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Giannachi C, Allen E, Egan G, Vucen S, Crean A. Colyophilized Sugar-Polymer Dispersions for Enhanced Processing and Storage Stability. Mol Pharm 2024. [PMID: 38758116 DOI: 10.1021/acs.molpharmaceut.4c00187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
Sucrose and trehalose pharmaceutical excipients are employed to stabilize protein therapeutics in a dried state. The mechanism of therapeutic protein stabilization is dependent on the sugars being present in an amorphous solid-state. Colyophilization of sugars with high glass transition polymers, polyvinylpyrrolidone (PVP), and poly(vinylpyrrolidone vinyl acetate) (PVPVA), enhances amorphous sugar stability. This study investigates the stability of colyophilized sugar-polymer systems in the frozen solution state, dried state postlyophilization, and upon exposure to elevated humidity. Binary systems of sucrose or trehalose with PVP or PVPVA were lyophilized with sugar/polymer ratios ranging from 2:8 to 8:2. Frozen sugar-PVPVA solutions exhibited a higher glass transition temperature of the maximally freeze-concentrated amorphous phase (Tg') compared to sugar-PVP solutions, despite the glass transition temperature (Tg) of PVPVA being lower than PVP. Tg values of all colyophilized systems were in a similar temperature range irrespective of polymer type. Greater hydrogen bonding between sugars and PVP and the lower hygroscopicity of PVPVA influenced polymer antiplasticization effects and the plasticization effects of residual water. Plasticization due to water sorption was investigated in a dynamic vapor sorption humidity ramping experiment. Lyophilized sucrose systems exhibited increased amorphous stability compared to trehalose upon exposure to the humidity. Recrystallization of trehalose was observed and stabilized by polymer addition. Lower concentrations of PVP inhibited trehalose recrystallization compared to PVPVA. These stabilizing effects were attributed to the increased hydrogen bonding between trehalose and PVP compared to trehalose and PVPVA. Overall, the study demonstrated how differences in polymer hygroscopicity and hydrogen bonding with sugars influence the stability of colyophilized amorphous dispersions. These insights into excipient solid-state stability are relevant to the development of stabilized biopharmaceutical solid-state formulations.
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Affiliation(s)
- Claudia Giannachi
- SSPC, the SFI Research Centre for Pharmaceuticals, School of Pharmacy, University College Cork, Cork T12 YT20, Ireland
- School of Pharmacy, University College Cork, Cork T12 YT20, Ireland
| | - Evin Allen
- School of Pharmacy, University College Cork, Cork T12 YT20, Ireland
| | - Gráinne Egan
- School of Pharmacy, University College Cork, Cork T12 YT20, Ireland
| | - Sonja Vucen
- SSPC, the SFI Research Centre for Pharmaceuticals, School of Pharmacy, University College Cork, Cork T12 YT20, Ireland
- School of Pharmacy, University College Cork, Cork T12 YT20, Ireland
| | - Abina Crean
- SSPC, the SFI Research Centre for Pharmaceuticals, School of Pharmacy, University College Cork, Cork T12 YT20, Ireland
- School of Pharmacy, University College Cork, Cork T12 YT20, Ireland
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2
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Rosiak N, Tykarska E, Cielecka-Piontek J. Enhanced Antioxidant and Neuroprotective Properties of Pterostilbene (Resveratrol Derivative) in Amorphous Solid Dispersions. Int J Mol Sci 2024; 25:2774. [PMID: 38474022 DOI: 10.3390/ijms25052774] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2024] [Revised: 02/23/2024] [Accepted: 02/25/2024] [Indexed: 03/14/2024] Open
Abstract
In this study, amorphous solid dispersions (ASDs) of pterostilbene (PTR) with polyvinylpyrrolidone polymers (PVP K30 and VA64) were prepared through milling, affirming the amorphous dispersion of PTR via X-ray powder diffraction (XRPD) and differential scanning calorimetry (DSC). Subsequent analysis of DSC thermograms, augmented using mathematical equations such as the Gordon-Taylor and Couchman-Karasz equations, facilitated the determination of predicted values for glass transition (Tg), PTR's miscibility with PVP, and the strength of PTR's interaction with the polymers. Fourier-transform infrared (FTIR) analysis validated interactions maintaining PTR's amorphous state and identified involved functional groups, namely, the 4'-OH and/or -CH groups of PTR and the C=O group of PVP. The study culminated in evaluating the impact of amorphization on water solubility, the release profile in pH 6.8, and in vitro permeability (PAMPA-GIT and BBB methods). In addition, it was determined how improving water solubility affects the increase in antioxidant (ABTS, DPPH, CUPRAC, and FRAP assays) and neuroprotective (inhibition of cholinesterases: AChE and BChE) properties. The apparent solubility of the pure PTR was ~4.0 µg·mL-1 and showed no activity in the considered assays. For obtained ASDs (PTR-PVP30/PTR-PVPVA64, respectively) improvements in apparent solubility (410.8 and 383.2 µg·mL-1), release profile, permeability, antioxidant properties (ABTS: IC50 = 52.37/52.99 μg·mL-1, DPPH: IC50 = 163.43/173.96 μg·mL-1, CUPRAC: IC0.5 = 122.27/129.59 μg·mL-1, FRAP: IC0.5 = 95.69/98.57 μg·mL-1), and neuroprotective effects (AChE: 39.1%/36.2%, BChE: 76.9%/73.2%) were confirmed.
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Affiliation(s)
- Natalia Rosiak
- Department of Pharmacognosy and Biomaterials, Faculty of Pharmacy, Poznan University of Medical Sciences, 3 Rokietnicka St., 60-806 Poznan, Poland
| | - Ewa Tykarska
- Department of Chemical Technology of Drugs, Poznan University of Medical Sciences, 3 Rokietnicka St., 60-806 Poznan, Poland
| | - Judyta Cielecka-Piontek
- Department of Pharmacognosy and Biomaterials, Faculty of Pharmacy, Poznan University of Medical Sciences, 3 Rokietnicka St., 60-806 Poznan, Poland
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3
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Solomos MA, Punia A, Saboo S, John C, Boyce CW, Chin A, Taggart RV, Smith D, Lamm MS, Schenck L. Evaluating Spray Drying and Co-Precipitation as Manufacturing Processes for Amorphous Solid Dispersions of a Low T g API. J Pharm Sci 2023:S0022-3549(23)00062-X. [PMID: 36822272 DOI: 10.1016/j.xphs.2023.02.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 02/09/2023] [Accepted: 02/09/2023] [Indexed: 02/25/2023]
Abstract
Amorphous solid dispersions feature prominently in the approach to mitigate low bioavailability of poorly water-soluble small molecules, particularly in the early development space focusing on toxicity evaluations and clinical studies in normal healthy volunteers, where high exposures are needed to establish safety margins. Spray drying has been the go-to processing route for a number of reasons, including ubiquitous availability of equipment, the ability to accommodate small scale deliveries, and established processes for delivering single phase amorphous material. Active pharmaceutical ingredients (APIs) with low glass transition temperatures (Tg) can pose challenges to this approach. This study addresses multiple routes towards overcoming issues encountered with a low Tg (∼ 12 °C) API during manufacture of a spray dry intermediate (SDI). Even once formulated as an amorphous solid dispersion (ASD) with HPMCAS-LG, the Tg of the ASD was sufficiently low to require the use of non-ideal solvents, posing safety concerns and ultimately resulting in low yields with frequent process interruptions to resolve product build-up. To resolve challenges with spray drying the HPMCAS-L SDI, higher Tg polymers were assessed during spray drying, and an alternative antisolvent precipitation-based process was evaluated to generate co-precipitated amorphous dispersions (cPAD) with either HPMCAS-L or the additional higher Tg polymers. Both approaches were found to be viable alternatives to achieve single phase ASDs while demonstrating comparable in vitro and in vivo bioperformance compared to the SDI. The results of this effort offer valuable considerations for future early-stage activities for ASDs with low Tg APIs.
