Projects per year
Abstract
Molecular interactions are crucial to stabilize amorphous drugs in amorphous solid dispersions (ASDs). Most polymers, however, have only a limited ability to form strong molecular interactions with drugs. Polymers tailored to fit the physicochemical properties of the drug molecule to be incorporated, for instance by allowing the incorporation of specific functional groups, would be highly sought-for in this regard. For this purpose, the novel allyl-terminated polymer methoxy(polyethylene glycol)-block-poly(jasmine lactone) (mPEG-b-PJL) has been synthesized and functionalized to potentially enhance specific drug-polymer interactions. This study investigated the use of mPEG-b-PJL in ASDs, using carvedilol (CAR), a weakly basic model drug. The findings revealed that the acidic functionalized form of the polymer (mPEG-b-PJL-COOH) indeed established stronger molecular interactions with CAR compared to its non-functionalized counterpart mPEG-b-PJL. Evaluations on polymer effectiveness in forming ASDs demonstrated that mPEG-b-PJL-COOH outperformed its non-functionalized counterpart in miscibility, drug loading ability, and stability, inferred from reduced molecular mobility. However, dissolution tests indicated that ASDs with mPEG-b-PJL-COOH did not significantly improve the dissolution behaviour compared to amorphous CAR alone, despite potential solubility enhancement through micelle formation. Overall, this study confirms the potential of functionalized polymers in ASD formulations, while the challenge of improving dissolution performance in these ASDs remains an area of further development
Original language | English |
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Article number | 124175 |
Number of pages | 12 |
Journal | International Journal of Pharmaceutics |
Volume | 657 |
DOIs | |
Publication status | Published - 25 May 2024 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Functional polymer
- Molecular interactions
- Miscibility
- Drug-polymer solubility
- Molecular mobility
- Micelle formation
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Dive into the research topics of 'Utilizing the allyl-terminated copolymer methoxy(poly(ethylene glycol))-block-poly(jasmine lactone) in the development of amorphous solid dispersions: A comparative study of functionalized and non-functionalized polymer'. Together they form a unique fingerprint.Equipment
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Åbo Akademi Functional Printing Center
Toivakka, M. (PI), Rosenholm, J. (PI), Anttu, N. (PI), Bobacka, J. (PI), Huynh, T. P. (PI), Peltonen, J. (PI), Wang, X. (PI), Wilen, C.-E. (PI), Xu, C. (PI), Zhang, H. (PI) & Österbacka, R. (PI)
Faculty of Science and EngineeringFacility/equipment: Facility
Projects
- 1 Finished
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Jasmine PRO: A versatile platform for drug delivery
Rosenholm, J. (Principal Investigator), Wilen, C.-E. (Co-Principal Investigator), Soidinsalo, S. (Co-Principal Investigator), Bansal, K. (Co-Investigator) & Monaco, E. (Co-Investigator)
01/09/21 → 31/05/24
Project: Industry/Business Finland
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