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Kramarczyk D, Knapik-Kowalczuk J, Klimontko J, Kurek M, Jachowicz R, Paluch M. Tuning the Physical State of Aripiprazole by Mesoporous Silica. Mol Pharm 2024; 21:2315-2326. [PMID: 38644570 PMCID: PMC11080047 DOI: 10.1021/acs.molpharmaceut.3c01095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2023] [Revised: 04/01/2024] [Accepted: 04/02/2024] [Indexed: 04/23/2024]
Abstract
The main purpose of our studies is to demonstrate that commercially available mesoporous silica (MS) can be used to control the physical state of aripiprazole (ARP). The investigations performed utilizing differential scanning calorimetry and broadband dielectric spectroscopy reveal that silica can play different roles depending on its concentration in the system with amorphous ARP. At low MS content, it activates recrystallization of the active pharmaceutical ingredient and supports forming the III polymorphic form of ARP. At intermediate MS content (between ca. 27 and 65 wt %), MS works as a recrystallization inhibitor of ARP. At these concentrations, the formation of III polymorphic form is no longer favorable; therefore, it is possible to use this additive to obtain ARP in either IV or X polymorphic form. At the same time, employing MS in concentrations >65 wt % amorphous form of ARP with high physical stability can be obtained. Finally, regardless of the polymorphic form it crystallizes into, each composite is characterized by the same temperature dependence of relaxation times in the supercooled and glassy states.
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Affiliation(s)
- Daniel Kramarczyk
- Faculty
of Science and Technology, Institute of Physics, University of Silesia in Katowice, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Justyna Knapik-Kowalczuk
- Faculty
of Science and Technology, Institute of Physics, University of Silesia in Katowice, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Joanna Klimontko
- Faculty
of Science and Technology, Institute of Physics, University of Silesia in Katowice, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
| | - Mateusz Kurek
- Department
of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University, Medyczna 9, 30-688 Kraków, Poland
| | - Renata Jachowicz
- Department
of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University, Medyczna 9, 30-688 Kraków, Poland
| | - Marian Paluch
- Faculty
of Science and Technology, Institute of Physics, University of Silesia in Katowice, SMCEBI, 75 Pułku Piechoty 1a, 41-500 Chorzów, Poland
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2
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Lemercier A, Couvrat N, Cartigny Y, Sanselme M, Corvis Y, Espeau P, Coquerel G. Evidence of a New Crystalline Phase of Prednisolone Obtained from the Study of the Hydration-Dehydration Mechanisms of the Sesquihydrate. Pharmaceutics 2023; 15:1694. [PMID: 37376142 DOI: 10.3390/pharmaceutics15061694] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/26/2023] [Accepted: 06/02/2023] [Indexed: 06/29/2023] Open
Abstract
The dehydration of prednisolone sesquihydrate is studied and characterized by different physico-chemical analysis methods. The meticulous study of this dehydration led to the highlighting of a new solid form (form 3), metastable, never identified before. In a second step, the rehydration of anhydrous forms 1 and 2 of prednisolone is studied, in particular by Dynamic Vapor Sorption. It is then demonstrated that neither of the two forms is sensitive to humidity. By means of solid-gas equilibria, the sesquihydrate can only be obtainable from the isomorphic anhydrous form. Finally, a classification of the sesquihydrate is made, taking into account, in particular, the activation energy determined during dehydration.
