Biowaiver extension potential and IVIVC for BCS class II drugs by formulation design: Case study for cyclosporine self-microemulsifying formulation

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Abstract

The objective of this work was to suggest the biowaiver potential of biopharmaceutical classification system (BCS) Class II drugs in self-microemulsifying drug delivery systems (SMEDDS) which are known to increase the solubility, dissolution and oral absorption of water-insoluble drugs. Cyclosporine was selected as a representative BCS Class II drug. New generic candidate of cyclosporine SMEDDS (test) was applied for the study with brand SMEDDS (reference I) and cyclosporine self-emulsifying drug delivery systems (SEDDS, reference II). Solubility and dissolution of cyclosporine from SMEDDS were critically enhanced, which were the similar behaviors with BCS class I drug. The test showed the identical dissolution rate and the equivalent bioavailability (0.34, 0.42 and 0.68 of p values for AUC0→24h, Cmax and Tmax, respectively) with the reference I. Based on the results, level A in vitro-in vivo correlation (IVIVC) was established from these two SMEDDS formulations. This study serves as a good example for speculating the biowaiver extension potential of BCS Class II drugs specifically in solubilizing formulation such as SMEDDS.

Original languageEnglish
Pages (from-to)1835-1842
Number of pages8
JournalArchives of Pharmacal Research
Volume33
Issue number11
DOIs
StatePublished - Dec 2010

Bibliographical note

Funding Information:
This work was supported by the Korea Research Foundation Grant funded by the Korean Government (MOEHRD, KRF-2006-214-E00039), and International R&D Center START-UP FUND Program funded by Incheon Free Economic Zone Authority(IFEZA) and Ministry of Knowledge and Economy (MKE).

Keywords

  • Biopharmaceutics classification system (BCS)
  • Biowaiver
  • Cyclosporine
  • In vitro-in vivo correlation (IVIVC)
  • Self-microemulsifying drug delivery systems (SMEDDS)

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