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Deshkar S, Yeole P, Mahore J, Shinde A, Giram P. Polyelectrolyte-Complex-Based Hydrogel Inserts for Vaginal Delivery of Posaconazole and Probiotics. Gels 2023; 9:851. [PMID: 37998941 PMCID: PMC10670537 DOI: 10.3390/gels9110851] [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: 06/30/2023] [Revised: 08/01/2023] [Accepted: 10/24/2023] [Indexed: 11/25/2023] Open
Abstract
Worldwide, 40 to 50% of women suffer from reproductive tract infections. Most of these infections are mixed infections, are recurrent and difficult to treat with antimicrobials or antifungals alone. For symptomatic relief of infections, oral antimicrobial therapy must be combined with topical therapy. The purpose of this work is to optimize and develop a polyelectrolyte complex (PEC) of chitosan/anion for the formulation of posaconazole- and probiotic-loaded vaginal hydrogel inserts with prolonged release and significant mucoadhesion. PECs were prepared using chitosan as cationic and carrageenan, pectin and polycarbophil as anionic polymers via a lyophilization technique. PEC formation was confirmed by scanning electron microscopy, Fourier transform infrared spectroscopy and differential scanning calorimetry, by observing changes in its surface, physical and thermal properties. The probiotic, Lactobacillus casei, was added to the PEC during the lyophilization process and the effect on the probiotic viability was studied. The PECs were further compressed along with posaconazole to form hydrogel inserts and optimized using a 32 full-factorial design. The hydrogel inserts were assessed for swelling behavior, drug release, in vitro mucoadhesion and in vitro antifungal activity. The chitosan-pectin hydrogel insert demonstrated excellent mucoadhesion (1.25 N), sustained drug release (88.2 ± 2.4% in 8 h) and a swelling index of 154.7%. The efficacy of hydrogel inserts was evaluated using in vitro study with a co-culture of Lactobacillus casei and Candida albicans. This study revealed an increase in Lactobacilli casei count and a significant drop in the viable count of Candida albicans (4-log reduction in 24 h), indicating the effectiveness of hydrogel inserts in alleviating the fungal infection. Overall, our study demonstrated the potential of the hydrogel insert for preventing vaginal infection and restoring normal vaginal microbiota.
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Affiliation(s)
- Sanjeevani Deshkar
- Department of Pharmaceutics, Dr. D. Y. Patil Unitech Society’s, Dr. D. Y. Patil Institute of Pharmaceutical Science & Research, Pune 411018, India; (P.Y.); (J.M.); (A.S.)
| | - Purva Yeole
- Department of Pharmaceutics, Dr. D. Y. Patil Unitech Society’s, Dr. D. Y. Patil Institute of Pharmaceutical Science & Research, Pune 411018, India; (P.Y.); (J.M.); (A.S.)
| | - Jayashri Mahore
- Department of Pharmaceutics, Dr. D. Y. Patil Unitech Society’s, Dr. D. Y. Patil Institute of Pharmaceutical Science & Research, Pune 411018, India; (P.Y.); (J.M.); (A.S.)
| | - Ankita Shinde
- Department of Pharmaceutics, Dr. D. Y. Patil Unitech Society’s, Dr. D. Y. Patil Institute of Pharmaceutical Science & Research, Pune 411018, India; (P.Y.); (J.M.); (A.S.)
| | - Prabhanjan Giram
- Department of Pharmaceutics, Dr. D. Y. Patil Unitech Society’s, Dr. D. Y. Patil Institute of Pharmaceutical Science & Research, Pune 411018, India; (P.Y.); (J.M.); (A.S.)
