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Nunes PD, Pinto JF, Bauer-Brandl A, Brandl M, Henriques J, Paiva AM. In vitro dissolution/permeation tools for amorphous solid dispersions bioavailability forecasting I: Experimental design for PermeaLoop™. Eur J Pharm Sci 2023; 188:106512. [PMID: 37423576 DOI: 10.1016/j.ejps.2023.106512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2022] [Revised: 06/11/2023] [Accepted: 06/29/2023] [Indexed: 07/11/2023]
Abstract
Along with the increasing demand for candidate-enabling formulations comes the need for appropriate in vitro bioavailability forecasting. Dissolution/permeation (D/P) systems employing cell-free permeation barriers are increasingly gaining interest, due to their low cost and easy application as passive diffusion bio-predictive profiling in drug product development, as this accounts for nearly 75% of new chemical entities (NCEs) absorption mechanism. To this end, this study comprises theoretical considerations on the design and experimental work towards the establishment and optimization of a PermeaLoop™ based dissolution/permeation assay to simultaneously evaluate the drug release and permeation using Itraconazole (ITZ)-based amorphous solid dispersions (ASD) formulations, with different drug loads, based on a solvent-shift approach. Alternative method conditions were tested such as: donor medium, acceptor medium and permeation barrier were screened using both PermeaPad® and PermeaPlain® 96-well plates. A range of solubilizers, namely Sodium Dodecyl Sulfate, Vitamin E-TPGS and hydroxypropyl-β-cyclodextrin, were screened as possible solubilizing additives to the acceptor medium, while donor medium was varied between blank FaSSIF (phosphate buffer) and FaSSIF. The method optimization also included the ITZ dose selection, being the ITZ single dose (100 mg) considered the most adequate to be used in further experiments to allow the comparison with in vivo studies. In the end, a standardized approach that may be applied to predict the bioavailability of weakly basic poorly soluble drug-based formulations is described, contributing to strengthening the analytical portfolio of in vitro pre-clinical drug product development.
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Affiliation(s)
- Patrícia D Nunes
- R&D Analytical Development, Hovione Farmaciência S.A., Campus do Lumiar, Building S, 1649-038 Lisboa, Portugal; R&D Oral Drug Product Development, Hovione Farmaciência S.A., Campus do Lumiar, Building S, 1649-038 Lisboa, Portugal; Research Institute for Medicines (iMed.Ulisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal
| | - João F Pinto
- Research Institute for Medicines (iMed.Ulisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisboa, Portugal.
| | - Annette Bauer-Brandl
- Drug Transport and Delivery Group, Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense DK, 5230, Denmark
| | - Martin Brandl
- Drug Transport and Delivery Group, Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Odense DK, 5230, Denmark.
| | - João Henriques
- R&D Oral Drug Product Development, Hovione Farmaciência S.A., Campus do Lumiar, Building S, 1649-038 Lisboa, Portugal
| | - Ana Mafalda Paiva
- R&D Analytical Development, Hovione Farmaciência S.A., Campus do Lumiar, Building S, 1649-038 Lisboa, Portugal
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Holzem FL, Weck A, Schaffland JP, Stillhart C, Klein S, Bauer-Brandl A, Brandl M. Biopredictive capability assessment of two dissolution/permeation assays, µFLUX™ and PermeaLoop™, using supersaturating formulations of Posaconazole. Eur J Pharm Sci 2022; 176:106260. [PMID: 35842141 DOI: 10.1016/j.ejps.2022.106260] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 07/05/2022] [Accepted: 07/11/2022] [Indexed: 11/03/2022]
Abstract
The majority of new drug entities exhibits poor water solubility and therefore enabling formulations are often needed to ensure sufficient in vivo bioavailability upon oral administration. Several in vitro tools have been proposed for biopredictive screening of such drug formulations to facilitate formulation development. Among these, combined dissolution/permeation (D/P) assays have gained increasing interest in recent years, since they are presumed to better predict the absorption behavior as compared to single-compartment dissolution assays. Moreover, especially for supersaturating formulations, it has been demonstrated that the presence of an absorption sink better mimics the intraluminal supersaturation performance. The present study aimed to investigate the biopredictive abilities of two in vitro D/P setups to predict intestinal supersaturation and systemic absorption of supersaturable systems. Experiments were performed with a µFLUX™ and PermeaLoop™ apparatus, respectively, which differ primarily in their volume-to-area ratios between donor compartment and membrane as well as in the type of biomimetic barrier. A two-stage dissolution protocol was adopted to mimic the transit from acidic stomach to more neutral intestinal fluids using biomimetic media. Three formulations of the weakly basic compound Posaconazole (PCZ), namely an acidified and a neutral suspension and an amorphous solid dispersion (ASD) tablet, were tested. Under the present conditions, and for the specific set of formulations studied here, PermeaLoop™ showed a better biopredictive ability for intestinal supersaturation and systemic absorption for the three formulations than the µFLUX™ D/P setup. Interestingly, minor modifications of the two-stage D/P protocol in terms of medium transfer rates from simulated gastric fluid (SGF) to fasted state simulated intestinal fluid (FaSSIF) had a substantial impact particularly on the permeation of the crystalline PCZ suspension ("acidified suspension"). The ASD tablet was less sensitive to gradual medium changes than the crystalline PCZ suspensions. The current study confirms the usefulness of D/P assays for formulation ranking of weakly basic compounds and supersaturating formulations.
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Affiliation(s)
- Florentin Lukas Holzem
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, Odense 5230, Denmark; Pharmaceutical R&D, Formulation & Process Sciences, F. Hoffmann-La Roche Ltd., Basel 4070, Switzerland
| | - Anika Weck
- Pharmaceutical R&D, Formulation & Process R&D 3, F. Hoffmann-La Roche Ltd., Basel 4070, Switzerland
| | - Jeannine Petrig Schaffland
- Roche Pharmaceutical Research & Early Development, Pre-Clinical CMC, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd., Basel 4070, Switzerland
| | - Cordula Stillhart
- Pharmaceutical R&D, Formulation & Process Sciences, F. Hoffmann-La Roche Ltd., Basel 4070, Switzerland
| | - Sandra Klein
- Institute of Pharmacy, University of Greifswald, Greifswald 17489, Germany
| | - Annette Bauer-Brandl
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, Odense 5230, Denmark.
| | - Martin Brandl
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, Odense 5230, Denmark
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