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Vasiljević I, Turković E, Parojčić J. Data-driven insights into the characteristics of liquisolid systems based on the machine learning algorithms. Eur J Pharm Sci 2024:106927. [PMID: 39378961 DOI: 10.1016/j.ejps.2024.106927] [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: 07/08/2024] [Revised: 10/01/2024] [Accepted: 10/04/2024] [Indexed: 10/10/2024]
Abstract
Liquisolid systems (LS) represent a formulation approach where liquid drug or its dispersion is transformed into a powder with good flowability and compactibility, leading to enhanced drug dissolution and bioavailability. Many research groups have focused on the preparation and investigation of LS, leading to a higher need for comprehensive evaluation of factors impacting LS characteristics. The aim of this work was to investigate the applicability of machine learning algorithms in the LS evaluation, using data mined from published literature, and provide an insight into critical factors governing the liquisolid system performance. The dataset was prepared using publication search engines and relevant keywords, with a total of 425 formulations included in the database. The database focused on preparation methods, formulation parameters, and liquisolid system characteristics. Subsequently, critical properties of the liquisolid system, i.e. flowability, compact hardness, and drug dissolution, were analyzed using machine learning algorithms, including Gradient Boosting, Adaptive Boosting and Random Forest. In addition to conventional preparation methods and excipients, novel technologies (fluid bed preparation, extrusion/spheronization) and materials (Neusilin®, Fujicalin®, and Syloid®) enhanced the properties of liquisolid systems. The analysis revealed that formulation factors, such as carrier and coating agent type and content, liquid phase load, model drug type and content, as well as preparation method, significantly influenced liquisolid system characteristics. The models developed exhibited high prediction accuracy when applied on test data (higher than 80%). This indicates that the machine learning models may provide an insight into the critical attributes affecting the LS performance and may be used as a valuable tool in the development and optimization of these samples.
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Affiliation(s)
- Ivana Vasiljević
- Department of Pharmaceutical Technology and Cosmetology, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia.
| | - Erna Turković
- Department of Pharmaceutical Technology and Cosmetology, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
| | - Jelena Parojčić
- Department of Pharmaceutical Technology and Cosmetology, University of Belgrade - Faculty of Pharmacy, Vojvode Stepe 450, 11221 Belgrade, Serbia
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2
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Guan H, Wang M, Yu S, Wang C, Chen Q, Chen Y, Zhang W, Fan J. Candesartan Cilexetil Formulations in Mesoporous Silica: Preparation, Enhanced Dissolution In Vitro, and Oral Bioavailability In Vivo. J Pharm Sci 2024; 113:3045-3053. [PMID: 39094942 DOI: 10.1016/j.xphs.2024.07.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 07/08/2024] [Accepted: 07/09/2024] [Indexed: 08/04/2024]
Abstract
Candesartan cilexetil (CC) is one of well-tolerated antihypertensive drugs, while its poor solubility and low bioavailability limit its use. Herein, two mesoporous silica (Syloid XDP 3150 and Syloid AL-1 FP) and the corresponding amino-modified products (N-XDP 3150 and N-AL-1 FP) have been selected as the carriers of Candesartan cilexetil to prepare solid dispersion through solvent immersion, and characterized through using powder X-ray diffraction analysis, infrared spectroscopy, differential scanning calorimetry, scanning electron microscopy, and solid-state nuclear magnetic resonance spectroscopy, etc. The state of CC changed from crystalline to amorphous after loading onto the silica carriers, in which no interactions between CC and silica existed. Then, the dissolution behaviors in vitro were studied through using flow-through cell dissolution method. CC-XDP 3150 sample exhibited the most extensive dissolution, and the cumulative release of CC from it was 1.88-fold larger than that of CC. Moreover, the pharmacokinetic results in rats revealed that the relative bioavailability of CC-XDP 3150 and CC-N-XDP 3150 solid dispersions were estimated to be 326 % % and 238 % % in comparison with CC, respectively. Clearly, pore size, pore volume, and surface properties of silica carrier have remarkable effect on loading, dissolution and bioavailability of CC. In brief, this work will provide valuable information in construction of mesoporous silica-based delivery system toward poorly water-soluble drugs.
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Affiliation(s)
- Huijian Guan
- School of Chemistry, South China Normal University, Key Laboratory of Process Control and Quality Evaluation of Chiral Drugs, Guangdong Provincial Drug Administration, Guangzhou Key Laboratory of Biomedical Analytical Chemistry, Guangzhou 510006, China
| | - Miao Wang
- Department of Pharmaceutical Excipients, Guangdong Institute for Drug Control, Key Laboratory of Quality Control and Evaluation of Pharmaceutical Excipients, State Drug Administration, Guangzhou 510663, China
| | - Shaowen Yu
- Department of Pharmaceutical Excipients, Guangdong Institute for Drug Control, Key Laboratory of Quality Control and Evaluation of Pharmaceutical Excipients, State Drug Administration, Guangzhou 510663, China
| | - Caimei Wang
- Department of Pharmaceutical Excipients, Guangdong Institute for Drug Control, Key Laboratory of Quality Control and Evaluation of Pharmaceutical Excipients, State Drug Administration, Guangzhou 510663, China
| | - Qi Chen
- Drug Safety Evaluation Center, Drug Safety Evaluation Center, Guangdong Institute for Drug Control, Guangzhou 510663, China
| | - Ying Chen
- Department of Pharmaceutical Excipients, Guangdong Institute for Drug Control, Key Laboratory of Quality Control and Evaluation of Pharmaceutical Excipients, State Drug Administration, Guangzhou 510663, China.
| | - Weiguang Zhang
- School of Chemistry, South China Normal University, Key Laboratory of Process Control and Quality Evaluation of Chiral Drugs, Guangdong Provincial Drug Administration, Guangzhou Key Laboratory of Biomedical Analytical Chemistry, Guangzhou 510006, China
| | - Jun Fan
- School of Chemistry, South China Normal University, Key Laboratory of Process Control and Quality Evaluation of Chiral Drugs, Guangdong Provincial Drug Administration, Guangzhou Key Laboratory of Biomedical Analytical Chemistry, Guangzhou 510006, China.
