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Halder S, Afrose S, Shill MC, Sharmin N, Mollick PP, Shuma ML, Muhit MA, Rahman SMA. Self-micellizing solid dispersion of thymoquinone with enhanced biopharmaceutical and nephroprotective effects. Drug Deliv 2024; 31:2337423. [PMID: 38590120 PMCID: PMC11005877 DOI: 10.1080/10717544.2024.2337423] [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: 05/18/2023] [Accepted: 03/13/2024] [Indexed: 04/10/2024] Open
Abstract
The present study was designed to develop a self-micellizing solid dispersion (SMSD) containing Thymoquinone (TQM), a phytonutrient obtained from Nigella sativa seeds, aiming to improve its biopharmaceutical and nephroprotective functions. The apparent solubility of TQM in polymer solutions was used to choose an appropriate amphiphilic polymer that could be used to make an SMSD system. Based on the apparent solubility, Soluplus® was selected as an appropriate carrier, and mixing with TQM, SMSD-TQM with different loadings of TQM (5-15%) was made by solvent evaporation and freeze-drying techniques, respectively, and the formulations were optimized. The optimized SMSD-TQM was evaluated in terms of particle size distribution, morphology, release characteristics, pharmacokinetic behavior, and nephroprotective effects in a rat model of acute kidney injury. SMSD-TQM significantly improved the dissolution characteristics (97.8%) of TQM in water within 60 min. Oral administration of SMSD-TQM in rats exhibited a 4.9-fold higher systemic exposure than crystalline TQM. In a cisplatin-induced (6 mg/kg, i.p.) acute kidney-damaged rat model, oral SMSD-TQM (10 mg/kg) improved the nephroprotective effects of TQM based on the results of kidney biomarkers and histological abnormalities. These findings suggest that SMSD-TQM might be efficacious in enhancing the nephroprotective effect of TQM by overcoming biopharmaceutical limitations.
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Affiliation(s)
- Shimul Halder
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
| | - Sanjida Afrose
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
| | - Manik Chandra Shill
- Department of Pharmaceutical Sciences, North South University, Dhaka, Bangladesh
| | - Nahid Sharmin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
| | | | - Madhabi Lata Shuma
- Department of Pharmacy, School of Pharmacy and Public Health, Independent University Bangladesh, Dhaka, Bangladesh
| | - Md. Abdul Muhit
- Department of Clinical Pharmacy and Pharmacology, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
| | - S. M. Abdur Rahman
- Department of Clinical Pharmacy and Pharmacology, Faculty of Pharmacy, University of Dhaka, Dhaka, Bangladesh
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2
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Uddin A, Halder S, Deb N, Das H, Shuma ML, Hasan I, Shill MC, Haider SS. Impact of Methods of Preparation on Mechanical Properties, Dissolution Behavior, and Tableting Characteristics of Ibuprofen-Loaded Amorphous Solid Dispersions. Adv Pharmacol Pharm Sci 2024; 2024:2303942. [PMID: 38835733 PMCID: PMC11150040 DOI: 10.1155/2024/2303942] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2023] [Revised: 05/10/2024] [Accepted: 05/15/2024] [Indexed: 06/06/2024] Open
Abstract
This study aims to improve the biopharmaceutical, mechanical, and tableting properties of a poorly soluble drug, ibuprofen (IBP), by preparing amorphous solid dispersion (ASD) followed by a sustained-release tablet formulation. A suitable polymer to develop an ASD system was chosen by utilizing the apparent solubility of IBP in various polymer solutions. ASDs containing various ratios of IBP and selected polymer were prepared by the melt fusion (MF) method. ASD containing optimized drug-polymer ratio prepared by freeze-drying (FD) method was characterized and compared physicochemically. The solubility of IBP in water increased 28-fold and 35-fold when formulated as ASD by MF and FD, respectively. Precise formulations showed amorphization of IBP and increased surface area, improving solubility. The dissolution pattern of optimized ASD-IBP in pH 6.8 phosphate buffer after 60 min in MF and FD was enhanced 3-fold. In addition, direct compression tablets comprising optimized ASD granules from MF and FD were made and assessed using compendial and noncompendial methods. ASD-IBP/MF and ASD-IBP/FD formulations showed a similar drug release profile. In addition, 12 h of sustained IBP release from the ASD-IBP-containing tablets was obtained in a phosphate buffer with a pH of 6.8. From the dissolution kinetics analysis, the Weibull model fitted well. The drug release pattern indicated minimal variations between tablets formed using ASD-IBP prepared by both procedures; however, pre- and postcompression assessment parameters differed. From these findings, the application of ASD and sustained-release polymers in matrix formation might be beneficial in improving the solubility and absorption of poorly soluble drugs such as IBP.
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Affiliation(s)
- Ajam Uddin
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Shimul Halder
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Nandita Deb
- Department of Physics, Faculty of Science, University of Dhaka, Dhaka 1000, Bangladesh
| | - Harinarayan Das
- Materials Science Division, Atomic Energy Centre, Dhaka, Bangladesh
| | - Madhabi Lata Shuma
- Department of Pharmacy, School of Pharmacy and Public Health, Independent University, Dhaka 1229, Bangladesh
| | - Ikramul Hasan
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
| | - Manik Chandra Shill
- Department of Pharmaceutical Sciences, North South University, Dhaka 1229, Bangladesh
| | - Syed Shabbir Haider
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
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3
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Taldaev A, Pankov DI, Terekhov RP, Zhevlakova AK, Selivanova IA. Modification of the Physicochemical Properties of Active Pharmaceutical Ingredients via Lyophilization. Pharmaceutics 2023; 15:2607. [PMID: 38004585 PMCID: PMC10674228 DOI: 10.3390/pharmaceutics15112607] [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: 10/10/2023] [Revised: 11/03/2023] [Accepted: 11/07/2023] [Indexed: 11/26/2023] Open
Abstract
Bioavailability is an important biopharmaceutical characteristic of active pharmaceutical ingredients (APIs) that is often correlated with their solubility in water. One of the methods of increasing solubility is freeze drying (lyophilization). The article provides a systematic review of studies published from 2012 to 2022 aimed at optimizing the properties of active pharmaceutical ingredients by freeze drying. This review was carried out in accordance with the recommendations of Preferred Reporting Items for Systematic Reviews and Meta-Analysis (PRISMA). In general, 141 modifications of 36 APIs attributed to 12 pharmacological groups were reported in selected publications. To characterize the products of phase modification after lyophilization, a complex of analytical methods was used, including microscopic, thermal, X-ray, and spectral approaches. Solubility and pharmacokinetic parameters were assessed. There is a tendency to increase solubility due to the amorphization of APIs during lyophilization. Thus, the alcohol lyophilizate of dihydroquercetin is "soluble" in water compared to the initial substance belonging to the category "very poorly soluble". Based on the analysis of the literature, it can be argued that lyophilization is a promising method for optimizing the properties of APIs.
