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Liu X, Shen L, Zhou L, Wu W, Liang G, Zhao Y, Wu W. Nucleotides as new co-formers in co-amorphous systems: Enhanced dissolution rate, water solubility and physical stability. Eur J Pharm Biopharm 2024; 200:114333. [PMID: 38768766 DOI: 10.1016/j.ejpb.2024.114333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 05/03/2024] [Accepted: 05/17/2024] [Indexed: 05/22/2024]
Abstract
Developing co-amorphous systems is an attractive strategy to improve the dissolution rate of poorly water-soluble drugs. Various co-formers have been investigated. However, previous studies revealed that it is a challenge to develop satisfied acidic co-formers, e.g., acidic amino acids showed much poorer co-former properties than neutral and basic amino acids. Only a few acidic co-formers have been reported, such as aspartic acid, glutamic acid, and some other organic acids. Thus, this study aims to explore the possibility of adenosine monophosphate and adenosine diphosphate used as acidic co-formers. Mebendazole, celecoxib and tadalafil were used as the model drugs. The drug-co-former co-amorphous systems were prepared via ball milling and confirmed using XRPD. The dissolution study suggested that the solubility and dissolution rate of the drug-co-formers systems were increased significantly compared to the corresponding crystalline and amorphous drugs. The stability study revealed that using the two nucleotides as co-formers enhanced the physical stability of pure amorphous drugs. Molecular interactions were observed in MEB-co-former and TAD-co-former systems and positively affected the pharmaceutical performance of the investigated co-amorphous systems. In conclusion, the two nucleotides could be promising potential acidic co-formers for co-amorphous systems.
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Affiliation(s)
- Xianzhi Liu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325024, Zhejiang, China
| | - Luyan Shen
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325024, Zhejiang, China
| | - Lin Zhou
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325024, Zhejiang, China
| | - Wencheng Wu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325024, Zhejiang, China
| | - Guang Liang
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325024, Zhejiang, China; Affiliated Yongkang First People's Hospital and School of Pharmacy, Hangzhou Medical College, Hangzhou 310014, Zhejiang, China
| | - Yunjie Zhao
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China
| | - Wenqi Wu
- Chemical Biology Research Center, School of Pharmaceutical Sciences, Wenzhou Medical University, Wenzhou 325035, Zhejiang, China; Wenzhou Institute, University of Chinese Academy of Sciences, Wenzhou 325024, Zhejiang, China.
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2
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Shu Y, Zhao P, Li X, Shi X, Fu Q. Counter-intuitive discovery in the formulation of poorly water-soluble drugs: Amorphous small-molecule gels. Med Res Rev 2024. [PMID: 38807483 DOI: 10.1002/med.22060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/02/2024] [Accepted: 05/20/2024] [Indexed: 05/30/2024]
Abstract
Amorphous strategies have been extensively used in improving the dissolution of insoluble drugs for decades due to their high free energy. However, the formation of amorphous small-molecule gels (ASMGs) presents a counter-intuitive discovery that significantly limits their practical application. Recently, ASMGs have garnered attention because of their noncovalent structures, excellent biodegradability, and significant potential in various drug delivery systems in the pharmaceutical field. Hence, a comprehensive review is necessary to contribute to a better understanding of recent advances in ASMGs. This review aimed to introduce the main formation mechanisms, summarize possible influencing factors, generalize unique properties, outline elimination strategies, and discuss clinical application potential with preclinical cases of ASMGs. Moreover, few ASMGs are advanced to clinical stages. Intensive clinical research is needed for further development. We hope that this review can provide more efficient and rational guidance for exploring further clinical applications of ASMGs.
