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Creteanu A, Lisa G, Vasile C, Popescu MC, Pamfil D, Lungu CN, Panainte AD, Tantaru G. New Hydrophilic Matrix Tablets for the Controlled Released of Chlorzoxazone. Int J Mol Sci 2024; 25:5137. [PMID: 38791175 PMCID: PMC11120910 DOI: 10.3390/ijms25105137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2024] [Revised: 05/02/2024] [Accepted: 05/04/2024] [Indexed: 05/26/2024] Open
Abstract
The modified release of active substances such as chlorzoxazone from matrix tablets, based on Kollidon®SR and chitosan, depends both on the drug solubility in the dissolution medium and on the matrix composition. The aim of this study is to obtain some new oral matrix tablet formulations, based on Kollidon®SR and chitosan, in order to optimize the low-dose oral bioavailability of chlorzoxazone, a non-steroidal anti-inflammatory drug of class II Biopharmaceutical Classification System. Nine types of chlorzoxazone matrix tablets were obtained using the direct compression method by varying the components ratio as 1:1, 1:2, and 1:3 chlorzoxazone/excipients, 20-40 w/w % Kollidon®SR, 3-7 w/w % chitosan while the auxiliary substances: Aerosil® 1 w/w %, magnesium stearate 0.5 w/w % and Avicel® up to 100 w/w % were kept in constant concentrations. Pharmaco-technical characterization of the tablets included the analysis of flowability and compressibility properties (flow time, friction coefficient, angle of repose, Hausner ratio, and Carr index), and pharmaco-chemical characteristics (such as mass and dose uniformity, thickness, diameter, mechanical strength, friability, softening degree, and in vitro release profiles). Based on the obtained results, only three matrix tablet formulations (F1b, F2b, and F3b, containing 30 w/w % KOL and 5 w/w % CHT, were selected and further tested. These formulations were studied in detail by Fourier-transform infrared spectrometry, X-ray diffraction, thermogravimetry, and differential scanning calorimetry. The three formulations were comparatively studied regarding the release kinetics of active substances using in vitro release testing. The results were analyzed by fitting into four representative mathematical models for the modified-release oral formulations. In vitro kinetic study revealed a complex mechanism of release occurring in two steps of drug release, the first step (0-2 h) and the second (2-36 h). Two factors were calculated to assess the release profile of chlorzoxazone: f1-the similarity factor, and f2-the factor difference. The results have shown that both Kollidon®SR and chitosan may be used as matrix-forming agents when combined with chlorzoxazone. The three formulations showed optima pharmaco-technical properties and in vitro kinetic behavior; therefore, they have tremendous potential to be used in oral pharmaceutical products for the controlled delivery of chlorzoxazone. In vitro dissolution tests revealed a faster drug release for the F2b sample.
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Affiliation(s)
- Andreea Creteanu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iași, Romania;
| | - Gabriela Lisa
- Department of Chemical Engineering, Faculty of Chemical Engineering and Environmental Protection, “Gheorghe Asachi” Technical University, 73 Dimitrie Mangeron Prof., Str., 700050 Iași, Romania;
| | - Cornelia Vasile
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Gr. Ghica Voda Alley, 700487 Iași, Romania; (C.V.); (M.-C.P.); (D.P.)
| | - Maria-Cristina Popescu
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Gr. Ghica Voda Alley, 700487 Iași, Romania; (C.V.); (M.-C.P.); (D.P.)
| | - Daniela Pamfil
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry, 41A Gr. Ghica Voda Alley, 700487 Iași, Romania; (C.V.); (M.-C.P.); (D.P.)
| | - Claudiu N. Lungu
- Departament of Functional and Morphological Science, Faculty of Medicine and Pharamacy, Dunarea de Jos University, 800008 Galati, Romania
| | - Alina Diana Panainte
- Department of Analytical Chemistry, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iași, Romania;
| | - Gladiola Tantaru
- Department of Analytical Chemistry, Faculty of Pharmacy, “Grigore T. Popa” University of Medicine and Pharmacy, 16 Universitatii Street, 700115 Iași, Romania;
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2
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Feng SJ, Zhang X, Zheng QT, Chen HX, Zhao Y, Yang CBX. Modeling the spreading and remediation efficiency of slow-release oxidants in a fractured and contaminated low-permeability stratum. CHEMOSPHERE 2023:139271. [PMID: 37422215 DOI: 10.1016/j.chemosphere.2023.139271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 06/14/2023] [Accepted: 06/16/2023] [Indexed: 07/10/2023]
Abstract
Traditional remediation technologies cannot well remediate the low permeability contaminated stratums due to the limitation in the transport capacity of solute. The technology that integrates the fracturing and/or slow-released oxidants can be a new alternative, and its remediation efficiency remains unknown. In this study, an explicit dissolution-diffusion solution for the oxidants in control release beads (CRBs) was developed to describe the time-varying release of oxidants. Together with advection, diffusion, dispersion and the reactions with oxidants and natural oxidants, a two-dimensional axisymmetric model of solute transport in a fracture-soil matrix system was established to compare the removal efficiencies of CRB oxidants and liquid oxidants and to identify the main factors that can significantly affect the remediation of fractured low-permeability matrix. The results show that CRB oxidants can achieve a more effective remediation than liquid oxidants under the same condition due to the more uniform distribution of oxidants in the fracture and hence a higher utilization rate. Increasing the dose of the embedded oxidants can benefit the remediation to some extent, while at small doses the release time over 20 d has little impact. For extremely low-permeability contaminated stratums, the remediation effect can be significantly improved if the average permeability of the fractured soil can be enhanced to more than 10-7 m/s. Increasing the injection pressure at a single fracture during the treatment can enlarge the influence distance of the slow-released oxidants above the fracture (e.g., 0.3-0.9 m in this study) rather than below the fracture (e.g., 0.3 m in this study). In general, this work is expected to provide some meaningful guidance for the design of fracturing and remediating low permeability contaminated stratums.
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Affiliation(s)
- Shi-Jin Feng
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China
| | - Xu Zhang
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
| | - Qi-Teng Zheng
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China.
| | - Hong-Xin Chen
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
| | - Yong Zhao
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
| | - Chun-Bai-Xue Yang
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
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3
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Wani TU, Fazli AA, Raza SN, Khan NA, Sheikh FA. Formulation and Pharmacokinetic Evaluation of Ethyl Cellulose/HPMC-Based Oral Expandable Sustained Release Dosage of Losartan Potassium. AAPS PharmSciTech 2022; 23:160. [PMID: 35676602 DOI: 10.1208/s12249-022-02295-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2022] [Accepted: 05/02/2022] [Indexed: 11/30/2022] Open
Abstract
Prolonged retention of losartan potassium in the upper gastrointestinal tract is anticipated to increase its absorption and exposure to CYP450 enzyme subfamilies, undertaking its conversion to more potent (10-40 times) active metabolite, losartan carboxylic acid (LCA). Consistent with this, hydroxypropyl methylcellulose K4M/ethyl cellulose-based novel expandable films (EFs) containing losartan potassium (LP) suitable for prolonged retention in the stomach were developed. The films were prepared by solvent casting method. USP type II dissolution apparatus (0.1 N HCl, 37°C, 100 rpm) was used to perform the dissolution testing (drug release, unfolding behavior, film integrity, erosion, and water uptake) of the films. In vivo pharmacokinetic studies were carried out in rabbits. An HPLC-UV method was used for the quantification of the drug and its active metabolite in plasma. These folded films placed inside hard gelatin capsule shells unfolded to full dimensions in dissolution medium and provided sustained drug release throughout 12 h. The plasma drug concentration-time curves obtained from the in vivo studies were used to determine pharmacokinetic parameters, such as area under the plasma drug concentration-time curve (AUC), area under first moment curve (AUMC), mean residence time (MRT), Cmax, Tmax, t1/2, ke, and Fr in comparison with that of the market formulation, Cozaar®. The novel EFs significantly changed the pharmacokinetic parameters of the drug and its active metabolite. The apparent elimination rate constant (ke) significantly decreased, while MRT and elimination half-life (t1/2) increased in both cases. The relative bioavailabilities (Fr) of both LP and E3174 using the novel formulation were higher than that of Cozaar®.
