1
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Bertoni S, Albertini B, Passerini N. Effect of polyoxylglycerides-based excipients (Gelucire®) on ketoprofen amorphous solubility and crystallization from the supersaturated state. Int J Pharm 2025; 669:125030. [PMID: 39645060 DOI: 10.1016/j.ijpharm.2024.125030] [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: 08/22/2024] [Revised: 12/02/2024] [Accepted: 12/02/2024] [Indexed: 12/09/2024]
Abstract
Polyoxylglycerides-based solid mixtures, commercially known as Gelucire®, are excipients commonly used for bioavailability improvement of poorly water-soluble drugs. However, their effect on solutions containing hydrophobic drugs above crystalline solubility has not yet been explored. The goal of this study was to investigate the impact of a mix of two commercial Gelucire® with high HLB values (Gelucire®50/13 and Gelucire®48/16) on the amorphous solubility and crystallization from supersaturated solutions of ketoprofen, used as model drug. The results evidenced a strong interaction between Gelucire® components and the drug-rich nanodroplets generated upon liquid-liquid phase separation. This led to two important consequences: on one hand, the drug amorphous solubility was decreased, together with the amorphous-to-crystalline solubility ratio; on the other hand, the enlargement and coalescence of the drug-rich droplets were prevented. This stabilizing effect towards the drug-rich phase was comparable to, or even stronger than, that obtained with traditional amorphous polymers (PVP or HPMC) and contributed to inhibiting drug crystallization. Notably, the impact of Gelucire® on drug crystallization from the supersaturated state depended on its micellar behaviour: the monomeric form (below 50 μg/mL) accelerated the formation of crystals, whereas pre-micellar aggregates (50-500 μg/mL) and solubilizing micelles (above 500 μg/mL) inhibited drug crystallization. These findings will contribute to a better understanding of the behaviour of supersaturated drug solutions in the presence of Gelucire® and will facilitate the rational design of supersaturating drug delivery systems containing these excipients.
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Affiliation(s)
- Serena Bertoni
- Department of Pharmacy and Biotechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Beatrice Albertini
- 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
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2
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Briones Nieva CA, Real JP, Campos SN, Romero AI, Villegas M, Gonzo EE, Bermúdez JM, Palma SD, Cid AG. Modeling and evaluation of ivermectin release kinetics from 3D-printed tablets. Ther Deliv 2024; 15:845-858. [PMID: 39434694 PMCID: PMC11497972 DOI: 10.1080/20415990.2024.2412511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 10/01/2024] [Indexed: 10/23/2024] Open
Abstract
Aim: This study focused on evaluating the influence of geometric dimensions on the drug release kinetics of 3D-printed tablets.Materials & methods: An ink based on Gelucire 50/13 was prepared to print ivermectin-loaded tablets. The ink was characterized physicochemically and tablet dissolution tests were carried out.Results: The results confirmed the suitability of the ink for 3D printing at a temperature >46°C. Changes in the crystallinity of ivermectin were observed without chemical interactions with the polymer. 3D printed tablets with varied proportional sizes showed dual behavior in their release profiles, while tablets with only thickness reduction exhibited zero-order kinetics.Conclusion: These findings highlight the versatility of 3D printing to create systems with specific and customized release profiles.