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3
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Tu B, Jonnalagadda S. Amorphous stabilization of BCS II drugs using mesoporous silica. Int J Pharm 2024; 663:124555. [PMID: 39111354 DOI: 10.1016/j.ijpharm.2024.124555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 07/29/2024] [Accepted: 08/02/2024] [Indexed: 08/19/2024]
Abstract
This study aimed to investigate the amorphous stabilization of BCS Class II drugs using mesoporous silica as a carrier to produce amorphous solid dispersions. Ibuprofen, fenofibrate, and budesonide were selected as model drugs to evaluate the impact of molecular weight and partition coefficient on the solid state of drug-loaded mesoporous silica (MS) particles. The model drugs were loaded into three grades of MS, SYLYSIA SY730, SYLYSIA SY430, and SYLYSIA SY350, with pore diameters of 2.5 nm, 17 nm, and 21 nm, respectively, at 1:1, 2:1, and 3:1, carrier to drug ratios, and three different loading concentrations using solvent immersion and spray drying techniques. Differential scanning calorimetry (DSC) thermograms of SY430 and SY350 samples exhibited melting point depressions indicating constricted crystallization inside the pores, whereas SY730 samples with melting points matching the pure API may be a result of surface crystallization. Powder x-ray diffraction (PXRD) diffractograms showed all crystalline samples matched the diffraction patterns of the pure API indicating no polymorphic transitions and all 3:1 ratio samples exhibited amorphous halo profiles. Response surface regression analysis and Classification and Regression Tree (CART) analysis suggest carrier to drug ratios, followed by molecular weight, have the most significant impact on the crystallinity of a drug loaded into MS particles.
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Affiliation(s)
- Buu Tu
- Saint Joseph's University, 600 S 43rd Street, Philadelphia, PA 19104, USA.
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4
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Benedikt Brenner M, Wüst M, Kuentz M, Wagner KG. High loading of lipophilic compounds in mesoporous silica for improved solubility and dissolution performance. Int J Pharm 2024; 654:123946. [PMID: 38417728 DOI: 10.1016/j.ijpharm.2024.123946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Revised: 02/22/2024] [Accepted: 02/22/2024] [Indexed: 03/01/2024]
Abstract
Loading poorly soluble active pharmaceutical ingredients (API) into mesoporous silica can enable API stabilization in non-crystalline form, which leads to improved dissolution. This is particularly beneficial for highly lipophilic APIs (log D7.4 > 8) as these drugs often exhibit limited solubility in dispersion forming carrier polymers, resulting in low drug load and reduced solid state stability. To overcome this challenge, we loaded the highly lipophilic natural products coenzyme Q10 (CoQ10) and astaxanthin (ASX), as well as the synthetic APIs probucol (PB) and lumefantrine (LU) into the mesoporous silica carriers Syloid® XDP 3050 and Silsol® 6035. All formulations were physically stable in their non-crystalline form and drug loads of up to 50 % were achieved. At increasing drug loads, a marked increase in equilibrium solubility of the active ingredients in biorelevant medium was detected, leading to improved performance during biorelevant biphasic dissolution studies (BiPHa + ). Particularly the natural products CoQ10 and ASX showed substantial benefits from being loaded into mesoporous carrier particles and clearly outperformed currently available commercial formulations. Performance differences between the model compounds could be explained by in silico calculations of the mixing enthalpy for drug and silica in combination with an experimental chromatographic method to estimate molecular interactions.
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Affiliation(s)
- Marvin Benedikt Brenner
- University of Bonn, Pharmaceutical Institute, Department of Pharmaceutics, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany
| | - Matthias Wüst
- University of Bonn, Institute of Nutritional and Food Sciences, Food Chemistry, Friedrich-Hirzebruch-Allee 7, 53115 Bonn, Germany
| | - Martin Kuentz
- University of Applied Sciences and Arts Northwestern Switzerland, Institute of Pharma Technology, Hofackerstr. 30, 4132 Muttenz, Switzerland
| | - Karl G Wagner
- University of Bonn, Pharmaceutical Institute, Department of Pharmaceutics, Gerhard-Domagk-Str. 3, 53121 Bonn, Germany.
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5
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Ogadah CU, Mrštná K, Matysová L, Müllertz A, Rades T, Niederquell A, Šklubalová Z, Vraníková B. Comparison of the liquisolid technique and co-milling for loading of a poorly soluble drug in inorganic porous excipients. Int J Pharm 2024; 650:123702. [PMID: 38086492 DOI: 10.1016/j.ijpharm.2023.123702] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 12/07/2023] [Accepted: 12/09/2023] [Indexed: 12/18/2023]
Abstract
Drug loading into mesoporous carriers may help to improve the dissolution of poorly aqueous-soluble drugs. However, both preparation method and carrier properties influence loading efficiency and drug release. Accordingly, this study aimed to compare two preparation methods: formulation into liquisolid systems (LSS) and co-milling for their efficiency in loading the poorly soluble model drug cyclosporine A (CyA) into mesoporous magnesium aluminometasilicate Neusilin® US2 (NEU) or functionalized calcium carbonate (FCC). Scanning electron microscopy was used to visualize the morphology of the samples and evaluate the changes that occurred during the drug loading process. The solid-state characteristics and physical stability of the formulations, prepared at different drug concentrations, were determined using X-ray powder diffraction. In vitro release of the drug was evaluated in biorelevant media simulating intestinal fluid. The obtained results revealed improved drug release profiles of the formulations when compared to the milled (amorphous) CyA alone. The dissolution of CyA from LSS was faster in comparison to the co-milled formulations. Higher drug release was achieved from NEU than FCC formulations presumably due to the higher pore volume and larger surface area of NEU.
