1
|
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.
Collapse
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
| |
Collapse
|
2
|
DeBoyace K, Bookwala M, Zhou D, Buckner IS, Wildfong PL. Understanding the Influence of API Conformations on Amorphous Dispersion Formation Potential Predictions using the R3 m Molecular Descriptor. Mol Pharm 2024; 21:770-780. [PMID: 38181202 PMCID: PMC10848250 DOI: 10.1021/acs.molpharmaceut.3c00909] [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: 09/28/2023] [Revised: 12/15/2023] [Accepted: 12/20/2023] [Indexed: 01/07/2024]
Abstract
The R3m molecular descriptor (R-GETAWAY third-order autocorrelation index weighted by the atomic mass) has previously been shown to encode molecular attributes that appear to be physically and chemically relevant to grouping diverse active pharmaceutical ingredients (API) according to their potential to form persistent amorphous solid dispersions (ASDs) with polyvinylpyrrolidone-vinyl acetate copolymer (PVPVA). The initial R3m dispersibility model was built by using a single three-dimensional (3D) conformation for each drug molecule. Since molecules in the amorphous state will adopt a distribution of conformations, molecular dynamics simulations were performed to sample conformations that are probable in the amorphous form, which resulted in a distribution of R3m values for each API. Although different conformations displayed R3m values that differed by as much as 0.4, the median of each R3m distribution and the value predicted from the single 3D conformation were very similar for most structures studied. The variability in R3m resulting from the distribution of conformations was incorporated into a logistic regression model for the prediction of ASD formation in PVPVA, which resulted in a refinement of the classification boundary relative to the model that only incorporated a single conformation of each API.
Collapse
Affiliation(s)
- Kevin DeBoyace
- School
of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Ave, Pittsburgh, Pennsylvania 15282, United States
- Pfizer
Worldwide R&D, Eastern
Point Road, Groton, Connecticut 06340, United States
| | - Mustafa Bookwala
- School
of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Ave, Pittsburgh, Pennsylvania 15282, United States
| | - Deliang Zhou
- Drug
Product Development, Research and Development, AbbVie, 1 North Waukegan
Road, North Chicago, Illinois 60064, United States
- Small
Molecules Drug Product Development, BeiGene
USA, Inc., 55 Cambridge Parkway, Cambridge, Massachusetts 02142, United States
| | - Ira S. Buckner
- School
of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Ave, Pittsburgh, Pennsylvania 15282, United States
| | - Peter L.D. Wildfong
- School
of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Ave, Pittsburgh, Pennsylvania 15282, United States
| |
Collapse
|
3
|
Minecka A, Tarnacka M, Jurkiewicz K, Żakowiecki D, Kamiński K, Kamińska E. Mesoporous Matrices as a Promising New Generation of Carriers for Multipolymorphic Active Pharmaceutical Ingredient Aripiprazole. Mol Pharm 2023; 20:5655-5667. [PMID: 37756382 PMCID: PMC10630940 DOI: 10.1021/acs.molpharmaceut.3c00524] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Revised: 09/09/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023]
Abstract
The enhancement of the properties (i.e., poor solubility and low bioavailability) of currently available active pharmaceutical ingredients (APIs) is one of the major goals of modern pharmaceutical sciences. Among different strategies, a novel and innovative route to reach this milestone seems to be the application of nanotechnology, especially the incorporation of APIs into porous membranes composed of pores of nanometric size and made of nontoxic materials. Therefore, in this work, taking the antipsychotic API aripiprazole (APZ) infiltrated into various types of mesoporous matrices (anodic aluminum oxide, native, and silanized silica) characterized by similar pore diameters (d = 8-10 nm) as an example, we showed the advantage of incorporated systems in comparison to the bulk substance considering the crystallization kinetics, molecular dynamics, and physical stability. Calorimetric investigations supported by the temperature-dependent X-ray diffraction measurements revealed that in the bulk system the recrystallization of polymorph III, which next is converted to the mixture of forms IV and I, is visible, while in the case of confined samples polymorphic forms I and III of APZ are produced upon heating of the molten API with different rates. Importantly, the two-step crystallization observed in thermograms obtained for the API infiltrated into native silica templates may suggest crystal formation by the interfacial and core molecules. Furthermore, dielectric studies enabled us to conclude that there is no trace of crystallization of spatially restricted API during one month of storage at T = 298 K. Finally, we found that in contrast to the crystalline and amorphous bulk samples, all examined confined systems show a logarithmic increase in API dissolution over time (very close to a prolonged release effect) without any sign of precipitation. Our data demonstrated that mesoporous matrices appear to be interesting candidates as carriers for unstable amorphous APIs, like APZ. In addition to protecting them against crystallization, they can provide the desired prolonged release effect, which may increase the drug concentration in the blood (resulting in higher bioavailability). We believe that the "nanostructirization" in terms of the application of porous membranes as a novel generation of drug carriers might open unique perspectives in the further development of drugs characterized by prolonged release.
Collapse
Affiliation(s)
- Aldona Minecka
- Department
of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences
in Sosnowiec, Medical University of Silesia
in Katowice, 41-200 Sosnowiec, Poland
| | - Magdalena Tarnacka
- A.
Chelkowski Institute of Physics, University
of Silesia in Katowice, 41-500 Chorzow, Poland
| | - Karolina Jurkiewicz
- A.
Chelkowski Institute of Physics, University
of Silesia in Katowice, 41-500 Chorzow, Poland
| | - Daniel Żakowiecki
- Chemische
Fabrik Budenheim KG, Rheinstrasse 27, 55257 Budenheim, Germany
| | - Kamil Kamiński
- A.
Chelkowski Institute of Physics, University
of Silesia in Katowice, 41-500 Chorzow, Poland
| | - Ewa Kamińska
- Department
of Pharmacognosy and Phytochemistry, Faculty of Pharmaceutical Sciences
in Sosnowiec, Medical University of Silesia
in Katowice, 41-200 Sosnowiec, Poland
| |
Collapse
|
4
|
Gao Z, Cen Z, Lin J, Li Z, Fang L, Gao Z, Han D, Gong J. Synergistic Control of Nonlinear Growth Kinetics and Nucleation Kinetics in the Concomitant Crystallization of Aripiprazole as Reflected by the Ostwald Ratio. Ind Eng Chem Res 2022. [DOI: 10.1021/acs.iecr.2c03731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Zhenjie Gao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin300072, China
| | - Zhenkai Cen
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin300072, China
| | - Jiawei Lin
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin300072, China
| | - Zhixu Li
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin300072, China
| | - Lan Fang
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin300072, China
| | - Zhenguo Gao
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin300072, China
| | - Dandan Han
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin300072, China
| | - Junbo Gong
- State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin300072, China
- The Co-Innovation Center of Chemistry and Chemical Engineering of Tianjin, Tianjin300072, China
| |
Collapse
|
5
|
Fang L, Gao Z, Gao Z, Huang W, Wan X, Rohani S, Gong J. Controlled Crystallization of Metastable Polymorphic Pharmaceutical: Comparative Study of Batchwise and Continuous Tubular Crystallizers. Chem Eng Sci 2022. [DOI: 10.1016/j.ces.2022.118277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
6
|
Konovalova IS, Shaposhnyk AM, Baumer VN, Chalyk BA, Shishkina SV. Polymorphic transition due to grinding: the case of 3-[1-(tert-butoxycarbonyl)azetidin-3-yl]-1,2-oxazole-4-carboxylic acid. ACTA CRYSTALLOGRAPHICA SECTION B, STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS 2022; 78:510-519. [PMID: 35702968 DOI: 10.1107/s2052520622003900] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Accepted: 04/10/2022] [Indexed: 06/15/2023]
Abstract
A polymorphic transition as a result of grinding was found for 3-[1-(tert-butoxycarbonyl)azetidin-3-yl]-1,2-oxazole-4-carboxylic acid. The thorough study of polymorphic structures before and after crystal structure transformation has revealed some pre-conditions for a polymorphic transition and regularities of changes in molecular and crystal structure. In metastable polymorph 1a, the conformationally flexible molecule adopts a conformation with the higher energy and forms a less preferable linear supramolecular synthon. Additional energy imparted to a crystal structure during the grinding process proved to be enough to overcome low energy barriers for the nitrogen inversion and rotation of the oxazole ring around the sp3-sp2 single bond. As a result, polymorph 1b with a molecule adopting conformation with lower energy and forming a more preferable centrosymmetric supramolecular synthon was obtained. The study of pairwise interaction energies in the two polymorphs has shown that metastable polymorph 1a is organized by molecular building units and has a columnar-layered structure. A centrosymmetric dimer should be recognized as a complex building unit in more stable polymorph 1b, which has a layered structure.