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Affiliation(s)
- Amir Taldaev
- Institute of Biomedical Chemistry, 119121 Moscow, Russia
- Phystech School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Institutskiy per. 9, 141701 Moscow, Russia
| | - Denis I. Pankov
- Nelyubin Institute of Pharmacy, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Roman P. Terekhov
- Nelyubin Institute of Pharmacy, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Anastasia K. Zhevlakova
- Nelyubin Institute of Pharmacy, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
| | - Irina A. Selivanova
- Nelyubin Institute of Pharmacy, Sechenov First Moscow State Medical University, 119991 Moscow, Russia
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Kang J, Kim J, Kim WS. Grinding Method for Phase Transformation of Glycine. ACS OMEGA 2023; 8:17116-17121. [PMID: 37214728 PMCID: PMC10193568 DOI: 10.1021/acsomega.3c01435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/25/2023] [Indexed: 05/24/2023]
Abstract
Glycine had three polymorphs, two metastable phases (α-glycine, β-glycine) and one stable phase (γ-glycine). However, the phase transformation of glycine from α-phase to γ-phase was well known as the kinetically unfavorable process. In this study, a simple and effective grinding method for phase transformation of glycine from α-phase to γ-phase is proposed. In an aqueous solution, α-glycine and γ-glycine had bulk solubilities of 180 and ∼172 g/L, respectively. According to the Ostwald-Freundlich equation, however, as the crystal size of α-glycine was reduced to ∼0.6 μm by grinding, the saturated concentration of α-glycine increased from 180 to 191 g/L. As long as the solution concentration exceeds a critical point (σ = 0.1), it can be possible to suddenly induce the nucleation of γ-glycine by grinding the α-glycine crystal in the solution. Subsequently, the complete transformation of α-phase to γ-phase was achieved without additives. Similarly, the grinding method was effective for producing the γ-glycine crystal in the cooling crystallization whereas the α-glycine crystal was always produced in the cooling crystallization without grinding. This study showed that physical grinding can effectively facilitate phase transformation by triggering the nucleation of stable polymorph.
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Affiliation(s)
- Jeongki Kang
- Functional
Crystallization Center, Department of Chemical Engineering (Integrated
Engineering Program), Kyung Hee University, Yong-in, Gyeonggi-do 17104, South Korea
- Process
Research Department, Research & Development Division, Yuhan Corporation, Yong-in, Gyeonggi-do 17084, South Korea
| | - Jinsoo Kim
- Functional
Crystallization Center, Department of Chemical Engineering (Integrated
Engineering Program), Kyung Hee University, Yong-in, Gyeonggi-do 17104, South Korea
| | - Woo-Sik Kim
- Functional
Crystallization Center, Department of Chemical Engineering (Integrated
Engineering Program), Kyung Hee University, Yong-in, Gyeonggi-do 17104, South Korea
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Tranilast-matrine co-amorphous system: Strong intermolecular interactions, improved solubility, and physiochemical stability. Int J Pharm 2023; 635:122707. [PMID: 36764418 DOI: 10.1016/j.ijpharm.2023.122707] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/13/2023] [Accepted: 02/04/2023] [Indexed: 02/11/2023]
Abstract
There is a great interest to develop co-amorphous drug delivery systems to enhance the solubility of biopharmaceutics classification system (BCS) class II and IV drugs. However, most reported systems only resulted in severalfold solubility improvement. Tranilast (TRA) is an anti-allergic drug used to treat bronchial asthma and allergic rhinitis. It is a BCS class II drug and its poor aqueous solubility affects its absorption in vivo. To address this issue, a natural alkaloid matrine (MAR) with interesting biological activities was chosen to form a co-amorphous system with TRA, based on the solubility parameter and phase solubility experiment. The TRA-MAR drug-drug co-amorphous system was prepared by the solvent evaporation method, and further characterized by powder X-ray diffraction and modulated temperature differential scanning calorimetry. Fourier transform infrared spectroscopy, FT-Raman, and X-ray photoelectron spectroscopy revealed the formation of salt and the presence of strong intermolecular interactions in the TRA-MAR co-amorphous system, which are also supported by molecular dynamics simulations, showing ionic and hydrogen bonding interactions. This co-amorphous system exhibited excellent physical stability at both 25 °C and 40 °C under anhydrous silica gel condition. Finally, co-amorphous TRA-MAR showed greatly enhanced solubility (greater than 100-fold) and rapid release behavior in the vitro release experiments. NMR spectroscopy revealed the strong intermolecular interactions between TRA and MAR in both DMSO‑d6 and D2O. Our study resulted in a TRA-MAR co-amorphous drug system with significant solubility improvement and showcased the great potential to improve the dissolution behaviors of BCS class II and IV drugs through the co-amorphization approach.
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pH-Dependent supersaturation from amorphous solid dispersions of weakly basic drugs. Pharm Res 2021; 39:2919-2936. [PMID: 34890018 DOI: 10.1007/s11095-021-03147-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Accepted: 11/19/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE In amorphous solid dispersions (ASDs), the chemical potential of a drug can be reduced due to mixing with the polymer in the solid matrix, and this can lead to reduced drug release when the polymer is insoluble in the dissolution media. If both the drug and the polymer composing an ASD are ionizable, drug release from the ASD becomes pH-dependent. The goal of this study was to gain insights into the pH-dependent solubility suppression from ASD formulations. METHODS The maximum release of clotrimazole, a weakly basic drug, from ASDs formulated with insoluble and pH-responsive polymers, was determined as a function of solution pH. Drug-polymer interactions in ASDs were probed using melting point depression, moisture sorption, and solid-state Nuclear Magnetic Resonance spectroscopy (SSNMR) measurements. RESULTS The extent of solubility suppression was dependent on polymer type and drug loading. The strength of drug-polymer interactions was found to correlate well with the degree of solubility suppression. For the same ASD, the degree of solubility suppression was nearly constant across the solution pH range studied, suggesting that polymer-drug interactions in residual ASD solids was independent of solution pH. The total drug release agrees with the Henderson-Hasselbalch relationship if the suppressed amorphous solubility of the free drug is independent of solution pH. CONCLUSIONS The mechanism of solubility suppression at different solution pHs appeared to be drug-polymer interactions in the solid-state, where the concentration of the free drug remains the same at variable pHs and the total drug concentration follows the Henderson-Hasselbalch relationship.
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Nihei T, Ushiro E, Sato H, Onoue S. Biopharmaceutical Study on Nobiletin-Loaded Amorphous Solid Dispersion with Improved Hypouricemic Effect. Molecules 2021; 26:molecules26154447. [PMID: 34361599 PMCID: PMC8347906 DOI: 10.3390/molecules26154447] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 07/16/2021] [Accepted: 07/19/2021] [Indexed: 11/17/2022] Open
Abstract
The present study aimed to develop an amorphous solid dispersion of nobiletin (ASD/NOB) using hydroxypropyl cellulose-SSL (HPC-SSL) to improve the pharmacokinetic properties and hypouricemic effect of NOB. ASD/NOB was prepared by the freeze-drying method (ASD/NOB). ASD/NOB was characterized with a focus on crystallinity, dissolution, pharmacokinetic behavior, and hypouricemic action in a rat model of hyperuricemia. ASD/NOB showed significant improvement in dissolution behavior, as evidenced by a 4.4-fold higher dissolved NOB concentration than crystalline NOB at 2 h in distilled water. After the oral administration of ASD/NOB (50 mg NOB/kg) in rats, higher systemic exposure to NOB was observed with an 18-fold enhancement in oral bioavailability, and the Tmax value of orally administered ASD/NOB was 60% shorter than that of orally administered crystalline NOB. In a rat model of hyperuricemia, orally dosed ASD/NOB showed an improved hypouricemic effect by a 16% reduction in the plasma uric acid level compared with orally administered crystalline NOB. Based on these findings, ASD/NOB may be an efficacious dosage option to improve the nutraceutical potential of NOB for the treatment of hyperuricemia.
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Affiliation(s)
| | | | | | - Satomi Onoue
- Correspondence: ; Tel.: +81-54-264-5630; Fax: +81-54-264-5636
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8
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Schlauersbach J, Hanio S, Lenz B, Vemulapalli SPB, Griesinger C, Pöppler AC, Harlacher C, Galli B, Meinel L. Leveraging bile solubilization of poorly water-soluble drugs by rational polymer selection. J Control Release 2020; 330:36-48. [PMID: 33333120 DOI: 10.1016/j.jconrel.2020.12.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 11/03/2020] [Accepted: 12/11/2020] [Indexed: 12/12/2022]
Abstract
Poorly water-soluble drugs frequently solubilize into bile colloids and this natural mechanism is key for efficient bioavailability. We tested the impact of pharmaceutical polymers on this solubilization interplay using proton nuclear magnetic resonance spectroscopy, dynamic light scattering, and by assessing the flux across model membranes. Eudragit E, Soluplus, and a therapeutically used model polymer, Colesevelam, impacted the bile-colloidal geometry and molecular interaction. These polymer-induced changes reduced the flux of poorly water-soluble and bile interacting drugs (Perphenazine, Imatinib) but did not impact the flux of bile non-interacting Metoprolol. Non-bile interacting polymers (Kollidon VA 64, HPMC-AS) neither impacted the flux of colloid-interacting nor colloid-non-interacting drugs. These insights into the drug substance/polymer/bile colloid interplay potentially point towards a practical optimization parameter steering formulations to efficient bile-solubilization by rational polymer selection.
