101
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Latreche M, Willart JF. Analysis of the Dissolution Mechanism of Drugs into Polymers: The Case of the PVP/Sulindac System. Pharmaceutics 2023; 15:pharmaceutics15051505. [PMID: 37242747 DOI: 10.3390/pharmaceutics15051505] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 05/05/2023] [Accepted: 05/12/2023] [Indexed: 05/28/2023] Open
Abstract
This paper is dealing with the dissolution mechanism of crystalline sulindac into amorphous Polyvinylpyrrolidone (PVP) upon heating and annealing at high temperatures. Special attention is paid on the diffusion mechanism of drug molecules in the polymer which leads to a homogeneous amorphous solid dispersion of the two components. The results show that isothermal dissolution proceeds through the growth of polymer zones saturated by the drug, and not by a progressive increase in the uniform drug concentration in the whole polymer matrix. The investigations also show the exceptional ability of temperature Modulated Differential Scanning Calorimetry (MDSC) to identify the equilibrium and out of equilibrium stages of dissolution corresponding to the trajectory of the mixture into its state diagram.
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Affiliation(s)
- Mansour Latreche
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207, UMET-Unité Matériaux et Transformations, F-59000 Lille, France
| | - Jean-François Willart
- Univ. Lille, CNRS, INRAE, Centrale Lille, UMR 8207, UMET-Unité Matériaux et Transformations, F-59000 Lille, France
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102
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Barghi L, Vekalati A, Jahangiri A. Stability-Enhanced Ternary Solid Dispersions of Glyburide: Effect of Preparation Method on Physicochemical Properties. Adv Pharmacol Pharm Sci 2023; 2023:2641153. [PMID: 37215486 PMCID: PMC10199792 DOI: 10.1155/2023/2641153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Revised: 04/04/2023] [Accepted: 05/03/2023] [Indexed: 05/24/2023] Open
Abstract
Introduction Limited aqueous solubility and subsequent poor absorption and low bioavailability are the main challenges in oral drug delivery. Solid dispersion is a widely used formulation strategy to overcome this problem. Despite their efficiency, drug crystallization tendency and poor physical stability limited their commercial use. To overcome this defect, ternary solid dispersions of glyburide: sodium lauryl sulfate (SLS) and polyethylene glycol 4000 (PEG), were developed using the fusion (F) and solvent evaporation (SE) techniques and subsequently evaluated and compared. Materials and Methods Physicochemical and dissolution properties of the prepared ternary solid dispersions were evaluated using differential scanning calorimetry (DSC), infrared spectroscopy (FTIR), and dissolution test. Flow properties were also assessed using Carr's index and Hausner's ratio. The physical stability of the formulations was evaluated initially and after 12 months by comparing dissolution properties. Results Formulations prepared by both methods similarly showed significant improvements in dissolution efficiency and mean dissolution time compared to the pure drug. However, formulations that were prepared by SE showed a greater dissolution rate during the initial phase of dissolution. Also, after a 12-month follow-up, no significant change was observed in the mentioned parameters. The results of the infrared spectroscopy indicated that there was no chemical interaction between the drug and the polymer. The absence of endotherms related to the pure drug from thermograms of the prepared formulations could be indicative of reduced crystallinity or the gradual dissolving of the drug in the molten polymer. Moreover, formulations prepared by the SE technique revealed superior flowability and compressibility in comparison with the pure drug and physical mixture (ANOVA, P < 0.05). Conclusion Efficient ternary solid dispersions of glyburide were successfully prepared by F and SE methods. Solid dispersions prepared by SE, in addition to increasing the dissolution properties and the possibility of improving the bioavailability of the drug, showed acceptable long-term physical stability with remarkably improved flowability and compressibility features.
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Affiliation(s)
- Leila Barghi
- Department of Pharmaceutics, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Afshin Vekalati
- School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
| | - Azin Jahangiri
- Department of Pharmaceutics, School of Pharmacy, Urmia University of Medical Sciences, Urmia, Iran
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103
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Winck J, Gottschalk T, Thommes M. Predicting Residence Time and Melt Temperature in Pharmaceutical Hot Melt Extrusion. Pharmaceutics 2023; 15:pharmaceutics15051417. [PMID: 37242659 DOI: 10.3390/pharmaceutics15051417] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 05/03/2023] [Accepted: 05/03/2023] [Indexed: 05/28/2023] Open
Abstract
Hot-melt extrusion is increasingly applied in the pharmaceutical area as a continuous processing technology, used to design custom products by co-processing drugs together with functional excipients. In this context, the residence time and processing temperature during extrusion are critical process parameters for ensuring the highest product qualities, particularly of thermosensitive materials. Within this study, a novel strategy is proposed to predict the residence time distribution and melt temperature during pharmaceutical hot-melt extrusion processes based on experimental data. To do this, an autogenic extrusion mode without external heating and cooling was applied to process three polymers (Plasdone S-630, Soluplus and Eudragit EPO) at different specific feed loads, which were set by the screw speed and the throughput. The residence time distributions were modeled based on a two-compartment approach that couples the behavior of a pipe and a stirred tank. The throughput showed a substantial effect on the residence time, whereas the influence of the screw speed was minor. On the other hand, the melt temperatures during extrusion were mainly affected by the screw speed compared to the influence of the throughput. Finally, the compilation of model parameters for the residence time and the melt temperature within design spaces serve as the basis for an optimized prediction of pharmaceutical hot-melt extrusion processes.
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Affiliation(s)
- Judith Winck
- Laboratory of Solids Process Engineering, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Str. 68, 44227 Dortmund, Germany
| | - Tobias Gottschalk
- Laboratory of Solids Process Engineering, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Str. 68, 44227 Dortmund, Germany
- Drug Delivery Innovation Center, INVITE GmbH, Chempark Building W32, 51368 Leverkusen, Germany
| | - Markus Thommes
- Laboratory of Solids Process Engineering, Department of Biochemical and Chemical Engineering, TU Dortmund University, Emil-Figge-Str. 68, 44227 Dortmund, Germany
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104
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Lapuk SE, Mukhametzyanov TA, Schick C, Gerasimov AV. Kinetic Stability and Glass-Forming Ability of Thermally Labile Quinolone Antibiotics. Mol Pharm 2023. [PMID: 37133972 DOI: 10.1021/acs.molpharmaceut.3c00211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
The application of drugs in the amorphous state is one way to improve their bioavailability. As such, the determination of the optimal conditions for production and the assessment of the stability of the amorphous system are actively researched topics of present-day pharmaceutical science. In the present work, we have studied the kinetic stability and glass-forming ability of the thermally labile quinolone antibiotics using fast scanning calorimetry. The critical cooling rates for avoiding crystallization of the melts of oxolinic and pipemidic acids and sparfloxacin were determined to be 10 000, 40, and 80 K·s-1, respectively. The studied antibiotics were found to be "strong" glass formers. Based on a combination of nonisothermal and isothermal kinetic approaches, the Nakamura model was suitable for describing the crystallization process of the amorphous forms of the quinolone antibiotics.
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Affiliation(s)
- Semen E Lapuk
- Department of Physical Chemistry, A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya, 18, Kazan 420008, Russia
| | - Timur A Mukhametzyanov
- Department of Physical Chemistry, A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya, 18, Kazan 420008, Russia
| | - Christoph Schick
- Institute of Physics, Universität Rostock, Albert-Einstein_Street 23-24, Rostock 18051, DE, Germany
| | - Alexander V Gerasimov
- Department of Physical Chemistry, A. M. Butlerov Institute of Chemistry, Kazan Federal University, Kremlyovskaya, 18, Kazan 420008, Russia
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105
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Berruyer P, Cibaka-Ndaya C, Pinon A, Sanchez C, Drisko GL, Emsley L. Imaging Radial Distribution Functions of Complex Particles by Relayed Dynamic Nuclear Polarization. J Am Chem Soc 2023; 145:9700-9707. [PMID: 37075271 PMCID: PMC10760979 DOI: 10.1021/jacs.3c01279] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2023] [Indexed: 04/21/2023]
Abstract
The physical properties of many modern multi-component materials are determined by their internal microstructure. Tools capable of characterizing complex nanoscale architectures in composite materials are, therefore, essential to design materials with targeted properties. Depending on the morphology and the composition, structures may be measured by laser diffraction, scattering methods, or by electron microscopy. However, it can be difficult to obtain contrast in materials where all the components are organic, which is typically the case for formulated pharmaceuticals, or multi-domain polymers. In nuclear magnetic resonance (NMR) spectroscopy, chemical shifts allow a clear distinction between organic components and can in principle provide the required chemical contrast. Here, we introduce a method to obtain radial images of the internal structure of multi-component particles from NMR measurements of the relay of nuclear hyperpolarization obtained from dynamic nuclear polarization. The method is demonstrated on two samples of hybrid core-shell particles composed of a core of polystyrene with a shell of mesostructured silica filled with the templating agent CTAB and is shown to yield accurate images of the core-shell structures with a nanometer resolution.
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Affiliation(s)
- Pierrick Berruyer
- Institut
des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
| | - Cynthia Cibaka-Ndaya
- Université
de Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, Pessac F-33600, France
| | - Arthur Pinon
- Swedish
NMR Center, Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg 41390, Sweden
| | - Clément Sanchez
- Sorbonne
Université, CNRS, Collège de France, UMR 7574, Chimie
de la Matière Condensée de Paris, Paris F-75005, France
- Institute
for Advanced Study (USIAS), University of
Strasbourg, Strasbourg 67083, France
- University
of Bordeaux, Pessac F-33600, France
| | - Glenna L. Drisko
- Université
de Bordeaux, CNRS, Bordeaux INP, ICMCB, UMR 5026, Pessac F-33600, France
| | - Lyndon Emsley
- Institut
des Sciences et Ingénierie Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), Lausanne CH-1015, Switzerland
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106
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Bennett M, Beveniou E, Kerr AR, Dragosavac MM. Antisolvent Crystallization of Telmisartan Using Stainless-Steel Micromixing Membrane Contactors. CRYSTAL GROWTH & DESIGN 2023; 23:3720-3730. [PMID: 37159651 PMCID: PMC10161197 DOI: 10.1021/acs.cgd.3c00123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Revised: 03/30/2023] [Indexed: 05/11/2023]
Abstract
Controlled continuous crystallization of the active pharmaceutical ingredient (API) telmisartan (TEL) has been conducted from TEL/DMSO solutions by antisolvent crystallization in deionized water using membrane micromixing contactors. The purpose of this work was to test stainless-steel membranes with ordered 10 μm pores spaced at 200 μm in a stirred-cell (batch, LDC-1) and crossflow (continuous, AXF-1) system for TEL formation. By controlling the feed flow rate of the API and solvent, through the membrane pores as well as the antisolvent flow, it was possible to tightly control the micromixing and with that to control the crystal nucleation and growth. Batch crystallization without the membrane resulted in an inhomogeneous crystallization process, giving a mixture of crystalline and amorphous TEL materials. The rate of crystallization was controlled with a higher DMSO content (4:1 DMSO/DI water), resulting in slower crystallization of the TEL material. Both membrane setups, stirred batch and the crossflow, yielded the amorphous TEL particles when deionized water was used, while a crystalline material was produced when a mixture of DI water and DMSO was used.
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Affiliation(s)
| | - Elina Beveniou
- Wilton
Centre, Micropore Technologies Ltd, Redcar TS10 4RF, U.K.
| | - Alex Robin Kerr
- Wilton
Centre, Micropore Technologies Ltd, Redcar TS10 4RF, U.K.
| | - Marijana M. Dragosavac
- Wilton
Centre, Micropore Technologies Ltd, Redcar TS10 4RF, U.K.
- Chemical
Engineering Department, Loughborough University, Leics LE11 3TU, U.K.
