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Pistone M, Racaniello GF, Rizzi R, Iacobazzi RM, Arduino I, Lopalco A, Lopedota AA, Denora N. Direct cyclodextrin based powder extrusion 3D printing of budesonide loaded mini-tablets for the treatment of eosinophilic colitis in paediatric patients. Int J Pharm 2023; 632:122592. [PMID: 36626971 DOI: 10.1016/j.ijpharm.2023.122592] [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: 11/25/2022] [Revised: 01/04/2023] [Accepted: 01/05/2023] [Indexed: 01/08/2023]
Abstract
The purpose of this study was to combine direct powder extrusion (DPE) 3D printing and fluid bed coating techniques to create a budesonide (BD) loaded solid oral formulations for the treatment of eosinophilic colitis (EC) in paediatric patients. The preferred medication for EC treatment is BD, which has drawbacks due to its poor water solubility and low absorption. Additionally, since commercially available medications for EC treatment are created and approved for adult patients, administering them to children sometimes requires an off-label use and an impromptu handling, which can result in therapeutic ineffectiveness. The DPE 3D approach was investigated to create Mini-Tablets (MTs) to suit the swallowing, palatability, and dose flexibility control requirements needed by paediatric patients. Additionally, DPE 3D and the inclusion of hydroxypropyl-β-cyclodextrin in the initial powder mixture allowed for an improvement in the solubility and rate of BD dissolution in aqueous medium. Then, to accomplish a site-specific drug release at the intestinal level, MTs were coated with a layer of Eudragit FS 30D, an enteric polymer responsive at pH > 7.0 values. In vitro release experiments showed that film-coated MTs were suitable in terms of size and dose, enabling potential therapeutic customization and targeted delivery of BD to the colon.
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Affiliation(s)
- Monica Pistone
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari Aldo Moro, Orabona St. 4, 70125 Bari, Italy
| | | | - Rosanna Rizzi
- Institute of Crystallography-CNR, Amendola St. 122/o, 70126 Bari, Italy
| | - Rosa Maria Iacobazzi
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari Aldo Moro, Orabona St. 4, 70125 Bari, Italy
| | - Ilaria Arduino
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari Aldo Moro, Orabona St. 4, 70125 Bari, Italy
| | - Antonio Lopalco
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari Aldo Moro, Orabona St. 4, 70125 Bari, Italy
| | - Angela Assunta Lopedota
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari Aldo Moro, Orabona St. 4, 70125 Bari, Italy.
| | - Nunzio Denora
- Department of Pharmacy - Pharmaceutical Sciences, University of Bari Aldo Moro, Orabona St. 4, 70125 Bari, Italy.
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Trombino S, Curcio F, Poerio T, Pellegrino M, Russo R, Cassano R. Chitosan Membranes Filled with Cyclosporine A as Possible Devices for Local Administration of Drugs in the Treatment of Breast Cancer. Molecules 2021; 26:molecules26071889. [PMID: 33810514 PMCID: PMC8036521 DOI: 10.3390/molecules26071889] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 03/19/2021] [Accepted: 03/23/2021] [Indexed: 01/12/2023] Open
Abstract
The aim of this work is the design, preparation and characterization of membranes based on cyclosporine A (CsA) and chitosan carboxylate (CC) to be used as an implantable subcutaneous medical device for a prolonged therapeutic effect in the treatment of breast cancer. The choice to use CsA is due to literature data that have demonstrated its possible antitumor activity on different types of neoplastic cells. To this end, CsA was bound to CC through an amidation reaction to obtain a prodrug to be dispersed in a chitosan-based polymeric membrane. The reaction intermediates and the final product were characterized by Fourier transform infrared spectroscopy (FT-IR) and proton nuclear magnetic resonance (1H-NMR). Membranes were analyzed by differential scanning calorimetry (DSC) and scanning electron microscopy (SEM). The data obtained showed the effective formation of the amide bond between CsA and CC and the complete dispersion of CsA inside the polymeric membrane. Furthermore, preliminary tests, conducted on MDA-MB-231, a type of breast cancer cell line, have shown a high reduction in the proliferation of cancer cells. These results indicate the possibility of using the obtained membranes as an interesting strategy for the release of cyclosporin-A in breast cancer patients.
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Affiliation(s)
- Sonia Trombino
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy; (S.T.); (F.C.); (M.P.); (R.R.)
| | - Federica Curcio
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy; (S.T.); (F.C.); (M.P.); (R.R.)
| | - Teresa Poerio
- Institute on Membrane Technology (CNR-ITM), University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy;
| | - Michele Pellegrino
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy; (S.T.); (F.C.); (M.P.); (R.R.)
| | - Rossella Russo
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy; (S.T.); (F.C.); (M.P.); (R.R.)
| | - Roberta Cassano
- Department of Pharmacy and Health and Nutrition Sciences, University of Calabria, Arcavacata di Rende, 87036 Cosenza, Italy; (S.T.); (F.C.); (M.P.); (R.R.)
- Correspondence: ; Tel.: +39-984-493227
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Trombino S, Servidio C, Laganà AS, Conforti F, Marrelli M, Cassano R. Viscosified Solid Lipidic Nanoparticles Based on Naringenin and Linolenic Acid for the Release of Cyclosporine A on the Skin. Molecules 2020; 25:molecules25153535. [PMID: 32748846 PMCID: PMC7435943 DOI: 10.3390/molecules25153535] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 07/24/2020] [Accepted: 07/30/2020] [Indexed: 12/20/2022] Open
Abstract
Psoriasis is one of the most common human skin disorders. Although its pathogenesis is complex and not completely know, the hyperactivation of the immune system seem to have a key role. In this regard, among the most effective systemic therapeutics used in psoriasis, we find cyclosporine, an immunosuppressive medication. However, one of the major problems associated with the use of cyclosporine is the occurrence of systemic side effects such as nephrotoxicity, hypertension, etc. The present work fits in this context and its aim is the design of suitable platforms for cyclosporine topical release in psoriasis treatment. The main objective is to achieve local administration of cyclosporine in order to reduce its systemic absorption and, consequently, its side effects. In order to improve dermal penetration, solid lipid nanoparticles (SLNs) are used as carriers, due to their lipophilicity and occlusive properties, and naringenin and linolenic acid are chosen, due to their properties, as starting materials for SLNs design. In order to have dermatological formulations and further modulate drug release, SLNs are incorporated in several topical vehicles obtaining gels with different degree of lipophilicity. Potential applications for psoriasis treatment were evaluated by considering the encapsulation efficiency, release profiles, in vitro skin permeation, and anti-inflammatory effects.