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Affiliation(s)
- Chiazor Ugo Ogadah
- Department of Pharmaceutical Technology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
| | - Kristýna Mrštná
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic; Department of Clinical Biochemistry and Diagnostics, University Hospital Hradec Králové, Sokolská 581, 50005 Hradec Králové, Czech Republic.
| | - Ludmila Matysová
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen, Denmark.
| | - Thomas Rades
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, Copenhagen, Denmark.
| | - Andreas Niederquell
- Department of Pharmaceutical Technology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic; Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, School of Life Sciences, Klingelbergstr. 50, 4056 Basel, Switzerland.
| | - Zdenka Šklubalová
- Department of Pharmaceutical Technology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
| | - Barbora Vraníková
- Department of Pharmaceutical Technology, Faculty of Pharmacy in Hradec Králové, Charles University, Akademika Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
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Moghadam RP, Shukla CA, Ranade VV. Novel Machine Learning-Based Method for Estimation of the Surface Area of Porous Silica Particles. Ind Eng Chem Res 2023; 62:18810-18821. [PMID: 37969176 PMCID: PMC10636746 DOI: 10.1021/acs.iecr.3c02785] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2023] [Revised: 10/11/2023] [Accepted: 10/14/2023] [Indexed: 11/17/2023]
Abstract
This work reports a novel and quick method to estimate the surface area of porous materials. Conventionally, surface area measurement requires the BET method/N2 adsorption experiment which is time-consuming. In this work, we developed a method based on machine learning (ML) and the adsorption of a conductive dye on porous materials. The rate and quantity of dye adsorption, which is characterized by dynamic measurement of conductivity, provide an indirect measure of surface area and zeta potential. An ML-based soft sensor is developed to relate the measured conductivity profiles with surface area and zeta potential. A phenomenological model on dye adsorption is also developed, validated, and used to augment experimental data for training the soft sensor. The developed method was tested for porous silica particles with a range of surface areas (250-1100 m2/g) and zeta potential (-17 mV: -29 mV). The developed soft sensor was able to estimate the surface area and zeta potential quite well. The developed approach and method reduce overall measurement time for surface area from several hours to a few minutes. The method can potentially be implemented in continuous plants producing porous materials like silica.
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Affiliation(s)
- Roja P. Moghadam
- Multiphase Reactors and Process
Intensification Group, Bernal Institute, University of Limerick, Limerick V94T9PX, Ireland
| | - Chinmay A. Shukla
- Multiphase Reactors and Process
Intensification Group, Bernal Institute, University of Limerick, Limerick V94T9PX, Ireland
| | - Vivek V. Ranade
- Multiphase Reactors and Process
Intensification Group, Bernal Institute, University of Limerick, Limerick V94T9PX, Ireland
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7
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Waters LJ, Whiteley J, Small W, Mellor S. Determining suitable surfactant concentration ranges to avoid protein unfolding in pharmaceutical formulations using UV analysis. Heliyon 2023; 9:e21712. [PMID: 37954313 PMCID: PMC10632529 DOI: 10.1016/j.heliyon.2023.e21712] [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: 03/03/2023] [Revised: 09/08/2023] [Accepted: 10/26/2023] [Indexed: 11/14/2023] Open
Abstract
Protein stability is fundamental to maintain pharmaceutical efficacy in the nascent field of biologics. One particular property that is essential for therapeutic effect is retention of the folded 3-dimensional conformation, i.e. once unfolding has occurred the biologic is often rendered inactive. In this work we propose a modified form of a recently published UV spectroscopic method that identifies protein unfolding. In this study we determine concentration limits to avoid protein unfolding of two model surfactants, namely polysorbate 20 and polysorbate 80, by correlating surfactant concentration with percentage 'unfolded' for three model proteins. For each scenario two distinct regions were observed, firstly surfactant concentrations at which no unfolding had occurred, followed by a second region whereby unfolding steadily increased with surfactant concentration. In general for the combinations analysed in this study, this second region began to appear around ten times below the critical micellar concentration of each surfactant, regardless of the protein or polysorbate chosen. It is therefore proposed that this adapted method could be used by researchers in the early stages of formulation development as a convenient and simple screening tool to confirm the 'onset of unfolding' concentration for protein-surfactant formulations, thus helping to optimise surfactant concentration selection in pharmaceutical formulations to maintain the benefits of surfactants yet avoid inadvertent unfolding.
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Affiliation(s)
- Laura J. Waters
- School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK
| | - Joseph Whiteley
- School of Applied Sciences, University of Huddersfield, Queensgate, Huddersfield, HD1 3DH, UK
| | - William Small
- Croda Europe Ltd, Cowick Hall, Snaith, Goole, DN14 9AA, UK
| | - Steve Mellor
- Croda Europe Ltd, Cowick Hall, Snaith, Goole, DN14 9AA, UK
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8
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Zhang W, Li G, Xiao C, Chang X, Sun Y, Fan W, Tian B, Gao D, Xiao Y, Wu X, He S, Zhai G. Mesoporous Silica Carrier-Based Composites for Taste-Masking of Bitter Drug: Fabrication and Palatability Evaluation. AAPS PharmSciTech 2022; 23:75. [PMID: 35169970 DOI: 10.1208/s12249-022-02227-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2021] [Accepted: 01/28/2022] [Indexed: 11/30/2022] Open
Abstract
Palatability is one of the most critical characteristics of oral preparations. Therefore, the exploration of new techniques to mask the aversive taste of drugs is in continuous demand. In this study, we fabricated and characterized composites based on mesoporous silica (MPS) that consisted of MPS, a bitter drug, and release regulators. We conducted a palatability evaluation to assess the taste-masking efficacy of the composites. The composites were prepared using the dry impregnation method combined with hot-melt extrusion. Morphology and components distribution in composites were characterized by scanning electron microscopy, confocal laser scanning microscopy, X-ray photoelectron spectroscopy, powder flow properties evaluation, and nitrogen-sorption measurement. The results demonstrated that drugs mainly existed in the inner pore of composites, and release regulators existed in the inner pore and covered the composites' surface. Interactions among the composite components were studied using powder X-ray diffraction, differential scanning calorimetry, and Fourier transform infrared spectroscopy. The drug loaded into the composites was amorphous, and an intermolecular interaction occurred between the drug and the MPS. Taste-masked composites significantly reduced drug release levels under mouth conditions; thus, they prevented the interaction of the dissolved drug with taste receptors and improved palatability. An electronic tongue evaluation and a human taste panel assessment confirmed the better palatability of taste-masked composites. Moreover, the desired drug release behavior can be adjusted by choosing an appropriate release regulator, with stronger hydrophobicity of release regulators resulting in slower drug release. This work has provided new insights into taste-masking strategies for drugs with unpleasant tastes.