- Department of Pharmaceutical Sciences, The State University of New York, Buffalo, NY 14214, USA
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Erkoç T, Sevgili LM, Çavuş S. Hydroxypropyl cellulose/Polyvinylpyrrolidone Matrix Tablets Containing Ibuprofen: Infiltration, Erosion and Drug Release Characteristics. ChemistrySelect 2022. [DOI: 10.1002/slct.202202180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tuğba Erkoç
- Istanbul University-Cerrahpaşa Faculty of Engineering Department of Chemical Engineering 34320 Istanbul Turkey
| | - Lutfullah M. Sevgili
- Istanbul University-Cerrahpaşa Faculty of Engineering Department of Chemical Engineering 34320 Istanbul Turkey
| | - Selva Çavuş
- Istanbul University-Cerrahpaşa Faculty of Engineering Department of Chemical Engineering 34320 Istanbul Turkey
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Oroná JD, Zorrilla SE, Peralta JM. Sensitivity analysis on the release of food active compounds from viscoelastic matrices. J FOOD ENG 2022. [DOI: 10.1016/j.jfoodeng.2021.110919] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Ward SA, Kirkwood RN, Plush KJ, Abdella S, Song Y, Garg S. Development of a Novel Vaginal Drug Delivery System to Control Time of Farrowing and Allow Supervision of Piglet Delivery. Pharmaceutics 2022; 14:pharmaceutics14020340. [PMID: 35214072 PMCID: PMC8874451 DOI: 10.3390/pharmaceutics14020340] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Revised: 01/25/2022] [Accepted: 01/25/2022] [Indexed: 12/10/2022] Open
Abstract
The swine industry has evolved significantly in the recent decades, but this has come at considerable expense to piglet survival. Breeding sows for greater prolificacy has been accompanied by a greater proportion of piglets being born underweight, of lower vigor, and higher susceptibility to early mortality. Inducing sows to farrow during working hours has the potential to increase piglet survivability, but non-therapeutic injectable products are often discouraged on farms. We aimed to design and develop a novel vaginal drug delivery system (NVDDS) that could reliably trigger luteolysis and induce parturition. To achieve this, two vaginal tablets containing the luteolytic agent cloprostenol were formulated to be inserted together: one would release constituents immediately on insertion (immediate release; IR) and the other would release cloprostenol in a controlled manner (controlled release; CR). The two formulations (IR and CR) were evaluated for drug release, swelling and bio-adhesion in conditions simulating the sow vaginal environment. The IR tablet released the drug completely for 5 min whereas the CR tablet took 5 h to release 50% of the drug. Furthermore, the release kinetics were evaluated by fitting the dissolution profiles into different mathematical models. Both IR and CR tablets were best fitted by the Makoid–Banakar model which assumes release by summation of different mechanisms. The performance of the optimized formulations was studied in vivo with 161 Large White x Landrace sows of varying parity (0–5). The sows were assigned to five groups. Group 1 (SI) received a single vulval injection of cloprostenol at 0700 h (n = 32), group 2 (SDI) received the same dose split in two parts, at 0700h and 1300h (n = 33). Group 3 (IRT) animals were administered an IR tablet at 0700h (n = 32), while group 4 (IRCRT) received both IR and CR tablets at 0700 h (n = 33). Group 5 was untreated and served as a control (n = 32). The interval to farrowing was longer (p < 0.001) for controls than for treated sows, but there were no differences among cloprostenol treatments for timing of farrowing. The finding confirms the efficacy of the NVDDS for induction of farrowing in sows.
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Affiliation(s)
- Sophia A. Ward
- School of Animal and Veterinary Sciences, University of Adelaide, Adelaide, SA 5371, Australia;
- Correspondence:
| | - Roy N. Kirkwood
- School of Animal and Veterinary Sciences, University of Adelaide, Adelaide, SA 5371, Australia;
| | - Kate J. Plush
- Sunpork Group, 1/6 Eagleview Place, Eagle Farm, QLD 4009, Australia;
| | - Sadikalmahdi Abdella
- Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia; (S.A.); (Y.S.); (S.G.)
| | - Yunmei Song
- Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia; (S.A.); (Y.S.); (S.G.)
| | - Sanjay Garg
- Clinical and Health Sciences, University of South Australia, Adelaide, SA 5000, Australia; (S.A.); (Y.S.); (S.G.)