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Affiliation(s)
- Taha Umair Wani
- Department of Pharmaceutical Sciences, School of Applied Sciences and Technology, University of Kashmir Srinagar, Kashmir, 190006, India.,Department of Nanotechnology, School of Biological Sciences, University of Kashmir Srinagar, Kashmir, 190006, India
| | - Abdul Aala Fazli
- Department of Pharmaceutical Sciences, School of Applied Sciences and Technology, University of Kashmir Srinagar, Kashmir, 190006, India
| | - Syed Naiem Raza
- Department of Pharmaceutical Sciences, School of Applied Sciences and Technology, University of Kashmir Srinagar, Kashmir, 190006, India
| | - Nisar Ahmad Khan
- Department of Pharmaceutical Sciences, School of Applied Sciences and Technology, University of Kashmir Srinagar, Kashmir, 190006, India.
| | - Faheem A Sheikh
- Department of Nanotechnology, School of Biological Sciences, University of Kashmir Srinagar, Kashmir, 190006, India.
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4
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Joshi M, Gokhale C, Kenjale P, Pokharkar V. Optimization of Diltiazem hydrochloride osmotic formulation using QBD approach. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e19779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
| | - Chinmay Gokhale
- Bharati Vidyapeeth University, India; Sai Life Sciences Ltd, India
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5
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Fager C, Gebäck T, Hjärtstam J, Röding M, Olsson A, Lorén N, von Corswant C, Särkkä A, Olsson E. Correlating 3D porous structure in polymer films with mass transport properties using FIB-SEM tomography. CHEMICAL ENGINEERING SCIENCE: X 2021. [DOI: 10.1016/j.cesx.2021.100109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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6
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Skärberg F, Fager C, Mendoza-Lara F, Josefson M, Olsson E, Lorén N, Röding M. Convolutional neural networks for segmentation of FIB-SEM nanotomography data from porous polymer films for controlled drug release. J Microsc 2021; 283:51-63. [PMID: 33797085 DOI: 10.1111/jmi.13007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/12/2021] [Accepted: 03/21/2021] [Indexed: 01/07/2023]
Abstract
Phase-separated polymer films are commonly used as coatings around pharmaceutical oral dosage forms (tablets or pellets) to facilitate controlled drug release. A typical choice is to use ethyl cellulose and hydroxypropyl cellulose (EC/HPC) polymer blends. When an EC/HPC film is in contact with water, the leaching out of the water-soluble HPC phase produces an EC film with a porous network through which the drug is transported. The drug release can be tailored by controlling the structure of this porous network. Imaging and characterization of such EC porous films facilitates understanding of how to control and tailor film formation and ultimately drug release. Combined focused ion beam and scanning electron microscope (FIB-SEM) tomography is a well-established technique for high-resolution imaging, and suitable for this application. However, for segmenting image data, in this case to correctly identify the porous network, FIB-SEM is a challenging technique to work with. In this work, we implement convolutional neural networks for segmentation of FIB-SEM image data. The data are acquired from three EC porous films where the HPC phases have been leached out. The three data sets have varying porosities in a range of interest for controlled drug release applications. We demonstrate very good agreement with manual segmentations. In particular, we demonstrate an improvement in comparison to previous work on the same data sets that utilized a random forest classifier trained on Gaussian scale-space features. Finally, we facilitate further development of FIB-SEM segmentation methods by making the data and software used open access.
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Affiliation(s)
- Fredrik Skärberg
- Bioeconomy and Health, Agriculture and Food, RISE Research Institutes of Sweden, Göteborg, Sweden
| | - Cecilia Fager
- Department of Physics, Chalmers University of Technology, Göteborg, Sweden.,Department of Fibre and Polymer Technology, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Francisco Mendoza-Lara
- Oral Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca Gothenburg, Mölndal, Sweden
| | - Mats Josefson
- Oral Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca Gothenburg, Mölndal, Sweden
| | - Eva Olsson
- Department of Physics, Chalmers University of Technology, Göteborg, Sweden
| | - Niklas Lorén
- Bioeconomy and Health, Agriculture and Food, RISE Research Institutes of Sweden, Göteborg, Sweden.,Department of Physics, Chalmers University of Technology, Göteborg, Sweden
| | - Magnus Röding
- Bioeconomy and Health, Agriculture and Food, RISE Research Institutes of Sweden, Göteborg, Sweden.,Department of Mathematical Sciences, Chalmers University of Technology and University of Gothenburg, Göteborg, Sweden
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7
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RÖDING M, FAGER C, OLSSON A, VON CORSWANT C, OLSSON E, LORÉN N. Three-dimensional reconstruction of porous polymer films from FIB-SEM nanotomography data using random forests. J Microsc 2021; 281:76-86. [PMID: 33439497 PMCID: PMC7754501 DOI: 10.1111/jmi.12950] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 06/22/2020] [Accepted: 07/23/2020] [Indexed: 11/29/2022]
Abstract
Combined focused ion beam and scanning electron microscope (FIB-SEM) tomography is a well-established technique for high resolution imaging and reconstruction of the microstructure of a wide range of materials. Segmentation of FIB-SEM data is complicated due to a number of factors; the most prominent is that for porous materials, the scanning electron microscope image slices contain information not only from the planar cross-section of the material but also from underlying, exposed subsurface pores. In this work, we develop a segmentation method for FIB-SEM data from ethyl cellulose porous films made from ethyl cellulose and hydroxypropyl cellulose (EC/HPC) polymer blends. These materials are used for coating pharmaceutical oral dosage forms (tablets or pellets) to control drug release. We study three samples of ethyl cellulose and hydroxypropyl cellulose with different volume fractions where the hydroxypropyl cellulose phase has been leached out, resulting in a porous material. The data are segmented using scale-space features and a random forest classifier. We demonstrate good agreement with manual segmentations. The method enables quantitative characterization and subsequent optimization of material structure for controlled release applications. Although the methodology is demonstrated on porous polymer films, it is applicable to other soft porous materials imaged by FIB-SEM. We make the data and software used publicly available to facilitate further development of FIB-SEM segmentation methods. LAY DESCRIPTION: For imaging of very fine structures in materials, the resolution limits of, e.g. X-ray computed tomography quickly become a bottleneck. Scanning electron microscopy (SEM) provides a way out, but it is essentially a two-dimensional imaging technique. One manner in which to extend it to three dimensions is to use a focused ion beam (FIB) combined with a scanning electron microscopy and acquire tomography data. In FIB-SEM tomography, ions are used to perform serial sectioning and the electron beam is used to image the cross section surface. This is a well-established method for a wide range of materials. However, image analysis of FIB-SEM data is complicated for a variety of reasons, in particular for porous media. In this work, we analyse FIB-SEM data from ethyl cellulose porous films made from ethyl cellulose and hydroxypropyl cellulose (EC/HPC) polymer blends. These films are used as coatings for controlled drug release. The aim is to perform image segmentation, i.e. to identify which parts of the image data constitute the pores and the solid, respectively. Manual segmentation, i.e. when a trained operator manually identifies areas constituting pores and solid, is too time-consuming to do in full for our very large data sets. However, by performing manual segmentation on a set of small, random regions of the data, we can train a machine learning algorithm to perform automatic segmentation on the entire data sets. The method yields good agreement with the manual segmentations and yields porosities of the entire data sets in very good agreement with expected values. The method facilitates understanding and quantitative characterization of the geometrical structure of the materials, and ultimately understanding of how to tailor the drug release.