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107
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Palekar S, Mamidi HK, Guo Y, Vartak R, Patel K. Corroborating various material-sparing techniques with hot melt extrusion for the preparation of triclabendazole amorphous solid dispersions. Int J Pharm 2023; 640:122989. [PMID: 37120123 DOI: 10.1016/j.ijpharm.2023.122989] [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: 11/04/2022] [Revised: 04/18/2023] [Accepted: 04/23/2023] [Indexed: 05/01/2023]
Abstract
Amorphous solid dispersions (ASD) are one of the most adopted technologies for improving the solubility of novel molecules. Formulation of ASDs using solvent free methods such as hot melt extrusion (HME) has been in the spotlight off-lately. However, early-stage formulation development is tricky and a difficult bridge to pass due to limited drug availability. Material-sparing techniques (theoretical & practical) have been used for selecting suitable polymeric carriers for formulating ASDs. However, these techniques have limitations in predicting the effect of process parameters. The objective of this study is to use both theoretical and practical material-sparing techniques to optimize a polymer for the developing Triclabendazole (TBZ) ASDs. Initial screening by theoretical approaches suggested that TBZ is highly miscible with Kollidon®VA64 (VA64) and poorly miscible with Parteck®MXP (PVA). However, results from ASDs prepared using SCFe were opposite to these predictions. ASDs prepared using either technique and both VA64 and PVA showed >200x increase in solubility. Each formulation released >85% of drug in less than 15 mins. Although the thermodynamic phase diagram suggested that VA64 was the ideal polymer for TBZ-ASDs, it has certain limitations in factoring the different elements during melt-processing and hence, practical approaches like SCFe could help in predicting the drug-polymer miscibility for HME processing.
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Affiliation(s)
- Siddhant Palekar
- College of Pharmacy and Health Sciences, St. John's University, Queens, NY, USA
| | - Hemanth K Mamidi
- College of Pharmacy and Health Sciences, St. John's University, Queens, NY, USA; Continuus Pharmaceuticals Inc, Woburn, MA, USA
| | - Yi Guo
- College of Pharmacy and Health Sciences, St. John's University, Queens, NY, USA
| | - Richa Vartak
- College of Pharmacy and Health Sciences, St. John's University, Queens, NY, USA
| | - Ketan Patel
- College of Pharmacy and Health Sciences, St. John's University, Queens, NY, USA.
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108
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Thompson SA, Davis DA, Miller DA, Kucera SU, Williams RO. Pre-Processing a Polymer Blend into a Polymer Alloy by KinetiSol Enables Increased Ivacaftor Amorphous Solid Dispersion Drug Loading and Dissolution. Biomedicines 2023; 11:1281. [PMID: 37238952 PMCID: PMC10215938 DOI: 10.3390/biomedicines11051281] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Revised: 04/13/2023] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
This study compares the effects of pre-processing multiple polymers together to form a single-phase polymer alloy prior to amorphous solid dispersion formulation. KinetiSol compounding was used to pre-process a 1:1 (w/w) ratio of hypromellose acetate succinate and povidone to form a single-phase polymer alloy with unique properties. Ivacaftor amorphous solid dispersions comprising either a polymer, an unprocessed polymer blend, or the polymer alloy were processed by KinetiSol and examined for amorphicity, dissolution performance, physical stability, and molecular interactions. A polymer alloy ivacaftor solid dispersion with a drug loading of 50% w/w was feasible versus 40% for the other compositions. Dissolution in fasted simulated intestinal fluid revealed that the 40% ivacaftor polymer alloy solid dispersion reached a concentration of 595 µg/mL after 6 h, 33% greater than the equivalent polymer blend dispersion. Fourier transform infrared spectroscopy and solid-state nuclear magnetic resonance revealed changes in the ability of the povidone contained in the polymer alloy to hydrogen bond with the ivacaftor phenolic moiety, explaining the differences in the dissolution performance. This work demonstrates that the creation of polymer alloys from polymer blends is a promising technique that provides the ability to tailor properties of a polymer alloy to maximize the drug loading, dissolution performance, and stability of an ASD.
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Affiliation(s)
- Stephen A. Thompson
- Molecular Pharmaceutics and Drug Delivery Division, College of Pharmacy, The University of Texas at Austin, 2409 W. University Ave, PHR 4.214, Austin, TX 78712, USA
| | - Daniel A. Davis
- AustinPx, LLC, 111 W Cooperative Way, Suite 300, Georgetown, TX 78626, USA
| | - Dave A. Miller
- AustinPx, LLC, 111 W Cooperative Way, Suite 300, Georgetown, TX 78626, USA
| | - Sandra U. Kucera
- AustinPx, LLC, 111 W Cooperative Way, Suite 300, Georgetown, TX 78626, USA
| | - Robert O. Williams
- Molecular Pharmaceutics and Drug Delivery Division, College of Pharmacy, The University of Texas at Austin, 2409 W. University Ave, PHR 4.214, Austin, TX 78712, USA
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109
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Lim C, Lee D, Kim M, Lee S, Shin Y, Ramsey JD, Choi HG, Lee ES, Youn YS, Oh KT. Development of a sorafenib-loaded solid self-nanoemulsifying drug delivery system: Formulation optimization and characterization of enhanced properties. J Drug Deliv Sci Technol 2023; 82:104374. [PMID: 37124157 PMCID: PMC10139733 DOI: 10.1016/j.jddst.2023.104374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Sorafenib, marketed under the brand name Nexavar®, is a multiple tyrosine kinase inhibitor drug that has been actively used in the clinical setting for the treatment of several cancers. However, the low solubility and bioavailability of sorafenib constitute a significant barrier to achieving a good therapeutic outcome. We developed a sorafenib-loaded self-nanoemulsifying drug delivery system (SNEDDS) formulation composed of capmul MCM, tween 80, and tetraglycol, and demonstrated that the SNEDDS formulation could improve drug solubility with excellent self-emulsification ability. Moreover, the sorafenib-loaded SNEDDS exhibited anticancer activity against Hep3B and KB cells, which are the most commonly used hepatocellular carcinoma and oral cancer cell lines, respectively. Subsequently, to improve the storage stability and to increase the possibility of commercialization, a solid SNEDDS for sorafenib was further developed through the spray drying method using Aerosil® 200 and PVP K 30. X-ray diffraction and differential scanning calorimeter data showed that the crystallinity of the drug was markedly reduced, and the dissolution rate of the drug was further improved in formulation in simulated gastric and intestinal fluid conditions. In vivo study, the bioavailability of the orally administered formulation increases dramatically compared to the free drug. Our results highlight the use of the solid-SNEDDS formulation to enhance sorafenib's bioavailability and outlines potential translational directions for oral drug development.
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Affiliation(s)
- Chaemin Lim
- College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
| | - Dayoon Lee
- College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
- Department of Global Innovative Drugs, College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
| | - Mikyung Kim
- College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
- Department of Global Innovative Drugs, College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
| | - Subin Lee
- College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
- Department of Global Innovative Drugs, College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
| | - Yuseon Shin
- College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
- Department of Global Innovative Drugs, College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
| | - Jacob D. Ramsey
- Center for Nanotechnology in Drug Delivery and Division of Pharmacoengineering and Molecular Therapeutics, Eshelman School of Pharmacy, University of North Carolina at Chapel Hill, NC 27599, USA
| | - Han-Gon Choi
- College of Pharmacy, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 15588, South Korea
| | - Eun Seong Lee
- Department of Biotechnology, The Catholic University of Korea, 43 Jibong-ro, Bucheon-si, Gyeonggi-do 14662, Republic of Korea
| | - Yu Seok Youn
- School of Pharmacy, Sungkyunkwan University, Suwon, Gyeonggi-do 16419, Republic of Korea
| | - Kyung Taek Oh
- College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
- Department of Global Innovative Drugs, College of Pharmacy, Chung-Ang University, 221 Heukseok-dong, Dongjak-gu, Seoul, South Korea
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110
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Kim P, Lee IS, Kim JY, Lee MJ, Choi GJ. Amorphous solid dispersions of tegoprazan and three different polymers: In vitro/in vivo evaluation of physicochemical properties. KOREAN J CHEM ENG 2023. [DOI: 10.1007/s11814-022-1280-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
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111
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Electronic band structure and density of state modulation of amphetamine and ABW type-zeolite adsorption system: DFT-CASTEP analysis. J Mol Model 2023; 29:96. [PMID: 36912996 DOI: 10.1007/s00894-023-05501-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2022] [Accepted: 03/06/2023] [Indexed: 03/14/2023]
Abstract
The structured abstract is combined from two parts: CONTEXT: The adsorption behavior of amphetamine (AMP) on the surface of ABW-aluminum silicate zeolite was implemented with a computational depiction. Studies of the electronic band structure (EBS) and density of states (DOS) were conducted to demonstrate transition behavior attributed to aggregate-adsorption interaction. Thermodynamic illustration of the studied adsorbate was studied to investigate the structural behavior of the adsorbate on the surface of the zeolite adsorbent. The best investigated models were assessed with adsorption annealing calculations related to adsorption energy surface. The periodic adsorption-annealing calculation model predicted a highly stable energetic adsorption system based on total energy, adsorption energy, rigid adsorption energy, deformation energy, and dEad/dNi ratio. METHODS: Cambridge sequential total energy package (CASTEP) based on density functional theory (DFT), under Perdew-Burke-Ernzerhof (PBE) basis set, was used to depict the energetic levels of the adsorption mechanism between AMP and ABW-aluminum silicate zeolite surface. DFT-D dispersion correction function was postulated for weakly interacted systems. Structural and electronic elucidations were described with geometrical optimization, FMOs, and MEP analyses. Thermodynamic parameters such as entropy, enthalpy, Gibbs free energy, and heat capacity over temperature dependence studied the conductivity behavior over localized energetic states based on Fermi level and described the disorder degree of the system.
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112
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Zemánková A, Hassouna F, Klajmon M, Fulem M. Solid–Liquid Equilibrium in Co-Amorphous Systems: Experiment and Prediction. Molecules 2023; 28:molecules28062492. [PMID: 36985463 PMCID: PMC10052153 DOI: 10.3390/molecules28062492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 03/11/2023] Open
Abstract
In this work, the solid–liquid equilibrium (SLE) of four binary systems combining two active pharmaceutical ingredients (APIs) capable of forming co-amorphous systems (CAMs) was investigated. The binary systems studied were naproxen-indomethacin, naproxen-ibuprofen, naproxen-probucol, and indomethacin-paracetamol. The SLE was experimentally determined by differential scanning calorimetry. The thermograms obtained revealed that all binary mixtures investigated form eutectic systems. Melting of the initial binary crystalline mixtures and subsequent quenching lead to the formation of CAM for all binary systems and most of the compositions studied. The experimentally obtained liquidus and eutectic temperatures were compared to theoretical predictions using the perturbed-chain statistical associating fluid theory (PC-SAFT) equation of state and conductor-like screening model for real solvents (COSMO-RS), as implemented in the Amsterdam Modeling Suite (COSMO-RS-AMS). On the basis of the obtained results, the ability of these models to predict the phase diagrams for the investigated API–API binary systems was evaluated. Furthermore, the glass transition temperature (Tg) of naproxen (NAP), a compound with a high tendency to recrystallize, whose literature values are considerably scattered, was newly determined by measuring and modeling the Tg values of binary mixtures in which amorphous NAP was stabilized. Based on this analysis, erroneous literature values were identified.
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Affiliation(s)
- Alžběta Zemánková
- Department of Physical Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic; (A.Z.); (M.K.)
| | - Fatima Hassouna
- Faculty of Chemical Engineering, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic
| | - Martin Klajmon
- Department of Physical Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic; (A.Z.); (M.K.)
| | - Michal Fulem
- Department of Physical Chemistry, University of Chemistry and Technology, Prague, Technická 5, 166 28 Prague, Czech Republic; (A.Z.); (M.K.)
- Correspondence:
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113
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Ma YJ, Xiao G, Fang X, Chen T, Yan D. Leveraging Crystalline and Amorphous States of a Metal-Organic Complex for Transformation of the Photosalient Effect and Positive-Negative Photochromism. Angew Chem Int Ed Engl 2023; 62:e202217054. [PMID: 36571433 DOI: 10.1002/anie.202217054] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/21/2022] [Accepted: 12/23/2022] [Indexed: 12/27/2022]
Abstract
Uncovering differences between crystalline and amorphous states in molecular solids would both promote the understanding of their structure-property relationships, as well as inform development of multi-functional materials based on the same compound. Herein, for the first time, we report an approach to leverage crystalline and amorphous states of a zero-dimensional metal-organic complex, which exhibited negative and positive photochromism, due to the competitive chemical routes between photocycloaddition and photogenerated radicals. Furthermore, different polymorphs lead to the on/off toggling of photo-burst movement (photosalient effect), indicating the controllable light-mechanical conversion. Three demos were further constructed to support their application in information encryption and anti-counterfeiting. This work provides the proof-of-concept of a state- and polymorph-dependent photochemical route, paving an effective way for the design of new dynamically responsive systems.