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Affiliation(s)
- Yecheng Shu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Peixu Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Xin Li
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
| | - Xianbao Shi
- Department of Pharmacy, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Qiang Fu
- Wuya College of Innovation, Shenyang Pharmaceutical University, Shenyang, China
- Key Laboratory of Innovative Traditional Chinese Medicine for Major Chronic Diseases of Liaoning Province, Shenyang, China
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3
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Jiao X, Peng X, Jin X, Liu N, Yu Y, Liu R, Li Z. Nano-composite system of traditional Chinese medicine for ocular applications: molecular docking and three-dimensional modeling insight for intelligent drug evaluation. Drug Deliv Transl Res 2023; 13:3132-3144. [PMID: 37355484 DOI: 10.1007/s13346-023-01376-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/30/2023] [Indexed: 06/26/2023]
Abstract
The absorption of drugs was impeded in the posterior part of the eye due to the special structure. In addition, it was crucial to comprehend transport laws of molecules in ocular drug delivery for designing effective strategies. However, the current quality evaluation methods of the eye were backward and lack of dynamic monitoring of drug processes in vivo. Herein, nano-drug delivery system and three-dimensional (3D) model were combined to overcome the problems of low bioavailability and diffusion law. The model drugs were screened by molecular docking. The flexible nano-liposome (FNL) and temperature-sensitive gel (TSG) composite formulation was characterized through comprehensive evaluation. COMSOL software was utilized to build 3D eyeball to predict the bioavailability of drugs. The size of the preparation was about 98.34 nm which is relatively optimal for the enhanced permeability of the eyes. The formulation showed a stronger safety and non-irritant. The pharmacokinetics results of aqueous humor showed that the AUC of two drugs in this system increased by 3.79 and 3.94 times, respectively. The results of 3D calculation model proved that the concentrations of drugs reaching the retina were 1.90×10-5 mol/m3 and 6.37×10-6 mol/m3. In conclusion, the FNL-TSG markedly improved the bioavailability of multiple components in the eye. More importantly, a simplified 3D model was developed to preliminarily forecast the bioavailability of the retina after drug infusion, providing technical support for the accurate evaluation of ocular drug delivery. It provided new pattern for the development of intelligent versatile ophthalmic preparations.
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Affiliation(s)
- Xinyi Jiao
- State Key Laboratory of Component‑Based Chinese Medicine, College of Pharmaceutical Engineering of Traditional Chinese Medicine, Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Xingru Peng
- State Key Laboratory of Component‑Based Chinese Medicine, College of Pharmaceutical Engineering of Traditional Chinese Medicine, Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Xin Jin
- Military Medicine Section, Dongli District, Logistics University of People's Armed Police Force, 1 Huizhihuan Road, Tianjin, 300309, China
| | - Ning Liu
- State Key Laboratory of Component‑Based Chinese Medicine, College of Pharmaceutical Engineering of Traditional Chinese Medicine, Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Yang Yu
- State Key Laboratory of Component‑Based Chinese Medicine, College of Pharmaceutical Engineering of Traditional Chinese Medicine, Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
| | - Rui Liu
- State Key Laboratory of Component‑Based Chinese Medicine, College of Pharmaceutical Engineering of Traditional Chinese Medicine, Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China.
| | - Zheng Li
- State Key Laboratory of Component‑Based Chinese Medicine, College of Pharmaceutical Engineering of Traditional Chinese Medicine, Haihe Laboratory of Modern Chinese Medicine, Tianjin University of Traditional Chinese Medicine, Tianjin, 301617, China
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4
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Bordawekar MS, Pudipeddi M, Ruegger CE, Dhareshwar SS. Formulation Intervention to Overcome Decreased Kinetic Solubility of a Low T g Amorphous Drug. AAPS PharmSciTech 2023; 24:149. [PMID: 37420118 DOI: 10.1208/s12249-023-02601-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 05/30/2023] [Indexed: 07/09/2023] Open
Abstract
This technical note investigated the loss of dissolution rate during accelerated stability studies with a dry blend capsule formulation containing an amorphous salt of drug NVS-1 (Tg 76°C). After 6 m at 40°C/75%RH, dissolution of NVS-1 was ≤40% of initial value. Scanning electron microscope characterization of the undissolved capsule contents from samples stored at 50°C/75%RH for 3 weeks showed agglomeration with a distinct "melt and fuse" morphology of particles. At elevated temperature and humidity conditions, undesired sintering among the amorphous drug particles was observed. Humidity plasticizes the drug as the stability temperature (T) gets closer to the glass transition temperature (Tg) of the amorphous salt (i.e., smaller Tg-T); a decreased viscosity favors viscoplastic deformation and sintering of drug particles. When moisture is adsorbed onto agglomerated drug particles, partial dissolution of the drug forms a viscous surface layer, further reducing the rate of dissolution media penetration into the bulk solid, hence the slower dissolution rate. Formulation intervention focused on the use of L-HPC and fumed silica as disintegrant and glidant and the removal of the hygroscopic crospovidone. Reformulation improved dissolution performance at short-term accelerated stability conditions of 50°C (± 75%RH); however, sintering to a lesser extent was still observed at high humidity, impacting the dissolution rate. We infer reducing the impact of moisture at high humidity conditions in a formulation with a 34% drug load is challenging. Future formulation efforts will focus on the addition of water scavengers, reducing drug load by ~50% to physically separate drug particles by water-insoluble excipients, and optimizing disintegrant levels.