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Affiliation(s)
- Cintia Alejandra Briones Nieva
- Instituto de Investigaciones para la Industria Química, Universidad Nacional de Salta - Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Bolivia 5150, Salta, 4400, Argentina
| | - Juan Pablo Real
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica, Universidad Nacional de Córdoba - Consejo Nacional de Investigaciones Científicas y Técnicas, Haya de la Torre y Medina Allende, Ciudad Universitaria, Córdoba, 5000, Argentina
| | - Santiago Nicolás Campos
- Instituto de Investigaciones para la Industria Química, Universidad Nacional de Salta - Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Bolivia 5150, Salta, 4400, Argentina
| | - Analía Irma Romero
- Instituto de Investigaciones para la Industria Química, Universidad Nacional de Salta - Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Bolivia 5150, Salta, 4400, Argentina
| | - Mercedes Villegas
- Instituto de Investigaciones para la Industria Química, Universidad Nacional de Salta - Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Bolivia 5150, Salta, 4400, Argentina
| | - Elio Emilio Gonzo
- Instituto de Investigaciones para la Industria Química, Universidad Nacional de Salta - Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Bolivia 5150, Salta, 4400, Argentina
| | - José María Bermúdez
- Instituto de Investigaciones para la Industria Química, Universidad Nacional de Salta - Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Bolivia 5150, Salta, 4400, Argentina
| | - Santiago Daniel Palma
- Unidad de Investigación y Desarrollo en Tecnología Farmacéutica, Universidad Nacional de Córdoba - Consejo Nacional de Investigaciones Científicas y Técnicas, Haya de la Torre y Medina Allende, Ciudad Universitaria, Córdoba, 5000, Argentina
| | - Alicia Graciela Cid
- Instituto de Investigaciones para la Industria Química, Universidad Nacional de Salta - Consejo Nacional de Investigaciones Científicas y Técnicas, Av. Bolivia 5150, Salta, 4400, Argentina
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3
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Dahma Z, Ibáñez-Escribano A, Fonseca-Berzal C, García-Rodríguez JJ, Álvarez-Álvarez C, Torrado-Salmerón C, Torrado-Santiago S, de la Torre-Iglesias PM. Development, Characterization, and Cellular Toxicity Evaluation of Solid Dispersion-Loaded Hydrogel Based on Indomethacin. Polymers (Basel) 2024; 16:2174. [PMID: 39125200 PMCID: PMC11315005 DOI: 10.3390/polym16152174] [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: 07/02/2024] [Revised: 07/24/2024] [Accepted: 07/29/2024] [Indexed: 08/12/2024] Open
Abstract
Indomethacin (IND) as a non-selective cyclooxygenase 1 and 2 inhibitor administered orally causes numerous adverse effects, mostly related to the gastrointestinal tract. Moreover, when applied exogenously in topical preparations, there are obstacles to its permeation through the stratum corneum due to its low water solubility and susceptibility to photodegradation. In this work, solid dispersions (SDs) of IND with low-substituted hydroxypropyl cellulose (LHPC) were developed. The IND-SDs were incorporated into a hydroxypropyl guar (HPG) hydrogel to enhance drug solubility on the skin. The hydrogels were characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), powder X-ray diffraction (XRPD), Fourier-transform infrared spectroscopy (FTIR), viscosity, drug release, and unspecific cytotoxicity in mammalian cells. SEM showed a highly porous structure for SD hydrogels. DSC and XRPD studies showed that amorphous IND species were formed; therefore, these hydrogels exhibited superior drug release in comparison with IND raw material hydrogels. FTIR evidenced the presence of the hydrogen bond in the SD hydrogel. The rheology parameter viscosity increased across gels formulated with SDs in comparison with hydrogels with pure IND. In addition, IND-SD hydrogels combine the advantages of a suitable viscosity for dermal use and no potentially hazardous skin irritation. This study suggests that the formulated IND-SD hydrogels represent a suitable candidate for topical administration.
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Affiliation(s)
- Zaid Dahma
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (Z.D.); (C.Á.-Á.); (C.T.-S.)
| | - Alexandra Ibáñez-Escribano
- Departamento de Microbiología y Parasitología, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (A.I.-E.); (C.F.-B.); (J.J.G.-R.)
| | - Cristina Fonseca-Berzal
- Departamento de Microbiología y Parasitología, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (A.I.-E.); (C.F.-B.); (J.J.G.-R.)
| | - Juan José García-Rodríguez
- Departamento de Microbiología y Parasitología, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (A.I.-E.); (C.F.-B.); (J.J.G.-R.)
| | - Covadonga Álvarez-Álvarez
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (Z.D.); (C.Á.-Á.); (C.T.-S.)
- Instituto Universitario de Farmacia Industrial (IUFI), Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - Carlos Torrado-Salmerón
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (Z.D.); (C.Á.-Á.); (C.T.-S.)
- Instituto Universitario de Farmacia Industrial (IUFI), Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - Santiago Torrado-Santiago
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (Z.D.); (C.Á.-Á.); (C.T.-S.)
- Instituto Universitario de Farmacia Industrial (IUFI), Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
| | - Paloma Marina de la Torre-Iglesias
- Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain; (Z.D.); (C.Á.-Á.); (C.T.-S.)