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Affiliation(s)
- Yu-Juan Ma
- Beijing Key Laboratory of Energy Conversion and Storage Materials, and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Guowei Xiao
- Beijing Key Laboratory of Energy Conversion and Storage Materials, and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Xiaoyu Fang
- Beijing Key Laboratory of Energy Conversion and Storage Materials, and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Tianhong Chen
- Beijing Key Laboratory of Energy Conversion and Storage Materials, and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
| | - Dongpeng Yan
- Beijing Key Laboratory of Energy Conversion and Storage Materials, and Key Laboratory of Radiopharmaceuticals, Ministry of Education, College of Chemistry, Beijing Normal University, Beijing, 100875, P. R. China
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114
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Nguyen HT, Van Duong T, Taylor LS. Impact of Gastric pH Variations on the Release of Amorphous Solid Dispersion Formulations Containing a Weakly Basic Drug and Enteric Polymers. Mol Pharm 2023; 20:1681-1695. [PMID: 36730186 PMCID: PMC9997068 DOI: 10.1021/acs.molpharmaceut.2c00895] [Citation(s) in RCA: 14] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Enteric polymers are widely used in amorphous solid dispersion (ASD) formulations. The aim of the current study was to explore ASD failure mechanisms across a wide range of pH conditions that mimic in vivo gastric compartment variations where enteric polymers such as hydroxypropyl methylcellulose phthalate (HPMCP) and hydroxypropyl methylcellulose acetate succinate (HPMCAS) are largely insoluble. Delamanid (DLM), a weakly basic drug used to treat tuberculosis, was selected as the model compound. Both DLM free base and the edisylate salt were formulated with HPMCP, while DLM edisylate ASDs were also prepared with different grades of HPMCAS. Two-stage release testing was conducted with the gastric stage pH varied between pH 1.6 and 5.0, prior to transfer to intestinal conditions of pH 6.5. ASD particles were collected following suspension in the gastric compartment and evaluated using X-ray powder diffraction and scanning electron microscopy. Additional samples were also evaluated with polarized light microscopy. In general, ASDs with HPMCP showed improved overall release for all testing conditions, relative to ASDs with HPMCAS. ASDs with the edisylate salt likewise outperformed those with DLM free base. Impaired release for certain formulations at intestinal pH conditions was attributed to surface drug crystallization that initiated during suspension in the gastric compartment where the polymer is insoluble; crystallization appeared more extensive for HPMCAS ASDs. These findings suggest that gastric pH variations should be evaluated for ASD formulations containing weakly basic drugs and enteric polymers.
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Affiliation(s)
- Hanh Thuy Nguyen
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Tu Van Duong
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Lynne S Taylor
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
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115
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Sørensen CM, Rantanen J, Grohganz H. Compaction Behavior of Co-Amorphous Systems. Pharmaceutics 2023; 15:pharmaceutics15030858. [PMID: 36986718 PMCID: PMC10056350 DOI: 10.3390/pharmaceutics15030858] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 03/01/2023] [Accepted: 03/04/2023] [Indexed: 03/09/2023] Open
Abstract
Co-amorphous systems have been shown to be a promising strategy to address the poor water solubility of many drug candidates. However, little is known about the effect of downstream processing-induced stress on these systems. The aim of this study is to investigate the compaction properties of co-amorphous materials and their solid-state stability upon compaction. Model systems of co-amorphous materials consisting of carvedilol and the two co-formers aspartic acid and tryptophan were produced via spray drying. The solid state of matter was characterized using XRPD, DSC, and SEM. Co-amorphous tablets were produced with a compaction simulator, using varying amounts of MCC in the range of 24 to 95.5% (w/w) as a filler, and showed high compressibility. Higher contents of co-amorphous material led to an increase in the disintegration time; however, the tensile strength remained rather constant at around 3.8 MPa. No indication of recrystallization of the co-amorphous systems was observed. This study found that co-amorphous systems are able to deform plastically under pressure and form mechanically stable tablets.
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116
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Albertini B, Bertoni S, Sangiorgi S, Nucci G, Passerini N, Mezzina E. NaDES as a green technological approach for the solubility improvement of BCS class II APIs: An insight into the molecular interactions. Int J Pharm 2023; 634:122696. [PMID: 36758882 DOI: 10.1016/j.ijpharm.2023.122696] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 01/26/2023] [Accepted: 02/03/2023] [Indexed: 02/10/2023]
Abstract
Recently, Natural Deep Eutectic Solvents (NaDES) have emerged as potential solvents for boosting drug bioavailability. In this work, the mechanism of solubility enhancement of some APIs belonging to BCS class II (tolbutamide, nimesulide, domperidone and cinnarizine) in these eutectic bio-solvents was investigated in order to get deeper insights into the molecular interactions between the NaDES components and the selected drugs. Different NaDES formulations based on choline chloride, proline, solid organic acids (citric, tartaric and malic acid), sugars (glucose and xylitol) and water were prepared by mild heating (70 °C). Characterization of unloaded NaDES (pH, Karl Fisher titration, viscosity and FTIR analysis) indicated that the type of Hydrogen Bond Acceptor (HBA) and Hydrogen Bond Donor (HBD), their molar ratio as well as water amount strongly affect the extent of H-bonding interactions. Hard gelatin capsules filled with NaDES maintained their integrity until 6 months, proving that all water molecules participate in H-bond network. APIs' solubility enhancement was significant in all NaDES with respect to buffer solutions (pH 1.2 and 6.8). Analysing NaDES having Choline as HBA, it was found that the solubility of smaller molecules increased using larger HBD, while higher molecular weight APIs can be better inserted into the network formed by smaller HBD. NOE experiments demonstrated the formation of a robust supramolecular structure among the protons of choline, those of organic acid and water. In addition, 1D ROESY spectra revealed for the first time the crucial role of choline (methyl groups) in establishing hydrophobic interactions with the relative aliphatic or aromatic portion of the drugs. These data suggest the complex structure of the API-NaDES supramolecular assembly and underline that drug solubility is dependent on a balance network of H-bonds and hydrophobic interactions as well. Understanding the type of interactions between the API and NaDES is essential for their use as effective solubilisation aid.
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Affiliation(s)
- Beatrice Albertini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy.
| | - Serena Bertoni
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Stefano Sangiorgi
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Giorgia Nucci
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Nadia Passerini
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Elisabetta Mezzina
- Department of Chemistry "G. Ciamician", University of Bologna, Via San Giacomo 11, 40126 Bologna, Italy
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117
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Development of Robust Tablet Formulations with Enhanced Drug Dissolution Profiles from Centrifugally-Spun Micro-Fibrous Solid Dispersions of Itraconazole, a BCS Class II Drug. Pharmaceutics 2023; 15:pharmaceutics15030802. [PMID: 36986664 PMCID: PMC10053999 DOI: 10.3390/pharmaceutics15030802] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 02/16/2023] [Accepted: 02/22/2023] [Indexed: 03/05/2023] Open
Abstract
Fibre-based oral drug delivery systems are an attractive approach to addressing low drug solubility, although clear strategies for incorporating such systems into viable dosage forms have not yet been demonstrated. The present study extends our previous work on drug-loaded sucrose microfibres produced by centrifugal melt spinning to examine systems with high drug loading and investigates their incorporation into realistic tablet formulations. Itraconazole, a model BCS Class II hydrophobic drug, was incorporated into sucrose microfibres at 10, 20, 30, and 50% w/w. Microfibres were exposed to high relative humidity conditions (25 °C/75% RH) for 30 days to deliberately induce sucrose recrystallisation and collapse of the fibrous structure into powdery particles. The collapsed particles were successfully processed into pharmaceutically acceptable tablets using a dry mixing and direct compression approach. The dissolution advantage of the fresh microfibres was maintained and even enhanced after humidity treatment for drug loadings up to 30% w/w and, importantly, retained after compression into tablets. Variations in excipient content and compression force allowed manipulation of the disintegration rate and drug content of the tablets. This then permitted control of the rate of supersaturation generation, allowing the optimisation of the formulation in terms of its dissolution profile. In conclusion, the microfibre-tablet approach has been shown to be a viable method for formulating poorly soluble BCS Class II drugs with improved dissolution performance.
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118
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Liu K, Liu W, Dong Z, Zhang L, Li Q, Zhang R, He H, Lu Y, Wu W, Qi J. Translation of ionic liquids to be enteric nanoparticles for facilitating oral absorption of cyclosporine A. Bioeng Transl Med 2023; 8:e10405. [PMID: 36925679 PMCID: PMC10013816 DOI: 10.1002/btm2.10405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2022] [Revised: 08/12/2022] [Accepted: 08/22/2022] [Indexed: 11/11/2022] Open
Abstract
Ionic liquids (ILs) attract more and more interests in improving drug transport across membrane, including transdermal, nasal, and oral delivery. However, some drawbacks of ILs impede the application in oral drug delivery, such as rapid precipitation of poorly soluble drugs in stomach. This study aimed to employ enteric mesoporous silica nanoparticles (MSNs) to load ILs to overcome the shortcomings faced in oral administration. The choline sorbate ILs (SCILs) were synthesized by choline bicarbonate and sorbic acid and then adsorbed in mesopores of MSNs after dissolving cyclosporin A (CyA). MSNs loading SCILs and CyA were coated by Eudragit® L100 to form enteric nanoparticles. The in vitro release study showed that the CyA and SCILs released only 10% for 2 h in simulated gastric fluids but more than 90% in simulated intestinal fluid. In addition, SCILs and CyA were able to release from MSNs synchronously. After oral administration, enteric MSNs loading SCILs were capable of improving oral absorption of CyA significantly and the oral bioavailability of CyA was similar with that of oral Neoral®. In addition, the oral absorption of enteric MSNs was higher than that of nonenteric MSNs, which showed that enteric coating was necessary to ILs in oral delivery. These findings revealed great potential of translation of ILs to be enteric nanoparticles for facilitating oral absorption of CyA. It is predictable this delivery system is promising to be a platform for delivering poorly water-soluble drugs and even biologics orally.
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Affiliation(s)
- Kaiheng Liu
- Key Laboratory of Smart Drug Delivery of MOE, School of PharmacyFudan UniversityShanghaiChina
| | - Wenjuan Liu
- Key Laboratory of Smart Drug Delivery of MOE, School of PharmacyFudan UniversityShanghaiChina
| | - Zirong Dong
- Key Laboratory of Smart Drug Delivery of MOE, School of PharmacyFudan UniversityShanghaiChina
| | - Luyu Zhang
- Key Laboratory of Smart Drug Delivery of MOE, School of PharmacyFudan UniversityShanghaiChina
| | - Qiuyu Li
- Key Laboratory of Smart Drug Delivery of MOE, School of PharmacyFudan UniversityShanghaiChina
| | - Renjie Zhang
- Key Laboratory of Smart Drug Delivery of MOE, School of PharmacyFudan UniversityShanghaiChina
| | - Haisheng He
- Key Laboratory of Smart Drug Delivery of MOE, School of PharmacyFudan UniversityShanghaiChina
| | - Yi Lu
- Key Laboratory of Smart Drug Delivery of MOE, School of PharmacyFudan UniversityShanghaiChina
| | - Wei Wu
- Key Laboratory of Smart Drug Delivery of MOE, School of PharmacyFudan UniversityShanghaiChina
| | - Jianping Qi
- Key Laboratory of Smart Drug Delivery of MOE, School of PharmacyFudan UniversityShanghaiChina
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119
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Yusuf H, Meidy Nurintan Savitri O, Primaharinastiti R, Agus Syamsur Rijal M. A lyophilized-surfactant-based rutin formulation with improved physical characteristics and dissolution for oral delivery. Saudi Pharm J 2023. [DOI: 10.1016/j.jsps.2023.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023] Open
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120
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Enhancement of Solubility and Dissolution Rate Using Tailored Rapidly Dissolving Oral Films Containing Felodipine Solid Dispersion: In Vitro Characterization and Ex Vivo Studies. J Pharm Innov 2023. [DOI: 10.1007/s12247-023-09716-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/26/2023]
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121
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Neuwirth M, Kappes SK, Hartig MU, Wagner KG. Amorphous Solid Dispersions Layered onto Pellets—An Alternative to Spray Drying? Pharmaceutics 2023; 15:pharmaceutics15030764. [PMID: 36986625 PMCID: PMC10054131 DOI: 10.3390/pharmaceutics15030764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 02/13/2023] [Accepted: 02/22/2023] [Indexed: 03/03/2023] Open
Abstract
Spray drying is one of the most frequently used solvent-based processes for manufacturing amorphous solid dispersions (ASDs). However, the resulting fine powders usually require further downstream processing when intended for solid oral dosage forms. In this study, we compare properties and performance of spray-dried ASDs with ASDs coated onto neutral starter pellets in mini-scale. We successfully prepared binary ASDs with a drug load of 20% Ketoconazole (KCZ) or Loratadine (LRD) as weakly basic model drugs and hydroxypropyl-methyl-cellulose acetate succinate or methacrylic acid ethacrylate copolymer as pH-dependent soluble polymers. All KCZ/ and LRD/polymer mixtures formed single-phased ASDs, as indicated by differential scanning calorimetry, X-ray powder diffraction and infrared spectroscopy. All ASDs showed physical stability for 6 months at 25 °C/65% rH and 40 °C/0% rH. Normalized to their initial surface area available to the dissolution medium, all ASDs showed a linear relationship of surface area and solubility enhancement, both in terms of supersaturation of solubility and initial dissolution rate, regardless of the manufacturing process. With similar performance and stability, processing of ASD pellets showed the advantages of a superior yield (>98%), ready to use for subsequent processing into multiple unit pellet systems. Therefore, ASD-layered pellets are an attractive alternative in ASD-formulation, especially in early formulation development at limited availability of drug substance.
