Evaluation of the Safety of and Immune Response to an HIV Vaccine in Healthy Adults
A Randomised, Placebo-Controlled, Double-Blind, Phase I/IIa Clinical Trial to Evaluate the Safety and Immunogenicity of a Candidate Prophylactic DNA Prime-rFPV Boost HIV Vaccination Strategy
調査の概要
詳細な説明
The purpose of this study is to examine the safety and immunogenicity of a candidate vaccine strategy for HIV prophylaxis using a DNA-prime plus recombinant fowlpox boost. The DNA plasmid and fowlpox vector contain HIV genes. However, these vaccines contain only some HIV genes and cannot themselves cause HIV or AIDS.
Eligible volunteers at low risk of HIV infection will be randomized to receive either active vaccine or placebo injections at Day 0, Week 4, and Week 8. Intensive immunologic and safety monitoring will be done during the first 16 weeks of the study. Follow-up will continue to Week 52.
研究の種類
入学
段階
- フェーズ2
- フェーズ 1
連絡先と場所
研究場所
-
-
New South Wales
-
Sydney、New South Wales、オーストラリア、2010
- National Centre in HIV Epidemiology and Clinical Research
-
-
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria
- HIV negative.
- Acceptable methods of contraception.
Exclusion Criteria
- Identifiable risk behavior for HIV infection, including: sexual partners of HIV positive people, sexual intercourse with a partner of unknown HIV status if that partner is reported to be at higher risk for HIV infection, gay men reporting any unprotected anal intercourse with partners of unknown status in the 12 months preceding study entry, individuals diagnosed with a sexually transmissible infection (STI) in the 12 months preceding entry that may have been acquired through anal or vaginal intercourse, individuals reporting sharing of injecting equipment in the last 12 months.
- HIV candidate vaccines in a previous HIV vaccine trial.
- Live attenuated vaccines within 60 days prior to entering the study. Whole killed, toxoid, or sub-unit vaccines (e.g., influenza, pneumococcal, tetanus, and hepatitis B) are not exclusionary within 4 weeks prior to the scheduled experimental HIV vaccines.
- Hypersensitivity to egg products or a known history of anaphylaxis or any other serious adverse reactions to vaccination.
- History of serious allergic reaction requiring hospitalization or emergency medical care (e.g., Stevens-Johnson syndrome, bronchospasm, or hypotension) to any substance.
- Significant illness requiring immunomodulatory or cytotoxic therapy.
- History of cancer unless there is evidence of surgical excision followed by a sufficient observation period to give a reasonable assurance of cure.
- Blood products or immunoglobulins within 6 months prior to entering the study.
- Experimental or investigational agents within 30 days prior to entering the study.
- Recreational and/or therapeutic drug use that might compromise the study participant's safety.
- Medical or psychiatric condition or occupational responsibilities that preclude compliance with the protocol.
- Pregnant or lactating women.
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:防止
- 割り当て:ランダム化
- 介入モデル:並列代入
- マスキング:ダブル
この研究は何を測定していますか?
主要な結果の測定
結果測定 |
|---|
|
Safety and adverse events among the two vaccination groups
|
|
lymphoproliferative (LP) responses to HIV antigens, as assessed by LP assays at Week 9
|
|
CD8+ T cell responses to HIV antigens, as assessed by ELIspot assay of interferon gamma (IFN-g) secreting cells at Week 9
|
二次結果の測定
結果測定 |
|---|
|
Proportion of patients with positive LP assay and ELISPOT assay responses
|
|
intracellular cytokine staining (ICS) of IFN-g/CD69 and flow cytometry
|
|
51-Cr release cytotoxic T cell lymphocyte assay
|
|
HLA class I tetramer analyses
|
|
anti-HIV gag, pol and env antibodies, as assessed by ELISA and Western blot
|
|
behavioral changes in study participants
|
協力者と研究者
捜査官
- スタディディレクター:David A Cooper, MD, DSc、National Centre in HIV Epidemiology and Clinical Research, University of New South Wales
出版物と役立つリンク
便利なリンク
研究記録日
主要日程の研究
研究開始
研究の完了
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- N01-AI05395
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。