101
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Shevchuk O, Snezhkova E, Sarnatskaya V, Mikhailenko V, Glavin A, Makovetska L, Bardakhivska K, Birchenko I, Kozynchenko O, Nikolaev V. Effect of Primary and Secondary Beads of Carbon Enterosorbent on Haematological Parameters and Oxidative Stress Development Caused by Melphalan in Rats. MEDICINA (KAUNAS, LITHUANIA) 2019; 55:E557. [PMID: 31480729 PMCID: PMC6780921 DOI: 10.3390/medicina55090557] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 08/24/2019] [Accepted: 08/29/2019] [Indexed: 12/09/2022]
Abstract
Background and Objectives: Side effects of anti-cancer drugs are usually accompanied by oxidative stress, including myelotoxicity. We evaluated the potential of oral highly activated micro-/macroporous carbon adsorbents (bulk density of 0.16 g/cm3, surface area calculation by Brunauer-Emmett-Teller model (SBET) > 2200 m2/g, derived from proprietary phenolic resin beads) to alleviate oxidative stress and myelotoxicity in rats. Materials and Methods: A single injection of cytostatic melphalan (L-PAM) at a dose of 4 mg/kg was used for modelling. Two forms of activated carbon were used: AC1-primary beads with the particle size range of 125-250 µm, and AC2-micronized AC1 with a mean particle size of ~1 µm. We measured haematological parameters white blood cells, red blood cells, platelet count, and haemoglobin level. Oxidative stress intensity was evaluated using the following markers: total levels of reactive oxygen species (ROS) in blood plasma; catalase activity (CAT) and pro-oxidant/antioxidant ratio in blood haemolysate samples; level of reduced glutathione (GSH) in liver tissues; oxidative modification of proteins, OPM (APHD, aldehyde-dinitrophenylhydrazone derivatives and KPHD, ketone dinitrophenylhydrazone derivatives) and malonic dialdehyde (MDA) in blood plasma and liver samples. Results: AC2 administration promoted significant myeloprotective effect: 1.5-fold increase in leukocytes, 2-fold in neutrophils, 1.5-fold in lymphocytes, and 1.23-fold in platelet count compared to the experimental Melphalan Group. At the same time, AC1 administration resulted in a slight increase in haematological parameters. Both ACs positively corrected important, but diverse, components of oxidative stress. They significantly reduced oxidative modification of blood and liver proteins (especially the AC1 form), normalized the level of reduced glutathione, pro-oxidant/antioxidant ratio and other markers. For some markers, such as ROS production in blood plasma, the use of enterosorbents resulted in non-significant a shift towards normal parameters. Conclusions: Oral activated carbon adsorbents reduce oxidative stress intensity and myelotoxicity; they can be promising means to combat the adverse effects of chemotherapy in clinical practice.
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Affiliation(s)
- Oksana Shevchuk
- I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine.
| | - Elisaveta Snezhkova
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR) of the National Academy of Science of Ukraine, 03022 Kyiv, Ukraine
| | - Veronika Sarnatskaya
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR) of the National Academy of Science of Ukraine, 03022 Kyiv, Ukraine
| | - Victor Mikhailenko
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR) of the National Academy of Science of Ukraine, 03022 Kyiv, Ukraine
| | - Alexei Glavin
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR) of the National Academy of Science of Ukraine, 03022 Kyiv, Ukraine
| | - Lyudmyla Makovetska
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR) of the National Academy of Science of Ukraine, 03022 Kyiv, Ukraine
| | - Kvitoslava Bardakhivska
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR) of the National Academy of Science of Ukraine, 03022 Kyiv, Ukraine
| | - Inna Birchenko
- I. Horbachevsky Ternopil National Medical University, 46001 Ternopil, Ukraine
| | | | - Volodymyr Nikolaev
- R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology (IEPOR) of the National Academy of Science of Ukraine, 03022 Kyiv, Ukraine
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102
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Edueng K, Bergström CAS, Gråsjö J, Mahlin D. Long-Term Physical (In)Stability of Spray-Dried Amorphous Drugs: Relationship with Glass-Forming Ability and Physicochemical Properties. Pharmaceutics 2019; 11:pharmaceutics11090425. [PMID: 31438566 PMCID: PMC6781026 DOI: 10.3390/pharmaceutics11090425] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/15/2019] [Accepted: 08/16/2019] [Indexed: 01/22/2023] Open
Abstract