Collapse
Affiliation(s)
- Irina S Konovalova
- SSI `Institute for Single Crystals' NAS of Ukraine, 60 Nauky ave., Kharkiv, 61001, Ukraine
| | - Anna M Shaposhnyk
- SSI `Institute for Single Crystals' NAS of Ukraine, 60 Nauky ave., Kharkiv, 61001, Ukraine
| | - Vyacheslav N Baumer
- SSI `Institute for Single Crystals' NAS of Ukraine, 60 Nauky ave., Kharkiv, 61001, Ukraine
| | | | - Svitlana V Shishkina
- SSI `Institute for Single Crystals' NAS of Ukraine, 60 Nauky ave., Kharkiv, 61001, Ukraine
| |
Collapse
|
7
|
Łyszczarz E, Brniak W, Szafraniec-Szczęsny J, Majka TM, Majda D, Zych M, Pielichowski K, Jachowicz R. The Impact of the Preparation Method on the Properties of Orodispersible Films with Aripiprazole: Electrospinning vs. Casting and 3D Printing Methods. Pharmaceutics 2021; 13:1122. [PMID: 34452083 PMCID: PMC8401512 DOI: 10.3390/pharmaceutics13081122] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Revised: 07/15/2021] [Accepted: 07/20/2021] [Indexed: 12/17/2022] Open
Abstract
Orodispersible films (ODFs) address the needs of pediatric and geriatric patients and people with swallowing difficulties due to fast disintegration in the mouth. Typically, they are obtained using the solvent casting method, but other techniques such as 3D printing and electrospinning have already been investigated. The decision on the manufacturing method is of crucial importance because it affects film properties. This study aimed to compare electrospun ODFs containing aripiprazole and polyvinyl alcohol with films prepared using casting and 3D printing methods. Characterization of films included DSC and XRD analysis, microscopic analysis, the assessment of mechanical parameters, disintegration, and dissolution tests. Simplified stability studies were performed after one month of storage. All prepared films met acceptance criteria for mechanical properties. Electrospun ODFs disintegrated in 1.0 s, which was much less than in the case of other films. Stability studies have shown the sensitivity of electrospun films to the storage condition resulting in partial recrystallization of ARP. These changes negatively affected the dissolution rate, but mechanical properties and disintegration time remained at a desirable level. The results demonstrated that electrospun fibers are promising solutions that can be used in the future for the treatment of patients with swallowing problems.
Collapse
Affiliation(s)
- Ewelina Łyszczarz
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (E.Ł.); (J.S.-S.); (R.J.)
| | - Witold Brniak
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (E.Ł.); (J.S.-S.); (R.J.)
| | - Joanna Szafraniec-Szczęsny
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (E.Ł.); (J.S.-S.); (R.J.)
| | - Tomasz M. Majka
- Department of Chemistry and Technology of Polymers, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland; (T.M.M.); (K.P.)
| | - Dorota Majda
- Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Cracow, Poland; (D.M.); (M.Z.)
| | - Marta Zych
- Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Cracow, Poland; (D.M.); (M.Z.)
| | - Krzysztof Pielichowski
- Department of Chemistry and Technology of Polymers, Faculty of Chemical Engineering and Technology, Cracow University of Technology, Warszawska 24, 31-155 Cracow, Poland; (T.M.M.); (K.P.)
| | - Renata Jachowicz
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Cracow, Poland; (E.Ł.); (J.S.-S.); (R.J.)
| |
Collapse
|
8
|
Sathya U, Nirmal Ram JS, Gomathi S, Ramu S, Jegan Jennifer S, Ibrahim AR. 4-(2,3-Dichlorophenyl)piperazin-1-ium picrate. IUCRDATA 2021; 6:x210379. [PMID: 36339106 PMCID: PMC9462331 DOI: 10.1107/s2414314621003795] [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: 03/19/2021] [Accepted: 04/08/2021] [Indexed: 11/12/2022] Open
Abstract
The title compound, C6H2N3O7−·C10H13Cl2N2+, crystallizes with one 1-(2,3-dichlorophenyl)piperazine cation and one picrate anion in the asymmetric unit. In the crystal structure, the cations and anions are interconnected via several N—H⋯O and C—H⋯O hydrogen bonds. The title compound, C6H2N3O7−·C10H13Cl2N2+, crystallizes with one 1-(2,3-dichloro-phenyl)piperazine (DP) cation and one picrate (PA) anion in the asymmetric unit. In the crystal structure, the DP cation and PA anion are interconnected via several N—H⋯O and C—H⋯O hydrogen bonds. The DP cation and PA anion are further connected through C—Cl⋯π [3.8201 (4), 3.7785 (4) Å] and N—O⋯π [3.7814 (4) Å] interactions. The DP cations are further interconnected via a weak intermolecular Cl⋯Cl [3.2613 (4) Å] halogen–halogen interaction. The combination of these supramolecular interactions leads to a herringbone like supramolecular architecture.![]()
Collapse
|
9
|
Liu W, Ma R, Liang F, Duan C, Zhang G, Chen Y, Hao C. New Cocrystals of Antipsychotic Drug Aripiprazole: Decreasing the Dissolution through Cocrystallization. Molecules 2021; 26:molecules26092414. [PMID: 33919175 PMCID: PMC8122301 DOI: 10.3390/molecules26092414] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2021] [Revised: 04/15/2021] [Accepted: 04/20/2021] [Indexed: 11/17/2022] Open
Abstract
Cocrystallization is an important route to tuning the solubility in drugs development, including improving and reducing. Five cocrystals of aripiprazole (ARI) with resveratrol (RSV) and kaempferol (KAE), ARI-RSV, ARI2-RSV1·MeOH, ARI-KAE, ARI-KAE·EtOH, ARI-KAE·IPA, were synthesized and characterized. The single crystal of ARI2-RSV1·MeOH, ARI-KAE·EtOH, and ARI-KAE·IPA were analyzed by single crystal X-ray diffraction (SCXRD). The SCXRD showed multiple intermolecular interactions between API and the coformers, including hydrogen bond, halogen bond, and π-π interactions. Dissolution rate of the two nonsolvate ARI-RSV and ARI-KAE cocrystals were investigated through powder dissolution experiment in pH = 4.0 acetate buffer and pH = 6.8 phosphate buffer. The result showed that RSV could reduce the dissolution rate and solubility of ARI in both medium through cocrystallization. However, KAE improved the dissolution rate and solubility of ARI in pH = 4.0 medium, on the contrary, the two solubility indicators of ARI were both reduced for ARI-KAE cocrystal.
Collapse
Affiliation(s)
- Wenwen Liu
- School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (W.L.); (R.M.); (F.L.); (C.D.); (G.Z.)
| | - Ru Ma
- School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (W.L.); (R.M.); (F.L.); (C.D.); (G.Z.)
| | - Feifei Liang
- School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (W.L.); (R.M.); (F.L.); (C.D.); (G.Z.)
| | - Chenxin Duan
- School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (W.L.); (R.M.); (F.L.); (C.D.); (G.Z.)
| | - Guisen Zhang
- School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (W.L.); (R.M.); (F.L.); (C.D.); (G.Z.)
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Yin Chen
- School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (W.L.); (R.M.); (F.L.); (C.D.); (G.Z.)
- Correspondence: (Y.C.); (C.H.); Tel.: +86-27-87792235 (C.H.)
| | - Chao Hao
- School of Pharmacy, Jiangsu Ocean University, Lianyungang 222005, China; (W.L.); (R.M.); (F.L.); (C.D.); (G.Z.)
- Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China
- Correspondence: (Y.C.); (C.H.); Tel.: +86-27-87792235 (C.H.)
| |
Collapse
|
10
|
Hamideh A, Rahman Z, Dharani S, Khuroo T, Mohamed EM, Nutan MTH, Reddy IK, Khan MA. Preparation and characterization of dicarboxylic acids salt of aripiprazole with enhanced physicochemical properties. Pharm Dev Technol 2021; 26:455-463. [PMID: 33653226 DOI: 10.1080/10837450.2021.1888978] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The focus of present work was to prepare salt of aripiprazole (APZ) with dicarboxylic acids to improve physicochemical properties the drug. Dicarboxylic acids used in the study were malonic acid, maleic acid and succinic acid. The salts were prepared with solubilization-crystallization method. The salts were characterized for pH-solubility, dissolution, and stabilities. The Fourier infrared spectroscopy, X-ray powder diffraction, differential scanning calorimetry and near infrared chemical imaging indicated formation of new solid phase. pH-solubility profiles of the salts were similar to the drug except higher solubility were observed in the salts at all tested pH. The highest solubility was observed for APZ-Malonate salt among all the prepared salts. The solubility curve was inverted 'V' shape for APZ-maleate and APZ-succinate while it was inverted 'U' shape for APZ-malonate. The water solubility of APZ, APZ-malonate, APZ-maleate and APZ-succinate were 0.07 ± 0.02, 3503.9 ± 37.4, 269.3 ± 6.9 and 729.4 ± 9.4 µg/mL, respectively. The dissolution was 2.9 ± 0.4, 18.4 ± 3.9, 19.5 ± 1.4 and 36.6 ± 4.0% in 45 min for APZ, APZ-maleate, APZ-malonate, and APZ-succinate. The stabilities of the salts were similar to the drug. Thus, salts improved the physicochemical properties of the drug, and have similar stability profiles as that of APZ.
