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Origoni MX, Nardi-Ricart A, Suñé-Pou M, Pérez-Lozano P, Romero-Obón M, Negre JMS, Ochoa-Andrade AT, Montoya EG. Exploration of moisture activated dry granulation for the development of gastroretentive tablets aided by SeDeM diagram. Eur J Pharm Biopharm 2024; 203:114456. [PMID: 39153641 DOI: 10.1016/j.ejpb.2024.114456] [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: 04/19/2024] [Revised: 07/26/2024] [Accepted: 08/12/2024] [Indexed: 08/19/2024]
Abstract
Moisture activated dry granulation (MADG) is an attractive granulation process. However, only a few works have explored modified drug release achieved by MADG, and to the best of the authors knowledge, none of them have explored gastroretention. The aim of this study was to explore the applicability of MADG process for developing gastroretentive placebo tablets, aided by SeDeM diagram. Floating and swelling capacities have been identified as critical quality attributes (CQAs). After a formulation screening step, the type and concentration of floating matrix formers and of binders were identified as the most relevant critical material attributes (CMAs) to investigate in ten formulations. A multiple linear regression analysis (MLRA) was applied against the factors that were varied to find the design space. An optimized product based on principal component analysis (PCA) results and MLRA was prepared and characterized. The granulate was also assessed by SeDeM. In conclusion, granulates lead to floating tablets with short floating lag time (<2 min), long floating duration (>4 h), and showing good swelling characteristics. The results obtained so far are promising enough to consider MADG as an advantageous granulation method to obtain gastroretentive tablets or even other controlled delivery systems requiring a relatively high content of absorbent materials in their composition.
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Affiliation(s)
- María Ximena Origoni
- Graduate Program in Chemistry, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800 Montevideo, Uruguay; Pharmaceutical Technology, Department of Pharmaceutical Sciences, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800 Montevideo, Uruguay
| | - Anna Nardi-Ricart
- Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain
| | - Marc Suñé-Pou
- Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain; Pharmacotherapy, Pharmacogenetics and Pharmaceutical Technology Research Group Bellvitge Biomedical Research Institute (IDIBELL), Av. Gran Via de l'Hospitalet, 199-203, 08090 Barcelona, Spain
| | - Pilar Pérez-Lozano
- Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain; Pharmacotherapy, Pharmacogenetics and Pharmaceutical Technology Research Group Bellvitge Biomedical Research Institute (IDIBELL), Av. Gran Via de l'Hospitalet, 199-203, 08090 Barcelona, Spain.
| | - Miquel Romero-Obón
- Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain
| | - Josep Maria Suñé- Negre
- Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain; Pharmacotherapy, Pharmacogenetics and Pharmaceutical Technology Research Group Bellvitge Biomedical Research Institute (IDIBELL), Av. Gran Via de l'Hospitalet, 199-203, 08090 Barcelona, Spain
| | - Ana Teresa Ochoa-Andrade
- Pharmaceutical Technology, Department of Pharmaceutical Sciences, Facultad de Química, Universidad de la República, Gral. Flores 2124, 11800 Montevideo, Uruguay
| | - Encarna García- Montoya
- Department of Pharmacy and Pharmaceutical Technology and Physical Chemistry, Faculty of Pharmacy and Food Sciences, University of Barcelona, Av. Joan XXIII, 27-31, 08028 Barcelona, Spain; Pharmacotherapy, Pharmacogenetics and Pharmaceutical Technology Research Group Bellvitge Biomedical Research Institute (IDIBELL), Av. Gran Via de l'Hospitalet, 199-203, 08090 Barcelona, Spain
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Turac IR, Porfire A, Iurian S, Crișan AG, Casian T, Iovanov R, Tomuță I. Expanding the Manufacturing Approaches for Gastroretentive Drug Delivery Systems with 3D Printing Technology. Pharmaceutics 2024; 16:790. [PMID: 38931911 PMCID: PMC11207633 DOI: 10.3390/pharmaceutics16060790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 05/14/2024] [Accepted: 06/06/2024] [Indexed: 06/28/2024] Open
Abstract
Gastroretentive drug delivery systems (GRDDSs) have gained substantial attention in the last 20 years due to their ability to retain the drug in the stomach for an extended time, thus promoting an extended release and high bioavailability for a broad range of active pharmaceutical ingredients (APIs) that are pH-sensitive and/or have a narrow absorption window. The currently existing GRDDSs include floating, expanding, mucoadhesive, magnetic, raft-forming, ion-exchanging, and high-density systems. Although there are seven types of systems, the main focus is on floating, expanding, and mucoadhesive systems produced by various techniques, 3D printing being one of the most revolutionary and currently studied ones. This review assesses the newest production technologies and briefly describes the in vitro and in vivo evaluation methods, with the aim of providing a better overall understanding of GRDDSs as a novel emerging strategy for targeted drug delivery.
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Affiliation(s)
| | - Alina Porfire
- Department of Pharmaceutical Technology and Biopharmacy, Faculty of Pharmacy, University of Medicine and Pharmacy “Iuliu Hatieganu”, 400012 Cluj-Napoca, Romania; (I.-R.T.); (S.I.); (A.G.C.); (T.C.); (R.I.); (I.T.)
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Saady M, Shoman NA, Teaima M, Abdelmonem R, El-Nabarawi MA, Elhabal SF. Fabrication of gastro-floating sustained-release etoricoxib and famotidine tablets: design, optimization , in-vitro, and in-vivo evaluation. Pharm Dev Technol 2024; 29:429-444. [PMID: 38607310 DOI: 10.1080/10837450.2024.2343320] [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: 12/22/2023] [Accepted: 04/11/2024] [Indexed: 04/13/2024]
Abstract
In this study, a new gastro-floating sustained-release tablet (GFT) with a combination of Etoricoxib (ET) and Famotidine (FM) was successfully developed. GFTs were prepared by using a combination of hydrophilic swellable natural/semi-synthetic polymers as a controlled-release layer. Through a 24 full factorial statistical experimental design, the effects of formulation factors on the release of GFTs were conducted. The ideal floating tablet (FT) comprised konjac-gum (150 mg), guar-gum (26.57 mg), xanthan-gum (54.17 mg), and HPMC-K15-M (69.25 mg). The ideal FT exhibited a high swelling index (SI) (297.7%) and rapid FLT (around 50 s) in 0.1 N HCl as well as controlled release of ET (22.43% in 1 h and 77.47% in 8 h) and FM (24.89% in 1 h and 93.82% in 8 h) with the absence of any drug-excipient interactions. The AUC0∼72 (ng h/mL) of ET and FM in the GFTs were approximately double-fold of the market, respectively. The relative bioavailability was (207.48 ± 12.02% and 208.51 ± 13.11%) compared with commercial tablets. The X-ray imaging showed a promising buoyancy ability for approximately 8 h. These findings revealed the successful preparation of the sustained-release floating tablet with improved dual drug delivery.