This study shows the importance of the chosen method for assessing the glass-forming ability (GFA) and glass stability (GS) of a drug compound. Traditionally, GFA and GS are established using in situ melt-quenching in a differential scanning calorimeter. In this study, we included 26 structurally diverse glass-forming drugs (i) to compare the GFA class when the model drugs were produced by spray-drying with that when melt-quenching was used, (ii) to investigate the long-term physical stability of the resulting amorphous solids, and (iii) to investigate the relationship between physicochemical properties and the GFA of spray-dried solids and their long-term physical stability. The spray-dried solids were exposed to dry (<5% RH) and humid (75% RH) conditions for six months at 25 °C. The crystallization of the spray-dried solids under these conditions was monitored using a combination of solid-state characterization techniques including differential scanning calorimetry, Raman spectroscopy, and powder X-ray diffraction. The GFA/GS class assignment for 85% of the model compounds was method-dependent, with significant differences between spray-drying and melt-quenching methods. The long-term physical stability under dry condition of the compounds was predictable from GFA/GS classification and glass transition and crystallization temperatures. However, the stability upon storage at 75% RH could not be predicted from the same data. There was no strong correlation between the physicochemical properties explored and the GFA class or long-term physical stability. However, there was a slight tendency for compounds with a relatively larger molecular weight, higher glass transition temperature, higher crystallization temperature, higher melting point and higher reduced glass transition temperature to have better GFA and better physical stability. In contrast, a high heat of fusion and entropy of fusion seemed to have a negative impact on the GFA and physical stability of our dataset.
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Affiliation(s)
- Khadijah Edueng
- Department of Pharmacy, Uppsala University, Husargatan 3, 751 23 Uppsala, Sweden
- Kulliyyah of Pharmacy, International Islamic University Malaysia, Jalan Istana, Bandar Indera Mahkota 25200, Kuantan Pahang, Malaysia
| | | | - Johan Gråsjö
- Department of Pharmacy, Uppsala University, Husargatan 3, 751 23 Uppsala, Sweden
| | - Denny Mahlin
- Department of Pharmacy, Uppsala University, Husargatan 3, 751 23 Uppsala, Sweden.
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103
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Wesholowski J, Hoppe K, Nickel K, Muehlenfeld C, Thommes M. Scale-Up of pharmaceutical Hot-Melt-Extrusion: Process optimization and transfer. Eur J Pharm Biopharm 2019; 142:396-404. [PMID: 31295504 DOI: 10.1016/j.ejpb.2019.07.009] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2019] [Revised: 07/01/2019] [Accepted: 07/06/2019] [Indexed: 11/26/2022]
Abstract
Hot-Melt-Extrusion on Twin-Screw-Extruders has been established as a standard processing technique for pharmaceutical products. A major challenge is the transfer from a lab to a production level, since the combination of several unit operations within one apparatus leads to complex conditions for such a continuous manufacturing process. Here the residence time distribution is a crucial measure, which reflects the different mechanisms, e.g. dissolution, mixing or degradation, during processing. In the first part of a Scale-Up study, a methodology for the optimization of an extrusion process with respect to the load and throughput is presented. The developed concept was applied for different extruder scales in order to compare the identified processing windows. A deviation of the dominant material heating mechanisms was observed for the different scales, while the constraints for the transfer of a process to a different scale by the developed optimization concept is demonstrated. Finally, a sufficient operating point on a reference extruder is identified and in the second part of this study, different concepts from literature are applied for the transfer of this Hot-Melt-Extrusion process to two larger scales. The focus of the investigations was on the impact of the different approaches on the residence time distribution and the comparison. The determined results revealed a change of the most sufficient approach for the two different extruder sizes. The impact on the location in the time domain and form of the distribution are discussed and additionally evaluated by the fit to a RTD-model. In conclusion, the ratio of the applied energy for transport to mixing is identified as valuable addition in this context.
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Affiliation(s)
- Jens Wesholowski
- Laboratory of Solids Process Engineering, TU Dortmund University, Dortmund, Germany
| | - Kevin Hoppe
- Laboratory of Solids Process Engineering, TU Dortmund University, Dortmund, Germany
| | | | | | - Markus Thommes
- Laboratory of Solids Process Engineering, TU Dortmund University, Dortmund, Germany.