- Instituto Universitario de Farmacia Industrial (IUFI), Complutense University of Madrid, Plaza Ramón y Cajal s/n, 28040 Madrid, Spain
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4
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Sang Z, Xu L, Ding R, Wang M, Yang X, Li X, Zhou B, Gou K, Han Y, Liu T, Chen X, Cheng Y, Yang H, Li H. Nanoparticles exhibiting virus-mimic surface topology for enhanced oral delivery. Nat Commun 2023; 14:7694. [PMID: 38001086 PMCID: PMC10673925 DOI: 10.1038/s41467-023-43465-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2023] [Accepted: 11/10/2023] [Indexed: 11/26/2023] Open
Abstract
The oral delivery of nano-drug delivery systems (Nano-DDS) remains a challenge. Taking inspirations from viruses, here we construct core-shell mesoporous silica nanoparticles (NPs, ~80 nm) with virus-like nanospikes (VSN) to simulate viral morphology, and further modified VSN with L-alanine (CVSN) to enable chiral recognition for functional bionics. By comparing with the solid silica NPs, mesoporous silica NPs and VSN, we demonstrate the delivery advantages of CVSN on overcoming intestinal sequential barriers in both animals and human via multiple biological processes. Subsequently, we encapsulate indomethacin (IMC) into the nanopores of NPs to mimic gene package, wherein the payloads are isolated from bio-environments and exist in an amorphous form to increase their stability and solubility, while the chiral nanospikes multi-sited anchor and chiral recognize on the intestinal mucosa to enhance the penetrability and ultimately improve the oral adsorption of IMC. Encouragingly, we also prove the versatility of CVSN as oral Nano-DDS.
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Affiliation(s)
- Zhentao Sang
- School of Pharmacy, China Medical University, Shenyang, 110122, China
- School of Intelligent Medicine, China Medical University, Shenyang, 110122, China
| | - Lu Xu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, 110016, China
| | - Renyu Ding
- Department of Intensive Care Unit, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Minjun Wang
- School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Xiaoran Yang
- School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Xitan Li
- Department of Intensive Care Unit, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Bingxin Zhou
- School of Pharmacy, China Medical University, Shenyang, 110122, China
| | - Kaijun Gou
- Department of Pathology, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Yang Han
- Institute of Tibetan Plateau, Southwest Minzu University, Chengdu, 610225, China
| | - Tingting Liu
- Department of Organ Transplantation and Hepatobiliary, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Xuchun Chen
- Department of Organ Transplantation and Hepatobiliary, The First Hospital of China Medical University, Shenyang, 110001, China
| | - Ying Cheng
- Department of Organ Transplantation and Hepatobiliary, The First Hospital of China Medical University, Shenyang, 110001, China.
| | - Huazhe Yang
- School of Intelligent Medicine, China Medical University, Shenyang, 110122, China.
| | - Heran Li
- School of Pharmacy, China Medical University, Shenyang, 110122, China.
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5
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Goo YT, Won YH, Hong SH, Choi JY, Sin GH, Kim CH, Jung HM, Choi YW. Optimization of a solidified micelle formulation for enhanced oral bioavailability of atorvastatin calcium using statistical experimental design. Pharm Dev Technol 2023; 28:479-491. [PMID: 37099663 DOI: 10.1080/10837450.2023.2208206] [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: 04/28/2023]
Abstract
To enhance the oral bioavailability of atorvastatin calcium (ATV), a novel solidified micelle (S-micelle) was developed. Two surfactants, Gelucire 48/16 (G48) and Tween 20 (T20), were employed for micelle formation, and two solid carriers (SC), Florite PS-10 (FLO) and Vivapur 105 (VP105), were selected as solid carriers. The S-micelle was optimized using a Box-Behnken design with three independent variables, including G48:T20 (X1, 1.8:1), SC:G48 + T20 (X2, 0.65:1), and FLO:VP105 (X3, 1.4:0.6), resulting in a droplet size (Y1) of 198.4 nm, dissolution efficiency at 15 min in the pH 1.2 medium (Y2) of 47.6%, Carr's index (Y3) of 16.9, and total quantity (Y4) of 562.5 mg. The optimized S-micelle resulted in good correlation showing percentage prediction values less than 10%. The optimized S-micelle formed a nanosized dispersion in the aqueous phase, with a higher dissolution rate than raw ATV and crushed Lipitor®. The optimized S-micelle improved the relative bioavailability of oral ATV (25 mg equivalent/kg) in rats by approximately 509% and 271% compared to raw ATV and crushed Lipitor®, respectively. In conclusion, the optimized S-micelle possesses great potential for the development of solidified formulations for improved oral absorption of poorly water-soluble drugs.
