1
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Zografi G, Newman A, Shalaev E. Structural Features of the Glassy State and Their Impact on the Solid-State Properties of Organic Molecules in Pharmaceutical Systems. J Pharm Sci 2024:S0022-3549(24)00186-2. [PMID: 38768756 DOI: 10.1016/j.xphs.2024.05.014] [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: 03/19/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/22/2024]
Abstract
This paper reviews the structure and properties of amorphous active pharmaceutical ingredients (APIs), including small molecules and proteins, in the glassy state (below the glass transition temperature, Tg). Amorphous materials in the neat state and formulated with excipients as miscible amorphous mixtures are included, and the role of absorbed water in affecting glass structure and stability has also been considered. We defined the term "structure" to indicate the way the various molecules in a glass interact with each other and form distinctive molecular arrangements as regions or domains of varying number of molecules, molecular packing, and density. Evidence is presented to suggest that such systems generally exist as heterogeneous structures made up of high-density domains surrounded by a lower density arrangement of molecules, termed the microstructure. It has been shown that the method of preparation and the time frame for handling and storage can give rise to variable glass structures and varying physical properties. Throughout this paper, examples are given of theoretical, computer simulation, and experimental studies which focus on the nature of intermolecular interactions, the size of heterogeneous higher density domains, and the impact of such systems on the relative physical and chemical stability of pharmaceutical systems.
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Affiliation(s)
- George Zografi
- School of Pharmacy, University of Wisconsin-Madison, Madison WI
| | - Ann Newman
- Seventh Street Development Group LLC, Kure Beach NC.
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2
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Considerations in the Development of Physically Stable High Drug Load API- Polymer Amorphous Solid Dispersions in the Glassy State. J Pharm Sci 2023; 112:8-18. [PMID: 35948156 DOI: 10.1016/j.xphs.2022.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/04/2022] [Accepted: 08/04/2022] [Indexed: 02/05/2023]
Abstract
In this Commentary, the authors expand on their earlier studies of the solid-state long-term isothermal crystallization of amorphous API from the glassy state in amorphous solid dispersions, and focus on the effects of polymer concentration, and its implications for producing high load API doses with minimum polymer concentration. After presenting an overview of the various mechanistic factors which influence the ability of polymers to inhibit API crystallization, including the chemical structure of the polymer relative to the API, the nature and strength of API-polymer noncovalent interactions, polymer molecular weight, impact on primary diffusive molecular mobility, as well as on secondary motions in the bulk and surface phases of the glass, we consider in more detail, the effects of polymer concentration. Here, we examine the factors that appear to allow relatively low polymer concentrations, i.e., less than 10%w/w polymer, to greatly reduce crystallization, including a focus on the heterogeneous structure of the glassy state, and the possible spatial distribution and concentration of polymer in certain key regions of the glass. This is followed by a review and analysis of examples in the recent literature focused on determining the minimum polymer concentration in an amorphous solid dispersion, capable of producing optimally stable high drug load amorphous dispersions.
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3
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Highly tunable β-relaxation enables the tailoring of crystallization in phase-change materials. Nat Commun 2022; 13:7352. [DOI: 10.1038/s41467-022-35005-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 11/15/2022] [Indexed: 11/30/2022] Open
Abstract
AbstractIn glasses, secondary (β-) relaxations are the predominant source of atomic dynamics. Recently, they have been discovered in covalently bonded glasses, i.e., amorphous phase-change materials (PCMs). However, it is unclear what the mechanism of β-relaxations is in covalent systems and how they are related to crystallization behaviors of PCMs that are crucial properties for non-volatile memories and neuromorphic applications. Here we show direct evidence that crystallization is strongly linked to β-relaxations. We find that the β-relaxation in Ge15Sb85 possesses a high tunability, which enables a manipulation of crystallization kinetics by an order of magnitude. In-situ synchrotron X-ray scattering, dielectric functions, and ab-initio calculations indicate that the weakened β-relaxation intensity stems from a local reinforcement of Peierls-like distortions, which increases the rigidity of the bonding network and decreases the dynamic heterogeneity. Our findings offer a conceptually new approach to tuning the crystallization of PCMs based on manipulating the β-relaxations.
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4
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Study of Thermal Properties, Molecular Dynamics, and Physical Stability of Etoricoxib Mixtures with Octaacetylmaltose near the Glass Transition. Int J Mol Sci 2022; 23:ijms23179794. [PMID: 36077212 PMCID: PMC9456116 DOI: 10.3390/ijms23179794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Revised: 08/24/2022] [Accepted: 08/26/2022] [Indexed: 11/16/2022] Open
Abstract
In this paper, we thoroughly investigated the physical stability of the anti-inflammatory drug etoricoxib, which has been reported earlier to be resistant to recrystallization in its glassy and supercooled states at ambient pressure. Our unique application of the standard refractometry technique showed that the supercooled liquid of the drug was able to recrystallize during isothermal experiments in atmospheric conditions. This enabled us to determine the crystallization onset timescale and nucleation energy barrier of etoricoxib for the first time. As the physical instability of etoricoxib requires working out an efficient method for improving the drug’s resistance to recrystallization to maintain its amorphous form utility in potential pharmaceutical applications, we focused on finding a solution to this problem, and successfully achieved this purpose by preparing binary mixtures of etoricoxib with octaacetylmaltose. Our detailed thermal, refractometry, and molecular dynamics studies of the binary compositions near the glass transition revealed a peculiar behavior of the glass transition temperatures when changing the acetylated disaccharide concentration in the mixtures. Consequently, the anti-plasticization effect on the enhancement of physical stability could be excluded, and a key role for specific interactions in the improved resistance to recrystallization was expected. Invoking our previous results obtained for etoricoxib, the chemically similar drug celecoxib, and octaacetylmaltose, we formulated a hypothesis about the molecular mechanisms that may cause an impediment to crystal nuclei formation in the amorphous mixtures of etoricoxib with octaacetylmaltose. The most plausible scenario may rely on the formation of hydrogen-bonded heterodimers of the drug and excipient molecules, and the related drop in the population of the etoricoxib homodimers, which disables the nucleation. Nevertheless, this hypothesis requires further investigation. Additionally, we tested some widely discussed correlations between molecular mobility and crystallization properties, which turned out to be only partially satisfied for the examined mixtures. Our findings constitute not only a warning against manufacturing the amorphous form of pure etoricoxib, but also evidence for a promising outcome for the pharmaceutical application of the amorphous compositions with octaacetylmaltose.
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Łucak K, Kramarczyk D, Janus O, Pawlus S. How differences in the molecular structure of monohydroxy alcohols affect the tendency to crystallization. THE EUROPEAN PHYSICAL JOURNAL. E, SOFT MATTER 2022; 45:64. [PMID: 35917038 DOI: 10.1140/epje/s10189-022-00215-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 06/26/2022] [Indexed: 06/15/2023]
Abstract
The tendency to crystallize was studied in the selected monohydroxy alcohols: 1-chloro-2-methyl-2-propanol, 1-chloro-2-propanol, 3-chloro-1-propanol, and 8-chloro-1-octanol. Performed calorimetric measurements have proved that the differences in structures of tested alcohols influence the tendency to crystallization. At a sufficiently fast heating rate, no crystallization was observed in the case of 1-chloro-2-propanol and 3-chloro-1-propanol, contrary to other two alcohols. The obtained results suggest that elongation of the alkyl chain or adding a methyl group to the hydrocarbon backbone increases the susceptibility to crystallization.
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Affiliation(s)
- Kinga Łucak
- Institute of Physics of the University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500, Chorzów, Poland.
| | - Daniel Kramarczyk
- Institute of Physics of the University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500, Chorzów, Poland
| | - Oliwia Janus
- Institute of Physics of the University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500, Chorzów, Poland
| | - Sebastian Pawlus
- Institute of Physics of the University of Silesia in Katowice, 75 Pułku Piechoty 1, 41-500, Chorzów, Poland
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6
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Minecka A, Tarnacka M, Jurkiewicz K, Hachuła B, Wrzalik R, Bródka A, Kamiński K, Kamińska E. The impact of the size of acetylated cyclodextrin on the stability of amorphous metronidazole. Int J Pharm 2022; 624:122025. [PMID: 35850185 DOI: 10.1016/j.ijpharm.2022.122025] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Revised: 07/01/2022] [Accepted: 07/13/2022] [Indexed: 11/27/2022]
Abstract
Modified oligosaccharides with cyclic topology seem to be promising excipients for the preparation of Amorphous Solid Dispersions (ASDs), especially with those Active Pharmaceutical Ingredients (APIs), which have a strong crystallization tendency from the amorphous/glassy state. Herein, the usefulness of two acetylated cyclodextrins (ac-α-CD and ac-β-CD) with various molecular weights (Mw) as stabilizers for the supercooled metronidazole (Met) has been discussed. X-ray diffraction (XRD) studies carried out on Met-acCDs mixtures (prepared in molar ratios from 1:2 to 5:1) showed that the system with ac-α-CD containing the highest amount of API (5:1 m/m) crystallizes immediately after preparation, whereas all Met-ac-β-CD ASDs remain stable. What is more, long-term XRD measurements confirmed that the Met-ac-α-CD 2:1 m/m system crystallizes after 100 days of storage in contrast to the same system containing ac-β-CD. The non-isothermal calorimetric data revealed that the activation barrier for crystallization (Ecr) in ASDs with the oligosaccharide having a greater Mw (i.e., composed of seven acGLU molecules) is slightly higher. Finally, to explain the differences in behavior between the mixtures with both acCDs, infrared studies, DFT calculations and Molecular Dynamics simulations were performed. All methods excluded the scenario of API incorporation inside the acCDs' core. On the other hand, obtained results suggested that in comparison to ac-α-CD, the greater amount of Met molecules might be bounded on the outside surface of ac-β-CD. Therefore, this modified saccharide is a better stabilizer of the examined API.
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Affiliation(s)
- Aldona Minecka
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 41-200 Sosnowiec, Poland.
| | - Magdalena Tarnacka
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 41-500 Chorzow, Poland
| | - Karolina Jurkiewicz
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 41-500 Chorzow, Poland
| | - Barbara Hachuła
- Institute of Chemistry, University of Silesia, 40-006 Katowice, Poland
| | - Roman Wrzalik
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 41-500 Chorzow, Poland
| | - Aleksander Bródka
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 41-500 Chorzow, Poland
| | - Kamil Kamiński
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 41-500 Chorzow, Poland
| | - Ewa Kamińska
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, 41-200 Sosnowiec, Poland.