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Affiliation(s)
- Marina A Solomos
- Process Research & Development, Merck & Co., Inc., Rahway, NJ, 07033, United States.
| | - Ashish Punia
- Analytical Research & Development, Merck & Co., Inc., Rahway, NJ, 07033, United States
| | - Sugandha Saboo
- Pharmaceutical Sciences, Merck & Co., Inc., Rahway, NJ, 07033, United States
| | - Christopher John
- Formerly at Pharmaceutical Sciences, Merck & Co., Inc., Rahway, NJ 07033, United States; Currently at Discovery Pharmaceutics, Janssen Research and Development, Spring House, PA, 19477, United States
| | - Christopher W Boyce
- Pharmaceutical Sciences, Merck & Co., Inc., Rahway, NJ, 07033, United States
| | - Alexander Chin
- Analytical Research & Development, Merck & Co., Inc., Rahway, NJ, 07033, United States
| | - Robert V Taggart
- Pharmaceutical Sciences, Merck & Co., Inc., Rahway, NJ, 07033, United States
| | - Daniel Smith
- Analytical Research & Development, Merck & Co., Inc., Rahway, NJ, 07033, United States
| | - Matthew S Lamm
- Analytical Research & Development, Merck & Co., Inc., Rahway, NJ, 07033, United States
| | - Luke Schenck
- Process Research & Development, Merck & Co., Inc., Rahway, NJ, 07033, United States
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4
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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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Feng S, Bi J, Yi J, Li X, Li J, Ma Y. Cell wall polysaccharides and mono-/disaccharides as chemical determinants for the texture and hygroscopicity of freeze-dried fruit and vegetable cubes. Food Chem 2022; 395:133574. [DOI: 10.1016/j.foodchem.2022.133574] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 05/13/2022] [Accepted: 06/23/2022] [Indexed: 11/04/2022]
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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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7
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Kashiwakura Y, Sogabe T, Hiyama Y, Arakawa N, Fujii T, Tochio T, Kawai K. Prediction and control of glass transition temperature for hydrogenated starch hydrolysates and its impact on the texture modification of gummy. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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8
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Yang D, Fang L, Yang C. Roles of molecular interaction and mobility on loading capacity and release rate of drug-ionic liquid in long-acting controlled release transdermal patch. J Mol Liq 2022; 352:118752. [DOI: 10.1016/j.molliq.2022.118752] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Degong Yang
- Department of Pharmacy, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
| | | | - Chunrong Yang
- Department of Pharmacy, Shantou University Medical College, No. 22 Xinling Road, Shantou 515041, China
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9
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Development of a Caramel-Based Viscoelastic Reference Material for Cutting Tests at Different Rates. MATERIALS 2021; 14:ma14143798. [PMID: 34300717 PMCID: PMC8306751 DOI: 10.3390/ma14143798] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 06/24/2021] [Accepted: 06/29/2021] [Indexed: 11/17/2022]
Abstract
Cutting speed plays a crucial role for the behavior during and the final quality of viscoelastic foods after cutting and is, in industrial applications, usually adjusted on an empirical basis. Although previous studies investigated the interplay between the time-dependent properties and cutting behavior of model systems on an elastomer basis, there is still a need to elaborate such cause-effect relations for real foods. The aim of this study was to establish a reproducible manufacture of model caramels on a laboratory scale and to investigate the influence of the compositional parameters, moisture, and solid fat content, as well as cutting speed, on cutting behavior. It was possible to visualize ductile-brittle transitions in cutting force profiles, with an increase in cutting speed resulting in effects similar to that induced by a decreasing moisture content or an increasing solid fat content. Quantitatively, the progression of both maximum force and cutting energy reversed when cutting speed increased and composition changed in favor of a more brittle behavior. This work provides the basis for further research on distinct loading phenomena observed during the cutting of foods and for numerical modeling of the cutting process.
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10
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Sterle Zorec B, Zupančič Š, Lavrič Z, Dreu R. Particle properties and drug metastable solubility of simvastatin containing PVP matrix particles prepared by electrospraying technique. Eur J Pharm Sci 2021; 158:105649. [PMID: 33227346 DOI: 10.1016/j.ejps.2020.105649] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 11/07/2020] [Accepted: 11/15/2020] [Indexed: 11/19/2022]
Abstract
In this work the preparation of drug loaded polymeric nanoparticles using electrospraying method and their subsequent characterization is presented. Our purpose was to incorporate the drug with extremely low solubility and low oxidative stability into polyvinylpyrolidone nanoparticles in order to improve its solubility and preserve its chemical stability and hence evaluate the ability of the technology to stabilize such systems in nanoparticulate form. Through the initial screening and optimization of process parameters and polymer solution properties, we detected different morphologies of electrosprayed product particles, where the use of lower molecular weight polymer resulted in a higher process instability as well as in a broader particle size distribution. On the other hand, the solution containing polyvinylpyrolidone with higher molecular weight showed sensitivity to different flow rates and electric field changes, which again resulted in differing the particle size and morphology. The electrosprayed products, prepared by sufficient process stability and having adequately narrow size distribution span, showed lower initial simvastatin contents than theoretically expected, which indicated an oxidative drug degradation already during the electrospraying process. The addition of antioxidants improved simvastatin chemical stability in the particles, during the process itself as well as after accelerated stability study. With an addition of butylated hydroxyanisole antioxidant mixture into initial polymer solution more than 95% of the drug content was preserved after one month at accelerated conditions, whereas in formulations without antioxidants simvastatin content was less than 6%. Antioxidants addition however did not influence only simvastatin stability but also simvastatin solubility. Surprisingly, antioxidants addition did decrease drug solubility in buffers (pH=4 and pH=6.8) for more than a half without any solid state changes of simvastatin. Potential hydrophobic interaction between simvastatin and antioxidants are hindering the drug solubility in the respective buffer, despite drug being in amorphous state.
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Affiliation(s)
- Barbara Sterle Zorec
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, SI-1000 Ljubljana, Slovenia
| | - Špela Zupančič
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, SI-1000 Ljubljana, Slovenia
| | - Zoran Lavrič
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, SI-1000 Ljubljana, Slovenia
| | - Rok Dreu
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva cesta 7, SI-1000 Ljubljana, Slovenia.
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11
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Linnenkugel S, Paterson AH, Huffman LM, Bronlund JE. Prediction of the glass transition temperature of low molecular weight components and polysaccharide mixtures. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2020.110345] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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12
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Rodríguez I, Gautam R, Tinoco AD. Using X-ray Diffraction Techniques for Biomimetic Drug Development, Formulation, and Polymorphic Characterization. Biomimetics (Basel) 2020; 6:1. [PMID: 33396786 PMCID: PMC7838816 DOI: 10.3390/biomimetics6010001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2020] [Revised: 12/19/2020] [Accepted: 12/23/2020] [Indexed: 12/31/2022] Open
Abstract
Drug development is a decades-long, multibillion dollar investment that often limits itself. To decrease the time to drug approval, efforts are focused on drug targets and drug formulation for optimal biocompatibility and efficacy. X-ray structural characterization approaches have catalyzed the drug discovery and design process. Single crystal X-ray diffraction (SCXRD) reveals important structural details and molecular interactions for the manifestation of a disease or for therapeutic effect. Powder X-ray diffraction (PXRD) has provided a method to determine the different phases, purity, and stability of biological drug compounds that possess crystallinity. Recently, synchrotron sources have enabled wider access to the study of noncrystalline or amorphous solids. One valuable technique employed to determine atomic arrangements and local atom ordering of amorphous materials is the pair distribution function (PDF). PDF has been used in the study of amorphous solid dispersions (ASDs). ASDs are made up of an active pharmaceutical ingredient (API) within a drug dispersed at the molecular level in an amorphous polymeric carrier. This information is vital for appropriate formulation of a drug for stability, administration, and efficacy purposes. Natural or biomimetic products are often used as the API or the formulation agent. This review profiles the deep insights that X-ray structural techniques and associated analytical methods can offer in the development of a drug.