Collapse
Affiliation(s)
- Afrooz Hamideh
- Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Texas A&M University, College Station, TX, USA
| | - Ziyaur Rahman
- Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Texas A&M University, College Station, TX, USA
| | - Sathish Dharani
- Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Texas A&M University, College Station, TX, USA
| | - Tahir Khuroo
- Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Texas A&M University, College Station, TX, USA
| | - Eman M Mohamed
- Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Texas A&M University, College Station, TX, USA.,Department of Pharmaceutics, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Mohammad T H Nutan
- Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Texas A&M University, Kingsville, TX, USA
| | - Indra K Reddy
- Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Texas A&M University, College Station, TX, USA
| | - Mansoor A Khan
- Irma Lerma Rangel College of Pharmacy, Texas A&M Health Science Center, Texas A&M University, College Station, TX, USA
| |
Collapse
|
11
|
Afrooz H, Mohamed EM, Barakh Ali SF, Dharani S, Nutan MTH, Khan MA, Rahman Z. Salt Engineering of Aripiprazole with Polycarboxylic Acids to Improve Physicochemical Properties. AAPS PharmSciTech 2021; 22:31. [PMID: 33405012 DOI: 10.1208/s12249-020-01875-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Accepted: 11/05/2020] [Indexed: 11/30/2022] Open
Abstract
Aripiprazole (APZ) has poor physicochemical properties and bitter taste. The current study aimed to prepare salts of APZ with polycarboxylic acids (citric, malic, and tartaric acids) to improve physicochemical properties and impart sour taste to the drug. The salts were prepared by solubilization-crystallization method, and characterized by electron microscopic, spectroscopic, diffractometry, and thermal methods. The salts were assessed for pH solubility, pH-stability, dissolution, and solid-state stability. Fourier transformed infrared, X-ray powder diffraction, and differential scanning calorimetry data indicated formation of new solid phases. APZ and the salts exhibited pH-dependent solubility. The pH solubility curve shape was inverted "V," inverted "W," and inverted "U" for APZ, APZ-Citrate, and APZ-Malate and APZ-Tartrate, respectively. Compared to APZ, the solubility of salts at pH 4, 5, and 6 was 3.6-7.1, 23.9-31.5, and 143.4-373.3 folds of APZ. Increase in solubility in water by citrate, malate, and tartrate salts was 5562.8, 21,284.7, and 22,846.7 folds of APZ. The salt formation also leads to an increase in rate and extent of dissolution. The dissolution extent was 3.5 ± 0.5, 71.3 ± 1.2, 80.1 ± 6.2, and 86.1 ± 1.1% for APZ, APZ-Citrate, APZ-Malate, and APZ-Tartrate, respectively. Liquid and solid-state stabilities of the salts were comparable to APZ. In conclusion, salts of APZ with polycarboxylic acids improved solubility, and dissolution, and impart sour taste, which may improve palatability of the drug.
Collapse
|
12
|
Sacchi P, Reutzel-Edens SM, Cruz-Cabeza AJ. The unexpected discovery of the ninth polymorph of tolfenamic acid. CrystEngComm 2021. [DOI: 10.1039/d1ce00343g] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new polymorph of tolfenamic acid, form IX, has been crystallised from a simple cooling crystallisation experiment raising the question as to why this polymorph had never been reported before.
Collapse
Affiliation(s)
- Pietro Sacchi
- Department of Chemical Engineering and Analytical Science
- School of Engineering
- University of Manchester
- UK
| | - Susan M. Reutzel-Edens
- Synthetic Molecule Design & Development
- Eli Lilly and Company
- Indianapolis
- USA
- Cambridge Crystallographic Data Centre
| | - Aurora J. Cruz-Cabeza
- Department of Chemical Engineering and Analytical Science
- School of Engineering
- University of Manchester
- UK
| |
Collapse
|
13
|
Serezhkin VN, Savchenkov AV. Advancing the use of Voronoi–Dirichlet polyhedra to describe interactions in organic molecular crystal structures by the example of galunisertib polymorphs. CrystEngComm 2021. [DOI: 10.1039/d0ce01535k] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The universal approach for studying structure/properties relationships shows that every polymorph of galunisertib is characterized with unique noncovalent interactions.
Collapse
|
14
|
Knapik-Kowalczuk J, Rams-Baron M, Paluch M. Current research trends in dielectric relaxation studies of amorphous pharmaceuticals: Physical stability, tautomerism, and the role of hydrogen bonding. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116097] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
|
15
|
Chung S, Kim J, Ban E, Yun J, Park B, Kim A. Solution-Mediated Phase Transformation of Aripiprazole: Negating the Effect of Crystalline Forms on Dissolution and Oral Pharmacokinetics. J Pharm Sci 2020; 109:3668-3677. [PMID: 33007279 DOI: 10.1016/j.xphs.2020.09.031] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2020] [Revised: 08/26/2020] [Accepted: 09/21/2020] [Indexed: 11/17/2022]
Abstract
We aimed to evaluate the effect of crystalline forms of aripiprazole, an antipsychotic drug for schizophrenia, on the dissolution rates and oral pharmacokinetics. Solubility, intrinsic dissolution rates, and tablet dissolution rates of the monohydrate (MA) and the anhydrous form (AA) were measured in various aqueous media while monitoring the phase transformation by ATR-FTIR. And their oral pharmacokinetics in dogs were compared. The intrinsic dissolution rate of MA was lower compared to AA, confirming its thermodynamic stability relative to AA in water. Phase transformations during the solubility measurement were media-dependent: In simulated gastric fluid, both AA and MA changed to HCl salt form, whereas AA and HCl salt form transformed to MA in simulated intestinal fluid. In vitro dissolution rates and dog oral pharmacokinetics of AA and MA tablets were similar. The results suggest that the solution-mediated transformation to HCl salt or MA negates the effect of different crystalline forms on dissolution rates in vivo and, consequently, on oral pharmacokinetics. We emphasize the importance of the dissolution tests employing various bio-relevant media for better prediction of in vivo performance and the selection of a solid form for development.
Collapse
Affiliation(s)
- Sungyoon Chung
- College of Pharmacy, CHA University, Seongnam 13844, Korea
| | - Jongyeob Kim
- College of Pharmacy, CHA University, Seongnam 13844, Korea
| | - Eunmi Ban
- College of Pharmacy, CHA University, Seongnam 13844, Korea
| | - Jungmin Yun
- College of Pharmacy, CHA University, Seongnam 13844, Korea
| | - Boosung Park
- College of Pharmacy, CHA University, Seongnam 13844, Korea
| | - Aeri Kim
- College of Pharmacy, CHA University, Seongnam 13844, Korea.
| |
Collapse
|
16
|
Braun DE, Gelbrich T, Kahlenberg V, Griesser UJ. The Eight Hydrates of Strychnine Sulfate. CRYSTAL GROWTH & DESIGN 2020; 20:6069-6083. [PMID: 32913424 PMCID: PMC7472434 DOI: 10.1021/acs.cgd.0c00777] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/06/2020] [Revised: 08/05/2020] [Indexed: 06/11/2023]
Abstract
Commercial samples of strychnine sulfate were used as the starting material in crystallization experiments accompanied by stability studies. Eight hydrate forms (HyA-HyG), including five novel hydrates, were verified. The crystal structures of HyA ("pentahydrate") and HyF ("hexahydrate") were determined from single-crystal X-ray diffraction data. HyF was identified as the most stable hydrate at high water activities at room temperature (RT), and HyA and HyC were also found to be stable at ambient conditions. Long-time storage experiments over nearly two decades confirm that these three hydrates are stable at ambient conditions (20-60% relative humidity). The other five hydrates, HyB ("dihydrate"), HyD, HyE, HyG, and HyH, are only observable at the low(est) relative humidity (RH) levels at RT. Some of these latter forms can only exist within a very narrow RH range and are therefore intermediate phases. By applying a range of complementary experimental techniques such as gravimetric moisture sorption analysis, thermal analysis, moisture controlled PXRD measurements, and variable temperature IR spectroscopy in combination with principal component analysis, it was possible to identify the distinct hydrate phases and elucidate their stability and dehydration pathways. The observed (de)hydration routes, HyA ↔ HyB, HyC ↔ HyD ↔ HyE, HyF ↔ HyG ↔ HyH and HyF → HyA ↔ HyB, depended on the initial hydrate form, particle size, and atmospheric conditions. In addition, a transformation from HyC/HyA to HyF occurs at high RH values at RT. The specific moisture and temperature conditions of none of the applied drying regimes yielded a crystalline water-free form, which highlights the essential role of water molecules for the formation and stability of the crystalline strychnine sulfate phases.