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Affiliation(s)
| | - Nicolas Couvrat
- SMS, UR 3233, Université Rouen Normandie, 76000 Rouen, France
| | - Yohann Cartigny
- SMS, UR 3233, Université Rouen Normandie, 76000 Rouen, France
| | | | - Yohann Corvis
- CNRS, INSERM, UTCBS, Chemical and Biological Technologies for Health Group, Université Paris Cité, 75006 Paris, France
| | - Philippe Espeau
- CNRS, INSERM, UTCBS, Chemical and Biological Technologies for Health Group, Université Paris Cité, 75006 Paris, France
| | - Gérard Coquerel
- SMS, UR 3233, Université Rouen Normandie, 76000 Rouen, France
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3
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Stability of Inhaled Ciprofloxacin-Loaded Poly(2-ethyl-2-oxazoline) Nanoparticle Dry Powder Inhaler Formulation in High Stressed Conditions. Pharmaceuticals (Basel) 2022; 15:ph15101223. [PMID: 36297335 PMCID: PMC9610629 DOI: 10.3390/ph15101223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 09/27/2022] [Accepted: 09/29/2022] [Indexed: 11/06/2022] Open
Abstract
In this study, the stability of ciprofloxacin (CIP)-loaded poly(2-ethyl-2-oxazoline) (PEtOx) nanoparticles (NPs) was investigated at normal and high stressed conditions. The blank NPs were used to understand the intrinsic physicochemical properties of the polymer NPs under these storage conditions. The formulated NPs were prepared by a coassembly reaction and dried by lyophilization. The powder NPs were stored at controlled room temperature (25 °C) with normal relative humidity (RH) (43%) and high temperature (40 °C) and RH (75%). The stored samples were analyzed by determining the particle sizes, morphology, solid-state properties, thermal behavior, drug-polymer interactions, and aerosol performances over six months. The chemical stability of the formulations was determined by X-ray diffraction, attenuated total refection-Fourier transform infrared (ATR-FTIR), and high-performance liquid chromatography (HPLC) over six months under both conditions. The particle size of the blank PEtOx NPs significantly (p < 0.05) increased from 195.4 nm to 202.7 nm after 3 months at 40 °C/75% RH due to the moisture absorption from high RH; however, no significant increase was observed afterward. On the other hand, the sizes of CIP-loaded PEtOx NPs significantly (p < 0.05) reduced from 200.2 nm to 126.3 nm after 6 months at 40 °C/75% RH. In addition, the scanning electron microscopy (SEM) images revealed that the surfaces of CIP-loaded PEtOx NPs become smoother after 3 months of storage due to the decay of surface drugs compared to the freshly prepared NPs. However, transmission electron microscopy (TEM) images could not provide much information on drug decay from the nanoparticle’s surfaces. The fine particle fraction (FPF) of CIP-loaded PEtOx NPs dropped significantly (p < 0.05) after three months at 25 °C/43% RH and 40 °C/75% RH conditions. The reduced FPF of CIP-loaded PEtOx NPs occurred due to the drug decay from the polymeric surface and blank PEtOx NPs due to the aggregations of the NPs at high temperatures and RH. Although the aerosolization properties of the prepared CIP-loaded PEtOx NPs were reduced, all formulations were chemically stable in the experimental conditions.
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4
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Su Y, Shi D, Xiong B, Xu Y, Hu Q, Huang H, Yang J, Yu C. Solid-State Forms of Koumine Hydrochloride: Phase Transformations and the Crystal Structure and Properties of the Stable Form. ACS OMEGA 2022; 7:29692-29701. [PMID: 36061709 PMCID: PMC9434794 DOI: 10.1021/acsomega.2c02175] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/07/2022] [Accepted: 08/02/2022] [Indexed: 06/15/2023]
Abstract
To investigate the solid-state forms of koumine hydrochloride (KMY), solid form screening was performed, and one amorphous form and five crystalline forms (forms A, B, C, D, and E) were identified by powder X-ray diffraction. Form A was the dominant crystal product, and its crystal structure and packing pattern were determined by single-crystal X-ray diffraction. The crystals displayed an orthorhombic crystal system and symmetry of space group P212121 with Z' = 1. The amorphous form transformed to form A at 105-120 °C or 75% RH, while forms B, C, D, and E could only be intermediate phases and readily transformed to form A at room temperature. Therefore, the phase transformations of KMY solid-state forms were established. The properties of the amorphous form and form A were further elucidated by applying vibrational spectroscopy, moisture sorption analysis, and thermal analysis. Accordingly, form A, the KMY anhydrate, was found to be the thermodynamically stable form with low hygroscopicity under ambient conditions. These characteristics are crucial in the manufacture and storage of active pharmaceutical ingredients.
