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Tzanova MM, Larsen BS, Birolo R, Cignolini S, Tho I, Chierotti MR, Perissutti B, Scaglione S, Stein PC, Hiorth M, Di Cagno MP. Shifting the Focus from Dissolution to Permeation: Introducing the Meso-fluidic Chip for Permeability Assessment (MCPA). J Pharm Sci 2024; 113:1319-1329. [PMID: 38104888 DOI: 10.1016/j.xphs.2023.12.012] [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: 09/08/2023] [Revised: 12/12/2023] [Accepted: 12/12/2023] [Indexed: 12/19/2023]
Abstract
In response to the growing ethical and environmental concerns associated with animal testing, numerous in vitro tools of varying complexity and biorelevance have been developed and adopted in pharmaceutical research and development. In this work, we present one of these tools, i.e., the Meso-fluidic Chip for Permeability Assessment (MCPA), for the first time. The MCPA combines an artificial barrier (PermeaPad®) with an organ-on-chip device (MIVO®) and real-time automated concentration measurements, to yield a sustainable, yet effortless method for permeation testing. The system offers three major physiological aspects, i.e., a biomimetic membrane, an optimal membrane interfacial area-to-donor-volume-ratio (A/V) and a physiological flow on the acceptor/basolateral side, which makes the MPCA an ideal candidate for mechanistic studies and excellent in vivo bioavailability predictions. We validated the method with a handful of assorted drug compounds in unstirred and stirred donor conditions, before exploring its applicability as a tool for dissolution/permeation testing on a BCS class III/I drug (pyrazinamide) crystalline adducts and BCS class II/IV (hydrocortisone) amorphous solid dispersions. The results were highly reproducible and clearly displayed the method's potential for evaluating the performance of enabling formulations, and possibly even predicting in vivo performance. We believe that, upon further development, the MCPA will serve as a useful in vitro tool that could push sustainability into pharmaceutics by refining, reducing and replacing animal testing in early-stage drug development.
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Affiliation(s)
- Martina M Tzanova
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Sem Saelands vei 3, 0371 Oslo, Norway
| | - Bjarke Strøm Larsen
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Sem Saelands vei 3, 0371 Oslo, Norway
| | - Rebecca Birolo
- Department of Chemistry and NIS centre, University of Torino, Via P. Giuria 7, 10125 Torino, Italy
| | - Sara Cignolini
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via Alfonso Valerio, 6/1, 34127 Trieste, Italy
| | - Ingunn Tho
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Sem Saelands vei 3, 0371 Oslo, Norway
| | - Michele R Chierotti
- Department of Chemistry and NIS centre, University of Torino, Via P. Giuria 7, 10125 Torino, Italy
| | - Beatrice Perissutti
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via Alfonso Valerio, 6/1, 34127 Trieste, Italy
| | - Silvia Scaglione
- National Research Council (CNR) and React4life S.p.A., Genoa, Italy
| | - Paul C Stein
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, 5230 Odense, Denmark
| | - Marianne Hiorth
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Sem Saelands vei 3, 0371 Oslo, Norway
| | - Massimiliano Pio Di Cagno
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, University of Oslo, Sem Saelands vei 3, 0371 Oslo, Norway.
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Kimata R, Yoshihara N, Tomita Y, Terukina T, Kondo H. Polymer Characteristics for Drug Layering on Particles Using a Novel Melt Granulation Technology, MALCORE ®. AAPS PharmSciTech 2024; 25:81. [PMID: 38600252 DOI: 10.1208/s12249-024-02798-7] [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] [Received: 01/10/2024] [Accepted: 03/25/2024] [Indexed: 04/12/2024] Open
Abstract
MALCORE®, a novel manufacturing technology for drug-containing particles (DCPs), relies on the melt granulation method to produce spherical particles with high drug content. The crucial aspect of particle preparation through MALCORE® involves utilizing polymers that dissolve in the melt component, thereby enhancing viscosity upon heating. However, only aminoalkyl methacrylate copolymer E (AMCE) has been previously utilized. Therefore, this study aims to discover other polymers and comprehend the essential properties these polymers need to possess. The results showed that polyvinylpyrrolidone (PVP) was soluble in the stearic acid (SA) melt component. FTIR examination revealed no interaction between SA and polymer. The phase diagram was used to analyze the state of the SA and polymer mixture during heating. It revealed the mixing ratio and temperature range where the mixture remained in a liquid state. The viscosity of the mixture depended on the quantity and molecular weight of the polymer dissolved in SA. Furthermore, the DCPs prepared using PVP via MALCORE® exhibited similar pharmaceutical properties to those prepared with AMCE. In conclusion, understanding the properties required for polymers in the melt granulation process of MALCORE® allows for the optimization of manufacturing conditions, such as temperature and mixing ratios, for efficient and consistent drug layering.