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Affiliation(s)
- Jonas Schlauersbach
- Institute for Pharmacy and Food Chemistry, University of Wuerzburg, Am Hubland, DE-97074 Wuerzburg, Germany
| | - Simon Hanio
- Institute for Pharmacy and Food Chemistry, University of Wuerzburg, Am Hubland, DE-97074 Wuerzburg, Germany
| | - Bettina Lenz
- Institute for Pharmacy and Food Chemistry, University of Wuerzburg, Am Hubland, DE-97074 Wuerzburg, Germany
| | | | - Christian Griesinger
- Max Planck Institute for Biophysical Chemistry, Am Faßberg 11, DE-37077 Goetingen, Germany
| | - Ann-Christin Pöppler
- Institute of Organic Chemistry, University of Wuerzburg, Am Hubland, DE-97074 Wuerzburg, Germany
| | | | - Bruno Galli
- Novartis Pharma AG, Lichtstrasse 35, CH-4056 Basel, Switzerland
| | - Lorenz Meinel
- Institute for Pharmacy and Food Chemistry, University of Wuerzburg, Am Hubland, DE-97074 Wuerzburg, Germany; Helmholtz Institute for RNA-based Infection Biology (HIRI), DE-97070 Wuerzburg, Germany.
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9
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Zhang N, Ba J, Wang S, Xu Z, Wu F, Li Z, Deng H, Yang H. Pharmacokinetics and bioavailability of solid dispersion formulation of tilmicosin in pigs. J Vet Pharmacol Ther 2020; 44:359-366. [PMID: 33270918 DOI: 10.1111/jvp.12929] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Revised: 10/23/2020] [Accepted: 10/25/2020] [Indexed: 11/29/2022]
Abstract
Tilmicosin (TMS) is a semisynthetic macrolide antibiotic restricted to veterinary use but is only partially soluble in aqueous solutions, which limits its administration in treatments. We developed a strategy to enhance the supersaturated solubility of TMS using amorphous solid dispersion (SD). The dissolution profile shown that the dissolution rate of TMS-SD was obviously faster than TMS. The pharmacokinetics of tilmicosin (TMS) and tilmicosin solid dispersion (TMS-SD) in pigs after oral administration at a single dose of 50 mg/kg b.w were investigated. The tmax of TMS-SD (2.50 hr) was 1.80 times faster than TMS (4.50 hr) (p < .05). There were no significant differences in the other PK parameters (Cmax , t1/2β , V/F, CL/F, MRT, and AUC0-inf ) (p > .05). The mean relative bioavailability of TMS-SD compared with TMS was 140.39%, according to the AUC0-inf values. These results demonstrated that the solid dispersion technique enhanced the bioavailability of TMS and the new formulation administered to animals via drinking water may be used as a therapeutic alternative for clinical treatments.
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Affiliation(s)
- Nan Zhang
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Juan Ba
- Zhuhai Kerric Testing, Zhuhai, China
| | - Shaojie Wang
- Ring Pai NanHua Veterinary hospital management, Shenzhen, China
| | - Zhigao Xu
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Fuda Wu
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Zhili Li
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Hua Deng
- School of Life Science and Engineering, Foshan University, Foshan, China
| | - Hong Yang
- School of Life Science and Engineering, Foshan University, Foshan, China
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Kamiya Y, Otsuka S, Miura T, Yoshizawa M, Nakano A, Iwasaki M, Kobayashi Y, Shimizu M, Kitajima M, Shono F, Funatsu K, Yamazaki H. Physiologically Based Pharmacokinetic Models Predicting Renal and Hepatic Concentrations of Industrial Chemicals after Virtual Oral Doses in Rats. Chem Res Toxicol 2020; 33:1736-1751. [PMID: 32500706 DOI: 10.1021/acs.chemrestox.0c00009] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Recently developed high-throughput in vitro assays in combination with computational models could provide alternatives to animal testing. The purpose of the present study was to model the plasma, hepatic, and renal pharmacokinetics of approximately 150 structurally varied types of drugs, food components, and industrial chemicals after virtual external oral dosing in rats and to determine the relationship between the simulated internal concentrations in tissue/plasma and their lowest-observed-effect levels. The model parameters were based on rat plasma data from the literature and empirically determined pharmacokinetics measured after oral administrations to rats carried out to evaluate hepatotoxic or nephrotic potentials. To ensure that the analyzed substances exhibited a broad diversity of chemical structures, their structure-based location in the chemical space underwent projection onto a two-dimensional plane, as reported previously, using generative topographic mapping. A high-throughput in silico one-compartment model and a physiologically based pharmacokinetic (PBPK) model consisting of chemical receptor (gut), metabolizing (liver), central (main), and excreting (kidney) compartments were developed in parallel. For 159 disparate chemicals, the maximum plasma concentrations and the areas under the concentration-time curves obtained by one-compartment models and modified simple PBPK models were closely correlated. However, there were differences between the PBPK modeled and empirically obtained hepatic/renal concentrations and plasma maximal concentrations/areas under the concentration-time curves of the 159 chemicals. For a few compounds, the lowest-observed-effect levels were available for hepatotoxicity and nephrotoxicity in the Hazard Evaluation Support System Integrated Platform in Japan. The areas under the renal or hepatic concentration-time curves estimated using PBPK modeling were inversely associated with these lowest-observed-effect levels. Using PBPK forward dosimetry could provide the plasma/tissue concentrations of drugs and chemicals after oral dosing, thereby facilitating estimates of nephrotoxic or hepatotoxic potential as a part of the risk assessment.