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Affiliation(s)
- Marwa Saady
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Nabil A Shoman
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Mahmoud Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Rehab Abdelmonem
- Department of Industrial Pharmacy, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), Giza, Egypt
| | - Mohamed A El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Sammar Fathy Elhabal
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Modern University for Technology and Information (MTI), Mokattam, Cairo, Egypt
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Foja C, Senekowitsch S, Winter F, Grimm M, Rosenbaum C, Koziolek M, Feldmüller M, Kromrey ML, Scheuch E, Tzvetkov MV, Weitschies W, Schick P. Prolongation of the gastric residence time of caffeine after administration in fed state: Comparison of effervescent granules with an extended release tablet. Eur J Pharm Biopharm 2024; 199:114313. [PMID: 38718842 DOI: 10.1016/j.ejpb.2024.114313] [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: 02/15/2024] [Revised: 04/30/2024] [Accepted: 05/06/2024] [Indexed: 05/21/2024]
Abstract
The aim of the present study was to investigate the gastroretentive capacity of different formulation principles. This was indirectly determined by the absorption behavior of caffeine from the dosage forms. A slow and continuous appearance of caffeine in the saliva of healthy volunteers was used as a parameter for a prolonged gastric retention time. For this purpose, a four-way study was conducted with twelve healthy volunteers using the following test procedures: (1) Effervescent granules with 240 mL of still water administered in fed state, (2) effervescent granules with 20 mL of still water in fed state, (3) extended release (ER) tablet with 240 mL of still water in fed state, and (4) effervescent granules with 240 mL of still water in fasted state. The initial rise of the caffeine concentrations was more pronounced after the intake of the effervescent granules in the fed state compared to that of the ER tablets. However, tmax tended to be shorter in the fed study arms following administration of the ER tablet compared to the granules. Overall, the application of active pharmaceutical ingredients formulated as effervescent granules seems to be a promising approach to increase their gastric residence time after intake in fed state.
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Affiliation(s)
- Constantin Foja
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany
| | - Stefan Senekowitsch
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany
| | - Fabian Winter
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany
| | - Michael Grimm
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany
| | - Christoph Rosenbaum
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany
| | - Mirko Koziolek
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany
| | - Maximilian Feldmüller
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany
| | - Marie-Luise Kromrey
- Department of Diagnostic Radiology and Neuroradiology, University Medicine Greifswald, Ferdinand-Sauerbruch-Straße, 17475 Greifswald, Germany
| | - Eberhard Scheuch
- Department of Clinical Pharmacology, University Medicine Greifswald, Felix-Hausdorff-Straße 3, 17487 Greifswald, Germany
| | - Mladen V Tzvetkov
- Department of Clinical Pharmacology, University Medicine Greifswald, Felix-Hausdorff-Straße 3, 17487 Greifswald, Germany
| | - Werner Weitschies
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany
| | - Philipp Schick
- Department of Biopharmaceutics and Pharmaceutical Technology, Center of Drug Absorption and Transport, University of Greifswald, Germany.
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O’Connell LM, Coffey A, O’Mahony J. Alginate-Encapsulated Mycobacteriophage: A Potential Approach for the Management of Intestinal Mycobacterial Disease. Viruses 2023; 15:2290. [PMID: 38140531 PMCID: PMC10747741 DOI: 10.3390/v15122290] [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: 10/19/2023] [Revised: 11/17/2023] [Accepted: 11/21/2023] [Indexed: 12/24/2023] Open
Abstract
Encapsulated medication is a common method of administering therapeutic treatments. As researchers explore alternative therapies, it is likely that encapsulation will remain a feature of these novel treatments, particularly when routes of delivery are considered. For instance, alginate-encapsulation is often favoured where gastric digestion poses an obstacle. When exposed to cations (namely Ca2+), alginate readily forms gels that are resilient to acidic conditions and readily dissociate in response to mid-range pH. This action can be extremely valuable for the encapsulation of phages. The efficient delivery of phages to the intestine is important when considering mycobacteriophage (MP) therapy (or MP prophylaxis) for disseminated mycobacterial infections and chronic gastroenteritis conditions. This study presents the design and in vitro validation of an alginate-encapsulated MP capable of releasing phages in a pH-dependent manner. Ultimately, it is shown that encapsulated phages pretreated with simulated gastric fluid (SGF) are capable of releasing viable phages into simulated intestinal fluid (SIF) and thereby reducing the mycobacterial numbers in spiked SIF by 90%. These findings suggest that alginate encapsulation may be a viable option for therapeutic and prophylactic approaches to the management of intestinal mycobacterial disease, such as Johne's disease.
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Affiliation(s)
| | | | - Jim O’Mahony
- Biological Sciences Department, Munster Technological University Bishopstown Campus, T12 P928 Cork, Ireland
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Ahmad S, Khan JA, Kausar TN, Mahnashi MH, Alasiri A, Alqahtani AA, Alqahtani TS, Walbi IA, Alshehri OM, Elnoubi OA, Mahmood F, Sadiq A. Preparation, Characterization and Evaluation of Flavonolignan Silymarin Effervescent Floating Matrix Tablets for Enhanced Oral Bioavailability. Molecules 2023; 28:molecules28062606. [PMID: 36985575 PMCID: PMC10054735 DOI: 10.3390/molecules28062606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 03/06/2023] [Accepted: 03/09/2023] [Indexed: 03/17/2023] Open
Abstract
The convenient and highly compliant route for the delivery of active pharmaceutical ingredients is the tablet. A versatile platform of tablets is available for the delivery of therapeutic agents to the gastrointestinal tract. This study aimed to prepare gastro retentive drug delivery floating tablets of silymarin to improve its oral bioavailability and solubility. Hydroxypropyl methylcellulose (HPMCK4M and HPMCK15), Carbopol 934p and sodium bicarbonate were used as a matrix, floating enhancer and gas generating agent, respectively. The prepared tablets were evaluated for physicochemical parameters such as hardness, weight variation, friability, floating properties (floating lag time, total floating time), drug content, stability study, in vitro drug release, in vivo floating behavior and in vivo pharmacokinetics. The drug–polymer interaction was studied by Differential Scanning Calorimetry (DSC) thermal analysis and Fourier transform infrared (FTIR). The floating lag time of the formulation was within the prescribed limit (<2 min). The formulation showed good matrix integrity and retarded the release of drug for >12 h. The dissolution can be described by zero-order kinetics (r2 = 0.979), with anomalous diffusion as the release mechanism (n = 0.65). An in vivo pharmacokinetic study showed that Cmax and AUC were increased by up to two times in comparison with the conventional dosage form. An in vivo imaging study showed that the tablet was present in the stomach for 12 h. It can be concluded from this study that the combined matrix system containing hydrophobic and hydrophilic polymers min imized the burst release of the drug from the tablet and achieved a drug release by zero-order kinetics, which is practically difficult with only a hydrophilic matrix. An in vivo pharmacokinetic study elaborated that the bioavailability and solubility of silymarin were improved with an increased mean residence time.