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Dadej A, Woźniak-Braszak A, Bilski P, Piotrowska-Kempisty H, Józkowiak M, Stawny M, Dadej D, Mrotek M, Jelińska A. APTES-Modified SBA-15 as a Non-Toxic Carrier for Phenylbutazone. MATERIALS 2022; 15:ma15030946. [PMID: 35160897 PMCID: PMC8838844 DOI: 10.3390/ma15030946] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Revised: 01/03/2022] [Accepted: 01/22/2022] [Indexed: 12/16/2022]
Abstract
Improvement of the bioavailability of poorly soluble medicinal substances is currently one of the major challenges for pharmaceutical industry. Enhancing the dissolution rate of those drugs using novel methods allows to increase their bioavailability. In recent years, silica-based mesoporous materials have been proposed as drug delivery systems that augment the dissolution rate. The aim of this study was to analyse the influence of phenylbutazone adsorption on SBA-15 on its dissolution rate. Moreover, we examined the cytotoxicity of the analyzed silica. The material was characterized by SEM, TEM, DSC, 1H-NMR, XRD, and FT-IR. The phenylbutazone did not adsorb on unmodified SBA-15, while the adsorption on APTES-modified SBA-15 resulted in 50.43 mg/g of loaded phenylbutazone. Phenylbutazone adsorbed on the APTES-modified SBA-15 was then released in the hydrochloric acidic medium (pH 1.2) and phosphate buffer (pH 7.4) and compared to the dissolution rate of the crystalline phenylbutazone. The release profiles of the amorphous form of adsorbed phenylbutazone are constant in different pH, while the dissolution rate of the crystalline phenylbutazone depends on the pH. The cytotoxicity assays were performed using the Caco-2 cell line. Our results indicate that the analyzed material ensured phenylbutazone adsorption in an amorphous state inside the mesopores and increased its dissolution rate in various pH levels. Furthermore, the cytotoxicity assay proved safety of studied material. Our study demonstrated that APTES-modified SBA-15 can serve as a non-toxic drug carrier that improves the bioavailability of phenylbutazone.
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Affiliation(s)
- Adrianna Dadej
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznań, Poland; (M.S.); (M.M.); (A.J.)
- Correspondence:
| | - Aneta Woźniak-Braszak
- Functional Materials Physics Division, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland;
| | - Paweł Bilski
- Medical Physics and Radiospectroscopy Division, Faculty of Physics, Adam Mickiewicz University, Uniwersytetu Poznańskiego 2, 61-614 Poznań, Poland;
- Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, 141980 Dubna, Russia
| | - Hanna Piotrowska-Kempisty
- Department of Toxicology, Faculty of Pharmacy, Poznan University of Medical Sciences, Dojazd 30, 60-631 Poznań, Poland; (H.P.-K.); (M.J.)
| | - Małgorzata Józkowiak
- Department of Toxicology, Faculty of Pharmacy, Poznan University of Medical Sciences, Dojazd 30, 60-631 Poznań, Poland; (H.P.-K.); (M.J.)
| | - Maciej Stawny
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznań, Poland; (M.S.); (M.M.); (A.J.)
| | - Daniela Dadej
- Department of Endocrinology, Metabolism and Internal Diseases, Faculty of Medicine, Poznan University of Medical Sciences, Przybyszewskiego 49, 60-355 Poznań, Poland;
| | - Michał Mrotek
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznań, Poland; (M.S.); (M.M.); (A.J.)
| | - Anna Jelińska
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Poznan University of Medical Sciences, Grunwaldzka 6, 60-780 Poznań, Poland; (M.S.); (M.M.); (A.J.)
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10
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Koch N, Jennotte O, Ziemons E, Boussard G, Lechanteur A, Evrard B. Influence of API physico-chemical properties on amorphization capacity of several mesoporous silica loading methods. Int J Pharm 2021; 613:121372. [PMID: 34906649 DOI: 10.1016/j.ijpharm.2021.121372] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Revised: 12/06/2021] [Accepted: 12/07/2021] [Indexed: 12/15/2022]
Abstract
The objective of this work was to evaluate the impact of physico-chemical properties of pharmaceutical drugs on the optimal mesoporous silica loading methods. Indeed, a good combination between drug and loading process has to be studied to promote the deepest penetration of the drug inside the mesopores, allowing high drug amorphization. Six molecules, namely lidocaine and its hydrochloride, ibuprofen, ketoprofen, artemether and miconazole, with different physico-chemical properties (the ionized character, the acid-base character, the HBDA number, the solubility in sc-CO2 and the behavior under subcritical CO2) were used to produce drug-silica formulations. Different impregnation processes (physical mixing, melting, wetting, sc-CO2 and subcritical CO2 impregnations) have been compared for each drug, in terms of drug recovery and crystallinity. Formulations showed drug percentage close to 100% except for supercritical soluble drug formulations impregnated by using sc-CO2. However, the basic drug character provided less or no drug loss during impregnation. Processing insoluble sc-CO2 molecule under supercritical conditions led to less crystallinity than the correspondent physical mixture suggesting an interesting repulsive effect that forces the drug penetration within the mesopores. Besides, it has been also highlighted that the HBDA number is not sufficient to predict the final drug loading. Melting methods have high interest considering the drugs tested and subcritical CO2 could increase the loading, especially for drugs with high molten viscosity. This study showed that a plethora of loading methods can be used to provide high drug loaded MS formulations with a wide choice of equipment.
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Affiliation(s)
- N Koch
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium.
| | - O Jennotte
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium
| | - E Ziemons
- University of Liège, Laboratory of Pharmaceutical Analytical Chemistry Laboratory, Vibra-Santé Hub, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium
| | - G Boussard
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium
| | - A Lechanteur
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium
| | - B Evrard
- University of Liège, Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Avenue Hippocrate, B36 (+2) 4000 Liège, Belgium
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11
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Baumgartner A, Planinšek O. Application of commercially available mesoporous silica for drug dissolution enhancement in oral drug delivery. Eur J Pharm Sci 2021; 167:106015. [PMID: 34547382 DOI: 10.1016/j.ejps.2021.106015] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 09/16/2021] [Accepted: 09/17/2021] [Indexed: 11/17/2022]
Abstract
Due to the high number of poorly water-soluble active pharmaceutical ingredients, oral drug delivery development has become challenging. One of the strategies to enhance drug solubility and to achieve high oral bioavailability is to formulate such compounds into amorphous solid dispersions. In recent years, porous materials have been investigated as possible carriers into which a drug can be adsorbed, such as mesoporous silica, in particular. Unlike the ordered mesoporous network of silica, non-ordered silica already has a "generally regarded as safe" status, and is already used as an excipient in pharmaceutical and cosmetic products. Thus, it is reasonable to expect that products that contain solid dispersions with non-ordered carriers will reach the market sooner and more easily than those with ordered mesoporous carriers. The emphasis of this review is therefore on non-ordered commercially available mesoporous silica and the progress that has been made in development of the use of these materials for improved dissolution rates in oral drug delivery. First, a thorough categorisation of the drug loading methods is presented, followed by discussion on the most important characteristics of solid dispersions (i.e., physical state, stability, drug release). Finally, manufacturability and production of a final solid dosage form are considered.