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Affiliation(s)
- Yusuke Kamiya
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, 3-3165 Higashi-tamagawa Gakuen, Machida, Tokyo 194-8543, Japan
| | - Shohei Otsuka
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, 3-3165 Higashi-tamagawa Gakuen, Machida, Tokyo 194-8543, Japan
| | - Tomonori Miura
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, 3-3165 Higashi-tamagawa Gakuen, Machida, Tokyo 194-8543, Japan
| | - Manae Yoshizawa
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, 3-3165 Higashi-tamagawa Gakuen, Machida, Tokyo 194-8543, Japan
| | - Ayane Nakano
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, 3-3165 Higashi-tamagawa Gakuen, Machida, Tokyo 194-8543, Japan
| | - Miyu Iwasaki
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, 3-3165 Higashi-tamagawa Gakuen, Machida, Tokyo 194-8543, Japan
| | - Yui Kobayashi
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, 3-3165 Higashi-tamagawa Gakuen, Machida, Tokyo 194-8543, Japan
| | - Makiko Shimizu
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, 3-3165 Higashi-tamagawa Gakuen, Machida, Tokyo 194-8543, Japan
| | - Masato Kitajima
- Fujitsu Kyusyu Systems, Higashi-hie, Hakata-ku, Fukuoka 812-0007, Japan
| | - Fumiaki Shono
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Kimito Funatsu
- Department of Chemical System Engineering, School of Engineering, The University of Tokyo, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
| | - Hiroshi Yamazaki
- Laboratory of Drug Metabolism and Pharmacokinetics, Showa Pharmaceutical University, 3-3165 Higashi-tamagawa Gakuen, Machida, Tokyo 194-8543, Japan
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Leão AD, Alvarez-Lorenzo C, Soares-Sobrinho JL. One-pot synthesis of the organomodified layered double hydroxides - glibenclamide biocompatible nanoparticles. Colloids Surf B Biointerfaces 2020; 193:111055. [PMID: 32403034 DOI: 10.1016/j.colsurfb.2020.111055] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Revised: 03/27/2020] [Accepted: 04/12/2020] [Indexed: 02/07/2023]
Abstract
In this work, synthesis of sodium dodecyl sulfate (SDS) organomodified LDH Zn2Al carrying glibenclamide (GLIB) was performed in one step and in one-pot to obtain nanoparticles (NP). XRD data showed GLIB adsolubilization (d = 14.03 Å) and NP coating with Eudragit L100®. In addition, thermal and XRD data showed exfoliated/intercalated nanocomposite for NP S5 (LDH associated with SDS and Eudragit L100®). LDH organophilization and GLIB intercalation reduced surface area (SBET 23.58 m2/g) and NP size (469 nm). In addition, the change in zeta potential (-35.5 ζ) relative to pristine LDH (SBET 41.34 m2/g, 688.8 nm and +14 ζ) indicated that LDH functionalization seems an appropriate approach to produce NP with greater colloidal stability and enhanced functionality. The zinc release data from the LDH matrix (2.96 % ±0.002 ppm) showed the effectiveness of the coating in acid medium (pH 1.2) and the release data from GLIB showed the kinetics of release of zero order with release in simulated intestinal medium (pH 7.4) of 88 % and 73 % (24 h) for uncoated and coated NP, respectively. All NP were considered biocompatible in the WST-1 assay on BALB 3T3 fibroblast strains making these NP promising therapeutically.
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Affiliation(s)
- Amanda Damasceno Leão
- Federal University of Pernambuco-UFPE, Department of Pharmaceutical Sciences, University city, Recife, Brazil.
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, I+D Farma (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, Santiago de Compostela, Spain
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12
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An overview of techniques for multifold enhancement in solubility of poorly soluble drugs. CURRENT ISSUES IN PHARMACY AND MEDICAL SCIENCES 2019. [DOI: 10.2478/cipms-2019-0035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Poor water solubility of newly discovered compounds has become the most common challenge in the drug development process. Indeed, poor solubility is considered as the root cause of failure of drug during drug development phases. Moreover, it has also been reported to be the main reason for bioavailability issues such as poor, inconsistent, incomplete and highly variable bioavailability of the marketed products. As per an estimate, approximately 90% of drug molecules suffer with poor water solubility at early stage and approximately 40% of the marketed drugs have bioavailability problems mainly due to poor water solubility. Solubility enhancement of the newly discovered compounds is primary research area for the pharmaceutical industries and research institutions. The conventional techniques to improve aqueous solubility of drugs employ salt formation, prodrug formation, co-crystallization, complexation, amorphous solid dispersion and use of co-solvent, surfactants or hydrotropic agents. Current advancement in the science and technology has enabled the use of relatively new techniques under the umbrella of nanotechnology. These include the development of nanocrystals, nanosuspensions, nanoemulsions, microemulsions, liposomes and nanoparticles to enhance the solubility. This review focuses on the conventional and current approaches of multifold enhancement in the solubility of poorly soluble marketed drugs, including newly discovered compounds.
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Hosny KM. Development Of Saquinavir Mesylate Nanoemulsion-Loaded Transdermal Films: Two-Step Optimization Of Permeation Parameters, Characterization, And Ex Vivo And In Vivo Evaluation. Int J Nanomedicine 2019; 14:8589-8601. [PMID: 31802871 PMCID: PMC6830379 DOI: 10.2147/ijn.s230747] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 10/12/2019] [Indexed: 12/12/2022] Open
Abstract
Background Saquinavir mesylate (SQR) tablets are widely used against human immunodeficiency virus. SQR has bioavailability issues owing to its poor aqueous solubility, extensive first-pass metabolism, and even low gastrointestinal tract permeability and absorption. Objective An in-depth optimization process was carried out using factorial design to improve the permeation parameters and thereby the bioavailability of SQR by formulating self-nanoemulsifying drug delivery system (SNEDDS)-loaded polymeric transdermal films. Methods The solubility of SQR in different nanoemulsion components was examined. Various combinations of selected components were prepared in an extreme vertices mixture design to identify the useful nanoemulsion zone and to develop SNEDDS with minimum globule size. The optimized SQR-SNEDDS was loaded in polyvinyl alcohol (PVA)-based transdermal films. The Box-Behnken design was used to optimize and evaluate SQR permeability. The prepared films were characterized for thickness, tensile strength, elongation, folding endurance, and accelerated stability studies. The optimized film was examined for ex vivo skin permeation and in vivo pharmacokinetic parameters. Results The optimized SQR-SNEDDS was prepared in proportions of 0.1, 0.55, and 0.35 of clove oil, labrasol, and Transcutol, respectively. The implemented Box-Behnken design indicated the optimized film consisted of 1.0% PVA, 0.25% propylene glycol, and clove oil as the oil phase. The tensile strength, thickness, percent elongation, and folding endurance of the optimized SQR-SNEDDS film were 0.93 ± 0.013 kg/cm2, 0.22 ± 0.006 mm, 43.1 ± 0.022%, and >200 times, respectively. A higher Cmax and double the AUC were observed for SQR-SNEDDS–loaded film in comparison to pure SQR-loaded films. Conclusion Implementation of a two-step design to optimize and control experimental factors in the preparation of SQR-SNEDDS and its loading onto PVA-based transdermal films was achieved. The films indicated improved ex vivo skin permeation, enhanced bioavailability, and overcame the limitations of the oral dosage form.
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Affiliation(s)
- Khaled M Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah, Saudi Arabia
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Butt S, Hasan SMF, Hassan MM, Alkharfy KM, Neau SH. Directly compressed rosuvastatin calcium tablets that offer hydrotropic and micellar solubilization for improved dissolution rate and extent of drug release. Saudi Pharm J 2019; 27:619-628. [PMID: 31297015 PMCID: PMC6598454 DOI: 10.1016/j.jsps.2019.03.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Accepted: 03/03/2019] [Indexed: 12/13/2022] Open
Abstract
The objective was to use caffeine and Soluplus® to improve the dissolution rate and to maintain a concentration of BCS Class II rosuvastatin calcium that exceeds its solubility. Caffeine and Soluplus® together substantially improved the dissolution rate and the extent of rosuvastatin release. Formulations for direct compression tablets included Formulation F1, a control with drug but with neither caffeine nor Soluplus® present; F2 with drug-caffeine complex; F3 with drug and Soluplus® and F4 with drug-caffeine complex and Soluplus®. Each formulation blend provided satisfactory flow properties. Tablets were comparable in mass, hardness and friability. A marked decrease in disintegration time occurred when the hydrotropic or micellar agent was included in the formulation. Assay (98–100%) and content uniformity (99–100%) results met requirements. Release studies in pH 1.2, 6.6, and 6.8 buffers revealed the superiority of F4. At 45 min sampling time, F3 and F4 tablets each provided a cumulative drug release greater than 70% in each medium. F2 tablets exhibited compliance to official standards in pH 6.6 and 6.8 buffers but not in pH 1.2 buffer, whereas tablets based on F1 failed in each medium. Two-factor ANOVA of the release data revealed a statistical difference across the four formulations in each release medium. Pairwise comparison of release profiles demonstrated that, of the four formulations, F4 provided the most effectively enhanced dissolution rate, improvement to the extent of drug release and support of a concentration higher than the solubility of rosuvastatin calcium.