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Affiliation(s)
- Israel Rodríguez
- Department of Chemistry, University of Puerto Rico Río Piedras, San Juan, PR 00925, USA
| | - Ritika Gautam
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Arthur D. Tinoco
- Department of Chemistry, University of Puerto Rico Río Piedras, San Juan, PR 00925, USA
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Sarpal K, Munson EJ. Amorphous Solid Dispersions of Felodipine and Nifedipine with Soluplus®: Drug-Polymer Miscibility and Intermolecular Interactions. J Pharm Sci 2020; 110:1457-1469. [PMID: 33359813 DOI: 10.1016/j.xphs.2020.12.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 10/22/2022]
Abstract
The objective of this study was to investigate thermodynamic and kinetic miscibility for two structurally similar model compounds nifedipine (NIF) and felodipine (FEL) when formulated as amorphous solid dispersions (ASDs) with an amphiphilic polymer Soluplus®. Thermodynamic miscibility was studied via melting point depression approach for the two systems. The Flory Huggins theory was used to calculate the interaction parameter and generate the phase diagrams. It was shown that NIF was more miscible in Soluplus® than FEL. The nature of drug polymer interactions was studied by fourier transform infra-red spectroscopy (FTIR) and solid-state nuclear magnetic resonance spectroscopy (ssNMR). The data from spectroscopic analyses showed that both the drugs interacted with Soluplus® through hydrogen bonding interactions. Furthermore, 13C ssNMR data was used to get quantitative estimate of the extent of hydrogen bonding for ASDs samples. Proton relaxation measurements were carried out on ASDs in order to evaluate phase heterogeneity on two different length scales of mixing. The data suggested that better phase homogeneity in NIF:SOL systems especially for lower Soluplus® content ASDs on smaller domains. This could be explained by understanding the extent of hydrogen bonding interactions for these two systems. This study highlights the need to consider thermodynamic and kinetic mixing, when formulating ASDs with the goal of understanding phase mixing between drug and polymer.
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Affiliation(s)
- Kanika Sarpal
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536, USA
| | - Eric J Munson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, KY 40536, USA.
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Wostry M, Plappert H, Grohganz H. Preparation of Co-Amorphous Systems by Freeze-Drying. Pharmaceutics 2020; 12:pharmaceutics12100941. [PMID: 33008124 PMCID: PMC7599809 DOI: 10.3390/pharmaceutics12100941] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/23/2020] [Accepted: 09/30/2020] [Indexed: 11/16/2022] Open
Abstract
Freeze-drying was evaluated as a production technique for co-amorphous systems of a poorly water-soluble drug. Naproxen was freeze-dried together with arginine and lysine as co-former. To increase the solubility of naproxen in the starting solution, the applicability of five surfactants was investigated, namely sodium dodecyl sulfate, pluronic F-127, polyoxyethylene (40) stearate, tween 20 and TPGS 1000. The influence of the surfactant type, surfactant concentration and total solid content to be freeze-dried on the solid state of the sample was investigated. X-ray powder diffraction and differential scanning calorimetry showed that the majority of systems formed co-amorphous one-phase systems. However, at higher surfactant concentrations, and depending on the surfactant type, surfactant reflections were observed in the XRPD analysis upon production. Crystallization of both naproxen and amino acid occurred from some combinations under storage. In conclusion, freeze-drying was shown to be a feasible technique for the production of a selection of co-amorphous drug–amino acid formulations.
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15
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Adhikari BR, Bērziņš K, Fraser-Miller SJ, Gordon KC, Das SC. Co-Amorphization of Kanamycin with Amino Acids Improves Aerosolization. Pharmaceutics 2020; 12:pharmaceutics12080715. [PMID: 32751553 PMCID: PMC7465208 DOI: 10.3390/pharmaceutics12080715] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 07/27/2020] [Accepted: 07/28/2020] [Indexed: 12/24/2022] Open
Abstract
Different formulation techniques have been investigated to prepare highly aerosolizable dry powders to deliver a high dose of antibiotics to the lung for treating local infections. In this study, we investigated the influence of the co-amorphization of a model drug, kanamycin, with selected amino acids (valine, methionine, phenylalanine, and tryptophan) by co-spray drying on its aerosolization. The co-amorphicity was confirmed by thermal technique. The physical stability was monitored using low-frequency Raman spectroscopy coupled with principal component analysis. Except for the kanamycin-valine formulation, all the formulations offered improved fine particle fraction (FPF) with the highest FPF of 84% achieved for the kanamycin-methionine formulation. All the co-amorphous formulations were physically stable for 28 days at low relative humidity (25 °C/<15% RH) and exhibited stable aerosolization. At higher RH (53%), even though methionine transformed into its crystalline counterpart, the kanamycin-methionine formulation offered the best aerosolization stability without any decrease in FPF. While further studies are warranted to reveal the underlying mechanism, this study reports that the co-amorphization of kanamycin with amino acids, especially with methionine, has the potential to be developed as a high dose kanamycin dry powder formulation.
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Affiliation(s)
| | - Kārlis Bērziņš
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand; (K.B.); (S.J.F.-M.); (K.C.G.)
| | - Sara J. Fraser-Miller
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand; (K.B.); (S.J.F.-M.); (K.C.G.)
| | - Keith C. Gordon
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand; (K.B.); (S.J.F.-M.); (K.C.G.)
| | - Shyamal C. Das
- School of Pharmacy, University of Otago, Dunedin 9054, New Zealand;
- Correspondence: ; Tel.: +64-34794262
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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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17
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Bannow J, Karl M, Larsen PE, Hwu ET, Rades T. Direct Measurement of Lateral Molecular Diffusivity on the Surface of Supersaturated Amorphous Solid Dispersions by Atomic Force Microscopy. Mol Pharm 2020; 17:1715-1722. [PMID: 32207959 DOI: 10.1021/acs.molpharmaceut.0c00176] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Quantifying molecular surface diffusivity is of broad interest in many different fields of science and technology. In this study, the method of surface grating decay is utilized to investigate the surface diffusion of practical relevant amorphous solid dispersions of indomethacin and the polymeric excipient Soluplus (a polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer) at various polymer concentrations (1-20% w/w). The study confirms that measuring surface diffusivity below the system's glass transition temperature is possible with a simplified atomic force microscopy setup. Results highlight a striking polymer influence on the surface diffusivity of drug molecules at low polymer concentrations and a turnover point to a polymer dominated diffusion at around three percent (w/w) polymer concentration. The surface diffusion measurements further correlate well with the observed increase in physical stability of the system as measured by X-ray powder diffraction. These findings are of vital interest in both the applied use and fundamental understanding of amorphous solid dispersions.
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Affiliation(s)
- Jacob Bannow
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 København Ø, Denmark
| | - Maximilian Karl
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 København Ø, Denmark
| | - Peter Emil Larsen
- Department of Health Technology, Technical University of Denmark, Ørsteds Plads 345C, 2800 Kongens Lyngby, Denmark
| | - En Te Hwu
- Department of Health Technology, Technical University of Denmark, Ørsteds Plads 345C, 2800 Kongens Lyngby, Denmark
| | - Thomas Rades
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 København Ø, Denmark
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18
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Ngono F, Cuello GJ, Jiménez-Ruiz M, Willart JF, Guerain M, Wildes AR, Stunault A, Hamoudi-Ben Yelles CM, Affouard F. Morphological and Structural Properties of Amorphous Lactulose Studied by Scanning Electron Microscopy, Polarized Neutron Scattering, and Molecular Dynamics Simulations. Mol Pharm 2020; 17:10-20. [PMID: 31710493 DOI: 10.1021/acs.molpharmaceut.9b00767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Morphological and structural properties of amorphous disaccharide lactulose (C12H22O11), obtained by four different amorphization methods (milling, quenching of the melt form, spray-drying, and freeze-drying), are investigated by scanning electron microscopy, polarized neutron scattering, and molecular dynamics simulations. While major differences on the morphology of the different amorphous samples are revealed by scanning electron microscopy images, only subtle structural differences have been found by polarized neutron scattering. Microstructure of the milled sample appears slightly different from the other amorphized materials with the presence of remaining crystalline germs which are not detected by X-ray diffraction. Quantitative phase analysis shows that these remaining crystallites are present in a ratio between 1 and 4%, and their size remains between 20 and 30 nm despite a long milling time of about 8 h. The impact of the change in tautomeric concentrations on the physical properties of lactulose in the amorphous state has been investigated from molecular dynamics simulations. It is suggested that chemical differences between lactulose tautomers could be at the origin of small structural differences detected by polarized neutron scattering.
