Gavi,
the Vaccine Alliance and the Global Fund to Fight AIDS, Tuberculosis
and Malaria today welcomed news that the European Medicines Agency has
offered a positive scientific opinion on malaria candidate vaccine
RTS,S.
The
decision marks a further significant step towards the availability of a
malaria vaccine. Gavi and the Global Fund will now await
recommendations from the World Health Organization’s Strategic Advisory
Group of Experts and the Malaria Policy Advisory Committee before
deciding if and how to best support the use of the vaccine.
“There
is still a long way to go but it is important not to underestimate the
significance of today’s decision,” said Gavi CEO Dr Seth Berkley. “For
the first time a regulator has expressed positive scientific opinion on a
vaccine against a parasite. Today marks a step forward for RTS,S but
also for all potential vaccines against parasites.”
“We
are cautiously optimistic about this vaccine candidate, and note
today’s opinion from the European Medicines Agency with interest,” said
Dr. Mark Dybul, Executive Director of the Global Fund. “Malaria
continues to impose a heavy burden in some of the world’s most difficult
corners. It could be enormously beneficial to have another tool to
fight the disease.”
Tremendous
progress has been made against malaria. The Millennium Development Goal
of reversing the rate of malaria has been met and the rate of incidence
is declining worldwide. In 55 countries, there has been a 75 per cent
reduction in deaths. Globally, the number of deaths fell from over 1
million in 200o to 584,000 in 2013.
Phase
III trial results released in April 2015 suggested RTS,S malaria
vaccine could eventually have a role alongside mosquito nets, indoor
spraying, prompt diagnostic testing, effective anti-malarial medicines
and other tools in further reducing the disease’s impact among children
in sub-Saharan Africa. The phase III trial of the RTS,S malaria vaccine
candidate showed a 54 percent reduction in cases of clinical malaria
over the first year of follow-up and a 36 percent reduction in clinical
malaria over a 48 month period among children vaccinated between 5-17
months old who received four doses of the vaccine. On average across the
trial sites, more than 1,700 cases of clinical malaria were averted per
1,000 children vaccinated.
This
means that in places with high malaria burden, the vaccine averted
several episodes of malaria per child per year. For infants who were
vaccinated aged 6-12 weeks, the reduction in clinical malaria was 26
percent over a follow up period of 38 months. The five year trial
concluded in January and involved 15,459 children and infants. The trial
was conducted across eleven research centres in seven African countries
in partnership with GSK and the PATH Malaria Vaccine Initiative.
Gavi
and the Global Fund are continuing to work together to plan for the
possible use of a malaria vaccine, if recommended by WHO and if the Gavi
and Global Fund boards decide to support the vaccine in conjunction
with other proven malaria interventions, as part of an integrated
approach towards malaria control. Both organisations are working in
close coordination with the Global Malaria Programme at the WHO, other
technical and donor partners and implementing countries.
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