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Affiliation(s)
- Yanping Su
- School
of Pharmacy, Fujian Medical University, Fuzhou 350122, Fujian, People’s Republic of China
- Fujian
Key Laboratory of Drug Target Discovery and Structural and Functional
Research, School of Pharmacy, Fujian Medical
University, Fuzhou 350122, Fujian, People’s Republic of
China
| | - Dongmei Shi
- School
of Pharmacy, Fujian Medical University, Fuzhou 350122, Fujian, People’s Republic of China
| | - Bojun Xiong
- School
of Pharmacy, Fujian Medical University, Fuzhou 350122, Fujian, People’s Republic of China
| | - Ying Xu
- School
of Pharmacy, Fujian Medical University, Fuzhou 350122, Fujian, People’s Republic of China
| | - Qing Hu
- School
of Pharmacy, Fujian Medical University, Fuzhou 350122, Fujian, People’s Republic of China
- Fujian
Key Laboratory of Drug Target Discovery and Structural and Functional
Research, School of Pharmacy, Fujian Medical
University, Fuzhou 350122, Fujian, People’s Republic of
China
| | - Huihui Huang
- School
of Pharmacy, Fujian Medical University, Fuzhou 350122, Fujian, People’s Republic of China
- Fujian
Key Laboratory of Drug Target Discovery and Structural and Functional
Research, School of Pharmacy, Fujian Medical
University, Fuzhou 350122, Fujian, People’s Republic of
China
| | - Jian Yang
- School
of Pharmacy, Fujian Medical University, Fuzhou 350122, Fujian, People’s Republic of China
| | - Changxi Yu
- School
of Pharmacy, Fujian Medical University, Fuzhou 350122, Fujian, People’s Republic of China
- Fujian
Key Laboratory of Drug Target Discovery and Structural and Functional
Research, School of Pharmacy, Fujian Medical
University, Fuzhou 350122, Fujian, People’s Republic of
China
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5
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An update on solid-state characterization of the polyphenol pterostilbene. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103331] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Kargbo RB, Sherwood AM, Meisenheimer P, Lenoch K, Abebe S. Psilocybin: Characterization of the Metastable Zone Width (MSZW), Control of Anhydrous Polymorphs, and Particle Size Distribution (PSD). ACS OMEGA 2022; 7:5429-5436. [PMID: 35187358 PMCID: PMC8851641 DOI: 10.1021/acsomega.1c06708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Accepted: 01/17/2022] [Indexed: 06/14/2023]
Abstract
Psilocybin, a serotonergic agonist, was granted a "breakthrough therapy" status by the Food and Drug Administration for clinical trials involving major depressive disorder and treatment-resistant depression. The direct phosphorylation of psilocin to psilocybin that uses a fast crystallization associated with a kinetically controlled process resulted in a smaller particle size distribution. Herein, the measurement of the metastable zone width (MSZW) and nucleation induction enabled a thermodynamically controlled crystallization process, which leads to the formation of a crystal structure with stronger interactions, controlled particle size distribution (PSD), and improved impurity profile. Employing a high-resolution inline microscopy viewer allowed the real-time monitoring of the crystallization process and the measurement of the particle size. We also present a comprehensive study of the formation of polymorph B (trihydrate), polymorph A (anhydrate), and polymorph H (anhydrate) using water recrystallization, which indicates that the formation of polymorph B (trihydrate) is independent of the crystallization method. However, polymorphs A and H are dependent on the mode of drying: drying at room temperature under vacuum gives rise to mainly polymorph A, and when heated even at relatively low temperatures, a mixture of polymorphs A and H beings to form.
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Affiliation(s)
- Robert B. Kargbo
- Usona
Institute, 2780 Woods
Hollow Road, Madison, Wisconsin 53711, United States
| | | | - Poncho Meisenheimer
- Usona
Institute, 2780 Woods
Hollow Road, Madison, Wisconsin 53711, United States
| | - Kelsey Lenoch
- Usona
Institute, 2780 Woods
Hollow Road, Madison, Wisconsin 53711, United States
| | - Solomon Abebe
- Almac
Sciences, 20 Seagoe Industrial
Estate, Craigavon BT63
5QD, United Kingdom
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7
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Edkins K, Tweedy J, Fung S, Edkins RM. Steric influence on solvate formation – a comparison of resorcylic acid and two brominated derivatives. CrystEngComm 2022. [DOI: 10.1039/d1ce01592c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Unbalanced steric bulk can lead to increased solvate formation as shown in non-, mono- and dibrominated resorcylic acid.
