Modified-release oral drug delivery dosage forms are widely used in the pharmaceutical field to overcome all the potential issues imposed by the physiological variabilities of the gastrointestinal tract as well as to maintain drug concentrations within the therapeutic window. In the market, they are available only as solid dosage forms such as capsules or tablets. The development of a liquid oral dosage form with modified-release properties has been keenly awaited. This form could increase the compliance of patients with a swallowing impairment (i.e. paediatric, older or critically ill patients) and, consequently, the efficacy of the therapeutic treatment. In this study, a new technology has been developed that consists of multi-layered particles suspended extemporaneously in a syrup. Omeprazole and budesonide have been employed as model drugs. The coating procedure was optimized to obtain a yield of minimum 90% w/w and a median diameter below 500 µm. Once the final suspension is prepared extemporaneously, it presents sufficient stability to guarantee the administration of multiple doses filled into a syrup bottle and kept for a limited storage time at room temperature (e.g. up to 10 doses to be administered within 10 days). / Doctorat en Sciences biomédicales et pharmaceutiques (Pharmacie) / info:eu-repo/semantics/nonPublished
| Identifer | oai:union.ndltd.org:ulb.ac.be/oai:dipot.ulb.ac.be:2013/312267 |
| Date | 08 September 2020 |
| Creators | Ronchi, Federica |
| Contributors | Amighi, Karim, Goole, Jonathan, Kauffmann, Jean-Michel, De Braekeleer, Kris, Dufrasne, François, Gazzaniga, Andrea AG, Mueller Albers, Jessica JMA |
| Publisher | Universite Libre de Bruxelles, Université libre de Bruxelles, Faculté de Pharmacie, Bruxelles |
| Source Sets | Université libre de Bruxelles |
| Language | English |
| Detected Language | English |
| Type | info:eu-repo/semantics/doctoralThesis, info:ulb-repo/semantics/doctoralThesis, info:ulb-repo/semantics/openurl/vlink-dissertation |
| Format | 3 full-text file(s): application/pdf | application/pdf | application/pdf |
| Rights | 3 full-text file(s): info:eu-repo/semantics/restrictedAccess | info:eu-repo/semantics/restrictedAccess | info:eu-repo/semantics/closedAccess |
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