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Siamidi A, Dedeloudi A, Vlachou M. Probing the Release of Bupropion and Naltrexone Hydrochloride Salts from Biopolymeric Matrices of Diverse Chemical Structures. Polymers (Basel) 2021; 13:polym13091456. [PMID: 33946250 PMCID: PMC8125139 DOI: 10.3390/polym13091456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 04/25/2021] [Accepted: 04/28/2021] [Indexed: 11/16/2022] Open
Abstract
In the last decades, the notion of including excipients in the formulations, as inert substances aiding production processes, has changed and they are recently viewed as multifunctional discrete entities. It is now well documented that excipients serve several roles, spreading from the stabilization and modified release, to providing biocompatible properties and targeting moieties. The aim of this study was to develop matrix-based oral drug delivery systems of bupropion hydrochloride (BUP·HCl) and naltrexone hydrochloride (NTX·HCl), suitable for releasing these active substances in a modified manner, providing a stable level of drug release, which is simultaneously therapeutically effective and non-toxic, thus reducing side effects, after a single dose administration, throughout the gastrointestinal tract. The new formulations, employing hydroxypropylmethycellulose (HPMC K15M) (a cellulosic polymer, which, generally hydrates to form a gelatinous layer that is critical to prevent wetting and rapid drug release from the matrices), poly(methacylic acid-co-ethyl acrylate) 1:1 (Eudragit® L100-55: effective for site specific drug delivery in intestine), poly(ethylene oxide) (PEO) (7 × 106: a high molecular weight polymer, water-soluble, in micro-granular powder form), as the rate controlling polymers, were chosen to lead to a "soothing out" release pattern of these drugs, at 0 ≤ t ≤ 120 min. Moreover, the release of the two drugs from the ulvan-based tablets, was found to follow the desired profile, throughout the entire course of the dissolution experiments.
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El-Masry SM, Helmy SA. Hydrogel-based matrices for controlled drug delivery of etamsylate: Prediction of in-vivo plasma profiles. Saudi Pharm J 2020; 28:1704-1718. [PMID: 33424262 PMCID: PMC7783234 DOI: 10.1016/j.jsps.2020.10.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2020] [Accepted: 10/31/2020] [Indexed: 11/17/2022] Open
Abstract
Objectives To design oral controlled release (CR) hydrogel matrix tablets of etamsylate using various hydrophilic polymers. Additionally, to predict plasma concentration-time profiles of etamsylate released from different CR matrices. Methods Characterization of the in-vitro release rate was performed by various model dependent and model independent approaches. A simple numerical convolution strategy was adopted to predict the in-vivo performance of all matrices from their in-vitro percent released data. The statistical analysis was conducted utilizing a student t-test and ANOVA. Results The release of etamsylate from all matrices showed a deviation from Fickian transport mechanism except; F2 followed Case II release whereas, F9 and F11 obeyed Fickian diffusion. CR hydrogel based-matrices (F4 and F11) demonstrated the maximum drug retardation and satisfied the USP release limits. Concentration-time profiles of etamsylate were predicted successfully from the in-vitro release data of all prepared matrices. Pharmacokinetic parameters of etamsylate CR hydrogel matrices were significantly changed with comparison to reference product except F1. Conclusion The designed (F2-F11) matrices had the capability to extend the plasma level of etamsylate for an adequate time. However, F4 and F11 were considered the most ideal formulations for once daily application of etamsylate. The prediction of in-vivo pharmacokinetics of etamsylate was very useful to assess the rationality of the designed matrices for the practical application in humans.
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Affiliation(s)
- Soha M. El-Masry
- Department of Pharmaceutics, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt
| | - Sally A. Helmy
- Department of Pharmaceutics, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt
- Department of Clinical and Hospital Pharmacy, Faculty of Pharmacy, Taibah University, AL-Madinah AL-Munawarah, Saudi Arabia
- Corresponding author at: Department of Pharmaceutics, Faculty of Pharmacy, Damanhour University, Damanhour, Egypt; Department of Clinical and Hospital Pharmacy, Faculty of Pharmacy, Taibah University, AL-Madinah AL-Munawarah, Saudi Arabia.