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Affiliation(s)
- Katharina Edkins
- School of Health Sciences, The University of Manchester, Oxford Road, Manchester M13 9PT, UK
| | - Jane Tweedy
- School of Medicine, Pharmacy and Health, Durham University Queen's Campus, University Boulevard, Stockton-on-Tees TS17 6BH, UK
| | - Stephanie Fung
- School of Medicine, Pharmacy and Health, Durham University Queen's Campus, University Boulevard, Stockton-on-Tees TS17 6BH, UK
| | - Robert M. Edkins
- WestCHEM Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, UK
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8
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Sherman AM, Takanti N, Rong J, Simpson GJ. Nonlinear optical characterization of pharmaceutical formulations. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2021.116241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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9
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Applications of X-ray Powder Diffraction in Protein Crystallography and Drug Screening. CRYSTALS 2020. [DOI: 10.3390/cryst10020054] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Providing fundamental information on intra/intermolecular interactions and physicochemical properties, the three-dimensional structural characterization of biological macromolecules is of extreme importance towards understanding their mechanism of action. Among other methods, X-ray powder diffraction (XRPD) has proved its applicability and efficiency in numerous studies of different materials. Owing to recent methodological advances, this method is now considered a respectable tool for identifying macromolecular phase transitions, quantitative analysis, and determining structural modifications of samples ranging from small organics to full-length proteins. An overview of the XRPD applications and recent improvements related to the study of challenging macromolecules and peptides toward structure-based drug design is discussed. This review congregates recent studies in the field of drug formulation and delivery processes, as well as in polymorph identification and the effect of ligands and environmental conditions upon crystal characteristics. These studies further manifest the efficiency of protein XRPD for quick and accurate preliminary structural characterization.
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10
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Shetty N, Cipolla D, Park H, Zhou QT. Physical stability of dry powder inhaler formulations. Expert Opin Drug Deliv 2020; 17:77-96. [PMID: 31815554 PMCID: PMC6981243 DOI: 10.1080/17425247.2020.1702643] [Citation(s) in RCA: 86] [Impact Index Per Article: 21.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 12/05/2019] [Indexed: 12/29/2022]
Abstract
Introduction: Dry powder inhalers (DPIs) are popular for pulmonary drug delivery. Various techniques have been employed to produce inhalation drug particles and improve the delivery efficiency of DPI formulations. Physical stability of these DPI formulations is critical to ensure the delivery of a reproducible dose to the airways over the shelf-life.Areas covered: This review focuses on the impact of solid-state stability on aerosolization performance of DPI drug particles manufactured by powder production approaches and particle-engineering techniques. It also highlights the different analytical tools that can be used to characterize the physical instability originating from production and storage.Expert opinion: A majority of the DPI literature focuses on the effects of physico-chemical properties such as size, morphology, and density on aerosolization. While little has been reported on the physical stability, particularly the stability of engineered drug particles for use in DPIs. Literature data have shown that different particle-engineering methods and storage conditions may cause physical instability of dry powders for inhalation and can significantly change the aerosol performance. A systematic examination of physical instability mechanisms in DPI formulations is necessary during formulation development in order to select the optimum formulation with satisfactory stability. In addition, the use of appropriate characterization tools is critical to detect and understand physical instability during the development of DPI formulations.
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Affiliation(s)
- Nivedita Shetty
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - David Cipolla
- Insmed Incorporated, Bridgewater, NJ 08807-3365, USA
| | - Heejun Park
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
| | - Qi Tony Zhou
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, 575 Stadium Mall Drive, West Lafayette, IN 47907, USA
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11
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Dikundwar AG, Pal S, Chodon P, Narasimhamurthy R, Kameshwar P, Sundaram M, Bhutani H. Solid State Behavior of Impurities during “In-Process” Phase Purity Analysis of an API. Org Process Res Dev 2019. [DOI: 10.1021/acs.oprd.8b00334] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Amol G. Dikundwar
- Analytical R&D, Biocon Bristol-Myers Squibb R&D Centre (BBRC), Syngene International limited, Bangalore 560099, India
| | - Sharmistha Pal
- Pharmaceutics, Biocon Bristol-Myers Squibb Research and Development Center (BBRC), Syngene International Limited, Biocon Park, Bangalore 560099, India
| | - Pema Chodon
- Pharmaceutics, Biocon Bristol-Myers Squibb Research and Development Center (BBRC), Syngene International Limited, Biocon Park, Bangalore 560099, India
| | - Roopa Narasimhamurthy
- Analytical R&D, Biocon Bristol-Myers Squibb R&D Centre (BBRC), Syngene International limited, Bangalore 560099, India
| | - Prashant Kameshwar
- Pharmaceutics, Biocon Bristol-Myers Squibb Research and Development Center (BBRC), Syngene International Limited, Biocon Park, Bangalore 560099, India
| | - Meenakshi Sundaram
- Analytical R&D, Biocon Bristol-Myers Squibb R&D Centre (BBRC), Syngene International limited, Bangalore 560099, India
| | - Hemant Bhutani