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Affiliation(s)
- Yoon Tae Goo
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Yong-Hoon Won
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Sun Ho Hong
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Ji Yeh Choi
- York University, Department of Psychology, 4700 Keele St., Toronto, Ontario, Canada
| | - Gi Hyeong Sin
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Chang Hyun Kim
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Hyun Min Jung
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
| | - Young Wook Choi
- College of Pharmacy, Chung-Ang University, 84 Heuksuk-ro, Dongjak-gu, Seoul 06974, Republic of Korea
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6
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Bertoni S, Albertini B, Passerini N. Investigating the physicochemical properties of solid dispersions based on semicrystalline carriers: A case study with ketoprofen. Int J Pharm 2023; 632:122576. [PMID: 36596317 DOI: 10.1016/j.ijpharm.2022.122576] [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: 09/06/2022] [Revised: 12/28/2022] [Accepted: 12/29/2022] [Indexed: 01/01/2023]
Abstract
Hydrophilic semicrystalline carriers represent an alternative to amorphous polymers due to their low melting temperature, useful for the production of solid dispersions (SDs) by melting-based technologies. This research aims to compare SDs of ketoprofen (KET) and three different semicrystalline carriers (PEG, Poloxamer and Gelucire) regarding miscibility, phase behavior, molecular interactions and stability. KET was chosen owing to its low solubility and high glass forming ability. Estimation of drug-excipient miscibility was performed by Flory-Huggins theory. Negative Gibbs free energy indicated a spontaneous mixing of KET with the three carriers and miscibility in the order PEG > Poloxamer > Gelucire. SDs up to 40 % w/w of drug were produced by melting process at a temperature below KET melting point. Characterization of SDs was performed by differential scanning calorimetry, polarized light microscopy and powder X-ray diffraction. In case of PEG and Poloxamer, the drug incorporation did not affect carrier crystallinity, while KET was in the amorphous state. Differently, KET retarded the crystallization of Gelucire and at high drug loadings the SDs were amorphous and semisolid. FT-IR analysis revealed a strong interaction between KET and the three carriers. Finally, PEG-based SDs above 20 % KET loading displayed drug crystallization after 6 months of storage; while Poloxamer and Gelucire-based SDs showed KET crystallization only at 40 % KET. Due to its less hydrophilic character and limited water uptake, Gelucire showed the best stability among the three excipients.
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Affiliation(s)
- Serena Bertoni
- Department of Pharmacy and BioTechnology, PharmTech Lab, Alma Mater Studiorum-University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Beatrice Albertini
- Department of Pharmacy and BioTechnology, PharmTech Lab, Alma Mater Studiorum-University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy
| | - Nadia Passerini
- Department of Pharmacy and BioTechnology, PharmTech Lab, Alma Mater Studiorum-University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy.
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7
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Ouyang H, Ang SJ, Lee ZY, Hiew TN, Heng PWS, Chan LW. Effect of drug load and lipid-wax blends on drug release and stability from spray-congealed microparticles. Pharm Dev Technol 2022; 27:1069-1082. [PMID: 36422997 DOI: 10.1080/10837450.2022.2152048] [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: 11/27/2022]
Abstract
This study was designed to evaluate paraffin wax as a potential controlled release matrix for spray congealing and its impact on drug release and stability of the microparticles. Paraffin wax can form a hydrophobic barrier to moisture and reduce drug degradation besides retarding drug release in the gastrointestinal tract. More hydrophilic lipid-based additives can be incorporated to modulate the drug release through the paraffin wax barrier. This study reports the findings of lipid-wax formulations at preserving the stability of moisture-sensitive drugs in spray-congealed microparticles. Aspirin-loaded microparticles formulated with different drug loads, lipid additives, and lipid:wax ratios were produced by spray congealing. Stearic acid (SA), cetyl alcohol (CA), and cetyl ester (CE) were the lipid additives studied. The microparticles were evaluated for yield, encapsulation efficiency, particle size, drug stability, and release. CE exhibited the greatest effect on increasing drug release, followed by CA and SA. Dissolution profiles showed the best fit to Weibull kinetic model. The degree of drug degradation was low, with CA imparting the least protective effect, followed by SA and CE. Paraffin wax is useful for preserving the stability of moisture-sensitive aspirin and retarding its release from spray-congealed microparticles. The addition of lipid additives modulated drug release without compromising drug stability.