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Affiliation(s)
- Sher Ahmad
- Department of Pharmacy, University of Peshawar, Peshawar 25120, KP, Pakistan
| | - Jamshaid Ali Khan
- Department of Pharmacy, University of Peshawar, Peshawar 25120, KP, Pakistan
- Correspondence: (J.A.K.); (M.H.M.); (A.S.)
| | | | - Mater H. Mahnashi
- Department of Pharmaceutical Chemistry, College of Pharmacy, Najran University, Najran 55461, Saudi Arabia
- Correspondence: (J.A.K.); (M.H.M.); (A.S.)
| | - Ali Alasiri
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 55461, Saudi Arabia
| | - Abdulsalam A. Alqahtani
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 55461, Saudi Arabia
| | - Thamer S. Alqahtani
- Department of Pharmaceutics, College of Pharmacy, Najran University, Najran 55461, Saudi Arabia
| | - Ismail A. Walbi
- Department of Clinical Pharmacy, College of Pharmacy, Najran University, Najran 55461, Saudi Arabia
| | - Osama M. Alshehri
- Department of Clinical Pharmacy, College of Pharmacy, Najran University, Najran 55461, Saudi Arabia
| | - Osman A. Elnoubi
- College of Applied Medical Sciences, Najran University, Najran 55461, Saudi Arabia
| | - Fawad Mahmood
- Department of Pharmacy, University of Peshawar, Peshawar 25120, KP, Pakistan
| | - Abdul Sadiq
- Department of Pharmacy, University of Malakand, Chakdara 18000, KP, Pakistan
- Correspondence: (J.A.K.); (M.H.M.); (A.S.)
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Veronica N, Heng PWS, Liew CV. Alginate-based matrix tablets for drug delivery. Expert Opin Drug Deliv 2023; 20:115-130. [PMID: 36503355 DOI: 10.1080/17425247.2023.2158183] [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: 12/14/2022]
Abstract
INTRODUCTION As a nature-derived polymer with swelling and gelling properties, alginate has found wide biopharma-relevant applications. However, there is comparatively limited attention on alginate in tablet formulations. Therefore, this review aimed to provide an overview of the applications of alginate in solid dosage form formulations. AREAS COVERED This review outlines the role of alginate for oral sustained release formulations. For better insights into its application in drug delivery, the mechanisms of drug release from alginate matrices are discussed alongside the alginate inherent properties and drug properties. Specifically, the influence of alginate properties and formulation components on the resultant alginate gel and subsequent drug release is reviewed. Modifications of the alginate to improve its properties in modulating drug release are also discussed. EXPERT OPINION Alginate-based matrix tablets is useful for sustaining drug release. As a nature-derived polymer, batch consistency and stability raise some concerns about employing alginate in formulations. Furthermore, the alginate gel properties can be affected by formulation components, pH of the dissolution environment and the tablet matrix micro-environment pH. Conscientious efforts are pivotal to addressing these formulation challenges to increase the utilization of alginate in oral solid dosage forms.
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Affiliation(s)
- Natalia Veronica
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, 117543, Singapore, Singapore
| | - Paul Wan Sia Heng
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, 18 Science Drive 4, 117543, Singapore, Singapore
| | - Celine Valeria Liew
- School of Pharmacy, Monash University Malaysia, Jalan Lagoon Selatan, Bandar Sunway, 47500, Subang Jaya, Malaysia
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Sodium Alginate as a Pharmaceutical Excipient: Novel Applications of a Well-known Polymer. J Pharm Sci 2022; 111:1250-1261. [PMID: 34986359 DOI: 10.1016/j.xphs.2021.12.024] [Citation(s) in RCA: 38] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 12/28/2021] [Accepted: 12/28/2021] [Indexed: 12/30/2022]
Abstract
Alginates are naturally occurring polymers revealing low toxicity, good biocompatibility and biodegradability, excellent gelling and thickening properties, as well as low production cost and good availability. One of the most important features typical for alginates is the ability to undergo ionotropic gelation which is gel formation process occurring upon the contact with cations. Because of their advantageous properties, alginates have been extensively utilized in food and pharmaceutical industries. In this review the current knowledge regarding the most recent studies involving both popularly applied dosage forms, like tablets or hydrogels, and novel advanced drug delivery systems applied in targeted therapies are summarized and discussed. The presented studies indicate that although sodium alginate is a well-established polymer, it is still widely applied as pharmaceutical excipient and the presented research studies indicate that there are still research areas that can be explored and provide innovation in drug delivery systems.
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Vrettos NN, Roberts CJ, Zhu Z. Gastroretentive Technologies in Tandem with Controlled-Release Strategies: A Potent Answer to Oral Drug Bioavailability and Patient Compliance Implications. Pharmaceutics 2021; 13:pharmaceutics13101591. [PMID: 34683884 PMCID: PMC8539558 DOI: 10.3390/pharmaceutics13101591] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/22/2021] [Accepted: 09/27/2021] [Indexed: 11/24/2022] Open
Abstract
There have been many efforts to improve oral drug bioavailability and therapeutic efficacy and patient compliance. A variety of controlled-release oral delivery systems have been developed to meet these needs. Gastroretentive drug delivery technologies have the potential to achieve retention of the dosage form in the upper gastrointestinal tract (GIT) that can be sufficient to ensure complete solubilisation of the drugs in the stomach fluids, followed by subsequent absorption in the stomach or proximal small intestine. This can be beneficial for drugs that have an “absorption window” or are absorbed to a different extent in various segments of the GIT. Therefore, gastroretentive technologies in tandem with controlled-release strategies could enhance both the therapeutic efficacy of many drugs and improve patient compliance through a reduction in dosing frequency. The paper reviews different gastroretentive drug delivery technologies and controlled-release strategies that can be combined and summarises examples of formulations currently in clinical development and commercially available gastroretentive controlled-release products. The different parameters that need to be considered and monitored during formulation development for these pharmaceutical applications are highlighted.