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Affiliation(s)
- Ryota Kimata
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka, 422-8526, Japan
- Pharmaceutical Development Department, Sawai Pharmaceutical Co., Ltd, 2-30, Miyahara 5-Chome, Yodogawa-Ku, Osaka, 532-0003, Japan
| | - Naoki Yoshihara
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka, 422-8526, Japan
- Pharmaceutical Development Department, Sawai Pharmaceutical Co., Ltd, 2-30, Miyahara 5-Chome, Yodogawa-Ku, Osaka, 532-0003, Japan
| | - Yuya Tomita
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka, 422-8526, Japan
| | - Takayuki Terukina
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka, 422-8526, Japan
| | - Hiromu Kondo
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka, 422-8526, Japan.
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How to Improve Solubility and Dissolution of Irbesartan by Fabricating Ternary Solid Dispersions: Optimization and In-Vitro Characterization. Pharmaceutics 2022; 14:pharmaceutics14112264. [PMID: 36365083 PMCID: PMC9693646 DOI: 10.3390/pharmaceutics14112264] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 10/18/2022] [Accepted: 10/20/2022] [Indexed: 01/25/2023] Open
Abstract
The purpose of this study is to improve the solubility and dissolution of a poorly soluble drug, Irbesartan, using solid dispersion techniques. For that purpose, different polymers such as Soluplus®, Kollidon® VA 64, Kolliphor® P 407, and Polyinylpyrrolidone (PVP-K30) were used as carriers at different concentrations to prepare solid dispersion formulations through the solvent evaporation method. In order to prepare binary dispersion formulations, Soluplus® and Kollidon® VA 64 were used at drug: polymer ratios of 1:1, 1:2, 1:3, and 1:4 (w/w). Saturation solubility of the drug in the presence of used carriers was performed to investigate the quantitative increase in solubility. Dissolution studies were performed to explore the drug release behavior from the prepared dispersions. Additionally, the characterization of the prepared formulations was carried out by performing DSC, SEM, XRD, and FTIR studies. The results revealed that among binary systems, K4 formulation (Drug: Kollidon® VA 64 at ratio of 1:4 w/w) exhibited optimal performance in terms of increased solubility, drug release, and other investigated parameters. Furthermore, ternary dispersion formulations of the optimized binary formulation were prepared with two more polymers, Kolliphor® P 407 and Polyvinylpyrrolidone (PVP-K30), at (Drug: Kollidon® VA 64:ternary polymer) ratios of 1:4:1, 1:4:2, and 1:4:3 (w/w). The results showed that KPVP (TD3) exhibited the highest increase in solubility, as well as dissolution rate, among ternary solid dispersion formulations. Results of solubility enhancement by ternary solid dispersion formulations were also supported by FTIR, DSC, XRD, and SEM analysis. Conclusively, it was found that the ternary solid dispersion-based systems were more effective compared to the binary combinations in improving solubility as well as dissolution of a poorly soluble drug (Irbesartan).
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Tipduangta P, Belton P, McAuley WJ, Qi S. The use of polymer blends to improve stability and performance of electrospun solid dispersions: The role of miscibility and phase separation. Int J Pharm 2021; 602:120637. [PMID: 33901595 DOI: 10.1016/j.ijpharm.2021.120637] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 04/19/2021] [Accepted: 04/20/2021] [Indexed: 02/06/2023]
Abstract
Solid dispersion-based nanofiber formulations of poorly soluble drugs prepared by electrospinning (ES) with a water-soluble polymer, can offer significant improvements in drug dissolution for oral drug administration. However, when hygroscopic polymers, such as polyvinylpyrrolidone (PVP) are used, environmental moisture sorption can lead to poor physical stability on storage. This study investigated the use of polymer blends to modify PVP-based ES formulations of a model poorly soluble drug, fenofibrate (FF), to improve its physical stability without compromising dissolution enhancement. FF-PVP ES dispersions demonstrated clear dissolution enhancement, but poor storage stability against high humidity. Polymer blends of PVP with Eudragit E, Soluplus and hypromellose acetate succinate (HPMCAS), were selected because of the low intrinsic moisture sorption of these polymers. The drug-polymer and polymer-polymer miscibility study revealed that FF was more miscible with Eudragit E and Soluplus than with PVP and HPMCAS, and that PVP was more miscible with HPMCAS than Eudragit E and Soluplus. This led to different configurations of phase separation in the placebo and drug-loaded fibres. The in vitro drug release data confirmed that the use of PVP-Eudragit E retained the dissolution enhancement of the PVP formulation, whereas PVP-Soluplus reduced the drug release rate in comparison to FF-PVP formulations. The moisture sorption results confirmed that moisture uptake by the polymer blends was reduced, but formulation deformation occurred to phase-separated blend formulations. The data revealed the importance of miscibility and phase separation in understanding the physical stability of the ES fibre mats. The findings provide insight into the design of formulations that can provide dissolution enhancement balanced with improved storage stability.