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Affiliation(s)
- Hongyi Ouyang
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Soon Jun Ang
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Zong Yang Lee
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Tze Ning Hiew
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Paul Wan Sia Heng
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Lai Wah Chan
- GEA-NUS Pharmaceutical Processing Research Laboratory, Department of Pharmacy, National University of Singapore, Singapore, Singapore
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8
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Mehio N, Frericks Schmidt HL, Wood GPF, Hancock BC, Shanker RM, Bartlett JA, Shamblin SL. Binary isobaric phase diagrams of stearyl alcohol-poloxamer 407 formulations in the molten and solid state. Int J Pharm 2022; 623:121908. [PMID: 35700869 DOI: 10.1016/j.ijpharm.2022.121908] [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: 04/12/2022] [Revised: 05/25/2022] [Accepted: 06/08/2022] [Indexed: 11/30/2022]
Abstract
Multiparticulate formulations allow for the design of specialized pharmaceutical dosage forms that cater to the needs of a wide range of patient demographics, such as pediatric and geriatric populations, by affording control over the release rate and facilitating the formulation of fixed-dose combination drugs. Melt spray-congealing (MSC) is a method for preparing multiparticulate dosage forms from a suspension or solid solution of active pharamaceutical ingredients (API) and a molten carrier matrix. Stearyl alcohol and poloxamer 407 mixtures are widely used as carrier matrices in MSC microsphere formulations. In this report, the phase equilibria of stearyl alcohol-poloxamer 407 mixtures were investigated by generating binary phase diagrams of composition, i.e. weight/weight percent of poloxamer 407 in stearyl alcohol, and temperature in the molten form and the solid state. The phase equilibria of the molten state were characterized by 1H NMR measurements. The miscibility curves of stearyl alcohol-poloxamer 407 molten mixtures revealed that stearyl alcohol and poloxamer 407 are not miscible in all proportions and that miscibility substantially increases with temperature. The phase equilibria of the solid state were characterized by DSC and PXRD experiments. The phase diagrams of the solid state indicate that stearyl alcohol and poloxamer 407 crystallize and melt separately and, thus, do not form a eutectic or a single phase. The phases equilibria of the bulk mixtures were compared to the phases observed in placebo MSC microspheres and it was determined that the microspheres consist of a mixture of thermodynamically stable and metastable stearyl alcohol crystals immediately after manufacture.
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Affiliation(s)
- Nada Mehio
- Pfizer Worldwide Research & Development, Pharmaceutical Sciences, Pfizer Inc., Groton, CT 06340, USA.
| | | | - Geoffrey P F Wood
- Pfizer Worldwide Research & Development, Pharmaceutical Sciences, Pfizer Inc., Groton, CT 06340, USA
| | - Bruno C Hancock
- Pfizer Worldwide Research & Development, Pharmaceutical Sciences, Pfizer Inc., Groton, CT 06340, USA
| | - Ravi M Shanker
- Pfizer Worldwide Research & Development, Pharmaceutical Sciences, Pfizer Inc., Groton, CT 06340, USA
| | - Jeremy A Bartlett
- Pfizer Worldwide Research & Development, Pharmaceutical Sciences, Pfizer Inc., Groton, CT 06340, USA
| | - Sheri L Shamblin
- Pfizer Worldwide Research & Development, Pharmaceutical Sciences, Pfizer Inc., Groton, CT 06340, USA
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9
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Figueiredo JDA, Silva CRDP, Souza Oliveira MF, Norcino LB, Campelo PH, Botrel DA, Borges SV. Microencapsulation by spray chilling in the food industry: Opportunities, challenges, and innovations. Trends Food Sci Technol 2022; 120:274-287. [PMID: 36569414 PMCID: PMC9759634 DOI: 10.1016/j.tifs.2021.12.026] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2021] [Revised: 12/10/2021] [Accepted: 12/21/2021] [Indexed: 12/27/2022]
Abstract
Background The increasing demand for healthy eating habits and the emergence of the COVID-19 pandemic, which resulted in a health crisis and global economic slowdown, has led to the consumption of functional and practical foods. Bioactive ingredients can be an alternative for healthy food choices; however, most functional compounds are sensitive to the adverse conditions of processing and digestive tract, impairing its use in food matrices, and industrial-scale applications. Microencapsulation by spray chilling can be a viable alternative to reduce these barriers in food processing. Scope and approach This review discusses the use of spray chilling technique for microencapsulation of bioactive food ingredients. Although this technology is known in the pharmaceutical industry, it has been little exploited in the food sector. General aspects of spray chilling, the process parameters, advantages, and disadvantages are addressed. The feasibility and stability of encapsulated bioactive ingredients in food matrices and the bioavailability in vitro of solid lipid microparticles produced by spray chilling are also discussed. Main findings and conclusions Research on the microencapsulation of bioactive ingredients by spray chilling for use in foods has shown the effectiveness of this technique to encapsulate bioactive compounds for application in food matrices. Solid microparticles produced by spray chilling can improve the stability and bioavailability of bioactive ingredients. However, further studies are required, including the use of lipid-based encapsulating agents, process parameters, and novel formulations for application in food, beverages, and packaging, as well as in vivo studies to prove the effectiveness of the formulations.
