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Tipduangta P, Chansakaow S, Tansakul P, Meungjai R, Dilokthornsakul P. Polymer Matrix and Manufacturing Methods in Solid Dispersion System for Enhancing Andrographolide Solubility and Absorption: A Systematic Review. Pharmaceutics 2024; 16:688. [PMID: 38794350 PMCID: PMC11125128 DOI: 10.3390/pharmaceutics16050688] [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: 04/02/2024] [Revised: 05/13/2024] [Accepted: 05/16/2024] [Indexed: 05/26/2024] Open
Abstract
Background: Andrographolide (ADG) has poor aqueous solubility and low bioavailability. This study systematically reviews the use of solid dispersion (SD) techniques to enhance the solubility and absorption of ADG, with a focus on the methods and polymers utilized. Methodology: We searched electronic databases including PubMed, Web of Science, Scopus®, Embase and ScienceDirect Elsevier® up to November 2023 for studies on the solubility or absorption of ADG in SD formulations. Two reviewers independently reviewed the retrieved articles and extracted data using a standardized form and synthesized the data qualitatively. Results: SD significantly improved ADG solubility with up to a 4.7-fold increase and resulted in a decrease in 50% release time (T1/2) to less than 5 min. SD could also improve ADG absorption, as evidenced by higher Cmax and AUC and reduced Tmax. Notably, Soluplus-based SDs showed marked solubility and absorption enhancements. Among the five SD techniques (rotary evaporation, spray drying, hot-melt extrusion, freeze drying and vacuum drying) examined, spray drying emerged as the most effective, enabling a one-step process without the need for post-milling. Conclusions: SD techniques, particularly using Soluplus and spray drying, effectively enhance the solubility and absorption of ADG. This insight is vital for the future development of ADG-SD matrices.
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Affiliation(s)
- Pratchaya Tipduangta
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (P.T.); (S.C.); (R.M.)
- The College of Herbal Pharmacy of Thailand, The Pharmacy Council of Thailand, Nonthaburi 11000, Thailand
| | - Sunee Chansakaow
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (P.T.); (S.C.); (R.M.)
- The College of Herbal Pharmacy of Thailand, The Pharmacy Council of Thailand, Nonthaburi 11000, Thailand
| | - Pimpimon Tansakul
- The College of Herbal Pharmacy of Thailand, The Pharmacy Council of Thailand, Nonthaburi 11000, Thailand
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Prince of Songkla University, Songkhla 90110, Thailand;
| | - Rungarun Meungjai
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand; (P.T.); (S.C.); (R.M.)
| | - Piyameth Dilokthornsakul
- Center for Medical and Health Technology Assessment (CM-HTA), Department of Pharmaceutical Care, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
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Shen J, Hu A, Yang Y, Nie T, Huang S, Cheng Z, Liu W. Ternary solid dispersions of lacidipine: Enhancing dissolution and supersaturation maintenance through strategic formulation optimization. Int J Pharm 2024; 654:123989. [PMID: 38467205 DOI: 10.1016/j.ijpharm.2024.123989] [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: 10/23/2023] [Revised: 02/08/2024] [Accepted: 03/09/2024] [Indexed: 03/13/2024]
Abstract
The study aimed to address the challenges related to insufficient dissolution and maintenance of supersaturation in binary solid dispersions. Lacidipine, categorized as a BCS class II drug, was employed as the model drug. A systematic screening of excipients was conducted to determine the most effective carriers for the formulations of the ternary solid dispersions, utilizing the solvent transfer method and equilibrium solubility measurements. Both binary and ternary solid dispersions were prepared via spray drying, and comprehensive physicochemical characterization confirmed the successful preparation of amorphous solid dispersions. In vitro dissolution tests, the ternary solid dispersion exhibited marked superiority over the binary solid dispersion in dissolution and maintenance of supersaturation. Furthermore, an exploration into the factors influencing the stability of ternary solid dispersions revealed their robust resistance under light-protected, room-temperature, and desiccated conditions. The formation of intermolecular hydrogen bonding within the molecules of the ternary solid dispersions significantly enhanced drug solubility and system stability. Strategic formulation optimization, coupled with judicious selection of suitable carrier types and ratios, may serve as a promising approach for designing supersaturated drug delivery systems.