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Affiliation(s)
- Frederic Ngono
- Universite de Lille, CNRS, INRA, ENSCL, UMR 8207 - UMET - Unité Matériaux et Transformations , F-59000 Lille , France.,Institut Laue Langevin , 71 Av. des Martyrs, CS 20156 , F-38042 Grenoble , France
| | - Gabriel J Cuello
- Institut Laue Langevin , 71 Av. des Martyrs, CS 20156 , F-38042 Grenoble , France
| | - Monica Jiménez-Ruiz
- Institut Laue Langevin , 71 Av. des Martyrs, CS 20156 , F-38042 Grenoble , France
| | - Jean-Francois Willart
- Universite de Lille, CNRS, INRA, ENSCL, UMR 8207 - UMET - Unité Matériaux et Transformations , F-59000 Lille , France
| | - Mathieu Guerain
- Universite de Lille, CNRS, INRA, ENSCL, UMR 8207 - UMET - Unité Matériaux et Transformations , F-59000 Lille , France
| | - Andrew R Wildes
- Institut Laue Langevin , 71 Av. des Martyrs, CS 20156 , F-38042 Grenoble , France
| | - Anne Stunault
- Institut Laue Langevin , 71 Av. des Martyrs, CS 20156 , F-38042 Grenoble , France
| | | | - Frederic Affouard
- Universite de Lille, CNRS, INRA, ENSCL, UMR 8207 - UMET - Unité Matériaux et Transformations , F-59000 Lille , France
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19
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Gervasi V, Cullen S, McCoy T, Crean A, Vucen S. Application of a mixture DOE for the prediction of formulation critical temperatures during lyophilisation process optimisation. Int J Pharm 2019; 572:118807. [PMID: 31678526 DOI: 10.1016/j.ijpharm.2019.118807] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2019] [Revised: 10/12/2019] [Accepted: 10/16/2019] [Indexed: 01/27/2023]
Abstract
During lyophilisation cycle design, primary drying parameters (chamber pressure and shelf temperature) are adjusted to maximize the sublimation rate and prevent cake collapse, by maintaining the product continuously below its critical temperatures. The objective of this study was to employ mixture design of experiments to generate empirical models capable of predicting glass transition of the maximally freeze concentrated solution (Tg') and collapse temperature (Tc) of amorphous protein (BSA and IgG1) formulations. Additionally, the models developed aid the design of high concentration protein formulations with maximised critical temperatures to obtain shorter and more cost-effective lyophilisation cycles. Formulations contain sucrose as cryo/lyo-protectant and arginine/arginine-HCl as multifunctional excipient (e.g. solubility enhancer, viscosity and aggregation suppressor). The impact of formulation components at varied ratios on critical temperatures was evaluated; the amorphous excipients decrease critical temperatures, on the contrary, the protein increases critical temperatures. The robustness of the empirical models generated with BSA formulations was verified with BSA and IgG1 formulations. The models showed greater accuracy in predicting Tg' than the Fox-Flory equation. For the first time, empirical models are reported to predict both critical temperatures. Finally, unconventional collapse events observed for formulations with and without arginine/arginine-HCl at different protein concentrations are also discussed.
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Affiliation(s)
- V Gervasi
- Synthesis and Solid State Pharmaceutical Centre (SSPC), School of Pharmacy, University College Cork, Cork, Ireland; Manufacturing Science Department, Sanofi, Waterford, Ireland
| | - S Cullen
- Manufacturing Science Department, Sanofi, Waterford, Ireland
| | - T McCoy
- Global Biologics Drug Product Development (BioDPD), Sanofi R&D, Framingham, MA, USA
| | - A Crean
- Synthesis and Solid State Pharmaceutical Centre (SSPC), School of Pharmacy, University College Cork, Cork, Ireland
| | - S Vucen
- Synthesis and Solid State Pharmaceutical Centre (SSPC), School of Pharmacy, University College Cork, Cork, Ireland.
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20
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Nguyen KTT, Frijlink HW, Hinrichs WLJ. Inhomogeneous Distribution of Components in Solid Protein Pharmaceuticals: Origins, Consequences, Analysis, and Resolutions. J Pharm Sci 2019; 109:134-153. [PMID: 31606540 DOI: 10.1016/j.xphs.2019.10.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2019] [Revised: 10/02/2019] [Accepted: 10/03/2019] [Indexed: 12/21/2022]
Abstract
Successful development of stable solid protein formulations usually requires the addition of one or several excipients to achieve optimal stability. In these products, there is a potential risk of an inhomogeneous distribution of the various ingredients, specifically the ratio of protein and stabilizer may vary. Such inhomogeneity can be detrimental for stability but is mostly neglected in literature. In the past, it was challenging to analyze inhomogeneous component distribution, but recent advances in analytical techniques have revealed new options to investigate this phenomenon. This paper aims to review fundamental aspects of the inhomogeneous distribution of components of freeze-dried and spray-dried protein formulations. Four key topics will be presented and discussed, including the sources of component inhomogeneity, its consequences on protein stability, the analytical methods to reveal component inhomogeneity, and possible solutions to prevent or mitigate inhomogeneity.
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Affiliation(s)
- Khanh T T Nguyen
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, 9700 RB Groningen, the Netherlands
| | - Henderik W Frijlink
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, 9700 RB Groningen, the Netherlands
| | - Wouter L J Hinrichs
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, 9700 RB Groningen, the Netherlands.
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21
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Chmiel K, Knapik-Kowalczuk J, Jachowicz R, Paluch M. Broadband dielectric spectroscopy as an experimental alternative to calorimetric determination of the solubility of drugs into polymer matrix: Case of flutamide and various polymeric matrixes. Eur J Pharm Biopharm 2019; 136:231-239. [PMID: 30703545 DOI: 10.1016/j.ejpb.2019.01.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Revised: 12/27/2018] [Accepted: 01/25/2019] [Indexed: 11/24/2022]
Abstract
In this paper we determined the solubility limits of the amorphous flutamide within the two different polymeric matrixes - poly vinylpyrrolidone and poly vinylacetate. In order to achieve this goal, series of broadband dielectric spectroscopy measurements were performed. As a result we found that the maximal amount of the drug that can be successfully dissolved within the PVAc (maintaining the non-supersaturated conditions) is equal to 35 wt% of the amorphous solid dispersion system. Interestingly enough similar results, in terms of solubility limits, were achieved utilizing significantly higher amount of the pharmaceutical - 71 wt% - in the PVP matrix. Accordingly, we established the following relationship in the solubility limits of the amorphous flutamide dispersed within examined polymer matrixes: PVP > PVAc. It is worth highlighting that in order to preserve the thermodynamic stability - one of the two contributors to the physical stability - drug loading in the amorphous solid dispersion system should not exceed its solubility limits. Hence, choosing appropriate amount of the polymer addition will determine if obtained system remains physically stable. Subsequently, we presented the "stability maps" for all investigated FL-based ASD systems from which one might predict the stabilization effect exerted by certain amount of polymer.
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Affiliation(s)
- K Chmiel
- Institute of Physics, University of Silesia, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, 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, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland; Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - R Jachowicz
- Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Jagiellonian University, Medyczna 9, 30-688 Kraków, Poland
| | - M Paluch
- Institute of Physics, University of Silesia, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland; Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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22
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Atawa B, Correia NT, Couvrat N, Affouard F, Coquerel G, Dargent E, Saiter A. Molecular mobility of amorphous N-acetyl-α-methylbenzylamine and Debye relaxation evidenced by dielectric relaxation spectroscopy and molecular dynamics simulations. Phys Chem Chem Phys 2019; 21:702-717. [DOI: 10.1039/c8cp04880k] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Molecular mobility of NAC-MBA molecule is described by means of DRS, FSC and MD simulations.