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Affiliation(s)
- Ana Baumgartner
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, Ljubljana 1000, Slovenia
| | - Odon Planinšek
- Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, Ljubljana 1000, Slovenia.
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Ianni F, Gagliardi A, Taticchi A, Servili M, Pinna N, Schoubben A, Sardella R, Bruscoli S. Exploiting Food-Grade Mesoporous Silica to Preserve the Antioxidant Properties of Fresh Olive Mill Wastewaters Phenolic Extracts. Antioxidants (Basel) 2021; 10:antiox10091361. [PMID: 34572992 PMCID: PMC8466964 DOI: 10.3390/antiox10091361] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 08/17/2021] [Accepted: 08/23/2021] [Indexed: 11/16/2022] Open
Abstract
Fresh olive mill wastewaters phenolic extracts are of great interest as preservatives or fortifying ingredients but are characterized by limited stability. The purpose of this study was to use mesoporous silica to enhance their stability and preserve their antioxidant properties. The phenolic extracts were characterized for their composition by HPLC-DAD and included in a mesoporous matrix with or without a lipid coating. The inclusion complexes were characterized in terms of total phenolic content, radical scavenging capacity and in vitro antioxidative activity and cell compatibility. Besides, inclusion complex stability under different storage conditions (22 and 37 °C, 75% relative humidity, 1 month) was evaluated. The inclusion process was nearly quantitative and modified neither the total phenolic content nor the total antioxidant capacity. None of the inclusion complex concentrations assayed on the HT29 cell line showed toxicity. Moreover, HT29 cells treated with the inclusion complex exhibited a significant antioxidant effect, while the lipid coating impaired the antioxidant activity. The complexes without lipid were stable under all the investigated conditions, while the lipid-coated products were less stable under the more drastic conditions. Overall, inclusion complexes in mesoporous silica have suitable characteristics to be used for different applications, including food supplementation.
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Affiliation(s)
- Federica Ianni
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy; (F.I.); (N.P.)
| | - Andrea Gagliardi
- Department of Medicine and Surgery, University of Perugia, Via Gambuli 1, 06132 Perugia, Italy; (A.G.); (S.B.)
| | - Agnese Taticchi
- Department of Agricultural Food and Environmental Sciences, University of Perugia, Via S. Costanzo, 06126 Perugia, Italy; (A.T.); (M.S.)
| | - Maurizio Servili
- Department of Agricultural Food and Environmental Sciences, University of Perugia, Via S. Costanzo, 06126 Perugia, Italy; (A.T.); (M.S.)
| | - Nicola Pinna
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy; (F.I.); (N.P.)
| | - Aurélie Schoubben
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy; (F.I.); (N.P.)
- Correspondence: (A.S.); (R.S.); Tel.: +39-075-585-2057 (A.S.); +39-075-585-7423 (R.S.)
| | - Roccaldo Sardella
- Department of Pharmaceutical Sciences, University of Perugia, Via Fabretti 48, 06123 Perugia, Italy; (F.I.); (N.P.)
- Center for Perinatal and Reproductive Medicine, University of Perugia, Santa Maria della Misericordia University Hospital, 06132 Perugia, Italy
- Correspondence: (A.S.); (R.S.); Tel.: +39-075-585-2057 (A.S.); +39-075-585-7423 (R.S.)
| | - Stefano Bruscoli
- Department of Medicine and Surgery, University of Perugia, Via Gambuli 1, 06132 Perugia, Italy; (A.G.); (S.B.)
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Development of a Hydrophobicity-Controlled Delivery System Containing Levodopa Methyl Ester Hydrochloride Loaded into a Mesoporous Silica. Pharmaceutics 2021; 13:pharmaceutics13071039. [PMID: 34371730 PMCID: PMC8309028 DOI: 10.3390/pharmaceutics13071039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 07/01/2021] [Accepted: 07/03/2021] [Indexed: 11/17/2022] Open
Abstract
Background: The drug release of antiparkinsonian drugs is an important issue during the formulation process because proper release kinetics can help to reduce the off periods of Parkinson’s disease. A 2-factor, 3-level (32) full-factorial design was conducted to evaluate statistically the influence of the hydrophobicity of mesoporous silica on drug release. Methods: Hydrophobization was evaluated by different methods, such as contact angle measurement, infrared spectroscopy and charge titration. After loading the drug (levodopa methyl ester hydrochloride, melevodopa hydrochloride, LDME) into the mesopores, drug content, particle size, specific surface area and homogeneity of the products were also analyzed. The amorphous state of LDME was verified by X-ray diffractometry and differential scanning calorimetry. Results: Drug release was characterized by a model-independent method using the so-called initial release rate parameter, as detailed in the article. The adaptability of this method was verified; the model fitted closely to the actual release results according to the similarity factor, independently of the release kinetics. Conclusions: The API was successfully loaded into the silica, resulting in a reduced surface area. The release studies indicated that the release rate significantly decreased (p < 0.05) with increasing hydrophobicity. The products with controlled release can reduce the off period frequency.
