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D’Abbrunzo I, Procida G, Perissutti B. Praziquantel Fifty Years on: A Comprehensive Overview of Its Solid State. Pharmaceutics 2023; 16:27. [PMID: 38258039 PMCID: PMC10821272 DOI: 10.3390/pharmaceutics16010027] [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: 11/22/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
This review discusses the entire progress made on the anthelmintic drug praziquantel, focusing on the solid state and, therefore, on anhydrous crystalline polymorphs, amorphous forms, and multicomponent systems (i.e., hydrates, solvates, and cocrystals). Despite having been extensively studied over the last 50 years, new polymorphs and the greater part of their cocrystals have only been identified in the past decade. Progress in crystal engineering science (e.g., the use of mechanochemistry as a solid form screening tool and more strategic structure-based methods), along with the development of analytical techniques, including Synchrotron X-ray analyses, spectroscopy, and microscopy, have furthered the identification of unknown crystal structures of the drug. Also, computational modeling has significantly contributed to the prediction and design of new cocrystals by considering structural conformations and interactions energy. Whilst the insights on praziquantel polymorphs discussed in the present review will give a significant contribution to controlling their formation during manufacturing and drug formulation, the detailed multicomponent forms will help in designing and implementing future praziquantel-based functional materials. The latter will hopefully overcome praziquantel's numerous drawbacks and exploit its potential in the field of neglected tropical diseases.
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Affiliation(s)
| | | | - Beatrice Perissutti
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy (G.P.)
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Jo J, Kim JY, Yun JJ, Lee YJ, Jeong YIL. β-Cyclodextrin Nanophotosensitizers for Redox-Sensitive Delivery of Chlorin e6. Molecules 2023; 28:7398. [PMID: 37959817 PMCID: PMC10648776 DOI: 10.3390/molecules28217398] [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: 10/10/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/15/2023] Open
Abstract
The aim of this study is to prepare redox-sensitive nanophotosensitizers for the targeted delivery of chlorin e6 (Ce6) against cervical cancer. For this purpose, Ce6 was conjugated with β-cyclodextrin (bCD) via a disulfide bond, creating nanophotosensitizers that were fabricated for the redox-sensitive delivery of Ce6 against cancer cells. bCD was treated with succinic anhydride to synthesize succinylated bCD (bCDsu). After that, cystamine was attached to the carboxylic end of bCDsu (bCDsu-ss), and the amine end group of bCDsu-ss was conjugated with Ce6 (bCDsu-ss-Ce6). The chemical composition of bCDsu-ss-Ce6 was confirmed with 1H and 13C NMR spectra. bCDsu-ss-Ce6 nanophotosensitizers were fabricated by a dialysis procedure. They formed small particles with an average particle size of 152.0 ± 23.2 nm. The Ce6 release rate from the bCDsu-ss-Ce6 nanophotosensitizers was accelerated by the addition of glutathione (GSH), indicating that the bCDsu-ss-Ce6 nanophotosensitizers have a redox-sensitive photosensitizer delivery capacity. The bCDsu-ss-Ce6 nanophotosensitizers have a low intrinsic cytotoxicity against CCD986Sk human skin fibroblast cells as well as Ce6 alone. However, the bCDsu-ss-Ce6 nanophotosensitizers showed an improved Ce6 uptake ratio, higher reactive oxygen species (ROS) production, and phototoxicity compared to those of Ce6 alone. GSH addition resulted in a higher Ce6 uptake ratio, ROS generation, and phototoxicity than Ce6 alone, indicating that the bCDsu-ss-Ce6 nanophotosensitizers have a redox-sensitive biological activity in vitro against HeLa human cervical cancer cells. In a tumor xenograft model using HeLa cells, the bCDsu-ss-Ce6 nanophotosensitizers efficiently accumulated in the tumor rather than in normal organs. In other words, the fluorescence intensity in tumor tissues was significantly higher than that of other organs, while Ce6 alone did not specifically target tumor tissue. These results indicated a higher anticancer activity of bCDsu-ss-Ce6 nanophotosensitizers, as demonstrated by their efficient inhibition of the growth of tumors in an in vivo animal tumor xenograft study.
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Affiliation(s)
- Jaewon Jo
- Gwangju Center, Korea Basic Science Institute, Gwangju 61186, Republic of Korea; (J.J.); (J.Y.K.)
- School of Chemical Engineering, Chonnam National University, Gwangju 61186, Republic of Korea
| | - Ji Yoon Kim
- Gwangju Center, Korea Basic Science Institute, Gwangju 61186, Republic of Korea; (J.J.); (J.Y.K.)
| | - Je-Jung Yun
- Research Center for Environmentally Friendly Agricultural Life Sciences, Jeonnam Bioindustry Foundation, Jeonnam 58275, Republic of Korea;
| | - Young Ju Lee
- Gwangju Center, Korea Basic Science Institute, Gwangju 61186, Republic of Korea; (J.J.); (J.Y.K.)
| | - Young-IL Jeong
- Department of Dental Materials, College of Dentistry, Chosun University, Gwangju 61452, Republic of Korea
- Tyros Biotechnology Inc., 75 Kneeland St. 14 Floors, Boston, MA 02111, USA
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Supramolecular Host–Guest Assemblies of [M6Cl14]2–, M = Mo, W, Clusters with γ-Cyclodextrin for the Development of CLUSPOMs. INORGANICS 2023. [DOI: 10.3390/inorganics11020077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/10/2023] Open
Abstract
Host–guest assemblies open up opportunities for developing novel functional CLUSPOM multicomponent systems based on transition metal clusters (CLUS), polyoxometalates (POMs) and macrocyclic organic ligands. In water–ethanol solution γ-cyclodextrin (γ-CD) interacts with halide metal clusters [M6Cl14]2– (M = Mo, W) to form sandwich-type structures. The supramolecular association between the clusters and CDs, however, remains weak in solution, and the interactions are not strong enough to prevent the hydrolysis of the inorganic guest. Although analysis of the resulting crystal structures reveals inclusion complexation, 1H NMR experiments in solution show no specific affinity between the two components. The luminescent properties of the host–guest compounds in comparison with the initial cluster complexes are also studied to evaluate the influence of CD.
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Huang Z, Staufenbiel S, Bodmeier R. Combination of co-crystal and nanocrystal techniques to improve the solubility and dissolution rate of poorly soluble drugs. Pharm Res 2022; 39:949-961. [PMID: 35552985 PMCID: PMC9160134 DOI: 10.1007/s11095-022-03243-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 03/21/2022] [Indexed: 11/24/2022]
Abstract
Purpose Solubility and dissolution rate are essential for the oral absorption and bioavailability of poorly soluble drugs. The aim of this study was to prepare nano-co-crystals by combination of nanocrystal and co-crystal technologies, and investigate its effect, in situ, on increased kinetic solubility and dissolution rate. Methods Co-crystals of itraconazole-fumaric acid, itraconazole-succinic acid, indomethacin-saccharin and indomethacin-nicotinamide were prepared and nano-sized by wet milling. The particle size and solid state of the co-crystals were characterized by optical microscope, LD, PCS, DSC and XRPD before and after milling. Results 300-450 nm sized nano-co-crystals with a stable physical solid state were successfully prepared. Nano-co-crystals exhibited a lower crystallinity reduction than nanocrystals after wet milling. The particle size effect on the kinetic solubility of co-crystals was analysed for macro-, micro- and nano-co-crystals with in situ kinetic solubility studies. The maximum kinetic solubility of nano-co-crystals increased with excess conditions until a plateau. The highest increase was obtained with itraconazole-succinic acid nano-co-crystals with a kinetic solubility of 263.5 ± 3.9 μg/mL which was 51.5 and 6.6 times higher than the solubility of raw itraconazole and itraconazole-succinic acid co-crystal. Conclusions The synergistic effect of nanocrystals and co-crystals with regard to increased kinetic solubility and dissolution rate was proven. The combination of the advantages of nanocrystals and co-crystals is a promising formulation strategy to increase both the solubility and dissolution rate of poorly soluble drugs. Supplementary Information The online version contains supplementary material available at 10.1007/s11095-022-03243-9.
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Affiliation(s)
- Zun Huang
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, 12169, Berlin, Germany
| | - Sven Staufenbiel
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, 12169, Berlin, Germany
| | - Roland Bodmeier
- College of Pharmacy, Freie Universität Berlin, Kelchstr. 31, 12169, Berlin, Germany.