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122
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Zhang J, Zhang Y, Wang H, Chen W, Lu A, Li H, Kang L, Wu C. Solubilisation and Enhanced Oral Absorption of Curcumin Using a Natural Non-Nutritive Sweetener Mogroside V. Int J Nanomedicine 2023; 18:1031-1045. [PMID: 36855540 PMCID: PMC9968502 DOI: 10.2147/ijn.s395266] [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: 10/28/2022] [Accepted: 02/02/2023] [Indexed: 02/25/2023] Open
Abstract
Background Curcumin (CUR) is a functional ingredient from the spice turmeric. It has attracted considerable attention recently, owing to its diverse biological activities. However, curcumin has low water solubility, which limited its applications. Some sugar molecules were found to be able to solubilise poorly water-soluble compounds by forming micelles in aqueous solutions. Purpose To improve the water solubility and oral absorption of CUR, using a non-nutritive natural sweetener, namely, Mogroside V (Mog-V). Methods A solid dispersion of CUR in Mog-V was prepared using a solvent evaporation method. The solid dispersion was characterised by using X-ray diffraction and differential scanning calorimetry. The solid dispersion can dissolve in water to form micelles with a diameter of ~160 nm, which were characterised by using dynamic light scattering. To find out the mechanism of solubilisation, the aggregation behaviour of Mog-V molecules in aqueous solution was investigated using nuclear magnetic resonance spectroscopy. Finally, oral absorption of CUR in the solid dispersion was evaluated using a rodent model. Results A solid dispersion was formed in a ratio of 1 CUR to 10 Mog-V by weight. Upon dissolution into water, CUR laden micelles formed via self-assembly of Mog-V molecules, which increased the solubility of CUR by nearly 6000 times compared with pure CUR crystals. In rats, the solid dispersion increased the oral absorption of CUR by 29 folds, compared with CUR crystals. In terms of solubilisation mechanism, it was found that Mog-V self-assembled into micelles with a core-shell structure and CUR molecules were incorporated into the hydrophobic core of the Mog-V micelles. Conclusion Mog-V can form a solid dispersion with CUR. Upon dissolution in water, the Mog-V in the solid dispersion can self-assemble into micelles, which solubilise CUR and increase its oral absorption.
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Affiliation(s)
- Junying Zhang
- Department of TCMs Pharmaceuticals, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Yiwen Zhang
- Department of TCMs Pharmaceuticals, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Hufang Wang
- Department of TCMs Pharmaceuticals, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Wenlin Chen
- Department of TCMs Pharmaceuticals, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Aiyu Lu
- Department of TCMs Pharmaceuticals, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Hailiang Li
- Department of TCMs Pharmaceuticals, China Pharmaceutical University, Nanjing, People’s Republic of China
| | - Lifeng Kang
- School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Pharmacy and Bank Building A15, Camperdown, Australia,Correspondence: Lifeng Kang, Email
| | - Chunyong Wu
- Department of Pharmaceutical Analysis, China Pharmaceutical University, Nanjing, People’s Republic of China,Chunyong Wu, Email
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123
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Myślińska M, Stocker MW, Ferguson S, Healy AM. A Comparison of Spray-Drying and Co-Precipitation for the Generation of Amorphous Solid Dispersions (ASDs) of Hydrochlorothiazide and Simvastatin. J Pharm Sci 2023:S0022-3549(23)00064-3. [PMID: 36805392 DOI: 10.1016/j.xphs.2023.02.012] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 02/13/2023] [Accepted: 02/13/2023] [Indexed: 02/19/2023]
Abstract
Co-processing of APIs, the practice of creating multi-component APIs directly in chemical processing facilities used to make drug substance, is gaining increased attention with a view to streamlining manufacturing, improving supply chain robustness and accessing enhanced product attributes in terms of stability and bioavailability. Direct co-precipitation of amorphous solid dispersions (ASDs) at the final step of chemical processing is one such example of co-processing. The purpose of this work was to investigate the application of different advanced solvent-based processing techniques - direct co-precipitation (CP) and the benchmark well-established spray-drying (SD) process - to the production of ASDs comprised of a drug with a high Tg (hydrochlorothiazide, HCTZ) or a low Tg (simvastatin, SIM) molecularly dispersed in a PVP/VA 64 or Soluplus® matrix. ASDs of the same composition were manufactured by the two different methods and were characterised using powder X-ray diffraction (PXRD), modulated differential scanning calorimetry (mDSC), attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) and scanning electron microscopy (SEM). Both methods produced ASDs that were PXRD amorphous, with some differences, depending on the process used, in glass transition temperature and particle size distribution. Irrespective of manufacturing method used, all ASDs remained PXRD amorphous when subjected to high relative humidity conditions (75% RH, 25°C) for four weeks, although changes in the colour and physical characteristics were observed on storage for spray-dried systems with SIM and PVP/VA 64 copolymer. The particle morphology differed for co-precipitated compared to spray dried systems, with powder generated by the former process being comprised of more irregularly shaped particles of larger particle size when compared to the equivalent spray-dried systems which may enable more streamlined drug product processes to be used for CP materials. These differences may have implications in downstream drug product processing. A limitation identified when applying the solvent/anti-solvent co-precipitation method to SIM was the high antisolvent to solvent ratios required to effect the precipitation process. Thus, while similar outcomes may arise for both co-precipitation and spray drying processes in terms of ASD critical quality attributes, practical implications of applying the co-precipitation method and downstream processability of the resulting ASDs should be considered when choosing one solvent-based ASD production process over another.
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Affiliation(s)
- Monika Myślińska
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute, Trinity College Dublin, Dublin 2, Ireland; SSPC, The Science Foundation Ireland Research Centre for Pharmaceuticals, Ireland; EPSRC-SFI Centre for Doctoral Training in Transformative Pharmaceutical Technologies, Ireland
| | - Michael W Stocker
- School of Chemical and Bioprocess Engineering, University College Dublin, Dublin 4, Ireland; SSPC, The Science Foundation Ireland Research Centre for Pharmaceuticals, Ireland
| | - Steven Ferguson
- School of Chemical and Bioprocess Engineering, University College Dublin, Dublin 4, Ireland; SSPC, The Science Foundation Ireland Research Centre for Pharmaceuticals, Ireland; EPSRC-SFI Centre for Doctoral Training in Transformative Pharmaceutical Technologies, Ireland; I-Form, The SFI Research Centre for Advanced Manufacturing, School of Chemical and Bioprocess Engineering, University College Dublin, Dublin 4, Ireland; National Institute for Bioprocess Research and Training, Dublin, Ireland
| | - Anne Marie Healy
- School of Pharmacy and Pharmaceutical Sciences, Panoz Institute, Trinity College Dublin, Dublin 2, Ireland; SSPC, The Science Foundation Ireland Research Centre for Pharmaceuticals, Ireland; EPSRC-SFI Centre for Doctoral Training in Transformative Pharmaceutical Technologies, Ireland.
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124
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Iyer J, Barbosa M, Saraf I, Pinto JF, Paudel A. Mechanoactivation as a Tool to Assess the Autoxidation Propensity of Amorphous Drugs. Mol Pharm 2023; 20:1112-1128. [PMID: 36651656 DOI: 10.1021/acs.molpharmaceut.2c00841] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Mechanoactivation has attracted considerable attention in the pharmaceutical sciences due to its ability to generate amorphous materials and solid-state synthetic products without the use of solvent. Although some studies have reported drug degradation during milling, no studies have systematically investigated the use of mechanoactivation in predicting drug degradation in the solid state. Thus, this work explores the autoxidation of drugs in the solid state by comilling amorphous mifepristone (MFP):polyvinylpyrrolidone vinyl acetate (PVPVA) and amorphous olanzapine (OLA):PVPVA. MFP was amorphized by ball milling and OLA by quench cooling techniques. Subsequently, comilling the amorphous drugs in the presence of a 10-fold weight ratio of PVPVA (the excipient containing reactive free radicals) was performed at several milling frequencies to identify the kinetics of mechano-autoxidation over milling durations. Overall, milling led to the degradation of up to 5% drug in the solid state. The autoxidation mechanism was confirmed by performing a stress study in the solution at 50 °C for 5 h, by using a 10 mM azo-bis(isobutyronitrile) (AIBN) as a stressing agent. By deconvoluting the effect of milling frequency and the energy on the extent and kinetics of milling-induced autoxidation of amorphous drugs, it was possible to fit an extended Arrhenius model that allowed extrapolation of mechanoactivated degradation rates (Km) to zero milling frequencies. Further, the autoxidation rates of drugs stored at high temperatures were observed to follow an Arrhenius behavior. A good degree of agreement was observed between the model predictions obtained by mechanoactivation (Km) to the reaction rates observed under accelerated temperatures. Additionally, the impact of adding an antioxidant (e.g., butylated hydroxytoluene) to the mixture during comilling was also examined. This study can be helpful in evaluating the stability of amorphous solids stored in accelerated (non-hermetic) conditions, in screening solid-state autoxidation propensity of drugs, and for the rational selection of antioxidants.
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Affiliation(s)
- Jayant Iyer
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz 8010, Austria
| | - Matilde Barbosa
- iMed.ULisboa, Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa P-1649-003, Portugal
| | - Isha Saraf
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz 8010, Austria
| | - João F Pinto
- iMed.ULisboa, Research Institute for Medicines, Faculdade de Farmácia, Universidade de Lisboa, Av. Prof. Gama Pinto, Lisboa P-1649-003, Portugal
| | - Amrit Paudel
- Research Center Pharmaceutical Engineering GmbH (RCPE), Graz 8010, Austria.,Graz University of Technology, Institute of Process and Particle Engineering, Graz 8010, Austria
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125
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Andrews GP, Qian K, Jacobs E, Jones DS, Tian Y. High drug loading nanosized amorphous solid dispersion (NASD) with enhanced in vitro solubility and permeability: Benchmarking conventional ASD. Int J Pharm 2023; 632:122551. [PMID: 36581107 DOI: 10.1016/j.ijpharm.2022.122551] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 12/06/2022] [Accepted: 12/23/2022] [Indexed: 12/27/2022]
Abstract
Through liquid-liquid phase separation (LLPS), it is possible to generate drug-rich nanoparticles during the dissolution of conventional amorphous solid dispersions (ASDs). These self-generated nanoparticles may improve the oral absorption of poorly water-soluble drugs by enhancing the drug's apparent solubility and effective membrane permeability. However, due to the high concentration threshold required for LLPS, conventional ASDs that can consistently generate drug-rich nanoparticles during dissolution are rare. More importantly, the quality of these meta-stable drug-rich nanoparticles is hard to control during dissolution, leading to inconsistency in formulation performances. This work has described a continuous twin-screw extrusion process capable of producing nanosized ASD (NASD) formulations that can offer better solubility and permeability enhancements over conventional ASD formulations. Two polymeric carriers, polyvinylpyrrolidone-co-vinyl acetate (PVPVA) and hydroxypropyl methylcellulose acetate succinate (HPMCAS), with a model hydrophobic drug celecoxib (BCS II), were formulated into both ASD and NASD formulations. Compared to the conventional ASD formulation, the prefabricated NASD (sizes ranging between 40 and 200 nm) embedded within a polyol matrix can be rapidly dispersed into a nanoparticle suspension in the presence of aqueous media. The resulting NASDs achieved drug loadings up to 80 % w/w and a maximum of 98 % encapsulation efficiency. Because of the TSE platform's high drug-loading capacity and high scalability, the developed method may be useful for continuously producing personalized nanomedicines.