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Affiliation(s)
- Mangesh S Bordawekar
- Technical Portfolio and Project Management, Technical Research and Development, Novartis Pharmaceuticals Corporation, East Hanover, New Jersey, 07936, USA
| | - Madhu Pudipeddi
- Technical Research and Development, Novartis Pharmaceuticals Corporation, East Hanover, New Jersey, 07936, USA
- Prelude Therapeutics, 200 Powder Mill Road, Wilmington, Delaware, 19803, USA
| | - Colleen E Ruegger
- Technical Portfolio and Project Management, Technical Research and Development, Novartis Pharmaceuticals Corporation, East Hanover, New Jersey, 07936, USA
| | - Sundeep S Dhareshwar
- Global Program Management, Novartis Pharmaceuticals Corporation, East Hanover, New Jersey, 07936, USA.
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5
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Han J, Zhang C, Zhang Y, Liu X, Wang J. Mechanistic insight into gel formation of co-amorphous resveratrol and piperine during dissolution process. Int J Pharm 2023; 634:122644. [PMID: 36716831 DOI: 10.1016/j.ijpharm.2023.122644] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Revised: 01/02/2023] [Accepted: 01/21/2023] [Indexed: 01/28/2023]
Abstract
Different from previous co-amorphous systems, co-amorphous resveratrol and piperine (namely RES-PIP CM) showed much lower dissolution in comparison to the original two crystalline drugs owing to its gel formation during dissolution. The purpose of this study is to investigate the mechanism of gel formation and seek strategies to eliminate such gelation. It was found that the dissolution performance of RES-PIP CM and the properties of formed gels were significantly affected by the medium temperature and stoichiometric ratio of components. Multiple characterization results confirmed that the gelation process underwent the decrease of Tg caused by water plasticization, and then entered into its supercooled liquid state with high viscosity, accompanied by self-assembly of molecules. Furthermore, the study answered the question that whether such gelation of RES-PIP CM could be eliminated by porous carrier materials. The materials, mesoporous silica (MES) and attapulgite (ATT), provided barrier and well separation between molecules and particles of RES-PIP CM by the pore steric hindrance, and impeded the self-assembly and aggregation, hence achieving the degelation and dissolution improvement. The present study highlights the importance of recognizing gelation potential of some co-amorphous formulations, and provides an effective strategy to eliminate gelation in developing high quality co-amorphous drug products.
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Affiliation(s)
- Jiawei Han
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, P.R., China
| | - Chuchu Zhang
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, P.R., China
| | - Yanpei Zhang
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, P.R., China
| | - Xiaoqian Liu
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, P.R., China.
| | - Jue Wang
- School of Pharmacy & School of Biological and Food Engineering, Changzhou University, Changzhou 213164, P.R., China.
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6
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Teng M, Li J, Li Z, Zhang G, Zhao P, Fu Q. Recrystallization Mediates the Gelation of Amorphous Drugs: The Case of Acemetacin. Pharmaceutics 2023; 15:pharmaceutics15010219. [PMID: 36678848 PMCID: PMC9860709 DOI: 10.3390/pharmaceutics15010219] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2022] [Revised: 12/30/2022] [Accepted: 01/06/2023] [Indexed: 01/11/2023] Open
Abstract
Amorphization is widely used as an effective method of increasing the solubility of insoluble drugs. However, some amorphous drugs exhibit a much lower dissolution rate than their corresponding crystalline form due to their gelation. In this study, we reported the gels formed from amorphous acemetacin (ACM) for the first time. Gelation was promoted at conditions of lower pH, higher temperature and lower ionic strength. Solid-state characterizations suggested that ACM gels may be formed by recrystallization. This mechanism provides a new direction in facilitating the elimination of gelation for amorphous drugs. Moreover, it also provides the basis for the development of sustained-release formulations using the gelation properties.