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Trzeciak K, Chotera-Ouda A, Bak-Sypien II, Potrzebowski MJ. Mesoporous Silica Particles as Drug Delivery Systems-The State of the Art in Loading Methods and the Recent Progress in Analytical Techniques for Monitoring These Processes. Pharmaceutics 2021; 13:pharmaceutics13070950. [PMID: 34202794 PMCID: PMC8309060 DOI: 10.3390/pharmaceutics13070950] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/17/2022] Open
Abstract
Conventional administration of drugs is limited by poor water solubility, low permeability, and mediocre targeting. Safe and effective delivery of drugs and therapeutic agents remains a challenge, especially for complex therapies, such as cancer treatment, pain management, heart failure medication, among several others. Thus, delivery systems designed to improve the pharmacokinetics of loaded molecules, and allowing controlled release and target specific delivery, have received considerable attention in recent years. The last two decades have seen a growing interest among scientists and the pharmaceutical industry in mesoporous silica nanoparticles (MSNs) as drug delivery systems (DDS). This interest is due to the unique physicochemical properties, including high loading capacity, excellent biocompatibility, and easy functionalization. In this review, we discuss the current state of the art related to the preparation of drug-loaded MSNs and their analysis, focusing on the newest advancements, and highlighting the advantages and disadvantages of different methods. Finally, we provide a concise outlook for the remaining challenges in the field.
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Insights into the ameliorating ability of mesoporous silica in modulating drug release in ternary amorphous solid dispersion prepared by hot melt extrusion. Eur J Pharm Biopharm 2021; 165:244-258. [PMID: 34020023 DOI: 10.1016/j.ejpb.2021.04.017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 04/16/2021] [Accepted: 04/19/2021] [Indexed: 11/23/2022]
Abstract
In this work, the application of various mesoporous silica grades in the preparation of stabilized ternary amorphous solid dispersions of Felodipine using hot melt extrusion was explored. We have demonstrated the effectiveness of mesoporous silica in these dispersions without the need for any organic solvents i.e., no pre-loading or immersion steps required. The physical and chemical properties, release profiles of the prepared formulations and the surface concentrations of the various molecular species were investigated in detail. Formulations containing 25 wt% and 50 wt% of Felodipine demonstrated enhanced stability and solubility of the drug substance compared to its crystalline counterpart. Based on the Higuchi model, ternary formulations exhibited a 2-step or 3-step release pattern which can be ascribed to the release of drug molecules from the organic polymer matrix and the external silica surface, followed by a release from the silica pore structure. According to the Korsmeyer-Peppas model, the release rate and release mechanism are governed by a complex quasi-Fickian release mechanism, in which multiple release mechanisms are occurring concurrently and consequently. Stability studies indicated that after 6 months storage of all formulation at 30% RH and 20 °C, Felodipine in all formulations remained stable in its amorphous state except for the formulation comprised of 40 wt% Syloid AL-1FP with a 50 wt% drug load.
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16
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Shin HW, Kim JE, Park YJ. Nanoporous Silica Entrapped Lipid-Drug Complexes for the Solubilization and Absorption Enhancement of Poorly Soluble Drugs. Pharmaceutics 2021; 13:pharmaceutics13010063. [PMID: 33418969 PMCID: PMC7825318 DOI: 10.3390/pharmaceutics13010063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 12/30/2020] [Accepted: 12/31/2020] [Indexed: 12/20/2022] Open
Abstract
This study aims to examine the contribution of nanoporous silica entrapped lipid-drug complexes (NSCs) in improving the solubility and bioavailability of dutasteride (DUT). An NSC was loaded with DUT (dissolved in lipids) and dispersed at a nanoscale level using an entrapment technique. NSC microemulsion formation was confirmed using a ternary phase diagram, while the presence of DUT and lipid entrapment in NSC was confirmed using scanning electron microscopy. Differential scanning calorimetry and X-ray diffraction revealed the amorphous properties of NSC. The prepared all NSC had excellent flowability and enhanced DUT solubility but showed no significant difference in drug content homogeneity. An increase in the lipid content of NSC led to an increase in the DUT solubility. Further the NSC were formulated as tablets using D-α tocopheryl polyethylene glycol 1000 succinate, glyceryl caprylate/caprate, and Neusilin®. The NSC tablets showed a high dissolution rate of 99.6% at 30 min. Furthermore, NSC stored for 4 weeks at 60 °C was stable during dissolution testing. Pharmacokinetic studies performed in beagle dogs revealed enhanced DUT bioavailability when administered as NSC tablets. NSC can be used as a platform to develop methods to overcome the technical and commercial limitations of lipid-based preparations of poorly soluble drugs.
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Affiliation(s)
- Hey-Won Shin
- College of Pharmacy, Ajou University, Worldcup-ro 206, Yeongtong-gu, Suwon-si 16499, Korea;
| | - Joo-Eun Kim
- Department of Pharmaceutical Engineering, Catholic University of Daegu, Hayang-Ro 13-13, Gyeongsan City 38430, Korea;
| | - Young-Joon Park
- College of Pharmacy, Ajou University, Worldcup-ro 206, Yeongtong-gu, Suwon-si 16499, Korea;
- Correspondence: ; Tel.: +82-031-219-3447
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Mehanna MM, Mneimneh AT, Domiati S, Allam AN. Tadalafil-Loaded Limonene-Based Orodispersible Tablets: Formulation, in vitro Characterization and in vivo Appraisal of Gastroprotective Activity. Int J Nanomedicine 2020; 15:10099-10112. [PMID: 33363369 PMCID: PMC7754088 DOI: 10.2147/ijn.s288552] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Accepted: 11/25/2020] [Indexed: 12/13/2022] Open
Abstract
Background Gastric ulcer is a prevalent disease with various etiologies, including non-steroidal anti-inflammatory drugs and alcohol consumption. This study aimed to explore the dual gastric protection effect of tadalafil and limonene as a self-nanoemulsifying system (SNES)-based orodispersible tablets. Methods Tadalafil-loaded limonene-based SNES was prepared, and the optimum formula was characterized in terms of particle size (PS), polydispersity index (PDI), and zeta potential (ZP) then loaded on various porous carriers to formulate lyophilized orodispersible tablets (ODTs). The ODTs were evaluated via determining hardness, friability, content uniformity, wetting, and disintegration time. The selected ODT was examined for its gastric ulcer protective effect against alcohol-induced ulcers in rat model. Ulcer score and ulcer index were computed for rats stomachs that were inspected macroscopically and histopathologically. Results The prepared SNES had droplet size of 104 nm, polydispersity index of 0.2, and zeta potential of −15.4 mV. From the different ODTs formulated, the formula with superior wetting time: 23.67 s, outstanding disintegration time: 28 s, accepted hardness value: 3.11 kg/cm2 and friability: 0.6% was designated. A significant gastroprotective effect of the unloaded and tadalafil-loaded ODTs was recognized compared to the omeprazole pre-treated group. Moreover, the histopathological analysis displayed very mild inflammation in the limonene-based ODTs group and intact structure in the tadalafil-loaded pre-treated animals. Conclusion Limonene gastroprotective effect functioned along with tadalafil in the form of SNES-incorporated ODTs could serve as a promising revenue for better efficacy in gastric ulcer prevention.