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7
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Cao Y, Noori M, Nazari M, Ng Kay Lup A, Soltani A, Erfani-Moghadam V, Salehi A, Aghaei M, Lutfor Rahman M, Sani Sarjadi M, Sarkar SM, Su CH. Molecular docking evaluation of celecoxib on the boron nitride nanostructures for alleviation of cardiovascular risk and inflammatory. ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2021.103521] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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8
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Al-Obaidi H, Granger A, Hibbard T, Opesanwo S. Pulmonary Drug Delivery of Antimicrobials and Anticancer Drugs Using Solid Dispersions. Pharmaceutics 2021; 13:1056. [PMID: 34371747 PMCID: PMC8309119 DOI: 10.3390/pharmaceutics13071056] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 07/05/2021] [Accepted: 07/06/2021] [Indexed: 01/03/2023] Open
Abstract
It is well established that currently available inhaled drug formulations are associated with extremely low lung deposition. Currently available technologies alleviate this low deposition problem via mixing the drug with inert larger particles, such as lactose monohydrate. Those inert particles are retained in the inhalation device or impacted in the throat and swallowed, allowing the smaller drug particles to continue their journey towards the lungs. While this seems like a practical approach, in some formulations, the ratio between the carrier to drug particles can be as much as 30 to 1. This limitation becomes more critical when treating lung conditions that inherently require large doses of the drug, such as antibiotics and antivirals that treat lung infections and anticancer drugs. The focus of this review article is to review the recent advancements in carrier free technologies that are based on coamorphous solid dispersions and cocrystals that can improve flow properties, and help with delivering larger doses of the drug to the lungs.
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Affiliation(s)
- Hisham Al-Obaidi
- The School of Pharmacy, University of Reading, Reading RG6 6AD, UK; (A.G.); (T.H.); (S.O.)
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9
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Hultmark S, Cravcenco A, Kushwaha K, Mallick S, Erhart P, Börjesson K, Müller C. Vitrification of octonary perylene mixtures with ultralow fragility. SCIENCE ADVANCES 2021; 7:7/29/eabi4659. [PMID: 34272241 PMCID: PMC8284888 DOI: 10.1126/sciadv.abi4659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2021] [Accepted: 06/02/2021] [Indexed: 05/08/2023]
Abstract
Strong glass formers with a low fragility are highly sought-after because of the technological importance of vitrification. In the case of organic molecules and polymers, the lowest fragility values have been reported for single-component materials. Here, we establish that mixing of organic molecules can result in a marked reduction in fragility. Individual bay-substituted perylene derivatives display a high fragility of more than 70. Instead, slowly cooled perylene mixtures with more than three components undergo a liquid-liquid transition and turn into a strong glass former. Octonary perylene mixtures display a fragility of 13 ± 2, which not only is a record low value for organic molecules but also lies below values reported for the strongest known inorganic glass formers. Our work opens an avenue for the design of ultrastrong organic glass formers, which can be anticipated to find use in pharmaceutical science and organic electronics.
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Affiliation(s)
- Sandra Hultmark
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 41296 Göteborg, Sweden
| | - Alex Cravcenco
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemigården 4, 41296 Göteborg, Sweden
| | - Khushbu Kushwaha
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemigården 4, 41296 Göteborg, Sweden
| | - Suman Mallick
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemigården 4, 41296 Göteborg, Sweden
| | - Paul Erhart
- Department of Physics, Chalmers University of Technology, 41296 Göteborg, Sweden
| | - Karl Börjesson
- Department of Chemistry and Molecular Biology, University of Gothenburg, Kemigården 4, 41296 Göteborg, Sweden
| | - Christian Müller
- Department of Chemistry and Chemical Engineering, Chalmers University of Technology, 41296 Göteborg, Sweden.
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10
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Combinations of Freeze-Dried Amorphous Vardenafil Hydrochloride with Saccharides as a Way to Enhance Dissolution Rate and Permeability. Pharmaceuticals (Basel) 2021; 14:ph14050453. [PMID: 34064796 PMCID: PMC8151567 DOI: 10.3390/ph14050453] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 12/16/2022] Open
Abstract
To improve physicochemical properties of vardenafil hydrochloride (VAR), its amorphous form and combinations with excipients-hydroxypropyl methylcellulose (HPMC) and β-cyclodextrin (β-CD)-were prepared. The impact of the modification on physicochemical properties was estimated by comparing amorphous mixtures of VAR to their crystalline form. The amorphous form of VAR was obtained as a result of the freeze-drying process. Confirmation of the identity of the amorphous dispersion of VAR was obtained through the use of comprehensive analysis techniques-X-ray powder diffraction (PXRD) and differential scanning calorimetry (DSC), supported by FT-IR (Fourier-transform infrared spectroscopy) coupled with density functional theory (DFT) calculations. The amorphous mixtures of VAR increased its apparent solubility compared to the crystalline form. Moreover, a nearly 1.3-fold increase of amorphous VAR permeability through membranes simulating gastrointestinal epithelium as a consequence of the changes of apparent solubility (Papp crystalline VAR = 6.83 × 10-6 cm/s vs. Papp amorphous VAR = 8.75 × 10-6 cm/s) was observed, especially for its combinations with β-CD in the ratio of 1:5-more than 1.5-fold increase (Papp amorphous VAR = 8.75 × 10-6 cm/s vs. Papp amorphous VAR:β-CD 1:5 = 13.43 × 10-6 cm/s). The stability of the amorphous VAR was confirmed for 7 months. The HPMC and β-CD are effective modifiers of its apparent solubility and permeation through membranes simulating gastrointestinal epithelium, suggesting a possibility of a stronger pharmacological effect.
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Pacułt J, Rams-Baron M, Chmiel K, Jurkiewicz K, Antosik A, Szafraniec J, Kurek M, Jachowicz R, Paluch M. How can we improve the physical stability of co-amorphous system containing flutamide and bicalutamide? The case of ternary amorphous solid dispersions. Eur J Pharm Sci 2021; 159:105697. [PMID: 33568330 DOI: 10.1016/j.ejps.2020.105697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The article describes the preparation and characterization of binary mixtures of two antiandrogens used in prostate cancer treatment, i.e. flutamide (FL) and bicalutamide (BIC), as well as their ternary mixtures with either poly(methyl methacrylate-co-ethyl acrylate) (MMA/EA) or polyvinylpyrrolidone (PVP). The samples were converted into amorphous form to improve their water solubility and dissolution rate. Broadband dielectric spectroscopy and differential scanning calorimetry revealed that FL-BIC (65%) (w/w) does not tend to crystallize from the supercooled liquid state. We made the assumption that the drug-to-drug weight ratio should be maintained as in the case of monotherapy so we decided to investigate the system containing FL and BIC in 15:1 (w/w) ratio with 30% additive of polymers as stabilizers. Our research has shown that only in the case of the FL-BIC-PVP mixture the crystallization has been completely inhibited, both in glassy and supercooled liquid state, which was confirmed by X-ray diffraction studies. In addition, we performed solubility and dissolution rate tests, which showed a significant improvement in solubility of ternary system as compared to its crystalline counterpart. Enhanced physical stability and water solubility of the amorphous ternary system makes it promising for further studies.
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Affiliation(s)
- Justyna Pacułt
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Marzena Rams-Baron
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland.
| | - Krzysztof Chmiel
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Karolina Jurkiewicz
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Agata Antosik
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Joanna Szafraniec
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Mateusz Kurek
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Renata Jachowicz
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Marian Paluch
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
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12
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Knapik-Kowalczuk J, Rams-Baron M, Paluch M. Current research trends in dielectric relaxation studies of amorphous pharmaceuticals: Physical stability, tautomerism, and the role of hydrogen bonding. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116097] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Minecka A, Tarnacka M, Jurkiewicz K, Hachuła B, Wrzalik R, Kamiński K, Paluch M, Kamińska E. Impact of the Chain Length and Topology of the Acetylated Oligosaccharide on the Crystallization Tendency of Naproxen from Amorphous Binary Mixtures. Mol Pharm 2020; 18:347-358. [PMID: 33355470 PMCID: PMC7872431 DOI: 10.1021/acs.molpharmaceut.0c00982] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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The impact of the chain length or
dispersity of polymers in controlling
the crystallization of amorphous active pharmaceutical ingredients
(APIs) has been discussed for a long time. However, because of the
weak control of these parameters in the majority of macromolecules
used in pharmaceutical formulations, the abovementioned topic is poorly
understood. Herein, four acetylated oligosaccharides, maltose (acMAL),
raffinose (acRAF), stachyose (acSTA), and α-cyclodextrin (ac-α-CD)
of growing chain lengths and different topologies (linear vs cyclic), mimicking the growing backbone of the polymer,
were selected to probe the influence of these structural factors on
the crystallization of naproxen (NAP)—an API that does not
vitrify regardless of the cooling rate applied in our experiment.
It was found that in equimolar systems composed of NAP and linear
acetylated oligosaccharides, the progress and activation barrier for
crystallization are dependent on the molecular weight of the excipient
despite the fact that results of Fourier transform infrared studies
indicated that there is no difference in the interaction pattern between
measured samples. On the other hand, complementary dielectric, calorimetric,
and X-ray diffraction data clearly demonstrated that NAP mixed with
ac-α-CD (cyclic saccharide) does not tend to crystallize even
in the system with a much higher content of APIs. To explain this
interesting finding, we have carried out further density functional
theory computations, which revealed that incorporation of NAP into
the cavity of ac-α-CD is hardly possible because this state
is of much higher energy (up to 80 kJ/mol) with respect to the one
where the API is located outside of the saccharide torus. Hence, although
at the moment, it is very difficult to explain the much stronger impact
of the cyclic saccharide on the suppression of crystallization and
enhanced stability of NAP with respect to the linear carbohydrates,
our studies clearly showed that the chain length and the topology
of the excipient play a significant role in controlling the crystallization
of this API.
