National Blood Pressure Screening in Children to Improve Paediatric Healthcare in South Africa

NCT ID: NCT05982847

Last Updated: 2024-09-05

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Total Enrollment

22464 participants

Study Classification

OBSERVATIONAL

Study Start Date

2024-04-01

Study Completion Date

2028-11-30

Brief Summary

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The Childhood Hypertension Consortium of South Africa (CHCSA) was established to foster relationships between the healthcare sector and schools through community engagement and outreach as well as contributing to the decolonization of normative paediatric blood pressure reference values. To date, there has been no nation-wide project in South Africa to determine nationally representative normal blood pressure reference values, nor to estimate the true prevalence of hypertension in the paediatric population of the country. This study will provide critical information on the understanding of blood pressure and hypertension in children, especially of African ancestry. Not only will this effort contribute to the development of the first nationally representative normal reference values of blood pressure but will also benefit healthcare providers in the sector with a clear guideline on the management of high blood pressure in children as developed by experts working with these challenges daily.

Detailed Description

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Rationale: Currently there exist no nationally representative set of normative reference values for blood pressure and anthropometry in South African children, while clinicians rely on European and US reference values. The latter seems inappropriate in the South African setting, especially considering the lack of data available in African ancestry normative data.

Objectives: The investigators aim to development the first nationally representative normal reference values of blood pressure and anthropometry in children, to develop scientific evidence-based hypertension guidelines in the paediatric population of South Africa.

Methods: The target population for this study includes 5 to under 18 years school-aged (all school quintiles) children in South Africa from all provinces in the country selected in a randomized manner and to ensure generalizability.

Population: A sample of 22 464 (81% Black African; 9% Coloured; 8% White and 2% Indian/Asian) will be required to enable computation of reference values for each age and sex across urban, peri-urban and rural settings in all provinces.

Time frame: The study will recruit and collect data over a period of five years.

Expected outcomes: The investigators expect that normative blood pressure in children (ages above 5 and under 18 years) will differ from currently accepted international thresholds. The investigators will engage in the communities to optimise awareness and care of high blood pressure and its comorbidities. Recommendations will be made to the National Department of Health regarding blood pressure measurement/screening for hypertension in children at the local clinic in the Road to Health booklet. The investigators will also develop the first clinical practice guidelines for the management of hypertension in children in South Africa in collaboration with hypertension societies.

Conditions

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Hypertension Obesity, Adolescent Obesity, Childhood

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Boys

Blood pressure screening

Intervention Type DIAGNOSTIC_TEST

Blood pressure and anthropometric measurements will be performed in children and adolescents between ages 5-18 years to develop South African nomograms that will aid in the development of clinical practice guidelines to optimise hypertension care in South Africa youth.

Girls

Blood pressure screening

Intervention Type DIAGNOSTIC_TEST

Blood pressure and anthropometric measurements will be performed in children and adolescents between ages 5-18 years to develop South African nomograms that will aid in the development of clinical practice guidelines to optimise hypertension care in South Africa youth.

Interventions

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Blood pressure screening

Blood pressure and anthropometric measurements will be performed in children and adolescents between ages 5-18 years to develop South African nomograms that will aid in the development of clinical practice guidelines to optimise hypertension care in South Africa youth.

Intervention Type DIAGNOSTIC_TEST

Other Intervention Names

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Anthropometric measurements

Eligibility Criteria

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Inclusion Criteria

* All children between ages 5-\<18 years
* All children with voluntary assent/consent and parent's permission

Exclusion Criteria

* circumstances interfere with the participant's ability to give informed consent (diminished understanding or comprehension, or any language barriers that may pose potential risk in participation under false expectations)
* randomly selected children who choose not to participate (lack of assent/consent), even if parent's permission was received,
* conditions that interfere with a patient's ability to follow study guidelines, e.g., the use of drugs, alcohol or tobacco products
* ages \>18 years or under 5 years
* Children will be excluded from the analysis for the determination of normative reference values for blood pressure and anthropometry if taking certain concomitant medication(s) that may affect their blood pressure, or any underlying disease e.g., chronic kidney disease, chronic heart disease etc. that may raise blood pressure.
Minimum Eligible Age

5 Years

Maximum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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Medical Research Council, South Africa

OTHER

Sponsor Role collaborator

University of Cape Town

OTHER

Sponsor Role collaborator

University of Limpopo

OTHER

Sponsor Role collaborator

Walter Sisulu University

OTHER

Sponsor Role collaborator

University of KwaZulu

OTHER

Sponsor Role collaborator

Red Cross War Memorial Childrens Hospital

OTHER

Sponsor Role collaborator

University of Witwatersrand, South Africa

OTHER

Sponsor Role collaborator

University of Zurich

OTHER

Sponsor Role collaborator

Groote Schuur Hospital

UNKNOWN

Sponsor Role collaborator

Nelson Mandela Metropolitan University

OTHER

Sponsor Role collaborator

Chris Hani Baragwanath Academic Hospital

OTHER

Sponsor Role collaborator

University of the Free State

UNKNOWN

Sponsor Role collaborator

North-West University, South Africa

OTHER

Sponsor Role lead

Responsible Party

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Ruan Kruger

Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Walter Sisulu University

Mthatha, Eastern Cape, South Africa

Site Status NOT_YET_RECRUITING

Nelson Mandela Metropolitan University

Port Elizabeth, Eastern Cape, South Africa

Site Status RECRUITING

University of the Free State

Bloemfontein, Free State, South Africa

Site Status RECRUITING

University of the Witwatersrand

Johannesburg, Gauteng, South Africa

Site Status RECRUITING

University of KwaZulu-Natal

Durban, KwaZulu-Natal, South Africa

Site Status NOT_YET_RECRUITING

University of Limpopo

Polokwane, Limpopo, South Africa

Site Status NOT_YET_RECRUITING

Hypertension in Africa Research Team (HART), North-West University

Potchefstroom, North West, South Africa

Site Status RECRUITING

Red Cross War Memorial Children Hospital

Cape Town, Western Cape, South Africa

Site Status NOT_YET_RECRUITING

South African Medical Research Council

Cape Town, Western Cape, South Africa

Site Status NOT_YET_RECRUITING

University of Cape Town

Cape Town, Western Cape, South Africa

Site Status NOT_YET_RECRUITING

University of Zurich

Zurich, , Switzerland

Site Status NOT_YET_RECRUITING

Countries

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South Africa Switzerland

Central Contacts

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Ruan Kruger, PhD

Role: CONTACT

+27182992904

Lebo F Gafane-Matemane, PhD

Role: CONTACT

+27182992193

Facility Contacts

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Benedicta Nkeh-Chungag, PhD

Role: primary

+27475021989

Aayesha Kholvadia, PhD

Role: primary

Cheryl Walter, PhD

Role: backup

Johannes Cronje, MD

Role: primary

Shane Norris, PhD

Role: primary

Lisa J Ware, PhD

Role: backup

Rajendra Bhimma, MD

Role: primary

Kotsedi D Monyeki, PhD

Role: primary

Ruan Kruger, PhD

Role: primary

+27824902342 ext. 992904

Peter Nourse, MD

Role: primary

Mignon McCulloch, MD

Role: backup

Liesl Zuhlke, MD

Role: primary

Rabia Johnson, PhD

Role: backup

Sandra Mukasa, PhD

Role: primary

Erika Jones, MD

Role: backup

Friedrich Thienemann, MD

Role: primary

Related Links

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Other Identifiers

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REC 4/23/03/22

Identifier Type: -

Identifier Source: org_study_id

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