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Affiliation(s)
- Mohammed M Mehanna
- Department of Industrial Pharmacy, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt.,Department of Pharmaceutical Technology, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Amina Tarek Mneimneh
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Souraya Domiati
- Department of Pharmacology and Therapeutics, Faculty of Pharmacy, Beirut Arab University, Beirut, Lebanon
| | - Ahmed N Allam
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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Hanada M, Jermain SV, Thompson SA, Furuta H, Fukuda M, Williams RO. Ternary Amorphous Solid Dispersions Containing a High-Viscosity Polymer and Mesoporous Silica Enhance Dissolution Performance†. Mol Pharm 2020; 18:198-213. [PMID: 33291881 DOI: 10.1021/acs.molpharmaceut.0c00811] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The aim of this study was to evaluate the benefits of a ternary amorphous solid dispersion (ASD) that was designed as an immediate-release tablet with a high drug load (e.g., 40% w/w) to produce heightened maintenance of drug supersaturation during dissolution testing, which will be henceforth referred to as the "maintenance ability". Ternary ASD granules were produced by hot melt extrusion (HME) and were comprised of itraconazole (ITZ) 50%, hypromellose (HPMC) 20%, and mesoporous silica (XDP) 30%, where amorphous ITZ incorporated into HPMC was efficiently absorbed in XDP pores. The ternary ASD granules containing a high-viscosity HPMC (AF4M) produced a significantly heightened maintenance ability of drug supersaturation in neutral pH dissolution media in which crystalline ITZ solubility is below 1 μg/mL. The final tablet formulation contained 80% w/w of the ASD granules (40% w/w ITZ), had an acceptable size, and exhibited both sufficient tablet hardness and disintegration. The dissolution behavior of the ternary ASD tablet exhibited a supersaturation maintenance ability similar to that of the ASD granules. Under neutral conditions, the ternary ASD tablet showed immediate and higher ITZ release compared with the binary ASD tablets, and this phenomenon could be explained by the difference in ITZ/AF4M particle size in the tablet. In high-resolution scanning electron microscopy (SEM), it was observed that ITZ and AF4M in the ternary formulation could easily form nano-sized particles (<1 μm) during the absorption process into/onto XDP pores prepared by HME, which contributed to the immediate ITZ release from the ternary ASD tablet under neutral pH conditions. Therefore, the ternary ASD containing high-viscosity HPMC and mesoporous silica prepared by HME made it possible to design a high ASD content, small-size tablet with an ideal dissolution profile in biorelevant media, and we expect that this technology can be applied for continuous HME ASD manufacturing.
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Affiliation(s)
- Masataka Hanada
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, 2409 University Avenue, A1920, Austin, Texas 78712, United States.,CMC Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., 1848 Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Scott V Jermain
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, 2409 University Avenue, A1920, Austin, Texas 78712, United States.,Formulation and Process Development, Gilead Sciences Inc., 333 Lakeside Drive, Foster City, California 94404, United States
| | - Stephen A Thompson
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, 2409 University Avenue, A1920, Austin, Texas 78712, United States
| | - Hirosuke Furuta
- CMC Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., 1848 Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Mamoru Fukuda
- CMC Research Laboratory, Watarase Research Center, Kyorin Pharmaceutical Co., Ltd., 1848 Nogi, Nogi-machi, Shimotsuga-gun, Tochigi 329-0114, Japan
| | - Robert O Williams
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, University of Texas at Austin, 2409 University Avenue, A1920, Austin, Texas 78712, United States
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Osmotic pump tablets with solid dispersions synergized by hydrophilic polymers and mesoporous silica improve in vitro/in vivo performance of cilostazol. Int J Pharm 2020; 588:119759. [DOI: 10.1016/j.ijpharm.2020.119759] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 07/26/2020] [Accepted: 08/08/2020] [Indexed: 01/01/2023]
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Development of a Solid Formulation Containing a Microemulsion of a Novel Artemisia Extract with Nematocidal Activity for Oral Administration. Pharmaceutics 2020; 12:pharmaceutics12090873. [PMID: 32937773 PMCID: PMC7559406 DOI: 10.3390/pharmaceutics12090873] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2020] [Revised: 09/09/2020] [Accepted: 09/10/2020] [Indexed: 01/09/2023] Open
Abstract
Background: Intestinal nematode infections are usually treated with benzimidazole drugs, but the emergence of resistance to these drugs has led to an increasing demand of new anthelmintic strategies. A new microemulsion formulation (ME) consisting of an Artemisia absinthium extract with proven nematocidal efficacy was previously developed. The aim of our study is to implement a D-optimal mixture design methodology to increase the amount of a silica material (loaded with this ME) in a tablet formulation, considering its tensile strength and disintegration time. Methods: 16 experiments or combinations of the 6 tablet components (loaded silica, microcrystalline cellulose, polyvinylpyrrolidone, croscarmellose, Syloid® 244 FP and magnesium stearate) were assessed. Tensile strength and disintegration time models were developed, and an optimization process was carried out. Results: Tensile strength was improved by increasing the polyvinylpyrrolidone content, while croscarmellose decreased the disintegration time. The optimized powder mixture contains 49.7% w/w of the loaded silica material. A compression force of 12 kN was applied to the powder mixture to form tablets with a tensile strength of 2.0 MPa and a disintegration time of 3.8 min. Conclusions: Our results show that D-optimal mixture designs provide a promising approach to formulate liquid-loaded silica materials.