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Application of statistical design on the early development of sustained-release tablet containing ivy leaf extract. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101319] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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Lee HG, Park YS, Jeong JH, Kwon YB, Shin DH, Kim JY, Rhee YS, Park ES, Kim DW, Park CW. Physicochemical properties and drug-release mechanisms of dual-release bilayer tablet containing mirabegron and fesoterodine fumarate. DRUG DESIGN DEVELOPMENT AND THERAPY 2019; 13:2459-2474. [PMID: 31413543 PMCID: PMC6661997 DOI: 10.2147/dddt.s212520] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/16/2019] [Accepted: 07/01/2019] [Indexed: 11/25/2022]
Abstract
Introduction: In this study, a dual release bi-layer tablet containing Fesoterodine fumarate (Fst) 5 mg and Mirabegron (Mrb) 50 mg was prepared to investigate the different release behavior of each drug in bilayer tablet. The bilayer tablet was prepared based on monolayer-tablet formulation of each drug. Methods: The optimized bi-layer tablet showed an in vitro dissolution profile similar to commercial reference tablets Toviaz and Betmiga, based on a satisfactory similarity factor. Drug-release kinetics of each drug in the bilayer tablet were evaluated based on dissolution profiles. Drug-release behavior was evaluated by observing the surface of each layer by scanning electron microscopy and measuring the changes in weight and volume of the tablet during dissolution. Drug transfer between each layer was also investigated by Fourier -transform infrared spectroscopic imaging by observing the cross-section of the bilayer tablet cut vertically during dissolution. Results: The release of Fst was well suited for the Higuchi model, and the release of Mrb was well suited for the Hixson-crowell model. Compared with dissolution rate of each monolayer tablet, that of Fst in the bilayer tablet was slightly reduced (5%), but the dissolution rate of Mrb in bilayer tablet was dramatically decreased (20%). Also, a drug-release study confirmed that polymer swelling was dominant in Fst layer compared with polymer erosion, and degradation was dominant in MRB layer. Fourier-transform infrared imaging and 3-D image reconstruction showed that drug transfer in the bilayer tablet correlates with the results of drug-release behavior. Conclusion: These findings are expected to provide scientific insights in the development of a dual-release bilayer drug-delivery system for Fst and Mrb.
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Affiliation(s)
- Hong-Goo Lee
- College of Pharmacy, Chungbuk National University, Cheongju 28160, South Korea
| | - Yun-Sang Park
- College of Pharmacy, Chungbuk National University, Cheongju 28160, South Korea
| | - Jin-Hyuk Jeong
- College of Pharmacy, Chungbuk National University, Cheongju 28160, South Korea
| | - Yong-Bin Kwon
- College of Pharmacy, Chungbuk National University, Cheongju 28160, South Korea
| | - Dae Hwan Shin
- College of Pharmacy, Chungbuk National University, Cheongju 28160, South Korea
| | - Ju-Young Kim
- College of Pharmacy, Woosuk University, Wanju 55338, South Korea
| | - Yun-Seok Rhee
- College of Pharmacy and Research Institute of Pharmaceutical Sciences, Gyeongsang National University, Jinju 52828, South Korea
| | - Eun-Seok Park
- School of Pharmacy, Sungkyunkwan University, Suwon 16419, South Korea
| | - Dong-Wook Kim
- Department of Pharmaceutical Engineering, Cheongju University, Cheongju 28530, South Korea
| | - Chun-Woong Park
- College of Pharmacy, Chungbuk National University, Cheongju 28160, South Korea
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Kallakunta VR, Patil H, Tiwari R, Ye X, Upadhye S, Vladyka RS, Sarabu S, Kim DW, Bandari S, Repka MA. Exploratory studies in heat-assisted continuous twin-screw dry granulation: A novel alternative technique to conventional dry granulation. Int J Pharm 2018; 555:380-393. [PMID: 30458256 DOI: 10.1016/j.ijpharm.2018.11.045] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 11/13/2018] [Accepted: 11/16/2018] [Indexed: 11/16/2022]
Abstract
Dry granulation is the preferred technique for solvent-sensitive products, especially drugs with stability problems such as hydrolysis. Twin-screw granulation is a continuous granulation technique, offering a potential alternative to conventional dry granulation techniques such as roller compaction. The major advantage of twin-screw granulation is the ability to adjust process parameters of dry granulation without compromising the compression properties. This study was aimed to perform exploratory studies of heat-assisted continuous twin-screw dry granulation process to formulate sustained release tablets for APIs with different melting points: theophylline, acetaminophen and lidocaine hydrochloride hydrate. Granulation feasibility was studied with different binders (e.g. Klucel™ EF, Kollidon® VA64), sustained release agents (e.g. Klucel™ MF, Eudragit® RSPO) and diluents at various drug loads. The processing conditions were below the melting point or glass transition temperature of the formulation ingredients. After successful granulation, DSC and XRD studies revealed the crystalline nature of the granules and FTIR studies showed no interaction of the API with the excipients. The granules were compressed into sustained release tablets without any compressibility issues. The tablets were stable after testing for 6 months at 25 °C/60% RH. This novel continuous dry granulation technique may offer an excellent alternative to conventional dry granulation techniques.
