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Safety and immunoge...
Safety and immunogenicity of a malaria vaccine, Plasmodium falciparum AMA-1/MSP-1 chimeric protein formulated in montanide ISA 720 in healthy adults
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- Hu, Jinhong (författare)
- Changhai Hospital, Second Military Medical University, Shanghai, China
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- Chen, Zhihui (författare)
- Changhai Hospital, Second Military Medical University, Shanghai, China
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- Gu, Jun (författare)
- Changhai Hospital, Second Military Medical University, Shanghai, China
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- Wan, Mobin (författare)
- Changhai Hospital, Second Military Medical University, Shanghai, China
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- Shen, Qian (författare)
- Changhai Hospital, Second Military Medical University, Shanghai, China
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- Kieny, Marie-Paule (författare)
- Initiative for Vaccine Research, World Health Organization, Geneva, Switzerland
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- He, Jia (författare)
- Department of Statistics, Second Military Medical University, Shanghai, China
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- Li, Zhen (författare)
- Changhai Hospital, Second Military Medical University, Shanghai, China
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- Zhang, Qingfeng (författare)
- Department of Pathogen Biology and State Key Laboratory of Medical Immunology, Second Military Medical University, Shanghai, China
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- Reed, Zarifah Hussain (författare)
- Initiative for Vaccine Research, World Health Organization, Geneva, Switzerland
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- Zhu, Yongmei (författare)
- Changhai Hospital, Second Military Medical University, Shanghai, China
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- Li, Wenjie (författare)
- Changhai Hospital, Second Military Medical University, Shanghai, China
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- Cao, Yang, Associate Professor, 1972- (författare)
- Department of Statistics, Second Military Medical University, Shanghai, China
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- Qu, Li (författare)
- Department of Pathogen Biology and State Key Laboratory of Medical Immunology, Second Military Medical University, Shanghai, China
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- Cao, Zhifang (författare)
- Shanghai Wanxing Biopharmaceuticals Co., Ltd., Shanghai, China
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- Wang, Qiang (författare)
- Shanghai Wanxing Biopharmaceuticals Co., Ltd., Shanghai, China
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- Liu, Haitao (författare)
- Shanghai Wanxing Biopharmaceuticals Co., Ltd., Shanghai, China
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- Pan, Xuegong (författare)
- Shanghai Wanxing Biopharmaceuticals Co., Ltd., Shanghai, China
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- Huang, Xiudong (författare)
- Shanghai Wanxing Biopharmaceuticals Co., Ltd., Shanghai, China
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- Zhang, Dongmei (författare)
- Department of Pathogen Biology and State Key Laboratory of Medical Immunology, Second Military Medical University, Shanghai, China
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- Xue, Xiangyang (författare)
- Department of Pathogen Biology and State Key Laboratory of Medical Immunology, Second Military Medical University, Shanghai, China
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- Pan, Weiqing (författare)
- Department of Pathogen Biology and State Key Laboratory of Medical Immunology, Second Military Medical University, Shanghai, China
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(creator_code:org_t)
- 2008-04-09
- 2008
- Engelska.
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Ingår i: PLOS ONE. - : PLOS. - 1932-6203. ; 3:4
- Relaterad länk:
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https://doi.org/10.1...
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https://journals.plo...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- BACKGROUND: The P. falciparum chimeric protein 2.9 (PfCP-2.9) consisting of the sequences of MSP1-19 and AMA-1 (III) is a malaria vaccine candidate that was found to induce inhibitory antibodies in rabbits and monkeys. This was a phase I randomized, single-blind, placebo-controlled, dose-escalation study to evaluate the safety and immunogenicity of the PfCP-2.9 formulated with a novel adjuvant Montanide ISA720. Fifty-two subjects were randomly assigned to 4 dose groups of 10 participants, each receiving the test vaccine of 20, 50, 100, or 200 microg respectively, and 1 placebo group of 12 participants receiving the adjuvant only.METHODS AND FINDINGS: The vaccine formulation was shown to be safe and well-tolerated, and none of the participants withdrew. The total incidence of local adverse events (AEs) was 75%, distributed among 58% of the placebo group and 80% of those vaccinated. Among the vaccinated, 65% had events that were mild and 15% experienced moderate AEs. Almost all systemic adverse reactions observed in this study were graded as mild and required no therapy. The participants receiving the test vaccine developed detectable antibody responses which were boosted by the repeated vaccinations. Sixty percent of the vaccinated participants had high ELISA titers (>1:10,000) of antigen-specific antibodies which could also recognize native parasite proteins in an immunofluorescence assay (IFA).CONCLUSION: This study is the first clinical trial for this candidate and builds on previous investigations supporting PfCP-2.9/ISA720 as a promising blood-stage malaria vaccine. Results demonstrate safety, tolerability (particularly at the lower doses tested) and immunogenicity of the formulation. Further clinical development is ongoing to explore optimizing the dose and schedule of the formulation to decrease reactogenicity without compromising immunogenicity.TRIAL REGISTRATION: Chinese State Food and Drug Administration (SFDA) 2002SL0046; Controlled-Trials.com ISRCTN66850051 [66850051].
Ämnesord
- MEDICIN OCH HÄLSOVETENSKAP -- Medicinsk bioteknologi -- Biomedicinsk laboratorievetenskap/teknologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Medical Biotechnology -- Biomedical Laboratory Science/Technology (hsv//eng)
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Hu, Jinhong
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Chen, Zhihui
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Gu, Jun
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Wan, Mobin
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Shen, Qian
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Kieny, Marie-Pau ...
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He, Jia
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Li, Zhen
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Zhang, Qingfeng
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Reed, Zarifah Hu ...
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Zhu, Yongmei
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Li, Wenjie
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Cao, Yang, Assoc ...
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Qu, Li
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Cao, Zhifang
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Wang, Qiang
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Liu, Haitao
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Pan, Xuegong
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Huang, Xiudong
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Zhang, Dongmei
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Xue, Xiangyang
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Pan, Weiqing
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