title: Roller compaction: Application of an in-gap ribbon porosity calculation for the optimization of downstream granule flow and compactability characteristics.
abstract: This paper reports the use of an in-gap ribbon porosity calculation for the optimisation of roller compaction ribbon parameters in order to control downstream granule and tablet properties for a typical pharmaceutical formulation. The study demonstrates the effect of changes to roll speed and roll gap on the relative level of ribbon compaction for ribbons with equivalent in-gap porosities. It is demonstrated that in-gap ribbon porosity can be applied to enable optimization of the downstream granule processability characteristics for a typical pharmaceutical formulation and an understanding of the control space of a roller compaction process.
authors.affiliation: Biopharmaceutics R&D, Bristol-Myers Squibb, Reeds Lane, Moreton, Wirral, England.
authors.forename: John F
authors.initials: JF
authors.lastname: Gamble
authors.forename: Michael
authors.initials: M
authors.lastname: Tobyn
authors.forename: Andrew B
authors.initials: AB
authors.lastname: Dennis
authors.forename: Trupty
authors.initials: T
authors.lastname: Shah