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Ossai EC, Eze AA, Ogugofor MO. Plant-derived compounds for the treatment of schistosomiasis: Improving efficacy via nano-drug delivery. Niger J Clin Pract 2022; 25:747-764. [DOI: 10.4103/njcp.njcp_1322_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Špehar TK, Pocrnić M, Klarić D, Bertoša B, Čikoš A, Jug M, Padovan J, Dragojević S, Galić N. Investigation of Praziquantel/Cyclodextrin Inclusion Complexation by NMR and LC-HRMS/MS: Mechanism, Solubility, Chemical Stability, and Degradation Products. Mol Pharm 2021; 18:4210-4223. [PMID: 34670371 PMCID: PMC8564759 DOI: 10.1021/acs.molpharmaceut.1c00716] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Praziquantel (PZQ) is a biopharmaceutical classification system (BCS) class II anthelmintic drug characterized by poor solubility and a bitter taste, both of which can be addressed by inclusion complexation with cyclodextrins (CD). In this work, a comprehensive investigation of praziquantel/cyclodextrin (PZQ/CD) complexes was conducted by means of UV-vis spectroscopy, spectrofluorimetry, NMR spectroscopy, liquid chromatography-high-resolution mass spectrometry (LC-HRMS/MS), and molecular modeling. Phase solubility studies revealed that among four CDs tested, the randomly methylated β-CD (RMβCD) and the sulfobutylether sodium salt β-CD (SBEβCD) resulted in the highest increase in PZQ solubility (approximately 16-fold). The formation of 1:1 inclusion complexes was confirmed by HRMS, NMR, and molecular modeling. Both cyclohexane and the central pyrazino ring, as well as an aromatic part of PZQ are included in the CD central cavity through several different binding modes, which exist simultaneously. Furthermore, the influence of CDs on PZQ stability was investigated in solution (HCl, NaOH, H2O2) and in the solid state (accelerated degradation, photostability) by ultra-high-performance liquid chromatography-diode array detection-tandem mass spectrometry (UPLC-DAD/MS). CD complexation promoted new degradation pathways of the drug. In addition to three already known PZQ degradants, seven new degradation products were identified (m/z 148, 215, 217, 301, 327, 343, and 378) and their structures were proposed based on HRMS/MS data. Solid complexes were prepared by mechanochemical activation, a solvent-free and ecologically acceptable method.
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Affiliation(s)
| | - Marijana Pocrnić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia
| | - David Klarić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia
| | - Branimir Bertoša
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia
| | - Ana Čikoš
- Institute Ruđer Bošković, Bijenička cesta 54, 10 000 Zagreb, Croatia
| | - Mario Jug
- Department of Pharmaceutical Technology, Faculty of Pharmacy and Biochemistry, University of Zagreb, A. Kovačića 1, 10 000 Zagreb, Croatia
| | - Jasna Padovan
- Fidelta Ltd., Prilaz baruna Filipovića 29, 10 000 Zagreb, Croatia
| | | | - Nives Galić
- Department of Chemistry, Faculty of Science, University of Zagreb, Horvatovac 102a, 10 000 Zagreb, Croatia
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Preparation of inclusion complex of praziquantel with 2-hydroxypropyl-β-cyclodextrin and pharmacokinetic property improvement. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2021.103307] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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9
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Said AR, Zoghroban HS, Arafa MF, Mahmoud SS, El Maghraby GM. Nanostructured lipid carriers for enhanced in vitro and in vivo schistosomicidal activity of praziquantel: effect of charge. Drug Dev Ind Pharm 2021; 47:663-672. [PMID: 33826458 DOI: 10.1080/03639045.2021.1908339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
WHO considers praziquantel (PZQ) as the drug of choice for treatment of Schistosoma mansoni infection but this requires high dose due to poor solubility and first pass metabolism. The aim of this work was to optimize nanostructured lipid carriers (NLCs) for enhanced PZQ oral delivery. The optimization involved testing the effect of surface charge of NLCs. NLCs comprised precirol ATO as solid lipid with oleic acid, Span 60 and Tween 80 as liquid components. Dicetyl phosphate and stearyl amine were the negative and positive charging agents, respectively. NLCs were prepared by microemulsification technique and were characterized. The schistosomicidal activity of PZQ loaded NLCs was monitored in vitro and in vivo using infected mice. PZQ showed high entrapment efficiency in all types of NLCs (ranged from 93.97 to 96.29%) with better PZQ loading in standard NLCs. This was clarified by thermal analysis which reflected displacement of PZQ by charging agents. In vitro schistosomicidal study revealed the superiority of PZQ loaded positively charged NLCs (LC50 and LC95 equal 0.147 and 0.193 µg/ml respectively) with traditional and negatively charged NLCs being inferior to simple PZQ solution after short incubation period. Scanning electron micrographs showed that PZQ loaded positively charged NLCs resulted in more intense ultrastructural changes in worms. The superiority of positively charged NLCs was confirmed by in vivo assessment as they showed better improvement in histopathological features of the liver of the infected mice compared with other formulations. The study introduced positively charged NLCs as promising carriers for oral delivery of PZQ.
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Affiliation(s)
- Abdelrahman R Said
- Department of Pharmaceutics and pharmaceutical technology, school of pharmacy, Badr University in Cairo (BUC), Badr city, Egypt
| | - Hager S Zoghroban
- Department of Medical Parasitology, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Mona F Arafa
- Department of Pharmaceutical Technology, College of Pharmacy, University of Tanta, Tanta, Egypt
| | - Soheir S Mahmoud
- Department of Parasitology, Theodor Bilharz Research Institute, Giza, Egypt
| | - Gamal M El Maghraby
- Department of Pharmaceutical Technology, College of Pharmacy, University of Tanta, Tanta, Egypt
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Praziquantel-Clays as Accelerated Release Systems to Enhance the Low Solubility of the Drug. Pharmaceutics 2020; 12:pharmaceutics12100914. [PMID: 32987673 PMCID: PMC7598598 DOI: 10.3390/pharmaceutics12100914] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Revised: 09/16/2020] [Accepted: 09/21/2020] [Indexed: 11/16/2022] Open
Abstract
Praziquantel is an antiparasitic drug indicated for the treatment of the schistosomiasis disease. This drug has very low aqueous solubility, requiring high oral doses for its administration which gives rise to side effects, therapeutic noncompliance and the appearance of resistant forms of the parasite. Clay minerals, like sepiolite and montmorillonite, are innocuous, non-toxic, biocompatible and low-cost excipients. Additionally, clays have high adsorbent properties that allow them to encapsulate drugs in nanometric spaces present in the channels in the case of the sepiolite or between the layers in the case of the montmorillonite. The interactions between the drug and clay minerals are studied experimentally with the strategy for preparing interactions products in organic solvents (ethanol, acetonitrile and dichloromethane) so that the interaction will be more effective and will be enhanced the aqueous solubility of praziquantel. The results showed that in the interaction products, the drug interacted with both clay minerals, which produced the loss of the crystallinity of the drug demonstrated by different techniques. This led to a significant increase in the dissolution rate of the praziquantel in all the interaction products in the simulated gastrointestinal tract media, except for the praziquantel–montmorillonite product prepared in dichloromethane that presented a controlled release in acid medium. Moreover, in vitro cytotoxicity and cell cycle studies were performed in the interaction products prepared with ethanol. The interaction product with sepiolite was biocompatible with the HTC116 line cells, and it did not produce alterations in the cell cycle. However, interaction products with montmorillonite did not produce cell death, but they showed affectation and damage of cells in the cell cycle study at the highest concentration tested (20–100 µM). Therefore, the different organic solvents used are adequate for the improvement of the biopharmaceutical profile of praziquantel. Drug–clay interaction products, specifically with sepiolite, showed very promising results in which new accelerated oral release systems of the praziquantel were obtained.
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Wagle SR, Kovacevic B, Walker D, Ionescu CM, Shah U, Stojanovic G, Kojic S, Mooranian A, Al-Salami H. Alginate-based drug oral targeting using bio-micro/nano encapsulation technologies. Expert Opin Drug Deliv 2020; 17:1361-1376. [PMID: 32597249 DOI: 10.1080/17425247.2020.1789587] [Citation(s) in RCA: 28] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
INTRODUCTION Oral delivery is the most common administrated drug delivery path. However, oral administration of lipophilic drugs has some limitations: they have poor dose-response due to low and varied dissolution kinetics and oral bioavailability with sub-optimal dissolution within the aqueous gastrointestinal microenvironment. Therefore, there is a need for robust formulating methods that protect the drug until it reaches to its optimum absorption site, allowing its optimum pharmacological effects via increasing its intestinal permeation and bioavailability. AREA COVERED Herein, we provide insights on orally administered lipophilic drug delivery systems. The detailed description of the obstacles associated with the oral bioavailability of lipophilic drugs are also discussed. Following this, techniques to overcome these obstacles with much emphasis on optimal safety and efficacy are addressed. Newly designed ionic vibrational jet flow encapsulation technology has enormous growth in lipophilic drug delivery systems, which is discussed thereafter. EXPERT OPINION Researchers have shown interest in drug's encapsulation. A combination of drug-bile acid and microencapsulation methods can be one promising strategy to improve the oral delivery of lipophilic drugs. However, the most critical aspect of this approach is the selection of bile acids, polymer, and encapsulation technology.
