Evaluation of methods for estimating the rate constant of a one-compartment absorption model when absorption and elimination rate constants are equal
โ Scribed by John F. Hoke; William R. Ravis
- Publisher
- John Wiley and Sons
- Year
- 1992
- Tongue
- English
- Weight
- 223 KB
- Volume
- 81
- Category
- Article
- ISSN
- 0022-3549
No coin nor oath required. For personal study only.
โฆ Synopsis
Data are mean predicted k values. Conditions: (A) nine data sets, 10% random error; (6) six data sets, 20% random error; (C) nine data sets, limited Cand t,10% random error. The real value of k for conditions A-C is 0.5. Values in parentheses are coefficients of variation; ranges are ranges of prediction. Values are concentrations in plasma at 0.5, 1, 2, 4, 6, and 8 h.
๐ SIMILAR VOLUMES
The objective of this work was to develop a simple residual method to estimate the rate constant for actual or apparent zero-order absorption into a one-compartment model. The method is based on the fact that, in theory, a plot of residuals versus e 7Kt is linear for a zero-order absorption process,
In a recent study, Chen and Pelsorl reevaluated the applicability of the half-life approach in the assessment of the relative extent of drug absorption for bioavailabilityl bioequivalence studies. This approach is based on the comparisons of the truncated areas under the curve (AUCs; that is, AUC, )
The guide "Waiver of In Vivo Bioavailability and Bioequivalence Studies for Immediate Release Solid Dosage Forms Containing Certain Active Moieties/Active Ingredients Based on a Biopharmaceutical Classification System" (Rockville, MD: CDER, 2000) outlined non-in vivo tests of permeability that may s