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Affiliation(s)
- Jayne de Abreu Figueiredo
- Department of Food Science (DCA), Federal University of Lavras, P.O. Box 3037, 37200-900, Lavras, MG, Brazil,Corresponding author. Federal University of Lavras, Department of Food Science (DCA), Laboratory of Packaging and Encapsulation, P.O. Box 3037, 37200-000, Lavras/Minas Gerais, Brazil
| | - Carlos Ramon de Paula Silva
- Department of Food Science (DCA), Federal University of Lavras, P.O. Box 3037, 37200-900, Lavras, MG, Brazil
| | | | - Laís Bruno Norcino
- Biomaterials Engineering, Federal University of Lavras, P.O. Box 3037, 37200-900, Lavras, MG, Brazil
| | - Pedro Henrique Campelo
- Faculty of Agrarian Science, Federal University of Amazonas, 69077-000, Manaus, AM, Brazil
| | - Diego Alvarenga Botrel
- Department of Food Science (DCA), Federal University of Lavras, P.O. Box 3037, 37200-900, Lavras, MG, Brazil
| | - Soraia Vilela Borges
- Department of Food Science (DCA), Federal University of Lavras, P.O. Box 3037, 37200-900, Lavras, MG, Brazil
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10
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Bertoni S, Hasa D, Albertini B, Perissutti B, Grassi M, Voinovich D, Passerini N. Better and greener: sustainable pharmaceutical manufacturing technologies for highly bioavailable solid dosage forms. Drug Deliv Transl Res 2022; 12:1843-1858. [PMID: 34988827 DOI: 10.1007/s13346-021-01101-6] [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] [Accepted: 11/29/2021] [Indexed: 11/03/2022]
Abstract
In the last decades, Green Chemistry has been gaining widespread attention within the pharmaceutical field. It is thus very important to bring more sustainable approaches into the design and manufacture of effective oral drug delivery systems. This review focuses on spray congealing and mechanochemical activation, two technologies endorsing different principles of green chemistry, and at the same time, addressing some of the challenges related to the transformation of poorly water-soluble drugs in highly bioavailable solid dosage forms. We therefore present an overview of the basic principles, equipment, and application of these particle-engineering technologies, with specific attention to case studies carried out by the groups working in Italian Universities.
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Affiliation(s)
- Serena Bertoni
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via S. Donato 19/2, 40127, Bologna, Italy
| | - Dritan Hasa
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Piazzale Europa 1, 34127, Trieste, Italy
| | - Beatrice Albertini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via S. Donato 19/2, 40127, Bologna, Italy
| | - Beatrice Perissutti
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Piazzale Europa 1, 34127, Trieste, Italy
| | - Mario Grassi
- Department of Engineering and Architecture, University of Trieste, Via Alfonso Valerio, 6/1, 34127, Trieste, Italy
| | - Dario Voinovich
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Piazzale Europa 1, 34127, Trieste, Italy
| | - Nadia Passerini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum-University of Bologna, Via S. Donato 19/2, 40127, Bologna, Italy.
