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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Holm, René
University of Southern Denmark
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (17/17 displayed)
- 2024Impact of drug compounds mechanical/deformation properties on the preparation of nano- and microsuspensionscitations
- 2024Impact of drug compounds mechanical/deformation properties on the preparation of nano- and microsuspensionscitations
- 2024A Systematic Investigation of Process Parameters for Small-Volume Aqueous Suspension Production by the Use of Focused Ultrasonication
- 2024A Systematic Investigation of Process Parameters for Small-Volume Aqueous Suspension Production by the Use of Focused Ultrasonication
- 2024Is roller milling – the low energy wet bead media milling – a reproducible and robust milling method for formulation investigation of aqueous suspensions?citations
- 2021Simultaneous determination of cyclodextrin stability constants as a function of pH and temperature – A tool for drug formulation and process designcitations
- 2020In Vivo Performance of Innovative Polyelectrolyte Matrices for Hot Melt Extrusion of Amorphous Drug Systemscitations
- 2019Modified Polymer Matrix in Pharmaceutical Hot Melt Extrusion by Molecular Interactions with a Carboxylic Coformercitations
- 2019Montmorillonite-surfactant hybrid particles for modulating intestinal P-glycoprotein-mediated transportcitations
- 2018Influence of PVP molecular weight on the microwave assisted in situ amorphization of indomethacincitations
- 2018Comparison of two DSC-based methods to predict drug-polymer solubilitycitations
- 2017Amorphization within the tabletcitations
- 2016Roller compaction scale-up using roll width as scale factor and laser-based determined ribbon porosity as critical material attributecitations
- 2016Glass solution formation in water - In situ amorphization of naproxen and ibuprofen with Eudragit® E POcitations
- 2015Evaluation of drug-polymer solubility curves through formal statistical analysiscitations
- 2013Preparation of an amorphous sodium furosemide salt improves solubility and dissolution rate and leads to a faster Tmax after oral dosing to ratscitations
- 2008Characterization and physical stability of spray dried solid dispersions of probucol and PVP-K30citations
Places of action
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article
Glass solution formation in water - In situ amorphization of naproxen and ibuprofen with Eudragit® E PO
Abstract
Previously, the concept of in situ amorphization of indomethacin/Eudragit® E compacts was introduced. In the current study, in situ amorphization of naproxen and ibuprofen with Eudragit® E was investigated to gain a better understanding of in situ amorphization and to investigate if this approach is applicable to other drugs. Compacts of drug and Eudragit® E were compressed at a 2:1, 1:1 and 1:2 drug-to-polymer ratio (w/w) and immersed in water for 1 h. Physicochemical characteristics, potential interactions and dissolution behavior were analyzed and compared to non-immersed compacts.<br/><br/>Both drugs formed a glass solution with Eudragit® E when immersed into water. In XRPD, reflections of the respective drugs decreased or disappeared completely. All samples showed a single glass transition temperature in the DSC, suggesting the formation of single phase amorphous systems. Ionic interactions between drug and polymer were identified by infrared spectroscopy. In the dissolution study (pH 4.1), especially the 1:1 (w/w) in situ amorphized samples showed an improved dissolution behavior compared to their non-immersed counterparts. It can be concluded that in situ amorphization is a promising method to amorphize poorly water-soluble drugs immediately prior to administration, and thereby avoid the physical stability problems connected to amorphous formulations during storage.