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Affiliation(s)
- M. RÖDING
- RISE Research Institutes of Sweden, Biomaterials and HealthAgriculture and FoodGöteborgSweden
- Department of Mathematical SciencesChalmers University of Technology and University of GothenburgGöteborgSweden
| | - C. FAGER
- Department of PhysicsChalmers University of TechnologyGöteborgSweden
| | | | | | - E. OLSSON
- Department of PhysicsChalmers University of TechnologyGöteborgSweden
| | - N. LORÉN
- RISE Research Institutes of Sweden, Biomaterials and HealthAgriculture and FoodGöteborgSweden
- Department of PhysicsChalmers University of TechnologyGöteborgSweden
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8
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Bayoumi A, Sarg MT, Fahmy TY, Mohamed NF, El-Zawawy WK. The behavior of natural biomass materials as drug carriers in releasing loaded Gentamicin sulphate. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.10.018] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
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9
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Zaid AN. A Comprehensive Review on Pharmaceutical Film Coating: Past, Present, and Future. Drug Des Devel Ther 2020; 14:4613-4623. [PMID: 33149558 PMCID: PMC7605601 DOI: 10.2147/dddt.s277439] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2020] [Accepted: 10/02/2020] [Indexed: 11/23/2022] Open
Abstract
Pharmaceutical film coating is considered a key part in the production of solid pharmaceutical dosage forms since it gives superior organoleptic properties products. In addition, it can improve the physical and chemical stability of dosage forms, and modify the release characteristics of the drug. Several troubleshooting problems such as twinning mottling, chipping, etc., may arise during or after or even during the shelf life of the film coated dosage forms. These troubleshooting problems may be due to tablet core faults, coating formulation faults and/or coating process faults. These problems must be overcome to avoid unnecessary product problems. Film coating as well as other parts of the pharmaceutical technology is subjecting to continuous innovation. The innovation may be at different levels including pharmaceutical excipients, processes, software, guidelines and equipment. In fact, of particular note is the growing interest in process analytical technology, quality by design, continuous coating processing and the inclusion of new ready for use coating formulations. In this review, we tried to explore and discuss the status of pharmaceutical film coating, the challenges that face this manufacturing process and the latest technological advances in this important manufacturing process.
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Affiliation(s)
- Abdel Naser Zaid
- Pharmaceutical Chemistry and Technology, Pharmacy Department, Faculty of Medicine & Health Sciences, An-Najah National University, Nablus, West Bank, Palestine
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10
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3D high spatial resolution visualisation and quantification of interconnectivity in polymer films. Int J Pharm 2020; 587:119622. [PMID: 32663584 DOI: 10.1016/j.ijpharm.2020.119622] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 06/18/2020] [Accepted: 07/04/2020] [Indexed: 02/02/2023]
Abstract
A porous network acts as transport paths for drugs through films for controlled drug release. The interconnectivity of the network strongly influences the transport properties. It is therefore important to quantify the interconnectivity and correlate it to transport properties for control and design of new films. This work presents a novel method for 3D visualisation and analysis of interconnectivity. High spatial resolution 3D data on porous polymer films for controlled drug release has been acquired using a focused ion beam (FIB) combined with a scanning electron microscope (SEM). The data analysis method enables visualisation of pore paths starting at a chosen inlet pore, dividing them into groups by length, enabling a more detailed quantification and visualisation. The method also enables identification of central features of the porous network by quantification of channels where pore paths coincide. The method was applied to FIB-SEM data of three leached ethyl cellulose (EC)/hydroxypropyl cellulose (HPC) films with different weight percentages. The results from the analysis were consistent with the experimentally measured release properties of the films. The interconnectivity and porosity increase with increasing amount of HPC. The bottleneck effect was strong in the leached film with lowest porosity.
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11
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Fager C, Röding M, Olsson A, Lorén N, von Corswant C, Särkkä A, Olsson E. Optimization of FIB-SEM Tomography and Reconstruction for Soft, Porous, and Poorly Conducting Materials. MICROSCOPY AND MICROANALYSIS : THE OFFICIAL JOURNAL OF MICROSCOPY SOCIETY OF AMERICA, MICROBEAM ANALYSIS SOCIETY, MICROSCOPICAL SOCIETY OF CANADA 2020; 26:837-845. [PMID: 32438937 DOI: 10.1017/s1431927620001592] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Tomography using a focused ion beam (FIB) combined with a scanning electron microscope (SEM) is well-established for a wide range of conducting materials. However, performing FIB–SEM tomography on ion- and electron-beam-sensitive materials as well as poorly conducting soft materials remains challenging. Some common challenges include cross-sectioning artifacts, shadowing effects, and charging. Fully dense materials provide a planar cross section, whereas pores also expose subsurface areas of the planar cross-section surface. The image intensity of the subsurface areas gives rise to overlap between the grayscale intensity levels of the solid and pore areas, which complicates image processing and segmentation for three-dimensional (3D) reconstruction. To avoid the introduction of artifacts, the goal is to examine porous and poorly conducting soft materials as close as possible to their original state. This work presents a protocol for the optimization of FIB–SEM tomography parameters for porous and poorly conducting soft materials. The protocol reduces cross-sectioning artifacts, charging, and eliminates shadowing effects. In addition, it handles the subsurface and grayscale intensity overlap problems in image segmentation. The protocol was evaluated on porous polymer films which have both poor conductivity and pores. 3D reconstructions, with automated data segmentation, from three films with different porosities were successfully obtained.
