"Aging" in co-amorphous systems: Dissolution decrease and non-negligible dissolution increase during storage without recrystallization.

Autor: Shen L; Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Science, Wenzhou 325024, Zhejiang, China., Liu X; Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Science, Wenzhou 325024, Zhejiang, China., Wu W; Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Science, Wenzhou 325024, Zhejiang, China., Zhou L; Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Science, Wenzhou 325024, Zhejiang, China., Liang G; Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Science, Wenzhou 325024, Zhejiang, China., Wang Y; Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China., Wu W; Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Science, Wenzhou 325024, Zhejiang, China. Electronic address: wenqiwu106@hotmail.com.
Jazyk: angličtina
Zdroj: International journal of pharmaceutics [Int J Pharm] 2024 Dec 25; Vol. 667 (Pt B), pp. 124943. Date of Electronic Publication: 2024 Nov 12.
DOI: 10.1016/j.ijpharm.2024.124943
Abstrakt: Developing co-amorphous systems is a promising strategy to improve the water solubility of poorly water-soluble drugs. Most of the studies focused on the initial dissolution rate of the fresh co-amorphous systems, and only physical stability was investigated after storage. However, the maintenance of the enhanced dissolution rate of co-amorphous systems after storage is necessary for further product development. The maintenance of amorphous forms after storage does not always mean the maintenance of the dissolution rate. In this study, indomethacin, arginine, tryptophan, and phenylalanine were used as the model drug and the co-formers to prepare co-amorphous systems and then stored under dry condition and RH 60 ± 5 % condition. No recrystallization was observed after the storage for 40 d and 80 d. Interestingly, both intrinsic dissolution rate (IDR) decrease and unexpected increase after storage were confirmed. The further mixing of IND and the co-former at a molecular level and the moisture changes of the co-amorphous systems during storage were supposed to play important roles in the aging. This study reminds us that the possible dissolution changes (both dissolution decrease and increase) of co-amorphous systems during storage should be carefully considered, though these samples maintained amorphous forms.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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