Surface engineered excipients: III. Facilitating direct compaction tableting of binary blends containing fine cohesive poorly-compactable APIs
Document Type
Article
Publication Date
2-25-2019
Abstract
Direct compaction tableting, a desired manufacturing option, is infeasible for blends containing fine cohesive poorly-compactable APIs at higher drug loadings. In this study, the feasibility of using fine, dry coated excipients is investigated instead of dry coating of the APIs, as was done previously. Avicel PH-105 (20.1 µm) dry coated with 1 wt% hydrophilic silica A200 as an engineered excipient was blended with fine (11.3 µm) or semi-fine (30.2 µm) Acetaminophen, or Ibuprofen 50 (55.4 µm) in binary blends at low, medium and high drug loadings (10%, 30%, 60%). The blend uniformity, bulk density, flowability, as well as tablet properties such as friability, weight variation and strength demonstrate overall better performance compared to blends with Avicel PH-105, Prosolv 50 or Prosolv 90 as the excipient. These results along with processability maps of bulk density vs. FFC and tablet tensile strength vs. FFC indicate dry coated Avicel PH-105 could enable direct compaction for IBU50 and cAPAP at all drug loadings, and up to 30% drug loading for mAPAP. In contrast, Prosolv 90 failed for IBU50 at 60% drug loading, and for mAPAP at all drug loadings. Prosolv 50 could only enable direct compaction for IBU50 at all drug loadings. These unexpected outcomes suggest that for direct compaction of very fine, cohesive APIs at higher drug loadings, surface modified fine excipients perform better. A surprising outcome is the improvement in tablet strength for blends with dry coated Avicel PH-105 compared to uncoated Avicel PH-105 at higher drug loading, especially considering parts I and II showed that silica dry coating decreases the placebo tablet tensile strength.
Identifier
85059821887 (Scopus)
Publication Title
International Journal of Pharmaceutics
External Full Text Location
https://doi.org/10.1016/j.ijpharm.2018.12.055
e-ISSN
18733476
ISSN
03785173
PubMed ID
30597273
First Page
354
Last Page
365
Volume
557
Grant
EEC-0540855
Fund Ref
National Science Foundation
Recommended Citation
Chen, Liang; He, Zizhou; Kunnath, Kuriakose T.; Fan, Siqi; Wei, Yuhan; Ding, Xiaoyi; Zheng, Kai; and Davé, Rajesh N., "Surface engineered excipients: III. Facilitating direct compaction tableting of binary blends containing fine cohesive poorly-compactable APIs" (2019). Faculty Publications. 7779.
https://digitalcommons.njit.edu/fac_pubs/7779