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Affiliation(s)
- Aldona Minecka
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - Magdalena Tarnacka
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Karolina Jurkiewicz
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Barbara Hachuła
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
| | - Roman Wrzalik
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Kamil Kamiński
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Marian Paluch
- A. Chelkowski Institute of Physics, University of Silesia in Katowice, 75 Pulku Piechoty 1, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Ewa Kamińska
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland
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14
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Grzybowska K, Grzybowski A, Knapik-Kowalczuk J, Chmiel K, Woyna-Orlewicz K, Szafraniec-Szczęsny J, Antosik-Rogóż A, Jachowicz R, Kowalska-Szojda K, Lodowski P, Paluch M. Molecular Dynamics and Physical Stability of Ibuprofen in Binary Mixtures with an Acetylated Derivative of Maltose. Mol Pharm 2020; 17:3087-3105. [PMID: 32584584 PMCID: PMC7467776 DOI: 10.1021/acs.molpharmaceut.0c00517] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this paper, we explore the strategy increasingly used to improve the bioavailability of poorly water-soluble crystalline drugs by formulating their amorphous solid dispersions. We focus on the potential application of a low molecular weight excipient octaacetyl-maltose (acMAL) to prepare physically stable amorphous solid dispersions with ibuprofen (IBU) aimed at enhancing water solubility of the drug compared to that of its crystalline counterpart. We thoroughly investigate global and local molecular dynamics, thermal properties, and physical stability of the IBU+acMAL binary systems by using broadband dielectric spectroscopy and differential scanning calorimetry as well as test their water solubility and dissolution rate. The obtained results are extensively discussed by analyzing several factors considered to affect the physical stability of amorphous systems, including those related to the global mobility, such as plasticization/antiplasticization effects, the activation energy, fragility parameter, and the number of dynamically correlated molecules as well as specific intermolecular interactions like hydrogen bonds, supporting the latter by density functional theory calculations. The observations made for the IBU+acMAL binary systems and drawn recommendations give a better insight into our understanding of molecular mechanisms governing the physical stability of amorphous solid dispersions.
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Affiliation(s)
- Katarzyna Grzybowska
- Institute of Physics, University of Silesia in Katowice, ul. 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.,Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Andrzej Grzybowski
- Institute of Physics, University of Silesia in Katowice, ul. 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.,Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Justyna Knapik-Kowalczuk
- Institute of Physics, University of Silesia in Katowice, ul. 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.,Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Krzysztof Chmiel
- Institute of Physics, University of Silesia in Katowice, ul. 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.,Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Krzysztof Woyna-Orlewicz
- Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Joanna Szafraniec-Szczęsny
- Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Agata Antosik-Rogóż
- Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Renata Jachowicz
- Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Jagiellonian University Medical College, Medyczna 9, 30-688 Kraków, Poland
| | - Katarzyna Kowalska-Szojda
- Institute of Chemistry, University of Silesia in Katowice, Szkolna Street 9, 40-006 Katowice, Poland
| | - Piotr Lodowski
- Institute of Chemistry, University of Silesia in Katowice, Szkolna Street 9, 40-006 Katowice, Poland
| | - Marian Paluch
- Institute of Physics, University of Silesia in Katowice, ul. 75 Pułku Piechoty 1, 41-500 Chorzów, Poland.,Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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15
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Knapik-Kowalczuk J, Chmiel K, Pacułt J, Bialek K, Tajber L, Paluch M. Enhancement of the Physical Stability of Amorphous Sildenafil in a Binary Mixture, with either a Plasticizing or Antiplasticizing Compound. Pharmaceutics 2020; 12:pharmaceutics12050460. [PMID: 32443637 PMCID: PMC7284710 DOI: 10.3390/pharmaceutics12050460] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Revised: 05/11/2020] [Accepted: 05/12/2020] [Indexed: 12/29/2022] Open
Abstract
The main purpose of this paper was to evaluate the impact of both high- and low-Tg polymer additives on the physical stability of an amorphous drug, sildenafil (SIL). The molecular mobility of neat amorphous SIL was strongly affected by the polymeric excipients used (Kollidon VA64 (KVA) and poly(vinylacetate) (PVAc)). The addition of KVA slowed down the molecular dynamics of amorphous SIL (antiplasticizing effect), however, the addition of PVAc accelerated the molecular motions of the neat drug (plasticizing effect). Therefore, in order to properly assess the effect of the polymer on the physical stability of SIL, the amorphous samples at both: isothermal (at constant temperature—353 K) and isochronal (at constant relaxation time—τα = 1.5 ms) conditions were compared. Our studies showed that KVA suppressed the recrystallization of amorphous SIL more efficiently than PVAc. KVA improved the physical stability of the amorphous drug, regardless of the chosen concentration. On the other hand, in the case of PVAc, a low polymer content (i.e., 25 wt.%) destabilized amorphous SIL, when stored at 353 K. Nevertheless, at high concentrations of this excipient (i.e., 75 wt.%), its effect on the amorphous pharmaceutical seemed to be the opposite. Therefore, above a certain concentration, the PVAc presence no longer accelerates the SIL recrystallization process, but inhibits it.
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Affiliation(s)
- Justyna Knapik-Kowalczuk
- Institute of Physics, Faculty of Science and Technology University of Silesia, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland; (J.K.-K.); (J.P.); (M.P.)
| | - Krzysztof Chmiel
- Institute of Physics, Faculty of Science and Technology University of Silesia, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland; (J.K.-K.); (J.P.); (M.P.)
- Correspondence:
| | - Justyna Pacułt
- Institute of Physics, Faculty of Science and Technology University of Silesia, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland; (J.K.-K.); (J.P.); (M.P.)
| | - Klaudia Bialek
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin 2, Ireland; (K.B.); (L.T.)
| | - Lidia Tajber
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin 2, Ireland; (K.B.); (L.T.)
| | - Marian Paluch
- Institute of Physics, Faculty of Science and Technology University of Silesia, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland; (J.K.-K.); (J.P.); (M.P.)
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16
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Knapik-Kowalczuk J, Kramarczyk D, Chmiel K, Romanova J, Kawakami K, Paluch M. Importance of Mesoporous Silica Particle Size in the Stabilization of Amorphous Pharmaceuticals-The Case of Simvastatin. Pharmaceutics 2020; 12:E384. [PMID: 32331310 PMCID: PMC7238159 DOI: 10.3390/pharmaceutics12040384] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Revised: 04/12/2020] [Accepted: 04/14/2020] [Indexed: 11/16/2022] Open
Abstract
In this paper, the role of mesoporous silica (MS) particle size in the stabilization of amorphous simvastatin (SVT) is revealed. For inhibiting recrystallization of the supercooled drug, the two MS materials (Syloid® XDP 3050 and Syloid® 244 FP) were employed. The crystallization tendency of SVT alone and in mixture with the MS materials was investigated by Differential Scanning Calorimetry (DSC) and Broadband Dielectric Spectroscopy (BDS). Neither confinement of the SVT molecules inside the MS pores nor molecular interactions between functional groups of the SVT molecules and the surface of the stabilizing excipient could explain the observed stabilization effect. The stabilization effect might be correlated with diffusion length of the SVT molecules in the MS materials that depended on the particle size. Moreover, MS materials possessing different particle sizes could offer free spaces with different sizes, which might influence crystal growth of SVT. All of these factors must be considered when mesoporous materials are used for stabilizing pharmaceutical glasses.
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Affiliation(s)
- Justyna Knapik-Kowalczuk
- Faculty of Science and Technology, Institute of Physics, University of Silesia, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
| | - Daniel Kramarczyk
- Faculty of Science and Technology, Institute of Physics, University of Silesia, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Krzysztof Chmiel
- Faculty of Science and Technology, Institute of Physics, University of Silesia, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Jana Romanova
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
- Department of Physical Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, 532 10 Pardubice, Czech Republic
| | - Kohsaku Kawakami
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, Tsukuba, Ibaraki 305-0044, Japan
| | - Marian Paluch
- Faculty of Science and Technology, Institute of Physics, University of Silesia, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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17
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Kamińska E, Minecka A, Tarnacka M, Hachuła B, Kamiński K, Paluch M. Influence of Annealing in the Close Vicinity of Tg on the Reorganization within Dimers and Its Impact on the Crystallization Kinetics of Gemfibrozil. Mol Pharm 2020; 17:990-1000. [PMID: 31961694 PMCID: PMC7588139 DOI: 10.1021/acs.molpharmaceut.9b01244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this paper, broadband dielectric spectroscopy (BDS) has been applied to study the molecular dynamics and crystallization kinetics of the antihyperlipidemic active pharmaceutical ingredient (API), gemfibrozil (GEM), as well as its deuterated (dGEM) and methylated (metGEM) derivatives, characterized by different types and strengths of intermolecular interactions. Moreover, calorimetric and infrared measurements have been carried out to characterize the thermal properties of examined samples and to probe a change in the H-bonding pattern in GEM, respectively. We found that the dielectric spectra of all examined compounds, collected below the glass transition temperature (Tg), reveal the presence of two secondary relaxations (β, γ). According to the coupling model (CM) predictions, it was assumed that the slower process (β) is of JG type, whereas the faster one (γ) has an intramolecular origin. Interestingly, the extensive crystallization kinetics measurements performed after applying two paths, i.e., the standard procedure (cooling and subsequently heating up to the appropriate temperature, Tc), as well as annealing at two temperatures in the vicinity of Tg and further heating up to Tc, showed that the annealing increases the crystallization rate in the case of native API, while the thermal history of the sample has no significant impact on the pace of this process in the two derivatives of GEM. Analysis of the dielectric strength (Δε) of the α-process during annealing, together with the results of Fourier transform infrared spectroscopy (FTIR) measurements, suggested that the reorganization within dimeric structures formed between the GEM molecules is responsible for the observed behavior. Importantly, our results differ from those obtained by Tominaka et al. (Tominaka, S.; Kawakami, K.; Fukushima, M.; Miyazaki, A.Physical Stabilization of Pharmaceutical Glasses Based on Hydrogen Bond Reorganization under Sub-Tg Temperature Mol. Pharm. 2017 14 264 273 10.1021/acs.molpharmaceut.6b00866.), who demonstrated that the sub-Tg annealing of ritonavir (RTV), which is able to form extensive supramolecular hydrogen bonds, protects this active substance against crystallization. Therefore, based on these contradictory reports, one can hypothesize that materials forming H-bonded structures, characterized by varying architecture, may behave differently after annealing in the vicinity of the glass transition temperature.
