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Grilc NK, Zidar A, Kocbek P, Rijavec T, Colja T, Lapanje A, Jeras M, Gobec M, Mlinarič-Raščan I, Gašperlin M, Kristl J, Zupančič Š. Nanofibers with genotyped Bacillus strains exhibiting antibacterial and immunomodulatory activity. J Control Release 2023; 355:371-384. [PMID: 36738969 DOI: 10.1016/j.jconrel.2023.01.082] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 12/20/2022] [Accepted: 01/30/2023] [Indexed: 02/06/2023]
Abstract
Biofilm-associated diseases such as periodontitis are widespread and challenging to treat which calls for new strategies for their effective management. Probiotics represent a promising approach for targeted treatment of dysbiosis in biofilm and modulation of host immune response. In this interdisciplinary study, nanofibers with two autochthonous Bacillus strains 27.3.Z and 25.2.M were developed. The strains were isolated from the oral microbiota of healthy individuals, and their genomes were sequenced and screened for genes associated with antimicrobial and immunomodulatory activities, virulence factors, and transferability of resistance to antibiotics. Spores of two Bacillus strains were incorporated individually or in combination into hydrophilic poly(ethylene oxide) (PEO) and composite PEO/alginate nanofibers. The nanofiber mats were characterised by a high loading of viable spores (> 7 log CFU/mg) and they maintained viability during electrospinning and 6 months of storage at room temperature. Spores were rapidly released from PEO nanofibers, while presence of alginate in the nanofibers prolonged their release. All formulations exhibited swelling, followed by transformation of the nanofiber mat into a hydrogel and polymer erosion mediating spore release kinetics. The investigated Bacillus strains released metabolites, which were not cytotoxic to peripheral blood mononuclear cells (PBMCs) in vitro. Moreover, their metabolites exhibited antibacterial activity against two periodontopathogens, an antiproliferative effect on PBMCs, and inhibition of PBMC expression of proinflammatory cytokines. In summary, the developed nanofiber-based delivery system represents a promising therapeutic approach to combat biofilm-associated disease on two fronts, namely via modulation of the local microbiota with probiotic bacteria and host immune response with their metabolites.
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Affiliation(s)
- Nina Katarina Grilc
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Anže Zidar
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Petra Kocbek
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Tomaž Rijavec
- Department of Environmental Sciences, Institut "Jožef Stefan", Jamova cesta 39, 1000 Ljubljana, Slovenia
| | - Teja Colja
- Department of Environmental Sciences, Institut "Jožef Stefan", Jamova cesta 39, 1000 Ljubljana, Slovenia
| | - Aleš Lapanje
- Department of Environmental Sciences, Institut "Jožef Stefan", Jamova cesta 39, 1000 Ljubljana, Slovenia
| | - Matjaž Jeras
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Martina Gobec
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Irena Mlinarič-Raščan
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Mirjana Gašperlin
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia
| | - Julijana Kristl
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia.
| | - Špela Zupančič
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, 1000 Ljubljana, Slovenia.
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Tsuji T, Ono T, Taguchi H, Leong KH, Hayashi Y, Kumada S, Okada K, Onuki Y. Continuous Monitoring of the Hydration Behavior of Hydrophilic Matrix Tablets Using Time-Domain NMR. Chem Pharm Bull (Tokyo) 2023; 71:576-583. [PMID: 37394606 DOI: 10.1248/cpb.c23-00214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/04/2023]
Abstract
Time-domain NMR (TD-NMR) was used for continuous monitoring of the hydration behavior of hydrophilic matrix tablets. The model matrix tablets comprised high molecular weight polyethylene oxide (PEO), hydroxypropyl methylcellulose (HPMC), and polyethylene glycol (PEG). The model tablets were immersed in water. Their T2 relaxation curves were acquired by TD-NMR with solid-echo sequence. A curve-fitting analysis was conducted on the acquired T2 relaxation curves to identify the NMR signals corresponding to the nongelated core remaining in the samples. The amount of nongelated core was estimated from the NMR signal intensity. The estimated values were consistent with the experiment measurement values. Next, the model tablets immersed in water were monitored continuously using TD-NMR. The difference in hydration behaviors of the HPMC and PEO matrix tablets was then characterized fully. The nongelated core of the HPMC matrix tablets disappeared more slowly than that of the PEO matrix tablets. The behavior of HPMC was significantly affected by the PEG content in the tablets. It is suggested that the TD-NMR method has potential to be utilized to evaluate the gel layer properties, upon replacement of the immersion medium: purified (nondeuterated) water is replaced with heavy (deuterated) water. Finally, drug-containing matrix tablets were tested. Diltiazem hydrochloride (a highly water-soluble drug) was employed for this experiment. Reasonable in vitro drug dissolution profiles, which were in accordance with the results from TD-NMR experiments, were observed. We concluded that TD-NMR is a powerful tool to evaluate the hydration properties of hydrophilic matrix tablets.