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Affiliation(s)
- Sharonia Butt
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Pakistan
| | - Syed Muhammad Farid Hasan
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Pakistan
| | | | - Khalid M Alkharfy
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
| | - Steven Henry Neau
- Philadelphia College of Pharmacy, University of the Sciences, Philadelphia, PA, USA
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15
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Kinetic stability of amorphous solid dispersions with high content of the drug: A fast scanning calorimetry investigation. Int J Pharm 2019; 562:113-123. [DOI: 10.1016/j.ijpharm.2019.03.039] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 03/16/2019] [Accepted: 03/18/2019] [Indexed: 11/23/2022]
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16
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Halder S, Tabata A, Seto Y, Sato H, Onoue S. Amorphous solid dispersions of carvedilol along with pH-modifiers improved pharmacokinetic properties under hypochlorhydoria. Biopharm Drug Dispos 2018; 39:232-242. [PMID: 29607517 DOI: 10.1002/bdd.2129] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Revised: 02/23/2018] [Accepted: 03/23/2018] [Indexed: 11/08/2022]
Abstract
Carvedilol (CAR) belongs to biopharmaceutics classification system class-II drugs, with poor aqueous solubility and pH-dependent solubility. The present study aimed to develop a novel amorphous solid dispersion (ASD) of CAR with acidic counter ions for pH modifications in microenvironment to improve the pharmacokinetic properties under hypochlorhydric conditions. CAR-ASD was prepared by freeze-drying in combination with counter ions and hydroxypropyl cellulose, and their physicochemical properties including dissolution behavior, storage stability, and photostability were characterized. Pharmacokinetic studies were carried out after oral administration of CAR samples in both normal and omeprazole-treated (30 mg/kg, p.o.) rats as a hypochlorhydria model. Among the tested six counter ions, citric acid (CA) was found to be a preferable pH-modifier of CAR with respect to the dissolution profile and photostability (both potency and colorimetric evaluation). In CAR-ASD formulation with 50% loading of CA (CAR-ASD/CA50), amorphization of CAR was observed during the preparation process. After the oral administration of crystalline CAR in rats under hypochlorhydric condition, there was a 34.4% reduction in the systemic exposure of CAR compared with that in normal rats. However, orally-dosed CAR-ASD/CA50 resulted in limited alterations of pharmacokinetic behavior between normal and omeprazole-treated rats. From these findings, addition of CA as pH-modifier in CAR-ASD might provide consistent pharmacokinetic behavior of CAR even under hypochlorhydric conditions.
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Affiliation(s)
- Shimul Halder
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Aiko Tabata
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Yoshiki Seto
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Hideyuki Sato
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
| | - Satomi Onoue
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka, 422-8526, Japan
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The Role of Desmoplasia and Stromal Fibroblasts on Anti-cancer Drug Resistance in a Microengineered Tumor Model. Cell Mol Bioeng 2018; 11:419-433. [PMID: 31719892 DOI: 10.1007/s12195-018-0544-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Accepted: 07/19/2018] [Indexed: 01/21/2023] Open
Abstract
Introduction Cancer associated fibroblasts (CAFs) are known to participate in anti-cancer drug resistance by upregulating desmoplasia and pro-survival mechanisms within the tumor microenvironment. In this regard, anti-fibrotic drugs (i.e., tranilast) have been repurposed to diminish the elastic modulus of the stromal matrix and reduce tumor growth in presence of chemotherapeutics (i.e., doxorubicin). However, the quantitative assessment on impact of these stromal targeting drugs on matrix stiffness and tumor progression is still missing in the sole presence of CAFs. Methods We developed a high-density 3D microengineered tumor model comprised of MDA-MB-231 (highly invasive breast cancer cells) embedded microwells, surrounded by CAFs encapsulated within collagen I hydrogel. To study the influence of tranilast and doxorubicin on fibrosis, we probed the matrix using atomic force microscopy (AFM) and assessed matrix protein deposition. We further studied the combinatorial influence of the drugs on cancer cell proliferation and invasion. Results Our results demonstrated that the combinatorial action of tranilast and doxorubicin significantly diminished the stiffness of the stromal matrix compared to the control. The two drugs in synergy disrupted fibronectin assembly and reduced collagen fiber density. Furthermore, the combination of these drugs, condensed tumor growth and invasion. Conclusion In this work, we utilized a 3D microengineered model to tease apart the role of tranilast and doxorubicin in the sole presence of CAFs on desmoplasia, tumor growth and invasion. Our study lay down a ground work on better understanding of the role of biomechanical properties of the matrix on anti-cancer drug efficacy in the presence of single class of stromal cells.
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Sadia M, Isreb A, Abbadi I, Isreb M, Aziz D, Selo A, Timmins P, Alhnan MA. From 'fixed dose combinations' to 'a dynamic dose combiner': 3D printed bi-layer antihypertensive tablets. Eur J Pharm Sci 2018; 123:484-494. [PMID: 30041029 DOI: 10.1016/j.ejps.2018.07.045] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 07/14/2018] [Accepted: 07/20/2018] [Indexed: 11/15/2022]
Abstract
There is an increased evidence for treating hypertension by a combination of two or more drugs. Increasing the number of daily intake of tablets has been reported to negatively affect the compliance of patients. Therefore, numerous fixed dose combinations (FDCs) have been introduced to the market. However, the inherent rigid nature of FDCs does not allow the titration of the dose of each single component for an individual patient's needs. In this work, flexible dose combinations of two anti-hypertensive drugs in a single bilayer tablet with a range of doses were fabricated using dual fused deposition modelling (FDM) 3D printer. Enalapril maleate (EM) and hydrochlorothiazide (HCT) loaded filaments were produced via hot-melt extrusion (HME). Computer software was utilised to design sets of oval bi-layer tablets of individualised doses. Thermal analysis and x-ray diffractometer (XRD) indicated that HCT remained crystalline in the polymeric matrix whilst EM appeared to be in an amorphous form. The interaction between anionic EM and cationic methacrylate polymer may have contributed to a drop in the glass transition temperature (Tg) of the filament and obviated the need for a plasticiser. Across all tablet sets, the methacrylate polymeric matrix provided immediate drug release profiles. This dynamic dosing system maintained the advantages of FDCs while providing a superior flexibility of dosing range, hence offering an optimal clinical solution to hypertension therapy in a patient-centric healthcare service.
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Affiliation(s)
- Muzna Sadia
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, Lancashire, UK
| | - Abdullah Isreb
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, Lancashire, UK
| | - Ibrahim Abbadi
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, Lancashire, UK
| | - Mohammad Isreb
- School of Pharmacy, University of Bradford, Richmond Road, Bradford, UK
| | - David Aziz
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, Lancashire, UK
| | - Amjad Selo
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Peter Timmins
- Department of Pharmacy, University of Huddersfield, Huddersfield, UK
| | - Mohamed A Alhnan
- School of Pharmacy and Biomedical Sciences, University of Central Lancashire, Preston, Lancashire, UK.
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Kojo Y, Suzuki H, Kato K, Kaneko Y, Yuminoki K, Hashimoto N, Sato H, Seto Y, Onoue S. Enhanced biopharmaceutical effects of tranilast on experimental colitis model with use of self-micellizing solid dispersion technology. Int J Pharm 2018; 545:19-26. [PMID: 29702241 DOI: 10.1016/j.ijpharm.2018.04.053] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2017] [Revised: 04/19/2018] [Accepted: 04/23/2018] [Indexed: 01/21/2023]
Abstract
The present study aimed to clarify the applicability of a self-micellizing solid dispersion of tranilast (SMSD/TL) to the treatment of inflammatory bowel diseases (IBD) using an experimental colitis model. SMSD/TL with several loading amounts ranging from 10 to 50% was prepared using a wet-milling system. The physicochemical properties of SMSD/TL were evaluated in terms of the dissolution behavior, morphology, and particle size distribution. Animal studies were conducted to evaluate oral bioavailability in rats and anti-inflammatory effects in a rat model of chemically induced colitis. SMSD/TL with drug loading of 15% (SMSD/TL15) showed enhanced dissolution behavior at pH 1.2, compared with other tested other formulations. After the dispersion of SMSD/TL15 in deionized water, fine micelles formed with an average diameter of 137 nm. SMSD/TL15 (10 mg-TL/kg) exhibited about 147- and 34-fold greater value for Cmax and the area under the curve of plasma concentration vs. time than crystalline TL, respectively. Although the anti-inflammatory effect on the colitis model was very limited in the crystalline TL (2 mg/kg) group, inflammatory events, such as myeloperoxidase activity and thickening of the submucosa in colon tissues, were significantly suppressed in the SMSD/TL15 (2 mg-TL/kg) group. Based on these findings, SMSD/TL might be a more efficacious dosage option for improved IBD treatment.