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Affiliation(s)
- Cecilia Fager
- Department of Physics, Chalmers University of Technology, GothenburgSE-41296, Sweden
| | - Magnus Röding
- RISE Research Institutes of Sweden, Agrifood and Bioscience, Gothenburg, Sweden
| | - Anna Olsson
- AstraZeneca R&D Mölndal, MölndalSE43183, Sweden
| | - Niklas Lorén
- Department of Physics, Chalmers University of Technology, GothenburgSE-41296, Sweden
- RISE Research Institutes of Sweden, Agrifood and Bioscience, Gothenburg, Sweden
| | | | - Aila Särkkä
- Department of Mathematical Sciences, Chalmers University of Technology and University of Gothenburg, Gothenburg, Sweden
| | - Eva Olsson
- Department of Physics, Chalmers University of Technology, GothenburgSE-41296, Sweden
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12
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Hosny KM, Rizg WY, Khallaf RA. Preparation and Optimization of In Situ Gel Loaded with Rosuvastatin-Ellagic Acid Nanotransfersomes to Enhance the Anti-Proliferative Activity. Pharmaceutics 2020; 12:pharmaceutics12030263. [PMID: 32183144 PMCID: PMC7151021 DOI: 10.3390/pharmaceutics12030263] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 03/05/2020] [Accepted: 03/12/2020] [Indexed: 12/18/2022] Open
Abstract
The objective of this study was to develop an optimized sustained-release nanotransfersomes (NTS) based in situ gel formulation of rosuvastatin (RO) combined with ellagic acid (EA) antioxidant, to enhance cytotoxic and anti-proliferative activity against tongue carcinoma. The concentrations of lecithin, Tween 80, and d-tocopherol polyethylene glycol succinate (TPGS) were considered as independent variables. Particle size, entrapment, and stability were selected as dependent variables. The obtained formulation containing 25% lecithin, 20% Tween 80, and TPGS 15% fulfilled the prerequisites of the optimum formulation. RO-NTS loaded in situ gel was prepared and optimized for concentrations of Poloxamer 407, and Carbopol, using statistical design. Drug release from in situ gel showed a sustained release profile. The RO IC50 was decreased by half for the in situ gel in comparison to plain RO and RO-EA-NTS. A significant amount of caspase-3 was detected in all the formulation treatments. The studies indicated that EA’s synergistic anti-oxidant effect owing to a high affinity to the PGP efflux transporter and higher penetration in the RO-NTS formulation led to a higher inhibition against human chondrosarcome-3 cancer cell lines. RO-EA NTS–loaded in situ gel had a sustained release that could be significant in localized therapy as an alternative to surgery in the treatment of aggressive tongue carcinoma.
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Affiliation(s)
- Khaled M. Hosny
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62511, Egypt;
- Correspondence:
| | - Waleed Y. Rizg
- Department of Pharmaceutics, Faculty of Pharmacy, King Abdulaziz University, Jeddah 21589, Saudi Arabia;
| | - Rasha A. Khallaf
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Beni-Suef University, Beni-Suef 62511, Egypt;
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13
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Kaur S, Sivasankaran S, Wambolt E, Jonnalagadda S. Determinants of zero-order release kinetics from acetaminophen-layered Suglet® pellets, Wurster-coated with plasticized Aquacoat® ECD (ethyl cellulose dispersion). Int J Pharm 2020; 573:118873. [DOI: 10.1016/j.ijpharm.2019.118873] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2019] [Revised: 11/05/2019] [Accepted: 11/12/2019] [Indexed: 10/25/2022]
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14
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Can drug release rate from implants be tailored using poly(urethane) mixtures? Int J Pharm 2019; 557:390-401. [DOI: 10.1016/j.ijpharm.2018.11.067] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2018] [Revised: 11/23/2018] [Accepted: 11/24/2018] [Indexed: 12/14/2022]
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15
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Thapa P, Thapa R, Choi DH, Jeong SH. Effects of pharmaceutical processes on the quality of ethylcellulose coated pellets: Quality by design approach. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.08.002] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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16
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Neuro-fuzzy modeling of ibuprofen-sustained release from tablets based on different cellulose derivatives. Drug Deliv Transl Res 2018; 9:162-177. [DOI: 10.1007/s13346-018-00592-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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17
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Use of cassava starch nanocrystals to make a robust rupturable pulsatile release pellet. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.07.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Affiliation(s)
- Linda A. Felton
- Department of Pharmaceutical Sciences, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM, USA
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19
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Karrout Y, Siepmann F, Benzine Y, Paccou L, Guinet Y, Hedoux A, Siepmann J. When drugs plasticize film coatings: Unusual formulation effects observed with metoprolol and Eudragit RS. Int J Pharm 2018; 539:39-49. [PMID: 29337184 DOI: 10.1016/j.ijpharm.2018.01.014] [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: 11/20/2017] [Revised: 12/31/2017] [Accepted: 01/04/2018] [Indexed: 10/18/2022]
Abstract
Metoprolol tartrate and metoprolol free base loaded pellet starter cores were coated with Eudragit RS, plasticized with 25% triethyl citrate (TEC). The initial drug loading and coating level were varied from 10 to 40 and 0 to 20%, respectively. Drug release was measured in 0.1 N HCl and phosphate buffer pH 7.4. The water uptake and swelling kinetics, mechanical properties and TEC leaching of/from coated pellets and/or thin, free films of identical composition as the film coatings were monitored. The following unusual tendencies were observed: (i) the relative drug release rate from coated pellets increased with increasing initial drug content, and (ii) drug release from pellets was much faster for metoprolol free base compared to metoprolol tartrate, despite its much lower solubility (factor >70). These phenomena could be explained by plasticizing effects of the drug for the polymeric film coatings. In particular: 1) Metoprolol free base is a much more potent plasticizer for Eudragit RS than the tartrate, leading to higher film permeability and overcompensating the pronounced differences in drug solubility. Also, Raman imaging revealed that substantial amounts of the free base migrated into the film coatings, whereas this was not the case for the tartrate. 2) The plasticizing effects of the drug for the film coating overcompensated potential increasing limited solubility effects when increasing the initial drug loading from 10 to 40%. In summary, this study clearly demonstrates how important the plasticization of polymeric controlled release film coatings by drugs can be, leading to unexpected formulation effects.
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Affiliation(s)
- Youness Karrout
- Univ. Lille, Inserm, CHU Lille, U1008, F-59000 Lille, France
| | | | - Youcef Benzine
- Univ. Lille, Inserm, CHU Lille, U1008, F-59000 Lille, France
| | - Laurent Paccou
- Univ. Lille, USTL UMET UMR CNRS 8207, F-59650 Villeneuve d'Ascq, France
| | - Yannick Guinet
- Univ. Lille, USTL UMET UMR CNRS 8207, F-59650 Villeneuve d'Ascq, France
| | - Alain Hedoux
- Univ. Lille, USTL UMET UMR CNRS 8207, F-59650 Villeneuve d'Ascq, France
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20
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Chen K, Chang HHR, Shalviri A, Li J, Lugtu-Pe JA, Kane A, Wu XY. Investigation of a new pH-responsive nanoparticulate pore former for controlled release enteric coating with improved processability and stability. Eur J Pharm Biopharm 2017; 120:116-125. [PMID: 28887098 DOI: 10.1016/j.ejpb.2017.08.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 08/30/2017] [Accepted: 08/31/2017] [Indexed: 11/29/2022]
Affiliation(s)
- Kuan Chen
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, ON, Canada
| | - Hao Han R Chang
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, ON, Canada
| | - Alireza Shalviri
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, ON, Canada
| | - Jason Li
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, ON, Canada
| | - Jamie Anne Lugtu-Pe
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, ON, Canada
| | - Anil Kane
- Patheon Inc., Toronto Region Operations (TRO), Mississauga, ON, Canada
| | - Xiao Yu Wu
- Advanced Pharmaceutics and Drug Delivery Laboratory, Leslie Dan Faculty of Pharmacy, University of Toronto, ON, Canada.
