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Human pharmacology trials limitations

Drug metabolism and pharmacokinetic (DMPK) studies are used to show how the concentrations of the drug and its metabolites vary with the administered dose of the drug and the time from administration. They are normally carried out using suitable animal species and in humans in Phase I trials. The information obtained from animal studies is used to determine safe dose levels for use in the Phase I clinical trials in humans. However, the accuracy of the data obtained from animal tests is limited, since it is obtained by extrapolation. In addition, it is necessary to determine the dose that just saturates the absorption and elimination processes so that the toxicological and pharmacological events may be correctly interpreted. [Pg.234]

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See also in sourсe #XX -- [ Pg.94 ]



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