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Affiliation(s)
- Jian Shen
- Xiangya School of Pharmaceutical Sciences, Central South University, Tongzipo road172, Changsha 410013, China
| | - Anna Hu
- Xiangya School of Pharmaceutical Sciences, Central South University, Tongzipo road172, Changsha 410013, China
| | - Yuxin Yang
- Xiangya School of Pharmaceutical Sciences, Central South University, Tongzipo road172, Changsha 410013, China
| | - Ting Nie
- Xiangya School of Pharmaceutical Sciences, Central South University, Tongzipo road172, Changsha 410013, China
| | - Siqi Huang
- Xiangya School of Pharmaceutical Sciences, Central South University, Tongzipo road172, Changsha 410013, China
| | - Zeneng Cheng
- Xiangya School of Pharmaceutical Sciences, Central South University, Tongzipo road172, Changsha 410013, China
| | - Wenjie Liu
- Xiangya School of Pharmaceutical Sciences, Central South University, Tongzipo road172, Changsha 410013, China.
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Ou Y, Zhu D. Enlarged pore of worm mesoporous silica nanoparticles improves anti-inflammatory drug absorption. Drug Deliv Transl Res 2023; 13:2475-2486. [PMID: 36940080 DOI: 10.1007/s13346-023-01326-7] [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: 03/06/2023] [Indexed: 03/21/2023]
Abstract
Searching for an effective pore-enlarging agent to form mesoporous silica nanoparticles (MSN) with a creative surface frame is of great importance. Herein, several polymers were attempted to be pore-enlarging agents to form seven types of worm mesoporous silica nanoparticles (W-MSN) and analgesic indometacin that exerted functions on inflammatory diseases (breast disease, arthrophlogosis, etc.) was studied to enhance its delivery efficiency. The porous morphology differences between MSN and W-MSN were that MSN had independent mesopores while the enlarged mesopores of W-MSN were interrelated and shaped as a worm. Among all these W-MSN, WG-MSN templated by hydroxypropyl cellulose acetate succinate HG with the highest drug-loading capacity (24.78%), shortest loading time (10 h), drug dissolution improvement of almost 4 times compared to that of the raw drug, and highest bioavailability (5.48 times higher than that of raw drug and 1.52 times higher than that of MSN) was an outstanding drug carrier and can shoulder the mission to deliver drugs with high efficiency.
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Affiliation(s)
- Yuying Ou
- Department of Breast Surgery, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China
| | - Demiao Zhu
- Department of Breast Surgery, the First Affiliated Hospital of Jinzhou Medical University, Jinzhou, China.
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Saha SK, Joshi A, Singh R, Dubey K. Review of industrially recognized polymers and manufacturing processes for amorphous solid dispersion based formulations. Pharm Dev Technol 2023; 28:678-696. [PMID: 37427544 DOI: 10.1080/10837450.2023.2233595] [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: 04/19/2023] [Revised: 06/27/2023] [Accepted: 07/02/2023] [Indexed: 07/11/2023]
Abstract
Evolving therapeutic landscape through combinatorial chemistry and high throughput screening have resulted in an increased number of poorly soluble drugs. Drug delivery strategies quickly adapted to convert these drugs into successful therapies. Amorphous solid dispersion (ASD) technology is widely employed as a drug delivery strategy by pharmaceutical industries to overcome the challenges associated with these poorly soluble drugs. The development of ASD formulation requires an understanding of polymers and manufacturing techniques. A review of US FDA-approved ASD-based products revealed that only a limited number of polymers and manufacturing technologies are employed by pharmaceutical industries. This review provides a comprehensive guide for the selection and overview of polymers and manufacturing technologies adopted by pharmaceutical industries for ASD formulation. The various employed polymers with their underlying mechanisms for solution-state and solid-state stability are discussed. ASD manufacturing techniques, primarily implemented by pharmaceutical industries for commercialization, are presented in Quality by Design (QbD) format. An overview of novel excipients and progress in manufacturing technologies are also discussed. This review provides insights to the researchers on the industrially accepted polymers and manufacturing technology for ASD formulation that has translated these challenging drugs into successful therapies.