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Haimhoffer Á, Fenyvesi F, Lekli I, Béresová M, Bak I, Czagány M, Vasvári G, Bácskay I, Tóth J, Budai I. Preparation of Acyclovir-Containing Solid Foam by Ultrasonic Batch Technology. Pharmaceutics 2021; 13:pharmaceutics13101571. [PMID: 34683864 PMCID: PMC8541121 DOI: 10.3390/pharmaceutics13101571] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Revised: 09/19/2021] [Accepted: 09/23/2021] [Indexed: 02/08/2023] Open
Abstract
In recent years, the application of solid foams has become widespread. Solid foams are not only used in the aerospace field but also in everyday life. Although foams are promising dosage forms in the pharmaceutical industry, their usage is not prevalent due to decreased stability of the solid foam structure. These special dosage forms can result in increased bioavailability of drugs. Low-density floating formulations can also increase the gastric residence time of drugs; therefore, drug release will be sustained. Our aim was to produce a stable floating formula by foaming. Matrix components, PEG 4000 and stearic acid type 50, were selected with the criteria of low gastric irritation, a melting range below 70 °C, and well-known use in oral drug formulations. This matrix was melted at 54 °C in order to produce a dispersion of active substance and was foamed by different gases at atmospheric pressure using an ultrasonic homogenizer. The density of the molded solid foam was studied by the pycnometer method, and its structure was investigated by SEM and micro-CT. The prolonged drug release and mucoadhesive properties were proved in a pH 1.2 buffer. According to our experiments, a stable foam could be produced by rapid homogenization (less than 1 min) without any surfactant material.
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Affiliation(s)
- Ádám Haimhoffer
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (F.F.); (G.V.); (I.B.)
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, H-4032 Debrecen, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Ferenc Fenyvesi
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (F.F.); (G.V.); (I.B.)
| | - István Lekli
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (I.L.); (I.B.)
| | - Mónika Béresová
- Department of Medical Imaging, University of Debrecen, Nagyerdei Krt. 94, H-4032 Debrecen, Hungary;
| | - István Bak
- Department of Pharmacology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (I.L.); (I.B.)
| | - Máté Czagány
- Institute of Physical Metallurgy, Metal Forming and Nanotechnology, University of Miskolc, H-3515 Miskolc-Egyetemváros, Hungary;
| | - Gábor Vasvári
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (F.F.); (G.V.); (I.B.)
| | - Ildikó Bácskay
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary; (Á.H.); (F.F.); (G.V.); (I.B.)
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei St. 98, H-4032 Debrecen, Hungary
| | - Judit Tóth
- Department of Laboratory Medicine, Faculty of Medicine, University of Debrecen, Nagyerdei Krt. 98, H-4032 Debrecen, Hungary;
| | - István Budai
- Faculty of Engineering, University of Debrecen, Ótemető Str. 2-4, H-4028 Debrecen, Hungary
- Correspondence: ; Tel.: +36-202128618
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11
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Haimhoffer Á, Vasvári G, Trencsényi G, Béresová M, Budai I, Czomba Z, Rusznyák Á, Váradi J, Bácskay I, Ujhelyi Z, Fehér P, Vecsernyés M, Fenyvesi F. Process Optimization for the Continuous Production of a Gastroretentive Dosage Form Based on Melt Foaming. AAPS PharmSciTech 2021; 22:187. [PMID: 34155595 PMCID: PMC8217006 DOI: 10.1208/s12249-021-02066-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Accepted: 06/01/2021] [Indexed: 12/20/2022] Open
Abstract
Several drugs have poor oral bioavailability due to low or incomplete absorption which is affected by various effects as pH, motility of GI, and enzyme activity. The gastroretentive drug delivery systems are able to deal with these problems by prolonging the gastric residence time, while increasing the therapeutic efficacy of drugs. Previously, we developed a novel technology to foam hot and molten dispersions on atmospheric pressure by a batch-type in-house apparatus. Our aim was to upgrade this technology by a new continuous lab-scale apparatus and confirm that our formulations are gastroretentive. At first, we designed and built the apparatus and continuous production was optimized using a Box-Behnken experimental design. Then, we formulated barium sulfate-loaded samples with the optimal production parameters, which was suitable for in vivo imaging analysis. In vitro study proved the low density, namely 507 mg/cm3, and the microCT record showed high porosity with 40 μm average size of bubbles in the molten suspension. The BaSO4-loaded samples showed hard structure at room temperature and during the wetting test, the complete wetting was detected after 120 min. During the in vivo study, the X-ray taken showed the retention of the formulation in the rat stomach after 2 h. We can conclude that with our device low-density floating formulations were prepared with prolonged gastric residence time. This study provides a promising platform for marketed active ingredients with low bioavailability.
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Affiliation(s)
- Ádám Haimhoffer
- Department of Pharmaceutical Technology, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei St. 98, Debrecen, H-4032, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei St. 98, Debrecen, H-4032, Hungary
| | - Gábor Vasvári
- Department of Pharmaceutical Technology, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - György Trencsényi
- Department of Medical Imaging, University of Debrecen, Nagyerdei krt. 94, Debrecen, H-4032, Hungary
| | - Monika Béresová
- Department of Medical Imaging, University of Debrecen, Nagyerdei krt. 94, Debrecen, H-4032, Hungary
| | - István Budai
- Faculty of Engineering, University of Debrecen, Ótemető utca 2-4, Debrecen, H-4028, Hungary
| | - Zsuzsa Czomba
- Department of Pharmaceutical Technology, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - Ágnes Rusznyák
- Department of Pharmaceutical Technology, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
- Doctoral School of Pharmaceutical Sciences, University of Debrecen, Nagyerdei St. 98, Debrecen, H-4032, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei St. 98, Debrecen, H-4032, Hungary
| | - Judit Váradi
- Department of Pharmaceutical Technology, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - Ildikó Bácskay
- Department of Pharmaceutical Technology, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
- Institute of Healthcare Industry, University of Debrecen, Nagyerdei St. 98, Debrecen, H-4032, Hungary
| | - Zoltán Ujhelyi
- Department of Pharmaceutical Technology, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - Pálma Fehér
- Department of Pharmaceutical Technology, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - Miklós Vecsernyés
- Department of Pharmaceutical Technology, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary
| | - Ferenc Fenyvesi
- Department of Pharmaceutical Technology, University of Debrecen, Nagyerdei krt. 98, Debrecen, H-4032, Hungary.
