Abstract:
PURPOSE:This study uses high drug content solid dispersions for dose window extension beyond current demonstrations using fused deposition modelling (FDM) to; i) accommodate pharmaceutically relevant doses of drugs of varying potencies at acceptable dosage form sizes and ii) enable enhanced dose flexibility via modular dosage form design concepts. METHODS:FDM was used to generate ~0.5 mm thick discs of varying diameter (2-10 mm) from melt-extruded feedstocks based on 10% to 50% w/w felodipine in ethyl cellulose. Drug content was determined by UV spectroscopy and dispensing precision from printed disc mass. RESULTS:Mean felodipine content was within ±5% of target values for all print volumes and compositions including contents as high as ~50% w/w. However, poor dispensing precision was evident at all print volumes. CONCLUSIONS:In pursuit of dose flexibility, this successful demonstration of dose window extension using high content solid dispersions preserves FDM design flexibility by maintaining applicability to drugs of varying potencies. The achieved uniformity of content supports the application of varying content solid dispersions to modular dosage form concepts to enhance dose flexibility. However, poor dispensing precision impedes its utilisation until appropriate compatibility between FDM hardware and materials at varying drug contents can be attained.
journal_name
Pharm Resjournal_title
Pharmaceutical researchauthors
Govender R,Abrahmsén-Alami S,Folestad S,Larsson Adoi
10.1007/s11095-019-2720-6subject
Has Abstractpub_date
2019-12-17 00:00:00pages
9issue
1eissn
0724-8741issn
1573-904Xpii
10.1007/s11095-019-2720-6journal_volume
37pub_type
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journal_title:Pharmaceutical research
pub_type: 杂志文章
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journal_title:Pharmaceutical research
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journal_title:Pharmaceutical research
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journal_title:Pharmaceutical research
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更新日期:2009-12-01 00:00:00
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journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1007/s11095-011-0606-3
更新日期:2012-03-01 00:00:00
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journal_title:Pharmaceutical research
pub_type: 杂志文章
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更新日期:2021-01-06 00:00:00
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pub_type: 临床试验,杂志文章
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更新日期:2009-10-01 00:00:00
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journal_title:Pharmaceutical research
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更新日期:2014-09-01 00:00:00
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journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1018987816891
更新日期:1999-07-01 00:00:00
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journal_title:Pharmaceutical research
pub_type: 杂志文章
doi:10.1023/a:1016462801968
更新日期:1987-04-01 00:00:00
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journal_title:Pharmaceutical research
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journal_title:Pharmaceutical research
pub_type: 杂志文章
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更新日期:2001-03-01 00:00:00
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pub_type: 杂志文章
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更新日期:1994-05-01 00:00:00
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journal_title:Pharmaceutical research
pub_type: 杂志文章
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更新日期:1998-09-01 00:00:00
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journal_title:Pharmaceutical research
pub_type: 杂志文章
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更新日期:1997-06-01 00:00:00
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pub_type: 杂志文章
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