This study examines two new malaria vaccines (FP9-PP and MVA-PP) in healthy human volunteers to determine their safety and ability to induce a measurable immune response against malaria.
Malaria infection kills over 2 million people each year. It is a major problem for those who live in endemic areas and for travellers. There is clearly a great need for a safe effective malaria vaccine. The purpose of this study is to test two candidate malaria vaccines (FP9-PP and MVA-PP) in different concentrations and combinations. These live viral vectors encode a 'polyprotein' of six fused malaria antigens expressed at liver and blood stages of the malaria parasite lifecycle. MVA-PP uses the Modified Virus Ankara vector, a weakened form of the smallpox vaccine, vaccinia. FP9-PP uses a highly attenuated avian pox virus (FP9) as the vector instead. The two vaccines will be used in combination in a 'prime boost' strategy to enhance the response of the cellular immune system. This study will: 1. Examine safety 2. Examine immunogenicity 3. Provide a subgroup of vaccinated volunteers to test clinical efficacy in the following malaria challenge study (VAC027.2)
Study Type
INTERVENTIONAL
Allocation
NON_RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
35
Centre for Clinical Vaccinology & Tropical Medicine, University of Oxford
Oxford, United Kingdom
Immediate reactogenicity
Adverse events occurring before the end of the trial
Biological safety (haematological and biochemical indices)
T-cell immunogenicity (prime-boost groups)
Humoral immunogenicity (prime-boost groups)
Gene expression (prime-boost groups)
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