- Analytical R&D, Biocon Bristol-Myers Squibb R&D Centre (BBRC), Bristol-Myers Squibb India Pvt. Ltd., Bangalore 560099, India
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12
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Characterization and Trypanocidal Activity of a Novel Pyranaphthoquinone. MOLECULES (BASEL, SWITZERLAND) 2017; 22:molecules22101631. [PMID: 28973960 PMCID: PMC6151607 DOI: 10.3390/molecules22101631] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 09/25/2017] [Accepted: 09/28/2017] [Indexed: 12/22/2022]
Abstract
Chagas disease is an endemic parasitic infection that occurs in 21 Latin American countries. New therapies for this disease are urgently needed, as the only two drugs available (nifurtimox and benznidazol) have high toxicity and variable efficacy in the disease’s chronic phase. Recently, a new chemical entity (NCE) named Pyranaphthoquinone (IVS320) was synthesized from lawsone. We report herein, a detailed study of the physicochemical properties and in vitro trypanocidal activity of IVS320. A series of assays were performed for characterization, where thermal, diffractometric, and morphological analysis were performed. In addition, the solubility, permeability, and hygroscopicity of IVS320 were determined. The results show that its poor solubility and low permeability may be due to its high degree of crystallinity (99.19%), which might require the use of proper techniques to increase the IVS320’s aqueous solubility and permeability. The trypanocidal activity study demonstrated that IVS320 is more potent than the reference drug benznidazole, with IC50/24 h of 1.49 ± 0.1 μM, which indicates that IVS320 has potential as a new drug candidate for the treatment of Chagas disease.
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13
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Schrode B, Bodak B, Riegler H, Zimmer A, Christian P, Werzer O. Solvent Vapor Annealing of Amorphous Carbamazepine Films for Fast Polymorph Screening and Dissolution Alteration. ACS OMEGA 2017; 2:5582-5590. [PMID: 28983522 PMCID: PMC5623942 DOI: 10.1021/acsomega.7b00783] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 08/24/2017] [Indexed: 06/07/2023]
Abstract
Solubility enhancement and thus higher bioavailability are of great importance and a constant challenge in pharmaceutical research whereby polymorph screening and selection is one of the most important tasks. A very promising approach for polymorph screening is solvent vapor annealing where a sample is exposed to an atmosphere saturated with molecules of a specific chemical/solvent. In this work, amorphous carbamazepine thin films were prepared by spin coating, and the transformation into crystalline forms under exposure to solvent vapors was investigated. Employing grazing incidence X-ray diffraction, four distinct carbamazepine polymorphs, a solvate, and hydrates could be identified, while optical microscopy showed mainly spherulitic morphologies. In vitro dissolution experiments revealed different carbamazepine release from the various thin-film samples containing distinct polymorphic compositions: heat treatment of amorphous samples at 80 °C results in an immediate release; samples exposed to EtOH vapors show a drug release about 5 times slower than this immediate one; and all the others had intermediate release profiles. Noteworthy, even the sample of slowest release has a manifold faster release compared to a standard powder sample demonstrating the capabilities of thin-film preparation for faster drug release in general. Despite the small number of samples in this screening experiment, the results clearly show how solvent vapor annealing can assist in identifying potential polymorphs and allows for estimating their impact on properties like bioavailability.
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Affiliation(s)
- Benedikt Schrode
- Institute
of Pharmaceutical Sciences, NAWI Graz, Department of Pharmaceutical
Technology, University Graz, Universtitätsplatz 1, 8010 Graz, Austria
- Institute
for Solid State Physics, NAWI Graz, Graz
University of Technology, Petersgasse 16, 8010 Graz, Austria
| | - Brigitta Bodak
- Institute
of Pharmaceutical Sciences, NAWI Graz, Department of Pharmaceutical
Technology, University Graz, Universtitätsplatz 1, 8010 Graz, Austria
| | - Hans Riegler
- Institute
of Pharmaceutical Sciences, NAWI Graz, Department of Pharmaceutical
Technology, University Graz, Universtitätsplatz 1, 8010 Graz, Austria
| | - Andreas Zimmer
- Institute
of Pharmaceutical Sciences, NAWI Graz, Department of Pharmaceutical
Technology, University Graz, Universtitätsplatz 1, 8010 Graz, Austria
| | - Paul Christian
- Institute
for Solid State Physics, NAWI Graz, Graz
University of Technology, Petersgasse 16, 8010 Graz, Austria
| | - Oliver Werzer
- Institute
of Pharmaceutical Sciences, NAWI Graz, Department of Pharmaceutical
Technology, University Graz, Universtitätsplatz 1, 8010 Graz, Austria
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14
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Johnston A, Bhardwaj-Miglani R, Gurung R, Vassileiou AD, Florence AJ, Johnston BF. Combined Chemoinformatics Approach to Solvent Library Design Using clusterSim and Multidimensional Scaling. J Chem Inf Model 2017; 57:1807-1815. [PMID: 28666389 DOI: 10.1021/acs.jcim.7b00038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Reported here is a rational approach for the selection of solvents intended for use in physical form screening based on a novel chemoinformatics analysis of solvent properties. A comprehensive assessment of eight clustering methods was carried out on a series of 94 solvents described by calculated molecular descriptors using the clusterSim package in R. The effectiveness of clustering methods was evaluated using a range of statistical measures as well as increasing efficiency of solid form discovery using a cluster-based solvent selection approach. Multidimensional scaling was used to illustrate cluster analysis on a two-dimensional solvent map. The map presented here is a valuable tool to aid efficient solvent selection in physical form screens. This tool is equally applicable to any scientific area which requires a solubility dependent decision on solvent choice.