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Affiliation(s)
- Yoshiki Kojo
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hiroki Suzuki
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kouki Kato
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yuuki Kaneko
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kayo Yuminoki
- Department of Pharmaceutical Physicochemistry, Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Naofumi Hashimoto
- Department of Pharmaceutical Physicochemistry, Faculty of Pharmaceutical Sciences, Setsunan University, 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | - Hideyuki Sato
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Yoshiki Seto
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Satomi Onoue
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
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Microspherical Particles of Solid Dispersion of Polyvinylpyrrolidone K29-32 for Inhalation Administration. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2412156. [PMID: 29546051 PMCID: PMC5818905 DOI: 10.1155/2018/2412156] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 11/11/2017] [Accepted: 11/23/2017] [Indexed: 11/18/2022]
Abstract
Inhalation administration is a promising alternative to the invasive drug delivery methods. The particle size required for ideal drug aerosol preparation is between 1 and 3 μm. The application of microspherical particles of solid dispersions enhances bioavailability of poorly soluble drugs due to the solubilization. In the present work, the spray drying process of the production of microspherical particles of solid dispersions of polyvinylpyrrolidone K29-32 with model hydrophobic drug, phenacetin, was optimized using the results of DSC, PXRD, and viscometry. The diameter of the obtained particles is within 1–3 μm range. The Gibbs energy of dissolution in water was shown to be negative for the mixture with polymer/phenacetin mass ratio 5 : 1. We have demonstrated that the optimal size distribution for the inhalation administration is obtained for microspherical particles produced using spray caps with 7.0 μm hole size. The dissolution rates of phenacetin from the produced microspherical particles were faster than that of drug powder. As evidenced by powder X-ray diffraction data, phenacetin stayed in amorphous state for 4 months in microspherical particles of solid dispersions. According to the obtained results, strategic application of the spray drying process could be beneficial for the improvement of the pharmaceutical properties of model drug, phenacetin.
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21
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Protective effects of tranilast on experimental colitis in rats. Biomed Pharmacother 2017; 90:842-849. [DOI: 10.1016/j.biopha.2017.04.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 04/05/2017] [Accepted: 04/10/2017] [Indexed: 01/27/2023] Open
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Edueng K, Mahlin D, Bergström CAS. The Need for Restructuring the Disordered Science of Amorphous Drug Formulations. Pharm Res 2017; 34:1754-1772. [PMID: 28523384 PMCID: PMC5533858 DOI: 10.1007/s11095-017-2174-7] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2017] [Accepted: 05/01/2017] [Indexed: 11/25/2022]
Abstract
The alarming numbers of poorly soluble discovery compounds have centered the efforts towards finding strategies to improve the solubility. One of the attractive approaches to enhance solubility is via amorphization despite the stability issue associated with it. Although the number of amorphous-based research reports has increased tremendously after year 2000, little is known on the current research practice in designing amorphous formulation and how it has changed after the concept of solid dispersion was first introduced decades ago. In this review we try to answer the following questions: What model compounds and excipients have been used in amorphous-based research? How were these two components selected and prepared? What methods have been used to assess the performance of amorphous formulation? What methodology have evolved and/or been standardized since amorphous-based formulation was first introduced and to what extent have we embraced on new methods? Is the extent of research mirrored in the number of marketed amorphous drug products? We have summarized the history and evolution of amorphous formulation and discuss the current status of amorphous formulation-related research practice. We also explore the potential uses of old experimental methods and how they can be used in tandem with computational tools in designing amorphous formulation more efficiently than the traditional trial-and-error approach.
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Affiliation(s)
- Khadijah Edueng
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Centre, P.O. Box 580, SE-75123, Uppsala, Sweden
- Kulliyyah of Pharmacy,, International Islamic University Malaysia, Jalan Istana, 25200, Bandar Indera Mahkota, Pahang, Malaysia
| | - Denny Mahlin
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Centre, P.O. Box 580, SE-75123, Uppsala, Sweden
| | - Christel A S Bergström
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Centre, P.O. Box 580, SE-75123, Uppsala, Sweden.
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Kojo Y, Matsunaga S, Suzuki H, Taniguchi C, Kawabata Y, Wada K, Yamauchi Y, Seto Y, Sato H, Onoue S. Improved Dissolution of Dipyridamole with the Combination of pH-Modifier and Solid Dispersion Technology. Chem Pharm Bull (Tokyo) 2017; 65:426-431. [PMID: 28458364 DOI: 10.1248/cpb.c16-00714] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The aim of this study was to develop a pH-independent release formulation of dipyridamole (DP) by the combined use of pH-modifier technology and solid dispersion (SD) technology employing enteric polymer, Eudragit® S100 (Eud). Tartaric acid (TA) was selected as an appropriate pH-modifier in terms of improving the dissolution behavior of DP under neutral conditions. Upon optimization of the ratio of TA to DP, SD of DP with Eud and TA (SD-Eud/DP/TA) was prepared by a freeze-drying method. Scanning electron microscopic images revealed that DP was dispersed in the polymer in SD-Eud/DP/TA, and DP in SD-Eud/DP/TA was in an amorphous state, supported by powder X-ray diffraction and differential scanning calorimetry analyses. The dissolution behavior of SD-Eud/DP/TA was not dependent on the pH of the medium, although SD-Eud/DP exhibited very limited dissolution behavior under neutral conditions. Spectroscopic analysis suggested that there might be inter-molecular interaction among DP, TA and enteric polymer in SD-Eud/DP/TA, possibly leading to the stable pH-independent dissolution behavior of SD-Eud/DP/TA. TA in SD-Eud/DP/TA promoted the degradation of DP, suggesting that improving the stability of DP in SD-Eud/DP/TA might be key for its practical use. From these results, pH-independent dissolution behavior of SD-Eud/DP/TA could be achieved by an enteric polymer-based solid dispersion with a pH-modifier.
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Affiliation(s)
- Yoshiki Kojo
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka
| | - Saori Matsunaga
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka
| | - Hiroki Suzuki
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka
| | - Chika Taniguchi
- Department of Chemistry, Manufacturing and Control, Kobe Pharma Research Institute, Nippon Boehringer Ingelheim Co., Ltd
| | - Yohei Kawabata
- Department of Chemistry, Manufacturing and Control, Kobe Pharma Research Institute, Nippon Boehringer Ingelheim Co., Ltd
| | - Koichi Wada
- Department of Chemistry, Manufacturing and Control, Kobe Pharma Research Institute, Nippon Boehringer Ingelheim Co., Ltd
| | - Yukinori Yamauchi
- Department of Pharmaceutical Physical Chemistry, College of Pharmaceutical Sciences, Matsuyama University
| | - Yoshiki Seto
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka
| | - Hideyuki Sato
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka
| | - Satomi Onoue
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka
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Sato H, Ogino M, Yakushiji K, Suzuki H, Shiokawa KI, Kikuchi H, Seto Y, Onoue S. Ginger Extract-Loaded Solid Dispersion System with Enhanced Oral Absorption and Antihypothermic Action. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:1365-1370. [PMID: 28132501 DOI: 10.1021/acs.jafc.6b04740] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The aim of this study is to enhance the antihypothermic action of ginger extract (GE) employing a solid dispersion (SD) approach. The prepared SD of GE (GE/SD) was characterized in terms of physicochemical and pharmacokinetic properties. The antihypothermic action of GE samples was evaluated in a rat model of hypothermia. GE/SD exhibited improved dissolution behavior of the major active ingredients in GE, 6-gingerol (6G) and 8-gingerol (8G), with levels of dissolution 12- and 31-fold higher than that of GE, respectively. Even after storage under accelerated conditions, limited degradations of 6G and 8G were observed in GE/SD, although 6G and 8G were slightly degraded in GE. After oral administration of GE (300 mg/kg) and GE/SD (100 mg of GE/kg), the relative bioavailabilities of 6G and 8G in GE/SD were 5.0- and 5.8-fold higher than those in GE, respectively. Orally administered GE/SD (30 mg of GE/kg) inhibited ethanol-evoked hypothermia because of improved oral absorption of 6G and 8G. From these observations, the SD approach might be efficacious for enhancing the nutraceutical potentials of GE.