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104
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Berton P, Mishra MK, Choudhary H, Myerson AS, Rogers RD. Solubility Studies of Cyclosporine Using Ionic Liquids. ACS OMEGA 2019; 4:7938-7943. [PMID: 31459882 PMCID: PMC6649182 DOI: 10.1021/acsomega.9b00603] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 04/18/2019] [Indexed: 06/10/2023]
Abstract
Six ionic liquids (ILs) were selected based on their chemical and physical properties to study the solubility of cyclosporine A. Of these, cyclosporine exhibited higher room temperature solubility in 1-ethyl-3-methylimidazolium acetate ([C2mim][OAc]) than in acetone, an effective molecular solvent used to solubilize and purify cyclosporine. The solubility of cyclosporine in the ILs dramatically increased at higher temperatures, a critical factor that cannot be varied in a wide range with low boiling molecular solvents. The differences in solubility were explored for cyclosporine purification. Cyclosporine was purified up to ∼93% with n-butylammonium acetate ([C4NH3][OAc]) and could be further purified to 95% using an IL/organic solvent biphasic system. After purification, cyclosporine was recovered as an amorphous solid using the ILs.
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Affiliation(s)
- Paula Berton
- Chemical
and Petroleum Engineering Department, University
of Calgary, 2500 University
Drive NW, Calgary AB T2N
1N4, Canada
| | - Manish Kumar Mishra
- College
of Arts & Sciences, The University of
Alabama, 712 Capstone Drive, Tuscaloosa, Alabama 35401, United
States
| | - Hemant Choudhary
- College
of Arts & Sciences, The University of
Alabama, 712 Capstone Drive, Tuscaloosa, Alabama 35401, United
States
| | - Allan S. Myerson
- Department
of Chemical Engineering, Massachusetts Institute
of Technology, 77 Massachusetts Avenue, Cambridge, Massachusetts 02139, United States
| | - Robin D. Rogers
- College
of Arts & Sciences, The University of
Alabama, 712 Capstone Drive, Tuscaloosa, Alabama 35401, United
States
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105
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Yin J, Hou Y, Song X, Wang P, Li Y. Cholate-modified polymer-lipid hybrid nanoparticles for oral delivery of quercetin to potentiate the antileukemic effect. Int J Nanomedicine 2019; 14:4045-4057. [PMID: 31213814 PMCID: PMC6549487 DOI: 10.2147/ijn.s210057] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 05/08/2019] [Indexed: 12/22/2022] Open
Abstract
Background: Quercetin (QUE) shows a potential antileukemic activity, but possesses poor solubility and low bioavailability. Purpose: This article explored the bile salt transport pathway for oral deliver of QUE using cholate-modified polymer-lipid hybrid nanoparticles (cPLNs) aiming to enhance its antileukemic effect. Methods: QUE-loaded cPLNs (QUE-cPLNs) were developed through a nanoprecipitation technique and characterized by particle size, entrapment efficiency (EE), microscopic morphology and in vitro drug release. In vitro cellular uptake and cytotoxicity of QUE-cPLNs were examined on Caco-2 and P388 cells; in vivo pharmacokinetics and antileukemic effect were evaluated using Sprague Dawley rats and leukemic model mice, respectively. Results: The prepared QUE-cPLNs possessed a particle size of 110 nm around with an EE of 96.22%. QUE-cPLNs resulted in significantly enhanced bioavailability of QUE, up to 375.12% relative to the formulation of suspensions. In addition, QUE-cPLNs exhibited excellent cellular uptake and internalization capability compared to cholate-free QUE-PLNs. The in vitro cytotoxic and in vivo antileukemic effects of QUE-cPLNs were also signally superior to free QUE and QUE-PLNs. Conclusion: These findings indicate that cPLNs are a promising nanocarrier able to improve the oral bioavailability and therapeutic index of QUE.