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21
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Designing optimal formulations for hot-melt coating. Int J Pharm 2017; 533:357-363. [DOI: 10.1016/j.ijpharm.2017.08.086] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2017] [Revised: 08/17/2017] [Accepted: 08/17/2017] [Indexed: 11/23/2022]
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22
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Flores FP, Kong F. In Vitro Release Kinetics of Microencapsulated Materials and the Effect of the Food Matrix. Annu Rev Food Sci Technol 2017; 8:237-259. [DOI: 10.1146/annurev-food-030216-025720] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Floirendo P. Flores
- Institute of Food Science and Technology, University of the Philippines Los Baños, Laguna, Philippines 4031
| | - Fanbin Kong
- Department of Food Science and Technology, The University of Georgia, Athens, Georgia 30602
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23
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Islam J, Zaman K, Chakrabarti S, Bora NS, Pathak MP, Mandal S, Junejo JA, Chattopadhyay P. Exploration of ethyl anthranilate-loaded monolithic matrix-type prophylactic polymeric patch. J Food Drug Anal 2016; 25:968-975. [PMID: 28987374 PMCID: PMC9328865 DOI: 10.1016/j.jfda.2016.11.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 10/31/2016] [Accepted: 11/07/2016] [Indexed: 11/25/2022] Open
Abstract
Compromised stability of pharmaceutical formulations loaded with volatiles is a serious problem associated with devices designed to deliver volatile compounds. The present study has been focused to evaluate the stability potential of matrix-type polymeric patches composed of volatile ethyl anthranilate for prophylaxis against vector-borne diseases. Ethyl anthranilate-loaded matrix-type polymeric patches were fabricated by solvent evaporation method on an impermeable backing membrane and attached to temporary release liners. Stability testing of the polymeric patches was performed as per the International Conference on Harmonization (ICH) guidelines for 6 months under accelerated conditions. In addition, the quantification of residual solvents was also performed as per the ICH guidelines. After conducting the stability studies for 6 months, the optimized patches showed the best possible results with respect to uniformity of drug content, physical appearance, and other analytical parameters. Furthermore, the amount of residual solvent was found well below the accepted limit. Thus, the present report outlined the analytical parameters to be evaluated to ensure the stability of a certain devices consisting of volatile compounds.
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Affiliation(s)
- Johirul Islam
- Division of Pharmaceutical Technology, Defence Research Laboratory, Tezpur, Assam, India; Department of Pharmaceutical Sciences, Dibrugarh University, Dibrugarh, Assam, India.
| | - Kamaruz Zaman
- Department of Pharmaceutical Sciences, Dibrugarh University, Dibrugarh, Assam, India
| | - Srijita Chakrabarti
- Division of Pharmaceutical Technology, Defence Research Laboratory, Tezpur, Assam, India
| | - Nilutpal Sharma Bora
- Division of Pharmaceutical Technology, Defence Research Laboratory, Tezpur, Assam, India
| | - Manash Pratim Pathak
- Division of Pharmaceutical Technology, Defence Research Laboratory, Tezpur, Assam, India
| | - Santa Mandal
- Division of Pharmaceutical Technology, Defence Research Laboratory, Tezpur, Assam, India
| | - Julfikar Ali Junejo
- Department of Pharmaceutical Sciences, Dibrugarh University, Dibrugarh, Assam, India
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24
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Yang Q, Ma Y, Zhu J. Sustained drug release from electrostatic powder coated tablets with ultrafine ethylcellulose powders. ADV POWDER TECHNOL 2016. [DOI: 10.1016/j.apt.2016.07.027] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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25
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Klukkert M, Wu JX, Rantanen J, Rehder S, Carstensen JM, Rades T, Leopold CS. Rapid Assessment of Tablet Film Coating Quality by Multispectral UV Imaging. AAPS PharmSciTech 2016; 17:958-67. [PMID: 26729525 DOI: 10.1208/s12249-015-0414-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2015] [Accepted: 09/13/2015] [Indexed: 11/30/2022] Open
Abstract
Chemical imaging techniques are beneficial for control of tablet coating layer quality as they provide spectral and spatial information and allow characterization of various types of coating defects. The purpose of this study was to assess the applicability of multispectral UV imaging for assessment of the coating layer quality of tablets. UV images were used to detect, characterize, and localize coating layer defects such as chipped parts, inhomogeneities, and cracks, as well as to evaluate the coating surface texture. Acetylsalicylic acid tablets were prepared on a rotary tablet press and coated with a polyvinyl alcohol-polyethylene glycol graft copolymer using a pan coater. It was demonstrated that the coating intactness can be assessed accurately and fast by UV imaging. The different types of coating defects could be differentiated and localized based on multivariate image analysis and Soft Independent Modeling by Class Analogy applied to the UV images. Tablets with inhomogeneous texture of the coating could be identified and distinguished from those with a homogeneous surface texture. Consequently, UV imaging was shown to be well-suited for monitoring of the tablet coating layer quality. UV imaging is a promising technique for fast quality control of the tablet coating because of the high data acquisition speed and its nondestructive analytical nature.
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26
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Three-Dimensional Printing of Carbamazepine Sustained-Release Scaffold. J Pharm Sci 2016; 105:2155-63. [DOI: 10.1016/j.xphs.2016.04.031] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 04/25/2016] [Accepted: 04/28/2016] [Indexed: 11/23/2022]
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27
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Preparation and statistical optimization of Losartan Potassium loaded nanoparticles using Box Behnken factorial design: Microreactor precipitation. Chem Eng Res Des 2015. [DOI: 10.1016/j.cherd.2015.07.021] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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28
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Wu H, Lyon RC, Khan MA, Voytilla RJ, Drennen JK. Integration of Near-Infrared Spectroscopy and Mechanistic Modeling for Predicting Film-Coating and Dissolution of Modified Release Tablets. Ind Eng Chem Res 2015. [DOI: 10.1021/ie504680m] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Huiquan Wu
- Division
of Product Quality Research, Office of Testing and Research, Office
of Pharmaceutical Quality, CDER, FDA, HFD-940, White Oak Life Sciences Building
64, 10903 New Hampshire Avenue, Silver Spring, Maryland, 20993-0002, United States
- Process
Assessment Branch II, Division of Process Assessment 1, Office of
Process and Facilities, Office of Pharmaceutical Quality, CDER, FDA, Silver
Spring, Maryland, 20993-0002, United States
| | - Robbe C. Lyon
- Division
of Product Quality Research, Office of Testing and Research, Office
of Pharmaceutical Quality, CDER, FDA, HFD-940, White Oak Life Sciences Building
64, 10903 New Hampshire Avenue, Silver Spring, Maryland, 20993-0002, United States
| | - Mansoor A. Khan
- Division
of Product Quality Research, Office of Testing and Research, Office
of Pharmaceutical Quality, CDER, FDA, HFD-940, White Oak Life Sciences Building
64, 10903 New Hampshire Avenue, Silver Spring, Maryland, 20993-0002, United States
| | - Randall J. Voytilla
- Duquesne
Center of Pharmaceutical Technology, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
| | - James K. Drennen
- Duquesne
Center of Pharmaceutical Technology, Duquesne University, Pittsburgh, Pennsylvania 15282, United States
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29
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Wang Y, Dai J, Chang X, Yang M, Shen R, Shan L, Qian Y, Gao C. Model drug as pore former for controlled release of water-soluble metoprolol succinate from ethylcellulose-coated pellets without lag phase: opportunities and challenges. AAPS PharmSciTech 2015; 16:35-44. [PMID: 25163432 DOI: 10.1208/s12249-014-0197-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2014] [Accepted: 08/07/2014] [Indexed: 11/30/2022] Open
Abstract
The objective of the present study was to evaluate the feasibility of using model drug metoprolol succinate (MS) as a pore former to modify the initial lag phase (i.e., a slow or non-release phase in the first 1-2 h) associated with the drug release from coated pellets. MS-layered cores with high drug-layering efficiency (97% w/w) were first prepared by spraying a highly concentrated drug aqueous solution (60% w/w, 70°C) on non-pareils without using other binders. The presence of MS in ethylcellulose (EC) coating solution significantly improved the coating process by reducing pellets sticking, which often occurs during organic coating. There may be a maximum physical compatibility of MS with EC, and the physical state of the drug in the functional coating layer of EC/MS (80:20) was simultaneously crystalline and non-crystalline (amorphous or solid molecule solution). The lag phase associated with hydroxypropylcellulose (HPC) as a pore former was not observed when MS was used as a pore former. The drug release from EC/MS-coated pellets was pH independent, inversely proportional to the coating levels, and directly related to the pore former levels. The functional coating layer with MS as a pore former was not completely stabilized without curing. Curing at 60°C for 1 day could substantially improve the stability of EC/MS-coated pellets. The physical state of the drug in the free film of EC/MS (85:15) changed partially from amorphous to crystal when cured at 60°C for 1 day, which should be attributed to the incompatibility of the drug with EC.