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Affiliation(s)
| | | | | | | | | | - Qiang Fu
- Correspondence: ; Tel./Fax: +86-24-23986325
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7
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Han J, Wei Y, Li L, Song Y, Pang Z, Qian S, Zhang J, Gao Y, Heng W. Gelation Elimination and Crystallization Inhibition by Co-Amorphous Strategy for Amorphous Curcumin. J Pharm Sci 2023; 112:182-194. [PMID: 35901945 DOI: 10.1016/j.xphs.2022.07.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2022] [Revised: 07/20/2022] [Accepted: 07/20/2022] [Indexed: 11/27/2022]
Abstract
In the previous study, the development of amorphous curcumin (CUR) aimed to enhance the solubility/dissolution of CUR by disrupting its crystal lattice, but it unexpectedly showed a decreased dissolution than its crystalline counterpart on account of gel formation in its dissolution process. Whether such gelation could be eliminated by co-amorphous strategy was answered in this study. Herein, CUR by co-amorphization with chlorogenic acid (CHA) was successfully prepared using quench cooling. The formed co-amorphous material (namely CUR-CHA CM) eliminated the gelation and hence performed superior dissolution performance than crystalline/amorphous CUR. Meanwhile, it exhibited higher physical stability than amorphous CUR during dissolution as well as under long-term/accelerated conditions. To further study the such enhancement mechanism, the internal molecular interactions were investigated for CUR-CHA CM in the solid state as well as in aqueous solution. FTIR and solid-state 13C NMR spectra confirmed that intermolecular hydrogen bonds formed between CUR and CHA after co-amorphization. Furthermore, the nucleation of CUR was significantly inhibited by CHA in an aqueous solution, thus maintaining the supersaturated dissolution for a long time. The present study offers a feasible strategy to eliminate gelation and enhance stability of amorphous solids by co-amorphization and crystallization inhibition.
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Affiliation(s)
- Jiawei Han
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China; School of Pharmacy, Changzhou University, Changzhou, 213164, PR China
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Luyuan Li
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Yutong Song
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Weili Heng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China.
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8
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Su M, Zhang J, Li Z, Wei Y, Zhang J, Pang Z, Gao Y, Qian S, Heng W. Recent advances on small molecular gels: formation mechanism and their application in pharmaceutical fields. Expert Opin Drug Deliv 2022; 19:1597-1617. [PMID: 36259939 DOI: 10.1080/17425247.2022.2138329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
INTRODUCTION As an essential complement to chemically cross-linked macromolecular gels, drug delivery systems based on small molecular gels formed under the driving forces of non-covalent interactions are attracting considerable research interest due to their potential advantages of high structural functionality, lower biological toxicity, reversible stimulus-response, and so on. AREA COVERED The present review summarizes recent advances in small molecular gels and provides their updates as a comprehensive overview in terms of gelation mechanism, gel properties, and physicochemical characterizations. In particular, this manuscript reviews the effects of drug-based small molecular gels on the drug development and their potential applications in the pharmaceutical fields. EXPERT OPINION Small molecular-based gel systems, constructed by inactive compounds or active pharmaceutical ingredients, have been extensively studied as carriers for drug delivery in pharmaceutical field, such as oral formulations, injectable formulations, and transdermal formulations. However, the construction of such gel systems yet faces several challenges such as rational and efficient design of functional gelators and the great occasionality of drug-based gel formation. Thus, a deeper understanding of the gelation mechanism and its relationship with gel properties will be conducive to the construction of small molecular gels systems and their future application.
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Affiliation(s)
- Meiling Su
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jingwen Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Zudi Li
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Weili Heng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, China
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Chen X, Li D, Zhang H, Duan Y, Huang Y. Co-amorphous Systems of Sinomenine with Platensimycin or Sulfasalazine: Physical Stability and Excipient-Adjusted Release Behavior. Mol Pharm 2022; 19:4370-4381. [PMID: 36251509 DOI: 10.1021/acs.molpharmaceut.2c00785] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
There is strong interest to develop affordable treatments for the infection-associated rheumatoid arthritis (RA). Here, we present a drug-drug co-amorphous strategy against RA and the associated bacterial infection by the preparation and characterization of two co-amorphous systems of sinomenine (SIN) with platensimycin (PTM) or sulfasalazine (SULF), two potent antibiotics. Both of them were comprehensively characterized using powder X-ray diffraction, temperature-modulated differential scanning calorimetry, Fourier transform infrared spectroscopy, and X-ray photoelectron spectroscopy. The co-amorphous forms of SIN-PTM and SIN-SULF exhibited high Tgs at 139.10 ± 1.0 and 153.3 ± 0.2 °C, respectively. After 6 months of accelerated tests and 1 month of drug-excipient compatibility experiments, two co-amorphous systems displayed satisfactory physical stability. The formation of salt and strong intermolecular interactions between SIN and PTM or SULF, as well as the decreased molecular mobility in co-amorphous systems, may be the intrinsic mechanisms underlying the excellent physical stability of both co-amorphous systems. In dissolution tests, two co-amorphous systems displayed distinct reduced SIN-accumulative releases (below 20% after 6 h of release experiments), which may lead to its poor therapeutic effect. Hence, we demonstrated a controlled release strategy for SIN by the addition of a small percentage of polymers and a small-molecule surfactant to these two co-amorphous samples as convenient drug excipients, which may also be used to improve the unsatisfactory dissolution behaviors of the previously reported SIN co-amorphous systems. Several hydrogen bonding interactions between SIN and PTM or SULF could be identified in NMR experiments in DMSO-d6, which may be underlying reasons of decreased dissolution behaviors of both co-amorphous forms. These drug-drug co-amorphous systems could be a potential strategy for the treatment of infection-associated RA.