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Affiliation(s)
- Juntao Yin
- Department of Pharmaceutics, Huaihe Hospital Affiliated to Henan University, Kaifeng, People's Republic of China
| | - Yantao Hou
- Henan Vocational College of Applied Technology, Kaifeng, People's Republic of China
| | - Xiaoyong Song
- School of Pharmacy, Henan University, Kaifeng, People's Republic of China
| | - Peiqing Wang
- Department of Pharmaceutics, Huaihe Hospital Affiliated to Henan University, Kaifeng, People's Republic of China
| | - Yang Li
- Department of Pharmaceutics, Huaihe Hospital Affiliated to Henan University, Kaifeng, People's Republic of China
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106
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Development of sorafenib loaded nanoparticles to improve oral bioavailability using a quality by design approach. Int J Pharm 2019; 566:229-238. [PMID: 31136778 DOI: 10.1016/j.ijpharm.2019.05.064] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 05/21/2019] [Accepted: 05/24/2019] [Indexed: 01/07/2023]
Abstract
Sorafenib, a potent anticancer drug, has low absorption in the gastrointestinal tract due to its poor aqueous solubility. The main purpose of this investigation was to design sorafenib nanoparticle using a newly developed technique, nanoparticulation using fat and supercritical fluid (NUFS™) to improve the absorption of sorafenib. The quality by design (QbD) tool was adopted to define the optimal formulation variables: hydroxypropyl methyl cellulose (HPMC), polyvinyl pyrrolidone K30 (PVP), and poloxamer. The studied response variables were particle size of nanoparticle, dissolution (5, 60, and 180 min), drug concentration time profile of nanoparticle formulations, and maximum drug concentration. The result of particle size revealed that an increase in concentration of poloxamer and HPMC decreased the particle size of nanoparticles (p < 0.05). Likewise, the concentration of drug release at different time point (5, 60, and 180 min) showed HPMC and poloxamer had positive effects on drug dissolution while PVP had negative effects on it. The design space was built in accordance with the particle size of nanoparticle (target < 500 nm) and dissolution of sorafenib (target > 7 µm/mL), following failure probability analysis using Monte Carlo simulations. In vivo pharmacokinetics studies in beagle dogs demonstrated that optimized formulation of sorafenib (F3 and F4 tablets) exhibited higher blood drug profiles indicating better absorption compared to the reference tablet (Nexavar®). In conclusion, this study showed the importance of systematic formulation design for understanding the effect of formulation variables on the characteristics of nanoparticles of the poorly soluble drug.
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107
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Komesli Y, Burak Ozkaya A, Ugur Ergur B, Kirilmaz L, Karasulu E. Design and development of a self-microemulsifying drug delivery system of olmesartan medoxomil for enhanced bioavailability. Drug Dev Ind Pharm 2019; 45:1292-1305. [DOI: 10.1080/03639045.2019.1607868] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- Yelda Komesli
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ege University, Izmir, Turkey
| | - Ali Burak Ozkaya
- Department of Medical Biochemistry, Faculty of Medicine, Izmir University of Economics, Izmir, Turkey
| | - Bekir Ugur Ergur
- Department of Basic Medicine Sciences, Faculty of Medicine, Dokuz Eylul University, Izmir, Turkey
| | - Levent Kirilmaz
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ege University, Izmir, Turkey
| | - Ercument Karasulu
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Ege University, Izmir, Turkey
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108
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Huang W, Hou Y, Lu X, Gong Z, Yang Y, Lu XJ, Liu XL, Yu DG. The Process⁻Property⁻Performance Relationship of Medicated Nanoparticles Prepared by Modified Coaxial Electrospraying. Pharmaceutics 2019; 11:E226. [PMID: 31083358 PMCID: PMC6572474 DOI: 10.3390/pharmaceutics11050226] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2019] [Revised: 05/05/2019] [Accepted: 05/07/2019] [Indexed: 11/25/2022] Open
Abstract
In pharmaceutical nanotechnology, the intentional manipulation of working processes to fabricate nanoproducts with suitable properties for achieving the desired functional performances is highly sought after. The following paper aims to detail how a modified coaxial electrospraying has been developed to create ibuprofen-loaded hydroxypropyl methylcellulose nanoparticles for improving the drug dissolution rate. During the working processes, a key parameter, i.e., the spreading angle of atomization region (θ, °), could provide a linkage among the working process, the property of generated nanoparticles and their functional performance. Compared with the applied voltage (V, kV; D = 2713 - 82V with RθV2 = 0.9623), θ could provide a better correlation with the diameter of resultant nanoparticles (D, nm; D = 1096 - 5θ with RDθ2 = 0.9905), suggesting a usefulness of accurately predicting the nanoparticle diameter. The drug released from the electrosprayed nanoparticles involved both erosion and diffusion mechanisms. A univariate quadratic equation between the time of releasing 95% of the loaded drug (t, min) and D (t = 38.7 + 0.097D - 4.838 × 105D2 with a R2 value of 0.9976) suggests that the nanoparticle diameter has a profound influence on the drug release performance. The clear process-property-performance relationship should be useful for optimizing the electrospraying process, and in turn for achieving the desired medicated nanoparticles.
