Title:	Metanálise de estudos de bioequivalência : a intercambiabilidade de genéricos e similares que contêm Hidroclorotiazida é possível, mas não àqueles com Maleato de Enalapril
Other Titles:	Meta-analysis for bioequivalence studies : interchangeability of generic drugs and similar containing Hydrochlorothiazide is possible but not with Enalapril Maleate
Authors:	Lopes, Renato Almeida Neves, Francisco de Assis Rocha
Assunto::	Medicamentos - formas farmacêuticas Medicamentos genéricos - Brasil Enalapril Hidroclorotiazida
Issue Date:	Apr-2010
Publisher:	Sociedade Brasileira de Nefrologia
Citation:	LOPES, Renato Almeida; NEVES, Francisco de Assis Rocha. Metanálise de estudos de bioequivalência: a intercambiabilidade de genéricos e similares que contêm Hidroclorotiazida é possível, mas não àqueles com Maleato de Enalapril. Jornal Brasileiro de Nefrologia, São Paulo, v. 32, n. 2, abr./jun. 2010. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-28002010000200006&lng=pt&nrm=iso&tlng=pt>. Acesso em: 20 maio 2013. http://dx.doi.org/10.1590/S0101-28002010000200006. ___________________________________________________________________________________________________________ LOPES, Renato Almeida; NEVES, Francisco de Assis Rocha. Meta-analysis for bioequivalence studies: interchangeability of generic drugs and similar containing Hydrochlorothiazide is possible but not with Enalapril Maleate. Jornal Brasileiro de Nefrologia, São Paulo, v. 32, n. 2, abr./jun. 2010. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-28002010000200006&lng=pt&nrm=iso&tlng=en>. Acesso em: 20 maio 2013. http://dx.doi.org/10.1590/S0101-28002010000200006.
Abstract:	INTRODUCTION: The generic drugs program provided a better population's access to medicines. To ensure interchangeability between a brand-name and generic or similar drugs is necessary that they are bioequivalent. With the growing number of generic drugs, it is common for patients to replace a generic to another or one similar. However, this exchange can not guarantee the maintenance of bioequivalence. To evaluate the safety interchangeability between different generic and similar drugs with Hydrochlorothiazide and Enalapril Maleate, a meta-analysis was carried out with several bioequivalence studies with these drugs. METHODS: Data from bioequivalence of generic and similar drugs approved by the National Health Surveillance Agency (Anvisa) (drug regulatory agency in Brazil) were used. The compatibility of data from each study was analyzed and the determination of a confidence interval for the differences between the means of pharmacokinetic parameters, area under the curve (ASC0-t) and maximum plasma concentration (Cmax), was made for each study by meta-analysis. RESULTS: The interchangeability between the combinations of the three products with Hydrochlorothiazide was confirmed based on the obtained confidence intervals. For the drugs studied with Enalapril Maleate interchangeability has not been confirmed for 50% of the product comparisons. CONCLUSION: The exchange was established between the three products with hydrochlorothiazide. However, for the Enalapril Maleate half of the products studied are not interchangeable, considering they do not match the established intervals for bioequivalence tests, so the pharmacokinetics behavior and thus the effectiveness of the product may be changed.
Licença::	Jornal Brasileiro de Nefrologia - Todo o conteúdo do periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons (Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)). Fonte: http://www.scielo.br/revistas/jbn/paboutj.htm. Acesso em: 20 maio 2013.
DOI:	http://dx.doi.org/10.1590/S0101-28002010000200006
Appears in Collections:	Artigos publicados em periódicos e afins

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