1
|
Koromili M, Kapourani A, Koletti A, Papandreou G, Assimopoulou AN, Lazari D, Barmpalexis P. Preparation and Evaluation of Siderol Amorphous Solid Dispersions: Selection of Suitable Matrix/Carrier. AAPS PharmSciTech 2022; 23:214. [PMID: 35918468 DOI: 10.1208/s12249-022-02368-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Accepted: 07/11/2022] [Indexed: 11/30/2022] Open
Abstract
The present study investigates the preparation of amorphous solid dispersions (ASD) for the ent-kaurane diterpenoid siderol (SDR). Initially, evaluation of the pure drug (isolated from Sideritis scardica) revealed that the API is a non-stable glass former, and hence the selection of a suitable ASD's matrix/carrier needs special attention. For this reason, four commonly used polymers and copolymers, namely poly(vinylpyrrolidone), copovidone, hydroxypropyl cellulose, and Soluplus® (SOL), were screened via film casting and crystal growth rate measurements. Amongst them, SOL showed the highest SDR's crystal growth rate reduction, and, since it was also miscible with the drug, it was selected for further testing. In this direction, SDR-SOL ASDs were successfully prepared via melt-quench cooling. These formulations showed full API amorphization, while good physical stability (i.e., a stable SDR amorphous dispersions) were obtained after storage for several months. Finally, evaluation of molecular interactions (with the aid of ATR-FTIR spectroscopy) showed strong H-bonds between SOL and SDR, while the use of molecular dynamics (MD) simulations unraveled the nature of these interactions. Therefore, based on the findings of the present work, SOL seems to be an appropriate matrix/carrier for the preparation of SDR ASDs, although further studies are needed in order to explore its full potentials.
Collapse
Affiliation(s)
- Maria Koromili
- Laboratory of Pharmaceutical Technology, Division of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.,Laboratory of Pharmacognosy, Division of Pharmacognosy-Pharmacology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece
| | - Afroditi Kapourani
- Laboratory of Pharmaceutical Technology, Division of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece
| | - Antigoni Koletti
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.,Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Natural Products Research Centre of Excellence-AUTH (NatPro-AUTH), 57001, Thessaloniki, Greece
| | - George Papandreou
- Laboratory of Pharmaceutical Technology, Division of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece
| | - Andreana N Assimopoulou
- Laboratory of Organic Chemistry, School of Chemical Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece.,Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Natural Products Research Centre of Excellence-AUTH (NatPro-AUTH), 57001, Thessaloniki, Greece
| | - Diamanto Lazari
- Laboratory of Pharmacognosy, Division of Pharmacognosy-Pharmacology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece
| | - Panagiotis Barmpalexis
- Laboratory of Pharmaceutical Technology, Division of Pharmaceutical Technology, School of Pharmacy, Faculty of Health Sciences, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece. .,Center for Interdisciplinary Research and Innovation (CIRI-AUTH), Natural Products Research Centre of Excellence-AUTH (NatPro-AUTH), 57001, Thessaloniki, Greece.
| |
Collapse
|