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Affiliation(s)
- Venkata Raman Kallakunta
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, United States
| | - Hemlata Patil
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, United States
| | - Roshan Tiwari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, United States
| | - Xingyou Ye
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, United States
| | - Sampada Upadhye
- Catalent Pharma Solutions, 14 School House Road, Somerset, NJ 08873, USA
| | - Ronald S Vladyka
- Catalent Pharma Solutions, 14 School House Road, Somerset, NJ 08873, USA
| | - Sandeep Sarabu
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, United States
| | - Dong Wuk Kim
- College of Pharmacy, Kyungpook National University, Daegu 41566, South Korea
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, United States
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, The University of Mississippi, MS 38677, United States; Pii Center for Pharmaceutical Technology, University of Mississippi, MS 38677, USA.
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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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11
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Advances in mechanistic understanding of release rate control mechanisms of extended-release hydrophilic matrix tablets. Ther Deliv 2016; 7:553-72. [DOI: 10.4155/tde-2016-0026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Approaches to characterizing and developing understanding around the mechanisms that control the release of drugs from hydrophilic matrix tablets are reviewed. While historical context is provided and direct physical characterization methods are described, recent advances including the role of percolation thresholds, the application on magnetic resonance and other spectroscopic imaging techniques are considered. The influence of polymer and dosage form characteristics are reviewed. The utility of mathematical modeling is described. Finally, how all the information derived from applying the developed mechanistic understanding from all of these tools can be brought together to develop a robust and reliable hydrophilic matrix extended-release tablet formulation is proposed.
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12
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Swelling, erosion and drug release characteristics of Sodium Diclofenac from heterogeneous matrix tablets. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2015.12.005] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Starch-free grewia gum matrices: Compaction, swelling, erosion and drug release behaviour. Int J Pharm 2015; 496:689-98. [DOI: 10.1016/j.ijpharm.2015.10.071] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 10/27/2015] [Accepted: 10/28/2015] [Indexed: 11/18/2022]
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14
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Nguyen TNG, Tran PHL, Van Vo T, Duan W, Truong-Dinh Tran T. Development of a Sustained Release Solid Dispersion Using Swellable Polymer by Melting Method. Pharm Res 2015; 33:102-9. [DOI: 10.1007/s11095-015-1767-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2015] [Accepted: 08/04/2015] [Indexed: 10/23/2022]
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15
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Oh CM, Ru Shan Siow C, Wan Sia Heng P, Chan LW. Impact of HPMC on the physical properties of spray-congealed PEG microparticles and its swelling effect on rifampicin dissolution. Drug Dev Ind Pharm 2015; 42:403-11. [DOI: 10.3109/03639045.2015.1061536] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Ching Mien Oh
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Carin Ru Shan Siow
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Paul Wan Sia Heng
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore, Singapore
| | - Lai Wah Chan
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, Faculty of Science, National University of Singapore, Singapore, Singapore
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16
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Ghori MU, Ginting G, Smith AM, Conway BR. Simultaneous quantification of drug release and erosion from hypromellose hydrophilic matrices. Int J Pharm 2014; 465:405-12. [DOI: 10.1016/j.ijpharm.2014.02.028] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2014] [Revised: 02/17/2014] [Accepted: 02/17/2014] [Indexed: 10/25/2022]
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17
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Jivani RR, Patel CN, Jivani NP. Statistical Design of Experiments on Fabrication of Bilayer Tablet of Narrow Absorption Window Drug: Development and In vitro characterisation. Indian J Pharm Sci 2013; 74:302-11. [PMID: 23626385 PMCID: PMC3630725 DOI: 10.4103/0250-474x.107049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2011] [Revised: 08/06/2012] [Accepted: 08/11/2012] [Indexed: 12/04/2022] Open
Abstract
The current study involves the fabrication of oral bioadhesive bilayer matrices of narrow absorption window drug baclofen and the optimisation of their in vitro drug release and characterisation. Statistical design of experiments, a computer-aided optimisation technique, was used to identify critical factors, their interactions and ideal process conditions that accomplish the targeted response(s). A central composite design was employed to systematically optimise the drug delivery containing a polymer, filler and compression force. The values of ratio of different grades of hydroxypropyl methylcellulose, microcrystalline cellulose and compression force were varied to be fitted in design. Drug release at 1 h (Q1), 4 h (Q4), 8 h (Q8), 12 h (Q12), and hardness were taken as responses. Tablets were prepared by direct compression methods. The compressed tablets were evaluated for their hardness, weight variation, friability, content uniformity and diameter. Counter plots were drawn and optimum formulation was selected by desirability function. The formulations were checked for their ex vivo mucoadhesion. The experimental value of Q1, Q4, Q8, Q12 and hardness for check-point batch was found to be 31.64, 45.82, 73.27, 98.95% and 4.4 kg/cm2, respectively. The release profile indicates Highuchi kinetics (Fickian transport) mechanism. The results of the statistical analysis of the data demonstrated significant interactions amongst the formulation variables, and the desirability function was demonstrated to be a powerful tool to predict the optimal formulation for the bilayer tablet.
