What progress is being made on the development of a malaria vaccine?

Updated: Apr 26, 2019
  • Author: Thomas E Herchline, MD; Chief Editor: Michael Stuart Bronze, MD  more...
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Answer

Malaria vaccine production and distribution continues to be in the research and development stage. [25, 26, 27] In 2015, European Union (EU) regulators approved the world's first malaria vaccine for use outside the EU among children aged 6 weeks to 17 months. The new vaccine (Mosquirix, GlaxoSmithKline Biologicals), as of April 2019, is entering a large-scale pilot test in Malawi, followed by Kenya and Ghana. The vaccine is to be administered to 360,000 children aged 2 years or younger to evaluate efficacy and feasibility. In trials, the vaccine reduced malaria episodes by 40%. [28] Mosquirix targets P falciparum. It limits the parasite's ability to infect, mature, and multiply in the liver. [29]

Interim phase 3 trial results were reported in 2011 for the malaria vaccine RTS,S/AS01. The results included 6000 African children aged 5-17 months who received the malaria vaccine or a comparator vaccine and were followed for 12 months. The incidence of malaria was 0.44 case per person-year in the RTS,S/AS01 group, compared with 0.83 case per person-year in the comparator vaccine group. The vaccine efficacy rate was calculated to be 55.8%. [41, 42]


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