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Affiliation(s)
- Weidong Huang
- School of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi 435003, China.
- Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi 435003, China.
| | - Yuan Hou
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Xinyi Lu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Ziyun Gong
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Yaoyao Yang
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
| | - Xiao-Ju Lu
- School of Chemistry and Chemical Engineering, Hubei Polytechnic University, Huangshi 435003, China.
| | - Xian-Li Liu
- Hubei Key Laboratory of Mine Environmental Pollution Control and Remediation, School of Environmental Science and Engineering, Hubei Polytechnic University, Huangshi 435003, China.
| | - Deng-Guang Yu
- School of Materials Science and Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China.
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109
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Raevsky OA, Grigorev VY, Polianczyk DE, Raevskaja OE, Dearden JC. Aqueous Drug Solubility: What Do We Measure, Calculate and QSPR Predict? Mini Rev Med Chem 2019; 19:362-372. [PMID: 30058484 DOI: 10.2174/1389557518666180727164417] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/06/2018] [Accepted: 07/20/2018] [Indexed: 01/07/2023]
Abstract
Detailed critical analysis of publications devoted to QSPR of aqueous solubility is presented in the review with discussion of four types of aqueous solubility (three different thermodynamic solubilities with unknown solute structure, intrinsic solubility, solubility in physiological media at pH=7.4 and kinetic solubility), variety of molecular descriptors (from topological to quantum chemical), traditional statistical and machine learning methods as well as original QSPR models.
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Affiliation(s)
- Oleg A Raevsky
- Department of Computer-Aided Molecular Design, Institute of Physiologically Active Compounds, Russian Academy of Science, Chernogolovka, Russian Federation
| | - Veniamin Y Grigorev
- Department of Computer-Aided Molecular Design, Institute of Physiologically Active Compounds, Russian Academy of Science, Chernogolovka, Russian Federation
| | - Daniel E Polianczyk
- Department of Computer-Aided Molecular Design, Institute of Physiologically Active Compounds, Russian Academy of Science, Chernogolovka, Russian Federation
| | - Olga E Raevskaja
- Department of Computer-Aided Molecular Design, Institute of Physiologically Active Compounds, Russian Academy of Science, Chernogolovka, Russian Federation
| | - John C Dearden
- School of Pharmacy and Biomolecular Sciences, Liverpool John Moores University, Liverpool, United Kingdom
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110
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Vauthier C. A journey through the emergence of nanomedicines with poly(alkylcyanoacrylate) based nanoparticles. J Drug Target 2019; 27:502-524. [PMID: 30889991 DOI: 10.1080/1061186x.2019.1588280] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Starting in the late 1970s, the pioneering work of Patrick Couvreur gave birth to the first biodegradable nanoparticles composed of a biodegradable synthetic polymer. These nanoparticles, made of poly(alkylcyanoacrylate) (PACA), were the first synthetic polymer-based nanoparticulate drug carriers undergoing a phase III clinical trial so far. Analyzing the journey from the birth of PACA nanoparticles to their clinical evaluation, this paper highlights their remarkable adaptability to bypass various drug delivery challenges found on the way. At present, PACA nanoparticles include a wide range of nanoparticles that can associate drugs of different chemical nature and can be administered in vivo by different routes. The most recent technologies giving the nanoparticles customised functions could also be implemented on this family of nanoparticles. Through different examples, this paper discusses the seminal role of the PACA nanoparticles' family in the development of nanomedicines.