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Affiliation(s)
- Andrea Johnston
- EPSRC Centre for Innovative Manufacturing in Continuous Manufacturing and Crystallisation and ‡EPSRC Doctoral Training Centre in Continuous Manufacturing and Crystallisation c/o Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde , Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, United Kingdom
| | - Rajni Bhardwaj-Miglani
- EPSRC Centre for Innovative Manufacturing in Continuous Manufacturing and Crystallisation and ‡EPSRC Doctoral Training Centre in Continuous Manufacturing and Crystallisation c/o Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde , Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, United Kingdom
| | - Rajesh Gurung
- EPSRC Centre for Innovative Manufacturing in Continuous Manufacturing and Crystallisation and ‡EPSRC Doctoral Training Centre in Continuous Manufacturing and Crystallisation c/o Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde , Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, United Kingdom
| | - Antony D Vassileiou
- EPSRC Centre for Innovative Manufacturing in Continuous Manufacturing and Crystallisation and ‡EPSRC Doctoral Training Centre in Continuous Manufacturing and Crystallisation c/o Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde , Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, United Kingdom
| | - Alastair J Florence
- EPSRC Centre for Innovative Manufacturing in Continuous Manufacturing and Crystallisation and ‡EPSRC Doctoral Training Centre in Continuous Manufacturing and Crystallisation c/o Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde , Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, United Kingdom
| | - Blair F Johnston
- EPSRC Centre for Innovative Manufacturing in Continuous Manufacturing and Crystallisation and ‡EPSRC Doctoral Training Centre in Continuous Manufacturing and Crystallisation c/o Strathclyde Institute of Pharmacy and Biomedical Sciences, University of Strathclyde , Technology and Innovation Centre, 99 George Street, Glasgow G1 1RD, United Kingdom
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15
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Crystal structures and physicochemical properties of amisulpride polymorphs. J Pharm Biomed Anal 2017; 140:252-257. [DOI: 10.1016/j.jpba.2017.03.030] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Revised: 03/08/2017] [Accepted: 03/15/2017] [Indexed: 11/19/2022]
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16
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Fu J, Dong X, Yin X, Yang C, Wang W, Du X, Zhang X, Ni J. A new polymorph of isoimperatorin. Pharm Dev Technol 2017; 23:849-856. [PMID: 27808578 DOI: 10.1080/10837450.2016.1257023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Isoimperatorin is a naturally occurring furocoumarin and is being considered as a potential chemoprevention. Only one crystal form of isoimperatorin (Form I) was reported during previous research so that an investigation of polymorphism of isoimperatorin was successfully undertaken. A new polymorph of isoimperatorin was discovered through comprehensive polymorph screening experiments. Their structures were elucidated by single-crystal structure analysis and extensively characterized by XRPD, DSC, FT-IR, and SEM. The results showed that the crystal structure and thermal properties of the new polymorph (Form II) were significantly different from those of Form I. Thermodynamic stability and phase transformation were also discussed in detail.
