Safety and Efficacy Study of RTS,S AS02A/AS01B Vaccine to Prevent Malaria
August 20, 2014 updated by: U.S. Army Medical Research and Development Command
Dbl-Blind, Rand Phase 1/2a Human Challenge Study, to Eval Safety, Reactogenicity, Immunogenicity and Preliminary Efficacy After Sporozoite Challenge/Rechallenge of Vaccines Containing RTS,S
This is a double blinded study where 2 test vaccines will be evaluated to see if they protect persons who have never had malaria against malaria infection when bitten by mosquitoes.
Study Overview
Status
Completed
Conditions
Intervention / Treatment
Study Type
Interventional
Enrollment
104
Phase
- Phase 2
- Phase 1
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Locations
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Maryland
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Silver Spring, Maryland, United States, 20910
- Walter Reed Army Institute of Research
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Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 45 years (Adult)
Accepts Healthy Volunteers
No
Genders Eligible for Study
All
Description
Inclusion Criteria:
- Be in good general health
- Be able to participate for 4-15 months
Exclusion Criteria:
- Pregnant or planning pregnancy
- History of malaria or exposure to malaria in past 12 months
- Received an investigational malaria vaccine
- Past history of allergic reaction to previous immunization
- Positive blood tests for HIV and specific types of hepatitis
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Prevention
- Allocation: Randomized
- Interventional Model: Single Group Assignment
- Masking: Double
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
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To assess the safety and reactogenicity of the candidate vaccine
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Secondary Outcome Measures
Outcome Measure |
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To assess the humoral immune response to the candidate vaccine
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To assess the efficacy of the candidate vaccine
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Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Investigators
- Principal Investigator: Kent Kester, MD, Walter Reed Army Institute of Research (WRAIR)
Publications and helpful links
The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.
General Publications
- Stewart VA, McGrath SM, Walsh DS, Davis S, Hess AS, Ware LA, Kester KE, Cummings JF, Burge JR, Voss G, Delchambre M, Garcon N, Tang DB, Cohen JD, Heppner DG Jr. Pre-clinical evaluation of new adjuvant formulations to improve the immunogenicity of the malaria vaccine RTS,S/AS02A. Vaccine. 2006 Oct 30;24(42-43):6483-92. doi: 10.1016/j.vaccine.2006.06.033. Epub 2006 Jul 3.
- Kurtovic L, Atre T, Feng G, Wines BD, Chan JA, Boyle MJ, Drew DR, Hogarth PM, Fowkes FJI, Bergmann-Leitner ES, Beeson JG. Multifunctional Antibodies Are Induced by the RTS,S Malaria Vaccine and Associated With Protection in a Phase 1/2a Trial. J Infect Dis. 2021 Oct 13;224(7):1128-1138. doi: 10.1093/infdis/jiaa144.
- Kester KE, Cummings JF, Ofori-Anyinam O, Ockenhouse CF, Krzych U, Moris P, Schwenk R, Nielsen RA, Debebe Z, Pinelis E, Juompan L, Williams J, Dowler M, Stewart VA, Wirtz RA, Dubois MC, Lievens M, Cohen J, Ballou WR, Heppner DG Jr; RTS,S Vaccine Evaluation Group. Randomized, double-blind, phase 2a trial of falciparum malaria vaccines RTS,S/AS01B and RTS,S/AS02A in malaria-naive adults: safety, efficacy, and immunologic associates of protection. J Infect Dis. 2009 Aug 1;200(3):337-46. doi: 10.1086/600120.
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
December 1, 2003
Primary Completion (Actual)
January 1, 2006
Study Completion (Actual)
January 1, 2006
Study Registration Dates
First Submitted
December 31, 2003
First Submitted That Met QC Criteria
December 31, 2003
First Posted (Estimate)
January 1, 2004
Study Record Updates
Last Update Posted (Estimate)
August 21, 2014
Last Update Submitted That Met QC Criteria
August 20, 2014
Last Verified
August 1, 2014
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- WRAIR 1032
- HSRRB A-12227
- 257049/027
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.