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23
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Thorat AA, Forny L, Meunier V, Taylor LS, Mauer LJ. Effects of Mono-, Di-, and Tri-Saccharides on the Stability and Crystallization of Amorphous Sucrose. J Food Sci 2018; 83:2827-2839. [PMID: 30320406 DOI: 10.1111/1750-3841.14357] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 08/24/2018] [Accepted: 08/27/2018] [Indexed: 11/29/2022]
Abstract
Amorphous sucrose is a component of many food products but is prone to crystallize over time, thereby altering product quality and limiting shelf-life. A systematic investigation was conducted to determine the effects of two monosaccharides (glucose and fructose), five disaccharides (lactose, maltose, trehalose, isomaltulose, and cellobiose), and two trisaccharides (maltotriose and raffinose) on the stability of amorphous sucrose in lyophilized two-component sucrose-saccharide blends exposed to different relative humidity (RH) and temperature environmental conditions relevant for food product storage. Analyses included X-ray diffraction, differential scanning calorimetry, microscopy, and moisture content determination, as well as crystal structure overlays. All lyophiles were initially amorphous, but during storage the presence of an additional saccharide tended to delay sucrose crystallization. All samples remained amorphous when stored at 11% and 23% RH at 22 °C, but increasing the RH to 33% RH and/or increasing the temperature to 40 °C resulted in variations in crystallization onset times. Monosaccharide additives were less effective sucrose crystallization inhibitors relative to di- and tri-saccharides. Within the group of di- and tri-saccharides, effectiveness depended on the specific saccharide added, and no clear trends were observed with saccharide molecular weight and other commonly studied factors such as system glass transition temperature. Molecular level interactions, as evident in crystal structure overlays of the added saccharides and sucrose and morphological differences in crystals formed, appeared to contribute to the effectiveness of a di- or tri-saccharide in delaying sucrose crystallization. In conclusion, several di- and tri-saccharides show promise for use as additives to delay the crystallization kinetics of amorphous sucrose during storage at moderate temperatures and low RH conditions. PRACTICAL APPLICATION: Amorphous sucrose is desirable in a variety of food products, wherein crystallization can be problematic for texture and shelf-life. This study documents how different mono-, di-, and tri-saccharides influence the crystallization of sucrose. Monosaccharide additives were less effective sucrose crystallization inhibitors relative to di- and tri-saccharides. These findings increase the understanding of how different mono-, di-, and tri-saccharide structures and their solid-state properties influence the crystallization of amorphous sucrose and show that several di- and tri-saccharides have potential for use as sucrose crystallization inhibitors.
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Affiliation(s)
- Alpana A Thorat
- Dept. of Food Science, Purdue Univ., 745 Agriculture Mall Drive, West Lafayette, IN, 47907, U.S.A.,Dept. of Industrial and Physical Pharmacy, Purdue Univ., 575 Stadium Mall Drive, West Lafayette, IN, 47907, U.S.A
| | - Laurent Forny
- Nestlé Research Center, Vers-chez-les-Blanc, Route du Jorat, 1005, Lausanne, Switzerland
| | - Vincent Meunier
- Nestlé Research Center, Vers-chez-les-Blanc, Route du Jorat, 1005, Lausanne, Switzerland
| | - Lynne S Taylor
- Dept. of Industrial and Physical Pharmacy, Purdue Univ., 575 Stadium Mall Drive, West Lafayette, IN, 47907, U.S.A
| | - Lisa J Mauer
- Dept. of Food Science, Purdue Univ., 745 Agriculture Mall Drive, West Lafayette, IN, 47907, U.S.A
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24
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Russo MG, Baldoni HA, Dávila YA, Brusau EV, Ellena JA, Narda GE. Rational Design of a Famotidine-Ibuprofen Coamorphous System: An Experimental and Theoretical Study. J Phys Chem B 2018; 122:8772-8782. [PMID: 30160964 DOI: 10.1021/acs.jpcb.8b06105] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Famotidine (FMT) and ibuprofen (IBU) were used as model drugs to obtain coamorphous systems, where the guanidine moiety of the antacid and the carboxylic group of the nonsteroidal anti-inflammatory drug could potentially participate in H-bonds leading to a given structural motif. The systems were prepared in 3:7, 1:1, and 7:3 FMT and IBU molar ratios, respectively. The latter two became amorphous after 180 min of comilling. FMT-IBU (1:1) exhibited a higher physical stability in assays at 4, 25, and 40 °C up to 60 days. Fourier transform infrared spectroscopy accounted for important modifications in the vibrational behavior of those functional groups, allowing us to ascribe the skill of 1:1 FMT-IBU for remaining amorphous to equimolar interactions between both components. Density functional theory calculations followed by quantum theory of atoms in molecules analysis were then conducted to support the presence of the expected FMT-IBU heterodimer with consequent formation of a R228 structural motif. The electron density (ρ) and its Laplacian (∇2ρ) values suggested a high strength of the specific intermolecular interactions. Molecular dynamics simulations to build an amorphous assembly, followed by radial distribution function analysis on the modeled phase were further employed. The results demonstrate that it is a feasible rational design of a coamorphous system, satisfactorily stabilized by molecular-level interactions leading to the expected motif.
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Affiliation(s)
- Marcos G Russo
- Departamento de Química, Facultad de Química, Bioquímica y Farmacia , Universidad Nacional de San Luis , Chacabuco 917 , D5700HOJ San Luis , Argentina.,Instituto de Investigación en Tecnología Química (INTEQUI-UNSL), CONICET , Almirante Brown 1455 , D5700HGC San Luis , Argentina
| | - Hector A Baldoni
- Departamento de Química, Facultad de Química, Bioquímica y Farmacia , Universidad Nacional de San Luis , Chacabuco 917 , D5700HOJ San Luis , Argentina.,Instituto de Matemática Aplicada San Luis (IMASL-UNSL), CONICET , Italia 1556 , D5700HHW San Luis , Argentina
| | - Yamina A Dávila
- Departamento de Química, Facultad de Química, Bioquímica y Farmacia , Universidad Nacional de San Luis , Chacabuco 917 , D5700HOJ San Luis , Argentina.,Instituto de Investigación en Tecnología Química (INTEQUI-UNSL), CONICET , Almirante Brown 1455 , D5700HGC San Luis , Argentina
| | - Elena V Brusau
- Departamento de Química, Facultad de Química, Bioquímica y Farmacia , Universidad Nacional de San Luis , Chacabuco 917 , D5700HOJ San Luis , Argentina.,Instituto de Investigación en Tecnología Química (INTEQUI-UNSL), CONICET , Almirante Brown 1455 , D5700HGC San Luis , Argentina
| | - Javier A Ellena
- Instituto de Fisica de São Carlos , Universidad de São Paulo , CP 369, 13560-970 São Carlos , São Paulo , Brazil
| | - Griselda E Narda
- Departamento de Química, Facultad de Química, Bioquímica y Farmacia , Universidad Nacional de San Luis , Chacabuco 917 , D5700HOJ San Luis , Argentina.,Instituto de Investigación en Tecnología Química (INTEQUI-UNSL), CONICET , Almirante Brown 1455 , D5700HGC San Luis , Argentina
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25
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Wolf A, Thakral S, Mulier KE, Suryanarayanan R, Beilman GJ. Evaluation of novel formulations of d-β-hydroxybutyrate and melatonin in a rat model of hemorrhagic shock. Int J Pharm 2018; 548:104-112. [DOI: 10.1016/j.ijpharm.2018.06.046] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2018] [Revised: 06/03/2018] [Accepted: 06/20/2018] [Indexed: 10/28/2022]
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26
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Askin S, Zhao M, Gonçalves AD, Gaisford S, Craig DQM. The Development of Quasi-isothermal Calorimetry for the Measurement of Drug–Polymer Miscibility and Crystallization Kinetics: Olanzapine-Loaded PLGA Microparticles. Mol Pharm 2018; 15:3332-3342. [DOI: 10.1021/acs.molpharmaceut.8b00364] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Sean Askin