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Affiliation(s)
- Hideyuki Sato
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Mizuki Ogino
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Keisuke Yakushiji
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Hiroki Suzuki
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Ken-Ichi Shiokawa
- Japan Preventive Medical Laboratory Company, Ltd. , 3-6-36 Toyoda, Suruga-ku, Shizuoka 422-8027, Japan
| | - Hiroshi Kikuchi
- Japan Preventive Medical Laboratory Company, Ltd. , 3-6-36 Toyoda, Suruga-ku, Shizuoka 422-8027, Japan
| | - Yoshiki Seto
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Satomi Onoue
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka , 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
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Maniruzzaman M, Ross SA, Islam MT, Scoutaris N, Nair A, Douroumis D. Increased dissolution rates of tranilast solid dispersions extruded with inorganic excipients. Drug Dev Ind Pharm 2017; 43:947-957. [DOI: 10.1080/03639045.2017.1287716] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Mohammed Maniruzzaman
- Faculty of Engineering and Science, School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent, UK
| | - Steven A. Ross
- Faculty of Engineering and Science, School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent, UK
| | - Muhammad Tariqul Islam
- Faculty of Engineering and Science, School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent, UK
| | - Nikolaos Scoutaris
- Faculty of Engineering and Science, School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent, UK
| | - Arun Nair
- Fuji Chemical Industry Co, Ltd, International Business Division, Minato-Ward, Tokyo, Japan
| | - Dennis Douroumis
- Faculty of Engineering and Science, School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent, UK
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Ueda H, Kadota K, Imono M, Ito T, Kunita A, Tozuka Y. Co-amorphous Formation Induced by Combination of Tranilast and Diphenhydramine Hydrochloride. J Pharm Sci 2016; 106:123-128. [PMID: 27539557 DOI: 10.1016/j.xphs.2016.07.009] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 06/29/2016] [Accepted: 07/12/2016] [Indexed: 12/12/2022]
Abstract
In this study, we investigated the formation of a co-amorphous system of tranilast (TRL) and diphenhydramine hydrochloride (DPH), which are drugs used for treating allergies and inflammation. The crystallization from undercooled melts of the drugs and drug mixtures was evaluated by thermal analysis. Both drugs in the amorphous state underwent crystallization on heating, although the mixture remained in the amorphous state, indicating the formation of a co-amorphous system. The physicochemical properties of co-amorphous TRL-DPH prepared by the melting-cooling process were studied. The glass transition temperature of co-amorphous TRL-DPH deviated from the theoretical value. The enthalpy relaxation rate of the amorphous drugs, which reflected the molecular mobility, was reduced by the formation of a co-amorphous system. The intermolecular interactions between TRL and DPH in the co-amorphous system were measured by the change in the IR spectra. These results were consistent with the high physical stability. The co-amorphous sample remained in the amorphous state for over 30 days at 40°C, whereas the amorphous drugs showed rapid crystallization. Our findings demonstrate that TRL and DPH form a co-amorphous system, which dramatically decreases their crystallization without an excipient.
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Affiliation(s)
- Hiroshi Ueda
- Laboratory of Formulation Design and Pharmaceutical Technology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan; Physicochemical and Preformulation, Applied Chemistry and Analysis, Research Laboratory for Development, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan
| | - Kazunori Kadota
- Laboratory of Formulation Design and Pharmaceutical Technology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - Masaaki Imono
- Laboratory of Formulation Design and Pharmaceutical Technology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan; Physicochemical and Preformulation, Applied Chemistry and Analysis, Research Laboratory for Development, Shionogi & Co., Ltd., Toyonaka, Osaka, Japan
| | - Takuya Ito
- Laboratory of Formulation Design and Pharmaceutical Technology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - Ayaka Kunita
- Laboratory of Formulation Design and Pharmaceutical Technology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan
| | - Yuichi Tozuka
- Laboratory of Formulation Design and Pharmaceutical Technology, Osaka University of Pharmaceutical Sciences, Takatsuki, Osaka, Japan.
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27
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Li S, Yu T, Tian Y, McCoy CP, Jones DS, Andrews GP. Mechanochemical Synthesis of Pharmaceutical Cocrystal Suspensions via Hot Melt Extrusion: Feasibility Studies and Physicochemical Characterization. Mol Pharm 2016; 13:3054-68. [DOI: 10.1021/acs.molpharmaceut.6b00134] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Shu Li
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
| | - Tao Yu
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
| | - Yiwei Tian
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
| | - Colin P. McCoy
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
| | - David S. Jones
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
| | - Gavin P. Andrews
- Pharmaceutical Engineering Group, School of Pharmacy,
Medical Biology Centre, Queen’s University, Belfast BT9, Northern Ireland
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28
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Kerdsakundee N, Mahattanadul S, Wiwattanapatapee R. Development and evaluation of gastroretentive raft forming systems incorporating curcumin-Eudragit® EPO solid dispersions for gastric ulcer treatment. Eur J Pharm Biopharm 2015; 94:513-20. [DOI: 10.1016/j.ejpb.2015.06.024] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2015] [Revised: 05/22/2015] [Accepted: 06/08/2015] [Indexed: 11/26/2022]
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29
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Khadka P, Ro J, Kim H, Kim I, Kim JT, Kim H, Cho JM, Yun G, Lee J. Pharmaceutical particle technologies: An approach to improve drug solubility, dissolution and bioavailability. Asian J Pharm Sci 2014. [DOI: 10.1016/j.ajps.2014.05.005] [Citation(s) in RCA: 462] [Impact Index Per Article: 46.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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30
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Chen XQ, Stefanski K, Shen H, Huang C, Caporuscio C, Yang W, Lam P, Su C, Gudmundsson O, Hageman M. Oral Delivery of Highly Lipophilic Poorly Water-Soluble Drugs: Spray-Dried Dispersions to Improve Oral Absorption and Enable High-Dose Toxicology Studies of a P2Y1 Antagonist. J Pharm Sci 2014; 103:3924-3931. [DOI: 10.1002/jps.24199] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Revised: 09/18/2014] [Accepted: 09/19/2014] [Indexed: 02/06/2023]
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31
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Jain S, Patel N, Lin S. Solubility and dissolution enhancement strategies: current understanding and recent trends. Drug Dev Ind Pharm 2014; 41:875-87. [PMID: 25342479 DOI: 10.3109/03639045.2014.971027] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Identification of lead compounds with higher molecular weight and lower aqueous solubility has become increasingly prevalent with the advent of high throughput screening. Poor aqueous solubility of these lipophilic compounds can drastically affect the dissolution rate and subsequently the drug absorbed in the systemic circulation, imposing a significant burden of time and money during drug development process. Various pre-formulation and formulation strategies have been applied in the past that can improve the aqueous solubility of lipophilic compounds by manipulating either the crystal lattice properties or the activity coefficient of a solute in solution or both, if possible. However, despite various strategies available in the armor of formulation scientist, solubility issue still remains an overriding problem in the drug development process. It is perhaps due to the insufficient conceptual understanding of solubility and dissolution phenomenon that hinders the judgment in selecting suitable strategy for improving aqueous solubility and/or dissolution rate. This article, therefore, focuses on (i) revisiting the theoretical and mathematical concepts associated with solubility and dissolution, (ii) their application in making rationale decision for selecting suitable pre-formulation and formulation strategies and (iii) the relevant research performed in this field in past decade.