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Affiliation(s)
- Xin Chen
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, Hunan410013, PR China
| | - Duanxiu Li
- Laboratory of Magnetic Resonance Spectroscopy and Imaging, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou215123, PR China.,Guangdong Institute of Semiconductor Micro-Nano Manufacturing Technology, Foshan528200, PR China
| | - Hailu Zhang
- Laboratory of Magnetic Resonance Spectroscopy and Imaging, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou215123, PR China
| | - Yanwen Duan
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, Hunan410013, PR China.,Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha410011, PR China.,National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, Hunan410011, PR China
| | - Yong Huang
- Xiangya International Academy of Translational Medicine, Central South University, Changsha, Hunan410013, PR China.,National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha, Hunan410011, PR China
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10
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Shen P, Zhang C, Hu E, Pang Z, Gao Y, Qian S, Zhang J, Wei Y, Heng W. Gelation switch of polyamorphic indomethacin depending on the thermal procedure. Eur J Pharm Biopharm 2022; 177:249-259. [PMID: 35870760 DOI: 10.1016/j.ejpb.2022.07.008] [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: 04/22/2022] [Revised: 07/13/2022] [Accepted: 07/18/2022] [Indexed: 11/29/2022]
Abstract
Amorphous indomethacin (IMC) prepared under different thermal procedures via melt quenching method showed significantly different dissolution behaviors. This study aims to investigate the influence of thermal procedures on the formation of IMC polyamorphism and to explore the mechanism for their different dissolution behaviors. Amorphous IMC samples were prepared by melting crystalline IMC under a series of temperatures (160-195 °C), respectively, followed by quenching in liquid nitrogen. Samples obtained under 170 °C exhibited bi-halo shapes at ∼15° and ∼26° (2θ), while the ones above 175 °C showed a single halo at ∼21° (2θ), suggesting amorphous IMC prepared under different thermal procedures probably have different local molecular arrangements. In comparison to crystalline IMC, amorphous IMC obtained under 170 °C showed significantly higher dissolution profiles with good dispersibility in aqueous medium, however, all amorphous IMC samples prepared above 175 °C demonstrated much lower dissolution with significant gelation, which seemed like a gelation switch existed for polyamorphic IMC when the preparation temperature was between 170 and 175 °C. Based on physicochemical characterizations, amorphous IMC prepared under 170 °C had higher surface free energy, more surficial hydrophilic groups and better wettability than the ones made above 175 °C. Molecular dynamics simulations revealed that the amorphous samples prepared below 170 °C had similar binding energy values in the range of 310.045-325.479 kcal/mol, while those prepared above 175 °C were significantly lower within 212.193-235.073 kcal/mol. Such binding energy difference might be responsible for their different local molecular arrangements after different thermal procedures. The current study deeply reminds us that the thermal procedure of preparation methods may significantly affect the physicochemical properties of amorphous materials, which should be paid special attention to the polymorphic selection during pharmaceutical development.
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Affiliation(s)
- Peiya Shen
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Chunfeng Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Enshi Hu
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Weili Heng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
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11
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Lin Z, Pang Z, Zhang K, Qian Z, Liu Z, Zhang J, Gao Y, Wei Y. Effect of sodium lauryl sulfate-mediated gelation on the suppressed dissolution of crystalline lurasidone hydrochloride and a strategy to mitigate the gelation. Int J Pharm 2022; 624:122035. [PMID: 35863597 DOI: 10.1016/j.ijpharm.2022.122035] [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: 04/22/2022] [Revised: 07/05/2022] [Accepted: 07/16/2022] [Indexed: 10/17/2022]
Abstract
In dissolution test, the surfactant sodium lauryl sulfate (SLS) is usually added to increase the dissolution of insoluble drugs and achieve the sink condition. However, the current study found that 0.1 % SLS would significantly decrease the dissolution of crystalline lurasidone hydrochloride (LH, a BCS Ⅱ drug). The aim of this study was to clarify the mechanism of this unexpected phenomenon and explore a strategy for mitigating the negative effect of SLS on the dissolution of LH. Sample characterizations (such as PLM, DSC, PXRD, IR and NMR) confirmed that the insoluble single-phase amorphous LH-SLS complex (with a single Tg at 35.2 °C) formed during dissolution in 0.1 % SLS aqueous solution via electrostatic interaction, tetrel bond interaction, and hydrophobic effect. Due to the plasticization effect of water, the transition of amorphous LH-SLS from its glassy state to viscous supercooled liquid state led to the gel formation, and suppressd the dissolution of LH. Meanwhile, the solubility curve of LH in SLS aqueous solution at various concentrations exhibited an unusual V-shaped feature, with the CMC value of SLS serving as the inflection point, since the gel degree was attenuated due to the micelle solubilization of SLS. Additionally, an innovative strategy was developed to alleviate the inhibiting effect of SLS on LH dissolution based on the potential competitive interactions. This study not only enriches the internal mechanism of surfactant-inhibited drug dissolution but also informs an effective strategy to mitigate the gelation.