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Min Zhao
- School of Pharmacy, Queen’s University Belfast, 97 Lisburn Road, Belfast BT9 7BL, United Kingdom
| | - Andrea D. Gonçalves
- DPDD Drug Delivery, GlaxoSmithKline R&D, Gunnels Wood Road, Stevenage SG1 2NY, United Kingdom
| | - Simon Gaisford
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
| | - Duncan Q. M. Craig
- UCL School of Pharmacy, 29-39 Brunswick Square, London WC1N 1AX, United Kingdom
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27
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Stärtzel P. Arginine as an Excipient for Protein Freeze-Drying: A Mini Review. J Pharm Sci 2018; 107:960-967. [DOI: 10.1016/j.xphs.2017.11.015] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2017] [Revised: 10/26/2017] [Accepted: 11/16/2017] [Indexed: 12/14/2022]
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28
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Schliesser JM, Huang B, Sahu SK, Asplund M, Navrotsky A, Woodfield BF. Experimental heat capacities, excess entropies, and magnetic properties of bulk and nano Fe3O4-Co3O4 and Fe3O4-Mn3O4 spinel solid solutions. J SOLID STATE CHEM 2018. [DOI: 10.1016/j.jssc.2018.01.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Thorat AA, Forny L, Meunier V, Taylor LS, Mauer LJ. Effects of Chloride and Sulfate Salts on the Inhibition or Promotion of Sucrose Crystallization in Initially Amorphous Sucrose-Salt Blends. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2017; 65:11259-11272. [PMID: 29182869 DOI: 10.1021/acs.jafc.7b04746] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The effects of salts on the stability of amorphous sucrose and its crystallization in different environments were investigated. Chloride (LiCl, NaCl, KCl, MgCl2, CaCl2, CuCl2, FeCl2, FeCl3, and AlCl3) and sulfate salts with the same cations (Na2SO4, K2SO4, MgSO4, CuSO4, Fe(II)SO4, and Fe(III)SO4) were studied. Samples (sucrose controls and sucrose:salt 1:0.1 molar ratios) were lyophilized, stored in controlled temperature and relative humidity (RH) conditions, and monitored for one month using X-ray diffraction. Samples were also analyzed by differential scanning calorimetry, microscopy, and moisture sorption techniques. All lyophiles were initially amorphous, but during storage the presence of a salt had a variable impact on sucrose crystallization. While all samples remained amorphous when stored at 11 and 23% RH at 25 °C, increasing the RH to 33 and 40% RH resulted in variations in crystallization onset times. The recrystallization time generally followed the order monovalent cations < sucrose < divalent cations < trivalent cations. The presence of a salt typically increased water sorption as compared to sucrose alone when stored at the same RH; however, anticrystallization effects were observed for sucrose combined with salts containing di- and trivalent cations in spite of the increased water content. The cation valency and hydration number played a major role in dictating the impact of the added salt on sucrose crystallization.
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Affiliation(s)
- Alpana A Thorat
- Department of Food Science, Purdue University , 745 Agriculture Mall Drive, West Lafayette, 9 Indiana 47907, United States
- Department of Industrial and Physical Pharmacy, Purdue University , 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Laurent Forny
- Nestlé Research Center, Vers-chez-les-Blanc , Route du Jorat, 1005 Lausanne, Switzerland
| | - Vincent Meunier
- Nestlé Research Center, Vers-chez-les-Blanc , Route du Jorat, 1005 Lausanne, Switzerland
| | - Lynne S Taylor
- Department of Industrial and Physical Pharmacy, Purdue University , 575 Stadium Mall Drive, West Lafayette, Indiana 47907, United States
| | - Lisa J Mauer
- Department of Food Science, Purdue University , 745 Agriculture Mall Drive, West Lafayette, 9 Indiana 47907, United States
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30
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Thakral S, Wolf A, Beilman GJ, Suryanarayanan R. Development and in vivo evaluation of a novel lyophilized formulation for the treatment of hemorrhagic shock. Int J Pharm 2017; 537:162-171. [PMID: 29274369 DOI: 10.1016/j.ijpharm.2017.12.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 11/10/2017] [Accepted: 12/10/2017] [Indexed: 01/24/2023]
Abstract
Hemorrhagic shock, caused by trauma, is a leading cause of preventable death. A combination treatment of d-β-hydroxybutyrate (BHB) and melatonin (MLT), in dimethyl sulfoxide - water, increased survival. A freeze-dried BHB-MLT formulation, with a short reconstitution time, has been developed. This intravenous formulation, prepared with an aqueous vehicle, completely eliminated dimethyl sulfoxide, thereby avoiding the potential problems associated with this solvent. The poor aqueous solubility of MLT necessitated the use of polyvinylpyrrolidine (PVP) as a complexing agent. Thus the prelyophilization solution contained BHB (2 M), MLT (21.5 mM) and PVP (40 mM). Using a combination of low-temperature X-ray diffractometry and thermal analysis, the lyophilization process parameters were optimized. Infra-red spectra revealed hydrogen bonding interaction between PVP and MLT, while BHB crystallized as BHB.0.25 H2O in the final lyophile. The formulation improved survival in a rat model of hemorrhagic shock. Based on the increase in rate of survival and longer survival time compared to untreated animals, we conclude that this formulation can serve as a promising first line of treatment for hemorrhagic shock.
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Affiliation(s)
- Seema Thakral
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, MN, 55455, USA
| | - Andrea Wolf
- Department of Surgery, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Gregory J Beilman
- Department of Surgery, University of Minnesota, Minneapolis, MN, 55455, USA
| | - Raj Suryanarayanan
- Department of Pharmaceutics, College of Pharmacy, University of Minnesota, MN, 55455, USA.
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31
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Zhu S, Gao H, Babu S, Garad S. Co-Amorphous Formation of High-Dose Zwitterionic Compounds with Amino Acids To Improve Solubility and Enable Parenteral Delivery. Mol Pharm 2017; 15:97-107. [PMID: 29164901 DOI: 10.1021/acs.molpharmaceut.7b00738] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Solubilization of parenteral drugs is a high unmet need in both preclinical and clinical drug development. Recently, co-amorphous drug formulation has emerged as a new strategy to solubilize orally dosed drugs. The aim of the present study is to explore the feasibility of using the co-amorphous strategy to enable the dosing of parenteral zwitterionic drugs at a high concentration. A new screening procedure was established with solubility as the indicator for co-amorphous co-former selection, and lyophilization was established as the method for co-amorphous formulation preparation. Various amino acids were screened, and tryptophan was found to be the most powerful in improving the solubility of ofloxacin when lyophilized with ofloxacin at a 1:1 weight ratio, with more than 10 times solubility increase. X-ray powder diffraction showed complete amorphization of both components, and an elevated Tg compared with the theoretical value was observed in differential scanning calorimetry. Fourier transform infrared spectroscopy revealed that hydrogen bonding and π-π stacking were possibly involved in the formation of a co-amorphous system in the solid state. Further solution-state characterization revealed the involvement of ionic interactions and π-π stacking in maintaining a high concentration of ofloxacin in solution. Furthermore, co-amorphous ofloxacin/tryptophan at 1:1 weight ratio was both physically and chemically stable for at least 2 months at 40 °C/75% RH. Lastly, the same screening procedure was validated with two more zwitterionic compounds, showing its promise as a routine screening methodology to solubilize and enable the parenteral delivery of zwitterionic compounds.