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Affiliation(s)
- Susbin Raj Wagle
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia, Australia
| | - Bozica Kovacevic
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia, Australia
| | - Daniel Walker
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia, Australia
| | - Corina Mihaela Ionescu
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia, Australia
| | - Umar Shah
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia, Australia.,School of Molecular and Life Sciences, Faculty of Science and Engineering, Curtin University , Perth, WA, Australia
| | - Goran Stojanovic
- Faculty of Technical Sciences, University of Novi Sad , Novi Sad, Serbia
| | - Sanja Kojic
- Faculty of Technical Sciences, University of Novi Sad , Novi Sad, Serbia
| | - Armin Mooranian
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia, Australia
| | - Hani Al-Salami
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University , Perth, Western Australia, Australia
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Kumari N, Ghosh A. Cocrystallization: Cutting Edge Tool for Physicochemical Modulation of Active Pharmaceutical Ingredients. Curr Pharm Des 2020; 26:4858-4882. [PMID: 32691702 DOI: 10.2174/1381612826666200720114638] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 05/16/2020] [Indexed: 02/08/2023]
Abstract
Cocrystallization is a widely accepted and clinically relevant technique that has prospered very well over the past decades to potentially modify the physicochemical properties of existing active pharmaceutic ingredients (APIs) without compromising their therapeutic benefits. Over time, it has become an integral part of the pre-formulation stage of drug development because of its ability to yield cocrystals with improved properties in a way that other traditional methods cannot easily achieve. Cocrystals are solid crystalline materials composed of two or more than two molecules which are non-covalently bonded in the same crystal lattice. Due to the continuous efforts of pharmaceutical scientists and crystal engineers, today cocrystals have emerged as a cutting edge tool to modulate poor physicochemical properties of APIs such as solubility, permeability, bioavailability, improving poor mechanical properties and taste masking. The success of cocrystals can be traced back by looking at the number of products that are getting regulatory approval. At present, many cocrystals have obtained regulatory approval and they successfully made into the market place followed by a fair number of cocrystals that are currently in the clinical phases. Considering all these facts about cocrystals, the formulation scientists have been inspired to undertake more relevant research to extract out maximum benefits. Here in this review cocrystallization technique will be discussed in detail with respect to its background, different synthesis approaches, synthesis mechanism, application and improvements in drug delivery systems and its regulatory perspective.
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Affiliation(s)
- Nimmy Kumari
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi - 835215, Jharkhand, India
| | - Animesh Ghosh
- Department of Pharmaceutical Sciences and Technology, Birla Institute of Technology, Mesra, Ranchi - 835215, Jharkhand, India
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Cesari A, Uccello Barretta G, Kirschner KN, Pappalardo M, Basile L, Guccione S, Russotto C, Lauro MR, Cavaliere F, Balzano F. Interaction of natural flavonoid eriocitrin with β-cyclodextrin and hydroxypropyl-β-cyclodextrin: an NMR and molecular dynamics investigation. NEW J CHEM 2020. [DOI: 10.1039/d0nj02022b] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Eriocitrin's binding to β-cyclodextrin and hydroxypropyl-β-cyclodextrin was elucidated using mono/bidimensional NMR experiments and all-atom MD (Glycam06).
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Affiliation(s)
- Andrea Cesari
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- I-56124 Pisa
- Italy
| | | | - Karl N. Kirschner
- Department of Computer Science
- University of Applied Sciences Bonn-Rhein-Sieg
- D-53757 Sankt Augustin
- Germany
| | - Matteo Pappalardo
- Department of Drug Sciences
- University of Catania
- I-95125 Catania
- Italy
| | - Livia Basile
- Department of Drug Sciences
- University of Catania
- I-95125 Catania
- Italy
| | | | - Clizia Russotto
- Department of Drug Sciences
- University of Catania
- I-95125 Catania
- Italy
| | | | - Francesca Cavaliere
- Molecular Modelling Laboratory
- Department of Food and Drug
- University of Parma
- I-43124 Parma
- Italy
| | - Federica Balzano
- Department of Chemistry and Industrial Chemistry
- University of Pisa
- I-56124 Pisa
- Italy
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Yamasaki K, Taguchi K, Nishi K, Otagiri M, Seo H. Enhanced dissolution and oral bioavailability of praziquantel by emulsification with human serum albumin followed by spray drying. Eur J Pharm Sci 2019; 139:105064. [PMID: 31491499 DOI: 10.1016/j.ejps.2019.105064] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 08/08/2019] [Accepted: 09/02/2019] [Indexed: 10/26/2022]
Abstract
The goal of this study was to enhance the oral bioavailability of praziquantel through its conjugation with human serum albumin (HSA). Praziquantel-HSA particles were produced by spray drying an emulsion of an aqueous solution of HSA and a solution of praziquantel in oil. The particles were agglomerates of multiple smooth corrugated particles containing amorphous praziquantel nearly equivalent to the theoretical doses. The solubility of praziquantel in an aqueous medium was enhanced in both the produced particles and the physical mixture. In addition, the dissolution rate in an aqueous medium was enhanced in the case of particles, but not in a physical mixture. Thus, the inclusion of HSA by emulsification followed by spray drying appeared to contribute to the enhanced dissolution rate. In a pharmacokinetic study, the maximum plasma concentration (Cmax) and the area under the concentration-time curve (AUC) for the produced particles (HSA/praziquantel = 1/1 w/w) were approximately two times higher than the corresponding values for raw praziquantel. This increased oral bioavailability of the particles was considered to be due to the enhanced dissolution rate. This process for producing praziquantel-HSA particles could be useful in terms of improving the oral bioavailability of the other hydrophobic drugs.
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Affiliation(s)
- Keishi Yamasaki
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan.
| | - Kazuaki Taguchi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; Keio University Faculty of Pharmacy, 1-5-30 Shibakoen, Minato-ku, Tokyo, Japan
| | - Koji Nishi
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
| | - Masaki Otagiri
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
| | - Hakaru Seo
- Faculty of Pharmaceutical Sciences, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan; DDS Research Institute, Sojo University, 4-22-1 Ikeda, Nishi-ku, Kumamoto, Japan
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Borrego-Sánchez A, Sánchez-Espejo R, Albertini B, Passerini N, Cerezo P, Viseras C, Sainz-Díaz CI. Ground Calcium Carbonate as a Low Cost and Biosafety Excipient for Solubility and Dissolution Improvement of Praziquantel. Pharmaceutics 2019; 11:pharmaceutics11100533. [PMID: 31615087 PMCID: PMC6835254 DOI: 10.3390/pharmaceutics11100533] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2019] [Revised: 10/07/2019] [Accepted: 10/12/2019] [Indexed: 01/22/2023] Open
Abstract
Calcium carbonate is an abundant mineral with several advantages to be a successful carrier to improve oral bioavailability of poorly water-soluble drugs, such as praziquantel. Praziquantel is an antiparasitic drug classified in group II of the Biopharmaceutical Classification System hence characterized by high-permeability and low-solubility. Therefore, the dissolution rate is the limiting factor for the gastrointestinal absorption that contributes to the low bioavailability. Consequently, the therapeutic dose of the praziquantel must be high and big tablets and capsules are required, which are difficult to swallow, especially for pediatric and elderly patients. Mixtures of praziquantel and calcium carbonate using solid-solid physical mixtures and solid dispersions were prepared and characterized using several techniques (X-ray diffraction differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy, laser diffraction, Fourier transform infrared and Raman spectroscopies). Solubility of these formulations evidenced that the solubility of praziquantel-calcium carbonate interaction product increased in physiological media. In vitro dissolution tests showed that the interaction product increased the dissolution rate of the drug in acidic medium. Theoretical models were studied to understand this experimental behavior. Cytotoxicity and cell cycle studies were performed, showing that praziquantel-calcium carbonate physical mixture and interaction product were biocompatible with the HTC116 cells, because it did not produce a decrease in cell viability or alterations in the cell cycle.
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Affiliation(s)
- Ana Borrego-Sánchez
- Instituto Andaluz de Ciencias de la Tierra (CSIC-University of Granada), Av. de las Palmeras 4, 18100 Granada, Spain.
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain.
| | - Rita Sánchez-Espejo
- Instituto Andaluz de Ciencias de la Tierra (CSIC-University of Granada), Av. de las Palmeras 4, 18100 Granada, Spain.
| | - Beatrice Albertini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy.
| | - Nadia Passerini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy.
| | - Pilar Cerezo
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain.
| | - César Viseras
- Instituto Andaluz de Ciencias de la Tierra (CSIC-University of Granada), Av. de las Palmeras 4, 18100 Granada, Spain.
- Department of Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, University of Granada, Campus de Cartuja s/n, 18071 Granada, Spain.
| | - C Ignacio Sainz-Díaz
- Instituto Andaluz de Ciencias de la Tierra (CSIC-University of Granada), Av. de las Palmeras 4, 18100 Granada, Spain.
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16
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Arumugam SP, Balakrishnan SB, Ganesan V, Munisamy M, Kuppu SV, Narayanan V, Baskaralingam V, Jeyachandran S, Thambusamy S. In-vitro dissolution and microbial inhibition studies on anticancer drug etoposide with β-cyclodextrin. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 102:96-105. [DOI: 10.1016/j.msec.2019.04.033] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Revised: 04/04/2019] [Accepted: 04/12/2019] [Indexed: 01/28/2023]
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17
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Rashid M, Malik MY, Singh SK, Chaturvedi S, Gayen JR, Wahajuddin M. Bioavailability Enhancement of Poorly Soluble Drugs: The Holy Grail in Pharma Industry. Curr Pharm Des 2019; 25:987-1020. [DOI: 10.2174/1381612825666190130110653] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2018] [Accepted: 01/24/2019] [Indexed: 02/07/2023]
Abstract
Background:
Bioavailability, one of the prime pharmacokinetic properties of a drug, is defined as the
fraction of an administered dose of unchanged drug that reaches the systemic circulation and is used to describe
the systemic availability of a drug. Bioavailability assessment is imperative in order to demonstrate whether the
drug attains the desirable systemic exposure for effective therapy. In recent years, bioavailability has become
the subject of importance in drug discovery and development studies.
Methods:
A systematic literature review in the field of bioavailability and the approaches towards its enhancement
have been comprehensively done, purely focusing upon recent papers. The data mining was performed
using databases like PubMed, Science Direct and general Google searches and the collected data was exhaustively
studied and summarized in a generalized manner.