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Notario-Pérez F, Martín-Illana A, Cazorla-Luna R, Ruiz-Caro R, Tamayo A, Rubio J, María-Dolores V. Mucoadhesive Vaginal Discs based on Cyclodextrin and Surfactants for the Controlled Release of Antiretroviral Drugs to Prevent the Sexual Transmission of HIV. Pharmaceutics 2020; 12:pharmaceutics12040321. [PMID: 32265431 PMCID: PMC7238131 DOI: 10.3390/pharmaceutics12040321] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2020] [Revised: 03/28/2020] [Accepted: 03/31/2020] [Indexed: 12/20/2022] Open
Abstract
The strategies for developing vaginal microbicides to protect women against human immunodeficiency virus (HIV) sexual transmission are constantly changing. Although the initial dosage forms required daily administration to offer effective protection, the trend then moved towards sustained-release dosage forms that require less frequency of administration in order to improve women's compliance with the treatment. Nevertheless, another possible strategy is to design on-demand products that can be used in a coitally-dependent manner and only need to be administered immediately before intercourse to offer protection. Vaginal discs based on freeze-dried hydroxypropylmethyl cellulose gels have been developed for this purpose, containing two surfactants, i.e., sodium dodecyl sulphate and polysorbate 60, alone or in combination with 2-hydroxypropyl-β-cyclodextrin, to achieve a formulation capable of incorporating both hydrophilic and lipophilic drugs. Several studies have been carried out to evaluate how the inclusion of these substances modifies the structure of gels (viscosity and consistency studies) and the porosimetry of the freeze-dried discs (scanning electron microscopy micrographs, mechanical properties, swelling behaviour). The drug release and mucoadhesive properties of the discs have also been evaluated with a view to their clinical application. The systems combining sodium dodecyl sulphate and 2-hydroxypropyl-β-cyclodextrin were found to be adequate for the vaginal administration of both Tenofovir and Dapivirine and also offer excellent mucoadhesion to vaginal tissue; these discs could therefore be an interesting option for a coitally-dependent administration to protect women against HIV transmission.
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Affiliation(s)
- Fernando Notario-Pérez
- Departamento de Farmacia Galénica y Tecnología Alimentaria, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040-Madrid, Spain; (F.N.-P.); (A.M.-I.); (R.C.-L.); (R.R.-C.)
| | - Araceli Martín-Illana
- Departamento de Farmacia Galénica y Tecnología Alimentaria, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040-Madrid, Spain; (F.N.-P.); (A.M.-I.); (R.C.-L.); (R.R.-C.)
| | - Raúl Cazorla-Luna
- Departamento de Farmacia Galénica y Tecnología Alimentaria, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040-Madrid, Spain; (F.N.-P.); (A.M.-I.); (R.C.-L.); (R.R.-C.)
| | - Roberto Ruiz-Caro
- Departamento de Farmacia Galénica y Tecnología Alimentaria, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040-Madrid, Spain; (F.N.-P.); (A.M.-I.); (R.C.-L.); (R.R.-C.)
| | - Aitana Tamayo
- Instituto de Cerámica y Vidrio, Consejo Superior de Investigaciones Científicas, Calle Kelsen 5, 28049-Madrid, Spain; (A.T.); (J.R.)
| | - Juan Rubio
- Instituto de Cerámica y Vidrio, Consejo Superior de Investigaciones Científicas, Calle Kelsen 5, 28049-Madrid, Spain; (A.T.); (J.R.)
| | - Veiga María-Dolores
- Departamento de Farmacia Galénica y Tecnología Alimentaria, Facultad de Farmacia, Universidad Complutense de Madrid, Plaza Ramón y Cajal s/n, 28040-Madrid, Spain; (F.N.-P.); (A.M.-I.); (R.C.-L.); (R.R.-C.)
- Correspondence: ; Tel.: +34-913-942091; Fax: +34-913-941736
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Polypseudorotaxanes of Pluronic® F127 with Combinations of α- and β-Cyclodextrins for Topical Formulation of Acyclovir. NANOMATERIALS 2020; 10:nano10040613. [PMID: 32230723 PMCID: PMC7221812 DOI: 10.3390/nano10040613] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 03/20/2020] [Accepted: 03/23/2020] [Indexed: 12/29/2022]
Abstract
Acyclovir (ACV) is one of the most used antiviral drugs for the treatment of herpes simplex virus infections and other relevant mucosal infections caused by viruses. Nevertheless, the low water solubility of ACV limits both its bioavailability and antiviral performance. The combination of block copolymer micelles and cyclodextrins (CDs) may result in polypseudorotaxanes with tunable drug solubilizing and gelling properties. However, the simultaneous addition of various CDs has barely been investigated yet. The aim of this work was to design and characterize ternary combinations of Pluronic® F127 (PF127), αCD and βCD in terms of polypseudorotaxane formation, rheological behavior, and ACV solubilization ability and controlled release. The formation of polypseudorotaxanes between PF127 and the CDs was confirmed by FT-IR spectroscopy, X-ray diffraction, and NMR spectroscopy. The effects of αCD/βCD concentration range (0–7% w/w) on copolymer (6.5% w/w) gel features were evaluated at 20 and 37 °C by rheological studies, resulting in changes of the copolymer gelling properties. PF127 with αCD/βCD improved the solubilization of ACV, maintaining the biocompatibility (hen’s egg test on the chorio-allantoic membrane). In addition, the gels were able to sustain acyclovir delivery. The formulation prepared with similar proportions of αCD and βCD provided a slower and more constant release. The results obtained suggest that the combination of Pluronic with αCD/βCD mixtures can be a valuable approach to tune the rheological features and drug release profiles from these supramolecular gels.