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Affiliation(s)
- Sumit Kumar Saha
- Department of Pharmacology, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, India
- Formulation Research and Development - Orals, Sun Pharmaceuticals Industries Limited, Gurugram, India
| | | | - Romi Singh
- Formulation Research and Development - Orals, Sun Pharmaceuticals Industries Limited, Gurugram, India
| | - Kiran Dubey
- Department of Pharmacology, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, India
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Tailored Supersaturable Immediate Release Behaviors of Hypotensive Supersaturating Drug-Delivery Systems Combined with Hot-Melt Extrusion Technique and Self-Micellizing Polymer. Polymers (Basel) 2022; 14:polym14224800. [PMID: 36432925 PMCID: PMC9693352 DOI: 10.3390/polym14224800] [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: 09/22/2022] [Revised: 10/31/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022] Open
Abstract
The short-term immediate release of supersaturated drug-delivery systems (SDDSs) presents an interesting process that can be tailored to multi-stage release events including initial release after dosing and dissolution, evolved release over longer dissolution periods for biological absorption, and terminal release following the end of immediate release. However, although comprehensive analysis of these critical release behaviors is often ignored yet essential for understanding the supersaturable immediate-release events for supersaturable solid formations when employing new techniques or polymers matched to a particular API. Hot-melt extrusion (HME) has become a popular continuous thermodynamic disordering technique for amorphization. The self-micellizing polymer Soluplus® is reported to be a potential amorphous and amphiphilic graft copolymer frequently used in many nano/micro supersaturable formulations. Our current work aims to develop hypotensive supersaturating solid dispersion systems (faSDDSHME) containing the BCS II drug, felodipine, when coordinately employing the HME technique and self-micellizing Soluplus®, and to characterize their amorphization as well as immediate release. Other discontinuous techniques were used to prepare control groups (faSDDSSE and faSDDSQC). Tailored initial/evolved/terminal three-stage supersaturable immediate-release behaviors were identified and possible mechanisms controlling the release were explored. HME produced the highest initial release in related faSDDSHME. During the evolved-release period, highly extended "spring-parachute" process was found in HME-induced amorphization owing to its superior supersaturation duration. Due to the enhanced crystallization inhibition effect, faSDDSHME displayed the strongest terminal release as measured by solubility. For release mechanisms associated with HME, molecular interaction is not the likely dominant mechanism responsible for the improved properties induced by faSDDSHME. For release mechanisms involved with the polymer Soluplus® itself, they were found to inhibit drug recrystallization, spontaneously solubilize the drug and lead to improved molecular interactions in all SDDS systems, which were the factors responsible for the improved release. These mechanisms play an important role for the generation of an extended multi-stage immediate release produced via HME or self-micellizing polymer. This study provides a deeper understanding on amorphization and superior multi-stage supersaturable immediate-release behaviors for a particular hypotensive supersaturated delivery system combined with an HME-based continuous manufacturing technique and self-micellizing polymer strategy.
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Li X, Li D, Liu Z. Superiority of biomimetic micelle-entrapped nanoporous silica xerogel to deliver poorly water-soluble itraconazole. RSC Adv 2022; 12:28422-28432. [PMID: 36320489 PMCID: PMC9540528 DOI: 10.1039/d2ra04698a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Accepted: 09/13/2022] [Indexed: 11/06/2022] Open
Abstract
Micelle-entrapped silica xerogel (M-Silica xerogel) was biomimetically synthesized to combine the advantages of micelles and silica xerogel to load poorly water-soluble drug itraconazole (ITZ). Tween 20, tween 40, and tween 80 were applied to prepare micelles as the templates for M20-Silica xerogel, M40-Silica xerogel, and M80-Silica xerogel, respectively. During the silica frame construction, the surfactant formed a micelle as the porous template, silicon hydroxyl groups interacted with the hydrophilic parts of the micelle, and polyethylenimine catalyzed silica polycondensation owing to its amino groups, resulting in the formation of the M-Silica xerogels. The results showed that the particle size of the sub-particles from the M40-Silica xerogel was larger than from the M20-Silica xerogel, and the M80-Silica xerogel was the largest among these three samples, demonstrating that the emulsifying ability had a direct impact on the particle size of the M-Silica xerogel. The M-Silica xerogel had a large pore size in the range of 10-50 nm. Small mesopores (2-5 nm) dominated the pore size of the M20-Silica xerogel, while medium mesopores (5-10 nm) occupied most the pore distribution of the M40-Silica xerogel, and large mesopores (10-50 nm) shouldered most the pore distribution for the M80-Silica xerogel. Among these three drug-loaded carriers, the M40-Silica xerogel with the largest amount of medium mesopores presented the best ITZ-release behavior, demonstrating that medium mesopores facilitated drug release, while small mesopores impeded drug release and large mesopores were not favorable to retaining amorphous drugs in the pores.