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Affiliation(s)
- Gavin P Andrews
- School of Pharmacy, Queen's University Belfast, BT9 7BL, United Kingdom
| | - Kaijie Qian
- School of Pharmacy, Queen's University Belfast, BT9 7BL, United Kingdom
| | - Esther Jacobs
- School of Pharmacy, Queen's University Belfast, BT9 7BL, United Kingdom
| | - David S Jones
- School of Pharmacy, Queen's University Belfast, BT9 7BL, United Kingdom
| | - Yiwei Tian
- School of Pharmacy, Queen's University Belfast, BT9 7BL, United Kingdom.
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126
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Stegemann S, Moreton C, Svanbäck S, Box K, Motte G, Paudel A. Trends in oral small-molecule drug discovery and product development based on product launches before and after the Rule of Five. Drug Discov Today 2023; 28:103344. [PMID: 36442594 DOI: 10.1016/j.drudis.2022.103344] [Citation(s) in RCA: 19] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/28/2022] [Accepted: 09/01/2022] [Indexed: 11/26/2022]
Abstract
In 1997, the 'Rule of Five' (Ro5) suggested physicochemical limitations for orally administered drugs, based on the analysis of chemical libraries from the early 1990s. In this review, we report on the trends in oral drug product development by analyzing products launched between 1994 and 1997 and between 2013 and 2019. Our analysis confirmed that most new oral drugs are within the Ro5 descriptors; however, the number of new drug products of drugs with molecular weight (MW) and calculated partition coefficient (clogP) beyond the Ro5 has slightly increased. Analysis revealed that there is no single scientific or technological reason for this trend, but that it likely results from incremental advances are being made in molecular biology, target diversity, drug design, medicinal chemistry, predictive modeling, drug metabolism and pharmacokinetics, and drug delivery.
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Affiliation(s)
- Sven Stegemann
- Institute for Process and Particle Engineering, Graz University of Technology, Inffeldgasse 13, 8010 Graz, Austria.
| | | | - Sami Svanbäck
- The Solubility Company Ltd, Viikinkaari 4, 00790 Helsinki, Finland
| | - Karl Box
- Pion Inc. (UK) Ltd, Forest Row, UK
| | - Geneviève Motte
- JEN Pharma Consulting, 182 Rue Henri Latour, 1450 Chastre, Belgium
| | - Amrit Paudel
- Institute for Process and Particle Engineering, Graz University of Technology, Inffeldgasse 13, 8010 Graz, Austria; Research Center Pharmaceutical Engineering GmbH, Inffeldgasse 13, 8010 Graz, Austria
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127
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Mahmood T, Sarfraz RM, Ismail A, Ali M, Khan AR. Pharmaceutical Methods for Enhancing the Dissolution of Poorly Water-Soluble Drugs. Assay Drug Dev Technol 2023; 21:65-79. [PMID: 36917562 DOI: 10.1089/adt.2022.119] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
Low water solubility is the main hindrance in the growth of pharmaceutical industry. Approximately 90% of newer molecules under investigation for drugs and 40% of novel drugs have been reported to have low water solubility. The key and thought-provoking task for the formulation scientists is the development of novel techniques to overcome the solubility-related issues of these drugs. The main intention of present review is to depict the conventional and novel strategies to overcome the solubility-related problems of Biopharmaceutical Classification System Class-II drugs. More than 100 articles published in the last 5 years were reviewed to have a look at the strategies used for solubility enhancement. pH modification, salt forms, amorphous forms, surfactant solubilization, cosolvency, solid dispersions, inclusion complexation, polymeric micelles, crystals, size reduction, nanonization, proliposomes, liposomes, solid lipid nanoparticles, microemulsions, and self-emulsifying drug delivery systems are the various techniques to yield better bioavailability of poorly soluble drugs. The selection of solubility enhancement technique is based on the dosage form and physiochemical characteristics of drug molecules.
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Affiliation(s)
- Tahir Mahmood
- Department of Pharmaceutics, College of Pharmacy, University of Sargodha, Sargodha, Pakistan
| | - Rai M Sarfraz
- Department of Pharmaceutics, College of Pharmacy, University of Sargodha, Sargodha, Pakistan
| | - Asmara Ismail
- Specialized Healthcare and Medical Education Department, Government of Punjab, Lahore, Pakistan
| | - Muhammad Ali
- Specialized Healthcare and Medical Education Department, Government of Punjab, Lahore, Pakistan
| | - Abdur Rauf Khan
- Specialized Healthcare and Medical Education Department, Government of Punjab, Lahore, Pakistan
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128
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Wu M, Gao F, Li X, Guo J, Wang T, Zhang F. Study on the solubilization effect of 7-ethyl-10-hydroxycamptothecin based on molecular docking and molecular dynamics simulation. J Mol Model 2023; 29:58. [PMID: 36715793 DOI: 10.1007/s00894-023-05455-1] [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: 06/21/2022] [Accepted: 01/16/2023] [Indexed: 01/31/2023]
Abstract
CONTEXT With the continuous improvement of anticancer drugs, the condition of patients has been controlled to a certain extent, but the problem that still needs to be urgently solved is that most anticancer drug candidates' solubility is low. On the one hand, the low solubility of anticancer drugs may lead to a decrease in the absorption rate of anticancer drugs, poor treatment effect, and even death in severe cases. On the other hand, it will also lead to a waste of medical resources. At the same time, the rapid and scientific screening of ideal anticancer drugs has become a difficult problem that researchers have to face in the research process. In this study, we found two kinds of SN38-ligand complexes that solubilize 7-ethyl-10-hydroxycamptothecin (SN38) through molecular docking and molecular dynamics simulation methods. This process not only provided valuable information on improving the solubility of SN38, but also helped to discover effective potential complexes that solubilize SN38 quickly and scientifically. METHODS The interaction of the SN38 with folic acid and isoproterenol hydrochloride was rapidly determined by molecular docking and molecular dynamics simulation methods. We used Discovery Studio software to perform molecular docking. And then, we used Gromacs 2019.3 software to perform molecular dynamics, analyzing and comparing the hydrogen bonds, solvent-accessible surface areas, energies, and so on between SN38 and SN38-ligand complexes. And the force field adopted the Gromos 54a7.
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Affiliation(s)
- Min Wu
- Biomedical Nanocenter, School of Life Sciences, Inner Mongolia Agricultural University, 29 East Erdos Street, Hohhot, 010011, China
| | - Feng Gao
- Biomedical Nanocenter, School of Life Sciences, Inner Mongolia Agricultural University, 29 East Erdos Street, Hohhot, 010011, China
| | - Xiaofang Li
- Biomedical Nanocenter, School of Life Sciences, Inner Mongolia Agricultural University, 29 East Erdos Street, Hohhot, 010011, China
| | - Jun Guo
- Terahertz Technology Innovation Research Institute, Shanghai Key Laboratory of Modern Optical System, Terahertz Science Cooperative Innovation Center, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China
| | - Tegexibaiyin Wang
- Pharmacy Laboratory, Inner Mongolia International Mongolian Hospital, 83 Daxuedong Road, Hohhot, 010065, China.
| | - Feng Zhang
- Biomedical Nanocenter, School of Life Sciences, Inner Mongolia Agricultural University, 29 East Erdos Street, Hohhot, 010011, China. .,Terahertz Technology Innovation Research Institute, Shanghai Key Laboratory of Modern Optical System, Terahertz Science Cooperative Innovation Center, University of Shanghai for Science and Technology, 516 Jungong Road, Shanghai, 200093, China. .,Pharmacy Laboratory, Inner Mongolia International Mongolian Hospital, 83 Daxuedong Road, Hohhot, 010065, China. .,Wenzhou Institute, University of Chinese Academy of Sciences, 16 Xinsan Road, Wenzhou, 325001, China. .,State Key Laboratory of Respiratory Disease, Guangzhou Institute of Oral Disease, Stomatology Hospital, Department of Biomedical Engineering, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, China.
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129
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Wu H, Wang Z, Zhao Y, Gao Y, Zhang H, Wang L, Wang Z, Han J. Effect of Span 20 Feeding Zone in the Twin Screw Extruder on the Properties of Amorphous Solid Dispersion of Ritonavir. Pharmaceutics 2023; 15:pharmaceutics15020441. [PMID: 36839764 PMCID: PMC9960583 DOI: 10.3390/pharmaceutics15020441] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Revised: 01/18/2023] [Accepted: 01/27/2023] [Indexed: 01/31/2023] Open
Abstract
A ternary amorphous solid dispersion (ASD) system consisting of drug/polymer/surfactant is receiving increased attention to improve the oral bioavailability of poorly water-soluble drugs. The effect of polymers has been extensively studied, while the impact of surfactants has not yet to be studied to the same extent. Challenging questions to be answered are whether the surfactants should be added with the drug or separately and the resulting differences between the two operating processes. By adjusting the liquid feeding zone for Span 20 in the hot-melt twin screw extruder equipment, we investigated the effect of Span 20 on the properties of the polyvinylpyrrolidone/vinyl acetate (PVPVA)-based ASD formulations of ritonavir. We found that with the delayed feeding positions of Span 20 in the twin screw extruder, the ability of the ternary ASDs to maintain the supersaturation of the milled extrudates was observed to be significantly enhanced. Furthermore, adding surfactant after a thorough mixing of polymer and drug could decrease the molecular mobility of ternary ASD formulations. In addition, the effects of Span 20 on the complex viscosity and structure of PVPVA were also investigated. The delayed addition of Span 20 could improve the complex viscosity of PVPVA, thus leading to the drug precipitation inhibition. In conclusion, the delayed addition of Span 20 in the twin screw extruder and prolonging the mixing time of the drug and polymer may be critical to the maintenance of supersaturation.
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Affiliation(s)
- Hengqian Wu
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
- Institute of BioPharmaceutical Research, Liaocheng University, Liaocheng 252000, China
| | - Zhengping Wang
- Institute of BioPharmaceutical Research, Liaocheng University, Liaocheng 252000, China
- Liaocheng High-Tech Biotechnology Co., Ltd., Liaocheng 252059, China
| | - Yanna Zhao
- Institute of BioPharmaceutical Research, Liaocheng University, Liaocheng 252000, China
| | - Yan Gao
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Heng Zhang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Lili Wang
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
| | - Zhe Wang
- Anhui Biochem Biopharmaceutical Co., Ltd., Hefei 230088, China
| | - Jun Han
- School of Chemistry and Chemical Engineering, University of Jinan, Jinan 250022, China
- Institute of BioPharmaceutical Research, Liaocheng University, Liaocheng 252000, China
- Liaocheng High-Tech Biotechnology Co., Ltd., Liaocheng 252059, China
- Correspondence: ; Tel.: +86-0635-8239136
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130
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Fan Y, Castleberry S. High-throughput kinetic turbidity analysis for determination of amorphous solubility and excipient screening for amorphous solid dispersions. Int J Pharm 2023; 631:122495. [PMID: 36526147 DOI: 10.1016/j.ijpharm.2022.122495] [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: 10/08/2022] [Revised: 12/06/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022]
Abstract
Many poorly water-soluble active pharmaceutical ingredients (APIs) rely on supersaturating formulations, such as amorphous solid dispersions (ASDs), to enhance oral bioavailability. ASDs kinetically trap amorphous solid drugs within polymer excipient matrices to maintain the amorphous drug states. The maximum solution concentration of the API in these formulations is known as the amorphous solubility. In early drug development with scarce material and time, high-throughput approaches to measuring amorphous solubility and screening excipient effects on crystallization risk offer significant benefits to preclinical formulation scientists. Here, we developed a high-throughput screening (HTS) workflow to quantify amorphous solubility and screen ASD excipients by automated kinetic turbidity analysis. Testing 20 model APIs with a wide range of biorelevant solubility, we demonstrated their apparent amorphous solubility determined by the HTS approach strongly correlated with quantification results using conventional liquid chromatography; while the real-time analysis significantly saved analytical time and experimental efforts. Furthermore, kinetic turbidity profiles elucidated distinct excipient effects on the precipitation process of APIs. These results were successfully translated to dissolution and precipitation behaviors of ASD formulations composed of the tested polymers. The high-throughput kinetic turbidity workflow presents a facile and information-rich approach for amorphous solubility screenings against excipients, and helps guide enabling formulation development.