Collapse
Affiliation(s)
- Doris E. Braun
- Institute
of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Thomas Gelbrich
- Institute
of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Volker Kahlenberg
- Institute
of Mineralogy and Petrography, University
of Innsbruck, Innrain 52, 6020 Innsbruck, Austria
| | - Ulrich J. Griesser
- Institute
of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| |
Collapse
|
17
|
Vidal LMT, Bezerra BP, Fonseca JCD, Mallmann ASV, de Sousa FCF, Barbosa-Filho JM, Ayala AP. Polymorphism in natural alkamides from Aniba riparia (Nees) Mez ( Lauraceae). CrystEngComm 2020. [DOI: 10.1039/d0ce01078b] [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
The elucidation of crystal structures of polymorphs of riparins I, II, and III combined with thermal analysis studies allowed the determination of the thermodynamic relationships between polymorphic pairs.
Collapse
|
18
|
Pereira JEM, Eckert J, Rudic S, Yu D, Mole R, Tsapatsaris N, Bordallo HN. Hydrogen bond dynamics and conformational flexibility in antipsychotics. Phys Chem Chem Phys 2019; 21:15463-15470. [PMID: 31257373 DOI: 10.1039/c9cp02456e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Effective treatment of disorders of the central nervous system can often be achieved using bioactive molecules of similar moieties to those known to be tolerable. A better understanding of the solid-state characteristics of such molecules could thereby create new opportunities for research on pharmaceutical preparations and drug prescriptions, while information about their rich intramolecular dynamics may well add an important aspect in the field of in silico drug discovery. We have therefore investigated three different antipsychotic drugs: haloperidol (C21H23ClFNO2, HAL), aripiprazole (C23H27Cl2N3O2, APZ) and quetiapine hemifumarate (C21H25N3O2S·0.5C4H4O4, QTP) based on similarities either in their structures, hydrophobic and hydrophilic moieties, or in their modes of action, typical or atypical. Our aim was to test the structural and molecular stability of these three different antipsychotics. To this end, we compared the molecular vibrations observed by inelastic neutron spectroscopy of these systems with those from theoretical periodic calculations of the crystalline antipsychotics using the Vienna ab initio simulation package (VASP). While most of the observed features in the lattice region were reasonably well represented by the calculations, the overall spectra were relatively complex, and hence traditional assignment procedures for the approximately 600 normal modes in the unit cell were not possible. These results indicate that in the search for new drug candidates, not only analysis of the flexibility of the receptor, but also the dynamics of the active molecules play a role in improving the prediction of binding affinities.
Collapse
Affiliation(s)
- Jose E M Pereira
- The Niels Bohr Institute, University of Copenhagen, DK-2100, Copenhagen, Denmark.
| | - Juergen Eckert
- Department of Chemistry and Biochemistry, Texas Tech University, Lubbock, TX 79409-1061, USA and Theoretical Division, Los Alamos National Laboratory, Los Alamos, NM 87545, USA
| | - Svemir Rudic
- ISIS Facility, STFC, Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, UK
| | - Dehong Yu
- Australian Center for Neutron Scattering, Australian Nuclear Science and Technology Organization, Lucas Heights, 2233 NSW, Australia
| | - Richard Mole
- Australian Center for Neutron Scattering, Australian Nuclear Science and Technology Organization, Lucas Heights, 2233 NSW, Australia
| | - Nikolaos Tsapatsaris
- The Niels Bohr Institute, University of Copenhagen, DK-2100, Copenhagen, Denmark. and European Spallation Source ESS ERIC, PO Box 176, SE-221 00 Lund, Sweden
| | - Heloisa N Bordallo
- The Niels Bohr Institute, University of Copenhagen, DK-2100, Copenhagen, Denmark. and European Spallation Source ESS ERIC, PO Box 176, SE-221 00 Lund, Sweden
| |
Collapse
|
19
|
Braun DE, Vickers M, Griesser UJ. Dapsone Form V: A Late Appearing Thermodynamic Polymorph of a Pharmaceutical. Mol Pharm 2019; 16:3221-3236. [PMID: 31075201 DOI: 10.1021/acs.molpharmaceut.9b00419] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Five anhydrate polymorphs (forms I-V) and the isomorphic dehydrate (Hydehy) of dapsone (4,4'-diaminodiphenyl sulfone or DDS) were prepared and characterized in an interdisciplinary experimental and computational study, elucidating the kinetic and thermodynamic stabilities, solid form interrelationships, and structural features of the known forms I-IV, the novel polymorph form V, and Hydehy. Calorimetric measurements, solubility experiments, and lattice energy calculations revealed that form V is the thermodynamically stable polymorph from absolute zero to at least 90 °C. At higher temperatures, form II, and then form I, becomes the most stable DDS solid form. The computed 0 K stability order (lattice energy calculations) was confirmed with calorimetric measurements as follows, V (most stable) > III > Hydehy > II > I > IV (least stable). The discovery of form V was complicated by the fact that the metastable but kinetically stabilized form III shows a higher nucleation and growth rate. By combining laboratory powder X-ray diffraction data and ab initio calculations, the crystal structure of form V ( P21/ c, Z' = 4) was solved, with a high energy DDS conformation allowing a denser packing and more stable intermolecular interactions, rationalizing the formation of a high Z' structure. The structures of the forms I and IV, only observed from the melt and showing distinct packing features compared to the forms II, III, and V, were derived from the computed crystal energy landscapes. Dehydration modeling of the DDS hydrate led to the Hydehy structure. This study expands our understanding about the complex crystallization behavior of pharmaceuticals and highlights the big challenge in solid form screening, especially that there is no clear end point.
Collapse
Affiliation(s)
- Doris E Braun
- Institute of Pharmacy , University of Innsbruck , Innrain 52c , 6020 Innsbruck , Austria
| | - Martin Vickers
- Department of Chemistry , University College London , 20 Gordon Street , London WC1H 0AJ , U.K
| | - Ulrich J Griesser
- Institute of Pharmacy , University of Innsbruck , Innrain 52c , 6020 Innsbruck , Austria
| |
Collapse
|
20
|
Knapik-Kowalczuk J, Chmiel K, Jurkiewicz K, Wojnarowska Z, Kurek M, Jachowicz R, Paluch M. Influence of Polymeric Additive on the Physical Stability and Viscoelastic Properties of Aripiprazole. Mol Pharm 2019; 16:1742-1750. [PMID: 30848603 DOI: 10.1021/acs.molpharmaceut.9b00084] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this article, we investigated aripiprazole + Kollidon VA64 (ARP/KVA) and aripiprazole + Soluplus (ARP/SOP) amorphous solid dispersions. Thermal properties of all prepared systems have been examined by means of differential scanning calorimetry (DSC). Compositions revealing the recrystallization tendency were subsequently investigated by means of broadband dielectric spectroscopy (BDS). On the basis of dielectric data, the physically stable drug-polymer concentrations have been found. Finally, these systems have been investigated by rheology, which enables us to determine the minimal temperature required for dissolving the drug in the polymeric matrix, as well as the temperature dependence of the sample viscosity. Our investigations have shown that the amorphous form of the investigated antipsychotic drug might be effectively stabilized by both employed polymers. However, due to the better stabilization effect and the more favorable rheological properties, KVA proved to be a better polymeric excipient for extrusion of amorphous aripiprazole.