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Affiliation(s)
- Takahiro Tsuji
- Formulation Development Department, Development & Planning Division, Nichi-Iko Pharmaceutical Co., Ltd
| | - Takashi Ono
- Formulation Development Department, Development & Planning Division, Nichi-Iko Pharmaceutical Co., Ltd
- Laboratory of Pharmaceutical Technology, School of Pharmacy and Pharmaceutical Sciences, University of Toyama
| | - Hiromu Taguchi
- Laboratory of Pharmaceutical Technology, School of Pharmacy and Pharmaceutical Sciences, University of Toyama
| | - Kok Hoong Leong
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Malaya
| | - Yoshihiro Hayashi
- Formulation Development Department, Development & Planning Division, Nichi-Iko Pharmaceutical Co., Ltd
| | - Shungo Kumada
- Formulation Development Department, Development & Planning Division, Nichi-Iko Pharmaceutical Co., Ltd
| | - Kotaro Okada
- Laboratory of Pharmaceutical Technology, School of Pharmacy and Pharmaceutical Sciences, University of Toyama
| | - Yoshinori Onuki
- Laboratory of Pharmaceutical Technology, School of Pharmacy and Pharmaceutical Sciences, University of Toyama
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Bezerra GSN, Colbert DM, O’Donnell C, Cao Z, Geever J, Geever L. Compatibility Study Between Fenbendazole and Poly(Ethylene Oxide) with Application in Solid Dispersion Formulations Using Hot-Melt Extrusion. J Pharm Innov 2022. [DOI: 10.1007/s12247-022-09644-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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4
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Preparation, Properties and Water Dissolution Behavior of Polyethylene Oxide Mats Prepared by Solution Blow Spinning. Polymers (Basel) 2022; 14:polym14071299. [PMID: 35406174 PMCID: PMC9003185 DOI: 10.3390/polym14071299] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/21/2022] [Accepted: 03/22/2022] [Indexed: 02/04/2023] Open
Abstract
The relationship between processing conditions, structure and morphology are key issues to understanding the final properties of materials. For instance, in the case of polymers to be used as scaffolds in tissue engineering, wound dressings and membranes, morphology tuning is essential to control mechanical and wettability behaviors. In this work, the relationship between the processing conditions of the solution blow spinning process (SBS) used to prepare nonwoven mats of polyethylene oxide (PEO), and the structure and morphology of the resulting materials are studied systematically, to account for the thermal and mechanical behaviors and dissolution in water. After finding the optimal SBS processing conditions (air pressure, feed rate, working distance and polymer concentration), the effect of the solvent composition has been considered. The structure and morphology of the blow spun fibers are studied as well as their thermal, mechanical behaviors and dissolution in water. We demonstrate that the morphology of the fibers (size and porosity) changes with the solvent composition, which is reflected in different thermal and mechanical responses and in the dissolution rates of the materials in water.