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Moganti M, Shivakumar H. Oral raft forming in situ gelling system for site specific delivery of calcium. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2020.102113] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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13
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Moganti M, Nanjappa SH. Formulation and optimization of gastroretentive bilayer tablets of calcium carbonate using D-optimal mixture design. E-POLYMERS 2021. [DOI: 10.1515/epoly-2021-0008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Gastroretentive bilayer tablets of calcium carbonate (CC) were developed using D-optimal mixture design. The effect of formulation factors such as levels of HPMC K100 M (X1), sodium bicarbonate (X2), and HPMC E15 LV (X3) on responses like floating lag time (R1) and release of CC at 1 h (R2) and 6 h (R3) was elucidated. The optimized formulations developed by numerical optimization technique were found to have short floating lag time (2.85 ± 0.98 min), minimum burst release (27.02 ± 1.18%), and controlled yet near complete release (88.98 ± 2.75%) at 6 h. In vivo radiographic studies in rabbits indicated that optimized batch displayed a mean gastric retention time (GRT) of 5.5 ± 1 h which was significantly prolonged (P < 0.05) compared to the conventional tablets that displayed a GRT of less than 1 h. The studies proved that the gastroretentive tablets can be a promising platform to improve bioavailability of nutrients having absorption window in upper gastrointestinal tract.
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Affiliation(s)
- Manasa Moganti
- Department of Pharmaceutics, KLE College of Pharmacy , Bengaluru 560 010 , Karnataka , India
- Basic Science Research Center (Off Campus), KLE College of Pharmacy , Bengaluru 560 010 , Karnataka , India
| | - Shivakumar H. Nanjappa
- Department of Pharmaceutics, KLE College of Pharmacy , Bengaluru 560 010 , Karnataka , India
- Institute for Drug Delivery and Biomedical Research , Bengaluru 560086 , India
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Kothale D, Verma U, Dewangan N, Jana P, Jain A, Jain D. Alginate as Promising Natural Polymer for Pharmaceutical, Food, and Biomedical Applications. Curr Drug Deliv 2020; 17:755-775. [PMID: 32778024 DOI: 10.2174/1567201817666200810110226] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 01/10/2020] [Accepted: 03/30/2020] [Indexed: 12/17/2022]
Abstract
Alginates are biopolymers usually obtained from brown seaweed, brown algae (Ochrophyta,
Phaeophyceae), and bacteria (<i>Azatobacter vineland</i> and <i>Pseudomonas</i> species) belonging to the family
of polycationic copolymers. They are biocompatible, biodegradable, non-antigenic, and non-toxic biopolymer
with molecular mass ranges from 32,000-40,000 g/mol in commercial grades. These can be
used as edible films or coatings in food industries and also some natural or chemical additives could
be incorporated into them to modify their functional, mechanical, nutritional as well as organoleptic
properties. Due to their high viscosity and extraordinary shear-thinning effect, they can be used as
dietary fibers, thickening, gelling and stabilizing agents. Commercial alginates have vast applications
in the fields of biomedical engineering, biotechnology, environmental contaminants treatments, food
processing, and pharmaceuticals. Alginates can be used in wound dressings, bone regeneration,
neovascularization, protein delivery, cell delivery, theranostic agents, oral drug delivery, controlled
release systems, raft formulations, immobilization of biological agents and treatment of environmental
contaminants. Various carrier systems can be formulated by the use of alginates like hydrogel,
tablets, microcapsules, films, matrices, microspheres, liposomes, nanoparticles, beads, cochleate,
floating and supersaturated drug delivery systems. This review presents a broad range of promising
applications of alginates, and it can be a great interest to scientists and industries engaged in exploring
its hidden potential.
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Affiliation(s)
- Dhalendra Kothale
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar (M.P.) 470 003, India
| | - Utsav Verma
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar (M.P.) 470 003, India
| | - Nagesh Dewangan
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar (M.P.) 470 003, India
| | - Partha Jana
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar (M.P.) 470 003, India
| | - Ankit Jain
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar (M.P.) 470 003, India
| | - Dharmendra Jain
- Department of Pharmaceutical Sciences, Dr. Harisingh Gour University, Sagar (M.P.) 470 003, India
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Niaz T, Shabbir S, Noor T, Abbasi R, Imran M. Alginate-caseinate based pH-responsive nano-coacervates to combat resistant bacterial biofilms in oral cavity. Int J Biol Macromol 2020; 156:1366-1380. [DOI: 10.1016/j.ijbiomac.2019.11.177] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2019] [Revised: 11/19/2019] [Accepted: 11/20/2019] [Indexed: 01/09/2023]
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Alginate-based electrospun core/shell nanofibers containing dexpanthenol: A good candidate for wound dressing. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101708] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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17
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Dobrinčić A, Balbino S, Zorić Z, Pedisić S, Bursać Kovačević D, Elez Garofulić I, Dragović-Uzelac V. Advanced Technologies for the Extraction of Marine Brown Algal Polysaccharides. Mar Drugs 2020; 18:E168. [PMID: 32197494 PMCID: PMC7143672 DOI: 10.3390/md18030168] [Citation(s) in RCA: 91] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 03/11/2020] [Accepted: 03/15/2020] [Indexed: 12/22/2022] Open
Abstract
Over the years, brown algae bioactive polysaccharides laminarin, alginate and fucoidan have been isolated and used in functional foods, cosmeceutical and pharmaceutical industries. The extraction process of these polysaccharides includes several complex and time-consuming steps and the correct adjustment of extraction parameters (e.g., time, temperature, power, pressure, solvent and sample to solvent ratio) greatly influences the yield, physical, chemical and biochemical properties as well as their biological activities. This review includes the most recent conventional procedures for brown algae polysaccharides extraction along with advanced extraction techniques (microwave-assisted extraction, ultrasound assisted extraction, pressurized liquid extraction and enzymes assisted extraction) which can effectively improve extraction process. The influence of these extraction techniques and their individual parameters on yield, chemical structure and biological activities from the most current literature is discussed, along with their potential for commercial applications as bioactive compounds and drug delivery systems.
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Affiliation(s)
- Ana Dobrinčić
- Faculty of Food Technology & Biotechnology, University of Zagreb, Pierottijeva 6, 10 000 Zagreb, Croatia; (S.B.); (Z.Z.); (S.P.); (D.B.K.); (I.E.G.); (V.D.-U.)