Collapse
Affiliation(s)
- Justyna Knapik-Kowalczuk
- Institute of Physics , University of Silesia, SMCEBI , 75 Pułku Piechoty 1a , 41-500 Chorzów , Poland
| | - Krzysztof Chmiel
- Institute of Physics , University of Silesia, SMCEBI , 75 Pułku Piechoty 1a , 41-500 Chorzów , Poland
| | - Karolina Jurkiewicz
- Institute of Physics , University of Silesia, SMCEBI , 75 Pułku Piechoty 1a , 41-500 Chorzów , Poland
| | - Zaneta Wojnarowska
- Institute of Physics , University of Silesia, SMCEBI , 75 Pułku Piechoty 1a , 41-500 Chorzów , Poland
| | - Mateusz Kurek
- Faculty of Pharmacy, Chair and Department of Pharmaceutical Technology and Biopharmaceutics , Jagiellonian University , Medyczna 9 , 30-688 Kraków , Poland
| | - Renata Jachowicz
- Faculty of Pharmacy, Chair and Department of Pharmaceutical Technology and Biopharmaceutics , Jagiellonian University , Medyczna 9 , 30-688 Kraków , Poland
| | - Marian Paluch
- Institute of Physics , University of Silesia, SMCEBI , 75 Pułku Piechoty 1a , 41-500 Chorzów , Poland
| |
Collapse
|
21
|
Rietveld IB, Barrio M, Lloveras P, Céolin R, Tamarit JL. Polymorphism of spironolactone: An unprecedented case of monotropy turning to enantiotropy with a huge difference in the melting temperatures. Int J Pharm 2018; 552:193-205. [DOI: 10.1016/j.ijpharm.2018.09.059] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 09/19/2018] [Accepted: 09/24/2018] [Indexed: 10/28/2022]
|
22
|
Cryochemically Obtained Nanoforms of Antimicrobial Drug Substance Dioxidine and Their Physico-chemical and Structural Properties. CRYSTALS 2018. [DOI: 10.3390/cryst8070298] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Nanoforms of the antimicrobial drug substance 2,3-bis-(hydroxymethyl) quinoxaline-N,N′-dioxide with particles sizes between 50 and 300 nm were obtained by cryochemical modification of the initial pharmaceutical substance using a freeze-drying technique and were characterized by different physicochemical methods (FTIR, UV-Vis, 1H-NMR, DSC, TG and X-ray diffraction) and transmission electron microscopy (TEM). The data obtained from FTIR- and UV–Vis-spectroscopy confirmed the unaltered chemical structure of dioxidine molecules due to the cryochemical modification method. At the same time, X-ray diffraction and thermal analysis data show the change of the crystal structure compared to the parameters of the initial pharmaceutical dioxidine substance. A higher dissolution rate was revealed for cryomodified dioxidine nanoforms. The existence of three polymorphic crystal phases was established for cryomodified dioxidine samples possessed by some thermal activation processes: two anhydrous polymorphic phases, triclinic (T) and monoclinic (M), and one hydrated form (H).
Collapse
|
23
|
Affiliation(s)
- Rafael Barbas
- Unitat de Polimorfisme i Calorimetria, Centres Científics i Tecnològics, Universitat de Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Cristina Puigjaner
- Unitat de Polimorfisme i Calorimetria, Centres Científics i Tecnològics, Universitat de Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain
| | - Rafel Prohens
- Unitat de Polimorfisme i Calorimetria, Centres Científics i Tecnològics, Universitat de Barcelona, Baldiri Reixac 10, 08028 Barcelona, Spain
| |
Collapse
|
24
|
Braun DE, Kahlenberg V, Griesser UJ. Experimental and Computational Hydrate Screening: Cytosine, 5-Flucytosine and Their Solid Solution. CRYSTAL GROWTH & DESIGN 2017; 17:4347-4364. [PMID: 30344452 PMCID: PMC6193535 DOI: 10.1021/acs.cgd.7b00664] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
The structural, temperature- and moisture dependent stability features of cytosine and 5-flucytosine monohydrates, two pharmaceutically important compounds, were rationalized using complementary experimental and computational approaches. Moisture sorption/desorption, water activity, thermal analysis and calorimetry were applied to determine the stability ranges of hydrate ↔ anhydrate systems, while X-ray diffraction, IR spectroscopy and crystal structure prediction provided the molecular level understanding. At 25 °C, the critical water activity for the cytosine hydrate ↔ anhydrate system is ~0.43 and for 5-flucytosine ~0.41. In 5-flucytosine the water molecules are arranged in open channels, therefore the kinetic desorption data, dehydration < 40% relative humidity (RH), conform with the thermodynamic data, whereas for the cytosine isolated site hydrate dehydration was observed at RH < 15%. Peritectic dissociation temperatures of the hydrates were measured to be 97 °C and 84.2 °C for cytosine and 5-flucytosine, respectively, and the monohydrate to anhydrate transition enthalpies to be around 10 kJ mol-1. Computed crystal energy landscapes not only revealed that the substitution of C5 (H or F) controls the packing and properties of cytosine/5-flucytosine solid forms, but also have enabled the finding of a monohydrate solid solution of the two substances which shows increased thermal- and moisture-dependent stability compared to 5-flucytosine monohydrate.
Collapse
Affiliation(s)
- Doris E. Braun
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Volker Kahlenberg
- Institute of Mineralogy and Petrography, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria
| | - Ulrich J. Griesser
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| |
Collapse
|
25
|
3D printed orodispersible films with Aripiprazole. Int J Pharm 2017; 533:413-420. [PMID: 28552800 DOI: 10.1016/j.ijpharm.2017.05.052] [Citation(s) in RCA: 140] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 05/05/2017] [Accepted: 05/22/2017] [Indexed: 11/23/2022]
Abstract
Three dimensional printing technology is gaining in importance because of its increasing availability and wide applications. One of the three dimensional printing techniques is Fused Deposition Modelling (FDM) which works on the basis of hot melt extrusion-well known in the pharmaceutical technology. Combination of fused deposition modelling with preparation of the orodispersible film with poorly water soluble substance such as aripiprazole seems to be extra advantageous in terms of dissolution rate. 3D printed as well as casted films were compared in terms of physicochemical and mechanical properties. Moreover, drug-free films were prepared to evaluate the impact of the extrusion process and aripiprazole presence on the film properties. X-ray diffractometry and thermal analyses confirmed transition of aripiprazole into amorphous state during film preparation using 3D printing technique. Amorphization of the aripiprazole and porous structure of printed film led to increased dissolution rate in comparison to casted films, which, however have slightly better mechanical properties due to their continuous structure. It can be concluded that fused deposition modelling is suitable technique and polyvinyl alcohol is applicable polymer for orodispersible films preparation.
Collapse
|
26
|
Vernaya OI, Shabatin VP, Shabatina TI, Khvatov DI, Semenov AM, Yudina TP, Danilov VS. Cryochemical modification, activity, and toxicity of dioxidine. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2017. [DOI: 10.1134/s0036024417020339] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
27
|
Saunier J, Herry JM, Yagoubi N, Marlière C. Exploring complex transitions between polymorphs on a small scale by coupling AFM, FTIR and DSC: the case of Irganox 1076® antioxidant. RSC Adv 2017. [DOI: 10.1039/c6ra25632e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Thanks to adhesion force mapping by AFM, solid/solid transitions are distinguished from melting/recrystallization processes occurring in the same temperature range.
Collapse
Affiliation(s)
- Johanna Saunier
- IFR 141
- EA 401
- UFR de Pharmacie
- Univ. Paris Sud
- Université Paris-Saclay
| | - Jean-Marie Herry
- Micalis Institute
- INRA
- AgroParisTech
- Université Paris-Saclay
- 78350 Jouy-en-Josas
| | - Najet Yagoubi
- IFR 141
- EA 401
- UFR de Pharmacie
- Univ. Paris Sud
- Université Paris-Saclay
| | - Christian Marlière
- ISMO
- UMR CNRS 8214
- Univ. Paris Sud
- Université Paris-Saclay
- 91405 Orsay cedex
| |
Collapse
|
28
|
Nakashima A, Izumi T, Ohya K, Kondo K, Niwa T. Design of Highly Dispersible PLGA Microparticles in Aqueous Fluid for the Development of Long-Acting Release Injectables. Chem Pharm Bull (Tokyo) 2017; 65:157-165. [DOI: 10.1248/cpb.c16-00746] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Atsushi Nakashima
- Department of Industrial Pharmacy, Faculty of Pharmacy, Meijo University
| | - Tomohisa Izumi
- Department of Industrial Pharmacy, Faculty of Pharmacy, Meijo University
| | - Kazutomi Ohya
- Department of Industrial Pharmacy, Faculty of Pharmacy, Meijo University
| | - Keita Kondo
- Department of Industrial Pharmacy, Faculty of Pharmacy, Meijo University
| | - Toshiyuki Niwa
- Department of Industrial Pharmacy, Faculty of Pharmacy, Meijo University
| |
Collapse
|
29
|
Braun DE, Oberacher H, Arnhard K, Orlova M, Griesser UJ. 4-Aminoquinaldine monohydrate polymorphism: Prediction and impurity aided discovery of a difficult to access stable form. CrystEngComm 2016; 18:4053-4067. [PMID: 28649176 PMCID: PMC5482396 DOI: 10.1039/c5ce01758k] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Crystal structure prediction studies indicated the existence of an unknown high density monohydrate structure (Hy1B°) as global energy minimum for 4-aminoquinaldine (4-AQ). We thus performed an interdisciplinary experimental and computational study elucidating the crystal structures, solid form inter-relationships, kinetic and thermodynamic stabilities of the stable anhydrate (AH I°), the kinetic monohydrate (Hy1A ) and this novel monohydrate polymorph (Hy1B°) of 4-AQ. The crystal structure of Hy1B° was determined by combining laboratory powder X-ray diffraction data and ab initio calculations. Dehydration studies with differential scanning calorimetry and solubility measurements confirmed the result of the lattice energy calculations, which identified Hy1B° as the thermodynamically most stable hydrate form. At 25 °C the equilibrium of the 4-AQ hydrate/anhydrate system was observed at an aw (water activity) of 0.14. The finding of Hy1B° was complicated by the fact that the metastable but kinetically stable Hy1A shows a higher nucleation and growth rate. The presence of an impurity in an available 4-AQ sample facilitated the nucleation of Hy1B°, whose crystallisation is favored under hydrothermal conditions. The value of combining experimental with theoretical studies in hydrate screening and characterisation, as well as the reasons for hydrate formation in 4-AQ, are discussed.
