The Pfs25-Pfs25 conjugate vaccine collaboration was inactivated due clinical hold of an IND filed with FDA, and due to personnel change at NICHD. In order to develop transmission blocking vaccine against P. vivax parasite, LMIV started projects to conjugate Pvs25 and Pvs230, orthologous proteins of transmission blocking vaccine candidates Pfs25 and Pfs230 being evaluated at LMIV, to protein carriers. The conjugates are being evaluate animal studies for immune enhancement and the antisera are being evaluated for transmission blocking activities in mosquitoes.

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Sagara, Issaka; Healy, Sara A; Assadou, Mahamadoun H et al. (2018) Safety and immunogenicity of Pfs25H-EPA/Alhydrogel, a transmission-blocking vaccine against Plasmodium falciparum: a randomised, double-blind, comparator-controlled, dose-escalation study in healthy Malian adults. Lancet Infect Dis 18:969-982
Nixon, Christian P; Nixon, Christina E; Michelow, Ian C et al. (2018) Antibodies to PfsEGXP, An Early Gametocyte Enriched Phosphoprotein, Predict Decreased Plasmodium falciparum Gametocyte Density In Humans. J Infect Dis :
Assadou, Mahamadoun Hamady; Sagara, Issaka; Healy, Sara A et al. (2017) Malaria Infection and Gametocyte Carriage Rates in Preparation for Transmission Blocking Vaccine Trials in Bancoumana, Mali. Am J Trop Med Hyg 97:183-187
Coelho, Camila Henriques; Doritchamou, Justin Yai Alamou; Zaidi, Irfan et al. (2017) Advances in malaria vaccine development: report from the 2017 malaria vaccine symposium. NPJ Vaccines 2:34
Coulibaly, Mamadou B; Gabriel, Erin E; Sinaba, Youssouf et al. (2017) Optimizing Direct Membrane and Direct Skin Feeding Assays for Plasmodium falciparum Transmission-Blocking Vaccine Trials in Bancoumana, Mali. Am J Trop Med Hyg :
MacDonald, Nicholas J; Nguyen, Vu; Shimp, Richard et al. (2016) Structural and Immunological Characterization of Recombinant 6-Cysteine Domains of the Plasmodium falciparum Sexual Stage Protein Pfs230. J Biol Chem 291:19913-22
Wu, Yimin; Sinden, Robert E; Churcher, Thomas S et al. (2015) Development of malaria transmission-blocking vaccines: from concept to product. Adv Parasitol 89:109-52
Hoffman, Stephen L; Vekemans, Johan; Richie, Thomas L et al. (2015) The march toward malaria vaccines. Vaccine 33 Suppl 4:D13-23
Davies, D Huw; Duffy, Patrick; Bodmer, Jean-Luc et al. (2015) Large screen approaches to identify novel malaria vaccine candidates. Vaccine 33:7496-505
Hoffman, Stephen L; Vekemans, Johan; Richie, Thomas L et al. (2015) The March Toward Malaria Vaccines. Am J Prev Med 49:S319-33

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