Results:
The main prospect of this review was to generate a comprehensive one-stop summary of the numerous
available approaches and their pharmaceutical applications in improving the stability concerns, physicochemical
and mechanical properties of the poorly water-soluble drugs which directly or indirectly augment their bioavailability.
Conclusion:
The use of novel methods, including but not limited to, nano-based formulations, bio-enhancers,
solid dispersions, lipid-and polymer-based formulations which provide a wide range of applications not only
increases the solubility and permeability of the poorly bioavailable drugs but also improves their stability, and
targeting efficacy. Although, these methods have drastically changed the pharmaceutical industry demand for the
newer potential methods with better outcomes in the field of pharmaceutical science to formulate various dosage
forms with adequate systemic availability and improved patient compliance, further research is required.
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Affiliation(s)
- Mamunur Rashid
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Mohd Yaseen Malik
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Sandeep K. Singh
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Swati Chaturvedi
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
| | - Jiaur R Gayen
- Pharmaceutics and Pharmacokinetics Division, CSIR-CDRI, Lucknow, India
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18
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Kim AV, Shelepova EA, Selyutina OY, Meteleva ES, Dushkin AV, Medvedev NN, Polyakov NE, Lyakhov NZ. Glycyrrhizin-Assisted Transport of Praziquantel Anthelmintic Drug through the Lipid Membrane: An Experiment and MD Simulation. Mol Pharm 2019; 16:3188-3198. [PMID: 31198045 DOI: 10.1021/acs.molpharmaceut.9b00390] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Praziquantel (PZQ) is one of the most widespread anthelmintic drugs. However, the frequent insufficient application of PZQ after oral administration is associated with its low solubility, penetration rate, and bioavailability. In the present study, the permeation of PZQ through a 1,2-dioleoyl- sn-glycero-3-phosphocholine (DOPC) membrane was investigated to probe glycyrrhizin-assisted transport. Glycyrrhizin (or glycyrrhizic acid, GA), a natural saponin, shows the ability to enhance the therapeutic activity of various drugs when it is used as a drug delivery system. However, the molecular mechanism of this effect is still under debate. In the present study, the transport rate was measured experimentally by a parallel artificial membrane permeation assay (PAMPA) and molecular dynamics (MD) simulation with DOPC lipid bilayers. The formation of the noncovalent supramolecular complex of PZQ with disodium salt of GA (Na2GA) in an aqueous solution was proved by the NMR relaxation technique. PAMPA experiments show a strong increase in the amount of the penetrating praziquantel molecules in comparison with a saturated aqueous solution of pure drug used as a control. MD simulation of PZQ penetration through the bilayer demonstrates an increase in permeability into the membrane in the presence of a glycyrrhizin molecule. A decrease in the free energy barrier in the middle of the lipid bilayer was obtained, associated with the hydrogen bond between PZQ and GA. Also, GA reduces the local bilayer surface resistance to penetration of PZQ by rearranging the surface lipid headgroups. This study clarifies the mechanism of increasing the drug's bioavailability in the presence of glycyrrhizin.
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Affiliation(s)
- Alexandra V Kim
- Institute of Chemical Kinetics and Combustion , Institutskaya Street, 3 , 630090 , Novosibirsk , Russia.,Novosibirsk State University , 630090 Novosibirsk , Russia
| | - Ekaterina A Shelepova
- Institute of Chemical Kinetics and Combustion , Institutskaya Street, 3 , 630090 , Novosibirsk , Russia.,Novosibirsk State University , 630090 Novosibirsk , Russia
| | - Olga Yu Selyutina
- Institute of Chemical Kinetics and Combustion , Institutskaya Street, 3 , 630090 , Novosibirsk , Russia
| | - Elizaveta S Meteleva
- Institute of Solid State Chemistry and Mechanochemistry , 630128 Novosibirsk , Russia
| | - Alexander V Dushkin
- Institute of Solid State Chemistry and Mechanochemistry , 630128 Novosibirsk , Russia
| | - Nikolai N Medvedev
- Institute of Chemical Kinetics and Combustion , Institutskaya Street, 3 , 630090 , Novosibirsk , Russia.,Novosibirsk State University , 630090 Novosibirsk , Russia
| | - Nikolay E Polyakov
- Institute of Chemical Kinetics and Combustion , Institutskaya Street, 3 , 630090 , Novosibirsk , Russia.,Institute of Solid State Chemistry and Mechanochemistry , 630128 Novosibirsk , Russia
| | - Nikolay Z Lyakhov
- Institute of Solid State Chemistry and Mechanochemistry , 630128 Novosibirsk , Russia
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19
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Patel RD, Raval MK, Bagathariya AA, Sheth NR. Functionality improvement of Nimesulide by eutectic formation with nicotinamide: Exploration using temperature-composition phase diagram. ADV POWDER TECHNOL 2019. [DOI: 10.1016/j.apt.2019.02.010] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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20
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Meteleva ES, Chistyachenko YS, Suntsova LP, Khvostov MV, Polyakov NE, Selyutina OY, Tolstikova TG, Frolova TS, Mordvinov VA, Dushkin AV, Lyakhov NZ. Disodium salt of glycyrrhizic acid – A novel supramolecular delivery system for anthelmintic drug praziquantel. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.01.014] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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21
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Ziaee A, Albadarin AB, Padrela L, Femmer T, O'Reilly E, Walker G. Spray drying of pharmaceuticals and biopharmaceuticals: Critical parameters and experimental process optimization approaches. Eur J Pharm Sci 2019; 127:300-318. [DOI: 10.1016/j.ejps.2018.10.026] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 10/01/2018] [Accepted: 10/30/2018] [Indexed: 10/27/2022]
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22
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Praziquantel systems with improved dissolution rate obtained by high pressure homogenization. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 93:28-35. [DOI: 10.1016/j.msec.2018.07.050] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 06/04/2018] [Accepted: 07/19/2018] [Indexed: 10/28/2022]
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23
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Niosomes for enhanced activity of praziquantel against Schistosoma mansoni: in vivo and in vitro evaluation. Parasitol Res 2018; 118:219-234. [DOI: 10.1007/s00436-018-6132-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 10/23/2018] [Indexed: 12/19/2022]
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24
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Solid dispersion of praziquantel enhanced solubility and improve the efficacy of the schistosomiasis treatment. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.03.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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25
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Effects of inclusion of cetirizine hydrochloride in β-cyclodextrin. J INCL PHENOM MACRO 2018; 91:149-159. [PMID: 30100814 PMCID: PMC6061035 DOI: 10.1007/s10847-018-0808-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Accepted: 04/27/2018] [Indexed: 10/24/2022]
Abstract
Following the preparation of inclusion complex of cetirizine (CTZ) and β-cyclodextrin (β-CD), the compound was investigated to assess the possibility of modifying the physicochemical properties (solubility, release, stability, permeability) of CTZ after complexation that are vital for subsequent formulation studies involving the said complex. Changes in FT-IR/Raman spectra, DSC thermograms and XRD diffractograms confirmed the formation of a CTZ-β-CD system. Hydrophilic interaction chromatography with a DAD detector was employed to determine alterations of the CTZ concentration during studies following complexation. An analysis of a phase-solubility diagram of cCTZ = fcβ-CD indicated a linear rise in the solubility of CTZ as the concentration of β-CD increased. The inclusion of CTZ in a system with β-CD significantly reduced the instability of CTZ in the presence of oxidizing factors. It was also found that regardless of the pH of the acceptor fluids used in the release studies an increase was observed in the concentration of CTZ in CD system compared to its free form. The ability to permeate artificial biological membranes manifested by CTZ after complexation was enhanced as well. In summary, CD has significant potential to mask the bitter taste of CTZ and to counter the instability induced by oxidizing factors.
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26
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Zanolla D, Perissutti B, Passerini N, Invernizzi S, Voinovich D, Bertoni S, Melegari C, Millotti G, Albertini B. Milling and comilling Praziquantel at cryogenic and room temperatures: Assessment of the process-induced effects on drug properties. J Pharm Biomed Anal 2018; 153:82-89. [PMID: 29462783 DOI: 10.1016/j.jpba.2018.02.018] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2017] [Revised: 01/29/2018] [Accepted: 02/07/2018] [Indexed: 11/29/2022]
Abstract
This study is a comprehensive evaluation of praziquantel (PZQ) behavior upon grinding considering the influence of milling temperature (cryogenic vs room temperature), frequency and time and presence of polymers (milled raw PZQ vs comilled PZQ/povidone and PZQ/crospovidone at 50:50 w/w) on two experimental responses (residual crystallinity and PZQ recovery). To this aim a full factorial design was set up and the responses of the experimental design were statistically assessed. The powder temperature, measured in different milling conditions, was found to increase with increasing milling frequency and time, up to a maximum recorded value of 46.9 °C (after 90 min at R.T.), for all the three powder systems. When PZQ was ground in RT environment, the recovery was 100%, independently from frequency and time of milling. Its residual crystallinity remained pronounced (>70%) upon milling, even if treated at the most severe conditions. Conversely, when the drug was milled in presence of the polymers, it showed a higher tendency to degradation and amorphysation, independently from the choice of the polymer. The use of cryogenic conditions, operating at temperatures lower than PZQ glass transition, permitted to dramatically reduce PZQ residual crystallinity when the drug was ground by itself. In the case of binary mixtures, the switch to a cryogenic environment did not affect significantly the experimental responses, but permitted to obtain a more predictable trend of both drug recovery and residual crystallinity when varying time and frequency of milling.