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Conceição J, Farto-Vaamonde X, Goyanes A, Adeoye O, Concheiro A, Cabral-Marques H, Sousa Lobo JM, Alvarez-Lorenzo C. Hydroxypropyl-β-cyclodextrin-based fast dissolving carbamazepine printlets prepared by semisolid extrusion 3D printing. Carbohydr Polym 2019; 221:55-62. [DOI: 10.1016/j.carbpol.2019.05.084] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2019] [Revised: 05/15/2019] [Accepted: 05/15/2019] [Indexed: 10/26/2022]
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Cyclodextrin-functionalized cellulose filter paper for selective capture of diclofenac. Carbohydr Polym 2019; 220:43-52. [DOI: 10.1016/j.carbpol.2019.05.055] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2019] [Revised: 04/29/2019] [Accepted: 05/18/2019] [Indexed: 11/22/2022]
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Jacob S, Nair AB. Cyclodextrin complexes: Perspective from drug delivery and formulation. Drug Dev Res 2018; 79:201-217. [PMID: 30188584 DOI: 10.1002/ddr.21452] [Citation(s) in RCA: 115] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 06/22/2018] [Accepted: 06/22/2018] [Indexed: 02/05/2023]
Abstract
Cyclodextrins (CDs) have been widely investigated as a unique pharmaceutical excipient for past few decades and is still explored for new applications. They are highly versatile oligosaccharides which possess multifunctional characteristics, and are mainly used to improve the physicochemical stability, solubility, dissolution rate, and bioavailability of drugs. Stability constant, factors affecting complexation, techniques to enhance complexation efficiency, the preparation methods for molecular inclusion complexes and release of guest molecules are discussed in brief. In addition, different CD derivatives and their pharmacokinetics are elaborated. Further, the significance of CD complex in aqueous solubility, dissolution and bioavailability, stability, and taste masking is explained. The recent advancement of CDs in developing various drug delivery systems is enlightened. Indeed, the potential of CDs by means of inclusion complex formation have widen the applicability of these materials in various drug delivery systems including ocular, osmotic, mucoadhesive, transdermal, nasal, and targeted delivery systems. Feasibility studies have been performed on the benefit of these cyclic oligomers as nanocarriers, a strategy that can modify the drugs with improved physicochemical properties. Studies also demonstrated the feasibility of CDs to self-assemble in the form of stable nanoaggregates, which may extend the scope of CDs in drug delivery to the continually expanding list of new drug entities.
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Affiliation(s)
- Shery Jacob
- Department of Pharmaceutical Sciences, College of Pharmacy, Gulf Medical University, Ajman, United Arab Emirates
| | - Anroop B Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa, Saudi Arabia
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9
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Nanda A, Sahoo RN, Pramanik A, Mohapatra R, Pradhan SK, Thirumurugan A, Das D, Mallick S. Drug-in-mucoadhesive type film for ocular anti-inflammatory potential of amlodipine: Effect of sulphobutyl-ether-beta-cyclodextrin on permeation and molecular docking characterization. Colloids Surf B Biointerfaces 2018; 172:555-564. [DOI: 10.1016/j.colsurfb.2018.09.011] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 08/31/2018] [Accepted: 09/04/2018] [Indexed: 12/14/2022]
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Taveira SF, Varela-Garcia A, Dos Santos Souza B, Marreto RN, Martin-Pastor M, Concheiro A, Alvarez-Lorenzo C. Cyclodextrin-based poly(pseudo)rotaxanes for transdermal delivery of carvedilol. Carbohydr Polym 2018; 200:278-288. [PMID: 30177168 DOI: 10.1016/j.carbpol.2018.08.017] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/30/2018] [Accepted: 08/05/2018] [Indexed: 01/10/2023]
Abstract
This work aimed to design supramolecular gels combining Soluplus or Solutol and alfa- and hydroxypropyl-β-cyclodextrin (α-CD, HPβ-CD) for carvedilol (CAR) transdermal delivery. Poly(pseudo)rotaxane formation (appearance, SEM, 1H NMR), drug solubilization, rheological properties and in vitro release were investigated. CAR-CD complexes were prepared in situ or by spray drying. For Solutol, poly(pseudo)rotaxanes were formed immediately after mixing with α-CD and did not influence CAR solubility. Differently, Soluplus poly(pseudo)rotaxanes took 24-48 h to be formed and CAR solubility decreased compared to Soluplus micelles. Soluplus 20% + α-CD (5-10%) showed higher G' and G'' but also faster CAR release than Solutol poly(pseudo)rotaxanes, which is explained by the different location of PEG chains in the two amphiphilic polymers. Faster drug release was achieved incorporating HPβ-CD or CAR-HPβ-CD spray-dried complexes. The results evidenced the versatility of the formulations in terms of rheological behavior and drug release patterns, which can be adjusted for CAR transdermal delivery.
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Affiliation(s)
- Stephânia Fleury Taveira
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy, Universidade Federal de Goiás (UFG), Rua 240, Setor Leste Universitário, 74605-170, Goiânia, GO, Brazil.
| | - Angela Varela-Garcia
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Bruno Dos Santos Souza
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy, Universidade Federal de Goiás (UFG), Rua 240, Setor Leste Universitário, 74605-170, Goiânia, GO, Brazil
| | - Ricardo Neves Marreto
- Laboratory of Nanosystems and Drug Delivery Devices (NanoSYS), School of Pharmacy, Universidade Federal de Goiás (UFG), Rua 240, Setor Leste Universitário, 74605-170, Goiânia, GO, Brazil
| | - Manuel Martin-Pastor
- Unidad de Resonancia Magnética Nuclear, RIAIDT, Edificio CACTUS, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Angel Concheiro
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacología, Farmacia y Tecnología Farmacéutica, R+DPharma Group (GI-1645), Facultad de Farmacia and Health Research Institute of Santiago de Compostela (IDIS), Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
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Synthesis and Evaluation of a Sodium Alginate-4-Aminosalicylic Acid Based Microporous Hydrogel for Potential Viscosupplementation for Joint Injuries and Arthritis-Induced Conditions. Mar Drugs 2017; 15:md15080257. [PMID: 28812999 PMCID: PMC5577611 DOI: 10.3390/md15080257] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Revised: 08/09/2017] [Accepted: 08/14/2017] [Indexed: 01/21/2023] Open
Abstract
A microporous hydrogel was developed using sodium alginate (alg) and 4-aminosalicylic acid (4-ASA). The synthesized hydrogel was characterized using various analytical techniques such as Fourier transform infrared spectroscopy (FTIR), Carbon-13 nuclear magnetic resonance (13C-NMR), X-ray powder diffraction (XRD), scanning electron microscopy (SEM), and differential scanning calorimetry (DSC). Additonal carboxyl and hydroxyl functional groups of 4-ASA provided significant lubrication and stress-triggered sol-gel transition to the conjugated hydrogel. In addition, cytotoxicity analysis was undertaken on the conjugated hydrogel using human dermal fibroblast-adult (HDFa) cells, displaying non-toxic characteristics. Drug release profiles displaying 49.6% in the first 8 h and 97.5% within 72 h, similar to the native polymer (42.8% in first 8 h and 90.1% within 72 h). Under applied external stimuli, the modified hydrogel displayed significant gelling properties and structure deformation/recovery behaviour, confirmed using rheological evaluation (viscosity and thixotropic area of 8095.3 mPas and 26.23%, respectively). The modified hydrogel, thus, offers great possibility for designing smart synovial fluids as a biomimetic aqueous lubricant for joint-related injuries and arthritis-induced conditions. In addtion, the combination of thixotropy, non-toxicity, and drug release capabilities enables potential viscosupplementation for clinical application.