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Affiliation(s)
- R R Jivani
- Department of Pharmaceutics, C. U. Shah College of Pharmacy and Research, Wadhwan-363 030, India
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Bresolin JR, Largura MCT, Dalri CC, Hoffer G, Rodrigues CA, Lucinda-Silva RM. Spray-dried O-carboxymethyl chitosan as potential hydrophilic matrix tablet for sustained release of drug. Drug Dev Ind Pharm 2013; 40:503-10. [DOI: 10.3109/03639045.2013.771644] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Aj R, Hn Y, Sb S. Natural gums as sustained release carriers: development of gastroretentive drug delivery system of ziprasidone HCl. ACTA ACUST UNITED AC 2012; 20:58. [PMID: 23352292 PMCID: PMC3556007 DOI: 10.1186/2008-2231-20-58] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Accepted: 10/09/2012] [Indexed: 11/28/2022]
Abstract
Background Objective of this study is to show the potential use of natural gums in the development of drug delivery systems. Therefore in this work gastro retentive tablet formulations of ziprasidone HCl were developed using simplex lattice design considering concentration of okra gum, locust bean gum and HPMC K4M as independent variables. A response surface plot and multiple regression equations were used to evaluate the effect of independent variables on hardness, flag time, floating time and drug release for 1 h, 2 h, and 8 h and for 24 h. A checkpoint batch was also prepared by considering the constraints and desirability of optimized formulation to improve its in vitro performance. Significance of result was analyzed using ANOVA and p < 0.05 was considered statistically significant. Results Formulation chiefly contains locust bean gum found to be favorable for hardness and floatability but combined effect of three variables was responsible for the sustained release of drug. The in vitro drug release data of check point batch (F8) was found to be sustained well compared to the most satisfactory formulation (F7) of 7 runs. The ‘n’ value was found to be between 0.5 and 1 suggesting that release of drug follows anomalous (non-fickian) diffusion mechanism indicating both diffusion and erosion mechanism from these natural gums. Predicted results were almost similar to the observed experimental values indicating the accuracy of the design. In vivo floatability test indicated non adherence to the gastric mucosa and tablets remain buoyant for more than 24 h. Conclusions Study showed these eco-friendly natural gums can be considered as promising SR polymers.
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Affiliation(s)
- Rajamma Aj
- Department of Pharmaceutics, Acharya & BM Reddy College of Pharmacy, Soladevanahally Hesaraghatta road, Bangalore, 560090, India.
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Cao QR, Choi JS, Liu Y, Xu WJ, Yang M, Lee BJ, Cui JH. A formulation approach for development of HPMC-based sustained release tablets for tolterodine tartrate with a low release variation. Drug Dev Ind Pharm 2012; 39:1720-30. [DOI: 10.3109/03639045.2012.730528] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Maderuelo C, Zarzuelo A, Lanao JM. Critical factors in the release of drugs from sustained release hydrophilic matrices. J Control Release 2011; 154:2-19. [DOI: 10.1016/j.jconrel.2011.04.002] [Citation(s) in RCA: 337] [Impact Index Per Article: 25.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2010] [Accepted: 03/29/2011] [Indexed: 11/30/2022]
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Badshah A, Subhan F, Shah NH, Bukhari NI, Saeed M, Shah KU. Once daily controlled release matrix tablet of Prochlorperazine maleate: Influence of Ethocel®and/or Methocel®onin vitrodrug release and bioavailability. Drug Dev Ind Pharm 2011; 38:190-9. [DOI: 10.3109/03639045.2011.595416] [Citation(s) in RCA: 4] [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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