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Affiliation(s)
- Ewa Kamińska
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - Aldona Minecka
- Department of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences in Sosnowiec, Medical University of Silesia in Katowice, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - Magdalena Tarnacka
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Barbara Hachuła
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
| | - Kamil Kamiński
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - Marian Paluch
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland.,Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
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18
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Minecka A, Kamińska E, Tarnacka M, Jurkiewicz K, Talik A, Wolnica K, Dulski M, Kasprzycka A, Spychalska P, Garbacz G, Kamiński K, Paluch M. Does the molecular mobility and flexibility of the saccharide ring affect the glass-forming ability of naproxen in binary mixtures? Eur J Pharm Sci 2020; 141:105091. [PMID: 31655208 DOI: 10.1016/j.ejps.2019.105091] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2019] [Revised: 09/23/2019] [Accepted: 09/25/2019] [Indexed: 12/15/2022]
Abstract
In this paper, we studied the impact of saccharides having a similar backbone but differing in the degree of freedom, local molecular mobility, flexibility of the ring and intermolecular interactions on the glass-forming ability (GFA) of naproxen (NAP) in binary mixtures. For this purpose, a series of methyl and acetyl derivatives of glucose (GLS) and anhydroglucose (anhGLS), as well as neat anhGLS have been used to produce homogeneous solid dispersions (SDs) of varying molar concentration of examined active pharmaceutical ingredient (API). Systematic measurements with the use of Differential Scanning Calorimetry (DSC) and Broadband Dielectric Spectroscopy (BDS) enabled us to determine the phase transitions, homogeneity and molecular mobility of the investigated binary mixtures as well as the impact of excipient on the crystallization tendency of NAP. It turned out that acetylated glucose (acGLS), one of the most mobile and flexible saccharides of all examined herein materials, is the best excipient enhancing the GFA of studied API. Although, it should be noted that upon storage at room temperature, we observed the recrystallization of NAP from binary mixtures. Interestingly, API always crystallized to the initial polymorphic form, as shown by X-ray diffraction (XRD) investigations. Finally, since additional measurements with the use of Fourier Transform Infrared (FTIR) Spectroscopy clearly indicated that there are no significant differences in the intermolecular interactions in the systems composed of NAP and all examined saccharides, one can postulate that the mobility and ring flexibility of the matrix have, , the most important impact on the crystallization tendency of NAP upon cooling. Consequently, it seems that in some cases, more mobile/flexible matrices can be a much better choice to enhance the glass-forming ability of studied pharmaceutical.
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Affiliation(s)
- A Minecka
- Department of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Jagiellonska 4, 41-200 Sosnowiec, Poland.
| | - E Kamińska
- Department of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Jagiellonska 4, 41-200 Sosnowiec, Poland.
| | - M Tarnacka
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - K Jurkiewicz
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - A Talik
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - K Wolnica
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - M Dulski
- Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Institute of Material Sciences, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - A Kasprzycka
- Department of Chemistry, Silesian Technical University of Technology, Krzywoustego 4, 44-100 Gliwice, Poland; Biotechnology Centre, Silesian Technical University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - P Spychalska
- Biotechnology Centre, Silesian Technical University of Technology, Krzywoustego 8, 44-100 Gliwice, Poland
| | - G Garbacz
- Physiolution GmbH, Walther-Rathenau-Str. 49a, 17489 Greifswald, Germany
| | - K Kamiński
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - M Paluch
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
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19
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Lu W, Rades T, Rantanen J, Chan HK, Yang M. Amino acids as stabilizers for spray-dried simvastatin powder for inhalation. Int J Pharm 2019; 572:118724. [PMID: 31678523 DOI: 10.1016/j.ijpharm.2019.118724] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 09/15/2019] [Accepted: 09/20/2019] [Indexed: 01/15/2023]
Abstract
BACKGROUND The use of amino acids as excipients is a promising approach to improve the physical stability and powder dispersibility of spray-dried powders for inhalation. OBJECTIVES The aim of this study was to investigate the stabilizing effect of different amino acids on spray-dried amorphous powders for inhalation using simvastatin (SV) as a model compound. METHODS Two hydrophobic amino acids (leucine, LEU and tryptophan, TRP), and one hydrophilic amino acid (lysine, LYS) were spray dried from 1% (w/v) solutions with SV at a molar ratio of 1:1 into dry powders for inhalation. Scanning electron microscopy (SEM), X-ray powder diffraction (XRPD), differential scanning calorimetry (DSC) and attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) were used to characterize the morphology, solid form and potential intermolecular interactions of the spray-dried powders. X-ray photoelectron spectroscopy (XPS) was used to analyse the chemical composition of the surface of the particles. The physical stability of the dry powders was examined upon storage in controlled conditions. A Next generation impactor (NGI) was applied to assess the in vitro aerosol performance of the powders. RESULTS XRPD and DSC results confirmed that the spray-dried SV-LEU was composed of crystalline LEU and amorphous SV, the spray-dried SV-LYS was co-amorphous, and the spray-dried SV-TRP was an amorphous system with two phases. XPS analyses revealed that the surface of the spray-dried SV-LEU particles were LEU rich, indicating surface-enrichment of LEU in these particles. In contrast, an almost even distribution of TRP and SV at the surface of spray-dried SV-TRP was observed. FTIR results indicated no intermolecular interaction between SV and the amino acids used in the present study. The three spray-dried samples were physically stable after eight months storage in a desiccator (12% RH, ca. 22 °C). Nevertheless, spray-dried SV-LEU exhibited the best storage stability as compared to the other two spray-dried samples when the samples were stored at 60% RH, 25 °C. Both, the spray-dried SV-LEU and SV-TRP exhibited higher fine particle fractions than the spray-dried SV-LYS. CONCLUSION Both the spray-dried SV-LEU and SV-TRP exhibited better aerosol performance and storage stability compared to the spray-dried SV-LYS. Compared to TRP, LEU exhibited better protection of spray-dried amorphous SV from re-crystallization, which could be attributed to the formation of a LEU crystalline shell covering SV upon the spray drying process.
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Affiliation(s)
- Wangding Lu
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Thomas Rades
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Jukka Rantanen
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark
| | - Hak-Kim Chan
- Sydney Pharmacy School, Faculty of Medicine and Health, University of Sydney, Science Road A15, NSW 2006 Sydney, Australia
| | - Mingshi Yang
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, DK-2100 Copenhagen, Denmark; Wuya College of Innovation, Shenyang Pharmaceutical University, Wenhua Road 103, 110016 Shenyang, China.
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20
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Molina C, Kaialy W, Chen Q, Commandeur D, Nokhodchi A. Agglomerated novel spray-dried lactose-leucine tailored as a carrier to enhance the aerosolization performance of salbutamol sulfate from DPI formulations. Drug Deliv Transl Res 2019; 8:1769-1780. [PMID: 29260462 PMCID: PMC6280810 DOI: 10.1007/s13346-017-0462-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Spray-drying allows to modify the physicochemical/mechanical properties of particles along with their morphology. In the present study, L-leucine with varying concentrations (0.1, 0.5, 1, 5, and 10% w/v) were incorporated into lactose monohydrate solution for spray-drying to enhance the aerosolization performance of dry powder inhalers containing spray-dried lactose-leucine and salbutamol sulfate. The prepared spray-dried lactose-leucine carriers were analyzed using laser diffraction (particle size), differential scanning calorimetry (thermal behavior), scanning electron microscopy (morphology), powder X-ray diffraction (crystallinity), Fourier transform infrared spectroscopy (interaction at molecular level), and in vitro aerosolization performance (deposition). The results showed that the efficacy of salbutamol sulfate’s aerosolization performance was, in part, due to the introduction of L-leucine in the carrier, prior to being spray-dried, accounting for an increase in the fine particle fraction (FPF) of salbutamol sulfate from spray-dried lactose-leucine (0.5% leucine) in comparison to all other carriers. It was shown that all of the spray-dried carriers were spherical in their morphology with some agglomerates and contained a mixture of amorphous, α-lactose, and β-lactose. It was also interesting to note that spray-dried lactose-leucine particles were agglomerated during the spray-drying process to make coarse particles (volume mean diameter of 79 to 87 μm) suitable as a carrier in DPI formulations.
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Affiliation(s)
- Carlos Molina
- Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, UK
| | - Waseem Kaialy
- School of Pharmacy, Faculty of Science and Engineering, University of Wolverhampton, Wolverhampton, UK
| | - Qiao Chen
- Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, UK
| | - Daniel Commandeur
- Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, UK
| | - Ali Nokhodchi
- Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, UK. .,Drug Applied Research Center and Faculty of Pharmacy, Tabriz Medical Sciences University, Tabriz, Iran.
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21
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Pacult J, Rams-Baron M, Chmiel K, Jurkiewicz K, Antosik A, Szafraniec J, Kurek M, Jachowicz R, Paluch M. How can we improve the physical stability of co-amorphous system containing flutamide and bicalutamide? The case of ternary amorphous solid dispersions. Eur J Pharm Sci 2019; 136:104947. [PMID: 31170526 DOI: 10.1016/j.ejps.2019.06.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2019] [Revised: 04/24/2019] [Accepted: 06/02/2019] [Indexed: 10/26/2022]
Abstract
The article describes the preparation and characterization of binary mixtures of two antiandrogens used in prostate cancer treatment, i.e. flutamide (FL) and bicalutamide (BIC), as well as their ternary mixtures with either poly(methyl methacrylate-co-ethyl acrylate) (MMA/EA) or polyvinylpyrrolidone (PVP). The samples were converted into amorphous form to improve their water solubility and dissolution rate. Broadband dielectric spectroscopy and differential scanning calorimetry revealed that FL-BIC (65%) (w/w) does not tend to crystallize from the supercooled liquid state. We made the assumption that the drug-to-drug weight ratio should be maintained as in the case of monotherapy so we decided to investigate the system containing FL and BIC in 15:1 (w/w) ratio with 30% additive of polymers as stabilizers. Our research has shown that only in the case of the FL-BIC-PVP mixture the crystallization has been completely inhibited, both in glassy and supercooled liquid state, which was confirmed by X-ray diffraction studies. In addition, we performed solubility and dissolution rate tests, which showed a significant improvement in solubility of ternary system as compared to its crystalline counterpart. Enhanced physical stability and water solubility of the amorphous ternary system makes it promising for further studies.