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Electrospun Fibers of Cyclodextrins and Poly(cyclodextrins). Molecules 2017; 22:molecules22020230. [PMID: 28165381 PMCID: PMC6155744 DOI: 10.3390/molecules22020230] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 01/21/2017] [Accepted: 01/30/2017] [Indexed: 11/28/2022] Open
Abstract
Cyclodextrins (CDs) can endow electrospun fibers with outstanding performance characteristics that rely on their ability to form inclusion complexes. The inclusion complexes can be blended with electrospinnable polymers or used themselves as main components of electrospun nanofibers. In general, the presence of CDs promotes drug release in aqueous media, but they may also play other roles such as protection of the drug against adverse agents during and after electrospinning, and retention of volatile fragrances or therapeutic agents to be slowly released to the environment. Moreover, fibers prepared with empty CDs appear particularly suitable for affinity separation. The interest for CD-containing nanofibers is exponentially increasing as the scope of applications is widening. The aim of this review is to provide an overview of the state-of-the-art on CD-containing electrospun mats. The information has been classified into three main sections: (i) fibers of mixtures of CDs and polymers, including polypseudorotaxanes and post-functionalization; (ii) fibers of polymer-free CDs; and (iii) fibers of CD-based polymers (namely, polycyclodextrins). Processing conditions and applications are analyzed, including possibilities of development of stimuli-responsive fibers.
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Chejara DR, Mabrouk M, Badhe RV, Mulla JAS, Kumar P, Choonara YE, du Toit LC, Pillay V. A bio-injectable algin-aminocaproic acid thixogel with tri-stimuli responsiveness. Carbohydr Polym 2015; 135:324-33. [PMID: 26453884 DOI: 10.1016/j.carbpol.2015.08.097] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Revised: 08/19/2015] [Accepted: 08/28/2015] [Indexed: 11/19/2022]
Abstract
In this article a novel bio-injectable algin-aminocaproic acid (Alg-ACA) tri-stimuli responsive thixogel system is reported. The designed soft thixotrophic hydrogel (thixogel) was characterized using various analytical techniques such as FT-IR, NMR, SEM, AFM and DSC. The soft thixogel system was further investigated for stress responsiveness using different rheological studies which confirmed the thixotropic nature of the gel [Thixotropic area (Ar) of Alg-ACA (1:0.5), Alg-ACA (1:1) and Alg-ACA (1:2), were 23.5%, 43.1%, and 27.59%, respectively, which were higher than that of Na-Alg (2.08%)]. The thixogel also demonstrated temperature and ultrasonication responsiveness. This tri-stimuli responsive soft thixogel system was rendered flowable (fluid) on applying the described physical stimuli and recovered its "rigid" gel structure upon removal of the applied stimuli. This approach of synthesizing a thixogels may be applicable to a broad variety of other natural polymers and has the potential for use in biomedical applications.
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Affiliation(s)
- Dharmesh R Chejara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Mostafa Mabrouk
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa; Biomaterials Department, National Research Centre, 33 El-Bohouth St. (former El-Tahrir St.), P.O. 12622, Dokki, Giza, Egypt
| | - Ravindra V Badhe
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Jameel A S Mulla
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa; Department of Pharmaceutics, M.M.U. College of Pharmacy, Rajiv Gandhi University of Health Sciences, Bangalore, Karnataka, India
| | - Pradeep Kumar
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Yahya E Choonara
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Lisa C du Toit
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa
| | - Viness Pillay
- Wits Advanced Drug Delivery Platform Research Unit, Department of Pharmacy and Pharmacology, Faculty of Health Sciences, School of Therapeutics Sciences, University of the Witwatersrand, Johannesburg, 7 York Road, Parktown 2193, South Africa.
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García-González C, Jin M, Gerth J, Alvarez-Lorenzo C, Smirnova I. Polysaccharide-based aerogel microspheres for oral drug delivery. Carbohydr Polym 2015; 117:797-806. [DOI: 10.1016/j.carbpol.2014.10.045] [Citation(s) in RCA: 178] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Revised: 10/15/2014] [Accepted: 10/16/2014] [Indexed: 10/24/2022]
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15
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Simões SMN, Rey-Rico A, Concheiro A, Alvarez-Lorenzo C. Supramolecular cyclodextrin-based drug nanocarriers. Chem Commun (Camb) 2015; 51:6275-89. [DOI: 10.1039/c4cc10388b] [Citation(s) in RCA: 119] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Hosting of polymers, lipids and drug conjugates makes cyclodextrins suitable to prepare biocompatible, targetable and stimuli-responsive supramolecular drug nanocarriers.
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Affiliation(s)
- Susana M. N. Simões
- Faculty of Pharmacy
- University of Coimbra
- Coimbra
- Portugal
- Center for Neuroscience and Cell Biology
| | - Ana Rey-Rico
- Departamento de Farmacia y Tecnología Farmacéutica
- Facultad de Farmacia
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
| | - Angel Concheiro
- Departamento de Farmacia y Tecnología Farmacéutica
- Facultad de Farmacia
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
| | - Carmen Alvarez-Lorenzo
- Departamento de Farmacia y Tecnología Farmacéutica
- Facultad de Farmacia
- Universidad de Santiago de Compostela
- Santiago de Compostela
- Spain
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16
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Aloisio C, de Oliveira AG, Longhi M. Solubility and release modulation effect of sulfamerazine ternary complexes with cyclodextrins and meglumine. J Pharm Biomed Anal 2014; 100:64-73. [PMID: 25129645 DOI: 10.1016/j.jpba.2014.07.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 06/23/2014] [Accepted: 07/05/2014] [Indexed: 10/25/2022]
Abstract
This study investigated the effect on solubility and release of ternary complexes of sulfamerazine (SMR) with β-(βCD), methyl-(MβCD) and hydroxypropyl-β-cyclodextrin (HPβCD) using meglumine (MEG) as the ternary component. The combination of MEG with MβCD resulted the best approach, with an increased effect (29-fold) of the aqueous solubility of SMR. The mode of inclusion was supported by 2D NMR, which indicated that real ternary complexes were formed between SMR, MEG and MβCD or HPβCD. Solid state analysis was performed using Fourier-transform infrared spectroscopy (FT IR), differential scanning calorimetry (DSC) and powder X-ray diffraction (XRD), which demonstrated that different interactions occurred among SMR, MEG and MβCD or HPβCD in the ternary lyophilized systems. The ternary complexes with βCD and MβCD produced an additional retention effect on the release of SMR compared to the corresponding binary complexes, implying that they were clearly superior in terms of solubility and release modulation.
