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Relative bioavailability study of a new medium/long-chain triglyceride emulsion of propofol in beagle dogs.

Chen W, et al. Drug Res (Stuttg). 2013.


The aim of this study was to evaluate the bioequivalence of a new generic formulation of propofol medium/long-chain triglyceride emulsion (test) and the available branded formulation (reference) to comply with regulatory criteria for marketing of the test product in China. This single-dose, randomized-sequence, open-label, 2-period crossover study was conducted in 6 beagle dogs. Blood samples were collected before dosing and at different time after dosing. Plasma samples were separated and assayed for propofol using a selective and sensitive HPLC method with fluorescence detection. The pharmacokinetic parameters AUC0-T, AUC0-∞, MRT, t1/2 and CL were determined from plasma concentration-time profile of both formulations. The formulations were considered bioequivalent when the 90% CIs of the geometric mean ratios (test:reference) for AUC0-T and AUC0-∞ were within the regulatory range of 80% to 125%.


23842941 [PubMed - indexed for MEDLINE]

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