Multi-country Evaluation of Early RHD in Children Across Africa for Vaccine Trial Readiness
MEERCATS 1
A Multinational Cohort Study to Determine the Incidence of Early Rheumatic Heart Disease (MEERCATS Study 1)
1 other identifier
observational
7,500
1 country
1
Brief Summary
This study will look at how many children develop rheumatic heart disease (RHD) over a 3-year period. The study will include children ages 5 to 8 who do not have RHD at the start and who live in areas where the disease is common. Each child will have a heart ultrasound (echocardiogram) once a year for 3 years to check for signs of RHD. Doctors will diagnose RHD using internationally recognized guidelines from the World Heart Federation (2023). The study will also look at how often new cases occur each year, whether rates differ by age, sex, or location, and whether any children develop acute rheumatic fever during the study.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for all trials
Started Feb 2027
Longer than P75 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
August 24, 2026
CompletedFirst Posted
Study publicly available on registry
August 27, 2026
CompletedStudy Start
First participant enrolled
February 1, 2027
ExpectedPrimary Completion
Last participant's last visit for primary outcome
July 31, 2031
Study Completion
Last participant's last visit for all outcomes
March 1, 2032
August 27, 2026
August 1, 2026
4.5 years
August 24, 2026
August 24, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Number of Participants with 3-Year Cumulative Incidence of Rheumatic Heart Disease
Proportion of participants who develop RHD during the 3-year follow-up period, defined according to the 2023 World Heart Federation (WHF) echocardiographic criteria. Participants will be considered to have reached the endpoint if RHD is identified on any follow-up echocardiogram at 12, 24, or 36 months, or if they are diagnosed with acute rheumatic fever (ARF) during follow-up.
3 years
Secondary Outcomes (4)
Rate of Newly Diagnosed Rheumatic Heart Disease
12 months, 24 months, and 36 months
Number of Participants with RHD by Age Group
3 years
Number of Participants with RHD by Sex
3 years
Number of Participants with RHD by Geographic Location
3 years
Other Outcomes (1)
Number of Participants with Acute Rheumatic Fever
3 years
Eligibility Criteria
Potential participants may be identified through locally approved school-based screening programs, community-based recruitment activities, existing demographic surveillance systems, or other locally appropriate community engagement mechanisms.
You may qualify if:
- Age 5-8 years at enrollment
- Residence within participating study catchment area
- Parent/guardian able to provide informed consent
- Participant able to provide assent where age-appropriate (country-specific, see below)
- Normal baseline echocardiogram according to study screening protocol
You may not qualify if:
- History of past ARF or RHD with or without cardiac involvement
- Evidence of RHD at baseline screening
- Congenital heart disease at baseline screening (excluding small PFO/ASD)
- Medical conditions that would preclude safe participation or follow-up
- Anticipated inability to complete study follow-up
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Children's Hospital Medical Center, Cincinnatilead
- Uganda Heart Institutecollaborator
- Murdoch Childrens Research Institutecollaborator
- Ochsner Health Systemcollaborator
- Malawi Liverpool Wellcome Programmecollaborator
Study Sites (1)
Uganda Heart Institute
Kampala, Uganda, Uganda
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Andrea Beaton
Children's Hospital Medical Center, Cincinnati
Central Study Contacts
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
August 24, 2026
First Posted
August 27, 2026
Study Start (Estimated)
February 1, 2027
Primary Completion (Estimated)
July 31, 2031
Study Completion (Estimated)
March 1, 2032
Last Updated
August 27, 2026
Record last verified: 2026-08
Data Sharing
- IPD Sharing
- Will not share