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Affiliation(s)
- Debora Zanolla
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy
| | - Beatrice Perissutti
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy.
| | - Nadia Passerini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Sergio Invernizzi
- Società dei Naturalisti e Matematici di Modena, Via Università 4, 41121 Modena, Italy
| | - Dario Voinovich
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1, 34127 Trieste, Italy
| | - Serena Bertoni
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Cecilia Melegari
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Gioconda Millotti
- Juraj Dobrila University of Pula, Zagrebačka ul. 30, 52100, Pula, Croatia
| | - Beatrice Albertini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
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27
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Ezawa T, Inoue Y, Murata I, Takao K, Sugita Y, Kanamoto I. Characterization of the Dissolution Behavior of Piperine/Cyclodextrins Inclusion Complexes. AAPS PharmSciTech 2018; 19:923-933. [PMID: 29071656 DOI: 10.1208/s12249-017-0908-9] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 10/13/2017] [Indexed: 11/30/2022] Open
Abstract
In this study, the physicochemical properties and solubility of inclusion complexes of ground mixtures (GMs) of piperine (PP), a pungent ingredient of pepper, with α- and γ-cyclodextrin (CD) were studied. From the solubility results, the PP/αCD inclusion molar ratio was determined to be 1/2, while that of PP/γCD was 1/1, according to the AP-type phase diagram of PP/αCD and the BS-type one of PP/γCD. The powder X-ray diffraction and differential scanning calorimetry analyses confirmed the formation of GM complexes with molar ratios of PP/αCD = 1/2 and PP/γCD = 1/1. The Raman analysis revealed the disappearance of the bands corresponding to the C=C, O-CH2-O, -CH, and aliphatic C=C moieties of the methylene dioxyphenyl fragment of PP in the spectra of the inclusion complexes. In the dissolution tests, GM (PP/αCD = 1/2) and GM (PP/γCD = 1/1) showed higher solubility than free PP and the analogous physical mixtures. Furthermore, after 60 min, GM (PP/αCD = 1/2) exhibited higher solubility than GM (PP/γCD = 1/1). In the 1H-1H nuclear Overhauser effect spectroscopy measurements, GM (PP/αCD = 1/2) was found to present a head-to-head inclusion structure via the aliphatic C=C and methylene dioxyphenyl groups of PP and the two αCD molecules. In contrast, it was confirmed that γCD interacts with the O-CH2-O functionality of the methylene dioxyphenyl group of PP in a molar ratio of 1/1. It was thus concluded that the differences in the PP/CD structures influence the solubility of the inclusion complexes.
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28
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Zanolla D, Perissutti B, Passerini N, Chierotti MR, Hasa D, Voinovich D, Gigli L, Demitri N, Geremia S, Keiser J, Cerreia Vioglio P, Albertini B. A new soluble and bioactive polymorph of praziquantel. Eur J Pharm Biopharm 2018; 127:19-28. [PMID: 29409939 DOI: 10.1016/j.ejpb.2018.01.018] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Revised: 12/21/2017] [Accepted: 01/29/2018] [Indexed: 10/18/2022]
Abstract
Praziquantel is the only available drug to treat Schistosomiasis. However, its utilization is limited by many drawbacks, including the high therapeutic dose needed, resulting in large tablets and capsules difficult to be swallowed, especially from pediatric patients. In this study, an alternative option to overcome these disadvantages is proposed: to switch to a novel crystalline polymorph of racemic compound praziquantel. The preparation of the crystalline polymorph was realized via a neat grinding process in a vibrational mill. The new phase (Form B) was chemically identical to the starting material (as proved by HPLC, 1H NMR, and polarimetry), but showed different physical properties (as evaluated by SEM, differential scanning calorimetry, thermogravimetry, ATR-FTIR spectroscopy, X-ray powder diffraction, and solid-state NMR). Furthermore, the crystal structure of the new phase was solved from the powder synchrotron X-ray diffraction pattern, resulting in a monoclinic C2/c cell and validated by DFT-D calculation. Moreover the simulated solid-state NMR 13C chemical shifts were in excellent agreement with the experimental data. The conversion of original praziquantel into Form B showed to affect positively the water solubility and the intrinsic dissolution rate of praziquantel. Both the in vitro and in vivo activity against Schistosoma mansoni were maintained. Our findings suggest that the new phase, that proved to be physically stable for at least one year, is a promising product for designing a new praziquantel formulation.
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Affiliation(s)
- Debora Zanolla
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1/via L. Giorgieri 1, 34127 Trieste, Italy
| | - Beatrice Perissutti
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1/via L. Giorgieri 1, 34127 Trieste, Italy.
| | - Nadia Passerini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Michele R Chierotti
- Department of Chemistry and NIS Centre, University of Torino, V. Giuria 7, 10125 Torino, Italy
| | - Dritan Hasa
- Leicester School of Pharmacy, De Montfort University, The Gateway, LE1 9BH Leicester, United Kingdom
| | - Dario Voinovich
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1/via L. Giorgieri 1, 34127 Trieste, Italy
| | - Lara Gigli
- Elettra - Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, 34149 Basovizza, Trieste, Italy
| | - Nicola Demitri
- Elettra - Sincrotrone Trieste, S.S. 14 Km 163.5 in Area Science Park, 34149 Basovizza, Trieste, Italy
| | - Silvano Geremia
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, P.le Europa 1/via L. Giorgieri 1, 34127 Trieste, Italy
| | - Jennifer Keiser
- Helminth Drug Development Unit, Department of Medical Parasitology and Infection Biology, Swiss Tropical and Public Health Institute, Socinstr. 57, CH-4051 Basel, Switzerland
| | | | - Beatrice Albertini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
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29
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Rahimzadeh G, Kianmehr E, Mahdavi M. Improvement of the Van Leusen reaction in the presence of β-cyclodextrin: a green and efficient synthesis of oxazoles in water. ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2017. [DOI: 10.1515/znb-2017-0005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
An efficient approach for the synthesis of oxazoles through the Van Leusen reaction in the presence of β-cyclodextrin is described. In aqueous medium using β-cyclodextrin as a supramolecular catalyst, tosylmethyl isocyanide was deprotonated by triethylamine and subsequently underwent an addition/cyclization reaction with aldehydes to produce corresponding oxazoles in excellent yields. This protocol improves the Van Leusen reaction with the use of catalytic amounts of base at low temperature in green media.
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Affiliation(s)
- Golnaz Rahimzadeh
- School of Chemistry, College of Science , University of Tehran , Tehran , Iran
| | - Ebrahim Kianmehr
- School of Chemistry, College of Science , University of Tehran , Tehran , Iran
| | - Mohammad Mahdavi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute , Tehran University of Medical Sciences , Tehran , Iran , Fax: +98-21-6640-6757
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30
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Tasneem S. Hydration and Solvation Effect of Glycine and Glycylglycine Molecules with β-Cyclodextrin in Aqueous Media. A Thermodynamic Characteristic of Interaction. Z PHYS CHEM 2017. [DOI: 10.1515/zpch-2016-0895] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The densities, ρ and viscosities, η have been measured for DL- glycine (Gly) and glycylglycine (Gly-Gly) in aqueous β cyclodextrin, (β-CD) at temperature 298.15, 303.15, 308.15, 313.15 and 318.15 K. Interaction between macrocyclic β-CD and amino acids was studied by two independent technique: density and viscosity. The two different intensive properties are used to obtain various thermodynamic characteristics of the material behavior. Using the measured density data the apparent molar volumes, Vϕ
, partial molar volume at infinite dilution,
V
ϕ
ο
,
$V_\phi ^o,$
experimental slope, SV
, isobaric expansibility,
ϕ
E
0
,
$\phi _E^0,$
and the partial molar volume of transfer at infinite dilution,
Δ
V
ϕ
(
t
r
)
ο
$\Delta V_{\phi (tr)}^o$
have been obtained. Moreover, the Falkenhagen’s theoretical coefficient, A, Jones-Dole coefficient, B, free energies of activation of viscous flow per mole of solvent,
Δ
μ
1
ο
#
$\Delta \mu _1^{o\# }$
and per mole of solute,
Δ
μ
2
ο
#
,
$\Delta \mu _2^{o\# },$
enthalpy, ΔHo
# and entropy, ΔSo
# of activation of viscous flow have been evaluated by using viscosity data. The negative value of transfer volume for Gly and Gly-Gly in aqueous β-CD suggests that the hydrophobic-hydrophilic and hydrophobic-hydrophobic interactions are predominating over ionic-hydrophilic and hydrophilic-hydrophilic interactions. The results indicate the formation of a stable complexation between the β-CD cavity and structural hydration effect of amino acids on the thermodynamic of their interactions in solutions.