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Affiliation(s)
- Yuchen Fan
- Small Molecule Pharmaceutical Sciences, Research and Early Development, Genentech Inc. 1 DNA Way, South San Francisco, CA 94080, USA
| | - Steven Castleberry
- Small Molecule Pharmaceutical Sciences, Research and Early Development, Genentech Inc. 1 DNA Way, South San Francisco, CA 94080, USA.
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131
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Orodispersible Films-Current State of the Art, Limitations, Advances and Future Perspectives. Pharmaceutics 2023; 15:pharmaceutics15020361. [PMID: 36839683 PMCID: PMC9965071 DOI: 10.3390/pharmaceutics15020361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/04/2023] [Accepted: 01/17/2023] [Indexed: 01/24/2023] Open
Abstract
Orodispersible Films (ODFs) are drug delivery systems manufactured with a wide range of methods on a big scale or for customized medicines and small-scale pharmacy. Both ODFs and their fabrication methods have certain limitations. Many pharmaceutical companies and academic research centers across the world cooperate in order to cope with these issues and also to find new formulations for a wide array of APIs what could make their work profitable for them and beneficial for patients as well. The number of pending patent applications and granted patents with their innovative approaches makes the progress in the manufacturing of ODFs unquestionable. The number of commercially available ODFs is still growing. However, some of them were discontinued and are no longer available on the markets. This review aims to summarize currently marketed ODFs and those withdrawn from sale and also provides an insight into recently published studies concerning orodispersible films, emphasizing of utilized APIs. The work also highlights the attempts of scientific communities to overcome ODF's manufacturing methods limitations.
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132
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Song D, Xie C, Yang R, Ma A, Zhao H, Zou F, Zhang X, Zhao X. An application of citric acid as a carrier for solid dispersion to improve the dissolution and uric acid-lowering effect of kaempferol. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2023. [DOI: 10.1515/ijfe-2022-0214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Abstract
Kaempferol (KPF) is a flavonoid compound, which has a variety of pharmacological activities, and widely exists in daily diet. However, its application is limited due to poor solubility. Citric acid (CA) is a common food additive with high solubility. In this study, solid dispersion (SD) was prepared with CA as the carrier to improve the solubility of KPF. KPF-CA-SD (weight ratio 1:20) was obtained by ultrasonic for 20 min at 40 °C. The in vitro dissolution of KPF in SD was increased from about 50% to more than 80%. The physicochemical characterizations were analyzed by X-ray diffraction, differential scanning calorimetry, Fourier transform infrared spectroscopy, and scanning electron microscope. In hyperuricemia mice, KPF-SD (equivalent to 100 mg/kg KPF) can effectively reduce serum uric acid and exert nephroprotective effects. In conclusion, the preparation of SD with CA might provide a safe and effective selection to facilitate application of KPF in food and medicine.
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Affiliation(s)
- Danni Song
- School of Traditional Chinese Material Medica , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Changqing Xie
- Faculty of Functional Food and Wine , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Rong Yang
- Faculty of Functional Food and Wine , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Aijinxiu Ma
- Faculty of Functional Food and Wine , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Honghui Zhao
- Faculty of Functional Food and Wine , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Fengmao Zou
- School of Traditional Chinese Material Medica , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Xiangrong Zhang
- Faculty of Functional Food and Wine , Shenyang Pharmaceutical University , Shenyang 110016 , China
| | - Xu Zhao
- Faculty of Functional Food and Wine , Shenyang Pharmaceutical University , Shenyang 110016 , China
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133
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Pöstges F, Kayser K, Appelhaus J, Monschke M, Gütschow M, Steinebach C, Wagner KG. Solubility Enhanced Formulation Approaches to Overcome Oral Delivery Obstacles of PROTACs. Pharmaceutics 2023; 15:pharmaceutics15010156. [PMID: 36678785 PMCID: PMC9863516 DOI: 10.3390/pharmaceutics15010156] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 12/23/2022] [Accepted: 12/30/2022] [Indexed: 01/04/2023] Open
Abstract
PROteolysis TArgeting Chimaeras (PROTACs) offer new opportunities in modern medicine by targeting proteins that are undruggable to classic inhibitors. However, due to their hydrophobic structure, PROTACs typically suffer from low solubility, and oral bioavailability remains challenging. At the same time, due to their investigative state, the drug supply is meager, leading to limited possibilities in terms of formulation development. Therefore, we investigated the solubility enhancement employing mini-scale formulations of amorphous solid dispersions (ASDs) and liquisolid formulations of the prototypic PROTAC ARCC-4. Based on preliminary supersaturation testing, HPMCAS (L Grade) and Eudragit® L 100-55 (EL 100-55) were demonstrated to be suitable polymers for supersaturation stabilization of ARCC-4. These two polymers were selected for preparing ASDs via vacuum compression molding (VCM), using drug loads of 10 and 20%, respectively. The ASDs were subsequently characterized with respect to their solid state via differential scanning calorimetry (DSC). Non-sink dissolution testing revealed that the physical mixtures (PMs) did not improve dissolution. At the same time, all ASDs enabled pronounced supersaturation of ARCC-4 without precipitation for the entire dissolution period. In contrast, liquisolid formulations failed in increasing ARCC-4 solubility. Hence, we demonstrated that ASD formation is a promising principle to overcome the low solubility of PROTACs.
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Affiliation(s)
- Florian Pöstges
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Kevin Kayser
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Jan Appelhaus
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Marius Monschke
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Michael Gütschow
- Pharmaceutical & Medicinal Chemistry, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany
| | - Christian Steinebach
- Pharmaceutical & Medicinal Chemistry, University of Bonn, An der Immenburg 4, 53121 Bonn, Germany
- Correspondence: (C.S.); (K.G.W.); Tel.: +49-228-73-2308 (C.S.); +49-228-73-5271 (K.G.W.)
| | - Karl G. Wagner
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
- Correspondence: (C.S.); (K.G.W.); Tel.: +49-228-73-2308 (C.S.); +49-228-73-5271 (K.G.W.)
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134
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Gao D, Zhu D, Zhou X, Dong S, Chen Y. Inhomogeneous Phase Significantly Reduces Oral Bioavailability of Felodipine/PVPVA Amorphous Solid Dispersion. Mol Pharm 2023; 20:409-418. [PMID: 36529939 DOI: 10.1021/acs.molpharmaceut.2c00695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Inhomogeneity is a key factor that significantly influences the dissolution behavior of amorphous solid dispersion (ASD). However, the underlying mechanisms of the effects of inhomogeneous phase on the dissolution characteristics as well as the bioavailability of ASDs are still unclear. In this study, two types of felodipine/PVPVA based ASDs with 30 wt % drug loading but different homogeneity were prepared: homogeneous "30 wt % ASD" prepared by spray drying, as well as inhomogeneous "30 wt % PM" prepared by physically mixing the sprayed dried 70 wt % ASD with PVPVA. We aimed to investigate (1) drug-polymer interaction mechanism and "apparent" interaction strength within the two ASDs and (2) dissolution mechanism as well as in vivo performance of the two ASDs. DSC thermogram revealing a single Tg in 30 wt % ASD confirmed its homogeneous phase. 1H NMR, FT-IR, and DVS studies collectively proved that strong hydrogen bonding interactions formed between felodipine and PVPVA in ASDs. Moreover, homogeneous "30 wt % ASD" has more numbers of interacting drug-polymer pairs, and thus exhibits stronger "apparent" interaction strength comparing with that of inhomogeneous "30 wt % PM". Unexpectedly,in the in vitro dissolution studies, inhomogeneous "30 wt % PM" showed much faster dissolution and also generated drug concentration ∼4.4 times higher than that of homogeneous "30 wt % ASD". However, drug precipitate recrystallized much slower in homogeneous "30 wt % ASD", presumably because much more polymer coprecipitated with amorphous drug in this system, which helps inhibiting drug crystallization. Surprisingly, homogeneous "30 wt % ASD" showed a significantly higher bioavailability in the in vivo pharmacokinetic studies, with the maximum plasma concentrations (Cmax) and the area under the curve (AUC) values of about 2.7 and 2.3 times higher than those of inhomogeneous "30 wt % PM". The above findings indicated that the amorphous state of drug precipitate contributes significantly to increase bioavailability of ASDs, while traditional in vitro dissolution studies, for instance, if we only compare the dissolved drug in solution or the capability of an ASD to generate supersaturation, are inadequate to predict in vivo performance of ASDs. In conclusion, the phase behavior of ASDs directly impact the formation of drug-polymer interaction, which controls not only drug supersaturation in solution but also drug crystallization in precipitate, and ultimately affect the in vivo performance of ASDs.
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Affiliation(s)
- Di Gao
- School of Pharmacy, Minzu University of China, 100081 Beijing, China
| | - Dan Zhu
- School of Pharmacy, Minzu University of China, 100081 Beijing, China
| | - Xue Zhou
- Chengdu Institute of Biology, Chinese Academy of Sciences, 610000 Chengdu, China
| | - Shuai Dong
- School of Pharmacy, Minzu University of China, 100081 Beijing, China
| | - Yuejie Chen
- School of Pharmacy, Minzu University of China, 100081 Beijing, China.,Key Laboratory of Mass Spectrometry Imaging and Metabolomics (Minzu University of China), State Ethnic Affairs Commission, 100081 Beijing, China
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135
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Shi F, Li R, Wang W, Yu X, Zhu F, Huang Y, Wang J, Zhang Z. Carboxymethyl starch as a solid dispersion carrier to enhance the dissolution and bioavailability of piperine and 18 β-glycyrrhetinic acid. Drug Dev Ind Pharm 2023; 49:30-41. [PMID: 36803327 DOI: 10.1080/03639045.2023.2182120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
OBJECTIVE To investigate the applicability of carboxymethyl starch (CMS) as a carrier to prepare solid dispersions (SDs) of piperine (PIP) and 18β-glycyrrhetinic acid (β-GA) (PIP-CMS and β-GA-CMS SDs) and to explore the influence of drug properties on carrier selection. SIGNIFICANCE The low oral bioavailability of natural therapeutic molecules, including PIP and β-GA, severely restricts their pharmaceutical applications. Moreover, CMS, a natural polymer, is rarely reported as a carrier for SDs. METHODS PIP-CMS and β-GA-CMS SDs were prepared using the solvent evaporation method. Differential scanning calorimetry (DSC), X-ray powder diffraction (XRPD), Fourier transform infrared (FT-IR) spectroscopy, and scanning electron microscopy (SEM) were used for formulation characterization. Additionally, drug release characteristics were investigated. RESULTS In vitro dissolution studies showed that the dissolutions of PIP-CMS and β-GA-CMS SDs were 1.90-2.04 and 1.97-2.22 times higher than pure PIP and β-GA, respectively, at a drug:polymer ratio of 1:6. DSC, XRPD, FT-IR, and SEM analyses confirmed the formation of SDs in their amorphous states. Significant improvements in Cmax and AUC0-24 h of PIP-CMS and β-GA-CMS SDs (17.51 ± 8.15 μg/mL and 210.28 ± 117.13 μg·h/mL, respectively) and (32.17 ± 9.45 μg/mL and 165.36 ± 38.75 μg·h/mL, respectively) were observed in the pharmacokinetic study. Compared with weakly acidic β-GA, loading weakly basic PIP seemed to have a profound effect on stability through intermolecular forces. CONCLUSIONS Our findings showed CMS could be a promising carrier for SDs, and loading weakly basic drug may be more suitable, especially in binary SDs system.