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Rezaei L, Meruva S, Donovan MD. Effect of Manufacturing Process on the Retention of Abuse-Deterrent Properties of PEO-Matrix Tablets. AAPS PharmSciTech 2021; 23:38. [PMID: 34961912 DOI: 10.1208/s12249-021-02169-6] [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: 09/08/2021] [Accepted: 10/20/2021] [Indexed: 11/30/2022] Open
Abstract
Polyethylene oxide (PEO) is a widely used polymer in the development of abuse-deterrent oral formulations. Different manufacturing processes including direct compression (DC) followed by sintering, wet granulation (WG) followed by compression and sintering, and hot melt extrusion (HME) can be used to manufacture abuse-deterrent oral drug products. Three different manufacturing processes (DC, WG, HME) were evaluated to test the retention of their abuse-deterrent features following attempts to grind the tablets or extrudates. In vitro drug release studies were conducted on 10% and 32% drug-loaded tablets/extrudates prepared using these manufacturing methods, and the release profiles from all formulations showed good extended-release properties. Drug content analysis on the granules obtained from tablets prepared by direct compression showed non-uniform drug distribution where an unexpectedly high drug content was present in the smallest size (< 250 µm) granules, sizes which are likely to be inhaled by abusers. Granules from tablets prepared by wet granulation showed improved drug distribution across all granule sizes formed after grinding. Drug content testing on the granules obtained from extrudates prepared using hot melt extrusion showed excellent drug content uniformity along with sufficient strength to resist grinding into smaller particles. The retention of the abuse-deterrent properties of a dosage form following attempts to extract or abuse the drug is an important product characteristic, and the product design, formulation components, and manufacturing processes can all play critical roles in the retention of the desired abuse-deterrent properties.
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Jordan N, Roškar R, Grabnar I. Design of experiments and multivariate analysis approach to study dissolution stability of a modified-release drug product to support lean design strategies. Drug Dev Ind Pharm 2021; 47:1481-1488. [PMID: 34726551 DOI: 10.1080/03639045.2021.2001491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
OBJECTIVE The purpose of this paper is to present the use of Design of Experiments and multivariate analysis for evaluation of a modified-release drug product stability to support post-approval lean stability approaches. The focus of the paper was to investigate potential root-causes for acceleration of dissolution upon stability. METHODS For statistical evaluation of stability data, multiple linear regression statistics was used. The design space of the stability study was modeled using MODDE 12.1 software. For experimental set-up, parameters such as Temperature, Time, Packaging, Batch, and Active Pharmaceutical Ingredient supplier were selected. RESULTS With multiple linear regression modeling of the all generated stability data until six months, we were able to identify or confirm the Stability-related quality attributes and Shelf life limiting attributes. From the multiple linear regression correlation coefficients, we have evaluated that decrease of an antioxidant upon stability could cause potential shift in dissolution. However, main factors for accelerated dissolution can be attributed to other material and process variables. In the last part of the study, we have shown the usefulness of these methodologies for supporting lean stability approaches. With enhanced drug product knowledge, we designed two reduced long-term stability studies and showed that with 'One-half' reduced design, we would still be able to confirm 24-month shelf life. CONCLUSIONS Implementing Quality by design approaches on stability studies could reduce the need for excessive analytical testing, help to evaluate meaningfulness of the data and set a risk-based stability testing strategy.
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Affiliation(s)
- Nika Jordan
- Lek Pharmaceuticals d.d., Ljubljana, Slovenia.,University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
| | - Robert Roškar
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
| | - Iztok Grabnar
- University of Ljubljana, Faculty of Pharmacy, Ljubljana, Slovenia
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7
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Polyethylene oxide matrix tablet swelling evolution: The impact of molecular mass and tablet composition. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2021; 71:215-243. [PMID: 33151172 DOI: 10.2478/acph-2021-0018] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/06/2020] [Indexed: 01/19/2023]
Abstract
This article describes the designing of matrix tablets composed of polyethylene oxides (PEOs) with relative molecular masses of 1 × 106, 2 × 106, and 4 × 106. Percolation thresholds were determined for all of the selected PEO formulations (18, 16, and 12 %, m/m), taking into consideration excipients and tablet surface area which significantly increased the percolation threshold. Moreover, the robustness of the gel layer in PEO matrix tablets was evaluated by magnetic resonance imaging under various mechanical stresses (no flow, 12 mL min-1, and 64 mL-1 of medium flow). Correlations between the percolation threshold and gel thickness (R2 = 0.86), gel thickness and the erosion coefficient (R2 = 0.96) was detected. Furthermore, small-angle X-ray scattering of the selected PEOs detected differences in polymer molecular complexity at the nanoscale. Finally, the ratio of the heat of coalescence to the heat of fusion has confirmed the PEO molecular mass-dependent percolation threshold.
