under A5057/A5058s Versions 1.0 and 2.0 will be given the option of continuing their participation in A5058s through this independent study. Rollover patients register to Step II and begin treatment/evaluations on A5058s at the same study week that they were on in Versions 1.0 and 2.0 of A5057/A5058s. New patients enter Step I and will not need to register to Step II. Step I patients are stratified on the basis of HIV viral load, antiretroviral history, and current antiretroviral treatment. Within each stratum, patients are randomized to 1 of the following 4 treatment arms: HIV-1 immunogen plus ALVAC placebo, HIV-1 immunogen placebo plus ALVAC placebo, HIV-1 immunogen placebo plus vCP1452, or HIV-1 immunogen plus vCP1452. Patients receive an injection at study entry and every 12 weeks thereafter until the end of the study, a minimum of 2 years. Step II patients receive the same treatment as patients in Step I. Patients are evaluated every 12 weeks for clinical, immunologic, and virologic parameters. Patients continue taking the antiretroviral treatment that they were taking at study entry until reaching a virologic relapse as defined in the protocol. If no response to a new drug regimen occurs, or the antiretroviral therapy is not changed, immunizations may continue as long as the viral load remains below 5,000 copies/ml.

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Study Type : Interventional  (Clinical Trial)
Enrollment : 80 participants
Masking: Double
Primary Purpose: Treatment
Official Title: Augmentation of HIV-Specific Helper and CTL Responses Through Therapeutic Vaccination in Individuals Receiving Potent Suppressive Antiretroviral Therapies
Actual Study Completion Date : September 2004

Resource links provided by the National Library of Medicine

MedlinePlus related topics: HIV/AIDS Vaccines

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria

Patients may be eligible for Step I of this study if they:

  • Are at least 18 years old.
  • Are HIV-infected.
  • Have been on stable anti-HIV combination drug therapy for at least 12 weeks prior to screening for viral load and are willing to continue the same treatment during the study unless they experience side effects from the drugs and have a viral load increase.
  • Have a viral load lower than 50 copies/ml at screening. Patients must have had a viral load below 500 copies/ml for at least 12 weeks prior to screening.
  • Have a CD4 T cell count of at least 300 cells/mm3 within 30 days prior to study entry.
  • Agree to practice acceptable methods of birth control, including male and female condoms, a diaphragm, or an intra-uterine device (IUD), while on study treatment and for 12 weeks after study treatment is discontinued.
  • Patients may be eligible for Step II of this study if they:
  • Are enrolled in A5058s under A5057/A5058s, Versions 1.0 and 2.0.

Exclusion Criteria

Patients will not be eligible for Step I of this study if they:

  • Are pregnant or breast-feeding.
  • Have an acute infection requiring antibiotics, an outbreak of a herpes virus, or other illness or surgery within 30 days prior to entry.
  • Have a long-term infection other than HIV.
  • Have cancer that may require systemic treatment.
  • Have had lymph node irradiation.
  • Have received any HIV vaccine.
  • Have used GM-CSF, G-CSF, M-CSF, IFN, IL-2, or similar medication within 30 days prior to entry.
  • Have used drugs affecting the immune system within 30 days prior to entry, or have an illness that may require use of these drugs.
  • Have had immunizations within 30 days prior to study entry.
  • Have received hydroxyurea within 30 days prior to study entry.
  • Are allergic to egg proteins or neomycin or have had other serious allergic reactions.
  • Work in close contact with canaries, or react to canarypox. Persons with a pet canary are not excluded.
  • Have had 2 viral load measurements in a row taken at least 14 days apart that were 500 copies/ml or higher in the 12 weeks prior to screening.

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): NCT00006495

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United States, California
Los Angeles, California, United States, 90095
United States, Florida
Univ. of Miami AIDS CRS
Miami, Florida, United States, 331361013
United States, Maryland
Johns Hopkins Adult AIDS CRS
Baltimore, Maryland, United States, 21287
United States, Massachusetts
Massachusetts General Hospital ACTG CRS
Boston, Massachusetts, United States, 02114
Beth Israel Deaconess Med. Ctr., ACTG CRS
Boston, Massachusetts, United States, 02215
United States, New York
Univ. of Rochester ACTG CRS
Rochester, New York, United States, 14642
United States, North Carolina
Unc Aids Crs
Chapel Hill, North Carolina, United States, 275997215
United States, Pennsylvania
Hosp. of the Univ. of Pennsylvania CRS
Philadelphia, Pennsylvania, United States, 19104
United States, Texas
Univ. of Texas Medical Branch, ACTU
Galveston, Texas, United States, 775550435
Sponsors and Collaborators
National Institute of Allergy and Infectious Diseases (NIAID)
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Study Chair: Spyros Kalams
Study Chair: Fred Valentine
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Responsible Party: National Institute of Allergy and Infectious Diseases (NIAID)
ClinicalTrials.gov Identifier: NCT00006495    
Other Study ID Numbers: A5058s
10674 ( Registry Identifier: DAIDS ES Registry Number )
ACTG A5058s
AACTG A5058s
First Posted: August 31, 2001    Key Record Dates
Last Update Posted: November 1, 2021
Last Verified: October 2021
Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):
T-Lymphocytes, Helper-Inducer
AIDS Vaccines
RNA, Viral
HIV Core Protein p24
T-Lymphocytes, Cytotoxic
Anti-HIV Agents
HIV Therapeutic Vaccine
Additional relevant MeSH terms:
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HIV Infections
Blood-Borne Infections
Communicable Diseases
Sexually Transmitted Diseases, Viral
Sexually Transmitted Diseases
Lentivirus Infections
Retroviridae Infections
RNA Virus Infections
Virus Diseases
Genital Diseases
Urogenital Diseases
Immunologic Deficiency Syndromes
Immune System Diseases