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Affiliation(s)
- Jing Fu
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Xiaoxv Dong
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Xinbing Yin
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Chunjing Yang
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Wenping Wang
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Xueying Du
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Xin Zhang
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
| | - Jian Ni
- a School of Chinese Materia Medica , Beijing University of Chinese Medicine , Beijing , China
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Fu J, Dong X, Yin X, Cao S, Yang C, He H, Ni J. Crystal structure and physicochemical characterization of 3β-hydroxyolea-12-en-28-oic acid-3,5,6-trimethylpyrazin-2-methyl ester. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.10.042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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18
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Zermiani T, Malheiros Â, da Silva RML, Stulzer HK, Bresolin TMB. Structural and physicochemical characterization and purity assessment of myrsinoic acids A and B, active compounds isolated from Rapanea ferruginea barks. ARAB J CHEM 2016. [DOI: 10.1016/j.arabjc.2015.06.032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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Faroongsarng D. Theoretical Aspects of Differential Scanning Calorimetry as a Tool for the Studies of Equilibrium Thermodynamics in Pharmaceutical Solid Phase Transitions. AAPS PharmSciTech 2016; 17:572-7. [PMID: 27091667 DOI: 10.1208/s12249-016-0530-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2016] [Accepted: 04/08/2016] [Indexed: 01/03/2023] Open
Abstract
Although differential scanning calorimetry (DSC) is a non-equilibrium technique, it has been used to gain energetic information that involves phase equilibria. DSC has been widely used to characterize the equilibrium melting parameters of small organic pharmaceutical compounds. An understanding of how DSC measures an equilibrium event could make for a better interpretation of the results. The aim of this mini-review was to provide a theoretical insight into the DSC measurement to obtain the equilibrium thermodynamics of a phase transition especially the melting process. It was demonstrated that the heat quantity obtained from the DSC thermogram (ΔH) was related to the thermodynamic enthalpy of the phase transition (ΔH (P) ) via: ΔH = ΔH (P) /(1 + K (- 1)) where K was the equilibrium constant. In melting, the solid and liquefied phases presumably coexist resulting in a null Gibbs free energy that produces an infinitely larger K. Thus, ΔH could be interpreted as ΔH (P). Issues of DSC investigations on melting behavior of crystalline solids including polymorphism, degradation impurity due to heating in situ, and eutectic melting were discussed. In addition, DSC has been a tool for determination of the impurity based on an ideal solution of the melt that is one of the official methods used to establish the reference standard.
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Santos OMM, Freitas JTJ, Cazedey ECL, de Araújo MB, Doriguetto AC. Structure, Solubility and Stability of Orbifloxacin Crystal Forms: Hemihydrate versus Anhydrate. Molecules 2016; 21:328. [PMID: 27005603 PMCID: PMC6273335 DOI: 10.3390/molecules21030328] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2016] [Revised: 02/05/2016] [Accepted: 02/23/2016] [Indexed: 01/27/2023] Open
Abstract
Orbifloxacin (ORBI) is a widely used antimicrobial drug of the fluoroquinolone class. In the official pharmaceutical compendia the existence of polymorphism in this active pharmaceutical ingredient (API) is reported. No crystal structure has been reported for this API and as described in the literature, its solubility is very controversial. Considering that different solid forms of the same API may have different physicochemical properties, these different solubilities may have resulted from analyses inadvertently carried out on different polymorphs. The solubility is the most critical property because it can affect the bioavailability and may compromise the quality of a drug product. The crystalline structure of ORBI determined by SCXRD is reported here for the first time. The structural analysis reveals that the ORBI molecule is zwitterionic and hemihydrated. ORBI hemihydrated form was characterized by the following techniques: TG/DTA, FTIR-ATR, and PXRD. A second crystalline ORBI form is also reported: the ORBI anhydrous form was obtained by heating the hemihydrate. These ORBI solid forms were isomorphous, since no significant change in unit cell and space group symmetry were observed. The solid-state phase transformation between these forms is discussed and the equilibrium solubility data were examined in order to check the impact of the differences observed in their crystalline structures.
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Affiliation(s)
- Olimpia Maria Martins Santos
- Institute of Chemistry, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, Alfenas-MG 37130-000, Brazil.
- Faculty of Pharmaceutical Sciences, Federal University of Alfenas; Rua Gabriel Monteiro da Silva, 700, Alfenas-MG 37130-000, Brazil.
| | - Jennifer Tavares Jacon Freitas
- Faculty of Pharmaceutical Sciences, Federal University of Alfenas; Rua Gabriel Monteiro da Silva, 700, Alfenas-MG 37130-000, Brazil.
| | - Edith Cristina Laignier Cazedey
- Faculty of Pharmaceutical Sciences, Federal University of Alfenas; Rua Gabriel Monteiro da Silva, 700, Alfenas-MG 37130-000, Brazil.