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Affiliation(s)
- Saijie Zhu
- Chemical and Pharmaceutical Profiling, Technical Research and Development, China Novartis Institutes for Biomedical Research Co., Ltd , Shanghai 201203, China
| | - Huisheng Gao
- Chemical and Pharmaceutical Profiling, Technical Research and Development, China Novartis Institutes for Biomedical Research Co., Ltd , Shanghai 201203, China
| | - Sreehari Babu
- Chemical and Pharmaceutical Profiling, Technical Research and Development, China Novartis Institutes for Biomedical Research Co., Ltd , Shanghai 201203, China
| | - Sudhakar Garad
- Chemical and Pharmaceutical Profiling, Technical Research and Development, Novartis Pharmaceuticals , Cambridge, Massachusetts 02139, United States
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32
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Newman A, Reutzel-Edens SM, Zografi G. Coamorphous Active Pharmaceutical Ingredient-Small Molecule Mixtures: Considerations in the Choice of Coformers for Enhancing Dissolution and Oral Bioavailability. J Pharm Sci 2017; 107:5-17. [PMID: 28989014 DOI: 10.1016/j.xphs.2017.09.024] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2017] [Revised: 09/19/2017] [Accepted: 09/22/2017] [Indexed: 10/18/2022]
Abstract
In the recent years, coamorphous systems, containing an active pharmaceutical ingredient (API) and a small molecule coformer have appeared as alternatives to the use of either amorphous solid dispersions containing polymer or cocrystals of API and small molecule coformers, to improve the dissolution and oral bioavailability of poorly soluble crystalline API. This Commentary article considers the relative properties of amorphous solid dispersions and coamorphous systems in terms of methods of preparation; miscibility; glass transition temperature; physical stability; hygroscopicity; and aqueous dissolution. It also considers important questions concerning the fundamental criteria to be used for the proper selection of a small molecule coformer regarding its ability to form either coamorphous or cocrystal systems. Finally, we consider various aspects of product development that are specifically associated with the formulation of commercial coamorphous systems as solid oral dosage forms. These include coformer selection; screening; methods of preparation; preformulation; physical stability; bioavailability; and final formulation. Through such an analysis of coamorphous API-small molecule coformer systems, against the more widely studied API-polymer dispersions and cocrystals, it is believed that the strengths and weaknesses of coamorphous systems can be better understood, leading to more efficient formulation and manufacture of such systems for enhancing oral bioavailability.
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Affiliation(s)
- Ann Newman
- Seventh Street Development Group LLC, Kure Beach, North Carolina 28449.
| | - Susan M Reutzel-Edens
- Small Molecule Design and Development, Eli Lilly and Company, Indianapolis, Indiana 46285
| | - George Zografi
- School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53706
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33
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Fongin S, Kawai K, Harnkarnsujarit N, Hagura Y. Effects of water and maltodextrin on the glass transition temperature of freeze-dried mango pulp and an empirical model to predict plasticizing effect of water on dried fruits. J FOOD ENG 2017. [DOI: 10.1016/j.jfoodeng.2017.04.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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34
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Glass Transition-Associated Structural Relaxations and Applications of Relaxation Times in Amorphous Food Solids: a Review. FOOD ENGINEERING REVIEWS 2017. [DOI: 10.1007/s12393-017-9166-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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35
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Ren F, Dong D, Yu B, Hou ZH, Cui B. Rheology, thermal properties, and microstructure of heat-induced gel of whey protein-acetylated potato starch. STARCH-STARKE 2017. [DOI: 10.1002/star.201600344] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Fei Ren
- College of Food Science and Engineering; Qilu University of Technology; Jinan Shandong P. R. China
| | - Die Dong
- College of Food Science and Engineering; Qilu University of Technology; Jinan Shandong P. R. China
| | - Bin Yu
- College of Food Science and Engineering; Qilu University of Technology; Jinan Shandong P. R. China
| | - Zhao-hua Hou
- College of Food Science and Engineering; Qilu University of Technology; Jinan Shandong P. R. China
| | - Bo Cui
- College of Food Science and Engineering; Qilu University of Technology; Jinan Shandong P. R. China
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36
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Zografi G, Newman A. Interrelationships Between Structure and the Properties of Amorphous Solids of Pharmaceutical Interest. J Pharm Sci 2017; 106:5-27. [DOI: 10.1016/j.xphs.2016.05.001] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Revised: 04/27/2016] [Accepted: 05/03/2016] [Indexed: 10/21/2022]
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37
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Sritham E, Gunasekaran S. Thermal evaluation of sucrose-maltodextrin-sodium citrate bioglass: Glass transition temperature. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.04.030] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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38
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Pansare SK, Patel SM. Practical Considerations for Determination of Glass Transition Temperature of a Maximally Freeze Concentrated Solution. AAPS PharmSciTech 2016; 17:805-19. [PMID: 27193003 DOI: 10.1208/s12249-016-0551-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/09/2016] [Indexed: 12/31/2022] Open
Abstract
Glass transition temperature is a unique thermal characteristic of amorphous systems and is associated with changes in physical properties such as heat capacity, viscosity, electrical resistance, and molecular mobility. Glass transition temperature for amorphous solids is referred as (T g), whereas for maximally freeze concentrated solution, the notation is (T g'). This article is focused on the factors affecting determination of T g' for application to lyophilization process design and frozen storage stability. Also, this review provides a perspective on use of various types of solutes in protein formulation and their effect on T g'. Although various analytical techniques are used for determination of T g' based on the changes in physical properties associated with glass transition, the differential scanning calorimetry (DSC) is the most commonly used technique. In this article, an overview of DSC technique is provided along with brief discussion on the alternate analytical techniques for T g' determination. Additionally, challenges associated with T g' determination, using DSC for protein formulations, are discussed. The purpose of this review is to provide a practical industry perspective on determination of T g' for protein formulations as it relates to design and development of lyophilization process and/or for frozen storage; however, a comprehensive review of glass transition temperature (T g, T g'), in general, is outside the scope of this work.
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Izutsu KI, Kusano R, Arai R, Yoshida H, Ito M, Shibata H, Sugano K, Goda Y, Terada K. Effect of co-solutes and process variables on crystallinity and the crystal form of freeze-dried myo -inositol. Int J Pharm 2016; 509:368-374. [DOI: 10.1016/j.ijpharm.2016.06.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 05/28/2016] [Accepted: 06/05/2016] [Indexed: 11/25/2022]
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40
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Mehta M, McKenna GB, Suryanarayanan R. Molecular mobility in glassy dispersions. J Chem Phys 2016; 144:204506. [DOI: 10.1063/1.4950768] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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41
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Constantin JG, Schneider M, Corti HR. Glass Transition Temperature of Saccharide Aqueous Solutions Estimated with the Free Volume/Percolation Model. J Phys Chem B 2016; 120:5047-55. [PMID: 27176640 DOI: 10.1021/acs.jpcb.6b01841] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The glass transition temperature of trehalose, sucrose, glucose, and fructose aqueous solutions has been predicted as a function of the water content by using the free volume/percolation model (FVPM). This model only requires the molar volume of water in the liquid and supercooled regimes, the molar volumes of the hypothetical pure liquid sugars at temperatures below their pure glass transition temperatures, and the molar volumes of the mixtures at the glass transition temperature. The model is simplified by assuming that the excess thermal expansion coefficient is negligible for saccharide-water mixtures, and this ideal FVPM becomes identical to the Gordon-Taylor model. It was found that the behavior of the water molar volume in trehalose-water mixtures at low temperatures can be obtained by assuming that the FVPM holds for this mixture. The temperature dependence of the water molar volume in the supercooled region of interest seems to be compatible with the recent hypothesis on the existence of two structure of liquid water, being the high density liquid water the state of water in the sugar solutions. The idealized FVPM describes the measured glass transition temperature of sucrose, glucose, and fructose aqueous solutions, with much better accuracy than both the Gordon-Taylor model based on an empirical kGT constant dependent on the saccharide glass transition temperature and the Couchman-Karasz model using experimental heat capacity changes of the components at the glass transition temperature. Thus, FVPM seems to be an excellent tool to predict the glass transition temperature of other aqueous saccharides and polyols solutions by resorting to volumetric information easily available.