Collapse
Affiliation(s)
- Doris E. Braun
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Herbert Oberacher
- Institute of Legal Medicine, Innsbruck Medical University, Muellerstr. 44, 6020 Innsbruck, Austria
| | - Kathrin Arnhard
- Institute of Legal Medicine, Innsbruck Medical University, Muellerstr. 44, 6020 Innsbruck, Austria
| | - Maria Orlova
- Institute of Mineralogy and Petrography, University of Innsbruck, Innrain 52, 6020 Innsbruck, Austria
| | - Ulrich J. Griesser
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| |
Collapse
|
30
|
Roy S, Goud NR, Matzger AJ. Polymorphism in phenobarbital: discovery of a new polymorph and crystal structure of elusive form V. Chem Commun (Camb) 2016; 52:4389-92. [PMID: 26926048 PMCID: PMC4964875 DOI: 10.1039/c6cc00959j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This report highlights the discovery of a new polymorph of the anticonvulsant drug phenobarbital (PB) using polymer-induced heteronucleation (PIHn) and unravelling the crystal structure of the elusive form V. Both forms are characterized by structural, thermal and VT-Raman spectroscopy methods to elucidate phase transformation behavior and shed light on stability relationships.
Collapse
Affiliation(s)
- Saikat Roy
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, USA.
| | - N Rajesh Goud
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, USA.
| | - Adam J Matzger
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, USA. and Macromolecular Science and Engineering, University of Michigan, 48109-1055, USA
| |
Collapse
|
31
|
Gelbrich T, Braun DE, Griesser UJ. Specific energy contributions from competing hydrogen-bonded structures in six polymorphs of phenobarbital. Chem Cent J 2016; 10:8. [PMID: 26909105 PMCID: PMC4763432 DOI: 10.1186/s13065-016-0152-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2015] [Accepted: 01/21/2016] [Indexed: 12/03/2022] Open
Abstract
Background In solid state structures of organic molecules, identical sets of H-bond donor and acceptor functions can result in a range of distinct H-bond connectivity modes. Specifically, competing H-bond structures (HBSs) may differ in the quantitative proportion between one-point and multiple-point H-bond connections. For an assessment of such HBSs, the effects of their internal as well as external (packing) interactions need to be taken into consideration. The semi-classical density sums (SCDS-PIXEL) method, which enables the calculation of interaction energies for molecule–molecule pairs, was used to investigate six polymorphs of phenobarbital (Pbtl) with different quantitative proportions of one-point and two-point H-bond connections. Results The structures of polymorphs V and VI of Pbtl were determined from single crystal data. Two-point H-bond connections are inherently inflexible in their geometry and lie within a small PIXEL energy range (−45.7 to −49.7 kJ mol−1). One-point H-bond connections are geometrically less restricted and subsequently show large variations in their dispersion terms and total energies (−23.1 to −40.5 kJ mol−1). The comparison of sums of interaction energies in small clusters containing only the strongest intermolecular interactions showed an advantage for compact HBSs with multiple-point connections, whereas alternative HBSs based on one-point connections may enable more favourable overall packing interactions (i.e. V vs. III). Energy penalties associated with experimental intramolecular geometries relative to the global conformational energy minimum were calculated and used to correct total PIXEL energies. The estimated order of stabilities (based on PIXEL energies) is III > I > II > VI > X > V, with a difference of just 1.7 kJ mol−1 between the three most stable forms. Conclusions For an analysis of competing HBSs, one has to consider the contributions from internal H-bond and non-H-bond interactions, from the packing of multiple HBS instances and intramolecular energy penalties. A compact HBS based on multiple-point H-bond connections should typically lead to more packing alternatives and ultimately to a larger number of viable low-energy structures than a competing one-point HBS (i.e. dimer vs. catemer). Coulombic interaction energies associated with typical short intermolecular C–H···O contact geometries are small in comparison with dispersion effects associated with the packing complementary molecular shapes.Competing H-bond motifs can differ markedly in their energy contributions ![]() Electronic supplementary material The online version of this article (doi:10.1186/s13065-016-0152-5) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Thomas Gelbrich
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Doris E Braun
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| | - Ulrich J Griesser
- Institute of Pharmacy, University of Innsbruck, Innrain 52c, 6020 Innsbruck, Austria
| |
Collapse
|
32
|
Nanubolu JB, Ravikumar K. Correlating the melting point alteration with the supramolecular structure in aripiprazole drug cocrystals. CrystEngComm 2016. [DOI: 10.1039/c5ce02400e] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Structural reasons for the melting point variations in isostructural cocrystals of the aripiprazole drug are investigated through combined spectroscopic and diffraction studies.
Collapse
Affiliation(s)
- Jagadeesh Babu Nanubolu
- Centre for X-ray Crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500607, India
| | - Krishnan Ravikumar
- Centre for X-ray Crystallography
- CSIR-Indian Institute of Chemical Technology
- Hyderabad 500607, India
| |
Collapse
|
33
|
Xu K, Xiong X, Li S, Tang P, He J, Yang H, Li H. A new polymorph of glipizide with enhanced properties obtained using environmentally friendly methods. CrystEngComm 2016. [DOI: 10.1039/c6ce00571c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
|
34
|
Zeidan TA, Trotta JT, Tilak PA, Oliveira MA, Chiarella RA, Foxman BM, Almarsson Ö, Hickey MB. An unprecedented case of dodecamorphism: the twelfth polymorph of aripiprazole formed by seeding with its active metabolite. CrystEngComm 2016. [DOI: 10.1039/c5ce02467f] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
35
|
Studies of phase transitions in the aripiprazole solid dosage form. J Pharm Biomed Anal 2015; 117:298-303. [PMID: 26397209 DOI: 10.1016/j.jpba.2015.09.004] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2015] [Revised: 09/01/2015] [Accepted: 09/03/2015] [Indexed: 11/21/2022]
Abstract
Studies of the phase transitions in an active substance contained in a solid dosage form are very complicated but essential, especially if an active substance is classified as a BCS Class IV drug. The purpose of this work was the development of sensitive methods for the detection of the phase transitions in the aripiprazole tablets containing initially its form III. Aripiprazole exhibits polymorphism and pseudopolymorphism. Powder diffraction, Raman spectroscopy and differential scanning calorimetry methods were developed for the detection of the polymorphic transition between forms III and I as well as the phase transition of form III into aripiprazole monohydrate in tablets. The study involved the initial 10 mg and 30 mg tablets, as well as those stored in Al/Al blisters, a triplex blister pack and HDPE bottles (with and without desiccant) under accelerated and long term conditions. The polymorphic transition was not observed in the initial and stored tablets but it was visible on the DSC curve of the Abilify(®) 10 mg reference tablets. The formation of the monohydrate was observed in the diffractograms and Raman spectra in the tablets stored under accelerated conditions. The monohydrate phase was not detected in the tablets stored in the Al/Al blisters under long term conditions. The results showed that the Al/Al blisters can be recommended as the packaging of the aripiprazole tablets containing form III.