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30
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Abstract
The production of electrospun fibers of enteric polymer for controlled delivery of drugs represents a simple and low cost procedure with promising advantages relative to the longer therapeutic window provided by cylindrical geometry in association with intrinsic properties of pH-dependent drug carriers. In this work, we have explored the incorporation of additives (block copolymers of poly(ethylene)-b-poly(ethylene oxide)) into matrix of Eudragit L-100 and the effective action of hybrid composites on delivery of nifedipine, providing improvement in the overall process of controlled release of loaded drug.
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31
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How to easily provide zero order release of freely soluble drugs from coated pellets. Int J Pharm 2015; 478:31-38. [DOI: 10.1016/j.ijpharm.2014.10.071] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2014] [Revised: 10/28/2014] [Accepted: 10/31/2014] [Indexed: 11/21/2022]
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32
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Tan L, Jiang T, Yang X, Li W, Pan L, Yu M. Core-shell biopolymer microspheres for sustained drug release. J Appl Polym Sci 2014. [DOI: 10.1002/app.41782] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Liqing Tan
- Department of Medicinal Chemistry; School of Pharmacy, Chongqing Medical University; Chongqing 400016 People's Republic of China
- Department of Pharmacy; The Third Affiliated Hospital of Third Military Medical University; Chongqing 400042 People's Republic of China
| | - Tao Jiang
- Department of Medicinal Chemistry; School of Pharmacy, Chongqing Medical University; Chongqing 400016 People's Republic of China
- Department of Pharmacy; Xinqiao Hospital of Third Military Medical University; Chongqing 400037 People's Republic of China
| | - Xiaolan Yang
- Key Laboratory of Clinical Laboratory Diagnostics of the Education Ministry; College of Laboratory Medicine; Chongqing Medical University; Chongqing 400016 People's Republic of China
| | - Wei Li
- Department of Medicinal Chemistry; School of Pharmacy, Chongqing Medical University; Chongqing 400016 People's Republic of China
| | - Lijun Pan
- Pharmaceutical Teaching Laboratory; Chongqing Medical University; Chongqing 400016 People's Republic of China
| | - Mingan Yu
- Department of Medicinal Chemistry; School of Pharmacy, Chongqing Medical University; Chongqing 400016 People's Republic of China
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33
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Ng XW, Huang Y, Liu KL, Lim SG, Chen HH, Burnett JC, Freddy Boey YC, Venkatraman SS. In vitro evaluation of cenderitide-eluting stent I -an antirestenosis and proendothelization approach. J Pharm Sci 2014; 103:3631-3640. [PMID: 25223419 DOI: 10.1002/jps.24165] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 08/19/2014] [Accepted: 08/21/2014] [Indexed: 12/16/2022]
Abstract
Despite the success that drug-eluting stents (DESs) have achieved for minimizing in-stent restenosis (ISR), the antirestenotic agents used in DES have been implicated in delayed endothelial healing and impairment of endothelial functions. Cenderitide (CD-NP) is a novel antiproliferation chimeric peptide of semiendothelial origin; thus, this paper aims to demonstrate the selectivity aspect of this new peptide via in vitro evaluation on key players in ISR-smooth muscle cells (SMCs) and endothelial cells. The microbicinchoninic acid protein assay was used to investigate the CD-NP release from films and stents. Cenderitide-containing films blended with poly(ethylene glycol) and its copolymer exhibited higher release kinetics compared with neat poly(ε-caprolactone) (PCL) formulation. Cenderitide-eluting stents (CES) was produced by coating bare metallic stents with CD-NP entrapped PCL using an ultrasonic spray coater. The investigation of CD-NP on in vitro cells revealed that CD-NP inhibits human coronary smooth muscle cells (HCaSMCs) proliferation but exhibits no effects on human umbilical vein endothelial cells (HUVECs) proliferation. Moreover, CD-NP released up to 7 days displayed inhibitory effects on SMCs proliferation. The CES produced in this work shows that the released CD-NP inhibits HCaSMCs proliferation but did not hamper HUVECs proliferation in vitro, suggesting that it has potential to reduce ISR without retarding the endothelialization healing in vivo.
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Affiliation(s)
- Xu Wen Ng
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Yingying Huang
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Kerh Lin Liu
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Soon Ghim Lim
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Horng Haur Chen
- Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minnesota 55905
| | - John C Burnett
- Division of Cardiovascular Diseases and Internal Medicine, Mayo Clinic, Rochester, Minnesota 55905
| | - Yin Chiang Freddy Boey
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
| | - Subbu S Venkatraman
- School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore.
