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UMOYA: a prospective longitudinal cohort study to evaluate novel diagnostic tools and to assess long-term impact on lung health in South African children with presumptive pulmonary TB—a study protocol

Article scientifique 2023 Anglais

Résumé

BACKGROUND: Despite a high paediatric tuberculosis (TB) burden globally, sensitive and specific diagnostic tools are lacking. In addition, no data exist on the impact of pulmonary TB on long-term child lung health in low- and middle-income countries. The prospective observational UMOYA study aims (1) to build a state-of-the-art clinical, radiological, and biological repository of well-characterised children with presumptive pulmonary TB as a platform for future studies to explore new emerging diagnostic tools and biomarkers for early diagnosis and treatment response; and (2) to investigate the short and long-term impact of pulmonary TB on lung health and quality of life in children. METHODS: We will recruit up to 600 children (0-13 years) with presumptive pulmonary TB and 100 healthy controls. Recruitment started in November 2017 and is expected to continue until May 2023. Sputum and non-sputum-based samples are collected at enrolment and during follow-up in TB cases and symptomatic controls. TB treatment is started by routine care services. Intensive follow-up for 6 months will allow for TB cases to retrospectively be classified according to international consensus clinical case definitions for TB. Long-term follow-up, including imaging, comprehensive assessment of lung function and quality of life questionnaires, are done yearly up to 4 years after recruitment. DISCUSSION: The UMOYA study will provide a unique platform to evaluate new emerging diagnostic tools and biomarkers for early diagnosis and treatment response and to investigate long-term outcomes of pulmonary TB and other respiratory events on lung health in children.

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Dewandel, I., Niekerk, M., Ghimenton-Walters, E., Palmer, M., Anthony, M., McKenzie, C., Croucamp, R., Alter, G., Demers, A., Zyl, G., Claassen, M., Goussard, P., Swanepoel, R., Hoddinott, G., Bosch, C., Dunbar, R., Allwood, B., McCollum, E., Schaaf, H., Hesseling, A., Zalm, M. (2023). UMOYA: a prospective longitudinal cohort study to evaluate novel diagnostic tools and to assess long-term impact on lung health in South African children with presumptive pulmonary TB—a study protocol. https://doi.org/10.1186/s12890-023-02329-3

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Auteur(s)

Isabelle Dewandel Margaret van Niekerk Elisabetta Ghimenton-Walters Megan Palmer Michaile G. Anthony Carla McKenzie Rolanda Croucamp Galit Alter Anne‐Marie Demers Gert U. van Zyl Mathilda Claassen Pierre Goussard Ruan Swanepoel Graeme Hoddinott Corné Bosch Rory Dunbar Brian Allwood Eric D. McCollum H. Simon Schaaf Anneke C. Hesseling Marieke M. van der Zalm

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