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Mechanistic aspects of drug loading in liquisolid systems with hydrophilic lipid-based mixtures. Int J Pharm 2020; 578:119099. [DOI: 10.1016/j.ijpharm.2020.119099] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/27/2020] [Accepted: 01/28/2020] [Indexed: 02/07/2023]
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Askalany A, Olkis C, Bramanti E, Lapshin D, Calabrese L, Proverbio E, Freni A, Santori G. Silica-Supported Ionic Liquids for Heat-Powered Sorption Desalination. ACS APPLIED MATERIALS & INTERFACES 2019; 11:36497-36505. [PMID: 31512475 DOI: 10.1021/acsami.9b07602] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This work investigates the application of novel sorption materials to heat-powered desalination systems. Two ionic liquids 1-ethyl-3-methylimidazolium acetate (Emim-Ac) and 1-ethyl-3-methylimidazolium methanesulfonate (Emim-Oms) were impregnated in two silica supports, namely, Syloid AL-1FP and Syloid 72FP. Emim-Ac and Emim-Oms composite sorbents have been compared on morphology, water vapor sorption equilibrium, and heat of sorption. Fourier-transform infrared spectroscopy shows that the ionic liquid partly self-organizes on the silica surface. When used in a sorption desalination process powered by low grade heat at 60 °C, these composites have exceptionally high theoretical working capacities ranging from 1 to 1.7 gwater gsorbent-1. Experimental tests on a lab scale desalinator show that Emim-Ac/Syloid 72FP in real operating conditions can produce 25 kgwater kgsorbent-1 day-1. To date, this yield is 2.5 times higher than the best achieved with silica gel.
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Affiliation(s)
- Ahmed Askalany
- Mechanical Engineering Department, Faculty of Industrial Education , Sohag University , Sohag 82524 , Egypt
- School of Engineering, Institute for Materials and Processes , The University of Edinburgh , Sanderson Building, The King's Buildings, Robert Stevenson Road , Edinburgh , Scotland EH9 3FB , U.K
| | - Christopher Olkis
- School of Engineering, Institute for Materials and Processes , The University of Edinburgh , Sanderson Building, The King's Buildings, Robert Stevenson Road , Edinburgh , Scotland EH9 3FB , U.K
| | - Emilia Bramanti
- Consiglio Nazionale delle Ricerche , Istituto di Chimica dei Composti Organometallici (CNR-ICCOM) , Via G. Moruzzi, 1 , Pisa 56124 , Italy
| | - Dmitry Lapshin
- School of Engineering, Institute for Materials and Processes , The University of Edinburgh , Sanderson Building, The King's Buildings, Robert Stevenson Road , Edinburgh , Scotland EH9 3FB , U.K
| | - Luigi Calabrese
- Department of Engineering , University of Messina , Messina 98122 , Italy
| | - Edoardo Proverbio
- Department of Engineering , University of Messina , Messina 98122 , Italy
| | - Angelo Freni
- Consiglio Nazionale delle Ricerche , Istituto di Chimica dei Composti Organometallici (CNR-ICCOM) , Via G. Moruzzi, 1 , Pisa 56124 , Italy
| | - Giulio Santori
- School of Engineering, Institute for Materials and Processes , The University of Edinburgh , Sanderson Building, The King's Buildings, Robert Stevenson Road , Edinburgh , Scotland EH9 3FB , U.K
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Prajapat MD, Butani SB, Gohel MC. Liquisolid: A promising technique to improve dissolution efficiency and bioavailability of poorly water soluble nimodipine. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101135] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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24
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Stenger Moura F, Perioli L, Pagano C, Vivani R, Ambrogi V, Bresolin T, Ricci M, Schoubben A. Chitosan composite microparticles: A promising gastroadhesive system for taxifolin. Carbohydr Polym 2019; 218:343-354. [DOI: 10.1016/j.carbpol.2019.04.075] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/23/2019] [Accepted: 04/24/2019] [Indexed: 02/06/2023]
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25
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Mura P, Valleri M, Fabianelli E, Maestrelli F, Cirri M. Characterization and evaluation of different mesoporous silica kinds as carriers for the development of effective oral dosage forms of glibenclamide. Int J Pharm 2019; 563:43-52. [PMID: 30926527 DOI: 10.1016/j.ijpharm.2019.03.049] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2019] [Revised: 03/21/2019] [Accepted: 03/25/2019] [Indexed: 12/16/2022]
Abstract
This work evaluated the suitability of various mesoporous silicas as carriers for developing an oral formulation endowed with improved dissolution properties of glibenclamide, hypoglycemic agent poorly water-soluble. The different silicas were examined for solid-state, morphology, and technological and physical-chemical properties (granulometry, specific surface area, wettability, water content, water activity, apparent density, flowability, compactability). A pairwise comparison allowed a ranking, by importance order, of the parameters examined and, for each parameter, a score was assigned to each silica type. Data statistical treatment (JMP software) indicated Neusilin®US2 and Syloid®XDP3150 as the best materials. Different loading methods were tested: physical mixing; addition of drug dissolved in a volatile solvent, subsequently evaporated; addition of drug dissolved in a solvent. Methods involving drug dissolution enabled drug amorphization and intimate dispersion within the silica porous structure. Dissolution tests indicated Syloid®XDP3150 as the most effective silica in enhancing drug dissolution properties, providing a release rate clearly faster than from commercial tablets. Drug amorphization, improved wettability, increased surface area of the drug, finely dispersed into the highly porous silica, were the main factors responsible for this finding. Moreover, the obtained results suggested that drug dissolution rate can be properly tuned, based on the suited choice of the silica type.
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Affiliation(s)
- Paola Mura
- Department of Chemistry, Florence University, via Schiff 6, Sesto Fiorentino, Florence, Italy.
| | - Maurizio Valleri
- A. Menarini Manufacturing Logistics and Services s.r.l. (AMMLS), Florence, Italy
| | - Elisa Fabianelli
- Department of Chemistry, Florence University, via Schiff 6, Sesto Fiorentino, Florence, Italy
| | - Francesca Maestrelli
- A. Menarini Manufacturing Logistics and Services s.r.l. (AMMLS), Florence, Italy
| | - Marzia Cirri
- Department of Chemistry, Florence University, via Schiff 6, Sesto Fiorentino, Florence, Italy
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Hanada M, Jermain SV, Lu X, Su Y, Williams RO. Predicting physical stability of ternary amorphous solid dispersions using specific mechanical energy in a hot melt extrusion process. Int J Pharm 2018; 548:571-585. [DOI: 10.1016/j.ijpharm.2018.07.029] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/09/2018] [Accepted: 07/09/2018] [Indexed: 11/15/2022]
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