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Affiliation(s)
- Xuejun Li
- Department of Hematology, The First Affiliated Hospital of Jinzhou Medical UniversityJinzhouChina
| | - Dongyan Li
- Department of Human Source, The First Affiliated Hospital of Jinzhou Medical UniversityJinzhouChina
| | - Zhining Liu
- Ultrasound, The First Affiliated Hospital of Jinzhou Medical UniversityJinzhouChina
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Wang Y, Xu S, Xiao Z, Jiang Y, Jiang Q, Li J, He W. Stiripentol Enteric Solid Dispersion-Loaded Effervescent Tablets: Enhanced Dissolution, Stability, and Absorption. AAPS PharmSciTech 2022; 23:141. [PMID: 35538376 DOI: 10.1208/s12249-022-02261-5] [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: 01/08/2022] [Accepted: 03/20/2022] [Indexed: 11/30/2022] Open
Abstract
Due to poor solubility and stability in acid conditions, the gastrointestinal administration of stiripentol (STP) is still a significant challenge. This study aimed to explore the applicability of effervescent tablets compressed from STP-loaded enteric solid dispersions to improve the solubility and stability of the insoluble and acid-labile drug. STP-loaded solid dispersions (STP-SDs) and the effervescent tablets (STP-SD-ETs) were prepared using solvent evaporation and dry granulation technology, respectively, and their formulations were optimized. Then, STP-SDs were characterized regarding solid state, in vitro release, stability, etc. Results showed that enteric amorphous STP-SDs were successfully prepared and significantly improved the solubility and stability of STP. Moreover, compared with STP suspensions, the bioavailability of STP-SD-ETs was as high as 138.71%. Concomitantly, STP-SD-ETs significantly increased the intestinal absorption rate of STP. Overall, the oral preparation encompassing enteric solid dispersion combined with effervescent tablet technology possesses excellent performance in enhancing dissolution, anti-acid hydrolysis stability, and absorption of STP. Our work provides a promising method to improve the delivery of drugs with poor solubility and acid-labile stability.
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Zeng B, Wei A, Zhou Q, Yuan M, Lei K, Liu Y, Song J, Guo L, Ye Q. Andrographolide: A review of its pharmacology, pharmacokinetics, toxicity and clinical trials and pharmaceutical researches. Phytother Res 2021; 36:336-364. [PMID: 34818697 DOI: 10.1002/ptr.7324] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/22/2021] [Accepted: 10/28/2021] [Indexed: 12/15/2022]
Abstract
Andrographis paniculata (Burm. f.) Wall. ex Nees, a renowned herb medicine in China, is broadly utilized in traditional Chinese medicine (TCM) for the treatment of cold and fever, sore throat, sore tongue, snake bite with its excellent functions of clearing heat and toxin, cooling blood and detumescence from times immemorial. Modern pharmacological research corroborates that andrographolide, the major ingredient in this traditional herb, is the fundamental material basis for its efficacy. As the main component of Andrographis paniculata (Burm. f.) Wall. ex Nees, andrographolide reveals numerous therapeutic actions, such as antiinflammatory, antioxidant, anticancer, antimicrobial, antihyperglycemic and so on. However, there are scarcely systematic summaries on the specific mechanism of disease treatment and pharmacokinetics. Moreover, it is also found that it possesses easily ignored security issues in clinical application, such as nephrotoxicity and reproductive toxicity. Thereby it should be kept a lookout over in clinical. Besides, the relationship between the efficacy and security issues of andrographolide should be investigated and evaluated scientifically. In this review, special emphasis is given to andrographolide, a multifunctional natural terpenoids, including its pharmacology, pharmacokinetics, toxicity and pharmaceutical researches. A brief overview of its clinical trials is also presented. This review intends to systematically and comprehensively summarize the current researches of andrographolide, which is of great significance for the development of andrographolide clinical products. Noteworthy, those un-cracked issues such as specific pharmacological mechanisms, security issues, as well as the bottleneck in clinical transformation, which detailed exploration and excavation are still not to be ignored before achieving integration into clinical practice. In addition, given that current extensive clinical data do not have sufficient rigor and documented details, more high-quality investigations in this field are needed to validate the efficacy and/or safety of many herbal products.