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Cantin O, Siepmann F, Willart J, Danede F, Siepmann J, Karrout Y. PEO hot melt extrudates for controlled drug delivery: Importance of the type of drug and loading. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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9
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Abstract
In this work, the wetting and evaporation behaviour of non-polar solvent droplets on thin soluble coatings is investigated experimentally. The wetting process on spin-coated polymer layers by toluene is captured using shadowgraphy. Initial spontaneous dynamic wetting as well as later stages of wetting are recorded and evaluated. Furthermore, structures obtained by wetting and subsequent evaporation of solvents on polymer coatings are studied by confocal microscopy. The solubility of the substrate has been varied by using polymers with different molecular masses. We observe that initial spreading dynamics does not depend on the molar mass in the studied range. However, we find a strong influence of the molar mass on the late stage wetting dynamics and on the surface structure after solvent evaporation.
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Vanza JD, Patel RB, Dave RR, Patel MR. Polyethylene oxide and its controlled release properties in hydrophilic matrix tablets for oral administration. Pharm Dev Technol 2020; 25:1169-1187. [PMID: 32772604 DOI: 10.1080/10837450.2020.1808015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Polymers are excipients that modify the rate of drug release from pharmaceutical dosage forms. Hydrophilic polymer-based controlled drug delivery system is more advantageous as compared to the conventional delivery system as it reduces the dosing frequency, improves therapeutic efficacy, reduces side-effects, and probably enhances patient compliance. Polyethylene oxide (PEO), a nonionic hydrophilic polymer, is one of the most widely used polymers for extending the drug release. This review mainly focuses on the PEO marketed by, but not limited to, The Dow Chemical Company under the trade name of POLYOXTM. It is commercially available polyethylene oxide polymer existing in various molecular weight and viscosity grades depending upon the application. This study essentially discusses chemistry, physicochemical properties, and the impact of formulation and processing variables on the release of drug from hydrophilic PEO matrix tablets. Moreover, it also summarizes the stability, patents, and regulatory perspectives of POLYOX that can further influence the future developments of controlled release dosage forms.
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Affiliation(s)
- Jigar D Vanza
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology (CHARUSAT), Changa, India
| | - Rashmin B Patel
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology (CHARUSAT), Changa, India
| | - Richa R Dave
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology (CHARUSAT), Changa, India
| | - Mrunali R Patel
- Ramanbhai Patel College of Pharmacy, Charotar University of Science and Technology (CHARUSAT), Changa, India
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11
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Draksler P, Janković B, Abramović Z, Lavrič Z, Meden A. Assessment of critical material attributes of polyethylene oxide for formulation of prolonged-release tablets. Drug Dev Ind Pharm 2019; 45:1949-1958. [PMID: 31752546 DOI: 10.1080/03639045.2019.1689991] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Physicochemical evaluation of polyethylene oxide (PEO) polymers with various molecular weights was performed at molecular (polymeric dispersion) and bulk level (powders, polymeric films, and tablets) with the aim of specifying polymer critical material attributes with the main contribution to drug release from prolonged-release tablets (PRTs). For this purpose, grades of PEO with low, medium, and high viscosity were used for formulating PRTs with a good soluble drug substance (dose solubility volume 15 ml). The results revealed a good correlation (r2=0.88) between in vivo data (pharmacokinetic parameters: Cmax and AUC) and the elastic property of PEO films determined with the nanoindentation method, demonstrating that film level can also be used for the in vivo prediction of drug dissolution. The study confirmed that polymer molecular weight and its viscosity are the most important critical material attributes affecting drug dissolution (in vitro) and in vivo bioavailability (e.g. Cmax and AUC). Our research revealed that the nanoindentation technique can distinguish well between various types of polymers, classifying PEO as the most ductile and polyvinyl alcohol as the most brittle. Finally, our study provides an approach for the determination of exact physical attributes of PEO as a critical material attribute from clinically relevant data, and it therefore fulfills the basic principles of product development by Quality by Design.