Collapse
|
36
|
Xu K, Xiong X, Guo L, Wang L, Li S, Tang P, Yan J, Wu D, Li H. An Investigation into the Polymorphism and Crystallization of Levetiracetam and the Stability of its Solid Form. J Pharm Sci 2015; 104:4123-4131. [PMID: 26331706 DOI: 10.1002/jps.24628] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2015] [Revised: 07/21/2015] [Accepted: 08/11/2015] [Indexed: 12/11/2022]
Abstract
Levetiracetam (LEV) crystals were prepared using different solvents at different temperatures. The LEV crystals were systematically characterized by X-ray powder diffraction (XRPD) and morphological analysis. The results indicated that many kinds of crystal habits exist in a solid form of LEV. To investigate the effects of LEV concentration, crystallization temperature, and crystallization type on crystallization and solid phase transformation of LEV, multiple methods were performed for LEV aqueous solution to determine if a new solid form exists in solid-state LEV. However, XRPD data demonstrate that the LEV solid forms possess same spatial arrangements that are similar to the original solid form. This result indicates that the LEV concentration, crystallization temperature, and crystallization type in aqueous solution have no influence on the crystallization and solid phase transformation of LEV. Moreover, crystallization by sublimation, melt cooling, and quench cooling, as well as mechanical effect, did not result in the formation of new LEV solid state. During melt cooling, the transformation of solid form LEV is a direct process from melting amorphous phase to the original LEV crystal phase, and the conversion rate is very quick. In addition, stability investigation manifested that LEV solid state is very stable under various conditions.
Collapse
Affiliation(s)
- Kailin Xu
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Xinnuo Xiong
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Liuqi Guo
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Lili Wang
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Shanshan Li
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Peixiao Tang
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Jin Yan
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Di Wu
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China
| | - Hui Li
- College of Chemical Engineering, Sichuan University, Chengdu 610065, China.
| |
Collapse
|
37
|
In vitro dissolution-permeation evaluation of an electrospun cyclodextrin-based formulation of aripiprazole using μFlux™. Int J Pharm 2015; 491:180-9. [PMID: 26117189 DOI: 10.1016/j.ijpharm.2015.06.019] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2015] [Revised: 06/12/2015] [Accepted: 06/14/2015] [Indexed: 11/20/2022]
Abstract
Since it is a well-known fact that among the newly discovered active pharmaceutical ingredients the number of poorly water soluble candidates is continually increasing, dissolution enhancement of poorly water soluble drugs has become one of the central challenges of pharmaceutical studies. So far the preclinical studies have been mainly focused on formulation methods to enhance the dissolution of active compounds, in many cases disregarding the fact that the formulation matrix not only affects dissolution but also has an effect on the transport through biological membranes, changing permeation of the drug molecules. The aim of this study was to test an electrospun cyclodextrin-based formulation of aripiprazole with the novel μFlux apparatus, which monitors permeation together with dissolution, and by this means better in vitro-in vivo correlation is achieved. It was evinced that a cyclodextrin-based electrospun formulation of aripiprazole has the potential to ensure fast drug delivery through the oral mucosa owing to the ultrafast dissolution of the drug from the formulation and the enhanced flux across membranes as shown by the result of the novel in vitro dissolution and permeation test.
Collapse
|
38
|
Two solid forms of tauroursodeoxycholic acid and the effects of milling and storage temperature on solid-state transformations. Int J Pharm 2015; 486:185-94. [DOI: 10.1016/j.ijpharm.2015.03.072] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2015] [Revised: 03/08/2015] [Accepted: 03/30/2015] [Indexed: 01/06/2023]
|
39
|
Bērziņš A, Hodgkinson P. Solid-state NMR and computational investigation of solvent molecule arrangement and dynamics in isostructural solvates of droperidol. SOLID STATE NUCLEAR MAGNETIC RESONANCE 2015; 65:12-20. [PMID: 25282618 DOI: 10.1016/j.ssnmr.2014.09.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 09/02/2014] [Accepted: 09/07/2014] [Indexed: 06/03/2023]
Abstract
(13)C, (15)N and (2)H solid-state NMR spectroscopy have been used to rationalize arrangement and dynamics of solvent molecules in a set of isostructural solvates of droperidol. The solvent molecules are determined to be dynamically disordered in the methanol and ethanol solvates, while they are ordered in the acetonitrile and nitromethane solvates. (2)H NMR spectra of deuterium-labelled samples allowed the characterization of the solvent molecule dynamics in the alcohol solvates and the non-stoichiometric hydrate. The likely motion of the alcohol molecules is rapid libration within a site, plus occasional exchange into an equivalent site related by the inversion symmetry, while the water molecules are more strongly disordered. DFT calculations strongly suggest that the differences in dynamics between the solvates are related to differences in the energetic penalty for reversing the orientation of a solvent molecule.
Collapse
Affiliation(s)
- Agris Bērziņš
- Faculty of Chemistry, University of Latvia, Kr. Valdemara iela 48, Riga LV-1013, Latvia; Department of Chemistry, Durham University, South Road, Durham DH1 3LE, UK.
| | - Paul Hodgkinson
- Department of Chemistry, Durham University, South Road, Durham DH1 3LE, UK.
| |
Collapse
|
40
|
Sridhar B, Nanubolu JB, Ravikumar K. The first polymorph in the family of nucleobases: a second form of cytosine. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2015; 71:128-35. [DOI: 10.1107/s2053229615000492] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/17/2014] [Accepted: 01/09/2015] [Indexed: 11/11/2022]
Abstract
A new polymorph of cytosine, C4H5N3O, is reported half a century after the report of its first known crystal structure [Barker & Marsh (1964).Acta Cryst.17, 1581–1587]. Cytosine thus provides the first polymorphic example in the category of parent nucleobases. The new form, denoted (Ib), was observed unexpectedly during an attempt to cocrystallize cytosine with catechol. Form (Ib) crystallizes in the orthorhombic centrosymmetric space groupPccnwith two molecules in the asymmetric unit. The previously known form, denoted (Ia), crystallizes in the orthorhombic noncentrosymmetric space groupP212121. The cytosine molecule is planar in both forms. Hydrogen-bonding interactions are also similar for both forms. Infinite one-dimensional ribbons composed of cytosine base-pair dimers inR22(8) arrangements are observed in both (Ia) and (Ib). However, the way that the ribbons are packed differs in (Ia) and (Ib). This appears to guide the centrosymmetricversusnoncentrosymmetric space-group selection through the formation of an inversion-related motif in polymorph (Ib) and a helical propagation in polymorph (Ia). A few selected polymorphic systems have been gathered from the Cambridge Structural Database to understand possible structural features responsible for achiral molecules adopting centro- and noncentrosymmetric space groups.
Collapse
|
41
|
Xu K, Zheng S, Guo L, Li S, Wang L, Tang P, Yan J, Wu D, Li H. Four solid forms of tauroursodeoxycholic acid and solid-state transformations: effects of temperature and milling. RSC Adv 2015. [DOI: 10.1039/c5ra18985c] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
TUDCA solid forms were characterized. Temperature-triggered and mechanical activated solid-state transformation, as environmental-friendly methods, were successfully used for getting new solid forms and studying solid-state transformations procedure.
Collapse
Affiliation(s)
- Kailin Xu
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Shoujun Zheng
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Liuqi Guo
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Shanshan Li
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Lili Wang
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Peixiao Tang
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Jin Yan
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Di Wu
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China
| | - Hui Li
- College of Chemical Engineering
- Sichuan University
- Chengdu
- China
| |
Collapse
|
42
|
Hean D, Gelbrich T, Griesser UJ, Michael JP, Lemmerer A. Structural insights into the hexamorphic system of an isoniazid derivative. CrystEngComm 2015. [DOI: 10.1039/c5ce00275c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The compound isonicotinic acid (E)-(1-phenylethylidene)hydrazide exists in 6 different structural forms isolated through complex manipulations on a Kofler hot stage.
Collapse
Affiliation(s)
- D. Hean
- Molecular Sciences Institute
- School of Chemistry
- University of the Witwatersrand
- Johannesburg 2050, South Africa
| | - T. Gelbrich
- University of Innsbruck
- Institute of Pharmacy
- Pharmaceutical Technology, Josef-Moeller-Haus
- A-6020 Innsbruck, Austria
| | - U. J. Griesser
- University of Innsbruck
- Institute of Pharmacy
- Pharmaceutical Technology, Josef-Moeller-Haus
- A-6020 Innsbruck, Austria
| | - J. P. Michael
- Molecular Sciences Institute
- School of Chemistry
- University of the Witwatersrand
- Johannesburg 2050, South Africa
| | - A. Lemmerer
- Molecular Sciences Institute
- School of Chemistry
- University of the Witwatersrand
- Johannesburg 2050, South Africa
| |
Collapse
|
43
|
Łaszcz M, Trzcińska K, Witkowska A, Lipiec-Abramska E, Szczepek WJ. Phase transition studies of dutasteride crystalline forms. CrystEngComm 2015. [DOI: 10.1039/c5ce00036j] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Polymorphism of dutasteride is studied. Details of the crystal and molecular structure of unsolvated form I are presented.
