The first vaccine for malaria, the mosquito-borne disease that kills 400,000 people each year, is set to be deployed more widely after more than three decades of work and about $1 billion in investment.
The vaccine developed by GlaxoSmithKline Plc and its partners won a recommendation from the World Health Organization on Wednesday for use in children in sub-Saharan Africa and other regions with moderate to high transmission. It marks a turning point in a battle against the parasite that causes malaria.
The shot prevented only about four in 10 malaria cases among children who received four doses in a large study, but the injection, along with other measures, could still save hundreds of thousands of lives. Now the focus will shift to getting it to more people following a pilot program in Africa that began in 2019.
“Today’s recommendation offers a glimmer of hope for the continent, which shoulders the heaviest burden of the disease, and we expect many more African children to be protected from malaria and grow into healthy adults,” Matshidiso Moeti, WHO regional director for Africa, said in a statement.
Gavi, the Vaccine Alliance, GSK and MedAccess announced a financing agreement in August to ensure continued production of the vaccine, the first to prove safe and effective in a large, late-stage trial. Gavi said at the time that its board would decide after the WHO decision whether to finance a new malaria vaccination program for countries in sub-Saharan Africa.
GSK, which has developed the shot with non-profit organization PATH, committed to donating as many as 10 million doses for the ongoing pilot, and to supply as many as 15 million doses annually.
A study of 6,000 children, published in August, found that the combination of antimalarial drugs and vaccination lowered hospitalizations and deaths from the disease by about 70% after three years. Early development of the shot began around 1984.
Malaria has been a tricky target for vaccine makers, but researchers are making progress. A shot developed for the disease at the University of Oxford earlier this year became the first to meet a WHO goal of more than 75% efficacy in a mid-stage study. BioNTech SE, meanwhile, is seeking to follow its successful COVID-19 vaccine with one to prevent malaria.
More than 2.3 million vaccine doses have been administered, and a product transfer is underway with Bharat Biotech of India. The company pledged to make doses available for no more than 5% above the cost of production.
Next steps include funding plans for the broader rollout and decisions from countries on whether to adopt the vaccine as part of national malaria control strategies, according to the WHO.
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