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34
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Wang Y, Yang J, Qian Y, Yang M, Qiu Y, Huang W, Shan L, Gao C. Novel ethylcellulose-coated pellets for controlled release of metoprolol succinate without lag phase: characterization, optimization andin vivoevaluation. Drug Dev Ind Pharm 2014; 41:1120-9. [DOI: 10.3109/03639045.2014.931969] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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35
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Yang M, Xie S, Li Q, Wang Y, Chang X, Shan L, Sun L, Huang X, Gao C. Effects of polyvinylpyrrolidone both as a binder and pore-former on the release of sparingly water-soluble topiramate from ethylcellulose coated pellets. Int J Pharm 2014; 465:187-96. [DOI: 10.1016/j.ijpharm.2014.02.021] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2013] [Revised: 01/27/2014] [Accepted: 02/12/2014] [Indexed: 11/27/2022]
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36
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Jelvehgari M, Zakeri-Milani P, Khonsari F. Comparative study of in vitro release and mucoadhesivity of gastric compacts composed of multiple unit system/bilayered discs using direct compression of metformin hydrochloride. BIOIMPACTS : BI 2014; 4:29-38. [PMID: 24790896 PMCID: PMC4005280 DOI: 10.5681/bi.2014.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 10/27/2013] [Accepted: 11/07/2013] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Metformin is an oral anti-diabetic drug in the biguanide class. The goal of this study was to develop gastric-retentive MH discs in order to prolong the retention of drug in gastric mucosa. METHODS Two groups of metformin hydrochloride (MH) mucoadhesive gastroretentive discs were prepared: (a) bilayered discs prepared by direct compression of powders containing polymers as Carbopol 934P (CP, mucoadhesive polymer) and ethylcellulose (EC, rotardant polymer), (b) multiple unit system (microparticle) discs prepared by the emulsification, solvent evaporation, and compression technique from microparticles using polymers CP and EC. Gastric-mucoadhesive compacts were evaluated by investigating their release pattern, swelling capacity, mucoadhesion property, surface pH, and in vitro gastro-retentive time. Discs formulation was subjected to disintegration and dissolution tests by placing in 0.1 M hydrochloric acid for 8 h. RESULTS The production yield showed F2 microparticles of 98.80%, mean particle size of 933.25 µm and loading efficiency of 98.44%. The results showed that prepared microparticle discs had slower release than bilayered discs (p>0.05). The bilayered discs exhibited very good percentage of mucoadhesion. The results also showed a significant higher retention of mucoadhesive bilayered discs in upper gastrointestinal tract (F´1, 1:2 ratio of CP:EC). Histopathological studies revealed no gastric mucosal damage. CONCLUSION Mucoadhesive multiple unit system/bilayered discs interact with mucus of gastrointestinal tract and are considered to be localized or trapped at the adhesive site by retaining a dosage form at the site of action as well as improving in the intimacy of contact with underlying absorptive membrane to achieve a better therapeutic performance of anti-diabetic drug.
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Affiliation(s)
- Mitra Jelvehgari
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran ; Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Parvin Zakeri-Milani
- Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran ; Liver and Gastrointestinal Diseases Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Fatemeh Khonsari
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
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37
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Asman G, Akçay E. Effect of Membrane Preparation Methods on the Release of Theophylline through CA Membranes atIn-VitroConditions. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2014. [DOI: 10.1080/10601325.2014.882698] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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38
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Kan SL, Li J, Liu JP, Zhao Y. Preparation andIVIVCevaluation of salvianolic acid B micro-porous osmotic pump pellets. Drug Dev Ind Pharm 2014; 41:476-81. [DOI: 10.3109/03639045.2013.879722] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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39
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Haaser M, Karrout Y, Velghe C, Cuppok Y, Gordon K, Pepper M, Siepmann J, Rades T, Taday P, Strachan C. Application of terahertz pulsed imaging to analyse film coating characteristics of sustained-release coated pellets. Int J Pharm 2013; 457:521-6. [DOI: 10.1016/j.ijpharm.2013.05.039] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2013] [Revised: 04/29/2013] [Accepted: 05/04/2013] [Indexed: 11/28/2022]
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40
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Gendre C, Genty M, Fayard B, Tfayli A, Boiret M, Lecoq O, Baron M, Chaminade P, Péan JM. Comparative static curing versus dynamic curing on tablet coating structures. Int J Pharm 2013; 453:448-53. [DOI: 10.1016/j.ijpharm.2013.06.008] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2013] [Revised: 05/29/2013] [Accepted: 06/01/2013] [Indexed: 11/17/2022]
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41
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Rosiaux Y, Velghe C, Muschert S, Chokshi R, Leclercq B, Siepmann F, Siepmann J. Ethanol-resistant ethylcellulose/guar gum coatings--importance of formulation parameters. Eur J Pharm Biopharm 2013; 85:1250-8. [PMID: 23891769 DOI: 10.1016/j.ejpb.2013.07.014] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2013] [Revised: 07/12/2013] [Accepted: 07/17/2013] [Indexed: 10/26/2022]
Abstract
Recently, ethylcellulose/guar gum blends have been reported to provide ethanol-resistant drug release kinetics from coated dosage forms. This is because the ethanol insoluble guar gum effectively avoids undesired ethylcellulose dissolution in ethanol-rich bulk fluids. However, so far the importance of crucial formulation parameters, including the minimum amount of guar gum to be incorporated and the minimum required guar gum viscosity, remains unclear. The aim of this study was to identify the most important film coating properties, determining whether or not the resulting drug release kinetics is ethanol-resistant. Theophylline matrix cores were coated in a fluid bed with blends of the aqueous ethylcellulose dispersion "Aquacoat®ECD30" and guar gum. The polymer blend ratio, guar gum viscosity, and degree of dilution of the final coating dispersion were varied. Importantly, it was found that more than 5% guar gum (referred to the total polymer content) must be incorporated in the film coating and that the apparent viscosity of a 1% aqueous guar gum solution must be greater than 150 cP to provide ethanol-resistance. In contrast, the investigated degree of coating dispersion dilution was not found to be decisive for the ethanol sensitivity. Furthermore, all investigated formulations were long term stable, even upon open storage under stress conditions for 6 months.
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Affiliation(s)
- Y Rosiaux
- Univ. Lille Nord de France, College of Pharmacy, Lille, France; INSERM U 1008, Controlled Drug Delivery Systems and Biomaterials, Lille, France
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42
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Rosiaux Y, Muschert S, Chokshi R, Leclercq B, Siepmann F, Siepmann J. Ethanol-resistant polymeric film coatings for controlled drug delivery. J Control Release 2013; 169:1-9. [PMID: 23570984 DOI: 10.1016/j.jconrel.2013.04.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 03/31/2013] [Accepted: 04/01/2013] [Indexed: 11/17/2022]
Abstract
The sensitivity of controlled release dosage forms to the presence of ethanol in the gastro intestinal tract is critical, if the incorporated drug is potent and exhibits severe side effects. This is for instance the case for most opioid drugs. The co-ingestion of alcoholic beverages can lead to dose dumping and potentially fatal consequences. For these reasons the marketing of hydromorphone HCl extended release capsules (Palladone) was suspended. The aim of this study was to develop a novel type of controlled release film coatings, which are ethanol-resistant: even the presence of high ethanol concentrations in the surrounding bulk fluid (e.g., up to 40%) should not affect the resulting drug release kinetics. Interestingly, blends of ethylcellulose and medium or high viscosity guar gums provide such ethanol resistance. Theophylline release from pellets coated with the aqueous ethylcellulose dispersion Aquacoat® ECD 30 containing 10 or 15% medium and high viscosity guar gum was virtually unaffected by the addition of 40% ethanol to the release medium. Furthermore, drug release was shown to be long term stable from this type of dosage forms under ambient and stress conditions (without packaging material), upon appropriate curing.
