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Steenweg C, Seifert AI, Böttger N, Wohlgemuth K. Process Intensification Enabling Continuous Manufacturing Processes Using Modular Continuous Vacuum Screw Filter. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.1c00294] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Claas Steenweg
- Department of Biochemical and Chemical Engineering, Laboratory of Plant and Process Design, TU Dortmund University, D-44227 Dortmund, Germany
| | - Astrid Ina Seifert
- Department of Biochemical and Chemical Engineering, Laboratory of Plant and Process Design, TU Dortmund University, D-44227 Dortmund, Germany
| | - Nils Böttger
- Department of Biochemical and Chemical Engineering, Laboratory of Plant and Process Design, TU Dortmund University, D-44227 Dortmund, Germany
| | - Kerstin Wohlgemuth
- Department of Biochemical and Chemical Engineering, Laboratory of Plant and Process Design, TU Dortmund University, D-44227 Dortmund, Germany
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Zettl M, Aigner I, Mannschott T, van der Wel P, Schröttner H, Khinast J, Krumme M. Characterization of a Novel Drying Technology for Continuous Processing of Cohesive Materials: An Ibuprofen Case Study. Org Process Res Dev 2021. [DOI: 10.1021/acs.oprd.0c00413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Manuel Zettl
- Research Center Pharmaceutical Engineering (RCPE) GmbH, 8010 Graz, Austria
| | - Isabella Aigner
- Research Center Pharmaceutical Engineering (RCPE) GmbH, 8010 Graz, Austria
| | | | | | - Hartmuth Schröttner
- Graz University of Technology, Institute for Electron Microscopy and Nanoanalysis, 8010 Graz, Austria
- Austrian Centre for Electron Microscopy and Nanoanalysis (FELMI-ZFE), 8010 Graz, Austria
| | - Johannes Khinast
- Research Center Pharmaceutical Engineering (RCPE) GmbH, 8010 Graz, Austria
- Graz University of Technology, Institute for Process and Particle Engineering, 8010 Graz, Austria
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Kreimer M, Aigner I, Lepek D, Khinast J. Continuous Drying of Pharmaceutical Powders Using a Twin-Screw Extruder. Org Process Res Dev 2018. [DOI: 10.1021/acs.oprd.8b00087] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Manuel Kreimer
- Research Center Pharmaceutical Engineering (RCPE) GmbH, 8010 Graz, Austria
| | - Isabella Aigner
- Research Center Pharmaceutical Engineering (RCPE) GmbH, 8010 Graz, Austria
| | - Daniel Lepek
- Research Center Pharmaceutical Engineering (RCPE) GmbH, 8010 Graz, Austria
- Department of Chemical Engineering, The Cooper Union, New York, New York 10003, United States
- Institute for Process and Particle Engineering, Graz University of Technology, 8010 Graz, Austria
| | - Johannes Khinast
- Research Center Pharmaceutical Engineering (RCPE) GmbH, 8010 Graz, Austria
- Institute for Process and Particle Engineering, Graz University of Technology, 8010 Graz, Austria
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Kelleher JF, Gilvary GC, Madi AM, Jones DS, Li S, Tian Y, Almajaan A, Senta-Loys Z, Andrews GP, Healy AM. A comparative study between hot-melt extrusion and spray-drying for the manufacture of anti-hypertension compatible monolithic fixed-dose combination products. Int J Pharm 2018; 545:183-196. [PMID: 29730176 DOI: 10.1016/j.ijpharm.2018.05.008] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 04/30/2018] [Accepted: 05/02/2018] [Indexed: 11/26/2022]
Abstract
The purpose of this work was to investigate the application of different advanced continuous processing techniques (hot melt extrusion and spray drying) to the production of fixed-dose combination (FDC) monolithic systems comprising of hydrochlorothiazide and ramipril for the treatment of hypertension. Identical FDC formulations were manufactured by the two different methods and were characterised using powder X-ray diffraction (PXRD) and modulated differential scanning calorimetry (mDSC). Drug dissolution rates were investigated using a Wood's apparatus, while physical stability was assessed on storage under controlled temperature and humidity conditions. Interestingly both drugs were transformed into their amorphous forms when spray dried, however, hydrochlorothiazide was determined, by PXRD, to be partially crystalline when hot melt extruded with either polymer carrier (Kollidon® VA 64 or Soluplus®). Hot melt extrusion was found to result in significant degradation of ramipril, however, this could be mitigated by the inclusion of the plasticizer, polyethylene glycol 3350, in the formulation and appropriate adjustment of processing temperature. The results of intrinsic dissolution rate studies showed that hot-melt extruded samples were found to release both drugs faster than identical formulations produced via spray drying. However, the differences were attributable to the surface roughness of the compressed discs in the Wood's apparatus, rather than solid state differences between samples. After a 60-day stability study spray dried samples exhibited a greater physical stability than the equivalent hot melt extruded samples.
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Affiliation(s)
- J F Kelleher
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin, Ireland
| | - G C Gilvary
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom
| | - A M Madi
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin, Ireland
| | - D S Jones
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom
| | - S Li
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom
| | - Y Tian
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom
| | - A Almajaan
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom
| | - Z Senta-Loys
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom
| | - G P Andrews
- School of Pharmacy, Queen's University Belfast, Belfast, Northern Ireland, United Kingdom
| | - A M Healy
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin, Ireland.
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Kreimer M, Aigner I, Sacher S, Krumme M, Mannschott T, van der Wel P, Kaptein A, Schroettner H, Brenn G, Khinast J. Mechanical strength of microspheres produced by drying of acoustically levitated suspension droplets. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2017.11.013] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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