Malaria Birth Cohort (MBC) in Agogo, Ghana (MBC)

  • STATUS
    Recruiting
  • End date
    Apr 9, 2025
  • participants needed
    1800
  • sponsor
    Bernhard Nocht Institute for Tropical Medicine
Updated on 14 February 2022
fever
vaccination
Accepts healthy volunteers

Summary

Malaria is a major health threat worldwide with an estimated 229 million cases and 409,000 deaths in 2019 (WHO, World Malaria Report 2019). Vulnerable are young children and pregnant women. The study aims to investigate immunity development against malaria with regard to parasite, human, and socioeconomic factors and possible correlations with pathology or protection in a prospective birth cohort.

Description

Malaria during pregnancy poses substantial risks for the mother and her foetus. Due to the risk of malaria during early childhood, the study addresses the high malaria morbidity and mortality in young children. Though recognised as a public health issue, it has still not been well understood how clinical immunity against malaria parasites develops, which parasite and host factors play a role in infection susceptibility, and why some infections proceed to develop severe complications while others resolve after a mild disease.

In order to identify interactions between parasite and host, a longitudinal study is performed starting with the recruitment of pregnant women. The study is conducted in Agogo in Ghana, an area with high malaria endemicity. The study design allows to analyse the neonatal immune status at birth, after potential in-utero exposure, and follows the development of immunity over the first 36 months of life. The current paradigm is that time points and frequency of infection as well as the type of variant surface antigen expressed have an impact on the cellular and humoral immune response to malaria, the development of clinical immunity, as well as the risk for future complications.

Starting point of the study is the antenatal care visit of mothers at Agogo Presbyterian Hospital (APH) during pregnancy. During recruitment, the mother will be asked to read and sign an informed consent form approved by the local ethical committee. After consent has been obtained from the mother, biological samples are taken, and a case report form is filled. An identification card with a unique code number is handed out. The first follow-up visit occurs at the birth of the child. At this time point, samples are taken from the mothers and the child. Mothers/primary caregivers are invited to observe the EPI visits offered at their nearest health post for further follow-ups. In the first year after birth, the EPI schedule includes visits at six weeks, ten weeks, 14 weeks, six months, and nine months. During these visits, questionnaires are completed and stool samples are taken. In the first six weeks after birth, the household is visited to complete a household questionnaire including housing characteristics and household assets. Additionally, a women's questionnaire is administered, which collects demographic and socioeconomic background characteristics as well as health and related behavioural data. At 12, 18, 24, and 36 months after birth, mothers/primary caregivers are encouraged to bring their children to the study hospital (APH) for a medical check-up. For the period of 36 months after birth, mothers/primary caregivers are strongly encouraged to visit the study hospital (APH) every time the child experiences a febrile illness or a history of fever in the last week during the observation period.

Details
Condition Malaria
Clinical Study IdentifierNCT04050566
SponsorBernhard Nocht Institute for Tropical Medicine
Last Modified on14 February 2022

Eligibility

Yes No Not Sure

Inclusion Criteria

Catchment area of the EPI (Expanded Program of Immunization) centres with good accessibility to Agogo Prespyterian Hospital (APH)
Willingness and able to give informed consent for herself and her child

Exclusion Criteria

Maternal age below 18 years
Positive HIV status of mother
Refusal or withdrawal of informed consent
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Additional screening procedures may be conducted by the study team before you can be confirmed eligible to participate.

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If you are confirmed eligible after full screening, you will be required to understand and sign the informed consent if you decide to enroll in the study. Once enrolled you may be asked to make scheduled visits over a period of time.

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Complete your scheduled study participation activities and then you are done. You may receive summary of study results if provided by the sponsor.

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