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Affiliation(s)
- Shadma Tasneem
- Department of Chemistry, Faculty of Medicine , Jazan University , Jazan , P.O. Box 114, Saudi Arabia , KSA
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31
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Tomiotto-Pellissier F, Miranda-Sapla MM, Machado LF, Bortoleti BTDS, Sahd CS, Chagas AF, Assolini JP, Oliveira FJDA, Pavanelli WR, Conchon-Costa I, Costa IN, Melanda FN. Nanotechnology as a potential therapeutic alternative for schistosomiasis. Acta Trop 2017; 174:64-71. [PMID: 28668252 DOI: 10.1016/j.actatropica.2017.06.025] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2017] [Revised: 06/26/2017] [Accepted: 06/27/2017] [Indexed: 02/08/2023]
Abstract
Schistosomiasis is a neglected disease that affects millions of people worldwide, recognized as the most important human helminth infection in terms of morbidity and mortality. The treatment of choice presents low bioavailability and water solubility, in addition to the induction of parasite resistance. In this context, researchers have been conducting studies seeking to develop new drugs to ensure safety, quality, and efficacy against this parasitosis. In this scenario, nanotechnology arises including the drug delivery systems in nanoscale: nanoemulsions, liposomes and nanoparticles. These drug delivery systems have been extensively applied for in vitro and in vivo studies against Schistosoma spp. with promising results. This review pointed out the most relevant development scenarios regarding the treatment of schistosomiasis as well as the application of nanotechnology as a vaccine, highlighting the use of nanotechnology as an alternative therapy for both the repositioning of drugs and the use of new pharmaceutical products, with promising results regarding the aforementioned disease.
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Münster M, Mohamed-Ahmed AHA, Immohr LI, Schoch C, Schmidt C, Tuleu C, Breitkreutz J. Comparative in vitro and in vivo taste assessment of liquid praziquantel formulations. Int J Pharm 2017; 529:310-318. [PMID: 28689966 DOI: 10.1016/j.ijpharm.2017.06.084] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 06/26/2017] [Accepted: 06/28/2017] [Indexed: 11/15/2022]
Abstract
The taste of pharmaceuticals strongly affects the compliance of patients. This study investigated the applicability of the electronic tongue and rodent brief-access taste aversion (BATA) model for the bitter compound praziquantel (PZQ) and taste masked liquid formulations for PZQ. In a comparative study maltodextrin (MD) Kleptose® linecaps 17 was selected as an alternative taste masking agent to two cyclodextrins; hydroxypropyl-beta-cyclodextrin (HP-β-CD) and sulfobutyl ether-beta-cyclodextrin (SBE-β-CD). A phase solubility study showed the highest affinity and solubilization capabilities for SBE-β-CD over HP-β-CD and MD, suggesting the highest taste masking ability for SBE-β-CD. No reliable results were achieved for PZQ with the Insent electronic tongue. Thus this system was not used for further evaluation of solutions with MD and CDs to confirm the results of the solubility study. In contrast the BATA model demonstrated conclusive responses for the aversiveness of PZQ. The concentration of PZQ inhibiting 50% of water lick numbers (called IC50 value) was 0.06mg/ml. In contrast to the phase solubility study, the MD enabled an equal taste masking effect in vivo in comparison to both CDs. Moreover HP-β-CD showed superior taste masking capabilities for PZQ compared to SBE-β-CD as the SBE-β-CD itself was less acceptable for the rodents than HP-β-CD. In conclusion, the BATA model was identified as a more efficient taste assessment tool for the pure PZQ and liquid formulations in contrast to the electronic tongue and the phase solubility study.
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Affiliation(s)
- Magdalena Münster
- Merck KGaA, Pharmaceutical Technologies, Frankfurter Straße 250, 64293 Darmstadt, Germany; Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-University, Universitätsstr. 1, 40225 Düsseldorf, Germany.
| | - Abeer H A Mohamed-Ahmed
- Department of Pharmaceutics, UCL School of Pharmacy, 29/39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Laura I Immohr
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-University, Universitätsstr. 1, 40225 Düsseldorf, Germany
| | - Corinna Schoch
- Merck KGaA, Pharmaceutical Technologies, Frankfurter Straße 250, 64293 Darmstadt, Germany
| | - Carsten Schmidt
- Merck KGaA, Pharmaceutical Technologies, Frankfurter Straße 250, 64293 Darmstadt, Germany
| | - Catherine Tuleu
- Department of Pharmaceutics, UCL School of Pharmacy, 29/39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Jörg Breitkreutz
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich-Heine-University, Universitätsstr. 1, 40225 Düsseldorf, Germany
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Rocha JCB, Silva EF, Oliveira MF, Sousa FB, Teixeira AVNC, Rocha MS. β-Cyclodextrin polymer binding to DNA: Modulating the physicochemical parameters. Phys Rev E 2017; 95:052416. [PMID: 28618573 DOI: 10.1103/physreve.95.052416] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Indexed: 11/07/2022]
Abstract
Cyclodextrins and cyclodextrins-modified molecules have interesting and appealing properties due to their capacity to host components that are normally insoluble or poorly soluble in water. In this work, we investigate the interaction of a β-cyclodextrin polymer (poly-β-CD) with λ-DNA. The polymers are obtained by the reaction of β-CD with epichlorohydrin in alkaline conditions. We have used optical tweezers to characterize the changes of the mechanical properties of DNA molecules by increasing the concentration of poly-β-CD in the sample. The physical chemistry of the interaction is then deduced from these measurements by using a recently developed quenched-disorder statistical model. It is shown that the contour length of the DNA does not change in the whole range of poly-β-CD concentration (<300μM). On the other hand, significant alterations were observed in the persistence length that identifies two binding modes corresponding to the clustering of ∼2.6 and ∼14 polymer molecules along the DNA double helix, depending on the polymer concentration. Comparing these results with the ones obtained for monomeric β-CD, it was observed that the concentration of CD that alters the DNA persistence length is considerably smaller when in the polymeric form. Also, the binding constant of the polymer-DNA interaction is three orders of magnitude higher than the one found for native (monomeric) β-CD. These results show that the polymerization of the β-CD strongly increases its binding affinity to the DNA molecule. This property can be wisely used to modulate the binding of cyclodextrins to the DNA double helix.
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Affiliation(s)
- J C B Rocha
- Departamento de Física, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil.,Instituto Federal do Norte de Minas Gerais-Campus Avançado Janaúba, 39440-000 Janaúba, MG, Brazil
| | - E F Silva
- Departamento de Física, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - M F Oliveira
- Departamento de Química, Universidade Federal de Minas Gerais, 31270-901 Belo Horizonte, MG, Brazil
| | - F B Sousa
- Instituto de Física e Química, Universidade Federal de Itajubá, 37500-903 Itajubá, MG, Brazil
| | - A V N C Teixeira
- Departamento de Física, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
| | - M S Rocha
- Departamento de Física, Universidade Federal de Viçosa, 36570-900 Viçosa, MG, Brazil
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An explorative analysis of process and formulation variables affecting comilling in a vibrational mill: The case of praziquantel. Int J Pharm 2017; 533:402-412. [PMID: 28552799 DOI: 10.1016/j.ijpharm.2017.05.053] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2016] [Revised: 05/02/2017] [Accepted: 05/22/2017] [Indexed: 11/20/2022]
Abstract
Praziquantel, a BCS II class anthelmintic drug used for the treatment of schistosome infections, was coground in a vibrational mill with different polymers (linear and crosslinked povidone, copovidone and sodium starch glycolate). An explorative analysis of formulation variables (drug-polymer wt ratio and polymer type) and process parameters (type of grinding media, grinding time and frequency) was carried out with the help of an experimental screening design. The influence of the above mentioned factors on three PZQ characteristics (residual crystallinity, water solubility enhancement and drug recovery) was studied. The variation of carrier amount proved to be by far the most important variable affecting all the experimental responses. A lower impact and, in some cases, rather null effect, had the variation of the process variables. All coground systems were characterized by a high amorphous degree and a solubility significantly higher than the API. A very promising product was obtained by processing at 20Hz for 4h, using 3 spheres of 15mm as grinding media, i.e. a coground having a 50% API content, showing a 4.6-fold greater solubility at 20°C than pure praziquantel. This product maintained the same antischistosomal activity of pure API and was both physically and chemically stable for at least 6 months.
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Tian Z, Si L, Meng K, Zhou X, Zhang Y, Zhou D, Xiao S. Inhibition of influenza virus infection by multivalent pentacyclic triterpene-functionalized per-O-methylated cyclodextrin conjugates. Eur J Med Chem 2017; 134:133-139. [PMID: 28411453 DOI: 10.1016/j.ejmech.2017.03.087] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 02/22/2017] [Accepted: 03/31/2017] [Indexed: 11/25/2022]
Abstract
Multivalent ligands that exhibit high binding affinity to influenza hemagglutinin (HA) trimer can block the interaction of HA with its sialic acid receptor. In this study, a series of multivalent pentacyclic triterpene-functionalized per-O-methylated cyclodextrin (CD) derivatives were designed and synthesized using 1, 3-dipolar cycloaddition click reaction. A cell-based assay showed that three compounds (25, 28 and 31) exhibited strong inhibitory activity against influenza A/WSN/33 (H1N1) virus. Compound 28 showed the most potent anti-influenza activity with IC50 of 4.7 μM. The time-of-addition assay indicated that compound 28 inhibited the entry of influenza virus into host cell. Further hemagglutination inhibition (HI) and surface plasmon resonance (SPR) assays indicated that compound 28 tightly bound to influenza HA protein with a dissociation constant (KD) of 4.0 μM. Our results demonstrated a strategy of using per-O-methylated β-CD as a scaffold for designing multivalent compounds to disrupt influenza HA protein-host receptor protein interaction and thus block influenza virus entry into host cells.