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Affiliation(s)
- Justyna Pacult
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Marzena Rams-Baron
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland.
| | - Krzysztof Chmiel
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Karolina Jurkiewicz
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Agata Antosik
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Joanna Szafraniec
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Mateusz Kurek
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Renata Jachowicz
- Jagiellonian University Medical College, Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Marian Paluch
- Institute of Physics, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland; Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
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22
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Ishizuka Y, Ueda K, Okada H, Takeda J, Karashima M, Yazawa K, Higashi K, Kawakami K, Ikeda Y, Moribe K. Effect of Drug–Polymer Interactions through Hypromellose Acetate Succinate Substituents on the Physical Stability on Solid Dispersions Studied by Fourier-Transform Infrared and Solid-State Nuclear Magnetic Resonance. Mol Pharm 2019; 16:2785-2794. [DOI: 10.1021/acs.molpharmaceut.9b00301] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yuya Ishizuka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Keisuke Ueda
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Hitomi Okada
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Junpei Takeda
- Analytical Development, Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 2-26-1, Muraoka-Higashi, Fujisawa 251-8555, Kanagawa, Japan
| | - Masatoshi Karashima
- Analytical Development, Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 2-26-1, Muraoka-Higashi, Fujisawa 251-8555, Kanagawa, Japan
| | - Koji Yazawa
- JEOL Resonance Incorpation, 3-1-2 Musashino, Akishima 196-8558, Tokyo, Japan
| | - Kenjirou Higashi
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
| | - Kohsaku Kawakami
- International Center for Materials Nanoarchitectonics, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Ibaraki, Japan
| | - Yukihiro Ikeda
- Analytical Development, Pharmaceutical Sciences, Takeda Pharmaceutical Company Limited, 2-26-1, Muraoka-Higashi, Fujisawa 251-8555, Kanagawa, Japan
| | - Kunikazu Moribe
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan
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23
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Rodríguez-Tinoco C, Ngai KL, Rams-Baron M, Rodríguez-Viejo J, Paluch M. Distinguishing different classes of secondary relaxations from vapour deposited ultrastable glasses. Phys Chem Chem Phys 2018; 20:21925-21933. [PMID: 29862402 DOI: 10.1039/c8cp02341g] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Secondary relaxations persistent in the glassy state after structural arrest are especially relevant for the properties of the glass. A major thrust in research in dynamics of glass-forming liquids is to identify what secondary relaxations exhibit a connection to the structural relaxation and are hence more relevant. Via the Coupling Model, secondary relaxations having such connection have been identified by properties similar to the primitive relaxation of the Coupling Model and are called the Johari-Goldstein (JG) β-relaxations. They involve the motion of the entire molecule and act as the precursor of the structural α-relaxation. The change in dynamics of the secondary relaxation by aging an ordinary glass is one way to understand the connection between the two relaxations, but the results are often equivocal. Ultrastable glasses, formed by physical vapour deposition, exhibit density and enthalpy levels comparable to ordinary glasses aged for thousands of years, as well as some particular molecular arrangement. Thus, ultrastable glasses enable the monitoring of the evolution of secondary processes in case aging does not provide any definitive information. Here, we study the secondary relaxation of several ultrastable glasses to identify different types of secondary relaxations from their different relationship with the structural relaxation. We show the existence of two clearly differentiated groups of relaxations: those becoming slower in the ultrastable state and those becoming faster, with respect to the ordinary unaged glass. We propose ultrastability as a way to distinguish between secondary processes arising from the particular microstructure of the system and those connected in properties to and acting as the precursor of the structural relaxation in the sense of the Coupling Model.
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24
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Safna Hussan KP, Thayyil MS, Deshpande SK, Jinitha TV, Manoj K, Ngai KL. Molecular dynamics, physical and thermal stability of neat amorphous amlodipine besylate and in binary mixture. Eur J Pharm Sci 2018; 119:268-278. [PMID: 29702233 DOI: 10.1016/j.ejps.2018.04.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2018] [Revised: 04/18/2018] [Accepted: 04/20/2018] [Indexed: 12/14/2022]
Abstract
In this paper, a stable amorphous solid dispersion of an antihypertensive drug, amlodipine besylate (AMB) was prepared by entrapping it in a polymer matrix, polyvinyl pyrrollidone, in different weight ratios (AMB/PVP 05:95, 10:90, 20:80, 30:70). The glass forming ability of all binary dispersions were studied by means of differential scanning calorimetry and found good correlation between experimental Tg and Fox Flory's prediction. By considering the daily dosage limit of 5 mg, a weight ratio of 05:95 was further considered for the study. The structures of neat and binary of AMB were characterized by density functional theory, Fourier transform infrared spectroscopy, Fourier transform Raman spectroscopy and UV-visible spectroscopy. Further, detailed molecular dynamics of both pure and binary were investigated using broadband dielectric spectroscopy to judge the physical stability of the amorphous dispersions. Translation-rotation coupling of AMB possibly explains the dual conductivity and dipolar nature of the secondary relaxation in neat AMB. Thus, the binary dispersion of AMB with commercially acceptable weight ratio with strong glass forming behaviour and better shelf life was prepared and characterized for practical applications.
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Affiliation(s)
- K P Safna Hussan
- Department of Physics, University of Calicut, Malappuram, 673635, Kerala, India.
| | | | - S K Deshpande
- UGC-DAE Consortium for Scientific Research, Mumbai Centre, BARC, Mumbai, 40085, India
| | - T V Jinitha
- Department of Chemistry, University of Calicut, Malappuram, 673635, Kerala, India
| | - K Manoj
- College of Pharmaceutical Sciences, Govt. Medical College, Kozhikode, 673008, Kerala, India
| | - K L Ngai
- CNR-IPCF, Largo Bruno Pontecorvo 3, I-56127 Pisa, Italy
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25
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Schammé B, Couvrat N, Tognetti V, Delbreilh L, Dupray V, Dargent É, Coquerel G. Investigation of Drug-Excipient Interactions in Biclotymol Amorphous Solid Dispersions. Mol Pharm 2018; 15:1112-1125. [PMID: 29328661 DOI: 10.1021/acs.molpharmaceut.7b00993] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
The effect of low molecular weight excipients on drug-excipient interactions, molecular mobility, and propensity to recrystallization of an amorphous active pharmaceutical ingredient is investigated. Two structurally related excipients (α-pentaacetylglucose and β-pentaacetylglucose), five different drug:excipient ratios (1:5, 1:2, 1:1, 2:1, and 5:1, w/w), and three different solid state characterization tools (differential scanning calorimetry, X-ray powder diffraction, and dielectric relaxation spectroscopy) were selected for the present research. Our investigation has shown that the excipient concentration and its molecular structure reveal quasi-identical molecular dynamic behavior of solid dispersions above and below the glass transition temperature. Across to complementary quantum mechanical simulations, we point out a clear indication of a strong interaction between biclotymol and the acetylated saccharides. Moreover, the thermodynamic study on these amorphous solid dispersions highlighted a stabilizing effect of α-pentaacetylglucose regardless of its quantity while an excessive concentration of β-pentaacetylglucose revealed a poor crystallization inhibition. Finally, through long-term stability studies, we also showed the limiting excipient concentration needed to stabilize our amorphous API. Herewith, the developed procedure in this paper appears to be a promising tool for solid-state characterization of complex pharmaceutical formulations.
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Affiliation(s)
- Benjamin Schammé
- Sciences et Méthodes Séparatives, UNIROUEN , Normandie Université , 76000 Rouen , France.,Groupe de Physique des Matériaux, CNRS, INSA Rouen, UNIROUEN , Normandie Université , 76000 Rouen , France
| | - Nicolas Couvrat
- Sciences et Méthodes Séparatives, UNIROUEN , Normandie Université , 76000 Rouen , France
| | - Vincent Tognetti
- COBRA UMR 6014, CNRS, INSA Rouen, UNIROUEN , Normandie Université , 76821 Mont-Saint-Aignan , France
| | - Laurent Delbreilh
- Groupe de Physique des Matériaux, CNRS, INSA Rouen, UNIROUEN , Normandie Université , 76000 Rouen , France
| | - Valérie Dupray
- Sciences et Méthodes Séparatives, UNIROUEN , Normandie Université , 76000 Rouen , France
| | - Éric Dargent
- Groupe de Physique des Matériaux, CNRS, INSA Rouen, UNIROUEN , Normandie Université , 76000 Rouen , France
| | - Gérard Coquerel
- Sciences et Méthodes Séparatives, UNIROUEN , Normandie Université , 76000 Rouen , France
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26
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Grzybowska K, Chmiel K, Knapik-Kowalczuk J, Grzybowski A, Jurkiewicz K, Paluch M. Molecular Factors Governing the Liquid and Glassy States Recrystallization of Celecoxib in Binary Mixtures with Excipients of Different Molecular Weights. Mol Pharm 2017; 14:1154-1168. [DOI: 10.1021/acs.molpharmaceut.6b01056] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K. Grzybowska
- Institute
of Physics, University of Silesia in Katowice, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K. Chmiel
- Institute
of Physics, University of Silesia in Katowice, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - J. Knapik-Kowalczuk
- Institute
of Physics, University of Silesia in Katowice, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - A. Grzybowski
- Institute
of Physics, University of Silesia in Katowice, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K. Jurkiewicz
- Institute
of Physics, University of Silesia in Katowice, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - M. Paluch
- Institute
of Physics, University of Silesia in Katowice, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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27
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Szczurek J, Rams-Baron M, Knapik-Kowalczuk J, Antosik A, Szafraniec J, Jamróz W, Dulski M, Jachowicz R, Paluch M. Molecular Dynamics, Recrystallization Behavior, and Water Solubility of the Amorphous Anticancer Agent Bicalutamide and Its Polyvinylpyrrolidone Mixtures. Mol Pharm 2017; 14:1071-1081. [PMID: 28231007 DOI: 10.1021/acs.molpharmaceut.6b01007] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this paper, we investigated the molecular mobility and physical stability of amorphous bicalutamide, a poorly water-soluble drug widely used in prostate cancer treatment. Our broadband dielectric spectroscopy measurements and differential scanning calorimetry studies revealed that amorphous BIC is a moderately fragile material with a strong tendency to recrystallize from the amorphous state. However, mixing the drug with polymer polyvinylpyrrolidone results in a substantial improvement of physical stability attributed to the antiplasticizing effect governed by the polymer additive. Furthermore, IR study demonstrated the existence of specific interactions between the drug and excipient. We found out that preparation of bicalutamide-polyvinylpyrrolidone mixture in a 2-1 weight ratio completely hinder material recrystallization. Moreover, we determined the time-scale of structural relaxation in the glassy state for investigated materials. Because molecular mobility is considered an important factor governing crystallization behavior, such information was used to approximate the long-term physical stability of an amorphous drug and drug-polymer systems upon their storage at room temperature. Moreover, we found that such systems have distinctly higher water solubility and dissolution rate in comparison to the pure amorphous form, indicating the genuine formulation potential of the proposed approach.