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18
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Vasvári G, Haimhoffer Á, Horváth L, Budai I, Trencsényi G, Béresová M, Dobó-Nagy C, Váradi J, Bácskay I, Ujhelyi Z, Fehér P, Sinka D, Vecsernyés M, Fenyvesi F. Development and Characterisation of Gastroretentive Solid Dosage Form Based on Melt Foaming. AAPS PharmSciTech 2019; 20:290. [PMID: 31428895 PMCID: PMC6700043 DOI: 10.1208/s12249-019-1500-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2019] [Accepted: 08/01/2019] [Indexed: 11/30/2022] Open
Abstract
Dosage forms with increased gastric residence time are promising tools to increase bioavailability of drugs with narrow absorption window. Low-density floating formulations could avoid gastric emptying; therefore, sustained drug release can be achieved. Our aim was to develop a new technology to produce low-density floating formulations by melt foaming. Excipients were selected carefully, with the criteria of low gastric irritation, melting range below 70°C and well-known use in oral drug formulations. PEG 4000, Labrasol and stearic acid type 50 were used to create metronidazole dispersion which was foamed by air on atmospheric pressure using in-house developed apparatus at 53°C. Stearic acid was necessary to improve the foamability of the molten dispersion. Additionally, it reduced matrix erosion, thus prolonging drug dissolution and preserving hardness of the moulded foam. Labrasol as a liquid solubiliser can be used to increase drug release rate and drug solubility. Based on the SEM images, metronidazole in the molten foam remained in crystalline form. MicroCT scans with the electron microscopic images revealed that the foam has a closed-cell structure, where spherical voids have smooth inner wall, they are randomly dispersed, while adjacent voids often interconnected with each other. Drug release from all compositions followed Korsmeyer-Peppas kinetic model. Erosion of the matrix was the main mechanism of the release of metronidazole. Texture analysis confirmed that stearic acid plays a key role in preserving the integrity of the matrix during dissolution in acidic buffer. The technology creates low density and solid matrix system with micronsized air-filled voids.
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Bi YG, Lin ZT, Deng ST. Fabrication and characterization of hydroxyapatite/sodium alginate/chitosan composite microspheres for drug delivery and bone tissue engineering. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 100:576-583. [DOI: 10.1016/j.msec.2019.03.040] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 02/22/2019] [Accepted: 03/10/2019] [Indexed: 12/19/2022]
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Tripathi J, Thapa P, Maharjan R, Jeong SH. Current State and Future Perspectives on Gastroretentive Drug Delivery Systems. Pharmaceutics 2019; 11:pharmaceutics11040193. [PMID: 31010054 PMCID: PMC6523542 DOI: 10.3390/pharmaceutics11040193] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/07/2019] [Accepted: 04/17/2019] [Indexed: 01/09/2023] Open
Abstract
In recent years, many attempts have been made to enhance the drug bioavailability and therapeutic effectiveness of oral dosage forms. In this context, various gastroretentive drug delivery systems (GRDDS) have been used to improve the therapeutic efficacy of drugs that have a narrow absorption window, are unstable at alkaline pH, are soluble in acidic conditions, and are active locally in the stomach. In this review, we discuss the physiological state of the stomach and various factors that affect GRDDS. Recently applied gastrointestinal technologies such as expandable, superporous hydrogel; bio/mucoadhesive, magnetic, ion-exchange resin; and low- and high-density-systems have also been examined along with their merits and demerits. The significance of in vitro and in vivo evaluation parameters of various GRDDS is summarized along with their applications. Moreover, future perspectives on this technology are discussed to minimize the gastric emptying rate in both the fasted and fed states. Overall, this review may inform and guide formulation scientists in designing the GRDDS.
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Affiliation(s)
- Julu Tripathi
- College of Pharmacy, Dongguk University-Seoul, 32 Donggukro, Ilsandonggu, Goyang, Gyeonggi 10326, Korea.
| | - Prakash Thapa
- College of Pharmacy, Dongguk University-Seoul, 32 Donggukro, Ilsandonggu, Goyang, Gyeonggi 10326, Korea.
| | - Ravi Maharjan
- College of Pharmacy, Dongguk University-Seoul, 32 Donggukro, Ilsandonggu, Goyang, Gyeonggi 10326, Korea.
| | - Seong Hoon Jeong
- College of Pharmacy, Dongguk University-Seoul, 32 Donggukro, Ilsandonggu, Goyang, Gyeonggi 10326, Korea.
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Abbas G, Hanif M. Development and pharmacokinetic evaluation of alginate-pectin polymeric rafts forming tablets using box behnken design. Drug Dev Ind Pharm 2018; 44:2026-2037. [PMID: 30084289 DOI: 10.1080/03639045.2018.1508221] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Raft is an emerging drug delivery system, which is suitable for controlled release drug delivery and targeting. The present study aimed to evaluate the physico-chemical properties of raft, in vitro release of pantoprazole sodium sesquihydrate and conduct bioavailability studies. Box behnken design was used with three independent and dependent variables. Independent variables were sodium alginate (X1), pectin (X2) and hydroxypropyl methyl cellulose K100M (X3) while dependent variables were percentage drug release at 2 (Y2), 4 (Y4) and 8 h (Y8). The developed rafts were evaluated by their physical and chemical properties. Fourier transform infrared spectroscopy and differential scanning calorimetry were used to study the chemical interaction and thermal behaviour of drug with polymers. Alginate and pectin contents of R9 formulation were 99.28% and 97.29%, respectively, and acid neutralization capacity was 8.0. R9 formulation showed longer duration of neutralization and nature of raft was absorbent. The raft of R9 formulation showed 98.94% release of PSS at 8 h in simulated gastric fluid. Fourier transform infrared spectroscopy showed no chemical interaction and differential scanning calorimetry indicated endothermic peaks at 250 °C for pantoprazole sodium sesquihydrate. tmax for the test and reference formulations were 8 ± 2.345 h and 8 ± 2.305 h, respectively. Cmax of test and reference formulations were 46.026 ± 0.567 µg/mL and 43.026 ± 0.567 µg/mL, respectively. AUC(0-t) of the test and reference formulations were 472.115 ± 3.467 µg × h/mL and 456.105 ± 2.017 µg × h/mL, respectively. Raft forming system successfully delivered the drug in controlled manner and improved the bioavailability of drugs.