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Affiliation(s)
- Pratchaya Tipduangta
- School of Pharmacy, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK; Department of Pharmaceutical Science, Faculty of Pharmacy, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Peter Belton
- School of Chemistry, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK
| | - William J McAuley
- Centre for Research in Topical Drug Delivery and Toxicology, School of Life and Medical Sciences, University of Hertfordshire, College Lane, Hatfield AL10 9AB, UK
| | - Sheng Qi
- School of Pharmacy, University of East Anglia, Norwich, Norfolk NR4 7TJ, UK.
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Aidana Y, Wang Y, Li J, Chang S, Wang K, Yu DG. Fast Dissolution Electrospun Medicated Nanofibers for Effective Delivery of Poorly Water-Soluble Drugs. Curr Drug Deliv 2021; 19:422-435. [PMID: 33588728 DOI: 10.2174/1567201818666210215110359] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2020] [Revised: 12/12/2020] [Accepted: 12/23/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Electrospinning is developing rapidly from an earlier laboratory method into an industrial process. The clinical applications are approached in various ways through electrospun medicated nanofibers. The fast-dissolving oral drug delivery system (DDS) among them is one of the most promising routes in the near future for commercial applications. METHODS Related papers are investigated, including the latest research results, on electrospun nanofiber-based fast-dissolution DDSs. RESULTS Several relative topics have been concluded: 1) the development of electrospinning, ranging from 1-fluid blending to multi-fluid process and potential applications in the formation of medicated nanofibers involving poorly water-soluble drugs; 2) Selection of appropriate polymer matrices and drug carriers for filament formation; 3) Types of poorly water-soluble drugs ideal for fast oral delivery; 4) The methods for evaluating fast-dissolving nanofibers; 5) The mechanisms that promote the fast dissolution of poorly water-soluble drugs by electrospun nanofibers; 6) the important issues for further development of electrospun medicated nanofibers as oral fast-dissolving drug delivery systems. Conclusions & Perspectives: The unique properties of electrospun-medicated nanofibers can be used as oral fast dissolving DDSs of poorly water-soluble drugs. However, some significant issues need to be investigated, such as scalable productions and solid dosage form conversions.
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Affiliation(s)
- Yrysbaeva Aidana
- School of Materials Science & Engineering, University of Shanghai for Science & Technology, Shanghai 200093. China
| | - Yibin Wang
- School of Materials Science & Engineering, University of Shanghai for Science & Technology, Shanghai 200093. China
| | - Jie Li
- School of Materials Science & Engineering, University of Shanghai for Science & Technology, Shanghai 200093. China
| | - Shuyue Chang
- School of Materials Science & Engineering, University of Shanghai for Science & Technology, Shanghai 200093. China
| | - Ke Wang
- School of Materials Science & Engineering, University of Shanghai for Science & Technology, Shanghai 200093. China
| | - Deng-Guang Yu
- School of Materials Science & Engineering, University of Shanghai for Science & Technology, Shanghai 200093. China
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Aung NN, Ngawhirunpat T, Rojanarata T, Patrojanasophon P, Opanasopit P, Pamornpathomkul B. Enhancement of transdermal delivery of resveratrol using Eudragit and polyvinyl pyrrolidone-based dissolving microneedle patches. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102284] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Physicochemical Characterization of a Co-Amorphous Atorvastatin-Irbesartan System with a Potential Application in Fixed-Dose Combination Therapy. Pharmaceutics 2021; 13:pharmaceutics13010118. [PMID: 33477672 PMCID: PMC7831949 DOI: 10.3390/pharmaceutics13010118] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2020] [Revised: 01/13/2021] [Accepted: 01/14/2021] [Indexed: 02/06/2023] Open
Abstract
The aim of this study was to characterize a 1:1 molar ratio of a pharmacologically relevant co-amorphous atorvastatin-irbesartan (ATR-IRB) system obtained by quench cooling of the crystalline ATR/IRB physical mixture for potential use in the fixed-dose combination therapy. The system was characterized by employing standard differential scanning calorimetry (DSC), Fourier transform-infrared spectroscopy (FT-IR), and intrinsic dissolution rate studies. Quantum mechanical calculations were performed to obtain information regarding intermolecular interactions in the studied co-amorphous ATR-IRB system. The co-amorphous formulation showed a significant improvement in the intrinsic dissolution rate (IDR) of IRB over pure crystalline as well as its amorphous counterpart. An unusual behavior was observed for ATR, as the IDR of ATR in the co-amorphous formulation was slightly lower than that of amorphous ATR alone. Short-term physical aging studies of up to 8 h proved that the ATR-IRB co-amorphous system remained in the amorphous form. Furthermore, no physical aging occurred in the co-amorphous system. FT-IR, density functional theory calculations, and analysis of Tg value of co-amorphous system using the Couchman–Karasz equation revealed the presence of molecular interactions between APIs, which may contribute to the increased physical stability.
