Incorporation of surface-modified dry micronized poorly water-soluble drug powders into polymer strip films
Document Type
Article
Publication Date
1-15-2018
Abstract
Recent work has established polymer strip films as a robust platform for delivery of poorly water-soluble drugs via slurry casting, in particular using stable drug nanosuspensions. Here, a simpler, robust method to directly incorporate dry micronized poorly water-soluble drug, fenofibrate (FNB), is introduced. As a major novelty, simultaneous surface modification using hydrophilic silica along with micronization was done using fluid energy mill (FEM) in order to reduce FNB hydrophobicity and powder agglomeration. It is hypothesized that silica coating promotes easy, uniform dispersion of micronized and coated FNB (MC-FNB) during direct mixing with aqueous hydroxypropyl methylcellulose (HPMC-E15LV) and glycerin solutions. Uniform dispersion leads to improved film critical quality attributes (CQAs) such as appearance, drug content uniformity and drug dissolution. The impact of polymer solution viscosity (low and high), mixer type (low versus high shear), and FNB surface modification on film CQAs were also assessed. Films with as-received FNB (AR-FNB) and micronized uncoated FNB (MU-FNB) were prepared as control. When MC-FNB powders were used, films exhibited improved appearance (thickness uniformity, visible lumps/agglomerates), better drug content uniformity (expressed as relative standard deviation), fast and immediate drug release, and enhanced mechanical properties (tensile strength, elongation percentage), regardless of the polymer solution viscosity or mixer type. These results compare favorably with those reported using nanosuspensions of FNB, establishing the feasibility of directly incorporating surface modified-micronized poorly water-soluble drug powders in film manufacturing.
Identifier
85034831955 (Scopus)
Publication Title
International Journal of Pharmaceutics
External Full Text Location
https://doi.org/10.1016/j.ijpharm.2017.11.040
e-ISSN
18733476
ISSN
03785173
PubMed ID
29170115
First Page
462
Last Page
472
Issue
1-2
Volume
535
Grant
EEC-0540855
Fund Ref
National Science Foundation
Recommended Citation
Zhang, Lu; Li, Yidong; Abed, Manal; and Davé, Rajesh N., "Incorporation of surface-modified dry micronized poorly water-soluble drug powders into polymer strip films" (2018). Faculty Publications. 8892.
https://digitalcommons.njit.edu/fac_pubs/8892
