A Phase I/II Trial of Vaccine Therapy of HIV-1 Infected Individuals With 50-500 CD4 Cells/mm3
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Purpose
To examine the response of HIV-1 infected patients to vaccination with gp120/HIV-1MN antigen. To determine the effect of antiretroviral therapy on vaccine responsiveness.
Fifty percent of HIV-1 infected individuals remain symptom free for 8-12 years. It has been hypothesized that HIV-specific immune responses are responsible for the period of relative quiescence of viral replication. Recent studies suggest that these immune functions can be augmented by vaccination with HIV-derived antigens.
| Condition | Intervention | Phase |
|---|---|---|
|
HIV Infections |
Biological: rgp120/HIV-1MN Drug: Zidovudine |
Phase 1 |
| Study Type: | Interventional |
| Study Design: | Intervention Model: Parallel Assignment Primary Purpose: Prevention |
| Official Title: | A Phase I/II Trial of Vaccine Therapy of HIV-1 Infected Individuals With 50-500 CD4 Cells/mm3 |
| Estimated Enrollment: | 168 |
| Study Completion Date: | March 1993 |
Fifty percent of HIV-1 infected individuals remain symptom free for 8-12 years. It has been hypothesized that HIV-specific immune responses are responsible for the period of relative quiescence of viral replication. Recent studies suggest that these immune functions can be augmented by vaccination with HIV-derived antigens.
Patients are randomized to receive rgp120/HIV-1MN vaccine or alum adjuvant placebo by intramuscular injection at weeks 0, 4, 8, 12, 16, and 20, with or without daily oral zidovudine (AZT) or their current stable dose of antiretroviral therapy. After completing the primary vaccination series, patients are permitted to continue into an extension phase, in which they receive a booster vaccination at weeks 28, 36, and 44. Patients will be stratified by CD4 count: 350-500, 200-349, and 50-199 cells/mm3. A fourth group with counts of 350-500 cells/mm3 will serve as a pilot group and receive vaccine only.
Eligibility| Ages Eligible for Study: | 13 Years and older |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | No |
Inclusion Criteria
Required immediately prior to study entry:
- A minimum of 2 and a maximum of 12 months of AZT therapy at 500-600 mg/day (does not apply to the pilot group patients receiving vaccine only and to patients with CD4 counts of 50-199 cells/mm3).
Concurrent Medication:
Allowed:
- PCP prophylaxis.
- Rifabutin and clarithromycin (in patients with CD4 counts of 50-199 cells/mm3 only).
- Short-term nonsteroidal anti-inflammatory therapy for acute conditions.
- Short intermittent cycles of acyclovir.
Patients must have:
- HIV infection, with CD4 count of 50-500 cells/mm3.
- No active opportunistic infection (patients with CD4 counts of 50-199 cells/mm3 may have a history of an opportunistic infection).
- Consent of parent, guardian, or person with power of attorney, if less than 18 years of age.
- B-cell lines established in order to be vaccinated.
Exclusion Criteria
Co-existing Condition:
Patients with the following symptoms or conditions are excluded:
- Known or suspected allergies to any vaccine components.
Concurrent Medication:
Excluded:
- Agents with immunosuppressive activity.
- Antiretroviral therapies other than AZT (except in patients with CD4 counts of 50-199 cells/mm3).
- Interferon.
- Parenteral therapies (including SC allergy medications and chemotherapy for Kaposi's sarcoma).
- Steroids.
- Hematopoietins.
Prior Medication:
Excluded within 12 weeks prior to study entry:
- Agents with immunosuppressive activity.
- Antiretroviral therapies other than AZT (except in patients with CD4 counts of 50-349 cells/mm3).
- Interferon.
- Parenteral therapies (including SC allergy medications and chemotherapy for Kaposi's sarcoma).
- Steroids.
- Hematopoietins.
Active drug abuse.
Contacts and Locations| United States, California | |
| UCLA CARE Center CRS | |
| Los Angeles, California, United States, 90095 | |
| Stanford CRS | |
| Palo Alto, California, United States, 943055107 | |
| Ucsf Aids Crs | |
| San Francisco, California, United States, 941102859 | |
| United States, Colorado | |
| University of Colorado Hospital CRS | |
| Aurora, Colorado, United States, 80262 | |
| United States, Massachusetts | |
| Massachusetts General Hospital ACTG CRS | |
| Boston, Massachusetts, United States, 02114 | |
| Beth Israel Deaconess - East Campus A0102 CRS | |
| Boston, Massachusetts, United States, 02215 | |
| Beth Israel Deaconess Med. Ctr., ACTG CRS | |
| Boston, Massachusetts, United States, 02215 | |
| Bmc Actg Crs | |
| Boston, Massachusetts, United States, 02118 | |
| United States, New York | |
| NY Univ. HIV/AIDS CRS | |
| New York, New York, United States, 10016 | |
| United States, Washington | |
| University of Washington AIDS CRS | |
| Seattle, Washington, United States, 981224304 | |
| Study Chair: | Schooley RT | |
| Study Chair: | Walker B |
More Information
Additional Information:
Publications:
| Responsible Party: | National Institute of Allergy and Infectious Diseases (NIAID) |
| ClinicalTrials.gov Identifier: | NCT00000755 History of Changes |
| Other Study ID Numbers: | ACTG 209, 11186 |
| Study First Received: | November 2, 1999 |
| Last Updated: | May 22, 2012 |
| Health Authority: | United States: Federal Government |
Keywords provided by National Institute of Allergy and Infectious Diseases (NIAID):
|
Vaccines, Synthetic HIV-1 Acquired Immunodeficiency Syndrome AIDS-Related Complex |
Zidovudine HIV Envelope Protein gp120 AIDS Vaccines HIV Therapeutic 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 Zidovudine |
Antimetabolites Molecular Mechanisms of Pharmacological Action Pharmacologic Actions Reverse Transcriptase Inhibitors Nucleic Acid Synthesis Inhibitors Enzyme Inhibitors Anti-Retroviral Agents Antiviral Agents Anti-Infective Agents Therapeutic Uses Anti-HIV Agents |
ClinicalTrials.gov processed this record on June 18, 2013