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Affiliation(s)
- Zezhi Lin
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Ke Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Zhengjie Qian
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Zhenjing Liu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
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12
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Kapourani A, Chatzitheodoridou M, Valkanioti V, Manioudaki AE, Bikiaris ND, Barmpalexis P. Evaluating the effect of kosmotropic inorganic salts in the in vitro dissolution behavior of tablets containing amorphous indomethacin-polyvinylpyrrolidone solid dispersions. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Chen X, Li D, Duan Y, Huang Y. Characterization of co-amorphous sinomenine-tranilast systems with strong intermolecular interactions and sustained release profiles. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103296] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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14
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Hu D, Chen X, Li D, Zhang H, Duan Y, Huang Y. Sustained Release of Co-Amorphous Matrine-Type Alkaloids and Resveratrol with Anti-COVID-19 Potential. Pharmaceutics 2022; 14:603. [PMID: 35335977 PMCID: PMC8949968 DOI: 10.3390/pharmaceutics14030603] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 03/02/2022] [Accepted: 03/07/2022] [Indexed: 01/18/2023] Open
Abstract
Matrine (MAR), oxymatrine (OMAR), and sophoridine (SPD) are natural alkaloids with varying biological activities; matrine was recently used for the treatment of coronavirus disease 2019 (COVID-19). However, the short half-lives and rapid elimination of these matrine-type alkaloids would lead to low oral bioavailability and serious side effects. Herein, resveratrol (RES) was selected as a co-former to prepare their co-amorphous systems to improve the therapeutic index. The formation of co-amorphous MAR-RES, OMAR-RES, and SPD-RES was established through powder X-ray diffraction and modulated temperature differential scanning calorimetry. Furthermore, Fourier transform infrared spectroscopy and NMR studies revealed the strong molecular interactions between resveratrol and these alkaloids, especially OMAR-RES. Matrine, oxymatrine, and sophoridine in the co-amorphous systems showed sustained release behaviors in the dissolution experiments, due to the recrystallization of resveratrol on the surface of co-amorphous drugs. The three co-amorphous systems exhibited excellent physicochemical stability under high relative humidity conditions. Our study not only showed that minor structural changes of active pharmaceutical ingredients may have distinct molecular interactions with the co-former, but also discovered a new type of sustained release mechanism for co-amorphous drugs. This promising co-amorphous drug approach may present a unique opportunity for repurposing these very promising drugs against COVID-19.
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Affiliation(s)
- Dandan Hu
- Xiangya International Academy of Translational Medicine, Central South University, Changsha 410013, China; (D.H.); (X.C.); (Y.D.)
| | - Xin Chen
- Xiangya International Academy of Translational Medicine, Central South University, Changsha 410013, China; (D.H.); (X.C.); (Y.D.)
| | - Duanxiu Li
- Laboratory of Magnetic Resonance Spectroscopy and Imaging, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; (D.L.); (H.Z.)
- Guangdong Institute of Semiconductor Micro-Nano Manufacturing Technology, Foshan 528200, China
| | - Hailu Zhang
- Laboratory of Magnetic Resonance Spectroscopy and Imaging, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, China; (D.L.); (H.Z.)
| | - Yanwen Duan
- Xiangya International Academy of Translational Medicine, Central South University, Changsha 410013, China; (D.H.); (X.C.); (Y.D.)
- Hunan Engineering Research Center of Combinatorial Biosynthesis and Natural Product Drug Discovery, Changsha 410011, China
- National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha 410011, China
| | - Yong Huang
- Xiangya International Academy of Translational Medicine, Central South University, Changsha 410013, China; (D.H.); (X.C.); (Y.D.)