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Affiliation(s)
- Julian Gelman Constantin
- Instituto de Química Física de los Materiales, Ambiente y Energía (INQUIMAE), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160 - Ciudad Universitaria , C1428EGA Buenos Aires, Argentina
| | - Matthias Schneider
- Instituto de Química Física de los Materiales, Ambiente y Energía (INQUIMAE), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160 - Ciudad Universitaria , C1428EGA Buenos Aires, Argentina
| | - Horacio R Corti
- Instituto de Química Física de los Materiales, Ambiente y Energía (INQUIMAE), Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160 - Ciudad Universitaria , C1428EGA Buenos Aires, Argentina.,Departamento de Física de la Materia Condensada, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica , Av. General Paz 1499, San Martin, 1650 Buenos Aires, Argentina
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42
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Dengale SJ, Grohganz H, Rades T, Löbmann K. Recent advances in co-amorphous drug formulations. Adv Drug Deliv Rev 2016; 100:116-25. [PMID: 26805787 DOI: 10.1016/j.addr.2015.12.009] [Citation(s) in RCA: 295] [Impact Index Per Article: 36.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 12/09/2015] [Indexed: 11/19/2022]
Abstract
Co-amorphous drug delivery systems have recently gained considerable interest in the pharmaceutical field because of their potential to improve oral bioavailability of poorly water-soluble drugs through drug dissolution enhancement as a result of the amorphous nature of the material. A co-amorphous system is characterized by the use of only low molecular weight components that are mixed into a homogeneous single-phase co-amorphous blend. The use of only low molecular weight co-formers makes this approach very attractive, as the amount of amorphous stabilizer can be significantly reduced compared with other amorphous stabilization techniques. Because of this, several research groups started to investigate the co-amorphous formulation approach, resulting in an increasing amount of scientific publications over the last few years. This study provides an overview of the co-amorphous field and its recent findings. In particular, we investigate co-amorphous formulations from the viewpoint of solid dispersions, describe their formation and mechanism of stabilization, study their impact on dissolution and in vivo performance and briefly outline the future potentials.
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Affiliation(s)
- Swapnil Jayant Dengale
- Manipal College of Pharmaceutical Sciences, Manipal University, Manipal, Karnataka, India
| | - Holger Grohganz
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
| | - Thomas Rades
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark.
| | - Korbinian Löbmann
- Department of Pharmacy, University of Copenhagen, Copenhagen, Denmark
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43
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Adebisi AO, Kaialy W, Hussain T, Al-Hamidi H, Nokhodchi A, Conway BR, Asare-Addo K. An assessment of triboelectrification effects on co-ground solid dispersions of carbamazepine. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.02.008] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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44
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Huang Y, Zhang Q, Wang JR, Lin KL, Mei X. Amino acids as co-amorphous excipients for tackling the poor aqueous solubility of valsartan. Pharm Dev Technol 2016; 22:69-76. [DOI: 10.3109/10837450.2016.1163390] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Ying Huang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Qi Zhang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Jian-Rong Wang
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Kai-Lei Lin
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
| | - Xuefeng Mei
- Pharmaceutical Analytical & Solid-State Chemistry Research Center, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, Shanghai, China
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45
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Izutsu KI, Yoshida H, Shibata H, Goda Y. Amorphous–Amorphous Phase Separation of Freeze-Concentrated Protein and Amino Acid Excipients for Lyophilized Formulations. Chem Pharm Bull (Tokyo) 2016; 64:1674-1680. [DOI: 10.1248/cpb.c16-00442] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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46
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Zupančič Š, Baumgartner S, Lavrič Z, Petelin M, Kristl J. Local delivery of resveratrol using polycaprolactone nanofibers for treatment of periodontal disease. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.07.009] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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47
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Stärtzel P, Gieseler H, Gieseler M, Abdul-Fattah AM, Adler M, Mahler HC, Goldbach P. Freeze Drying of l -Arginine/Sucrose-Based Protein Formulations, Part I: Influence of Formulation and Arginine Counter Ion on the Critical Formulation Temperature, Product Performance and Protein Stability. J Pharm Sci 2015; 104:2345-58. [DOI: 10.1002/jps.24501] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2015] [Revised: 03/30/2015] [Accepted: 04/27/2015] [Indexed: 02/04/2023]
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48
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Kuehl PJ, Boyden T, Dobry DE, Doyle-Eisele M, Friesen DT, McDonald JD, Murri BG, Vodak DT, Lyon DK. Inhaled PYY(3-36) dry-powder formulation for appetite suppression. Drug Dev Ind Pharm 2015; 42:150-156. [PMID: 26006332 DOI: 10.3109/03639045.2015.1036067] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
OBJECTIVE Peptide YY3-36 [PYY(3-36)] has shown efficacy in appetite suppression when dosed by injection modalities (intraperitoneal (IP)/subcutaneous). Transitioning to needle-free delivery, towards inhalation, often utilizes systemic pharmacokinetics as a key endpoint to compare different delivery methods and doses. Systemic pharmacokinetics were evaluated for PYY3-36 when delivered by IP, subcutaneous, and inhalation, the systemic pharmacokinetics were then used to select doses in an appetite suppression pharmacodynamic study. METHODS Dry-powder formulations were manufactured by spray drying and delivered to mice via nose only inhalation. The systemic plasma, lung tissue, and bronchoalveolar lavage fluid pharmacokinetics of different inhalation doses of PYY(3-36) were compared to IP and subcutaneous efficacious doses. Based on these pharmacokinetic data, inhalation doses of 70:30 PYY(3-36):Dextran T10 were evaluated in a mouse model of appetite suppression and compared to IP and subcutaneous data. RESULTS Inhalation pharmacokinetic studies showed that plasma exposure was similar for a 2 × higher inhalation dose when compared to subcutaneous and IP delivery. Inhalation doses of 0.22 and 0.65 mg/kg were for efficacy studies. The results showed a dose-dependent (not dose proportional) decrease in food consumption over 4 h, which is similar to IP and subcutaneous delivery routes. CONCLUSIONS The pharmacokinetic and pharmacodynamics results substantiate the ability of pharmacokinetic data to inform pharmacodynamics dose selection for inhalation delivery of the peptide PYY(3-36). Additionally, engineered PYY(3-36):Dextran T10 particles delivered to the respiratory tract show promise as a non-invasive therapeutic for appetite suppression.
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Affiliation(s)
- Philip J Kuehl
- a Lovelace Respiratory Research Institute , Albuquerque , NM , USA
| | | | | | | | | | - Jacob D McDonald
- a Lovelace Respiratory Research Institute , Albuquerque , NM , USA
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49
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Triboelectrification and dissolution property enhancements of solid dispersions. Int J Pharm 2015; 485:306-16. [DOI: 10.1016/j.ijpharm.2015.03.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2015] [Revised: 03/04/2015] [Accepted: 03/09/2015] [Indexed: 11/20/2022]
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50
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Tu W, Wang Y, Li X, Zhang P, Tian Y, Jin S, Wang LM. Unveiling the dependence of glass transitions on mixing thermodynamics in miscible systems. Sci Rep 2015; 5:8500. [PMID: 25686751 PMCID: PMC4330544 DOI: 10.1038/srep08500] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Accepted: 01/22/2015] [Indexed: 11/18/2022] Open
Abstract
The dependence of the glass transition in mixtures on mixing thermodynamics is examined by focusing on enthalpy of mixing, ΔHmix with the change in sign (positive vs. negative) and magnitude (small vs. large). The effects of positive and negative ΔHmix are demonstrated based on two isomeric systems of o- vs. m- methoxymethylbenzene (MMB) and o- vs. m- dibromobenzene (DBB) with comparably small absolute ΔHmix. Two opposite composition dependences of the glass transition temperature, Tg, are observed with the MMB mixtures showing a distinct negative deviation from the ideal mixing rule and the DBB mixtures having a marginally positive deviation. The system of 1, 2- propanediamine (12PDA) vs. propylene glycol (PG) with large and negative ΔHmix is compared with the systems of small ΔHmix, and a considerably positive Tg shift is seen. Models involving the properties of pure components such as Tg, glass transition heat capacity increment, ΔCp, and density, ρ, do not interpret the observed Tg shifts in the systems. In contrast, a linear correlation is revealed between ΔHmix and maximum Tg shifts.
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Affiliation(s)
- Wenkang Tu
- State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei, 066004 China
| | - Yunxi Wang
- State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei, 066004 China
| | - Xin Li
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081 China
| | - Peng Zhang
- State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei, 066004 China
| | - Yongjun Tian
- State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei, 066004 China
| | - Shaohua Jin
- School of Materials Science and Engineering, Beijing Institute of Technology, Beijing, 100081 China
| | - Li-Min Wang
- State Key Lab of Metastable Materials Science and Technology, and College of Materials Science and Engineering, Yanshan University, Qinhuangdao, Hebei, 066004 China
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