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Affiliation(s)
- Petra Draksler
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia.,Sandoz Development Center, Ljubljana, Slovenia
| | - Biljana Janković
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia.,Sandoz Development Center, Ljubljana, Slovenia
| | | | - Zoran Lavrič
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Ljubljana, Ljubljana, Slovenia
| | - Anton Meden
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Ljubljana, Slovenia
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12
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Wen H, Li X, Li Y, Wang H, Wang Y, Wang T, Pan W, Yang X. In vitro and in vivo evaluation of controlled-release matrix tablets of highly water-soluble drug applying different mw polyethylene oxides (PEO) as retardants. Drug Dev Ind Pharm 2017; 44:544-552. [DOI: 10.1080/03639045.2017.1405429] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Affiliation(s)
- Haoyang Wen
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
| | - Xue Li
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
| | - Yuenan Li
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
| | - Haiying Wang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
| | - Yanyan Wang
- Lianyungang TCM Branch of Jiangsu Union Technical Institute, Lianyungang, Jiangsu, China
| | - Tuanjie Wang
- Jiangsu Kanion Parmaceutical CO. LTD, Lianyungang, Jiangsu, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, Jiangsu, China
| | - Weisan Pan
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
| | - Xinggang Yang
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Shenyang Pharmaceutical University, Shenyang, China
- State Key Laboratory of New-tech for Chinese Medicine Pharmaceutical Process, Lianyungang, Jiangsu, China
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13
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Ghori MU, Grover LM, Asare-Addo K, Smith AM, Conway BR. Evaluating the swelling, erosion, and compaction properties of cellulose ethers. Pharm Dev Technol 2017; 23:183-197. [PMID: 28985687 DOI: 10.1080/10837450.2017.1389958] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Swelling, erosion, deformation, and consolidation properties can affect the performance of cellulose ethers, the most commonly used matrix former in hydrophilic sustained tablet formulations. The present study was designed to comparatively evaluate the swelling, erosion, compression, compaction, and relaxation properties of the cellulose ethers in a comprehensive study using standardised conditions. The interrelationship between various compressional models and the inherent deformation and consolidation properties of the polymers on the derived swelling and erosion parameters are consolidated. The impact of swelling (Kw) on erosion rates (KE) and the inter-relationship between Heckel and Kawakita plasticity constants was also investigated. It is evident from the findings that the increases in both substitution and polymer chain length led to higher Kw, but a lower KE; this was also true for all particle size fractions regardless of polymer grade. Smaller particle size and high substitution levels tend to increase the relative density of the matrix but reduce porosity, yield pressure (Py), Kawakita plasticity parameter (b-1) and elastic relaxation. Both KW versus KE (R2 = 0.949-0.980) and Py versus. b-1 correlations (R2 = 0.820-0.934) were reasonably linear with regards to increasing hydroxypropyl substitution and molecular size. Hence, it can be concluded that the combined knowledge of swelling and erosion kinetics in tandem with the in- and out-of-die compression findings can be used to select a specific polymer grade and further to develop and optimize formulations for oral controlled drug delivery applications.
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Affiliation(s)
- Muhammad U Ghori
- a Department of Pharmacy, School of Applied Sciences , University of Huddersfield , Queensgate , Huddersfield , UK
| | - Liam M Grover
- b School of Chemical Engineering , University of Birmingham , Edgbaston , Birmingham , UK
| | - Kofi Asare-Addo
- a Department of Pharmacy, School of Applied Sciences , University of Huddersfield , Queensgate , Huddersfield , UK
| | - Alan M Smith
- a Department of Pharmacy, School of Applied Sciences , University of Huddersfield , Queensgate , Huddersfield , UK
| | - Barbara R Conway
- a Department of Pharmacy, School of Applied Sciences , University of Huddersfield , Queensgate , Huddersfield , UK
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14
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McGinity M, Floyd JR, McGinity J, Zhang F. Implant compositions for the unidirectional delivery of drugs to the brain. Drug Dev Ind Pharm 2017; 43:1421-1429. [DOI: 10.1080/03639045.2017.1318904] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Michael McGinity
- Department of Neurosurgery, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - John R. Floyd
- Department of Neurosurgery, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - James McGinity
- College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Feng Zhang
- College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
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15
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Pajander J, Rensonnet A, Hietala S, Rantanen J, Baldursdottir S. The evaluation of physical properties of injection molded systems based on poly(ethylene oxide) (PEO). Int J Pharm 2017; 518:203-212. [DOI: 10.1016/j.ijpharm.2016.12.050] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2016] [Revised: 12/06/2016] [Accepted: 12/21/2016] [Indexed: 10/20/2022]