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Affiliation(s)
- Christine Vauthier
- a Institut Galien Paris Sud, UMR CNRS 8612 , Université Paris-Sud , Chatenay-Malabry Cedex , France
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111
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Molecular modelling and simulation of fusion-based amorphous drug dispersions in polymer/plasticizer blends. Eur J Pharm Sci 2019; 130:260-268. [PMID: 30735824 DOI: 10.1016/j.ejps.2019.02.004] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 12/20/2018] [Accepted: 02/03/2019] [Indexed: 11/22/2022]
Abstract
A realistic molecular description of amorphous drug-polymer-plasticizer matrices, suitable for the preparation of amorphous solid dispersions (ASDs) with the aid of fusion-based techniques, was evaluated. Specifically, the incorporation of two model drugs (i.e. ibuprofen, IBU, and carbamazepine, CBZ) having substantially different thermal properties and glass forming ability, on the molecular representation of polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer (SOL)/polyethylene glycol (PEG, working as a plasticizer) molecular and thermal properties were evaluated with the aid of classical molecular dynamics (MD) and docking simulations. Results showed good agreement between molecular modelling estimations and experimentally determined properties. Specifically, the computed Tg values that resulted from MD simulations for IBU-SOL/PEG and CBZ-SOL/PEG (53.8 and 54.2 °C, respectively) were in reasonable agreement with the corresponding values resulting from differential scanning calorimetry (DSC) measurements (49.8 and 50.1 °C), while both molecular modelling and experimental obtained results suggested miscibility among system components. Additionally, interactions between CBZ and SOL observed during MD simulations were verified by FTIR analysis, while MD simulations of the hydration process suggested strong molecular interactions between IBU-SOL and CBZ-SOL.
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112
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Kumar A, Tyagi S, Singh R, Tyagi YK. Synthesis, characterisation and self-assembly studies of dendron-based novel non-ionic amphiphiles. NEW J CHEM 2019. [DOI: 10.1039/c8nj05143g] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A novel series of dendron-based non-ionic amphiphiles that aggregate to form supramolecular structures have been designed and synthesized using biocompatible starting materials.
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Affiliation(s)
- Ashwani Kumar
- University School of Basic and Applied Sciences
- Guru Gobind Singh Indraprastha University
- Dwarka
- India
| | - Shvetambri Tyagi
- Bhaskarcharya College of Applied Sciences
- University of Delhi
- Dwarka
- India
| | - Ram Singh
- Department of Applied Chemistry
- Delhi Technological University
- Rohini
- India
| | - Yogesh K. Tyagi
- University School of Basic and Applied Sciences
- Guru Gobind Singh Indraprastha University
- Dwarka
- India
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113
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Caparica R, Júlio A, Baby AR, Araújo MEM, Fernandes AS, Costa JG, Santos de Almeida T. Choline-Amino Acid Ionic Liquids as Green Functional Excipients to Enhance Drug Solubility. Pharmaceutics 2018; 10:pharmaceutics10040288. [PMID: 30572636 PMCID: PMC6321021 DOI: 10.3390/pharmaceutics10040288] [Citation(s) in RCA: 43] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 12/12/2018] [Accepted: 12/15/2018] [Indexed: 11/16/2022] Open
Abstract
The development of effective forms to incorporate poorly soluble drugs into delivery systems remains a problem. Thus, it is important to find alternatives such as finding excipients that increase drug solubility. Ionic liquids (ILs), particularly choline-based ILs, have been studied as solubility enhancers in drug delivery systems. Nonetheless, to acknowledge this property as a functionality, it needs to be proven at non-toxic concentrations. Hence, herein two choline-amino acid ILs were studied as functional excipients by evaluating their influence on the solubility of the poorly water-soluble ferulic acid and rutin, while considering their safety. The solubility of the drugs was always higher in the presence of the ILs than in water. Ionic liquids did not affect the radical scavenging activity of the drugs or the cell viability. Moreover, stable oil-in-water (O/W) emulsions were prepared containing each drug and the ILs, allowing a significantly higher drug loading. Globally, our results suggest that choline-based ILs may act as green functional excipients, since at non-toxic concentrations they considerably improve drug solubility/loading, without influencing the antioxidant activity of the drugs, the cell viability, or the stability of the formulations.
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Affiliation(s)
- Rita Caparica
- CBIOS-Universidade Lusófona's Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal.
- Department of Biomedical Sciences, University of Alcalá, Ctra. Madrid-Barcelona Km. 33.600, Alcalá de Henares, 28871 Madrid, Spain.
| | - Ana Júlio
- CBIOS-Universidade Lusófona's Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal.
- Department of Biomedical Sciences, University of Alcalá, Ctra. Madrid-Barcelona Km. 33.600, Alcalá de Henares, 28871 Madrid, Spain.
| | - André Rolim Baby
- Department of Pharmacy, School of Pharmaceutical Sciences, University of São Paulo, 580 Prof. Lineu Prestes Av., Bl. 15, São Paulo, SP 05508-900, Brazil.
| | | | - Ana Sofia Fernandes
- CBIOS-Universidade Lusófona's Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal.
| | - João Guilherme Costa
- CBIOS-Universidade Lusófona's Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal.