- Faculty of Pharmacy, Federal University of Bahia, Campus Ondina, Rua Barão de Jeremoabo, 147, Ondina, Salvador-BA 40170-115, Brazil.
| | - Magali Benjamim de Araújo
- Faculty of Pharmaceutical Sciences, Federal University of Alfenas; Rua Gabriel Monteiro da Silva, 700, Alfenas-MG 37130-000, Brazil.
| | - Antonio Carlos Doriguetto
- Institute of Chemistry, Federal University of Alfenas, Rua Gabriel Monteiro da Silva, 700, Alfenas-MG 37130-000, Brazil.
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Paudel A, Raijada D, Rantanen J. Raman spectroscopy in pharmaceutical product design. Adv Drug Deliv Rev 2015; 89:3-20. [PMID: 25868453 DOI: 10.1016/j.addr.2015.04.003] [Citation(s) in RCA: 168] [Impact Index Per Article: 18.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2014] [Revised: 03/15/2015] [Accepted: 04/01/2015] [Indexed: 12/20/2022]
Abstract
Almost 100 years after the discovery of the Raman scattering phenomenon, related analytical techniques have emerged as important tools in biomedical sciences. Raman spectroscopy and microscopy are frontier, non-invasive analytical techniques amenable for diverse biomedical areas, ranging from molecular-based drug discovery, design of innovative drug delivery systems and quality control of finished products. This review presents concise accounts of various conventional and emerging Raman instrumentations including associated hyphenated tools of pharmaceutical interest. Moreover, relevant application cases of Raman spectroscopy in early and late phase pharmaceutical development, process analysis and micro-structural analysis of drug delivery systems are introduced. Finally, potential areas of future advancement and application of Raman spectroscopic techniques are discussed.
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Qiu JB, Li G, Sheng Y, Zhu MR. Quantification of febuxostat polymorphs using powder X-ray diffraction technique. J Pharm Biomed Anal 2015; 107:298-303. [PMID: 25636167 DOI: 10.1016/j.jpba.2015.01.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2014] [Revised: 01/03/2015] [Accepted: 01/05/2015] [Indexed: 11/30/2022]
Abstract
Febuxostat is a pharmaceutical compound with more than 20 polymorphs of which form A is most widely used and usually exists in a mixed polymorphic form with form G. In the present study, a quantification method for polymorphic form A and form G of febuxostat (FEB) has been developed using powder X-ray diffraction (PXRD). Prior to development of a quantification method, pure polymorphic form A and form G are characterized. A continuous scan with a scan rate of 3° min(-1) over an angular range of 3-40° 2θ is applied for the construction of the calibration curve using the characteristic peaks of form A at 12.78° 2θ (I/I0100%) and form G at 11.72° 2θ (I/I0100%). The linear regression analysis data for the calibration plots shows good linear relationship with R(2)=0.9985 with respect to peak area in the concentration range 10-60 wt.%. The method is validated for precision, recovery and ruggedness. The limits of detection and quantitation are 1.5% and 4.6%, respectively. The obtained results prove that the method is repeatable, sensitive and accurate. The proposed developed PXRD method can be applied for the quantitative analysis of mixtures of febuxostat polymorphs (forms A and G).
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Affiliation(s)
- Jing-bo Qiu
- Testing & Analysis Center, Nanjing Normal University, No. 1, Wenyuan Road, Qixia District, Nanjing 210023, Jiangsu Province, PR China
| | - Gang Li
- Testing & Analysis Center, Nanjing Normal University, No. 1, Wenyuan Road, Qixia District, Nanjing 210023, Jiangsu Province, PR China.
| | - Yue Sheng
- Testing & Analysis Center, Nanjing Normal University, No. 1, Wenyuan Road, Qixia District, Nanjing 210023, Jiangsu Province, PR China
| | - Mu-rong Zhu
- Testing & Analysis Center, Nanjing Normal University, No. 1, Wenyuan Road, Qixia District, Nanjing 210023, Jiangsu Province, PR China
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Láng P, Várkonyi E, Ulrich J, Szabó-Révész P, Aigner Z. Analysis of the polymorph changes of a drug candidate. J Pharm Biomed Anal 2015; 102:229-35. [DOI: 10.1016/j.jpba.2014.09.020] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 09/04/2014] [Accepted: 09/10/2014] [Indexed: 11/16/2022]
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