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16
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Cantin O, Siepmann F, Danede F, Willart J, Karrout Y, Siepmann J. PEO hot melt extrudates for controlled drug delivery: Importance of the molecular weight. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.09.003] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Hu A, Chen C, Mantle MD, Wolf B, Gladden LF, Rajabi-Siahboomi A, Missaghi S, Mason L, Melia CD. The Properties of HPMC:PEO Extended Release Hydrophilic Matrices and their Response to Ionic Environments. Pharm Res 2016; 34:941-956. [DOI: 10.1007/s11095-016-2031-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2016] [Accepted: 08/25/2016] [Indexed: 01/22/2023]
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18
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Fu S, Buckner IS, Block LH. Inter-grade and inter-batch variability of sodium alginate used in alginate-based matrix tablets. AAPS PharmSciTech 2014; 15:1228-37. [PMID: 24889735 DOI: 10.1208/s12249-014-0154-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Accepted: 05/14/2014] [Indexed: 11/30/2022] Open
Abstract
The purpose of this study is to characterize the inter-grade and inter-batch variability of sodium alginate used in the formulation of matrix tablets. Four different grades and three batches of one grade of sodium alginate were used to prepare matrix tablets. Swelling, erosion, and drug release tests of sodium alginate matrix tablets were conducted in a USP dissolution apparatus. Substantial differences in swelling and erosion behavior of sodium alginate matrix tablets were evident among different viscosity grades. Even different batches of the same grade exhibit substantial differences in the swelling and erosion behavior of their matrix tablets. The erosion behavior of sodium alginate matrix tablets can be partly explained by their rheological properties (both apparent viscosity and viscoelasticity) in solution. Sodium alginate with higher apparent viscosity and viscoelasticity in solution show slower erosion rate and higher swelling rate. Compacts prepared from grades or batches with higher viscosity and higher viscoelasticity show slower drug release. For grades or batches with similar apparent viscosities, apparent viscosities of sodium alginate solution at low concentration alone are not sufficient to predict the functionality of sodium alginate in matrix tablets. Viscoelastic properties of sodium alginate solutions at one high concentration corresponding to the polymer gel state, may be suitable indicia of the extended release behavior of sodium alginate matrix tablets.
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19
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Ma L, Deng L, Chen J. Applications of poly(ethylene oxide) in controlled release tablet systems: a review. Drug Dev Ind Pharm 2013; 40:845-51. [DOI: 10.3109/03639045.2013.831438] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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20
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Advanced technologies for assessment of polymer swelling and erosion behaviors in pharmaceutical aspect. Eur J Pharm Biopharm 2013. [DOI: 10.1016/j.ejpb.2012.10.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Kaunisto E, Tajarobi F, Abrahmsen-Alami S, Larsson A, Nilsson B, Axelsson A. Mechanistic modelling of drug release from a polymer matrix using magnetic resonance microimaging. Eur J Pharm Sci 2013; 48:698-708. [DOI: 10.1016/j.ejps.2012.12.030] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2012] [Revised: 11/09/2012] [Accepted: 12/24/2012] [Indexed: 11/29/2022]
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Pajander J, Baldursdottir S, Rantanen J, Ostergaard J. Behaviour of HPMC compacts investigated using UV-imaging. Int J Pharm 2012; 427:345-53. [PMID: 22387216 DOI: 10.1016/j.ijpharm.2012.02.034] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2011] [Revised: 02/06/2012] [Accepted: 02/20/2012] [Indexed: 10/28/2022]
Abstract
The aim of the study was to visualize the behaviour of the hydroxypropyl methylcellulose (HPMC) in a buffer solution using UV imaging. The obtained results were related to rheological measurements in order to gain insight into critical polymer properties affecting drug release. Two viscosity grades of HPMC, 15cP and 50 cP, were used. The behaviour of the polymer at the surface of the compact was observed by UV-imaging at 214 nm for 90 min in a stagnant buffer solution and in presence of flow. Steady shear and oscillatory shear measurements were conducted to determine the rheological characteristics. Three distinctive phases could be detected by real-time UV-imaging of the HPMC; gel formation due to water penetration, further expansion of the gel into solution and finally steady conditions, where a critical polymer concentration that can withstand the shear forces without eroding was observed. The critical concentration corresponded to the rheologically determined gel point, which is the lowest concentration where a 3D-network is obtained. Higher viscosity grade HPMC swelled more rapidly and lead to a thicker gel layer, which was more resistant towards the shear forces due to the applied flow. The results showed that UV imaging is suitable for obtaining both qualitative and quantitative information on polymer behaviour.