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Affiliation(s)
- Carolina Aloisio
- Unidad de Investigación y Desarrollo en Ciencia y Tecnología Farmacéutica (UNITEFA-CONICET), Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA Córdoba, Argentina; Departamento de Farmácia, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, Rodovia Araraquara-Jau km 1, 14800-900 Araraquara, SP, Brazil.
| | - Anselmo Gomes de Oliveira
- Departamento de Farmácia, Faculdade de Ciências Farmacêuticas, Universidade Estadual Paulista, Rodovia Araraquara-Jau km 1, 14800-900 Araraquara, SP, Brazil.
| | - Marcela Longhi
- Unidad de Investigación y Desarrollo en Ciencia y Tecnología Farmacéutica (UNITEFA-CONICET), Departamento de Farmacia, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria, X5000HUA Córdoba, Argentina.
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17
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Labib GS, Farid RM. Osteogenic effect of locally applied Pentoxyfilline gel:in vitroandin vivoevaluations. Drug Deliv 2014; 22:1094-1102. [DOI: 10.3109/10717544.2014.884193] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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18
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García-Fernández M, Tabary N, Martel B, Cazaux F, Oliva A, Taboada P, Concheiro A, Alvarez-Lorenzo C. Poly-(cyclo)dextrins as ethoxzolamide carriers in ophthalmic solutions and in contact lenses. Carbohydr Polym 2013; 98:1343-52. [DOI: 10.1016/j.carbpol.2013.08.003] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2013] [Revised: 07/29/2013] [Accepted: 08/01/2013] [Indexed: 11/15/2022]
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19
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Centkowska K, Sznitowska M. Modified-release ointment with nitroglycerin β-cyclodextrin inclusion complex for treatment of anal fissures. J Pharm Pharmacol 2013; 65:1463-72. [DOI: 10.1111/jphp.12120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 06/20/2013] [Indexed: 11/30/2022]
Abstract
Abstract
Objectives
The aim was to evaluate ointments for local treatment of anal fissures. Nitroglycerin (NTG) was complexed with β-cyclodextrin (β-CD) to provide prolonged NTG release, with the intention of decreasing systemic drug absorption and thus reducing side effects.
Methods
Gels, creams and anhydrous water-emulsifying (AWE) ointment with NTG-CD were compared with preparations containing uncomplexed NTG (diluted with crospovidone, NTG-cP). The in-vitro NTG release and ex-vivo skin absorption were studied.
Key findings
The prolonged-release ointment with the NTG-CD complex was formulated using AWE base or w/o cream (20% water); release of NTG from a hydrogel was very fast with both the complexed and uncomplexed forms. From the AWE ointment base, 16.4% or 4.5% of the total NTG dose was released after 6 h when NTG-cP or NTG-CD was incorporated, respectively. With the complexed form, NTG absorption to the skin after a 5-h application was 18.1 or 11.1 μg/g from AWE ointment or cream, respectively; absorption of the uncomplexed NTG was higher: 52.3 or 21.9 μg/g from AWE ointment and cream, respectively.
Conclusions
Complexation with β-CD results in prolonged release of NTG from AWE ointment and w/o cream, which was confirmed by the ex-vivo skin absorption results.
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Affiliation(s)
- Katarzyna Centkowska
- Department of Pharmaceutical Technology, Medical University of Gdansk, Gdansk, Poland
| | - Malgorzata Sznitowska
- Department of Pharmaceutical Technology, Medical University of Gdansk, Gdansk, Poland
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20
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Concheiro A, Alvarez-Lorenzo C. Chemically cross-linked and grafted cyclodextrin hydrogels: from nanostructures to drug-eluting medical devices. Adv Drug Deliv Rev 2013; 65:1188-203. [PMID: 23631979 DOI: 10.1016/j.addr.2013.04.015] [Citation(s) in RCA: 145] [Impact Index Per Article: 13.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2012] [Revised: 04/15/2013] [Accepted: 04/22/2013] [Indexed: 12/13/2022]
Abstract
The unique ability of cyclodextrins (CDs) to form inclusion complexes can be transmitted to polymeric networks in which CDs are chemically grafted or cross-linked. Combination of CDs and hydrogels in a single material leads to synergic properties: the hydrophilic network enhances biocompatibility and prevents dilution in the physiological medium increasing the stability of the inclusion complexes, while CDs finely tune the mechanical features and the stimuli-responsiveness and provide affinity-based regulation of drug loading and release. Therefore, CD-functionalized materials are opening new perspectives in pharmacotherapy, emerging as advanced delivery systems (DDS) for hydrophobic and hydrophilic drugs to be administered via almost any route. Medical devices (catheters, prosthesis, vascular grafts, bone implants) can also benefit from surface grafting or thermofixation of CDs. The present review focuses on the approaches tested to synthesize nano- to macro-size covalently cross-linked CD networks: i) direct cross-linking through condensation with di- or multifunctional reagents, ii) copolymerization of CD derivatives with acrylic/vinyl monomers, and iii) grafting of CDs to preformed medical devices. Examples of the advantages of having the CDs chemically bound among themselves and to substrates are provided and their applicability in therapeutics discussed.
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21
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Kutyła MJ, Boehm MW, Stokes JR, Shaw PN, Davies NM, McGeary RP, Tuke J, Ross BP. Cyclodextrin-crosslinked poly(acrylic acid): adhesion and controlled release of diflunisal and fluconazole from solid dosage forms. AAPS PharmSciTech 2013; 14:301-11. [PMID: 23307066 PMCID: PMC3581673 DOI: 10.1208/s12249-012-9903-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Accepted: 11/29/2012] [Indexed: 11/30/2022] Open
Abstract
The controlled release of diflunisal and fluconazole from tablets made of novel polymers, poly(acrylic acid) (PAA) crosslinked with either β-cyclodextrin (βCD) or hydroxypropyl-βCD (HPβCD), was investigated and Carbopol 934P (Carbopol) was used as a highly crosslinked PAA for comparison. Diflunisal strongly associates with βCD-PAA and HPβCD-PAA polymers (Ka of 486 and 6,055 M(-1) respectively); thus, it was physically mixed into the conjugates and also precomplexed to identify whether decomplexation has any influence on release kinetics. Fluconazole has poor complexing ability (Ka of 34 M(-1) with HPβCD-PAA); thus, it was only tested as a physical mixture. Swelling and adhesion studies were conducted on all tablet combinations and adhesivity of the CD-PAA polymer tablets was maintained. Diflunisal release was much slower from HPβCD-PAA tablets than from βCD-PAA, suggesting that a higher degree of complexation retards release. The precomplexed diflunisal release was also slower than the physically mixed diflunisal of the corresponding conjugate. The release closely followed zero-order kinetics for HPβCD-PAA, but was more sigmoidal for βCD-PAA and especially Carbopol. Conversely, poorly associating fluconazole released in almost exactly the same way across both polymers and Carbopol, indicating that the release kinetics of poorly associating drugs are not influenced by the presence of cyclodextrins. In view of the varying profiles and release rates shown with diflunisal for the different polymers, the fluconazole data support the concept that adequate complexation can indeed modulate the release kinetics of drugs.
