Safety of and Immune System Response to an HIV Vaccine (EP HIV-1090) in HIV Infected Patients
A Single Center Phase I Safety and Immunogenicity Study of Epimmune HIV-1 CTL Epitope-Based DNA Vaccine (EP HIV-1090) for Immunotherapy of HIV-1 Infected Individuals Receiving Highly Active Antiretroviral Therapy (HAART)
Studieöversikt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljerad beskrivning
Significant data support the hypothesis that HIV-specific cytotoxic T lymphocyte (CTL) responses contribute to the control and potential clearance of the virus. Vaccines designed specifically to induce CTL responses are likely to be well suited for treatment of HIV infection. The conceptual basis of the EP HIV-1090 vaccine is the use of highly defined CTL epitopes as the vaccine immunogen. The vaccine is formulated with a water-soluble polymer that stabilizes and protects the DNA and facilitates uptake by cells. Preclinical studies have shown that the vaccine induces strong CTL responses in animal models. This study will evaluate the safety and tolerability of the vaccine and the immune response to the vaccine in HIV-1-infected individuals who are being treated with highly active antiretroviral therapy (HAART) and have a CD4 count of 350 cells/mm3 or more and fully suppressed viral replication on stable HAART.
Each patient will receive a total of four immunizations to be given at Day 0 and at Weeks 4, 8, and 16. Participants will be randomly assigned to receive either vaccine or placebo. Ten patients will be assigned to each dose group; eight will receive active vaccine and two will receive placebo. The injections will be delivered intramuscularly into the deltoid muscle. In addition to undergoing standard safety exams, patients will have blood drawn for use in evaluating the immunogenicity of the vaccine. The treatment duration will be 16 weeks and patient will be followed for safety and immune responses for an additional 24 weeks after they complete vaccination; the total study is estimated to take 18 months.
Studietyp
Studietyp
Inskrivning (Faktisk)
Inskrivning
Fas
Fas
- Fas 1
Kontakter och platser
Studieorter
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-
Colorado
-
Denver, Colorado, Förenta staterna, 80262
- University of Colorado, Health Science Center
-
-
Deltagandekriterier
Urvalskriterier
Urvalskriterier
Åldrar som är berättigade till studier
Tar emot friska volontärer
Kön som är behöriga för studier
Beskrivning
Inclusion Criteria
- Documented HIV-1 infection
- Taking HAART for 6 months or longer and on stable HAART for at least 4 weeks
- Plasma HIV-1 viral load of less than 400 copies/ml for at least 6 months prior to study entry
- CD4 count of 350 cells/mm3 or more within 30 days of entry
Exclusion Criteria
- Immunomodulatory agents
- Prior receipt of experimental HIV vaccines in the 5 years prior to study entry
- Hepatitis B surface antigen or hepatitis C virus antibody positive
Studieplan
Hur är studien utformad?
Designdetaljer
- Primärt syfte: Behandling
- Tilldelning: Randomiserad
- Interventionsmodell: Faktoriell uppgift
- Maskning: Dubbel
Antal vapen
Vapen och interventioner
Deltagargrupp / ArmDeltagargrupp / Arm |
Intervention / BehandlingIntervention / Behandling |
|---|---|
|
Experimentell: 1
Immunization on Day 0 and Weeks 4, 8, and 16
|
Vad mäter studien?
Primära resultatmått
Primära resultatmått
Resultatmått |
Tidsram |
|---|---|
|
Safety and efficacy of four intramuscular doses of EP HIV-1090 to HIV infected participants using highly active antiretroviral therapy (HAART), who have a viral load less than 400
Tidsram: Throughout study
|
Throughout study
|
Sekundära resultatmått
Sekundära resultatmått
Resultatmått |
Tidsram |
|---|---|
|
Peripheral blood CD8 T-cell (CTL) responses to vaccine, compared to placebo
Tidsram: Throughout study
|
Throughout study
|
|
CD4 T-cell count and viral load in patients continuing HAART following vaccination or receipt of placebo
Tidsram: Throughout study
|
Throughout study
|
|
Clinical signs and symptoms and development of AIDS-defining clinical events following vaccination or receipt of placebo in participants who remain on HAART
Tidsram: Throughout study
|
Throughout study
|
Samarbetspartners och utredare
Sponsor
Sponsor
Utredare
Utredare
- Studiestol: Constance Benson, MD, University of California, San Diego
Publikationer och användbara länkar
Studieavstämningsdatum
Studera stora datum
Studiestart
Studiestart
Studieregistreringsdatum
Först inskickad
Först inskickad
Först inskickad som uppfyllde QC-kriterierna
Först inskickad som uppfyllde QC-kriterierna
Första postat (Uppskatta)
Första postat
Uppdateringar av studier
Senaste uppdatering publicerad (Uppskatta)
Senaste uppdatering publicerad
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senaste inskickade uppdateringen som uppfyllde QC-kriterierna
Senast verifierad
Senast verifierad
Mer information
Termer relaterade till denna studie
Ytterligare relevanta MeSH-villkor
Andra studie-ID-nummer
Andra studie-ID-nummer
- P01AI048238-03 (U.S.S. NIH-anslag/kontrakt)
- IPCP 01
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