BMJ Open (May 2024)

Performance of glial fibrillary acidic protein (GFAP) and ubiquitin carboxy-terminal hydrolase L1 (UCH-L1) biomarkers in predicting CT scan results and neurological outcomes in children with traumatic brain injury (BRAINI-2 paediatric study): protocol of a European prospective multicentre study

  • ,
  • Vincent Sapin,
  • Javier de la Cruz,
  • Alfonso Lagares,
  • Odile Mejan,
  • Vladislav Pavlov,
  • François Dubos,
  • Christèle Gras-Le-Guen,
  • Anne Chauvire-Drouard,
  • Fleur Lorton,
  • María Antonia Poca,
  • Thibault de Groc,
  • Belén Rivero,
  • Rocío Rodrigo,
  • Peter Biberthaler,
  • Noelia Montoya,
  • Paula Duch,
  • Aasma Sahuquillo,
  • Pauline Scherdel,
  • Markus Lehner,
  • Lydie Abaléa,
  • Aymeric Cantais,
  • Véronique Chasle,
  • Marie-Amélie Chêne,
  • Béatrice De Pracontal,
  • Alban Laspougeas,
  • Ophélia Le Gentil,
  • Hélène Liénard,
  • Juliette Massot,
  • Cédric Ménager,
  • Sidney Passat,
  • Nadia Savy,
  • Gaelle Tourniaire,
  • Serafín Alonso,
  • Eva Andreu,
  • Montserrat Feliu,
  • Sandra Galve,
  • Francisca Munar,
  • Cristina Muro,
  • Elena Vilardell,
  • Iván Valverde,
  • Sonia Cañadas,
  • Sebastià González,
  • Esther Lera,
  • Olalla Rodríguez,
  • Mónica Sancosmed,
  • Núria Wörner,
  • Pablo Martín Munarriz,
  • Javier Saceda,
  • Hannah Luz

DOI
https://doi.org/10.1136/bmjopen-2023-083531
Journal volume & issue
Vol. 14, no. 5

Abstract

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Introduction In light of the burden of traumatic brain injury (TBI) in children and the excessive number of unnecessary CT scans still being performed, new strategies are needed to limit their use while minimising the risk of delayed diagnosis of intracranial lesions (ICLs). Identifying children at higher risk of poor outcomes would enable them to be better monitored. The use of the blood-based brain biomarkers glial fibrillar acidic protein (GFAP) and ubiquitin carboxy-terminal hydrolase-L1 (UCH-L1) could help clinicians in this decision. The overall aim of this study is to provide new knowledge regarding GFAP and UCH-L1 in order to improve TBI management in the paediatric population.Methods and analysis We will conduct a European, prospective, multicentre study, the BRAINI-2 paediatric study, in 20 centres in France, Spain and Switzerland with an inclusion period of 30 months for a total of 2880 children and adolescents included. To assess the performance of GFAP and UCH-L1 used separately and in combination to predict ICLs on CT scans (primary objective), 630 children less than 18 years of age with mild TBI, defined by a Glasgow Coma Scale score of 13–15 and with a CT scan will be recruited. To evaluate the potential of GFAP and UCH-L1 in predicting the prognosis after TBI (secondary objective), a further 1720 children with mild TBI but no CT scan as well as 130 children with moderate or severe TBI will be recruited. Finally, to establish age-specific reference values for GFAP and UCH-L1 (secondary objective), we will include 400 children and adolescents with no history of TBI.Ethics and dissemination This study has received ethics approval in all participating countries. Results from our study will be disseminated in international peer-reviewed journals. All procedures were developed in order to assure data protection and confidentiality.Trial registration number NCT05413499.