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Affiliation(s)
- Marguerite J. Kutyła
- />School of Pharmacy, The University of Queensland, Brisbane, QLD 4072 Australia
| | - Michael W. Boehm
- />School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072 Australia
| | - Jason R. Stokes
- />School of Chemical Engineering, The University of Queensland, Brisbane, QLD 4072 Australia
| | - P. Nicholas Shaw
- />School of Pharmacy, The University of Queensland, Brisbane, QLD 4072 Australia
| | - Nigel M. Davies
- />School of Pharmacy, The University of Queensland, Brisbane, QLD 4072 Australia
| | - Ross P. McGeary
- />School of Pharmacy, The University of Queensland, Brisbane, QLD 4072 Australia
- />School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD 4072 Australia
| | - Jonathan Tuke
- />School of Mathematical Sciences, University of Adelaide, Adelaide, SA 5005 Australia
| | - Benjamin P. Ross
- />School of Pharmacy, The University of Queensland, Brisbane, QLD 4072 Australia
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Kutyła MJ, Lambert LK, Davies NM, McGeary RP, Shaw PN, Ross BP. Cyclodextrin-crosslinked poly(acrylic acid): Synthesis, physicochemical characterization and controlled release of diflunisal and fluconazole from hydrogels. Int J Pharm 2013; 444:175-84. [DOI: 10.1016/j.ijpharm.2013.01.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 12/13/2012] [Accepted: 01/02/2013] [Indexed: 10/27/2022]
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23
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Salústio PJ, Pontes P, Conduto C, Sanches I, Carvalho C, Arrais J, Marques HMC. Advanced technologies for oral controlled release: cyclodextrins for oral controlled release. AAPS PharmSciTech 2011; 12:1276-92. [PMID: 21948320 DOI: 10.1208/s12249-011-9690-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2010] [Accepted: 09/07/2011] [Indexed: 01/01/2023] Open
Abstract
Cyclodextrins (CDs) are used in oral pharmaceutical formulations, by means of inclusion complexes formation, with the following advantages for the drugs: (1) solubility, dissolution rate, stability, and bioavailability enhancement; (2) to modify the drug release site and/or time profile; and (3) to reduce or prevent gastrointestinal side effects and unpleasant smell or taste, to prevent drug-drug or drug-additive interactions, or even to convert oil and liquid drugs into microcrystalline or amorphous powders. A more recent trend focuses on the use of CDs as nanocarriers, a strategy that aims to design versatile delivery systems that can encapsulate drugs with better physicochemical properties for oral delivery. Thus, the aim of this work was to review the applications of the CDs and their hydrophilic derivatives on the solubility enhancement of poorly water-soluble drugs in order to increase their dissolution rate and get immediate release, as well as their ability to control (to prolong or to delay) the release of drugs from solid dosage forms, either as complexes with the hydrophilic (e.g., as osmotic pumps) and/or hydrophobic CDs. New controlled delivery systems based on nanotechnology carriers (nanoparticles and conjugates) have also been reviewed.
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Hossain MA, Ahmed SU, Plakogiannis FM. Effect of vehicle systems, pH and enhancers on the permeation of highly lipophilic aripiprazole from Carbopol 971P gel systems across human cadaver skin. Drug Dev Ind Pharm 2011; 38:323-30. [DOI: 10.3109/03639045.2011.602978] [Citation(s) in RCA: 8] [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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25
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García-González C, Alnaief M, Smirnova I. Polysaccharide-based aerogels—Promising biodegradable carriers for drug delivery systems. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.06.066] [Citation(s) in RCA: 371] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Use of 2-hydroxypropyl-β-cyclodextrin as adjuvant for enhancing encapsulation and release characteristics of asiaticoside within and from cellulose acetate films. Carbohydr Polym 2011. [DOI: 10.1016/j.carbpol.2011.02.023] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Palem CR, Kumar Battu S, Gannu R, Yamsani VV, Repka MA, Yamsani MR. Role of cyclodextrin complexation in felodipine-sustained release matrix tablets intended for oral transmucosal delivery:In vitroandex vivocharacterization. Pharm Dev Technol 2011; 17:321-32. [DOI: 10.3109/10837450.2010.535829] [Citation(s) in RCA: 12] [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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28
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Sanna V, Gavini E, Cossu M, Rassu G, Giunchedi P. Solid lipid nanoparticles (SLN) as carriers for the topical delivery of econazole nitrate: in-vitro characterization, ex-vivo and in-vivo studies. J Pharm Pharmacol 2010; 59:1057-64. [PMID: 17725847 DOI: 10.1211/jpp.59.8.0002] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Abstract
Abstract
Solid lipid nanoparticles (SLN) designed for topical administration of econazole nitrate (ECN), were prepared by o/w high-shear homogenization method using different ratios of lipid and drug (5:1 and 10:1). SLN were characterized in terms of particle size, morphology, encapsulation efficiency and crystalline structure. After incorporation of SLN into hydrogels, rheological measurements were performed, and ex-vivo drug permeation tests were carried out using porcine stratum corneum (SC). In-vivo study of percutaneous absorption of ECN as a function of application time and composition of gels was carried out by tape-stripping technique. Penetration tests of the drug from a conventional gel were performed as comparison. High-shear homogenization method resulted in a good technique for preparation of ECN-loaded SLN. Particles had a mean diameter of about 150 nm and a regular shape and smooth surface. The encapsulation efficiency values were about 100%. Ex-vivo tests showed that SLN were able to control the drug release through the SC; the release rate depended upon the lipid content on the nanoparticles. In-vivo studies demonstrated that SLN promoted a rapid penetration of ECN through the SC after 1 h and improved the diffusion of the drug in the deeper skin layers after 3 h of application compared with the reference gel.
