Sustained efficacy of the RTS,S/AS01E malaria vaccine over 50 months of follow-up when used in full-dose or fractional-dose regimens in young children in Ghana and Kenya: final results from an open-label, phase 2b, randomised controlled trial.

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Title: Sustained efficacy of the RTS,S/AS01E malaria vaccine over 50 months of follow-up when used in full-dose or fractional-dose regimens in young children in Ghana and Kenya: final results from an open-label, phase 2b, randomised controlled trial.
Authors: Osei-Tutu L; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana., Kariuki SK; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya., Lee CK; PATH's Center for Vaccine Innovation and Access, Washington, DC, USA., Fabre R; GSK, Wavre, Belgium., Bii DK; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya., Adjei S; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana., Oneko M; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya., Attobrah Sarfo MA; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana., Ockenhouse CF; PATH's Center for Vaccine Innovation and Access, Washington, DC, USA., Schuerman L; GSK, Wavre, Belgium., Buabeng PBY; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana., Bakari A; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana., Atieno C; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya., Kotoh-Mortty MF; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana., Otieno K; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya., Ntiamoah Y; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana., Sang T; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya., Bollaerts A; GSK, Wavre, Belgium., Westercamp N; Malaria Branch, Division of Parasitic Diseases and Malaria, National Center for Emerging Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA., Ansong D; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana., Agbenyega T; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana., Samuels AM; Malaria Branch, Division of Parasitic Diseases and Malaria, National Center for Emerging Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA; Malaria Branch, Division of Parasitic Diseases and Malaria, National Center for Emerging Zoonotic Infectious Diseases, US Centers for Disease Control and Prevention, Kisumu, Kenya., Ofori-Anyinam O; GSK, Wavre, Belgium. Electronic address: opokua.ofori-anyinam@gsk.com.
Corporate Authors: RTS,S study group
Source: The Lancet. Global health [Lancet Glob Health] 2025 Oct; Vol. 13 (10), pp. e1723-e1736.
Publication Type: Journal Article; Randomized Controlled Trial; Clinical Trial, Phase II; Multicenter Study
Journal Info: Publisher: Elsevier Ltd Country of Publication: England NLM ID: 101613665 Publication Model: Print Cited Medium: Internet ISSN: 2214-109X (Electronic) Linking ISSN: 2214109X NLM ISO Abbreviation: Lancet Glob Health Subsets: MEDLINE
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  Data: Sustained efficacy of the RTS,S/AS01<subscript>E</subscript> malaria vaccine over 50 months of follow-up when used in full-dose or fractional-dose regimens in young children in Ghana and Kenya: final results from an open-label, phase 2b, randomised controlled trial.
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  Data: <searchLink fieldCode="AU" term="%22Osei-Tutu+L%22">Osei-Tutu L</searchLink>; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana.<br /><searchLink fieldCode="AU" term="%22Kariuki+SK%22">Kariuki SK</searchLink>; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya.<br /><searchLink fieldCode="AU" term="%22Lee+CK%22">Lee CK</searchLink>; PATH's Center for Vaccine Innovation and Access, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Fabre+R%22">Fabre R</searchLink>; GSK, Wavre, Belgium.<br /><searchLink fieldCode="AU" term="%22Bii+DK%22">Bii DK</searchLink>; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya.<br /><searchLink fieldCode="AU" term="%22Adjei+S%22">Adjei S</searchLink>; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana.<br /><searchLink fieldCode="AU" term="%22Oneko+M%22">Oneko M</searchLink>; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya.<br /><searchLink fieldCode="AU" term="%22Attobrah+Sarfo+MA%22">Attobrah Sarfo MA</searchLink>; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana.<br /><searchLink fieldCode="AU" term="%22Ockenhouse+CF%22">Ockenhouse CF</searchLink>; PATH's Center for Vaccine Innovation and Access, Washington, DC, USA.<br /><searchLink fieldCode="AU" term="%22Schuerman+L%22">Schuerman L</searchLink>; GSK, Wavre, Belgium.<br /><searchLink fieldCode="AU" term="%22Buabeng+PBY%22">Buabeng PBY</searchLink>; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana.<br /><searchLink fieldCode="AU" term="%22Bakari+A%22">Bakari A</searchLink>; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana.<br /><searchLink fieldCode="AU" term="%22Atieno+C%22">Atieno C</searchLink>; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya.<br /><searchLink fieldCode="AU" term="%22Kotoh-Mortty+MF%22">Kotoh-Mortty MF</searchLink>; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana.<br /><searchLink fieldCode="AU" term="%22Otieno+K%22">Otieno K</searchLink>; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya.<br /><searchLink fieldCode="AU" term="%22Ntiamoah+Y%22">Ntiamoah Y</searchLink>; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana.<br /><searchLink fieldCode="AU" term="%22Sang+T%22">Sang T</searchLink>; Centre for Global Health Research, Kenya Medical Research Institute, Kisumu, Kenya.<br /><searchLink fieldCode="AU" term="%22Bollaerts+A%22">Bollaerts A</searchLink>; GSK, Wavre, Belgium.<br /><searchLink fieldCode="AU" term="%22Westercamp+N%22">Westercamp N</searchLink>; Malaria Branch, Division of Parasitic Diseases and Malaria, National Center for Emerging Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA.<br /><searchLink fieldCode="AU" term="%22Ansong+D%22">Ansong D</searchLink>; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana.<br /><searchLink fieldCode="AU" term="%22Agbenyega+T%22">Agbenyega T</searchLink>; Kwame Nkrumah University of Science and Technology/Agogo Presbyterian Hospital, Agogo, Asante Akyem, Ghana.<br /><searchLink fieldCode="AU" term="%22Samuels+AM%22">Samuels AM</searchLink>; Malaria Branch, Division of Parasitic Diseases and Malaria, National Center for Emerging Zoonotic Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, GA, USA; Malaria Branch, Division of Parasitic Diseases and Malaria, National Center for Emerging Zoonotic Infectious Diseases, US Centers for Disease Control and Prevention, Kisumu, Kenya.<br /><searchLink fieldCode="AU" term="%22Ofori-Anyinam+O%22">Ofori-Anyinam O</searchLink>; GSK, Wavre, Belgium. Electronic address: opokua.ofori-anyinam@gsk.com.
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  Data: <i>Publisher: </i><searchLink fieldCode="PB" term="%22Elsevier+Ltd%22">Elsevier Ltd </searchLink><i>Country of Publication: </i>England <i>NLM ID: </i>101613665 <i>Publication Model: </i>Print <i>Cited Medium: </i>Internet <i>ISSN: </i>2214-109X (Electronic) <i>Linking ISSN: </i><searchLink fieldCode="IS" term="%222214109X%22">2214109X </searchLink><i>NLM ISO Abbreviation: </i>Lancet Glob Health <i>Subsets: </i>MEDLINE
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