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Affiliation(s)
- Y Rosiaux
- College of Pharmacy, Univ. Lille Nord de France, 3 Rue du Prof. Laguesse, 59006 Lille, France
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Bikiaris D, Koutri I, Alexiadis D, Damtsios A, Karagiannis G. Real time and non-destructive analysis of tablet coating thickness using acoustic microscopy and infrared diffuse reflectance spectroscopy. Int J Pharm 2012; 438:33-44. [DOI: 10.1016/j.ijpharm.2012.08.056] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2012] [Revised: 08/29/2012] [Accepted: 08/29/2012] [Indexed: 11/25/2022]
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Vakili H, Genina N, Ehlers H, Bobacka J, Sandler N. Using ion-selective electrodes to study the drug release from porous cellulose matrices. Pharmaceutics 2012; 4:366-76. [PMID: 24300297 PMCID: PMC3834921 DOI: 10.3390/pharmaceutics4030366] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2012] [Revised: 07/13/2012] [Accepted: 07/27/2012] [Indexed: 11/17/2022] Open
Abstract
Polyvinyl chloride (PVC)-based solid-contact ion-selective electrodes (SC-ISEs), responding to propranolol hydrochloride (Pr+) and lidocaine hydrochloride (Ld+) cations as the model drugs with potassium tetrakis(4-chlorophenyl) borate (KTpClPB) as the ion exchanger, were studied. Different drug-polymer solutions were prepared with the model drugs, using different blend ratios of ethylcellulose (EC) and hydroxypropyl cellulose (HPC). Two different solid dosage forms were used. Polymer films were produced by solvent casting method and drug containing porous cellulose samples were prepared by depositing the drug-polymer solutions onto filter paper substrates. The quality of the electrodes and the release profile of Pr+ and Ld+ were investigated with the potentiometric method. The results were compared to UV spectrophotometry. The electrodes were found to be sensitive, precise and functional with a Nernstian behavior over the range of 1.0 × 10-3-3.1 × 10-6 M (9.2 × 10-4-3.0 × 10-1 mg/mL) and 1 × 10-3-2 × 10-6 M (5.4 × 10-4-2.7 × 10-1 mg/mL) at 25 °C for Pr+ and Ld+ sensitive electrodes, respectively. The dynamic response time for the electrodes was less than 10 s. The Pr+ release from porous filter paper was always higher than its equivalent film formulation. Also, lidocaine had higher and faster release from the samples with higher drug concentration. The comparison of the two analytical methods showed near identical results. The ISEs provided a powerful and flexible alternative to UV method in determination of drug release from porous cellulose substrates in a small scale dissolution testing.
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Affiliation(s)
- Hossein Vakili
- Pharmaceutical Sciences Laboratory, Department of Biosciences, Abo Akademi University Artillerigatan 6 A, 20520, Turku, Finland; (N.G.); (H.E.); (N.S.)
| | - Natalja Genina
- Pharmaceutical Sciences Laboratory, Department of Biosciences, Abo Akademi University Artillerigatan 6 A, 20520, Turku, Finland; (N.G.); (H.E.); (N.S.)
| | - Henrik Ehlers
- Pharmaceutical Sciences Laboratory, Department of Biosciences, Abo Akademi University Artillerigatan 6 A, 20520, Turku, Finland; (N.G.); (H.E.); (N.S.)
| | - Johan Bobacka
- Analytical Chemistry Laboratory, Department of Chemical Engineering, Biskopsgatan 8, 20500, Turku, Finland;
| | - Niklas Sandler
- Pharmaceutical Sciences Laboratory, Department of Biosciences, Abo Akademi University Artillerigatan 6 A, 20520, Turku, Finland; (N.G.); (H.E.); (N.S.)
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Liu P, Li J, Liu J, Yang J, Fan Y. Release Behavior of Tanshinone IIA Sustained-Release Pellets Based on Crack Formation Theory. J Pharm Sci 2012; 101:2811-20. [DOI: 10.1002/jps.23199] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 03/29/2012] [Accepted: 04/27/2012] [Indexed: 11/09/2022]
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Abstract
A medication's pharmacokinetic properties can be as important as its efficacy in determining how successful a treatment is. Formulation plays a critical role in absorption, distribution, and elimination of a drug, which in turn can influence the clinical profile of a medication, including onset and duration of action, consistency of plasma levels, ability to cross the blood-brain barrier, and other factors. Advances in drug delivery technology mean that formulation is now an integral component in the development of a drug. Likewise, formulation is one of the factors that may influence selection of a medication to suit the needs of a particular patient. This article briefly reviews the technologies commonly applied in the development of psychotropic medications, with emphasis on the various oral modified-release formulations, and discusses how formulation can be used to optimize the efficacy and tolerability of psychotropic drugs.
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Comprehensive study of dynamic curing effect on tablet coating structure. Eur J Pharm Biopharm 2012; 81:657-65. [PMID: 22561957 DOI: 10.1016/j.ejpb.2012.04.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2011] [Revised: 04/03/2012] [Accepted: 04/16/2012] [Indexed: 11/23/2022]
Abstract
The dissolution method is still widely used to determine curing end-points to ensure long-term stability of film coatings. Nevertheless, the process of curing has not yet been fully investigated. For the first time, joint techniques were used to elucidate the mechanisms of dynamic curing over time from ethylcellulose (Aquacoat)-based coated tablets. X-ray micro-computed tomography (XμCT), Near Infrared (NIR), and Raman spectroscopies as well as X-ray microdiffraction were employed as non-destructive techniques to perform direct measurements on tablets. All techniques indicated that after a dynamic curing period of 4h, reproducible drug release can be achieved and no changes in the microstructure of the coating were any longer detected. XμCT analysis highlighted the reduced internal porosity, while both NIR and Raman measurements showed that spectral information remained unaltered after further curing. X-ray microdiffraction revealed densification of the coating layer with a decrease in the overall coating thickness of about 10 μm as a result of curing. In addition, coating heterogeneity attributed to cetyl alcohol was observed from microscopic images and Raman analysis. This observation was confirmed by X-ray microdiffraction that showed that crystalline cetyl alcohol melted and spread over the coating surface with curing. Prior to curing, X-ray microdiffraction also revealed the existence of two coating zones differing in crystalline cetyl alcohol and sodium lauryl sulfate concentrations which could be explained by migration of these constituents within the coating layer. Therefore, the use of non-destructive techniques allowed new insights into tablet coating structures and provided precise determination of the curing end-point compared to traditional dissolution testing. This thorough study may open up new possibilities for process and formulation control.
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Real-time predictions of drug release and end point detection of a coating operation by in-line near infrared measurements. Int J Pharm 2011; 421:237-43. [DOI: 10.1016/j.ijpharm.2011.09.036] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2011] [Revised: 09/17/2011] [Accepted: 09/24/2011] [Indexed: 11/19/2022]
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Kaunisto E, Marucci M, Borgquist P, Axelsson A. Mechanistic modelling of drug release from polymer-coated and swelling and dissolving polymer matrix systems. Int J Pharm 2011; 418:54-77. [DOI: 10.1016/j.ijpharm.2011.01.021] [Citation(s) in RCA: 80] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2010] [Revised: 01/05/2011] [Accepted: 01/12/2011] [Indexed: 10/18/2022]
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50
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Dynamic and static curing of ethylcellulose:PVA–PEG graft copolymer film coatings. Eur J Pharm Biopharm 2011; 78:455-61. [DOI: 10.1016/j.ejpb.2011.02.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2010] [Revised: 02/11/2011] [Accepted: 02/15/2011] [Indexed: 11/23/2022]
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