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Affiliation(s)
- Vanna Sanna
- Dipartimento di Scienze del Farmaco, via Muroni 23/a, 07100 Sassari, Italy
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29
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Zugasti ME, Zornoza A, Goñi MDM, Isasi JR, Vélaz I, Martín C, Sánchez M, Martínez-Ohárriz MC. Influence of soluble and insoluble cyclodextrin polymers on drug release from hydroxypropyl methylcellulose tablets. Drug Dev Ind Pharm 2010; 35:1264-70. [PMID: 19555243 DOI: 10.1080/03639040902882306] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND The influence of beta-cyclodextrin (beta-CD) polymers on drug release from hydroxypropyl methylcellulose (HPMC) matrices has not been reported in the literature. AIM The influence of monomeric beta-CD and both soluble and insoluble beta-CD polymers on drug release from tablets containing either 30% or 50% hydroxypropyl methylcellulose has been studied using diflunisal (DF) as model drug. METHOD The DF-beta-CD inclusion complex (1:1 M) was prepared by coevaporation and characterised using X-ray diffraction, differential thermal analysis, and IR spectroscopy. The dissolution assays were performed according to the USP paddle method. RESULTS The incorporation of beta-CD in the complexed form increases drug release from hydroxypropyl methylcellulose tablets in comparison with the physical mixture because of the better solubilization of the drug. The soluble polymer promotes drug release to a higher extent than the physical mixture with monomeric beta-CD, but the insoluble polymer, which is itself a hydrogel, gives rise to the most retarded release profile, probably by retention of the drug in its structure. The formulations containing physical mixtures with either beta-CD or the soluble polymer present an optimum adjustment to zero-order release kinetics, and the inclusion complex followed non-Fickian diffusion according to the Korsmeyer-Peppas model. CONCLUSION The release profile of DF from a HPMC matrix can be modulated in different ways by the use of either monomeric or polymeric beta-CD.
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Affiliation(s)
- Maria Esther Zugasti
- Department of Pharmacy and Pharmaceutical Technology, University of Navarra, Pamplona, Spain
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30
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Baddeley TC, Wardell JL. Synthesis of Per- and Poly-Substituted Trehalose Derivatives: Studies of Properties Relevant to Their Use as Excipients for Controlled Drug Release. J Carbohydr Chem 2009. [DOI: 10.1080/07328300902887672] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Thomas C. Baddeley
- a Department of Chemistry , University of Aberdeen , Meston Walk, Old Aberdeen, AB24 3UE, Scotland
| | - James L. Wardell
- a Department of Chemistry , University of Aberdeen , Meston Walk, Old Aberdeen, AB24 3UE, Scotland
- b Centro de Desenvolvimento Tecnológico em Saúde (CDTS), Fundação Oswaldo Cruz (FIOCRUZ) , Casa Amarela, Campus de Manguinhos, Av. Brasil 4365, 21040-900, Rio de Janeiro, RJ, Brazil
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31
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Mruthyunjaya Swamy TM, Ramaraj B, Siddaramaiah. Thermal and morphological properties of SA/HPMC blends. J Appl Polym Sci 2009. [DOI: 10.1002/app.29738] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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32
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Salústio P, Feio G, Figueirinhas J, Pinto J, Cabral Marques H. The influence of the preparation methods on the inclusion of model drugs in a β-cyclodextrin cavity. Eur J Pharm Biopharm 2009; 71:377-86. [DOI: 10.1016/j.ejpb.2008.09.027] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2007] [Revised: 08/06/2008] [Accepted: 09/30/2008] [Indexed: 11/26/2022]
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Miro A, Rondinone A, Nappi A, Ungaro F, Quaglia F, La Rotonda MI. Modulation of release rate and barrier transport of Diclofenac incorporated in hydrophilic matrices: role of cyclodextrins and implications in oral drug delivery. Eur J Pharm Biopharm 2008; 72:76-82. [PMID: 19135532 DOI: 10.1016/j.ejpb.2008.12.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2008] [Revised: 12/09/2008] [Accepted: 12/11/2008] [Indexed: 01/12/2023]
Abstract
The aim of this work was to investigate how the incorporation of a hydrophilic cyclodextrin (CD) inside erodible hydrophilic matrices affects drug-release behavior and transport properties through artificial and biological membranes. To this purpose, Diclofenac (Dic) was incorporated in poly(ethyleneoxide) (PEO) matrices as poorly soluble free acid (DicH) or freely water-soluble sodium salt (DicNa) in the presence or absence of hydroxypropyl-beta-cyclodextrin (HP beta CD). Preliminary experiments demonstrated that HP beta CD increased Dic apparent solubility as a function of its amount in the solution and medium pH due to complex formation. Permeation of ionized Dic through porcine buccal mucosa gave higher values of J(SS) and K(p) as compared to silicon membranes and depended on the presence of HP beta CD. Incorporation of HP beta CD in PEO tablets resulted in an increase of release rate for both forms of Dic whereas cumulative drug flux through silicon membranes and porcine buccal mucosa was increased for DicH and decreased for DicNa. An interpretation of this behavior was attempted on the basis of the presence of a transport resistance occurring inside the hydrated gel matrix as modified by the presence of CD. In conclusion, this study has demonstrated that the use of CDs in hydrophilic matrices intended for oral drug delivery should be rationalized since their modulator effect relies not only on drug-dissolution rate but also on environment where drug release occurs (aqueous medium, membrane interface).