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Affiliation(s)
- Shashank Jain
- College of Pharmacy and Health Sciences, St. John's University , Queens, NY , USA
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32
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Onoue S, Terasawa N, Nakamura T, Yuminoki K, Hashimoto N, Yamada S. Biopharmaceutical characterization of nanocrystalline solid dispersion of coenzyme Q10 prepared with cold wet-milling system. Eur J Pharm Sci 2014; 53:118-25. [DOI: 10.1016/j.ejps.2013.12.013] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2013] [Revised: 12/03/2013] [Accepted: 12/17/2013] [Indexed: 11/29/2022]
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Salmani JMM, Lv H, Asghar S, Zhou J. Amorphous solid dispersion with increased gastric solubility in tandem with oral disintegrating tablets: a successful approach to improve the bioavailability of atorvastatin. Pharm Dev Technol 2014; 20:465-72. [PMID: 24490758 DOI: 10.3109/10837450.2014.882938] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
CONTEXT Serious efforts have been made to overcome the bioavailability problems of ever increasing number of poorly soluble drugs, including atorvastatin (ATO); however, enhancing its gastric solubility has not received much attention. OBJECTIVES To improve the bioavailability of ATO by increasing its gastric solubility in a stable oral disintegration tablet (ODT) formulation. MATERIALS AND METHODS Amorphous solid dispersion (ASD) of ATO with Eudragit® EPO was used as API in ODT formulation. Characterization using Differential scanning calorimetry, Powder X-ray diffraction, Fourier transform infrared drug-polymer interaction simulated by molecular modeling, solubility, dissolution and stability studies together with in vivo evaluation. RESULTS AND DISCUSSION In ASD there was uniform distribution of drug in the polymer and it retained the amorphous nature without any chemical interactions except the possibility of hydrogen bond formation, with substantially higher gastric solubility. The dissolution profile of the ODT containing ASD was significantly improved >90% within 15 min compared with 25% of plain ATO formulation. In vivo results showed an overall enhancement in the apparent bioavailability (83% and 434% more than Lipitor® and plain amorphous ATO tablets, respectively). Combining the ASD with ODT presents a reliable solution to overcome the low solubility and bioavailability problems of ATO in a simple, robust and cost effective formulation.
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Affiliation(s)
- Jumah Masoud M Salmani
- Department of Pharmaceutics, China Pharmaceutical University , Nanjing , People's Republic of China
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Onoue S, Yamamoto K, Kawabata Y, Yamada S. In vitro/in vivo characterization of nanocrystalline formulation of tranilast with improved dissolution and hepatoprotective properties. Eur J Pharm Biopharm 2013; 85:952-7. [DOI: 10.1016/j.ejpb.2013.09.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Revised: 06/27/2013] [Accepted: 09/07/2013] [Indexed: 11/15/2022]
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35
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Onoue S, Nakamura T, Uchida A, Ogawa K, Yuminoki K, Hashimoto N, Hiza A, Tsukaguchi Y, Asakawa T, Kan T, Yamada S. Physicochemical and biopharmaceutical characterization of amorphous solid dispersion of nobiletin, a citrus polymethoxylated flavone, with improved hepatoprotective effects. Eur J Pharm Sci 2013; 49:453-60. [PMID: 23707470 DOI: 10.1016/j.ejps.2013.05.014] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 05/09/2013] [Accepted: 05/13/2013] [Indexed: 01/07/2023]
Abstract
The present study aimed to develop an amorphous solid dispersion (SD) of nobiletin (NOB), a citrus polymethoxylated flavone, with the aim of improving its biopharmaceutical and hepatoprotective properties. SD formulation of NOB (NOB/SD) was prepared by wet-milling and subsequent freeze drying, and its stability and dissolution properties were characterized. The hepatoprotective effects and pharmacokinetic behavior of orally dosed NOB/SD were evaluated in rats. During the storage of NOB/SD for 4 weeks under accelerated conditions, there were no significant transitions in the appearance, particle size, and amorphousity of wet-milled NOB. In comparison with crystalline NOB, the NOB/SD exhibited significant improvement in the dissolution with a 10-fold higher dissolution rate. In a rat model of acute liver injury, repeated treatment with NOB/SD (2 mg NOB/kg) every 4 h led to marked attenuation of hepatic damage as evidenced by decreased ALT and AST, surrogate biomarkers for hepatic injury; however, crystalline NOB was found to be less effective. After oral administration of NOB/SD (2 mg NOB/kg) in rats, compared with crystalline NOB, improved pharmacokinetic behavior was observed with increases of bioavailability and hepatic delivery by ca. 7- and 6-fold, respectively, possibly leading to better hepatoprotection. Given the improved physicochemical and biopharmaceutical properties, the SD formulation strategy might be efficacious for enhancing the therapeutic potential of NOB.
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Affiliation(s)
- Satomi Onoue
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
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Onoue S, Kojo Y, Suzuki H, Yuminoki K, Kou K, Kawabata Y, Yamauchi Y, Hashimoto N, Yamada S. Development of novel solid dispersion of tranilast using amphiphilic block copolymer for improved oral bioavailability. Int J Pharm 2013; 452:220-6. [PMID: 23694807 DOI: 10.1016/j.ijpharm.2013.05.022] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Revised: 04/10/2013] [Accepted: 05/03/2013] [Indexed: 02/06/2023]
Abstract
The present study aimed to develop novel solid dispersion (SD) of tranilast (TL) using amphiphilic block copolymer, poly[MPC-co-BMA] (pMB), to improve the dissolution and pharmacokinetic behavior of TL. pMB-based SD of TL (pMB-SD/TL) with drug loading of 50% (w/w) was prepared by wet-mill technology, and the physicochemical properties were characterized in terms of morphology, crystallinity, dissolution, and hygroscopicity. Powder X-ray diffraction and polarized light microscopic experiments demonstrated high crystallinity of TL in pMB-SD/TL. The pMB-SD/TL exhibited immediate micellization when introduced to aqueous media, forming fine droplets with a mean diameter of ca. 122 nm. There was marked improvement in the dissolution behavior for the pMB-SD/TL even under acidic conditions, although the supersaturated TL concentration gradually decreased. NMR analyses demonstrated interaction between TL and pMB, as evidenced by the chemical shift drifting and line broadening. Pharmacokinetic behaviors of orally dosed TL formulations were evaluated in rats using UPLC/ESI-MS. After oral administration of pMB-SD/TL (10mg TL/kg) in rats, enhanced TL exposure was observed with increases of Cmax and AUC by 125- and 52-fold, respectively, compared with those of crystalline TL. From these findings, pMB-based SD formulation approach might be an efficacious approach for enhancing the therapeutic potential of TL.
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Affiliation(s)
- Satomi Onoue
- Department of Pharmacokinetics and Pharmacodynamics, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
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37
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Taniguchi C, Inoue R, Kato M, Yamashita K, Kawabata Y, Wada K, Yamada S, Onoue S. New Dipyridamole Salt with Improved Dissolution and Oral Bioavailability under Hypochlorhydric Conditions. Drug Metab Pharmacokinet 2013; 28:383-90. [DOI: 10.2133/dmpk.dmpk-12-rg-139] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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