Evaluating the RTS,S malaria vaccine's safety and effectiveness

Strengthening the Evidence for Policy on the RTS,S/AS01 Malaria Vaccine: Assessment of Safety and Effectiveness Using Case-control Studies Embedded in the Malaria Vaccine Pilot Evaluation

Observational Kintampo Health Research Centre, Ghana · NCT05041556

This study is testing how safe and effective the RTS,S malaria vaccine is for young children in Ghana, Malawi, and Kenya.

Quick facts

Study typeObservational
Enrollment9280 (estimated)
Ages6 Months to 59 Months
SexAll
SponsorKintampo Health Research Centre, Ghana Academic / other
Locations4 sites (Kintampo and 3 other locations)
Trial IDNCT05041556 on ClinicalTrials.gov

What this trial studies

This observational study is part of the Malaria Vaccine Pilot Evaluation (MVPE) and aims to assess the safety and effectiveness of the RTS,S/AS01 malaria vaccine through case-control studies in Ghana, Malawi, and Kenya. It will involve recruiting children aged 6 to 59 months from sentinel hospitals and surrounding communities, where each case will be matched with four controls. The study will focus on measuring safety outcomes, including severe malaria and all-cause mortality, while also promoting the use of case-control methodologies in immunization programs.

Who should consider this trial

Good fit: Ideal candidates for this study are children aged 6 to 59 months living in areas where the RTS,S/AS01 vaccine is being implemented.

Not a fit: Patients who are not residents in the RTS,S/AS01 implementation areas or whose caregivers do not provide consent will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide critical evidence to support the safe implementation of the RTS,S malaria vaccine, potentially reducing malaria-related morbidity and mortality in children.

How similar studies have performed: Other studies evaluating malaria vaccines have shown promising results, indicating that this approach is built on existing evidence but focuses on a specific case-control methodology.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Willingness to participate in study evidenced by written informed consent provided by an adult caregiver
* Resident in an RTS,S/AS01 implementation area within the catchment area of MVPE sentinel hospitals
* Eligible, based on date of birth and age, to have received RTSS/AS01
* Meets the case or control definitions above.

Exclusion Criteria:

* Caregiver not willing to provide consent

Where this trial is running

Kintampo and 3 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions MalariaVaccinesCase-controlSafetyMortality
Last reviewed 2026-06-09 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.