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Affiliation(s)
- Agnese Miro
- Department of Pharmaceutical and Toxicological Chemistry, University of Naples Federico II, Naples, Italy
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34
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Jug M, Bećirević-Laćan M. Development of a Cyclodextrin-Based Nasal Delivery System for Lorazepam. Drug Dev Ind Pharm 2008; 34:817-26. [DOI: 10.1080/03639040801926063] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Andrews GP, Jones DS, Diak OA, McCoy CP, Watts AB, McGinity JW. The manufacture and characterisation of hot-melt extruded enteric tablets. Eur J Pharm Biopharm 2008; 69:264-73. [DOI: 10.1016/j.ejpb.2007.11.001] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2007] [Revised: 11/01/2007] [Accepted: 11/06/2007] [Indexed: 10/22/2022]
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36
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Sertaconazole-HPβCD-pluronic F127 solid inclusion complexes: characterization and effect on drug solubility. J INCL PHENOM MACRO 2007. [DOI: 10.1007/s10847-006-9240-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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37
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Siemoneit U, Schmitt C, Alvarez-Lorenzo C, Luzardo A, Otero-Espinar F, Concheiro A, Blanco-Méndez J. Acrylic/cyclodextrin hydrogels with enhanced drug loading and sustained release capability. Int J Pharm 2006; 312:66-74. [PMID: 16464549 DOI: 10.1016/j.ijpharm.2005.12.046] [Citation(s) in RCA: 87] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2005] [Revised: 11/28/2005] [Accepted: 12/28/2005] [Indexed: 11/16/2022]
Abstract
The influence of the proportion of acrylamidomethyl-gamma-cyclodextrin (gamma-CD-NMA) on loading and release of the hydrophobic triamcinolone acetonide (TA) and the hydrophilic propranolol (PR) by acrylic acid hydrogels was evaluated. gamma-CD-NMA was synthesized by condensation of gamma-cyclodextrin (gamma-CD) with N-(hydroxymethyl) acrylamide. Hydrogels were prepared with gamma-CD-NMA and sodium acrylate (3 M or 4 M), using N,N'-methylen(bisacrylamide) (BIS) as cross-linker, by free radical polymerization into glass moulds of 2 mm wide and were cut as discs (10 mm diameter). gamma-CD-NMA did not modify the pH-dependent swelling of the hydrogels, but significantly increased the swelling degree in the 40:60 ethanol:water, medium in which TA can be dissolved. Hydrogels prepared with gamma-CD-NMA above 5% (w/w of total monomers) showed a remarkably higher capacity to load TA, e.g., 33 mg/g dry hydrogel versus 0.6 mg/g dry hydrogel without gamma-CD-NMA. This is explained by the formation of 1:1 inclusion complexes of TA with gamma-CD mers that overcomes the lack of interactions with the acrylic groups of the network. The release of TA in water, 0.1 N HCl, or pH 6.8 phosphate buffer was sustained for at least 24 h, whatever the pH and the composition of the medium used. In contrast, loading of PR from the water solutions was greater for hydrogels prepared with 3 M acrylate than with 4 M acrylate, irrespective to their content in gamma-CD-NMA, and in less than 2 h ca. 80% PR was released. The lower affinity of PR for the gamma-CD cavities, compared to the strong intensity of the electrostatic interactions with the acrylic acid groups, explains why the incorporation of gamma-CD-NMA did not increased the loading and control release capacity of the hydrogels of this hydrophilic drug. In summary, the copolymerisation of CD with acrylic monomers can provide highly hydrophilic pH-sensitive networks which load large amounts of hydrophobic drugs and release them in a sustained way.
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Affiliation(s)
- Ulf Siemoneit
- Departamento de Farmacia y Tecnología Farmacéutica, Facultad de Farmacia, Universidad de Santiago de Compostela, 15782-Santiago de Compostela, Spain
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38
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Young CR, Dietzsch C, Cerea M, Farrell T, Fegely KA, Rajabi-Siahboomi A, McGinity JW. Physicochemical characterization and mechanisms of release of theophylline from melt-extruded dosage forms based on a methacrylic acid copolymer. Int J Pharm 2006; 301:112-20. [PMID: 16055285 DOI: 10.1016/j.ijpharm.2005.05.025] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2004] [Revised: 05/05/2005] [Accepted: 05/11/2005] [Indexed: 11/30/2022]
Abstract
The purpose of the current study was to investigate the physicochemical properties of melt-extruded dosage forms based on Acryl-EZE and to determine the influence of gelling agents on the mechanisms and kinetics of drug release from thermally processed matrices. Acryl-EZE is a pre-mixed excipient blend based on a methacrylic acid copolymer that is optimized for film-coating applications. Powder blends containing theophylline, Acryl-EZE, triethyl citrate and an optional gelling agent, Methocel K4M Premium (hydroxypropyl methylcellulose, HPMC, hypromellose 2208) or Carbopol 974P (carbomer), were thermally processed using a Randcastle single-screw extruder. The physical and chemical stability of materials during processing was determined using thermal gravimetric analysis and HPLC. The mechanism of drug release was determined using the Korsmeyer-Peppas model and the hydration and erosion of tablets during the dissolution studies were investigated. The excipient blends were physically and chemically stable during processing, and the resulting dosage forms exhibited pH-dependent dissolution properties. Extrusion of blends containing HPMC or carbomer changed the mechanism and kinetics of drug release from the thermally processed dosage forms. At concentrations of 5% or below, carbomer was more effective than HPMC at extending the duration of theophylline release from matrix tablets. Furthermore, carbomer containing tablets were stable upon storage for 3 months at 40 degrees C/75% RH. Thus, hot-melt extrusion was an effective process for the preparation of controlled release matrix systems based on Acryl-EZE.
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Affiliation(s)
- Christopher R Young
- Drug Dynamics Institute, College of Pharmacy, The University of Texas at Austin, Austin, TX 78712, USA.
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39
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Ribeiro L, Ferreira DC, Veiga FJB. In vitro controlled release of vinpocetine-cyclodextrin-tartaric acid multicomponent complexes from HPMC swellable tablets. J Control Release 2004; 103:325-39. [PMID: 15763617 DOI: 10.1016/j.jconrel.2004.12.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2004] [Revised: 11/24/2004] [Accepted: 12/02/2004] [Indexed: 11/15/2022]
Abstract
The objective of this study was to investigate the effect of multicomponent complexation (MCC) of vinpocetine (VP), a poorly soluble base-type drug, with beta-cyclodextrin (betaCD), sulfobutylether beta-cyclodextrin (SBEbetaCD), tartaric acid (TA), polyvinylpyrrolidone (PVP) and hydroxypropylmethylcellulose (HPMC), on the design of controlled release hydrophilic HPMC tablets and to evaluate their in vitro release profiles by a pH gradient method. Multicomponent complexation led to enhanced dissolution properties of VP both in simulated gastric and intestinal fluids, and became possible the development of HPMC tablet formulations with more independent pH dissolution profiles. Drug release process was investigated experimentally using USP apparatus 3 and by means of model-independent parameters. Responses studied included similarity of dissolution profiles, time for 60% of the drug to dissolve (T(60%)), percent of VP released after 7 h (PD(7 h)) and the dissolution efficiency parameter at 12 h (DE(12 h)). Influence of multicomponent complexation was proved to increase the release of VP from HPMC tablets and superior PD(7 h) and DE(12 h) values were obtained in formulations containing VP-CD-TA complexes. Results supported the use of HPMC matrices to provide a useful tool in retarding the release of VP and that dissolution characteristics of the drug may be modulated by multicomponent complexation in these delivery systems, suggesting an improvement on VP bioavailability.
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Affiliation(s)
- Laura Ribeiro
- Laboratory of Pharmaceutical Technology, Faculty of Pharmacy, University of Coimbra, 3000-004 Coimbra, Portugal.
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