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Affiliation(s)
- Justyna Szczurek
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research , 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Marzena Rams-Baron
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research , 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Justyna Knapik-Kowalczuk
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research , 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Agata Antosik
- Jagiellonian University , Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Joanna Szafraniec
- Jagiellonian University , Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Witold Jamróz
- Jagiellonian University , Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Mateusz Dulski
- Silesian Center for Education and Interdisciplinary Research , 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland.,Institute of Materials Science, University of Silesia , 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - Renata Jachowicz
- Jagiellonian University , Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Medyczna 9, 30-688 Kraków, Poland
| | - Marian Paluch
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research , 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
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28
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Glass-Forming Tendency of Molecular Liquids and the Strength of the Intermolecular Attractions. Sci Rep 2016; 6:36934. [PMID: 27883011 PMCID: PMC5121653 DOI: 10.1038/srep36934] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2016] [Accepted: 10/24/2016] [Indexed: 12/24/2022] Open
Abstract
When we cool down a liquid below the melting temperature, it can either crystallize or become supercooled, and then form a disordered solid called glass. Understanding what makes a liquid to crystallize readily in one case and form a stable glass in another is a fundamental problem in science and technology. Here we show that the crystallization/glass-forming tendencies of the molecular liquids might be correlated with the strength of the intermolecular attractions, as determined from the combined experimental and computer simulation studies. We use van der Waals bonded propylene carbonate and its less polar structural analog 3-methyl-cyclopentanone to show that the enhancement of the dipole-dipole forces brings about the better glass-forming ability of the sample when cooling from the melt. Our finding was rationalized by the mismatch between the optimal temperature range for the nucleation and crystal growth, as obtained for a modeled Lennard-Jones system with explicitly enhanced or weakened attractive part of the intermolecular 6–12 potential.
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29
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Schammé B, Mignot M, Couvrat N, Tognetti V, Joubert L, Dupray V, Delbreilh L, Dargent E, Coquerel G. Molecular Relaxations in Supercooled Liquid and Glassy States of Amorphous Quinidine: Dielectric Spectroscopy and Density Functional Theory Approaches. J Phys Chem B 2016; 120:7579-92. [PMID: 27391029 DOI: 10.1021/acs.jpcb.6b04242] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
In this article, we conduct a comprehensive molecular relaxation study of amorphous Quinidine above and below the glass-transition temperature (Tg) through broadband dielectric relaxation spectroscopy (BDS) experiments and theoretical density functional theory (DFT) calculations, as one major issue with the amorphous state of pharmaceuticals is life expectancy. These techniques enabled us to determine what kind of molecular motions are responsible, or not, for the devitrification of Quinidine. Parameters describing the complex molecular dynamics of amorphous Quinidine, such as Tg, the width of the α relaxation (βKWW), the temperature dependence of α-relaxation times (τα), the fragility index (m), and the apparent activation energy of secondary γ relaxation (Ea-γ), were characterized. Above Tg (> 60 °C), a medium degree of nonexponentiality (βKWW = 0.5) was evidenced. An intermediate value of the fragility index (m = 86) enabled us to consider Quinidine as a glass former of medium fragility. Below Tg (< 60 °C), one well-defined secondary γ relaxation, with an apparent activation energy of Ea-γ = 53.8 kJ/mol, was reported. From theoretical DFT calculations, we identified the most reactive part of Quinidine moieties through exploration of the potential energy surface. We evidenced that the clearly visible γ process has an intramolecular origin coming from the rotation of the CH(OH)C9H14N end group. An excess wing observed in amorphous Quinidine was found to be an unresolved Johari-Goldstein relaxation. These studies were supplemented by sub-Tg experimental evaluations of the life expectancy of amorphous Quinidine by X-ray powder diffraction and differential scanning calorimetry. We show that the difference between Tg and the onset temperature for crystallization, Tc, which is 30 K, is sufficiently large to avoid recrystallization of amorphous Quinidine during 16 months of storage under ambient conditions.
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Affiliation(s)
- Benjamin Schammé
- Normandie Univ, Laboratoire SMS - EA3233, Univ Rouen , F-76821 Mont Saint Aignan, France.,AMME-LECAP EA 4528 International Lab, Avenue de l'Université, BP12, Normandie Univ, Université de Rouen Normandie , 76801 St Etienne du Rouvray, France
| | - Mélanie Mignot
- Normandie Univ, Laboratoire SMS - EA3233, Univ Rouen , F-76821 Mont Saint Aignan, France
| | - Nicolas Couvrat
- Normandie Univ, Laboratoire SMS - EA3233, Univ Rouen , F-76821 Mont Saint Aignan, France
| | - Vincent Tognetti
- COBRA UMR 6014 and FR 3038, Normandie Univ, Université de Rouen, INSA Rouen, CNRS , F-76821 Mont Saint Aignan, Cedex, France
| | - Laurent Joubert
- COBRA UMR 6014 and FR 3038, Normandie Univ, Université de Rouen, INSA Rouen, CNRS , F-76821 Mont Saint Aignan, Cedex, France
| | - Valérie Dupray
- Normandie Univ, Laboratoire SMS - EA3233, Univ Rouen , F-76821 Mont Saint Aignan, France
| | - Laurent Delbreilh
- AMME-LECAP EA 4528 International Lab, Avenue de l'Université, BP12, Normandie Univ, Université de Rouen Normandie , 76801 St Etienne du Rouvray, France
| | - Eric Dargent
- AMME-LECAP EA 4528 International Lab, Avenue de l'Université, BP12, Normandie Univ, Université de Rouen Normandie , 76801 St Etienne du Rouvray, France
| | - Gérard Coquerel
- Normandie Univ, Laboratoire SMS - EA3233, Univ Rouen , F-76821 Mont Saint Aignan, France
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30
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Knapik J, Wojnarowska Z, Grzybowska K, Tajber L, Mesallati H, Paluch KJ, Paluch M. Molecular Dynamics and Physical Stability of Amorphous Nimesulide Drug and Its Binary Drug-Polymer Systems. Mol Pharm 2016; 13:1937-46. [PMID: 27149568 DOI: 10.1021/acs.molpharmaceut.6b00115] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
In this article we study the effectiveness of three well-known polymers: inulin, Soluplus, and PVP in stabilizing the amorphous form of nimesulide (NMS) drug. The recrystallization tendency of pure drug as well as measured drug-polymer systems were examined at isothermal conditions by broadband dielectric spectroscopy (BDS) and at nonisothermal conditions by differential scanning calorimetry (DSC). Our investigation has shown that the crystallization half-life time of pure NMS at 328 K is equal to 33 min. We found that this time can be prolonged to 40 years after adding 20% w/w PVP to NMS. This polymer proved to be the best NMS stabilizer, while the worst stabilization effect was exhibited by inulin. Additionally, our DSC, BDS, and FTIR studies indicate that for suppression of NMS recrystallization in the NMS-PVP system, the two mechanisms are responsible: the polymeric steric hindrances and the antiplastization effect exerted by the excipient.
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Affiliation(s)
- J Knapik
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Z Wojnarowska
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K Grzybowska
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - L Tajber
- School of Pharmacy and Pharmaceutical Sciences , Trinity College Dublin , College Green, Dublin 2, Ireland
| | - H Mesallati
- School of Pharmacy and Pharmaceutical Sciences , Trinity College Dublin , College Green, Dublin 2, Ireland
| | - K J Paluch
- Centre for Pharmaceutical Engineering Science, Bradford School of Pharmacy, Faculty of Life Sciences, University of Bradford , Richmond Road, BD71DP Bradford, W. Yorks., U.K
| | - M Paluch
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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31
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Grzybowska K, Capaccioli S, Paluch M. Recent developments in the experimental investigations of relaxations in pharmaceuticals by dielectric techniques at ambient and elevated pressure. Adv Drug Deliv Rev 2016; 100:158-82. [PMID: 26705851 DOI: 10.1016/j.addr.2015.12.008] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/05/2015] [Accepted: 12/09/2015] [Indexed: 10/22/2022]
Abstract
In recent years, there is a growing interest in improving the physicochemical stability of amorphous pharmaceutical solids due to their very promising applications to manufacture medicines characterized by a better water solubility, and consequently by a higher dissolution rate than those of their crystalline counterparts. In this review article, we show that the molecular mobility investigated both in the supercooled liquid and glassy states is the crucial factor required to understand molecular mechanisms that govern the physical stability of amorphous drugs. We demonstrate that pharmaceuticals can be thoroughly examined by means of the broadband dielectric spectroscopy, which is a very useful experimental technique to explore different relaxation processes and crystallization kinetics as well. Such studies conducted in the wide temperature and pressure ranges provide data needed in searching correlations between properties of molecular dynamics and crystallization process, which are aimed at developing effective and efficient methods for stabilizing amorphous drugs.
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32
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Mehta M, Ragoonanan V, McKenna GB, Suryanarayanan R. Correlation between Molecular Mobility and Physical Stability in Pharmaceutical Glasses. Mol Pharm 2016; 13:1267-77. [DOI: 10.1021/acs.molpharmaceut.5b00853] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mehak Mehta
- Department
of Pharmaceutics, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Vishard Ragoonanan
- Department
of Pharmaceutics, University of Minnesota, Minneapolis, Minnesota 55455, United States
| | - Gregory B. McKenna
- Department
of Chemical Engineering, Texas Tech University, Lubbock, Texas 79409, United States
| | - Raj Suryanarayanan
- Department
of Pharmaceutics, University of Minnesota, Minneapolis, Minnesota 55455, United States
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33
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Characterization of Amorphous and Co-Amorphous Simvastatin Formulations Prepared by Spray Drying. Molecules 2015; 20:21532-48. [PMID: 26633346 PMCID: PMC6332242 DOI: 10.3390/molecules201219784] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2015] [Revised: 11/24/2015] [Accepted: 11/25/2015] [Indexed: 11/16/2022] Open
Abstract
In this study, spray drying from aqueous solutions, using the surface-active agent sodium lauryl sulfate (SLS) as a solubilizer, was explored as a production method for co-amorphous simvastatin-lysine (SVS-LYS) at 1:1 molar mixtures, which previously have been observed to form a co-amorphous mixture upon ball milling. In addition, a spray-dried formulation of SVS without LYS was prepared. Energy-dispersive X-ray spectroscopy (EDS) revealed that SLS coated the SVS and SVS-LYS particles upon spray drying. X-ray powder diffraction (XRPD) and differential scanning calorimetry (DSC) showed that in the spray-dried formulations the remaining crystallinity originated from SLS only. The best dissolution properties and a "spring and parachute" effect were found for SVS spray-dried from a 5% SLS solution without LYS. Despite the presence of at least partially crystalline SLS in the mixtures, all the studied formulations were able to significantly extend the stability of amorphous SVS compared to previous co-amorphous formulations of SVS. The best stability (at least 12 months in dry conditions) was observed when SLS was spray-dried with SVS (and LYS). In conclusion, spray drying of SVS and LYS from aqueous surfactant solutions was able to produce formulations with improved physical stability for amorphous SVS.
