Malamatari, M;
Somavarapu, S;
Taylor, KMG;
Buckton, G;
(2016)
Solidification of nanosuspensions for the production of solid oral dosage forms and inhalable dry powders.
Expert Opinion on Drug Delivery
, 13
(3)
pp. 435-450.
10.1517/17425247.2016.1142524.
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Abstract
INTRODUCTION: Nanosuspensions combine the advantages of nanotherapeutics (e.g. increased dissolution rate and saturation solubility) with ease of commercialisation. Transformation of nanosuspensions to solid oral and inhalable dosage forms minimises the physical instability associated with their liquid state, enhances patient compliance and enables targeted oral and pulmonary drug delivery. AREAS COVERED: This review outlines solidification methods for nanosuspensions. It includes spray and freeze drying as the most widely used techniques. Fluidised-bed coating, granulation and pelletisation are also discussed as they yield nanocrystalline formulations with more straightforward downstream processing to tablets or capsules. Spray-freeze drying, aerosol flow reactor and printing of nanosuspensions are also presented as promising alternative solidification techniques. Results regarding the solid state, in vitro dissolution and/or aerosolisation efficiency of the nanocrystalline formulations are given and combined with available in vivo data. Focus is placed on the redispersibility of the solid nanocrystalline formulations, which is a prerequisite for their clinical application. EXPERT OPINION: A few solidified nanocrystalline products are already on the market and many more are in development. Oral and inhalable nanoparticle formulations are expected to have great potential especially in the areas of personalised medicine and delivery of high drug doses (e.g. antibiotics) to the lungs, respectively.
| Type: | Article |
|---|---|
| Title: | Solidification of nanosuspensions for the production of solid oral dosage forms and inhalable dry powders |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1517/17425247.2016.1142524 |
| Publisher version: | http://dx.doi.org/10.1517/17425247.2016.1142524 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | dry powder for inhalation, matrix former, nanosuspension, redispersibility, solid oral dosage forms, solidification |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > UCL School of Pharmacy UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > UCL School of Pharmacy > Pharmaceutics |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1473898 |
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