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Affiliation(s)
- Ghulam Abbas
- a Faculty of Pharmacy , Bahauddin Zakariya University , Multan , Pakistan.,b Faculty of Pharmaceutical Sciences , Government College University , Faisalabad , Pakistan
| | - Muhammad Hanif
- a Faculty of Pharmacy , Bahauddin Zakariya University , Multan , Pakistan
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Gong L, Yu M, Sun Y, Gao Y, An T, Zou M, Cheng G. Design and optimization of gastric floating sustained-release mini-tablets of alfuzosin hydrochloride based on a factorial design: in vitro/in vivo evaluation. Drug Dev Ind Pharm 2018; 44:1990-1999. [PMID: 30058391 DOI: 10.1080/03639045.2018.1506473] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The purpose of this research was to develop multiple-unit gastric floating mini-tablets and to evaluate the possibility of using these mini-tablets as a delivery system to improve the drug absorption for drugs with a narrow absorption window. Mini-tablets were prepared using hydroxypropyl methylcellulose (HPMC K100M) and carbopol 971P as release retarding agents and sodium bicarbonate (NaHCO3) as gas-forming agent. The properties of the prepared mini-tablets in terms of floating characteristic parameters and in vitro release were evaluated. Furthermore, in vivo gastric retention study in rats and in vivo pharmacokinetic study in rabbits of the optimized formulation were performed. The optimized mini-tablets containing 45% HPMC K100M, 15% stearyl alcohol, 13% carbopol 971P, and 12% NaHCO3 were found to float immediately within 1 min and duration more than 9 h. The in vivo gastric retention study results indicated that the mini-tablets could retain in the stomach for more than 6.67 h. Furthermore, the AUC0-t of the floating mini-tablets (6849.83 ± 753.80 h ng·mL-1) was significantly higher than that of marketed sustained-release tablets XATRAL®XL (4970.16 ± 924.60 h ng·mL-1). All these results illustrated that the gastric floating mini-tablets might be a promising drug delivery system for drugs with a narrow absorption window.
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Affiliation(s)
- Ling Gong
- a Department of Pharmaceutics, School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
| | - Miao Yu
- a Department of Pharmaceutics, School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
| | - Yanyan Sun
- a Department of Pharmaceutics, School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
| | - Ying Gao
- a Department of Pharmaceutics, School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
| | - Tong An
- a Department of Pharmaceutics, School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
| | - Meijuan Zou
- a Department of Pharmaceutics, School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
| | - Gang Cheng
- a Department of Pharmaceutics, School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , China
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Liu G, Li S, Yuan H, Hao M, Wurihan, Yun Z, Zhao J, Ma Y, Dai Y. Effect of sodium alginate on mouse ovary vitrification. Theriogenology 2018; 113:78-84. [DOI: 10.1016/j.theriogenology.2018.02.006] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2017] [Revised: 02/08/2018] [Accepted: 02/08/2018] [Indexed: 10/18/2022]
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Zwar E, Kemna A, Richter L, Degen P, Rehage H. Production, deformation and mechanical investigation of magnetic alginate capsules. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2018; 30:085101. [PMID: 29323659 DOI: 10.1088/1361-648x/aaa6f5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
In this article we investigated the deformation of alginate capsules in magnetic fields. The sensitivity to magnetic forces was realised by encapsulating an oil in water emulsion, where the oil droplets contained dispersed magnetic nanoparticles. We solved calcium ions in the aqueous emulsion phase, which act as crosslinking compounds for forming thin layers of alginate membranes. This encapsulating technique allows the production of flexible capsules with an emulsion as the capsule core. It is important to mention that the magnetic nanoparticles were stable and dispersed throughout the complete process, which is an important difference to most magnetic alginate-based materials. In a series of experiments, we used spinning drop techniques, capsule squeezing experiments and interfacial shear rheology in order to determine the surface Young moduli, the surface Poisson ratios and the surface shear moduli of the magnetically sensitive alginate capsules. In additional experiments, we analysed the capsule deformation in magnetic fields. In spinning drop and capsule squeezing experiments, water droplets were pressed out of the capsules at elevated values of the mechanical load. This phenomenon might be used for the mechanically triggered release of water-soluble ingredients. After drying the emulsion-filled capsules, we produced capsules, which only contained a homogeneous oil phase with stable suspended magnetic nanoparticles (organic ferrofluid). In the dried state, the thin alginate membranes of these particles were rather rigid. These dehydrated capsules could be stored at ambient conditions for several months without changing their properties. After exposure to water, the alginate membranes rehydrated and became flexible and deformable again. During this swelling process, water diffused back in the capsule. This long-term stability and rehydration offers a great spectrum of different applications as sensors, soft actuators, artificial muscles or drug delivery systems.
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Affiliation(s)
- Elena Zwar
- Physikalische Chemie II, TU Dortmund, 44227 Dortmund, Germany
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Floating tablets of minocycline hydrochloride: Formulation, in-vitro evaluation and optimization. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2017. [DOI: 10.1016/j.fjps.2017.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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26
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Hanif M, Abbas G. pH-responsive alginate-pectin polymeric rafts and their characterization. ADVANCES IN POLYMER TECHNOLOGY 2017. [DOI: 10.1002/adv.21808] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Muhammad Hanif
- Faculty of Pharmacy; Bahauddin Zakariya University Multan; Multan Pakistan
| | - Ghulam Abbas
- Faculty of Pharmacy; Bahauddin Zakariya University Multan; Multan Pakistan
- Faculty of Pharmaceutical Sciences; Government College University Faisalabad; Faisalabad Pakistan
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Diós P, Szigeti K, Budán F, Pócsik M, Veres DS, Máthé D, Pál S, Dévay A, Nagy S. Influence of barium sulfate X-ray imaging contrast material on properties of floating drug delivery tablets. Eur J Pharm Sci 2016; 95:46-53. [PMID: 27687639 DOI: 10.1016/j.ejps.2016.09.034] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2016] [Revised: 09/16/2016] [Accepted: 09/25/2016] [Indexed: 11/27/2022]
Abstract
The objective of the study was to reveal the influence of necessarily added barium sulfate (BaSO4) X-ray contrast material on floating drug delivery tablets. Based on literature survey, a chosen floating tablet composition was determined containing HPMC and carbopol 943P as matrix polymers. One-factor factorial design with five levels was created for evaluation of BaSO4 (X1) effects on experimental parameters of tablets including: floating lag time, total floating time, swelling-, erosion-, dissolution-, release kinetics parameters and X-ray detected volume changes of tablets. Applied concentrations of BaSO4 were between 0 and 20.0% resulting in remarkable alteration of experimental parameters related especially to flotation. Drastic deterioration of floating lag time and total floating time could be observed above 15.0% BaSO4. Furthermore, BaSO4 showed to increase the integrity of tablet matrix by reducing eroding properties. A novel evaluation of dissolutions from floating drug delivery systems was introduced, which could assess the quantity of drug dissolved from dosage form in floating state. In the cases of tablets containing 20.0% BaSO4, only the 40% of total API amount could be dissolved in floating state. In vitro fine resolution X-ray CT imagings were performed to study the volume change and the voxel distributions as a function of HU attenuations by histogram analysis of the images. X-ray detected relative volume change results did not show significant difference between samples. After 24h, all tablets containing BaSO4 could be segmented, which highlighted the fact that enough BaSO4 remained in the tablets for their identification.