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Affiliation(s)
- Zhenyu Tian
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Longlong Si
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Kun Meng
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Xiaoshu Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Yongmin Zhang
- Sorbonne Universités, UPMC Univ Paris 06, Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, 4 place Jussieu, 75005 Paris, France
| | - Demin Zhou
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Sulong Xiao
- State Key Laboratory of Natural and Biomimetic Drugs, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
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Cugovčan M, Jablan J, Lovrić J, Cinčić D, Galić N, Jug M. Biopharmaceutical characterization of praziquantel cocrystals and cyclodextrin complexes prepared by grinding. J Pharm Biomed Anal 2017; 137:42-53. [DOI: 10.1016/j.jpba.2017.01.025] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Revised: 01/09/2017] [Accepted: 01/09/2017] [Indexed: 11/30/2022]
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Saokham P, Loftsson T. γ-Cyclodextrin. Int J Pharm 2016; 516:278-292. [PMID: 27989822 DOI: 10.1016/j.ijpharm.2016.10.062] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Revised: 10/24/2016] [Accepted: 10/26/2016] [Indexed: 12/26/2022]
Abstract
γ-Cyclodextrin (γCD) is a cyclic oligosaccharide formed by bacterial digestion of starch and used as solubilizing agent and stabilizer in a variety of pharmaceutical and food products. γCD is a large (molecular weight 1297Da) hydrophilic molecule that does not readily permeate biological membranes and is rapidly digested by bacteria in the gastrointestinal tract. In humans γCD is metabolized by α-amylase that is found in, for example, saliva, bile fluid and tears. Thus, bioavailability of γCD is negligible. Also, γCD is readily excreted unchanged in the urine after parenteral administration. Like other cyclodextrins, γCD can form water-soluble inclusion complexes with many poorly-soluble compounds. In comparison with the natural αCD and βCD, γCD has the largest hydrophobic cavity, highest water solubility and the most favorable toxicological profile. The focus of this review is production, physiochemical properties, pharmacokinetics, toxicity and applications of γCD and its derivatives. Also, the aggregation behavior of γCD in aqueous media is discussed.
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Affiliation(s)
- Phennapha Saokham
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland
| | - Thorsteinn Loftsson
- Faculty of Pharmaceutical Sciences, University of Iceland, Hofsvallagata 53, IS-107 Reykjavik, Iceland.
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Otsuka M, Maeno Y, Fukami T, Inoue M, Tagami T, Ozeki T. Solid dispersions of efonidipine hydrochloride ethanolate with improved physicochemical and pharmacokinetic properties prepared with microwave treatment. Eur J Pharm Biopharm 2016; 108:25-31. [PMID: 27553261 DOI: 10.1016/j.ejpb.2016.08.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2016] [Revised: 08/16/2016] [Accepted: 08/16/2016] [Indexed: 10/21/2022]
Abstract
Drug absorption into the body is known to be greatly affected by the solubility of the drug itself. The active pharmaceutical ingredient efonidipine hydrochloride ethanolate (NZ-105) is a novel 1,4-dihydropyridine calcium antagonist that has a very low solubility in water. It is classified as a poorly soluble drug, and improvements in its solubility and higher bioavailability with oral administration are needed. In this study, employing microwave technology as a new means to improve solubility, we established a method for preparing solid dispersions using hydroxypropyl methylcellulose acetate succinate as a polymeric carrier and urea as a third component. This effective method has a treatment time of several minutes (simple) and does not require the use of organic solvents (low environmental impact). The third component, urea, acts to lower the melting point of NZ-105, which promotes amorphization. This greatly improves the solubility compared with the microwave-treated product of NZ-105/HPMC-AS binary system. The solid dispersion prepared with this method, in addition to evaluation in vitro, was tested in vivo using beagle dogs and shown to be effective from the eightfold improvement in absorption compared with NZ-105 alone based on the area under the curve.
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Affiliation(s)
- Masafumi Otsuka
- Analysis Research Department, Nissan Chemical Industries, Ltd., 2-10-1 Tsuboi-nishi, Funabashi, Chiba 274-8507, Japan.
| | - Yusuke Maeno
- Analysis Research Department, Nissan Chemical Industries, Ltd., 2-10-1 Tsuboi-nishi, Funabashi, Chiba 274-8507, Japan
| | - Toshiro Fukami
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Motoki Inoue
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Tatsuaki Tagami
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Aichi 467-8603, Japan
| | - Tetsuya Ozeki
- Drug Delivery and Nano Pharmaceutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Aichi 467-8603, Japan
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Tuomela A, Hirvonen J, Peltonen L. Stabilizing Agents for Drug Nanocrystals: Effect on Bioavailability. Pharmaceutics 2016; 8:pharmaceutics8020016. [PMID: 27213435 PMCID: PMC4932479 DOI: 10.3390/pharmaceutics8020016] [Citation(s) in RCA: 135] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/12/2016] [Accepted: 05/16/2016] [Indexed: 12/26/2022] Open
Abstract
Drug nanocrystals are a versatile option for drug delivery purposes, and while the number of poorly soluble drug materials is all the time increasing, more research in this area is performed. Drug nanocrystals have a simple structure-a solid drug core is surrounded by a layer of stabilizing agent. However, despite the considerably simple structure, the selection of an appropriate stabilizer for a certain drug can be challenging. Mostly, the stabilizer selection is based purely on the requirement of physical stability, e.g., maintaining the nanosized particle size as long as possible after the formation of drug nanocrystals. However, it is also worth taking into account that stabilizer can affect the bioavailability in the final formulation via interactions with cells and cell layers. In addition, formation of nanocrystals is only one process step, and for the final formulation, more excipients are often added to the composition. The role of the stabilizers in the final formulation can be more than only stabilizing the nanocrystal particle size. A good example is the stabilizer's role as cryoprotectant during freeze drying. In this review, the stabilizing effect, role of stabilizers in final nanocrystalline formulations, challenges in reaching in vitro-in vivo correlation with nanocrystalline products, and stabilizers' effect on higher bioavailability are discussed.
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Affiliation(s)
- Annika Tuomela
- Division of Pharmaceutical Chemistry and Technology, P.O. Box 56 (Viikinkaari 5 E), University of Helsinki, 00014 Helsinki, Finland.
| | - Jouni Hirvonen
- Division of Pharmaceutical Chemistry and Technology, P.O. Box 56 (Viikinkaari 5 E), University of Helsinki, 00014 Helsinki, Finland.
| | - Leena Peltonen
- Division of Pharmaceutical Chemistry and Technology, P.O. Box 56 (Viikinkaari 5 E), University of Helsinki, 00014 Helsinki, Finland.
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da Silva Mourão LC, Ribeiro Batista DRM, Honorato SB, Ayala AP, de Alencar Morais W, Barbosa EG, Raffin FN, de Lima e Moura TFA. Effect of hydroxypropyl methylcellulose on beta cyclodextrin complexation of praziquantel in solution and in solid state. J INCL PHENOM MACRO 2016. [DOI: 10.1007/s10847-016-0614-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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Arrúa EC, Ferreira MG, Salomon CJ, Nunes TG. Elucidating the guest-host interactions and complex formation of praziquantel and cyclodextrin derivatives by 13 C and 15 N solid-state NMR spectroscopy. Int J Pharm 2015; 496:812-21. [DOI: 10.1016/j.ijpharm.2015.11.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2015] [Revised: 11/11/2015] [Accepted: 11/14/2015] [Indexed: 11/15/2022]
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Paczkowska M, Mizera M, Szymanowska-Powałowska D, Lewandowska K, Błaszczak W, Gościańska J, Pietrzak R, Cielecka-Piontek J. β-Cyclodextrin complexation as an effective drug delivery system for meropenem. Eur J Pharm Biopharm 2015; 99:24-34. [PMID: 26592156 DOI: 10.1016/j.ejpb.2015.10.013] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 10/19/2015] [Accepted: 10/23/2015] [Indexed: 12/28/2022]
Abstract
Following the preparation of an inclusion complex of β-cyclodextrin and meropenem, methods based on FT-IR, Raman and DSC were used for its characterization. An analysis of changes in the stability of meropenem after complexation showed that the complex may serve as a valuable delivery system significantly contributing to enhanced meropenem stability in aqueous solutions and in the solid phase. Due to a sustained transfer of meropenem from the cavity of the cyclodextrin it was possible to maintain a constant desired meropenem concentration over a period of 20 h, as confirmed by a release study. An evaluation of microbial activity not only demonstrated that the bactericidal action of meropenem was not stopped as a result of complexation but even pointed to greater growth inhibition in certain clinically important strains. The fact that investigations of meropenem stability and microbial activity proposed the carbonyl groups as those domains of a meropenem molecule that are instrumental in the formation of a complex with β-cyclodextrin supports the findings of theoretical studies based on molecular modeling.
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Affiliation(s)
- Magdalena Paczkowska
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Mikołaj Mizera
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland
| | - Daria Szymanowska-Powałowska
- Department of Biotechnology and Food Microbiology, Poznan University of Life Sciences, Wojska Polskiego 48, 60-627 Poznan, Poland
| | - Kornelia Lewandowska
- Department of Molecular Crystals, Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznan, Poland
| | - Wioletta Błaszczak
- Institute of Animal Reproduction and Food Research of Polish Academy of Sciences, Tuwima 10, 10-748 Olsztyn, Poland
| | - Joanna Gościańska
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
| | - Robert Pietrzak
- Faculty of Chemistry, Adam Mickiewicz University in Poznan, Umultowska 89b, 61-614 Poznan, Poland
| | - Judyta Cielecka-Piontek
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznan, Poland.