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34
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Changes in dynamics of the glass-forming pharmaceutical nifedipine in binary mixtures with octaacetylmaltose. Eur J Pharm Biopharm 2015; 97:185-91. [DOI: 10.1016/j.ejpb.2015.09.010] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2015] [Revised: 09/17/2015] [Accepted: 09/21/2015] [Indexed: 11/20/2022]
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35
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Rams-Baron M, Wojnarowska Z, Grzybowska K, Dulski M, Knapik J, Jurkiewicz K, Smolka W, Sawicki W, Ratuszna A, Paluch M. Toward a Better Understanding of the Physical Stability of Amorphous Anti-Inflammatory Agents: The Roles of Molecular Mobility and Molecular Interaction Patterns. Mol Pharm 2015; 12:3628-38. [PMID: 26323061 DOI: 10.1021/acs.molpharmaceut.5b00351] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aim of this article is to examine the crystallization tendencies of three chemically related amorphous anti-inflammatory agents, etoricoxib, celecoxib, and rofecoxib. Since the molecular mobility is considered as one of the factors affecting the crystallization behavior of a given material, broadband dielectric spectroscopy was used to gain insight into the molecular dynamics of the selected active pharmaceutical ingredients. Interestingly, our experiments did not reveal any significant differences in their relaxation behavior either in the supercooled liquid or in the glassy state. Hence, as a possible explanation for the enhanced physical stability of etoricoxib, its ability to undergo a tautomerization reaction was recognized. The occurrence of intramolecular proton transfer in the disordered etoricoxib was proven experimentally by time-dependent dielectric and infrared (IR) measurements. Additionally, IR spectroscopy combined with density functional theory calculations pointed out that in the etoricoxib drug, being in fact a binary mixture of tautomers, the individual isomers may interact with each other through a hydrogen bonding network. A possible explanation of this issue was achieved by performing dielectric experiments at elevated pressure. Since compression results in etoricoxib recrystallization, the possible influence of pressure on the observed stabilization effect is also carefully discussed.
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Affiliation(s)
- M Rams-Baron
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Z Wojnarowska
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K Grzybowska
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - M Dulski
- Institute of Material Sciences, University of Silesia , 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - J Knapik
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K Jurkiewicz
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - W Smolka
- Department of Otolaryngology, Silesian Medical University , Francuska 20/27, 40-027 Katowice, Poland
| | - W Sawicki
- Department of Physical Chemistry, Medical University of Gdansk , Hallera 107, 84-416 Gdansk, Poland
| | - A Ratuszna
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - M Paluch
- Institute of Physics, University of Silesia , Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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36
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Knapik J, Wojnarowska Z, Grzybowska K, Jurkiewicz K, Tajber L, Paluch M. Molecular Dynamics and Physical Stability of Coamorphous Ezetimib and Indapamide Mixtures. Mol Pharm 2015; 12:3610-9. [PMID: 26301858 DOI: 10.1021/acs.molpharmaceut.5b00334] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Low physical stability is the main reason limiting the widespread use of amorphous pharmaceuticals. One approach to overcome this problem is to mix these drugs with various excipients. In this study coamorphous drug-drug compositions of different molar ratios of ezetimib and indapamid (i.e., EZB 10:1 IDP, EZB 5:1 IDP, EZB 2:1 IDP, EZB 1:1 IDP and EZB 1:2 IDP) were prepared and investigated using differential scanning calorimetry (DSC), broadband dielectric spectroscopy (BDS), and X-ray diffraction (XRD). Our studies have shown that the easily recrystallizing ezetimib drug can be significantly stabilized in its amorphous form by using even a small amount of indapamid (8.8 wt %). DSC experiments indicate that the glass transition temperature (Tg) of the tested mixtures changes with the drug concentration in accordance with the Gordon-Taylor equation. We also investigated the effect of indapamid on the molecular dynamics of the ezetimib. As a result it was found that, with increasing indapamid content, the molecular mobility of the binary drug-drug system is slowed down. Finally, using the XRD technique we examined the long-term physical stability of the investigated binary systems stored at room temperature. These measurements prove that low-molecular-weight compounds are able to significantly improve the physical stability of amorphous APIs.
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Affiliation(s)
- J Knapik
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Z Wojnarowska
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K Grzybowska
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K Jurkiewicz
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - L Tajber
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin , College Green, Dublin 2, Ireland
| | - M Paluch
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,SMCEBI , ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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37
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Kaminska E, Tarnacka M, Wlodarczyk P, Jurkiewicz K, Kolodziejczyk K, Dulski M, Haznar-Garbacz D, Hawelek L, Kaminski K, Wlodarczyk A, Paluch M. Studying the Impact of Modified Saccharides on the Molecular Dynamics and Crystallization Tendencies of Model API Nifedipine. Mol Pharm 2015; 12:3007-19. [DOI: 10.1021/acs.molpharmaceut.5b00271] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- E. Kaminska
- Department
of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - M. Tarnacka
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center of Education and Interdisciplinary Research, University of Silesia, ul. 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - P. Wlodarczyk
- Institute of Non-Ferrous Metals, ul. Sowinskiego 5, 44-100 Gliwice, Poland
| | - K. Jurkiewicz
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center of Education and Interdisciplinary Research, University of Silesia, ul. 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - K. Kolodziejczyk
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center of Education and Interdisciplinary Research, University of Silesia, ul. 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - M. Dulski
- Institute
of Material Science, University of Silesia, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland
| | - D. Haznar-Garbacz
- Institute
of Pharmacy, Center of Drug Absorption and Targeting, Felix-Hausdorff-Strasse
3a, 17489 Greifswald, Germany
| | - L. Hawelek
- Institute of Non-Ferrous Metals, ul. Sowinskiego 5, 44-100 Gliwice, Poland
| | - K. Kaminski
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center of Education and Interdisciplinary Research, University of Silesia, ul. 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - A. Wlodarczyk
- Department
of Animal Histology and Embryology, University of Silesia, ul. Bankowa
9, 40-007 Katowice, Poland
| | - M. Paluch
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center of Education and Interdisciplinary Research, University of Silesia, ul. 75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
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38
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Kaminska E, Tarnacka M, Kolodziejczyk K, Dulski M, Zakowiecki D, Hawelek L, Adrjanowicz K, Zych M, Garbacz G, Kaminski K. Impact of low molecular weight excipient octaacetylmaltose on the liquid crystalline ordering and molecular dynamics in the supercooled liquid and glassy state of itraconazole. Eur J Pharm Biopharm 2014; 88:1094-104. [DOI: 10.1016/j.ejpb.2014.10.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 10/09/2014] [Accepted: 10/12/2014] [Indexed: 10/24/2022]
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39
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Knapik J, Wojnarowska Z, Grzybowska K, Hawelek L, Sawicki W, Wlodarski K, Markowski J, Paluch M. Physical Stability of the Amorphous Anticholesterol Agent (Ezetimibe): The Role of Molecular Mobility. Mol Pharm 2014; 11:4280-90. [DOI: 10.1021/mp500498e] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- J. Knapik
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Z. Wojnarowska
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - K. Grzybowska
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - L. Hawelek
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
- Institute of Non Ferrous Metals, ul. Sowinskiego 5, 44-100 Gliwice, Poland
| | - W. Sawicki
- Department
of Physical Chemistry, Medical University of Gdansk, 84-416 Gdansk, Poland
| | - K. Wlodarski
- Department
of Physical Chemistry, Medical University of Gdansk, 84-416 Gdansk, Poland
| | - J. Markowski
- ENT
Department, Silesian Medical University, ul. Francuska 20, Katowice, Poland
| | - M. Paluch
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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40
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Hensel-Bielowka S, Wojnarowska Z, Knapik J, Paluch M. New insight into relaxation dynamics of an epoxy/hydroxy functionalized polybutadiene from dielectric and mechanical spectroscopy studies. Colloid Polym Sci 2014; 292:1853-1862. [PMID: 25100898 PMCID: PMC4115185 DOI: 10.1007/s00396-014-3254-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Revised: 05/07/2014] [Accepted: 05/08/2014] [Indexed: 11/22/2022]
Abstract
Dielectric and mechanical spectroscopy methods have been employed to describe the temperature dependencies of the segmental and macromolecular relaxation rates in epoxy/hydroxy functionalized polybutadiene. Dielectric studies on the dynamics of segments of the polymer as well as the mobility of small ions trapped in the system have been carried out both as a function of temperature and pressure under isobaric and isothermal conditions, respectively.
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Affiliation(s)
- S Hensel-Bielowka
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006 Katowice, Poland
| | - Z Wojnarowska
- Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
| | - J Knapik
- Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
| | - M Paluch
- Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland
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41
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Kaminska E, Adrjanowicz K, Tarnacka M, Kolodziejczyk K, Dulski M, Mapesa EU, Zakowiecki D, Hawelek L, Kaczmarczyk-Sedlak I, Kaminski K. Impact of Inter- and Intramolecular Interactions on the Physical Stability of Indomethacin Dispersed in Acetylated Saccharides. Mol Pharm 2014; 11:2935-47. [DOI: 10.1021/mp500286b] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- E. Kaminska
- School
of Pharmacy with the Division of Laboratory Medicine in Sosnowiec,
Department of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - K. Adrjanowicz
- NanoBioMedical
Centre, Adam Mickiewicz University, ul. Umultowska 85, 61-614 Poznan, Poland
| | - M. Tarnacka
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center of Education and Interdisciplinary Research, University of Silesia, ul.
75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - K. Kolodziejczyk
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center of Education and Interdisciplinary Research, University of Silesia, ul.
75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - M. Dulski
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center of Education and Interdisciplinary Research, University of Silesia, ul.
75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
| | - E. U. Mapesa
- Insitute
for Experimental Physics I, University of Leipzig, Linnestraße
5, 04103 Leipzig, Germany
| | - D. Zakowiecki
- Pharmaceutical Works Polpharma SA, ul.
Pelplinska 19, 83-200 Starogard Gdanski, Poland
| | - L. Hawelek
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center of Education and Interdisciplinary Research, University of Silesia, ul.
75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
- Institute of Non-Ferrous Metals, ul. Sowinskiego 5, 44-100 Gliwice, Poland
| | - I. Kaczmarczyk-Sedlak
- School
of Pharmacy with the Division of Laboratory Medicine in Sosnowiec,
Department of Pharmacognosy and Phytochemistry, Medical University of Silesia in Katowice, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - K. Kaminski
- Institute
of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Silesian
Center of Education and Interdisciplinary Research, University of Silesia, ul.