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Affiliation(s)
- Péter Diós
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Rókus str. 2, H-7624 Pécs, Hungary.
| | - Krisztián Szigeti
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó utca 37-47, H-1094 Budapest, Hungary
| | - Ferenc Budán
- CROmed Translational Research Centers, Baross str. 91-95, H-1047 Budapest, Hungary; Department of Public Health Medicine, University of Pécs, Szigeti str. 12, H-7624 Pécs, Hungary
| | - Márta Pócsik
- CROmed Translational Research Centers, Baross str. 91-95, H-1047 Budapest, Hungary
| | - Dániel S Veres
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó utca 37-47, H-1094 Budapest, Hungary
| | - Domokos Máthé
- Department of Biophysics and Radiation Biology, Semmelweis University, Tűzoltó utca 37-47, H-1094 Budapest, Hungary; CROmed Translational Research Centers, Baross str. 91-95, H-1047 Budapest, Hungary
| | - Szilárd Pál
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Rókus str. 2, H-7624 Pécs, Hungary
| | - Attila Dévay
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Rókus str. 2, H-7624 Pécs, Hungary
| | - Sándor Nagy
- Institute of Pharmaceutical Technology and Biopharmacy, University of Pécs, Rókus str. 2, H-7624 Pécs, Hungary
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Abbas G, Hanif M, Khan MA. pH responsive alginate polymeric rafts for controlled drug release by using box behnken response surface design. Des Monomers Polym 2016; 20:1-9. [PMID: 29491774 PMCID: PMC5812168 DOI: 10.1080/15685551.2016.1231046] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2016] [Accepted: 08/19/2016] [Indexed: 12/11/2022] Open
Abstract
Aim of the present work was to develop alginate raft forming tablets for controlled release pantoprazole sodium sesquihydrate (PSS). Box behnken design was used to optimize 15 formulations with three independent and three dependent variables. Physical tests of all formulations were within pharmacopoeial limits. Raft was characterized by their strength, thickness, resilience, acid neutralizing capacity, floating lag time and total floating time. Raft strength, thickness and resilience of optimized formulation AR9 were 7.43 ± 0.019 g, 5.8 ± 0.245 cm and greater than 480 min, respectively. Buffering and neutralizing capacity were 11.2 ± 1.01 and 6.5 ± 0.56 meq, respectively. Dissolution studies were performed by using simulated gastric fluid pH 1.2 and cumulative percentage release of optimized formulation AR9 was found 98%. First order release kinetics were followed and non-fickian diffusion was observed as value of n was greater than 0.45 in korsmeyer-peppas model. PSS, polymers, tablets and rafts were further characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD) and differential scanning calorimetry (DSC). FTIR spectra of PSS, polymers and raft of optimized formulation AR9 showed peaks at 3223.09, 1688.17, 1586.67, 1302.64 and 1027.74 cm-1 due to -OH stretching, ester carbonyl group (C=O) stretching, existence of water and carboxylic group in raft, C-N stretching and -OH bending vibration showed no interaction between them. XRD showed diffraction lines indicates crystalline nature of PSS. DSC thermogram showed endothermic peaks at 250 °C for PSS. The developed raft was suitable for controlled release delivery of PSS.
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Affiliation(s)
- Ghulam Abbas
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan.,Faculty of Pharmaceutical Sciences, Government College University Faisalabad, Pakistan
| | - Muhammad Hanif
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
| | - Mahtab Ahmad Khan
- Faculty of Pharmacy, Bahauddin Zakariya University, Multan, Pakistan
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Abbasi S, Yousefi G, Ansari AA, Mohammadi-Samani S. Formulation and in vitro evaluation of a fast-disintegrating/sustained dual release bucoadhesive bilayer tablet of captopril for treatment of hypertension crises. Res Pharm Sci 2016; 11:274-83. [PMID: 27651807 PMCID: PMC5022375 DOI: 10.4103/1735-5362.189284] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Hypertension crisis is one of the main health problems and its effective treatment is of high importance. For this purpose, fast-disintegrating and sustained release formulations of captopril, as a drug of choice, were prepared using conventional mucoadhesive polymers hydroxypropyl methylcellulose (HPMC), sodium carboxymethyl cellulose (Na-CMC), hydroxypropyl cellulose (HPC), Carbopol 934 (CP934) and sodium alginate (Na-alg). The optimum sustained release formulations were selected based on mean dissolution time (MDT). The swellability and mucoadhesive properties of selected formulations were assessed and compared. A direct relationship between swelling and release rates/adhesiveness of sustained release formulations was observed. The results showed that formulations containing combination of CP934 and cellulose-based polymers had the highest swellability, sustainability and adhesion strength. These formulations prolonged drug release up to 8 h showing good fitness to Korsemeyer-Peppas model. Moreover, the adopted fast-disintegrating tablet could release up to 100% of drug within 3 min in oral pH. Finally, a dual fast-disintegrating/sustained release bucoadhesive bilayer tablet consisting of optimized formulations was prepared releasing 30% of the drug initially within 15 min and the remaining up to 8 h which could be considered as an appropriate formulation for the treatment of hypertension crises.
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Affiliation(s)
- Sahar Abbasi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Gholamhossein Yousefi
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Ali Asghar Ansari
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
| | - Soliman Mohammadi-Samani
- Department of Pharmaceutics, School of Pharmacy, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
- Center for Nanotechnology in Drug Delivery, Shiraz University of Medical Sciences, Shiraz, I.R. Iran
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Verma A, Dubey J, Hegde RR, Rastogi V, Pandit JK. Helicobacter pylori: past, current and future treatment strategies with gastroretentive drug delivery systems. J Drug Target 2016; 24:897-915. [DOI: 10.3109/1061186x.2016.1171326] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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31
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Alginate: Current Use and Future Perspectives in Pharmaceutical and Biomedical Applications. INT J POLYM SCI 2016. [DOI: 10.1155/2016/7697031] [Citation(s) in RCA: 241] [Impact Index Per Article: 30.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Over the last decades, alginates, natural multifunctional polymers, have increasingly drawn attention as attractive compounds in the biomedical and pharmaceutical fields due to their unique physicochemical properties and versatile biological activities. The focus of the paper is to describe biological and pharmacological activity of alginates and to discuss the present use and future possibilities of alginates as a tool in drug formulation. The recent technological advancements with using alginates, issues related to alginates suitability as matrix for three-dimensional tissue cultures, adjuvants of antibiotics, and antiviral agents in cell transplantation in diabetes or neurodegenerative diseases treatment, and an update on the antimicrobial and antiviral therapy of the alginate based drugs are also highlighted.
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