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Dziemidowicz K, Sang Q, Wu J, Zhang Z, Zhou F, Lagaron JM, Mo X, Parker GJM, Yu DG, Zhu LM, Williams GR. Electrospinning for healthcare: recent advancements. J Mater Chem B 2021; 9:939-951. [DOI: 10.1039/d0tb02124e] [Citation(s) in RCA: 41] [Impact Index Per Article: 13.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
This perspective explores recent developments and innovations in the electrospinning technique and their potential applications in biomedicine.
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Affiliation(s)
| | - Qingqing Sang
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Jinglei Wu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Ziwei Zhang
- UCL School of Pharmacy
- University College London
- London WC1N 1AX
- UK
| | - Fenglei Zhou
- UCL School of Pharmacy
- University College London
- London WC1N 1AX
- UK
- Centre for Medical Image Computing, UCL Computer Science
| | - Jose M. Lagaron
- Novel Materials and Nanotechnology Group
- Institute of Agrochemistry and Food Technology
- Spanish Council for Scientific Research
- Valencia 46100
- Spain
| | - Xiumei Mo
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Geoff J. M. Parker
- Centre for Medical Image Computing, UCL Computer Science
- University College London
- London WC1V 6LJ
- UK
| | - Deng-Guang Yu
- School of Materials Science & Engineering, University of Shanghai for Science and Technology
- Shanghai 200093
- China
| | - Li-Min Zhu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
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Musazzi UM, Khalid GM, Selmin F, Minghetti P, Cilurzo F. Trends in the production methods of orodispersible films. Int J Pharm 2020; 576:118963. [DOI: 10.1016/j.ijpharm.2019.118963] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 12/12/2019] [Accepted: 12/13/2019] [Indexed: 12/15/2022]
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10
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Preparation of irbesartan composite microparticles by supercritical aerosol solvent extraction system for dissolution enhancement. J Supercrit Fluids 2019. [DOI: 10.1016/j.supflu.2019.104594] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Cruz-Angeles J, Videa M, Martínez LM. Highly Soluble Glimepiride and Irbesartan Co-amorphous Formulation with Potential Application in Combination Therapy. AAPS PharmSciTech 2019; 20:144. [PMID: 30887140 DOI: 10.1208/s12249-019-1359-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Accepted: 03/03/2019] [Indexed: 11/30/2022] Open
Abstract
One-third of the population of the USA suffers from metabolic syndrome (MetS). Treatment of patients with MetS regularly includes drugs prescribed simultaneously to treat diabetes and cardiovascular diseases. Therefore, the development of novel multidrug formulations is recommended. However, the main problem with these drugs is their low solubility. The use of binary co-amorphous systems emerges as a promising strategy to increase drug solubility. In the present study, irbesartan (IBS) and glimepiride (GMP), class II active pharmaceutical ingredients (API), widely used in the treatment of arterial hypertension and diabetes, were selected to develop a novel binary co-amorphous system with remarkable enhancement in the dissolution of both APIs. The phase diagram of IBS-GMP was constructed and co-amorphous systems were prepared by melt-quench, in a wide range of compositions. Dissolution profile (studied at pH 1.2 and 37°C for mole fractions 0.01, 0.1, and 0.5) demonstrated that the xGMP = 0.01 formulation presents the highest enhancement in its dissolution. GMP went from being practically insoluble to reach 3.9 ± 0.9 μg/mL, and IBS showed a 12-fold increment with respect to the dissolution of its crystalline form. Infrared studies showed that the increase in the dissolution profile is related to the intermolecular interactions (hydrogen bonds), which were dependent of composition. Results of structural and thermal characterization performed by XRD and DSC showed that samples have remained in amorphous state for more than 10 months of storage. This work contributes to the development of a highly soluble co-amorphous drugs with potential used in the treatment of MetS.
