HIV-1 Infection
Conditions
Keywords
HIV-1, HIV, immunotherapy, active immunotherapy, vaccine, virulence, innate immunity, NK cells
Brief summary
The purpose of this trial is to evaluate the safety and immunogenicity of the therapeutic vaccine candidate VAC-3S in HIV-1 infected patients under AntiRetroviral Therapy (ART) with undetectable viral loads.
Interventions
Comparison of different doses of vaccine. Liquid form Volume: 0.5 mL - 2 X 0.5 mL for double-dose arm 3 vaccinations at one month apart
Comparison with experimental vaccine
Sponsors
Study design
Eligibility
Inclusion criteria
* HIV-1 infected patient * Age between 18 and 55 years * ART (AntiRetroviral Therapy) initiation 1 year ago * Plasma HIV RNA below 50 copies per ml on three sequential occasions including V-1 in the past 12 months * CD4 T cell count above or equal to 200 cells per mm3, * Nadir CD4 T cell count above or equal to 100 cells per mm3, * Contraception in women with child-bearing potential
Exclusion criteria
* Any ART change within a month preceding screening. * Chronic active liver disease, HIV-Hepatitis Coinfection. * Immunotherapy in the past year, immunosuppressive treatment within the past month. * History of auto-immune disease
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Number of Study Participants Who Tolerated three vaccinations with VAC-3S at 4-weeks apart Determined by Safety Parameter Changes According to the DAIDS (Division of Acquired Immunodeficiency Syndrome) Adverse Events (AE) Grading Table. | from D0 to week 24 | Safety parameters include adverse events, vital signs, physical examinations, laboratory tests (hematology, blood chemistry, viral load). |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Anti-3S antibody titers | from D0 to week 60 | — |
| Number of Study Participants Who Tolerated three vaccinations with VAC-3S at 4-weeks apart Determined by Safety Parameter Changes According to the DAIDS (Division of Acquired Immunodeficiency Syndrome) Adverse Events (AE) Grading Table. | from week 24 to week 60 | Safety parameters include adverse events, vital signs, physical examinations, laboratory tests (hematology, blood chemistry, viral load). |
| NKp44L expression on the surface of CD4+ T lymphocytes | from D0 to week 60 | — |
| Markers of progression to AIDS. Markers include CD4+ cell count, viral load, and phenotypic markers of lymphocyte differentiation and activation. | from D0 to week 60 | — |
Countries
France