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, Av. Professor Gama Pinto, 1649-003 Lisboa, Portugal.
| | - Tânia Santos de Almeida
- CBIOS-Universidade Lusófona's Research Center for Biosciences & Health Technologies, Campo Grande 376, 1749-024 Lisboa, Portugal.
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114
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Ruepp S, Janovitz E, Brodie T, White R, Santella J, Hynes J, Carman J, Pan D, Wu Y, Hanumegowda U, Gemzik B, Megill J, DiPiero J, Drexler D, Su CC, Hageman M. Assessing the risk of drug crystallization in vivo. J Pharmacol Toxicol Methods 2018; 96:1-8. [PMID: 30553974 DOI: 10.1016/j.vascn.2018.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2018] [Revised: 11/20/2018] [Accepted: 12/12/2018] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Low intrinsic solubility leading to poor oral bioavailability is a common challenge in drug discovery that can often be overcome by formulation strategies, however, it remains a potential limitation that can pose challenges for early risk assessment and represent a significant obstacle to drug development. We identified a selective inhibitor (BMS-986126) of the IL-1 receptor-associated kinase 4 (IRAK4) with favorable properties as a lead candidate, but with unusually low intrinsic solubility of <1 μg/mL. METHODS Conventional histopathology identified the issue of crystal formation in vivo. Subsequent investigative work included confocal Raman micro-spectroscopy, MALDI-MS, polarized light microscopy of fresh wet-mount tissue scrapings and transmission electron microscopy. RESULTS BMS-986126 was advanced into a 2-week toxicology study in rats. The main finding in this study was minimal granulomatous inflammation in the duodenum, associated with the presence of birefringent crystals at the highest dosage of 100 mg/kg/day. Considering the safety margin, and the single location of the lesion, BMS-986126 was further progressed into IND-enabling toxicology studies where tolerability deteriorated with increasing dosing duration. Birefringent crystals and granulomatous inflammation were detected in multiple organs at dosages ≥20 mg/kg/day. Raman spectroscopy confirmed the identity of the crystals as BMS-986126. Therefore, follow up investigations were conducted to further characterize drug crystallization and to evaluate detection methods for their potential to reliably detect in vivo crystallization early. DISCUSSION The purpose of our efforts was to identify critical factors influencing in vivo drug crystallization and to provide a preliminary assessment (based on one compound) which method would be best suited for identifying crystals. Results indicated a combination of methods was required to provide a complete assessment of drug crystallization and that a simple technique, scraping of freshly collected tissue followed by evaluation under polarizing light was suitable for detecting crystals. However, dosing for 2 weeks was required for crystals to grow to a clearly detectable size.
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Affiliation(s)
- Stefan Ruepp
- Research & Development, Bristol-Myers Squibb Company, Princeton, NJ, USA.
| | - Evan Janovitz
- Research & Development, Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - Thomas Brodie
- Research & Development, Bristol-Myers Squibb Company, New Brunswick, NJ, USA
| | - Randy White
- Research & Development, Bristol-Myers Squibb Company, New Brunswick, NJ, USA
| | - Joseph Santella
- Research & Development, Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - John Hynes
- Research & Development, Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - Julie Carman
- Research & Development, Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - Duohai Pan
- Research & Development, Bristol-Myers Squibb Company, New Brunswick, NJ, USA
| | - Yang Wu
- Research & Development, Bristol-Myers Squibb Company, Wallingford, CT, USA
| | - Umesh Hanumegowda
- Research & Development, Bristol-Myers Squibb Company, Wallingford, CT, USA; ViiV Healthcare, Wallingford, CT, USA
| | - Brian Gemzik
- Research & Development, Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - John Megill
- Research & Development, Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - Janet DiPiero
- Research & Development, Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - Dieter Drexler
- Research & Development, Bristol-Myers Squibb Company, Wallingford, CT, USA
| | - Ching-Chiang Su
- Research & Development, Bristol-Myers Squibb Company, Princeton, NJ, USA
| | - Michael Hageman
- Research & Development, Bristol-Myers Squibb Company, Princeton, NJ, USA; University of Kansas, Lawrence, KS, USA
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115
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Zhang J, Zhang J, Wang S, Yi T. Development of an Oral Compound Pickering Emulsion Composed of Nanocrystals of Poorly Soluble Ingredient and Volatile Oils from Traditional Chinese Medicine. Pharmaceutics 2018; 10:pharmaceutics10040170. [PMID: 30275390 PMCID: PMC6321358 DOI: 10.3390/pharmaceutics10040170] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2018] [Revised: 09/27/2018] [Accepted: 09/28/2018] [Indexed: 12/14/2022] Open