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Praziquantel in a clay nanoformulation shows more bioavailability and higher efficacy against murine Schistosoma mansoni infection. Antimicrob Agents Chemother 2015; 59:3501-8. [PMID: 25845870 DOI: 10.1128/aac.04875-14] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 03/29/2015] [Indexed: 12/15/2022] Open
Abstract
Consideration of existing compounds always simplifies and shortens the long and difficult process of discovering new drugs specifically for diseases of developing countries, an approach that may add to the significant potential cost savings. This study focused on improving the biological characteristics of the already-existing antischistosomal praziquantel (PZQ) by incorporating it into montmorillonite (MMT) clay as a delivery carrier to overcome its known bioavailability drawbacks. The oral bioavailability of a PZQ-MMT clay nanoformulation and its in vivo efficacy against Schistosoma mansoni were investigated. The PZQ-MMT clay nanoformulation provided a preparation with a controlled release rate, a decrease in crystallinity, and an appreciable reduction in particle size. Uninfected and infected mice treated with PZQ-MMT clay showed 3.61- and 1.96-fold and 2.16- and 1.94-fold increases, respectively, in area under the concentration-time curve from 0 to 8 h (AUC0-8) and maximum concentration of drug in serum (Cmax), with a decrease in elimination rate constant (kel) by 2.84- and 1.35-fold and increases in the absorption rate constant (ka) and half-life (t1/2e) by 2.11- and 1.51-fold and 2.86- and 1.34-fold, respectively, versus the corresponding conventional PZQ-treated groups. This improved bioavailability has been expressed in higher efficacy of the drug, where the dose necessary to kill 50% of the worms was reduced by >3-fold (PZQ 50% effective dose [ED50] was 20.25 mg/kg of body weight for PZQ-MMT clay compared to 74.07 mg/kg for conventional PZQ), with significant reduction in total tissue egg load and increase in total immature, mature, and dead eggs in most of the drug-treated groups. This formulation showed better bioavailability, enhanced antischistosomal efficacy, and a safer profile despite the longer period of residence in the systemic circulation. Although the conventional drug's toxicity was not examined, animal mortality rates were not different between groups receiving the test PZQ-clay nanoformulation and conventional PZQ.
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Khadka P, Ro J, Kim H, Kim I, Kim JT, Kim H, Cho JM, Yun G, Lee J. Pharmaceutical particle technologies: An approach to improve drug solubility, dissolution and bioavailability. Asian J Pharm Sci 2014. [DOI: 10.1016/j.ajps.2014.05.005] [Citation(s) in RCA: 462] [Impact Index Per Article: 46.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Abstract
CONTEXT Ever since the discovery of cyclodextrins, a family of cyclic oligosaccharides based on α (1 → 4) linkage among glucopyranose subunits, these versatile supramolecular hosts have received tremendous attention for scientific explorations. Due to their property of forming host-guest type inclusion complex, cyclodextrins and their synthetic derivatives exhibit wide range of utilities in different areas viz. pharmaceuticals, drug delivery systems, cosmetics, food and nutrition, textile and chemical industry etc. OBJECTIVE The purpose of this review is to highlight properties, advantages, recent studies and versatile benefits of cyclodextrins and to re-strengthen their prospective applications in novel directions for future research. METHODS This article summarizes a variety of applications of cyclodextrins in various industrial products, technologies, analytical and chemical processes and recent industrial advancements by extensively literature search on various scientific databases, Google and websites of various associated pharmaceutical industries and patenting authorities across the world. RESULTS AND CONCLUSION Due to possibility of multidimensional changes in physical and chemical properties of molecules upon inclusion complexation in cyclodextrins, these compounds are of great commercial interest and may offer solution to many of the scientific problems of the current world.
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Affiliation(s)
- Neha Sharma
- a Department of Quality Assurance , I.S.F. College of Pharmacy , Moga , Punjab , India
| | - Ashish Baldi
- a Department of Quality Assurance , I.S.F. College of Pharmacy , Moga , Punjab , India
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Formulation and evaluation of fixed-dose combination of bilayer gastroretentive matrix tablet containing atorvastatin as fast-release and atenolol as sustained-release. BIOMED RESEARCH INTERNATIONAL 2014; 2014:396106. [PMID: 24527446 PMCID: PMC3909979 DOI: 10.1155/2014/396106] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2013] [Revised: 09/29/2013] [Accepted: 10/08/2013] [Indexed: 12/05/2022]
Abstract
The objective of the present study was to develop bilayer tablets of atorvastatin and atenolol that are characterized by initial fast-release of atorvastatin in the stomach and comply with the release requirements of sustained-release of atenolol. An amorphous, solvent evaporation inclusion complex of atorvastatin with β-cyclodextrin, present in 1 : 3 (drug/cyclodextrin) molar ratio, was employed in the fast-release layer to enhance the dissolution of atorvastatin. Xanthan gum and guar gum were integrated in the sustained-release layer. Bilayer tablets composed of sustained-release layer (10% w/w of xanthan gum and guar gum) and fast-release layer [1 : 3 (drug/cyclodextrin)] showed the desired release profile. The atorvastatin contained in the fast-release layer showed an initial fast-release of more than 60% of its drug content within 2 h, followed by sustained release of the atenolol for a period of 12 h. The pharmacokinetic study illustrated that the fast absorption and increased oral bioavailability of atorvastatin as well as therapeutic concentration of atenolol in blood were made available through adoption of formulation strategy of bilayer tablets. It can be concluded that the bilayer tablets of atorvastatin and atenolol can be successfully employed for the treatment of hypertension and hypercholesterolemia together through oral administration of single tablet.
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Intestinal Lymphatic Delivery of Praziquantel by Solid Lipid Nanoparticles: Formulation Design,In VitroandIn VivoStudies. JOURNAL OF NANOTECHNOLOGY 2014. [DOI: 10.1155/2014/351693] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The aim of the present work was to design and develop Praziquantal (PZQ) loaded solid lipid nanoparticles (PZQ-SLN) to improve the oral bioavailability by targeting intestinal lymphatic system. PZQ is practically insoluble in water and exhibits extensive hepatic first-pass metabolism. PZQ SLN were composed of triglycerides, lecithin and various aqueous surfactants; were optimized using hot homogenization followed by ultrasonication method. The optimized SLN had particle size of123±3.41 nm, EE of86.6±5.72%. The drug release of PZQ-SLN showed initial burst release followed by the sustained release. Inspite of zeta potential being around −10 mV, the optimized SLN were stable at storage conditions (5±3°C and25±2°C/60±5% RH) for six months. TEM study confirmed the almost spherical shape similar to the control formulations. Solid state characterization using differential scanning calorimeter (DSC) and powder X-ray diffraction (PXRD) analysis confirmed the homogeneous distribution of PZQ within the lipid matrix. The 5.81-fold increase inAUC0→∞, after intraduodenal administration of PZQ-SLN in rats treated with saline in comparison to rats treated with cycloheximide (a blocker of intestinal lymphatic pathway), confirmed its intestinal lymphatic delivery. The experimental results indicate that SLN may offer a promising strategy for improving the therapeutic efficacy and reducing the dose.
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Forwood JM, Harris JO, Deveney MR. Efficacy of bath and orally administered praziquantel and fenbendazole against Lepidotrema bidyana Murray, a monogenean parasite of silver perch, Bidyanus bidyanus (Mitchell). JOURNAL OF FISH DISEASES 2013; 36:939-947. [PMID: 23488766 DOI: 10.1111/jfd.12089] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2012] [Revised: 12/04/2012] [Accepted: 01/02/2013] [Indexed: 06/01/2023]
Abstract
We investigated the efficacy of praziquantel (PZQ) and fenbendazole (FBZ), each administered by bath and orally, against the monogenean Lepidotrema bidyana Murray, a gill parasite of the freshwater fish silver perch, Bidyanus bidyanus (Mitchell). PZQ and FBZ were each administered by bath at 10 mg L⁻¹ for 48 h and on surface-coated feed pellets at 75 mg kg⁻¹ per body weight (BW) per day for 6 days. Bath treatments of PZQ and FBZ had an efficacy of 99% and 91%, respectively, against adult L. bidyana. Oral treatments of PZQ and FBZ had an efficacy of 79% and 95%, respectively, against adult L. bidyana. Fish rejected feed pellets surface-coated with PZQ, suggesting that palatability of surface-coated PZQ-medicated feed is poor, which undermined efficacy. In all trials, some juvenile parasites were present on fish after treatment during efficacy assessment, indicating that efficacy may be lower against juvenile parasites or that recruitment occurred post-treatment, demonstrating that repeat treatments are necessary to effectively control L. bidyana in aquaculture.
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Affiliation(s)
- J M Forwood
- School of Biological Sciences, Flinders University, Adelaide, SA, Australia
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Siddiqui A, Shah RB, Khan MA. Oseltamivir Phosphate–Amberlite™ IRP 64 Ionic Complex for Taste Masking: Preparation and Chemometric Evaluation. J Pharm Sci 2013; 102:1800-1812. [DOI: 10.1002/jps.23518] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 02/11/2013] [Accepted: 03/04/2013] [Indexed: 11/11/2022]
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Fonseca LB, Nele M, Volpato NM, Seiceira RC, Pinto JC. Production of PMMA Nanoparticles Loaded with Praziquantel Through “In Situ” Miniemulsion Polymerization. MACROMOL REACT ENG 2012. [DOI: 10.1002/mren.201200036] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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