Mixed Materials
IVIVC Revised
| Τίτλος: | IVIVC Revised |
|---|---|
| Additional Titles: | Purpose: To revise the IVIVC considering the physiologically sound Finite Absorption Time (F.A.T.) and Finite Dissolution Time (F.D.T.) concepts. Methods: The estimates τ and τd for F.A.T. and F.D.T., respectively are constrained by the inequality τd ≤ τ; their relative magnitude is dependent on drug’s BCS classification. A modified Levy plot, which includes the time estimates for τ and τd was developed. IVIVC were also considered in the light of τ and τd estimates. The modified Levy plot of theophylline, a class I drug, coupled with the rapid (30 min) and very rapid (15 min) dissolution time limits showed that drug dissolution/absorption of Class I drugs takes place in less than an hour. We reanalyzed a carbamazepine (Tegretol) bioequivalence study using PBFTPK models to reveal its complex absorption kinetics with two or three stages. Results: The modified Levy plot unveiled the short time span (~ 2 h) of the in vitro dissolution data in comparison with the duration of in vivo dissolution/absorption processes (~ 17 h). Similar results were observed with the modified IVIVC plots. Analysis of another set of carbamazepine data, using PBFTPK models, confirmed a three stages absorption process. Analysis of steady-state (Tegretol) data from a paediatric study using PBFTPK models, revealed a single input stage of duration 3.3 h. The corresponding modified Levy and IVIVC plots were found to be nonlinear. Conclusions: The consideration of Levy plots and IVIVC in the light of the F.A.T. and F.D.T. concepts allows a better physiological insight of the in vitro and in vivo drug dissolution/absorption processes. © The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature 2024. |
| Συγγραφείς: | Alimpertis, Nikolaos, Simitopoulos, Antony, Tsekouras, Athanasios A., Macheras, Panos |
| Στοιχεία εκδότη: | 2024 |
| Τύπος εγγράφου: | Mixed materials |
| Όροι ευρετηρίου: | scientific_publication_article, Scientific publication - Journal Article |
| Σύνδεσμος: | |
| Διαθεσιμότητα: | Open access content. Open access content Creative Commons Attribution-NonCommercial 4.0 (CC-BY-NC) |
| Σημείωση: | English |
| Other Numbers: | GRNKU oai:lib.uoa.gr:uoadl:3492617 uoadl:3492617 1523429130 |
| Πηγή συνεισφοράς: | NATIONAL & KAPODISTRIAN UNIV OF ATHENS From OAIster®, provided by the OCLC Cooperative. |
| Αριθμός Καταχώρησης: | edsoai.on1523429130 |
| Βάση Δεδομένων: | OAIster |
| Η περιγραφή δεν είναι διαθέσιμη |