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Update on pharmacogenetics in pediatrics
Irene Taladriz-Sender1, Sara Salvador-Martín1, Paula Zapata-Cobo1
1Servicio de Farmacia, Hospital General Universitario Gregorio Marañón. Instituto de Investigación Sanitaria Gregorio Marañón (IiSGM). Madrid, Spain.
Abstract:
The implementation of pharmacogenetics in Spain has experienced a significant boost in the last year, driven by the update of the genetic services portfolio of the National Health System, the national Summary of Product Characteristics (SmPC) biomarker database and the development and update of clinical guidelines by scientific societies and expert groups. However, the scope of this implementation is quite limited in the pediatric population because most studies do not include children, which in turn means that, in many cases, guidelines do not specify what to do in this population. This article reviews the tests included in the Common Portfolio of Genetic Services, drugs with pharmacogenetic recommendations in technical data sheets, and the main global and national pharmacogenetic guidelines, extracting and analyzing the existing information for the pediatric population. Drug-gene pairs with greater use in pediatrics are presented in more detail, such as proton pump inhibitors and CYP2C19, Abacavir, allopurinol, carbamazepine, oxcarbazepine, and phenytoin with HLA-A and HLA-B genes, voriconazole and CYP2C19, tacrolimus and CYP3A5, aminoglycosides and MT-RNR1, thiopurines and TMPT/NUDT15, or atomoxetine and CYP2D6. Despite current limitations, the use of pharmacogenetics in pediatrics can and should be implemented in those cases where regulatory agencies and/or scientific societies recommend it.
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