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Affiliation(s)
- Fanli Shi
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- School of Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Ruilong Li
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Key Laboratory of Oral Drug Delivery System of Chinese Meteria Medica of State Administration of Traditional Chinese Medicine, Jiangsu Branch of China Academy of Chinese Medical Science, Nanjing, China
| | - Wenjing Wang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Key Laboratory of Oral Drug Delivery System of Chinese Meteria Medica of State Administration of Traditional Chinese Medicine, Jiangsu Branch of China Academy of Chinese Medical Science, Nanjing, China
| | - Xiangyu Yu
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Key Laboratory of Oral Drug Delivery System of Chinese Meteria Medica of State Administration of Traditional Chinese Medicine, Jiangsu Branch of China Academy of Chinese Medical Science, Nanjing, China
| | - Fenxia Zhu
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Key Laboratory of Oral Drug Delivery System of Chinese Meteria Medica of State Administration of Traditional Chinese Medicine, Jiangsu Branch of China Academy of Chinese Medical Science, Nanjing, China
| | - Yiping Huang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Key Laboratory of Oral Drug Delivery System of Chinese Meteria Medica of State Administration of Traditional Chinese Medicine, Jiangsu Branch of China Academy of Chinese Medical Science, Nanjing, China
| | - Jing Wang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Key Laboratory of Oral Drug Delivery System of Chinese Meteria Medica of State Administration of Traditional Chinese Medicine, Jiangsu Branch of China Academy of Chinese Medical Science, Nanjing, China
| | - Zhenhai Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, China
- Key Laboratory of Oral Drug Delivery System of Chinese Meteria Medica of State Administration of Traditional Chinese Medicine, Jiangsu Branch of China Academy of Chinese Medical Science, Nanjing, China
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136
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Considerations in the Development of Physically Stable High Drug Load API- Polymer Amorphous Solid Dispersions in the Glassy State. J Pharm Sci 2023; 112:8-18. [PMID: 35948156 DOI: 10.1016/j.xphs.2022.08.007] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 08/04/2022] [Accepted: 08/04/2022] [Indexed: 02/05/2023]
Abstract
In this Commentary, the authors expand on their earlier studies of the solid-state long-term isothermal crystallization of amorphous API from the glassy state in amorphous solid dispersions, and focus on the effects of polymer concentration, and its implications for producing high load API doses with minimum polymer concentration. After presenting an overview of the various mechanistic factors which influence the ability of polymers to inhibit API crystallization, including the chemical structure of the polymer relative to the API, the nature and strength of API-polymer noncovalent interactions, polymer molecular weight, impact on primary diffusive molecular mobility, as well as on secondary motions in the bulk and surface phases of the glass, we consider in more detail, the effects of polymer concentration. Here, we examine the factors that appear to allow relatively low polymer concentrations, i.e., less than 10%w/w polymer, to greatly reduce crystallization, including a focus on the heterogeneous structure of the glassy state, and the possible spatial distribution and concentration of polymer in certain key regions of the glass. This is followed by a review and analysis of examples in the recent literature focused on determining the minimum polymer concentration in an amorphous solid dispersion, capable of producing optimally stable high drug load amorphous dispersions.
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137
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Zhao P, Han W, Shu Y, Li M, Sun Y, Sui X, Liu B, Tian B, Liu Y, Fu Q. Liquid-liquid phase separation drug aggregate: Merit for oral delivery of amorphous solid dispersions. J Control Release 2023; 353:42-50. [PMID: 36414193 DOI: 10.1016/j.jconrel.2022.11.033] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/15/2022] [Accepted: 11/16/2022] [Indexed: 11/23/2022]
Abstract
As a promising strategy, amorphous solid dispersion has been extensively employed in improving the oral bioavailability of insoluble drugs. Despite the numerous advantages, the problems associated with supersaturation stability limit its further application. Recently, the formation and stability of the liquid-liquid phase separation drug aggregate (LLPS-DA) have been found to be vital for supersaturation maintenance. An in-depth review of LLPS-DA was required to further explore the supersaturation maintenance mechanism in vivo. Hence, this study aimed to present a short review to introduce the LLPS-DA, highlight the in vivo advantages for oral administration, and discuss the prospects to help understand the in vivo behavior of LLPS-DA.
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Affiliation(s)
- Peixu Zhao
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Wen Han
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Yecheng Shu
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Mo Li
- Liaoning Institute for Drug Control, No. 7 Chongshan West Road, Shenyang 110016, China
| | - Yichi Sun
- School of Pharmacy, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Xiaofan Sui
- Liaoning Institute for Drug Control, No. 7 Chongshan West Road, Shenyang 110016, China
| | - Bingyang Liu
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China
| | - Baocheng Tian
- School of Pharmacy, Binzhou Medical University, No. 346, Guanhai Road, Yantai 264003, China
| | - Yanhua Liu
- Department of Pharmaceutics, Ningxia Medical University, 1160 Shengli Street, Yinchuan 750004, China
| | - Qiang Fu
- Wuya College of Innovation, Shenyang Pharmaceutical University, No. 103, Wenhua Road, Shenyang 110016, China.
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138
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Delyagina E, Garibyan A, Agafonov M, Terekhova I. Regularities of Encapsulation of Tolfenamic Acid and Some Other Non-Steroidal Anti-Inflammatory Drugs in Metal-Organic Framework Based on γ-Cyclodextrin. Pharmaceutics 2022; 15:pharmaceutics15010071. [PMID: 36678700 PMCID: PMC9867401 DOI: 10.3390/pharmaceutics15010071] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022] Open
Abstract
Metal-organic frameworks based on cyclodextrins (CDs) have been proposed as promising drug delivery systems due to their large surface area, variable pore size, and biocompatibility. In the current work, we investigated an incorporation of tolfenamic acid (TA), a representative of non-steroidal anti-inflammatory drugs (NSAIDs), in a metal-organic framework based on γ-cyclodextrin and potassium cations (γCD-MOF). Composites γCD-MOF/TA obtained by absorption and co-crystallization methods were characterized using powder X-ray diffraction, low temperature nitrogen adsorption/desorption, scanning electron microscopy, and FTIR spectroscopy. It was demonstrated that TA loaded in γCD-MOF has an improved dissolution profile. However, the inclusion of TA in γ-CD reduces the membrane permeability of the drug. A comparative analysis of the encapsulation of different NSAIDs in γCD-MOF was performed. The impact of NSAID structure on the loading capacity was considered for the first time. It was revealed that the presence of heterocycles in the structure and drug lipophilicity influence the loading efficiency of NSAIDs in γCD-MOF.
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Affiliation(s)
- Ekaterina Delyagina
- Institute of Mathematics, Information Technology and Natural Sciences, Ivanovo State University, 153025 Ivanovo, Russia
- Correspondence:
| | - Anna Garibyan
- G.A. Krestov Institute of Solution Chemistry of RAS, 153045 Ivanovo, Russia
| | - Mikhail Agafonov
- G.A. Krestov Institute of Solution Chemistry of RAS, 153045 Ivanovo, Russia
| | - Irina Terekhova
- G.A. Krestov Institute of Solution Chemistry of RAS, 153045 Ivanovo, Russia
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139
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Predicting the Temperature Evolution during Nanomilling of Drug Suspensions via a Semi-Theoretical Lumped-Parameter Model. Pharmaceutics 2022; 14:pharmaceutics14122840. [PMID: 36559333 PMCID: PMC9788500 DOI: 10.3390/pharmaceutics14122840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Although temperature can significantly affect the stability and degradation of drug nanosuspensions, temperature evolution during the production of drug nanoparticles via wet stirred media milling, also known as nanomilling, has not been studied extensively. This study aims to establish both descriptive and predictive capabilities of a semi-theoretical lumped parameter model (LPM) for temperature evolution. In the experiments, the mill was operated at various stirrer speeds, bead loadings, and bead sizes, while the temperature evolution at the mill outlet was recorded. The LPM was formulated and fitted to the experimental temperature profiles in the training runs, and its parameters, i.e., the apparent heat generation rate Qgen and the apparent overall heat transfer coefficient times surface area UA, were estimated. For the test runs, these parameters were predicted as a function of the process parameters via a power law (PL) model and machine learning (ML) model. The LPM augmented with the PL and ML models was used to predict the temperature evolution in the test runs. The LPM predictions were also compared with those of an enthalpy balance model (EBM) developed recently. The LPM had a fitting capability with a root-mean-squared error (RMSE) lower than 0.9 °C, and a prediction capability, when augmented with the PL and ML models, with an RMSE lower than 4.1 and 2.1 °C, respectively. Overall, the LPM augmented with the PL model had both good descriptive and predictive capability, whereas the one with the ML model had a comparable predictive capability. Despite being simple, with two parameters and obviating the need for sophisticated numerical techniques for its solution, the semi-theoretical LPM generally predicts the temperature evolution similarly or slightly better than the EBM. Hence, this study has provided a validated, simple model for pharmaceutical engineers to simulate the temperature evolution during the nanomilling process, which will help to set proper process controls for thermally labile drugs.
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140
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Hermans A, Milsmann J, Li H, Jede C, Moir A, Hens B, Morgado J, Wu T, Cohen M. Challenges and Strategies for Solubility Measurements and Dissolution Method Development for Amorphous Solid Dispersion Formulations. AAPS J 2022; 25:11. [PMID: 36513860 DOI: 10.1208/s12248-022-00760-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 10/05/2022] [Indexed: 12/14/2022] Open
Abstract
This manuscript represents the view of the Dissolution Working Group of the IQ Consortium on the challenges of and recommendations on solubility measurements and development of dissolution methods for immediate release (IR) solid oral dosage forms formulated with amorphous solid dispersions. Nowadays, numerous compounds populate the industrial pipeline as promising drug candidates yet suffer from low aqueous solubility. In the oral drug product development process, solubility along with permeability is a key determinant to assure sufficient drug absorption along the intestinal tract. Formulating the drug candidate as an amorphous solid dispersion (ASD) is one potential option to address this issue. These formulations demonstrate the rapid onset of drug dissolution and can achieve supersaturated concentrations, which poses significant challenges to appropriately characterize solubility and develop quality control dissolution methods. This review strives to categorize the different dissolution and solubility challenges for ASD associated with 3 different topics: (i) definition of solubility and sink conditions for ASD dissolution, (ii) applications and development of non-sink dissolution (according to conventional definition) for ASD formulation screening and QC method development, and (iii) the advantages and disadvantages of using dissolution in detecting crystallinity in ASD formulations. Related to these challenges, successful examples of dissolution experiments in the context of control strategies are shared and may lead as an example for scientific consensus concerning dissolution testing of ASD.
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Affiliation(s)
- Andre Hermans
- Analytical Research and Development, Merck & Co., Inc., Rahway, New Jersey, USA.
| | - Johanna Milsmann
- Analytical Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Biberach, Germany
| | - Hanlin Li
- Technical Operations, Vertex Pharmaceuticals, Boston, Massachusetts, USA
| | - Christian Jede
- Analytical Development, Chemical and Pharmaceutical Development, Merck KGaA, Frankfurter Str. 250, 64293, Darmstadt, Germany
| | - Andrea Moir
- Oral Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Macclesfield, UK
| | - Bart Hens
- Drug Product Design, Pfizer UK, Sandwich, UK
| | | | - Tian Wu
- AffaMed Therapeutics Inc., Sacramento, California, USA
| | - Michael Cohen
- Global Chemistry and Manufacturing Controls, Pfizer, Groton, Connecticut, USA
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141
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Winck J, Daalmann M, Berghaus A, Thommes M. In-line monitoring of solid dispersion preparation in small scale extrusion based on UV-vis spectroscopy. Pharm Dev Technol 2022; 27:1009-1015. [PMID: 36331240 DOI: 10.1080/10837450.2022.2144887] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The poor solubility of a large number of active pharmaceutical ingredients (APIs) is a major challenge in pharmaceutical research. Therefore, the extrusion of amorphous solid dispersions (ASDs) is one promising approach to enhance the dissolution rate by molecularly dissolving the API in an amorphous carrier polymer. During ASD extrusion, crucial parameters as the dissolution of the API in the carrier polymer need to be monitored. Within this study, a small scale twin screw extruder was coupled with special ColVisTec UV-vis probes that are characterized by their small dimensions. This setup enables a systematic formulation design and optimization based on in-line monitoring of drug dissolution using small material quantities. In fact, sample quantities of about 5 mg were evaluated for each measurement, representing 50% of the material inside the die. The amount of undissolved drug particles was determined based on the lightness of the extrudates. It was shown that the temperature has a significant effect on the drug dissolution in the polymer. Furthermore, complete drug dissolution was shifted to lower temperatures if higher residence times were applied. Based on the courses of lightness, regime maps were modeled that specify the process conditions where ASDs are successfully manufactured.
