期刊
VACCINE
卷 27, 期 31, 页码 4104-4109出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.vaccine.2009.04.077
关键词
Malaria; Falciparum; Apical membrane antigen 1
资金
- Intramural Division of the National Institutes of Health
- National Institute of Allergy and Infectious Diseases
A Phase 1 study was conducted in 24 malaria naive adults to assess the safety and immunogenicity of the recombinant protein vaccine apical membrane antigen 1-Combination 1 (AMA1-C1)/Alhydrogel with CPG 7909 in two different formulations (phosphate buffer and saline), and given at two different dosing schedules, 0 and 1 month or 0 and 2 months. Both formulations were well tolerated and frequency of local reactions and solicited adverse events was similar among the groups. Peak antibody levels in the groups receiving CPG 7909 in saline were not significantly different than those receiving CPG 7909 in phosphate. Peak antibody levels in the groups vaccinated at a 0,2 month interval were 2.52-fold higher than those vaccinated at a 0,1 month interval (p=0.037, 95% CI 1.03, 4.28). In vitro growth inhibition followed the antibody level: median inhibition was 51% (0,1 month interval) versus 85%(0,2 month interval) in antibody from samples taken 2 weeks post-second vaccination (p = 0.056). Published by Elsevier Ltd.
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