Abstract
Lipid excipients are attracting interest from drug developers due to their performance, ease of use, versatility and their potential to generate intellectual property through innovation in drug delivery, particularly in the case of controlled-drug release systems. Many articles have described the use of lipid excipients to develop matrix modified-release dosage forms using a range of processing techniques, therefore a comprehensive review is timely to synthesize and analyze the key information. This chapter focuses on the utility of lipid excipients in solid sustained drug delivery systems with emphasis on the efficiency and robustness of these systems with respect to: (i) the choice of the manufacturing process and its impact on drug release, (ii) the fundamental drug release mechanisms, (iii) resistance of the drug formulation under physiological conditions, and (iv) long term stability. Understanding the functionality of these versatile excipients in formulation is fundamental for the development of highly robust lipid-based sustained-release medicines.
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Abbreviations
- API:
-
Active pharmaceutical ingredient
- DCPD:
-
Dibasic calcium phosphate dihydrate
- GIT:
-
Gastrointestinal tract
- HLB:
-
Hydrophilic-lipophilic balance
- HME:
-
Hot melt extrusion
- HPC:
-
Hydroxypropyl cellulose
- HPMC:
-
Hydroxypropyl methyl cellulose
- MCC:
-
Microcrystalline cellulose
- MFT:
-
Minimum film forming temperature
- NLC:
-
Nanostructured lipid carrier
- PEG:
-
Polyethylene glycol
- PVP:
-
Poly(vinylpyrrolidone)
- SLN:
-
Solid lipid nanoparticles
- SR:
-
Sustained release
- Tg:
-
Glass-liquid transition temperature
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Declaration of interests
All authors are employed by Gattefosse SAS, the company that produces and commercializes Compritol® 888 ATO, Precirol® ATO 5 and the Gelucire® product brand. Editorial assistance for this manuscript, funded by Gattefosse SAS, was provided by Margaret Haugh, MediCom Consult.
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Rosiaux, Y., Jannin, V., Hughes, S., Marchaud, D. (2015). Solid Lipid Excipients as Matrix Agents for Sustained Drug Delivery. In: Narang, A., Boddu, S. (eds) Excipient Applications in Formulation Design and Drug Delivery. Springer, Cham. https://doi.org/10.1007/978-3-319-20206-8_9
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