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Affiliation(s)
- Jari Pajander
- Department of Pharmacy, Faculty of Health and Medicinal Sciences, University of Copenhagen, Denmark
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Momose W, Yoshino H, Katakawa Y, Yamashita K, Imai K, Sako K, Kato E, Irisawa A, Yonemochi E, Terada K. Applying terahertz technology for nondestructive detection of crack initiation in a film-coated layer on a swelling tablet. RESULTS IN PHARMA SCIENCES 2012; 2:29-37. [PMID: 25755992 DOI: 10.1016/j.rinphs.2012.04.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2012] [Revised: 04/03/2012] [Accepted: 04/05/2012] [Indexed: 10/28/2022]
Abstract
Here, we describe a nondestructive approach using terahertz wave to detect crack initiation in a film-coated layer on a drug tablet. During scale-up and scale-down of the film coating process, differences in film density and gaps between the film-coated layer and the uncoated tablet were generated due to differences in film coating process parameters, such as the tablet-filling rate in the coating machine, spray pressure, and gas-liquid ratio etc. Tablets using the PEO/PEG formulation were employed as uncoated tablets. We found that heat and humidity caused tablets to swell, thereby breaking the film-coated layer. Using our novel approach with terahertz wave nondestructively detect film surface density (FSD) and interface density differences (IDDs) between the film-coated layer and an uncoated tablet. We also found that a reduced FSD and IDD between the film-coated layer and uncoated tablet increased the risk of crack initiation in the film-coated layer, thereby enabling us to nondestructively predict initiation of cracks in the film-coated layer. Using this method, crack initiation can be nondestructively assessed in swelling tablets after the film coating process without conducting accelerated stability tests, and film coating process parameters during scale-up and scale-down studies can be appropriately established.
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Affiliation(s)
- Wataru Momose
- Pharmaceutical Research & Technology Laboratories, Astellas Pharma Inc., Yaizu, Shizuoka 425-0072, Japan ; Faculty of Pharmaceutical Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan ; PAT Committee, Japan Society of Pharmaceutical Machinery and Engineering, Miyoshi Bld. 3F, 2-7-3 Kandata-cho, Chiyoda-ku, Tokyo 101-0046, Japan
| | - Hiroyuki Yoshino
- Pharmaceutical Research & Technology Laboratories, Astellas Pharma Inc., Yaizu, Shizuoka 425-0072, Japan
| | - Yoshifumi Katakawa
- Pharmaceutical Research & Technology Laboratories, Astellas Pharma Inc., Yaizu, Shizuoka 425-0072, Japan
| | - Kazunari Yamashita
- Pharmaceutical Research & Technology Laboratories, Astellas Pharma Inc., Yaizu, Shizuoka 425-0072, Japan
| | - Keiji Imai
- Pharmaceutical Research & Technology Laboratories, Astellas Pharma Inc., Yaizu, Shizuoka 425-0072, Japan
| | - Kazuhiro Sako
- Pharmaceutical Research & Technology Laboratories, Astellas Pharma Inc., Yaizu, Shizuoka 425-0072, Japan
| | - Eiji Kato
- Advantest Corporation, 48-2 Matsubara, Kamiayashi, Aoba-ku, Sendai, Miyagi 989-3124, Japan
| | - Akiyoshi Irisawa
- Advantest Corporation, 48-2 Matsubara, Kamiayashi, Aoba-ku, Sendai, Miyagi 989-3124, Japan
| | - Etsuo Yonemochi
- Faculty of Pharmaceutical Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan ; PAT Committee, Japan Society of Pharmaceutical Machinery and Engineering, Miyoshi Bld. 3F, 2-7-3 Kandata-cho, Chiyoda-ku, Tokyo 101-0046, Japan
| | - Katsuhide Terada
- Faculty of Pharmaceutical Science, Toho University, 2-2-1 Miyama, Funabashi, Chiba 274-8510, Japan ; PAT Committee, Japan Society of Pharmaceutical Machinery and Engineering, Miyoshi Bld. 3F, 2-7-3 Kandata-cho, Chiyoda-ku, Tokyo 101-0046, Japan
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Leskinen JTT, Hakulinen MA, Kuosmanen M, Ketolainen J, Abrahmsén-Alami S, Lappalainen R. Monitoring of swelling of hydrophilic polymer matrix tablets by ultrasound techniques. Int J Pharm 2010; 404:142-7. [PMID: 21094229 DOI: 10.1016/j.ijpharm.2010.11.026] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2010] [Revised: 11/11/2010] [Accepted: 11/12/2010] [Indexed: 11/16/2022]
Abstract