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Bukhary H, Williams GR, Orlu M. Electrospun fixed dose formulations of amlodipine besylate and valsartan. Int J Pharm 2018; 549:446-455. [PMID: 30099215 DOI: 10.1016/j.ijpharm.2018.08.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2018] [Revised: 08/05/2018] [Accepted: 08/08/2018] [Indexed: 10/28/2022]
Abstract
Increasing numbers of elderly people require multi-drug therapies. One route to improve adherence rates is to prepare fixed dose combinations (FDCs), in which multiple active ingredients are loaded into a single formulation. Here, we report the use of electrospinning to prepare fast-dissolving oral FDCs containing amlodipine besylate and valsartan, two drugs prescribed as FDCs for the treatment of hypertension. Electrospun fibers were prepared loaded with one or both drugs, using polyvinylpyrrolidone as the polymer matrix. The fibers were largely cylindrical in morphology and comprise amorphous solid dispersions except with the highest loadings of amlodipine besylate. HPLC demonstrated drug entrapment efficiencies of >85% of the theoretical dose. The mats have folding endurances and thicknesses suitable for use as oral films. The amlodipine besylate-loaded systems are fast-dissolving, with >90% release obtained within 120 s. In contrast, valsartan release from its single-drug formulations took longer, ranging from 360 s to 24 min. With the FDC formulations, rapid release within 360 s was achieved when the loading was 5% w/w of each drug, but again the release time increased with drug loading. Electrospun fibers therefore have significant promise as FDCs, but the target drug and its loading need to be carefully considered.
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Affiliation(s)
- Haitham Bukhary
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK
| | - Gareth R Williams
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
| | - Mine Orlu
- UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London WC1N 1AX, UK.
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Adeli E. The use of spray freeze drying for dissolution and oral bioavailability improvement of Azithromycin. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2017.06.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Adeli E. The use of supercritical anti-solvent (SAS) technique for preparation of Irbesartan-Pluronic® F-127 nanoparticles to improve the drug dissolution. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.05.004] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Adeli E. Preparation and evaluation of azithromycin binary solid dispersions using various polyethylene glycols for the improvement of the drug solubility and dissolution rate. BRAZ J PHARM SCI 2016. [DOI: 10.1590/s1984-82502016000100002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
ABSTRACT Azithromycin is a water-insoluble drug, with a very low bioavailability. In order to increase the solubility and dissolution rate, and consequently increase the bioavailability of poorly-soluble drugs (such as azithromycin), various techniques can be applied. One of such techniques is "solid dispersion". This technique is frequently used to improve the dissolution rate of poorly water-soluble compounds. Owing to its low solubility and dissolution rate, azithromycin does not have a suitable bioavailability. Therefore, the main purpose of this investigation was to increase the solubility and dissolution rate of azithromycin by preparing its solid dispersion, using different Polyethylene glycols (PEG). Preparations of solid dispersions and physical mixtures of azithromycin were made using PEG 4000, 6000, 8000, 12000 and 20000 in various ratios, based on the solvent evaporation method. From the studied drug release profile, it was discovered that the dissolution rate of the physical mixture, as the well as the solid dispersions, were higher than those of the drug alone. There was no chemical incompatibility between the drug and polymer from the observed Infrared (IR) spectra. Drug-polymer interactions were also investigated using Differential Scanning Calorimetry (DSC), Powder X-Ray Diffraction (PXRD) and Scanning Election Microscopy (SEM). In conclusion, the dissolution rate and solubility of azithromycin were found to improve significantly, using hydrophilic carriers, especially PEG 6000.
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Affiliation(s)
- Ehsan Adeli
- Shahid Beheshti University of Medical Sciences, Iran
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16
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Chen J, Wang X, Zhang W, Yu S, Fan J, Cheng B, Yang X, Pan W. A novel application of electrospinning technique in sublingual membrane: characterization, permeation and in vivo study. Drug Dev Ind Pharm 2016; 42:1365-74. [DOI: 10.3109/03639045.2015.1135939] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Jianting Chen
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Xiaoyu Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Wenji Zhang
- Department of Forensic Medicine, National Police University, Shenyang, China
| | - Shihui Yu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Jinwu Fan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Bingchao Cheng
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Xinggang Yang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Weisan Pan
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
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17
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Feldman D. Polymer nanocomposites in medicine. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2016. [DOI: 10.1080/10601325.2016.1110459] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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