Collapse
Affiliation(s)
- M. Łaszcz
- Pharmaceutical Research Institute
- 01-793 Warsaw, Poland
| | - K. Trzcińska
- Pharmaceutical Research Institute
- 01-793 Warsaw, Poland
| | - A. Witkowska
- Pharmaceutical Research Institute
- 01-793 Warsaw, Poland
| | | | | |
Collapse
|
44
|
Elder DP, Patterson JE, Holm R. The solid-state continuum: a perspective on the interrelationships between different solid-state forms in drug substance and drug product. J Pharm Pharmacol 2014; 67:757-72. [DOI: 10.1111/jphp.12293] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Accepted: 06/29/2014] [Indexed: 11/29/2022]
Abstract
Abstract
Objective
The objective of the review is to provide an overview of the nomenclature used in the solid-state continuum and relate these to the development of drug substances and drug products.
Key findings
The importance of a rational approach to solid-state form selection, including integrated decision making (ensuring equal weight is given to the needs of the drug substance and the drug product), is vital for the effective development of a drug candidate. For example, how do secondary processing considerations influence the selection of drug substance solid-state form and resulting formulation, and how can drug substance solid-state form be used to optimise secondary processing? Further, the potential use of ‘crystal’ engineering to optimise stability, purity and optical resolutions, and the linked regulatory requirements, will be discussed.
Summary
The nomenclature used in the solid-state continuum, which contains a large number of different crystalline and non-crystalline forms, for example, amorphous systems, was reviewed. Further, the significant role of the drug substance within the solid oral dose form from a physicochemical perspective was covered.
Collapse
Affiliation(s)
| | - James E Patterson
- Global Manufacturing and Supply, GlaxoSmithKline, Melbourne, Victoria, Australia
| | - René Holm
- H. Lundbeck A/S, Biologics and Pharmaceutical Science, Valby, Denmark
| |
Collapse
|
45
|
|
46
|
Gaglioti K, Chierotti MR, Grifasi F, Gobetto R, Griesser UJ, Hasa D, Voinovich D. Improvement of the water solubility of tolfenamic acid by new multiple-component crystals produced by mechanochemical methods. CrystEngComm 2014. [DOI: 10.1039/c4ce00549j] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Tolfenamic acid (HTA) is a drug characterized by very poor solubility in water. By mechanochemical methods, new solid-state forms of HTA were obtained, showing better thermal stability than pure HTA and an improved dissolution rate.
Collapse
Affiliation(s)
- K. Gaglioti
- Dip. di chimica
- Fisica d dei materiali
- Via P. Giuria
- Torino
- Italy
| | - M. R. Chierotti
- Dip. di chimica
- Fisica d dei materiali
- Via P. Giuria
- Torino
- Italy
| | - F. Grifasi
- Dip. di chimica
- Fisica d dei materiali
- Via P. Giuria
- Torino
- Italy
| | - R. Gobetto
- Dip. di chimica
- Fisica d dei materiali
- Via P. Giuria
- Torino
- Italy
| | - U. J. Griesser
- Institute of Pharmacy
- Pharmaceutical Technology
- University of Innsbruck
- Josef-Moeller-Haus Innrain 52c
- Innsbruck, Austria
| | - D. Hasa
- Dept. of Chemical and Pharmaceutical Sciences
- University of Trieste
- Trieste, Italy
| | - D. Voinovich
- Dept. of Chemical and Pharmaceutical Sciences
- University of Trieste
- Trieste, Italy
| |
Collapse
|
47
|
Affiliation(s)
- Aurora J Cruz-Cabeza
- Van 't Hoff Institute for Molecular Sciences, University of Amsterdam , Science Park 904, 1098 XH Amsterdam, The Netherlands
| | | |
Collapse
|
48
|
Oh YJ, Choi G, Choy YB, Park JW, Park JH, Lee HJ, Yoon YJ, Chang HC, Choy JH. Aripiprazole-montmorillonite: a new organic-inorganic nanohybrid material for biomedical applications. Chemistry 2013; 19:4869-75. [PMID: 23436433 DOI: 10.1002/chem.201203384] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Indexed: 11/10/2022]
Abstract
Poor aqueous solubility and the unpleasant taste of aripiprazole (APZ) have been recurring problems, owing to its low bioavailability and low patient tolerance, respectively. Herein, we prepared a nanohybrid system that was based on a bentonite clay material, montmorillonite (MMT), which could both mask the taste and enhance the solubility of APZ (i.e., APZ-MMT). To further improve the efficacy of this taste masking and drug solubility, APZ-MMT was also coated with a cationic polymer, polyvinylacetal diethylamino acetate (AEA). In vitro dissolution tests at neutral pH showed that the amount of drug that was released from the AEA-coated APZ-MMT was greatly suppressed (<1%) for the first 3 min, thus suggesting that AEA-coated APZ-MMT has strong potential for the taste masking of APZ. Notably, in simulated gastric juice at pH 1.2, the total percentage of APZ that was released within the first 2 h increased up to 95% for AEA-coated APZ-MMT. Furthermore, this in vitro release profile was also similar to that of Abilify®, a commercially available medication. In vivo experiments by using Sprague-Dawley rats were also performed to compare the pharmacokinetics of AEA-coated APZ-MMT and Abilify®. AEA-coated APZ-MMT exhibited about 20% higher systemic exposure of APZ and its metabolite, dehydro-APZ, compared with Abilify®. Therefore, a new MMT-based nanovehicle, which is coated with a cationic polymer, can act as a promising delivery system for both taste masking and for enhancing the bioavailability of APZ.
Collapse
Affiliation(s)
- Yeon-Ji Oh
- Center for Intelligent Nano-Bio Materials (CINBM), Department of Bioinspired Science and Department of Chemistry and Nano Science (Ewha Global Top 5 program), Ewha Womans University, Seoul 120-750, Korea
| | | | | | | | | | | | | | | | | |
Collapse
|
49
|
Freire E, Polla G, Baggio R. Aripiprazole salts. III. Bis(aripiprazolium) oxalate-oxalic acid (1/1). Acta Crystallogr C 2013; 69:186-90. [PMID: 23377689 DOI: 10.1107/s0108270113001133] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2012] [Accepted: 01/11/2013] [Indexed: 11/10/2022] Open
Abstract
The asymmetric unit of the title salt [systematic name: bis(4-(2,3-dichlorophenyl)-1-{4-[(2-oxo-1,2,3,4-tetrahydroquinolin-7-yl)oxy]butyl}piperazin-1-ium) oxalate-oxalic acid (1/1)], 2C(23)H(28)Cl(2)N(3)O(2)(+)·C(2)O(4)(2-)·C(2)H(2)O(4), consists of one protonated aripiprazole unit (HArip(+)), half an oxalate dianion and half an oxalic acid molecule, the latter two lying on inversion centres. The conformation of the HArip(+) cation differs from that in other reported salts and resembles more the conformation of neutral Arip units in reported polymorphs and solvates. The intermolecular interaction linking HArip(+) cations is also similar to those in reported Arip compounds crystallizing in the space group P1, with head-to-head N-H···O hydrogen bonds generating centrosymmetric dimers, which are further organized into planar ribbons parallel to (012). The oxalate anions and oxalic acid molecules form hydrogen-bonded chains running along [010], which 'pierce' the planar ribbons, interacting with them through a number of stronger N-H···O and weaker C-H···O hydrogen bonds, forming a three-dimensional network.
Collapse
Affiliation(s)
- Eleonora Freire
- Gerencia de Investigación y Aplicaciones, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Buenos Aires, Argentina.
| | | | | |
Collapse
|
50
|
Ardiana F, Lestari MLAD, Indrayanto G. Aripiprazole. PROFILES OF DRUG SUBSTANCES, EXCIPIENTS, AND RELATED METHODOLOGY 2013; 38:35-85. [PMID: 23668402 DOI: 10.1016/b978-0-12-407691-4.00002-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Aripiprazole is an atypical antipsychotic drug which belongs to the benzisoxazole derivatives. Aripiprazole is available in many salts and polymorphs forms. X-ray diffraction, IR spectroscopy, and DSC could be used for differentiating the polymorphs of aripiprazole. Some instrumental methods of analysis such as UV spectrophotometer, HPTLC, HPLC, and CE can be applied for analyzing aripiprazole and its impurities. Chromatography methods that have an MS/MS detector is the method of choice for analyzing aripiprazole and its metabolites. Bioavailability studies of the polymorphs of aripiprazole and their pharmaceutical preparations are very important to optimize the formulations of the dosage forms.
Collapse
Affiliation(s)
- Febry Ardiana
- Research & Development, Bernofarm Pharmaceutical Company, Buduran-Sidoarjo, Indonesia
| | | | | |
Collapse
|