75 Pulku Piechoty 1A, 41-500 Chorzow, Poland
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42
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Kossack W, Kipnusu WK, Dulski M, Adrjanowicz K, Madejczyk O, Kaminska E, Mapesa EU, Tress M, Kaminski K, Kremer F. The kinetics of mutarotation in L-fucose as monitored by dielectric and infrared spectroscopy. J Chem Phys 2014; 140:215101. [PMID: 24908041 DOI: 10.1063/1.4880718] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Fourier Transform Infrared Spectroscopy and Broadband Dielectric Spectroscopy are combined to trace kinetics of mutarotation in L-fucose. After quenching molten samples down to temperatures between T = 313 K and 328 K, the concentrations of two anomeric species change according to a simple exponential time dependence, as seen by an increase in absorbance of specific IR-vibrations. In contrast, the dielectric spectra reveal a slowing down of the structural (α-) relaxation process according to a stretched exponential time dependence (stretching exponent of 1.5 ± 0.2). The rates of change in the IR absorption for α- and β-fucopyranose are (at T = 313 K) nearly one decade faster than that of the intermolecular interactions as measured by the shift of the α-relaxation. This reflects the fact that the α-relaxation monitors the equilibration at a mesoscopic length scale, resulting from fluctuations in the anomeric composition.
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Affiliation(s)
- Wilhelm Kossack
- Institute of Experimental Physics, University of Leipzig, Linnestr. 5, 04103 Leipzig, Germany
| | - Wycliffe Kiprop Kipnusu
- Institute of Experimental Physics, University of Leipzig, Linnestr. 5, 04103 Leipzig, Germany
| | - Mateusz Dulski
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland and Silesian Center of Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzów, Poland
| | | | - Olga Madejczyk
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland and Silesian Center of Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzów, Poland
| | - Ewa Kaminska
- Department of Pharmacognosy and Phytochemistry, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia in Katowice, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland
| | - Emmanuel Urandu Mapesa
- Institute of Experimental Physics, University of Leipzig, Linnestr. 5, 04103 Leipzig, Germany
| | - Martin Tress
- Institute of Experimental Physics, University of Leipzig, Linnestr. 5, 04103 Leipzig, Germany
| | - Kamil Kaminski
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland and Silesian Center of Education and Interdisciplinary Research, University of Silesia, 75 Pulku Piechoty 1A, 41-500 Chorzów, Poland
| | - Friedrich Kremer
- Institute of Experimental Physics, University of Leipzig, Linnestr. 5, 04103 Leipzig, Germany
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43
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Laitinen R, Löbmann K, Grohganz H, Strachan C, Rades T. Amino acids as co-amorphous excipients for simvastatin and glibenclamide: physical properties and stability. Mol Pharm 2014; 11:2381-9. [PMID: 24852326 DOI: 10.1021/mp500107s] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
Co-amorphous drug mixtures with low-molecular-weight excipients have recently been shown to be a promising approach for stabilization of amorphous drugs and thus to be an alternative to the traditional amorphous solid dispersion approach using polymers. However, the previous studies are limited to a few drugs and amino acids. To facilitate the rational selection of amino acids, the practical importance of the amino acid coming from the biological target site of the drug (and associated intermolecular interactions) needs to be established. In the present study, the formation of co-amorphous systems using cryomilling and combinations of two poorly water-soluble drugs (simvastatin and glibenclamide) with the amino acids aspartic acid, lysine, serine, and threonine was investigated. Solid-state characterization with X-ray powder diffraction, differential scanning calorimetry, and Fourier-transform infrared spectroscopy revealed that the 1:1 molar combinations simvastatin-lysine, glibenclamide-serine, and glibenclamide-threonine and the 1:1:1 molar combination glibenclamide-serine-threonine formed co-amorphous mixtures. These were homogeneous single-phase blends with weak intermolecular interactions in the mixtures. Interestingly, a favorable effect by the excipients on the tautomerism of amorphous glibenclamide in the co-amorphous blends was seen, as the formation of the thermodynamically less stable imidic acid tautomer of glibenclamide was suppressed compared to that of the pure amorphous drug. Furthermore, the co-amorphous mixtures provided a physical stability advantage over the amorphous drugs alone.
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Affiliation(s)
- Riikka Laitinen
- School of Pharmacy, University of Eastern Finland , Kuopio FI-70211, Finland
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44
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Kaminska E, Adrjanowicz K, Zakowiecki D, Milanowski B, Tarnacka M, Hawelek L, Dulski M, Pilch J, Smolka W, Kaczmarczyk-Sedlak I, Kaminski K. Enhancement of the physical stability of amorphous indomethacin by mixing it with octaacetylmaltose. inter and intra molecular studies. Pharm Res 2014; 31:2887-903. [PMID: 24831310 DOI: 10.1007/s11095-014-1385-4] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2014] [Accepted: 04/07/2014] [Indexed: 11/28/2022]
Abstract
PURPOSE To demonstrate a very effective and easy way of stabilization of amorphous indomethacin (IMC) by preparing binary mixtures with octaacetylmaltose (acMAL). In order to understand the origin of increased stability of amorphous system inter- and intramolecular interactions between IMC and acMAL were studied. METHODS The amorphous IMC, acMAL and binary mixtures (IMC-acMAL) with different weight ratios were analyzed by using Dielectric Spectroscopy (DS), Differential Scanning Calorimetry (DSC), Raman Spectroscopy, X-ray Diffraction (XRD), Infrared Spectroscopy (FTIR) and Quantitative Structure-Activity Relationship (QSAR). RESULTS Our studies have revealed that indomethacin mixed with acetylated saccharide forms homogeneous mixture. Interestingly, even a small amount of modified maltose prevents from recrystallization of amorphous indomethacin. FTIR measurements and QSAR calculations have shown that octaacetylmaltose significantly affects the concentration of indomethacin dimers. Moreover, with increasing the amount of acMAL in the amorphous solid dispersion molecular interactions between matrix and API become more dominant than IMC-IMC ones. Structural investigations with the use of X-ray diffraction technique have demonstrated that binary mixture of indomethacin with acMAL does not recrystallize upon storage at room temperature for more than 1.5 year. Finally, it was shown that acMAL can be used to improve solubility of IMC. CONCLUSIONS Acetylated derivative of maltose might be very effective agent to improve physical stability of amorphous indomethacin as well as to enhance its solubility. Intermolecular interactions between modified carbohydrate and IMC are likely to be responsible for increased stability effect in the glassy state.
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Affiliation(s)
- E Kaminska
- Medical University of Silesia in Katowice, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Department of Pharmacognosy and Phytochemistry, ul. Jagiellonska 4, 41-200, Sosnowiec, Poland,
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45
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Wojnarowska Z, Grzybowska K, Hawelek L, Dulski M, Wrzalik R, Gruszka I, Paluch M, Pienkowska K, Sawicki W, Bujak P, Paluch KJ, Tajber L, Markowski J. Molecular Dynamics, Physical Stability and Solubility Advantage from Amorphous Indapamide Drug. Mol Pharm 2013; 10:3612-27. [DOI: 10.1021/mp400116q] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Z. Wojnarowska
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - K. Grzybowska
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - L. Hawelek
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Institute of Non-Ferrous Metals, ul. Sowinskiego 5, 44-100 Gliwice, Poland
| | - M. Dulski
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - R. Wrzalik
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - I. Gruszka
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - M. Paluch
- Institute of Physics, University of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
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46
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Kolodziejczyk K, Paluch M, Grzybowska K, Grzybowski A, Wojnarowska Z, Hawelek L, Ziolo JD. Relaxation Dynamics and Crystallization Study of Sildenafil in the Liquid and Glassy States. Mol Pharm 2013; 10:2270-82. [DOI: 10.1021/mp300479r] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K. Kolodziejczyk
- Institute of Physics, University
of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - M. Paluch
- Institute of Physics, University
of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - K. Grzybowska
- Institute of Physics, University
of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - A. Grzybowski
- Institute of Physics, University
of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - Z. Wojnarowska
- Institute of Physics, University
of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
| | - L. Hawelek
- Institute of Physics, University
of Silesia, ul. Uniwersytecka 4, 40-007 Katowice, Poland
- Institute of Non Ferrous Metals,
ul. Sowinskiego 5, 44-100 Gliwice, Poland
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Kaminska E, Adrjanowicz K, Kaminski K, Wlodarczyk P, Hawelek L, Kolodziejczyk K, Tarnacka M, Zakowiecki D, Kaczmarczyk-Sedlak I, Pilch J, Paluch M. A new way of stabilization of furosemide upon cryogenic grinding by using acylated saccharides matrices. The role of hydrogen bonds in decomposition mechanism. Mol Pharm 2013; 10:1824-35. [PMID: 23510208 DOI: 10.1021/mp300606p] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Recently it was reported that upon mechanical milling of pure furosemide significant chemical degradation occurs (Adrjanowicz et al. Pharm. Res.2011, 28, 3220-3236). In this paper, we present a novel way of chemical stabilization amorphous furosemide against decomposing that occur during mechanical treatment by preparing binary mixtures with acylated saccharides. To get some insight into the mechanism of chemical degradation of furosemide induced by cryomilling, experimental investigations supported by density functional theory (DFT) computations were carried out. This included detailed studies on molecular dynamics and physical properties of cryoground samples. The main thrust of our paper is that we have shown that furosemide cryomilled with acylated saccharides forms chemically and physically stable homogeneous mixtures with only one glass transition temperature, Tg. Finally, solubility measurements have demonstrated that furosemide cryomilled with acylated saccharides (glucose, maltose and sucrose) is much more soluble with respect to the crystalline form of this active pharmaceutical ingredient (API).
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Affiliation(s)
- E Kaminska
- Department of Pharmacognosy and Phytochemistry, Medical University of Silesia, ul. Jagiellonska 4, 41-200 Sosnowiec, Poland.
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Leocmach M, Russo J, Tanaka H. Importance of many-body correlations in glass transition: An example from polydisperse hard spheres. J Chem Phys 2013; 138:12A536. [DOI: 10.1063/1.4769981] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Effect of amorphization method on telmisartan solubility and the tableting process. Eur J Pharm Biopharm 2013; 83:114-21. [DOI: 10.1016/j.ejpb.2012.09.019] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2012] [Revised: 09/17/2012] [Accepted: 09/20/2012] [Indexed: 11/23/2022]
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