- National Engineering Research Center of Combinatorial Biosynthesis for Drug Discovery, Changsha 410011, China
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15
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Han J, Li L, Yu Q, Zheng D, Song Y, Zhang J, Gao Y, Heng W, Qian S, Pang Z. Self-gelation involved in the transformation of resveratrol and piperine from a co-amorphous system into a co-crystal system. CrystEngComm 2022. [DOI: 10.1039/d2ce00671e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Self-gelation of co-amorphous system promotes the transformation into its co-crystal system during dissolution.
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Affiliation(s)
- Jiawei Han
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R. China
- School of Pharmacy, Changzhou University, Changzhou, 213164, P.R. China
| | - Luyuan Li
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R. China
| | - Qian Yu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R. China
| | - Daoyi Zheng
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R. China
| | - Yutong Song
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R. China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R. China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R. China
| | - Weili Heng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R. China
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R. China
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R. China
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16
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Han J, Li L, Pang Z, Su M, He X, Qian S, Zhang J, Gao Y, Wei Y. Mechanistic insight into gel-induced aggregation of amorphous curcumin during dissolution process. Eur J Pharm Sci 2021; 170:106083. [PMID: 34973361 DOI: 10.1016/j.ejps.2021.106083] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Revised: 10/21/2021] [Accepted: 11/17/2021] [Indexed: 01/11/2023]
Abstract
Amorphous curcumin (CUR) exhibited a decreased dissolution rate in comparison with the crystalline counterpart due to its gel formation during dissolution. The main purpose of the present study is to explore the mechanism of such gelation phenomenon. It was found that the dissolution of amorphous CUR and gel properties were influenced by the temperature and pH of the media. The formed gels were characterized by TPA, SEM, DSC, XRPD, FTIR and PLM. The results indicated that the gelation process led to the formation of a porous structure in which water molecules infiltrate, and entered into its supercooled liquid state with high viscosity when contacting aqueous media, accompanied by decreased Tg and crystalline transformation. In addition, mixing with hydrophilic excipients (such as hydrophilic silica) accelerated the gel formation of amorphous CUR, while the addition of hydrophobic excipients (such as hydrophobic silica and magnesium stearate) could effectively weaken and even eliminate the gelation, hence significantly improving its dissolution. Furthermore, according to contact angle measurement and fluorescence microscope observation, hydrophilic excipients were found to be able to accelerate water entering into the interior of amorphous CUR, hence facilitating the gelation, while hydrophobic excipients would hinder water infiltration into the powder and thus achieve degelation. In conclusion, it is important to recognize that the gelation potential of some amorphous materials should be considered in developing robust amorphous drug product of high quality and performance.
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Affiliation(s)
- Jiawei Han
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R., China
| | - Luyuan Li
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R., China
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R., China
| | - Meiling Su
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R., China
| | - Xiaoshuang He
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R., China
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R., China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R., China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R., China.
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, P.R., China.
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17
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Shi Q, Li F, Yeh S, Moinuddin SM, Xin J, Xu J, Chen H, Ling B. Recent Advances in Enhancement of Dissolution and Supersaturation of Poorly Water-Soluble Drug in Amorphous Pharmaceutical Solids: A Review. AAPS PharmSciTech 2021; 23:16. [PMID: 34893936 DOI: 10.1208/s12249-021-02137-0] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Accepted: 09/07/2021] [Indexed: 12/19/2022] Open
Abstract
Amorphization is one of the most effective pharmaceutical approaches to enhance the dissolution and oral bioavailability of poorly water-soluble drugs. In recent years, amorphous formulations have been experiencing rapid development both in theoretical and practical application. Based on using different types of stabilizing agents, amorphous formulations can be mainly classified as polymer-based amorphous solid dispersion, coamorphous formulation, mesoporous silica-based amorphous formulation, etc. This paper summarizes recent advances in the dissolution and supersaturation of these amorphous formulations. Moreover, we also highlight the roles of stabilizing agents such as polymers, low molecular weight co-formers, and mesoporous silica. Maintaining supersaturation in solution is a key factor for the enhancement of dissolution profile and oral bioavailability, and thus, the strategies and challenges for maintaining supersaturation are also discussed. With an in-depth understanding of the inherent mechanisms of dissolution behaviors, the design of amorphous pharmaceutical formulations will become more scientific and reasonable, leading to vigorous development of commercial amorphous drug products.
