Desarrollo y validación de procedimientos para determinar losartán potásico en estudios de equivalencia terapéutica
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Baudrit Carrillo, Olga
Berrocal Barrantes, Ana Lorena
Fonseca González, Lidiette
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Abstract
Objetivos:
Desarrollar y validar dos procedimientos analíticos para una aplicación en estudios de
equivalencia terapéutica de tabletas de losartán potásico.
Métodos:
Se desarrolló un procedimiento por cromatografía líquida de alta resolución para cuantificar
losartán potásico en estudios in vitro (perfiles de disolución y uniformidad de contenido) y otro
procedimiento bioanalítico.
Las condiciones cromatográficas fueron: inyección de 100 L, fase estacionaria de
octadecilsilano, fase móvil de buffer fosfatos (pH 3,0)/acetonitrilo (50:50, v/v) a 0,8 mL/min y
detección a 225 nm.
Los protocolos de validación se basaron en los lineamientos de la Conferencia Internacional de
Armonización, la Organización Mundial de la Salud, la Administración de Drogas y Alimentos y
la Agencia de Medicinas Europea.
Objectives: Two analytical procedures were developed and validated for use in therapeutic equivalence studies of losartan potassium tablets. Methods: A procedure for the in vitro studies (dissolution profiles and content uniformity of tablets) proposed the development of a method for high resolution liquid chromatography whose conditions were: injection of 100 μL, an octadecylsilane stationary phase, phosphate buffer (pH 3.0), acetonitrile (50:50, v/v) as mobile phase with a flow rate of 0.8 mL/min and a detection wavelength of 225 nm. The setting of bioanalitycal procedure involved the solid phase extraction to 1 mL of human plasma. Validation protocols were based on the guidelines of the International Conferences of Harmonization, the World Health
Objectives: Two analytical procedures were developed and validated for use in therapeutic equivalence studies of losartan potassium tablets. Methods: A procedure for the in vitro studies (dissolution profiles and content uniformity of tablets) proposed the development of a method for high resolution liquid chromatography whose conditions were: injection of 100 μL, an octadecylsilane stationary phase, phosphate buffer (pH 3.0), acetonitrile (50:50, v/v) as mobile phase with a flow rate of 0.8 mL/min and a detection wavelength of 225 nm. The setting of bioanalitycal procedure involved the solid phase extraction to 1 mL of human plasma. Validation protocols were based on the guidelines of the International Conferences of Harmonization, the World Health
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Keywords
Losartán, Human plasma, High performance liquid chromatography
Citation
https://www.researchgate.net/publication/278036751_Development_and_validation_of_procedures_for_determining_losartan_potassium_in_therapeutic_equivalence_studies?channel=doi&linkId=557b0eb308aeb61eae21c54a&showFulltext=true