Efficacy of RTS,S/AS01 Vaccine Against Episodes of Malaria Due to P. Falciparum Infection in Children.

Summary

This phase IIb trial is being done to find out if the RTS,S/AS01 vaccine helps to prevent children from falling ill with malaria and to evaluate vaccine safety. The Protocol Posting has been updated in order to comply with the FDA Amendment Act, Sep 2007.

Timeline

Start

2007-01-03

Primary completion

2008-08-15

Completion

2008-11-11

Outcome

Met primary endpoint

registry analysis (other test); GSK257049 Group vs Rabipur Group; p <0.001; Vaccine Efficacy 52.9 (95% CI 28.1 to 69.1) NCT00380393 ↗

Publications

• Background Bejon P, Lusingu J, Olotu A, Leach A, Lievens M, Vekemans J, Mshamu S, Lang T, Gould J, Dubois MC, Demoitie MA, Stallaert JF, Vansadia P, Carter T, Njuguna P, Awuondo KO, Malabeja A, Abdul O, Gesase S, Mturi N, Drakeley CJ, Savarese B, Villafana T, Ballou WR, Cohen J, Riley EM, Lemnge MM, Marsh K, von Seidlein L. Efficacy of RTS,S/AS01E vaccine against malaria in children 5 to 17 months of age. N Engl J Med. 2008 Dec 11;359(24):2521-32. doi: 10.1056/NEJMoa0807381. Epub 2008 Dec 8.
• Background Lang TA, Gould J, von Seidlein L, Lusingu JP, Mshamu S, Ismael S, Liheluka E, Kamuya D, Mwachiro D, Olotu A, Njuguna P, Bejon P, Marsh V, Molyneux C. Approaching the community about screening children for a multicentre malaria vaccine trial. Int Health. 2012 Mar;4(1):47-54. doi: 10.1016/j.inhe.2011.10.003.
• Background Lusingu J, Olotu A, Leach A, Lievens M, Vekemans J, Olivier A, Benns S, Olomi R, Msham S, Lang T, Gould J, Hallez K, Guerra Y, Njuguna P, Awuondo KO, Malabeja A, Abdul O, Gesase S, Dekker D, Malle L, Ismael S, Mturi N, Drakeley CJ, Savarese B, Villafana T, Ballou WR, Cohen J, Riley EM, Lemnge MM, Marsh K, Bejon P, von Seidlein L. Safety of the malaria vaccine candidate, RTS,S/AS01E in 5 to 17 month old Kenyan and Tanzanian Children. PLoS One. 2010 Nov 29;5(11):e14090. doi: 10.1371/journal.pone.0014090.
• Background Olotu A, Lusingu J, Leach A, Lievens M, Vekemans J, Msham S, Lang T, Gould J, Dubois MC, Jongert E, Vansadia P, Carter T, Njuguna P, Awuondo KO, Malabeja A, Abdul O, Gesase S, Mturi N, Drakeley CJ, Savarese B, Villafana T, Lapierre D, Ballou WR, Cohen J, Lemnge MM, Peshu N, Marsh K, Riley EM, von Seidlein L, Bejon P. Efficacy of RTS,S/AS01E malaria vaccine and exploratory analysis on anti-circumsporozoite antibody titres and protection in children aged 5-17 months in Kenya and Tanzania: a randomised controlled trial. Lancet Infect Dis. 2011 Feb;11(2):102-9. doi: 10.1016/S1473-3099(10)70262-0. Epub 2011 Jan 13.
• Olotu A, Clement F, Jongert E, Vekemans J, Njuguna P, Ndungu FM, Marsh K, Leroux-Roels G, Bejon P. Avidity of anti-circumsporozoite antibodies following vaccination with RTS,S/AS01E in young children. PLoS One. 2014 Dec 15;9(12):e115126. doi: 10.1371/journal.pone.0115126. eCollection 2014.
• Warimwe GM, Fletcher HA, Olotu A, Agnandji ST, Hill AV, Marsh K, Bejon P. Peripheral blood monocyte-to-lymphocyte ratio at study enrollment predicts efficacy of the RTS,S malaria vaccine: analysis of pooled phase II clinical trial data. BMC Med. 2013 Aug 21;11:184. doi: 10.1186/1741-7015-11-184.
• Horowitz A, Hafalla JC, King E, Lusingu J, Dekker D, Leach A, Moris P, Cohen J, Vekemans J, Villafana T, Corran PH, Bejon P, Drakeley CJ, von Seidlein L, Riley EM. Antigen-specific IL-2 secretion correlates with NK cell responses after immunization of Tanzanian children with the RTS,S/AS01 malaria vaccine. J Immunol. 2012 May 15;188(10):5054-62. doi: 10.4049/jimmunol.1102710. Epub 2012 Apr 13.

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