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18
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Su M, Pang Z, Li L, Ren J, Yuan F, Lv F, Han J, Wei Y, Gao Y, Zhang J, Qian S. Charge-assisted bond and molecular self-assembly drive the gelation of lenvatinib mesylate. Int J Pharm 2021; 607:121019. [PMID: 34416330 DOI: 10.1016/j.ijpharm.2021.121019] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 07/26/2021] [Accepted: 08/15/2021] [Indexed: 10/20/2022]
Abstract
Lenvatinib mesylate (LM) is a first-line anticancer agent for the treatment of unresectable hepatocellular carcinoma, while it formed viscoelastic hydrogel when contacting with aqueous medium, which would significantly hinder its in vitro dissolution. The aim of this study was to systematicly explore the gelation mechanism and gel properties via thermal analysis, rheology, morphology and spectroscopy studies. The formed hydrogel was found to be composed of a new polymorph of crystalline LM, and its mechanical strength depended on the cross-linking degree of the fibrillar network structure. Spectroscopy analyses revealed that the intermolecular hydrogen bonds (the bifurcated hydrogen bond between the adjacent urea groups and the NH⋯OC hydrogen bond between the primary amide groups) as well as π-π stacking interactions (between the benzene ring and the quinoline ring) were suggested to be the driving forces for the self-assembly of LM during gelation process. Additionally, no gelation phenomenon was observed when suspending the base form lenvatinib in water, while it could form gel in various acidic solutions (e.g. hydrochloric acid, phosphoric acid and methanesulfonic acid) because the regenerated N+-H group increased the solubility of lenvatinib and promoted the balance between the dissolution or aggregation of LX (X: acid radical ion) molecules in solutions. In conclusion, the charge-assisted bond N+-H in LM molecule and intermolecular non-covalent interactions drived the hydrogel formation of LM in aqueous media. This study elucidates the gelation mechanism and gel properties of LM hydrogel, which would be helpful to figure out strategy to eliminate its gelation fundamentally and pave the way for its further formulation development in future.
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Affiliation(s)
- Meiling Su
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Luyuan Li
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Junjie Ren
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Fang Yuan
- Nanjing F&S Pharmatech Co., Ltd., Nanjing 211805, PR China
| | - Fusheng Lv
- Nanjing F&S Pharmatech Co., Ltd., Nanjing 211805, PR China
| | - Jiawei Han
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, PR China.
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19
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Clarification of the Dissolution Mechanism of an Indomethacin/Saccharin/Polyvinylpyrrolidone Ternary Solid Dispersion by NMR Spectroscopy. J Pharm Sci 2020; 109:3617-3624. [DOI: 10.1016/j.xphs.2020.09.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Revised: 09/04/2020] [Accepted: 09/08/2020] [Indexed: 12/23/2022]
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20
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Zhang Y, Gao Y, Du X, Guan R, He Z, Liu H. Combining Co-Amorphous-Based Spray Drying with Inert Carriers to Achieve Improved Bioavailability and Excellent Downstream Manufacturability. Pharmaceutics 2020; 12:pharmaceutics12111063. [PMID: 33171591 PMCID: PMC7695141 DOI: 10.3390/pharmaceutics12111063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 10/31/2020] [Accepted: 11/02/2020] [Indexed: 01/03/2023] Open
Abstract
It is crucial to improve poorly water-soluble orally administered drugs through both preclinical and therapeutic drug discovery. A co-amorphous formulation consisting of two low molecular weight (MW) molecules offers a solubility/dissolubility advantage over its crystalline form by maintaining their amorphous status. Here, we report on a co-amorphous solid dispersion (SD) system that includes inert carriers (lactose monohydrate or microcrystalline cellulose) and co-amorphous sacubitril (SAC)-valsartan (VAL) using the spray drying process. The strong molecular interactions between drugs were the driving force for forming robust co-amorphous SDs. Our system provided the highest solubility with more than ~11.5- and 3.12-times solubility increases when compared with the physical mixtures. Co-amorphous lactose monohydrate (LM) SDs showed better bioavailability of APIs (~356.27.8% and 154.01% for the relative bioavailability of LBQ 657 and valsartan, respectively). Co-amorphous inert carrier SDs possessed an excellent compressibility for the production of a direct compression pharmaceutical product. In conclusion, these brand-new co-amorphous SDs could reduce the number of unit processes to produce a final pharmaceutical product for downstream manufacturability.
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21
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Han J, Wei Y, Lu Y, Wang R, Zhang J, Gao Y, Qian S. Co-amorphous systems for the delivery of poorly water-soluble drugs: recent advances and an update. Expert Opin Drug Deliv 2020; 17:1411-1435. [DOI: 10.1080/17425247.2020.1796631] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Jiawei Han
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Yan Lu
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Runze Wang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, P.R. China
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