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Affiliation(s)
- Bin Zeng
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, China.,Department of Pharmacology, Sichuan College of Traditional Chinese Medicine, Mianyang, China
| | - Ailing Wei
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiang Zhou
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Minghao Yuan
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kelu Lei
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Yushi Liu
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Jiawen Song
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Li Guo
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qiang Ye
- State Key Laboratory of Southwestern Chinese Medicine Resources, School of Pharmacology, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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Nair AR, Lakshman YD, Anand VSK, Sree KSN, Bhat K, Dengale SJ. Overview of Extensively Employed Polymeric Carriers in Solid Dispersion Technology. AAPS PharmSciTech 2020; 21:309. [PMID: 33161493 PMCID: PMC7649155 DOI: 10.1208/s12249-020-01849-z] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 10/07/2020] [Indexed: 12/16/2022] Open
Abstract
Solid dispersion is the preferred technology to prepare efficacious forms of BCS class-II/IV APIs. To prepare solid dispersions, there exist a wide variety of polymeric carriers with interesting physicochemical and thermochemical characteristics available at the disposal of a formulation scientist. Since the advent of the solid dispersion technology in the early 1960s, there have been more than 5000 scientific papers published in the subject area. This review discusses the polymeric carrier properties of most extensively used polymers PVP, Copovidone, PEG, HPMC, HPMCAS, and Soluplus® in the solid dispersion technology. The literature trends about preparation techniques, dissolution, and stability improvement are analyzed from the Scopus® database to enable a formulator to make an informed choice of polymeric carrier. The stability and extent of dissolution improvement are largely dependent upon the type of polymeric carrier employed to formulate solid dispersions. With the increasing acceptance of transfer dissolution setup in the research community, it is required to evaluate the crystallization/precipitation inhibition potential of polymers under dynamic pH shift conditions. Further, there is a need to develop a regulatory framework which provides definition and complete classification along with necessarily recommended studies to characterize and evaluate solid dispersions.
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Liu P, Zhou JY, Chang JH, Liu XG, Xue HF, Wang RX, Li ZS, Li CS, Wang J, Liu CZ. Soluplus-Mediated Diosgenin Amorphous Solid Dispersion with High Solubility and High Stability: Development, Characterization and Oral Bioavailability. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:2959-2975. [PMID: 32801637 PMCID: PMC7396739 DOI: 10.2147/dddt.s253405] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 07/06/2020] [Indexed: 12/14/2022]
Abstract
Background and Purpose The traditional Chinese medicine, diosgenin (Dio), has attracted increasing attention because it possesses various therapeutic effects, including anti-tumor, anti-infective and anti-allergic properties. However, the commercial application of Dio is limited by its extremely low aqueous solubility and inferior bioavailability in vivo. Soluplus, a novel excipient, has great solubilization and capacity of crystallization inhibition. The purpose of this study was to prepare Soluplus-mediated Dio amorphous solid dispersions (ASDs) to improve its solubility, bioavailability and stability. Methods The crystallization inhibition studies were firstly carried out to select excipients using a solvent shift method. According to solubility and dissolution results, the preparation methods and the ratios of drug to excipient were further optimized. The interaction between Dio and Soluplus was characterized by differential scanning calorimetry (DSC), fourier transform infrared (FT-IR) spectroscopy, scanning electron microscopy (SEM), powder X-ray diffraction (PXRD) and molecular docking. The pharmacokinetic study was conducted to explore the potential of Dio ASDs for oral administration. Furthermore, the long-term stability of Dio ASDs was also investigated. Results Soluplus was preliminarily selected from various excipients because of its potential to improve solubility and stability. The optimized ASDs significantly improved the aqueous solubility of Dio due to its amorphization and the molecular interactions between Dio and Soluplus, as evidenced by dissolution test in vitro, DSC, FT-IR spectroscopy, SEM, PXRD and molecular docking technique. Furthermore, pharmacokinetic studies in rats revealed that the bioavailability of Dio from ASDs was improved about 5 times. In addition, Dio ASDs were stable when stored at 40°C and 75% humidity for 6 months. Conclusion These results indicated that Dio ASDs, with its high solubility, high bioavailability and high stability, would open a promising way in pharmaceutical applications.
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Affiliation(s)
- Pei Liu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.,Hebei Province Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Chengde, Hebei 067000, People's Republic of China
| | - Jian-Yu Zhou
- Hebei Province Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Chengde, Hebei 067000, People's Republic of China
| | - Jin-Hua Chang
- Hebei Province Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Chengde, Hebei 067000, People's Republic of China
| | - Xi-Gang Liu
- Hebei Province Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Chengde, Hebei 067000, People's Republic of China
| | - He-Fei Xue
- Hebei Province Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Chengde, Hebei 067000, People's Republic of China
| | - Ru-Xing Wang
- Hebei Province Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Chengde, Hebei 067000, People's Republic of China
| | - Zhong-Si Li
- Hebei Province Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Chengde, Hebei 067000, People's Republic of China
| | - Chun-Shi Li
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Jian Wang
- Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China
| | - Cui-Zhe Liu
- Department of Pharmaceutics, School of Pharmacy, Shenyang Pharmaceutical University, Shenyang 110016, People's Republic of China.,Hebei Province Key Laboratory of Research and Development for Chinese Medicine, Chengde Medical University, Chengde, Hebei 067000, People's Republic of China
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