The aim of this study was to investigate the ability of ultrasound (US) techniques to monitor the swelling behaviour of hydrophilic polymer matrix tablets. Tablets were prepared from hydroxypropyl methylcellulose (HPMC) and polyethylene oxide (PEO) polymers. The movement of the eroding front was investigated with ultrasound scanning techniques on each tablet's outer interface during tablet immersion in phosphate buffer (PB). In addition, a US window technique was utilized to simultaneously evaluate eroding and swelling front movements during the tablet dissolution process. An optical monitoring was used as the reference method. The focused pulsed echo ultrasound method was found to be applicable for evaluating the swelling process of hydrophilic polymer matrix tablets. Furthermore, it was noted that the sensitivity to follow hydrogel formation and thickening by US monitoring varied depending on the polymer under study. Thus, multifront detection is challenging since the hydrogels formed by different polymers may have totally different acoustic properties. It was found that the microbubbles formed inside the hydrogel were acting as a "contrast agent", characteristic of some polymers during immersion. In spite of these challenges, the US window technique introduced in this study was proven to be a promising method for simultaneous multifront detection.
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Affiliation(s)
- Jari T T Leskinen
- Department of Physics and Mathematics, BioMater Centre, University of Eastern Finland, POB 1627, FI-70211 Kuopio, Finland.
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25
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Kaunisto E, Abrahmsen-Alami S, Borgquist P, Larsson A, Nilsson B, Axelsson A. A mechanistic modelling approach to polymer dissolution using magnetic resonance microimaging. J Control Release 2010; 147:232-41. [DOI: 10.1016/j.jconrel.2010.07.102] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2010] [Revised: 07/07/2010] [Accepted: 07/08/2010] [Indexed: 11/29/2022]
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26
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Körner A, Piculell L, Iselau F, Wittgren B, Larsson A. Influence of different polymer types on the overall release mechanism in hydrophilic matrix tablets. Molecules 2009; 14:2699-716. [PMID: 19701117 PMCID: PMC6255376 DOI: 10.3390/molecules14082699] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2009] [Revised: 07/10/2009] [Accepted: 07/15/2009] [Indexed: 11/16/2022] Open
Abstract
The effect of three different types of polymer chain structures on the polymer release from hydrophilic matrix tablets was investigated by comparing a synthetic semi-crystalline linear polymer (PEO), a branched amorphous polysaccharide (dextran) and an amorphous substituted cellulose derivative (HPMC). The polymer release rates for tablets containing mixtures of high and low molecular weight grades in different ratios were determined by using a modified USP II method and a SEC-RI chromatography system. The results showed that independent of polymer type: (i) plots of the release versus time had similar shapes, (ii) the release of long and short polymer chains was equal and no fractionation occurred during the release and (iii) the release rate could be related to the average intrinsic viscosity of the polymer mixtures. This confirms the hypothesis that the release rate can be related to a constant viscosity on the surface of the hydrophilic matrix tablet and that it is valid for all the investigated polymers.
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Affiliation(s)
- Anna Körner
- SCA Hygiene Products, SE-405 03 Göteborg, Sweden; E-mail: (A.K.)
| | - Lennart Piculell
- Department of Physical Chemistry 1, Lund University, Box 124, SE-221 00, Lund, Sweden; E-mail: (L.P.)
| | - Frida Iselau
- AstraZeneca R&D, SE-431 83, Mölndal, Sweden; E-mails: (F.I.), (B.W.)
| | - Bengt Wittgren
- AstraZeneca R&D, SE-431 83, Mölndal, Sweden; E-mails: (F.I.), (B.W.)
| | - Anette Larsson
- Department of Chemistry and Bioengineering, Chalmers University of Technology, SE-412 96, Gothenburg, Sweden
- Author to whom correspondence should be addressed; E-mail:
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