Safety and Immunogenicity Study of tgAAC09, a Gag-PR-RT AAV HIV Vaccine (A001)
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Purpose
The purpose of this study is to determine safety and immunogenicity (ability to induce an immune response) of a novel HIV vaccine based on adeno-associated virus (AAV)
| Condition | Intervention | Phase |
|---|---|---|
|
HIV Infection |
Biological: tgAAC09 |
Phase 1 |
| Study Type: | Interventional |
| Study Design: | Allocation: Randomized Endpoint Classification: Safety Study Intervention Model: Factorial Assignment Masking: Double Blind (Subject, Investigator, Outcomes Assessor) Primary Purpose: Prevention |
| Official Title: | A Phase 1 Randomized, Placebo-controlled, Double-blind Dose-escalation Trial to Evaluate the Safety and Immunogenicity of tgAAC09, a Gag-PR-RT AAV HIV Vaccine |
- Safety of one or two doses of tgAAC09 [ Time Frame: One year ] [ Designated as safety issue: Yes ]Safety of one or two doses of tgAAC09 at 3 dosage levels in a dose-escalating an ddose-optimization study
- Immunogenicity [ Time Frame: up to 6 months post 2nd injection ] [ Designated as safety issue: No ]
- Biodistribution [ Time Frame: upt to 6 montsh post 1st injection ] [ Designated as safety issue: Yes ]
| Enrollment: | 80 |
| Study Start Date: | December 2003 |
| Study Completion Date: | January 2007 |
| Primary Completion Date: | December 2006 (Final data collection date for primary outcome measure) |
| Arms | Assigned Interventions |
|---|---|
|
Active Comparator: 1 AAV-2 HIV Vaccine
64 volunteers receiving AAV-2 HIV vaccine tgAAC09 at 3 dosage levels, dose escalation and dose optimization
|
Biological: tgAAC09
one or 2 doses of AAV-2 HIV vaccine (tgAAC09) at 3 dosage levels, dose escalation and dose optimization
Other Name: AAV-2 HIV Vaccine
|
|
Placebo Comparator: 2
16 volunteers receiving formulation buffer consisting of a buffered salt solution with potassium phosphate, calcium chloride, magnesium chloride, and HEPES
|
Detailed Description:
The need for a vaccine to prevent AIDS and interrupt transmission of HIV is indisputable. To be effective, an HIV vaccine will have to induce cellular and humoral immune responses that are durable and potent. Intra-muscular delivery of HIV genes enclosed within recombinant adeno-associated virus (rAAV) protein capsid has been shown to be a potent inducer of both antibodies and T-cell responses in animal studies. tgAAC09, consisting of single-stranded DNA from Clade C HIV-1 genes for the gag, protease and part of the reverse transcriptase proteins enclosed within a rAAV serotype 2 protein capsid, was developed as one component of a multi-component HIV vaccine. The purpose of this study is to evaluate the safety and immunogenicity of tgAAC09 in healthy, HIV-seronegative volunteers.
Eligibility| Ages Eligible for Study: | 18 Years to 50 Years |
| Genders Eligible for Study: | Both |
| Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Healthy males and females
- Age at least 18 years on the day of screening and no greater than 50 years on the day of vaccination
- Available for follow-up for the planned duration of the study (screening plus 12 months)
- Able to give written informed consent;
- No reported high-risk behavior for HIV (Appendix C), willing to undergo HIV testing and receive results;
- If sexually active, willing to use or have partner use condoms from screening until at least 4 months after the vaccination. Additional means of contraception are permitted and encouraged.
Exclusion Criteria:
- Clinically relevant abnormality on history or examination including history of immunodeficiency or use of immunosuppressive medication in last 6 months;
- A chronic medical condition or concurrent condition, which, in the opinion of the investigator, would make the volunteer unsuitable for the study.
- Any of the following abnormal laboratory parameters that are mild and judged to be clinically significant by the principal investigator or designee, or moderate, severe, or very severe: hematology (hemoglobin, absolute neutrophil count [ANC] absolute lymphocyte count [ALC], absolute CD4 count, platelets); urinalysis, clinical chemistry (total bilirubin, creatinine, AST, ALT). Refer to Appendix D for the grading of these laboratory parameters.
- If female, pregnant or planning a pregnancy within 4 months after receiving the vaccine, or lactating;
- Receipt of live attenuated vaccine within 60 days or other vaccine within 14 days of vaccination;
- Receipt of other experimental HIV vaccine at any time;
- Receipt of blood transfusion or blood products within 6 months of vaccination;
- Participation in another clinical trial of an investigational product currently or within 12 weeks of vaccination, or expected during participation in this study;
- History of severe local or systemic reaction to vaccination or history of allergic reactions to vaccines;
- Confirmed infection with HIV-1 or HIV-2;
- Positive for hepatitis B (surface antigen), hepatitis C antibodies, or active syphilis (confirmed by treponemal test such as TPHA in addition to non-treponemal test such as RPR) or active tuberculosis.
- Unlikely to comply with protocol.
Contacts and Locations| Belgium | |
| SGS Biopharma | |
| Antwerpen, Belgium, B-2060 | |
| St. Pierre University Hospital | |
| Brussels, Belgium, B-1000 | |
| Germany | |
| Univeristy of Bonn | |
| Bonn, Germany, 53127 | |
| University of Hamburg | |
| Hamburg, Germany, 20246 | |
| India | |
| National AIDS Research Institute | |
| Pune, India, 411 026 | |
| Principal Investigator: | Sanjay Mehendale, MD | National AIDS Research Institute |
| Principal Investigator: | Nathan Clumeck, MD | St. Pierre University Hospital |
| Principal Investigator: | Jan van Lunzen, MD | Universitätsklinikum Hamburg-Eppendorf |
More Information
Publications:
Additional publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
| Responsible Party: | International AIDS Vaccine Initiative |
| ClinicalTrials.gov Identifier: | NCT00482027 History of Changes |
| Other Study ID Numbers: | A001 |
| Study First Received: | May 31, 2007 |
| Last Updated: | January 14, 2013 |
| Health Authority: | India: Indian Council of Medical Research India: Institutional Review Board India: Ministry of Health Belgium: Institutional Review Board Germany: Ethics Commission Germany: Paul-Ehrlich-Institut |
Keywords provided by International AIDS Vaccine Initiative:
|
HIV vaccine Adeno-associated virus vactored vaccine HIV-1 subtype C Safety |
Immunogenicity Biodistribution HIV prevention |
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 |
ClinicalTrials.gov processed this record on May 22, 2013