Abstract
In this study, an oral drug nanocrystals self-stabilized Pickering emulsion (NSSPE), which used nanocrystals of a poorly soluble ingredient from Puerariae Radix called puerarin as solid particle stabilizers and Ligusticumchuanxiong essential oil since the main oil phase had been developed to improve the oral bioavailability of puerarin. The appearance of emulsions, size and zeta potential of droplets, and content of puerarin in emulsified layer during a storage of six months at 4, 25, and 40 °C were investigated. The centrifugation stability at 4000× g was also studied. The micro-structure of emulsion droplets was characterized by a scanning electron micrograph (SEM), confocal laser scanning microscopy (CLSM), a fluorescence microscope (FM), and differential scanning calorimetry (DSC). The in vivo oral bioavailability of puerarin NSSPE was investigated in rats. Results showed that appearances of puerarin NSSPE kept stable after centrifugation at 4000× g for 15 min or storage for six months at 4, 25, and 40 °C. SEM, CLSM, FM, and DSC showed that the puerarin NSSPE had a stable core-shell structure of emulsion droplets formed by the adsorption of puerarin nanocrystals on the surface of oil droplets of mixed oil of Ligusticumchuanxiong essential oil and Labrafil M 1944 CS (9:1, v/v). The relative bioavailability of puerarin NSSPE to puerarin coarse powder suspension, nanocrystal suspension, and surfactant emulsion were 262.43%, 155.92%, and 223.65%, respectively. All these results indicated that puerarin nanocrystals could stabilize Pickering emulsion of Ligusticumchuanxiong essential oil without any other stabilizers and Pickering emulsion could improve the oral bioavailability of puerarin, which suggests that the drug nanocrystal self-stabilized Pickering emulsion as a promising oral drug delivery system for Traditional Chinese Medicine containing poorly soluble ingredients and volatile oils.
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Affiliation(s)
- Jifen Zhang
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
| | - Jiao Zhang
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
- Neijiang Medical School of Sichuan Province, Neijiang 641100, China.
| | - Shuai Wang
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400716, China.
| | - Tao Yi
- School of Health Sciences, Macao Polytechnic Institute, Macau 00853, China.
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116
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Turpin ER, Taresco V, Al-Hachami WA, Booth J, Treacher K, Tomasi S, Alexander C, Burley J, Laughton CA, Garnett MC. In Silico Screening for Solid Dispersions: The Trouble with Solubility Parameters and χFH. Mol Pharm 2018; 15:4654-4667. [PMID: 30142269 DOI: 10.1021/acs.molpharmaceut.8b00637] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The problem of predicting small molecule-polymer compatibility is relevant to many areas of chemistry and pharmaceutical science but particularly drug delivery. Computational methods based on Hildebrand and Hansen solubility parameters, and the estimation of the Flory-Huggins parameter, χ, have proliferated across the literature. Focusing on the need to develop amorphous solid dispersions to improve the bioavailability of poorly soluble drug candidates, an innovative, high-throughput 2D printing method has been employed to rapidly assess the compatibility of 54 drug-polymer pairings (nine drug compounds in six polymers). In this study, the first systematic assessment of the in silico methods for this application, neither the solubility parameter approach nor the calculated χ, correctly predicted drug-polymer compatibility. The theoretical limitations of the solubility parameter approach are discussed and used to explain why this approach is fundamentally unsuitable for predicting polymer-drug interactions. Examination of the original sources describing the method for calculating χ shows that only the enthalpic contributions to the term have been included, and the corrective entropic term is absent. The development and application of new in silico techniques, that consider all parts of the free energy of mixing, are needed in order to usefully predict small molecule-polymer compatibility and to realize the ambition of a drug-polymer screening method.
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Affiliation(s)
- Eleanor R Turpin
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Vincenzo Taresco
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Wathiq A Al-Hachami
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | | | | | | | - Cameron Alexander
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Jonathan Burley
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Charles A Laughton
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
| | - Martin C Garnett
- School of Pharmacy , University of Nottingham , University Park , Nottingham NG7 2RD , U.K
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