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Affiliation(s)
- Judith Winck
- Laboratory of Solids Process Engineering, TU Dortmund University, Dortmund, Germany
| | - Marvin Daalmann
- Laboratory of Solids Process Engineering, TU Dortmund University, Dortmund, Germany
| | | | - Markus Thommes
- Laboratory of Solids Process Engineering, TU Dortmund University, Dortmund, Germany
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142
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Pöstges F, Kayser K, Stoyanov E, Wagner KG. Boost of solubility and supersaturation of celecoxib via synergistic interactions of methacrylic acid-ethyl acrylate copolymer (1:1) and hydroxypropyl cellulose in ternary amorphous solid dispersions. Int J Pharm X 2022; 4:100115. [PMID: 35368508 PMCID: PMC8968008 DOI: 10.1016/j.ijpx.2022.100115] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/21/2022] [Accepted: 03/23/2022] [Indexed: 11/19/2022] Open
Abstract
A current trend in the development of amorphous solid dispersions (ASDs) is the combination of two polymers for synergistic enhancement in supersaturation of poorly soluble drugs. We investigated the supersaturation potential of celecoxib (CXB) using combinations of methacrylic acid-ethyl acrylate copolymer (1:1) (EL 100–55) and hydroxypropyl cellulose (HPC) SSL. Initially, the supersaturation potential of single polymers and combinations in various ratios was assessed. While EL 100–55 and HPC SSL alone showed limited potential in solubility enhancement of CXB the combination of both polymers led to a boost of CXB solubility, whereby most promising results were obtained using a 50:50 polymer ratio. Binary and ternary CXB ASDs (10% drug load) were prepared via vacuum compressing molding (VCM) and hot melt extrusion (HME). ASDs were studied by exploring the miscibility and intermolecular interactions and tested for their dissolution performance. HPC SSL was identified to be a suitable precipitation inhibitor when added to a fast dissolving CXB: EL 100–55 ASD. Ternary ASDs showed even further dissolution improvement, when processed by HME. The combination of heat and shear stress led to a homogeneous and intimate mixture of EL 100–55 and HPC SSL, resulting in formation of synergistic interactions with pronounced impact on CXB supersaturation. Ternary ASDs showed superior supersaturation compared to binary ASDs. Shear forces of HME required for synergistic polymer-polymer interactions. Interactions of polymers responsible for maximum solubility enhancement of celecoxib.
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Affiliation(s)
- Florian Pöstges
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Kevin Kayser
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Edmont Stoyanov
- Nisso Chemical Europe GmbH, Berliner Allee 42, 40212 Düsseldorf, Germany
| | - Karl G. Wagner
- Department of Pharmaceutical Technology and Biopharmaceutics, University of Bonn, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
- Corresponding author.
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143
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Jia W, Yawman PD, Pandya KM, Sluga K, Ng T, Kou D, Nagapudi K, Luner PE, Zhu A, Zhang S, Hou HH. Assessing the Interrelationship of Microstructure, Properties, Drug Release Performance, and Preparation Process for Amorphous Solid Dispersions Via Noninvasive Imaging Analytics and Material Characterization. Pharm Res 2022; 39:3137-3154. [PMID: 35661085 DOI: 10.1007/s11095-022-03308-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/27/2022] [Indexed: 12/27/2022]
Abstract
PURPOSE The purpose of this work is to evaluate the interrelationship of microstructure, properties, and dissolution performance for amorphous solid dispersions (ASDs) prepared using different methods. METHODS ASD of GDC-0810 (50% w/w) with HPMC-AS was prepared using methods of spray drying and co-precipitation via resonant acoustic mixing. Microstructure, particulate and bulk powder properties, and dissolution performance were characterized for GDC-0810 ASDs. In addition to application of typical physical characterization tools, we have applied X-Ray Microscopy (XRM) to assess the contribution of microstructure to the characteristics of ASDs and obtain additional quantification and understanding of the drug product intermediates and tablets. RESULTS Both methods of spray drying and co-precipitation produced single-phase ASDs. Distinct differences in microstructure, particle size distribution, specific surface area, bulk and tapped density, were observed between GDC-0810 spray dried dispersion (SDD) and co-precipitated amorphous dispersion (cPAD) materials. The cPAD powders prepared by the resonant acoustic mixing process demonstrated superior compactibility compared to the SDD, while the compressibility of the ASDs were comparable. Both SDD powder and tablets showed higher in vitro dissolution than those of cPAD powders. XRM calculated total solid external surface area (SA) normalized by calculated total solid volume (SV) shows a strong correlation with micro dissolution data. CONCLUSION Strong interrelationship of microstructure, physical properties, and dissolution performance was observed for GDC-0810 ASDs. XRM image-based analysis is a powerful tool to assess the contribution of microstructure to the characteristics of ASDs and provide mechanistic understanding of the interrelationship.
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Affiliation(s)
- Wei Jia
- Small Molecule Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Phillip D Yawman
- DigiM Solution LLC, 67 South Bedford Street, Suite 400 West, Burlington, Massachusetts, 01803, USA
| | - Keyur M Pandya
- Small Molecule Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Kellie Sluga
- Small Molecule Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Tania Ng
- Small Molecule Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Dawen Kou
- Small Molecule Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Karthik Nagapudi
- Small Molecule Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA
| | - Paul E Luner
- DigiM Solution LLC, 67 South Bedford Street, Suite 400 West, Burlington, Massachusetts, 01803, USA.,Triform Sciences LLC, Waterford, Connecticut, 06385, USA
| | - Aiden Zhu
- DigiM Solution LLC, 67 South Bedford Street, Suite 400 West, Burlington, Massachusetts, 01803, USA
| | - Shawn Zhang
- DigiM Solution LLC, 67 South Bedford Street, Suite 400 West, Burlington, Massachusetts, 01803, USA
| | - Hao Helen Hou
- Small Molecule Pharmaceutical Sciences, Genentech Inc., 1 DNA Way, South San Francisco, California, 94080, USA.
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144
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Wu H, Ma J, Qian S, Jiang W, Liu Y, Li J, Ke Z, Feng K. Co-amorphization of posaconazole using citric acid as an acidifier and a co-former for solubility improvement. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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145
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Junqueira LA, Tabriz AG, Rousseau F, Raposo NRB, Brandão MAF, Douroumis D. Development of printable inks for 3D printing of personalized dosage forms: Coupling of fused deposition modelling and jet dispensing. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.104108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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146
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Pugliese A, Tobyn M, Hawarden LE, Abraham A, Blanc F. New Development in Understanding Drug-Polymer Interactions in Pharmaceutical Amorphous Solid Dispersions from Solid-State Nuclear Magnetic Resonance. Mol Pharm 2022; 19:3685-3699. [PMID: 36037249 PMCID: PMC9644399 DOI: 10.1021/acs.molpharmaceut.2c00479] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Revised: 08/03/2022] [Accepted: 08/04/2022] [Indexed: 01/08/2023]
Abstract
Pharmaceutical amorphous solid dispersions (ASDs) represent a widely used technology to increase the bioavailability of active pharmaceutical ingredients (APIs). ASDs are based on an amorphous API dispersed in a polymer, and their stability is driven by the presence of strong intermolecular interactions between these two species (e.g., hydrogen bond, electrostatic interactions, etc.). The understanding of these interactions at the atomic level is therefore crucial, and solid-state nuclear magnetic resonance (NMR) has demonstrated itself as a very powerful technique for probing API-polymer interactions. Other reviews have also reported exciting approaches to study the structures and dynamic properties of ASDs and largely focused on the study of API-polymer miscibility and on the identification of API-polymer interactions. Considering the increased use of NMR in the field, the aim of this Review is to specifically highlight recent experimental strategies used to identify API-polymer interactions and report promising recent examples using one-dimensional (1D) and two-dimensional (2D) experiments by exploiting the following emerging approaches of very-high magnetic field and ultrafast magic angle spinning (MAS). A range of different ASDs spanning APIs and polymers with varied structural motifs is targeted to illustrate new ways to understand the mechanism of stability of ASDs to enable the design of new dispersions.
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Affiliation(s)
- Andrea Pugliese
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
| | - Michael Tobyn
- Drug
Product Development, Bristol-Myers Squibb, Moreton CH46 1QW, United Kingdom
| | - Lucy E. Hawarden
- Drug
Product Development, Bristol-Myers Squibb, Moreton CH46 1QW, United Kingdom
| | - Anuji Abraham
- Drug
Product Development, Bristol-Myers Squibb, New Brunswick, New Jersey 08903, United States
| | - Frédéric Blanc
- Department
of Chemistry, University of Liverpool, Liverpool L69 7ZD, United Kingdom
- Stephenson
Institute for Renewable Energy, University
of Liverpool, Liverpool L69 7ZF, United Kingdom
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147
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Enhancement of the Solubility and Dissolution Rate of Telmisartan by Surface Solid Dispersions Employing Superdisintegrants, Hydrophilic Polymers and Combined Carriers. Sci Pharm 2022. [DOI: 10.3390/scipharm90040071] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
Telmisartan (Tel) is a potent antihypertensive drug with a very poor aqueous solubility, especially in pH ranging from 3 to 9 (i.e., biological fluids) that results in poor bioavailability. Our aim was to improve Tel solubility and dissolution rates without the need for expensive multistep procedures, and without inclusion of alkalinizers. This study adopted the use of surface solid dispersions (SSDs) employing superdisintegrants, hydrophilic polymers and combined carriers including a superdisintegrant with a hydrophilic polymer. Tel-SSDs were formulated using thesolvent evaporation method. Compatibility between Tel and different carriers was examined via FT-IR. Tel-SSDs were evaluated optically and thermally to reveal a complete loss of the crystalline nature of the drug. Both drug content and percentage yield were calculated to judge the efficiency of the preparation technique used. Saturation, aqueous solubility, and dissolutions rates were determined. Dissolution profiles were studied using model dependent and independent approaches and were subjected to the pair-wise procedure using the DDsolver software program. Effect of aging was studied by comparing the drug content and dissolution profiles of freshly prepared SSDs with aged samples. All Tel-SSDs showed acceptable physical properties. Tel-SSDs showed pertinent enhancement related to the carrier used. Combined surface solid dispersions employing superdisintegrant croscarmellose sodium with either hydrophilic polymer PEG 4000 or Poloxamer 407 gave remarkable enhancement in solubility and dissolution rates of Tel where more than 90% of the drug was released within 20 min. The effect of aging results proved a non-significant difference in the drug content and dissolution profiles between fresh and aged samples. Formulation of Tel SSDs using combined carriers proved to be effective in enhancing the aqueous solubility and dissolution rates of Tel, as well as showing good stability upon aging.
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148
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Dain IA, Zolotov SA, Demina NB, Zolotova AS, Buzanov GA, Retivov VM, Ponomaryov YS. Complex dispersions of poloxamers and mesoporous carriers with ibrutinib. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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149
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Wang B, Wang X, Zhu Y, Yin T, Gou J, Wang Y, He H, Zhang Y, Tang X. Characterization of nimodipine amorphous nanopowder prepared by quenching cooling combined with wet milling and spray drying. Int J Pharm 2022; 628:122332. [DOI: 10.1016/j.ijpharm.2022.122332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 10/02/2022] [Accepted: 10/18/2022] [Indexed: 11/06/2022]
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150
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Schikarski T, Trzenschiok H, Avila M, Peukert W. Impact of solvent properties on the precipitation of active pharmaceutical ingredients. POWDER TECHNOL 2022. [DOI: 10.1016/j.powtec.2022.118032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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