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11
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Jiang T, Han L, Lu E, He W, Du S, Sha X. Design and Characterization of HY-038 Solid Dispersions via Spray Drying Technology: In Vitro and In Vivo Evaluations. AAPS PharmSciTech 2021; 22:267. [PMID: 34750638 DOI: 10.1208/s12249-021-02135-2] [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: 06/13/2021] [Accepted: 09/07/2021] [Indexed: 12/21/2022] Open
Abstract
The aim of this study was to prepare HY-038 solid dispersions (SDs) with single carrier at high drug loading and then forming a tablet to enhance solubility, dissolution, and bioavailability via spray drying technology. At the same time, we hope to develop a more convenient in vitro method to predict the absorption behavior of different formulations in vivo. Different solid dispersions, varying in drug/polymer ratios, were prepared. Infrared spectroscopy, differential scanning calorimetry, scanning electron microscope, and X-ray diffraction were used to perform solid-state characterizations of the pure drug and SDs. Contact angle of water, dissolution in pH = 6.8 phosphate buffer, and in vivo absorption in dogs were studied. As a result, solid-state characterization demonstrated the transformation of the crystalline HY-038 to an amorphous state in the solid dispersions, and the in vivo exposure followed with the trend of the dissolution curve combined with contact angle. Compared with the prototype formulation, the Cmax and AUC0-∞ of optimized formulation SD2 (HY-038-HPMCAS 3:1) increased by about 5 ~ 9 times at the same dose. More importantly, the SD2 formulation showed approximately linear increases in Cmax and AUC0-∞ as the dose increased from 50 to 100 mg, while the prototype formulation reached absorption saturation at 50 mg. SD2 (HY-038-HPMCAS 3:1) was selected as the best formulation for the downstream development.
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12
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Gou K, Wang Y, Guo X, Wang Y, Bian Y, Zhao H, Guo Y, Pang Y, Xie L, Li S, Li H. Carboxyl-functionalized mesoporous silica nanoparticles for the controlled delivery of poorly water-soluble non-steroidal anti-inflammatory drugs. Acta Biomater 2021; 134:576-592. [PMID: 34280558 DOI: 10.1016/j.actbio.2021.07.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 06/06/2021] [Accepted: 07/12/2021] [Indexed: 11/27/2022]
Abstract
The purpose of this study was to investigate the delivery of poorly water-soluble non-steroidal anti-inflammatory drugs (NSAIDs) by carboxyl-functionalized mesoporous silica nanoparticles (MSN-COOH) with high specific surface area (SBET). In this study, MSN-COOH was prepared by collaborative self-assembly using cetyltrimethylammonium bromide (CTAB) as template and hydrolysis (3-triethoxyl-propyl) succinic anhydride (TESPSA) as co-structure auxiliary directing agent (CSDA). The drug delivery systems were constructed with NSAIDs including Nimesulide (NMS) and Indomethacin (IMC) as model drugs. Moreover, the characterization techniques, hemolysis and bio-adsorption testes, in vitro drug release and in vivo biological studies of MSN-COOH were also carried out. The characterization results showed that MSN-COOH is spheres with clearly visible irregular honeycomb nanopores and rough surface (SBET: 1257 m2/g, pore volume (VP): 1.17 cm3/g). After loading NMS/IMC into MSN-COOH with high drug loading efficiency (NMS: 98.7 and IMC: 98.2%), most crystalline NMS and IMC converted to amorphous phase confirmed using differential scanning calorimeter (DSC) and X-ray power diffraction (XRD) analysis. Meanwhile, MSN-COOH significantly increased the dissolution of NMS and IMC compared with non-functionalized mesoporous silica nanoparticles (MSN), which was also confirmed by wettability experiments. The results of in vivo biological effects showed that MSN-COOH had higher bioavailability of NMS and IMC than MSN, and exerted strong anti-inflammatory effects by delivering more NMS and IMC in vivo. STATEMENT OF SIGNIFICANCE: This study successfully prepared MSNs-COOH (mesoporous silica nanoparticles modified with negatively charged carboxyl groups on the surface and in the pores) with high specific surface area and pore volume by using the negatively charged carboxyl group (hyd-TESPSA) and the positively charged CTAB self-assembled through electrostatic attraction under alkaline conditions. The drug delivery systems were constructed with Nimesulide (NMS) and Indomethacin (IMC) as model drugs. The results showed MSNs-COOH had high drug loading capacity and also exhibited good in vitro drug release properties. Interestingly, NMS loaded MSNs-COOH also had a potential pH responsive release effect. In vivo biological studies revealed that NMS/IMC loaded MSNs-COOH could evidently improve the bioavailability and played the strong anti-inflammatory effects.
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Aldosari BN, Almurshedi AS, Alfagih IM, AlQuadeib BT, Altamimi MA, Imam SS, Hussain A, Alqahtani F, Alzait E, Alshehri S. Formulation of Gelucire®-Based Solid Dispersions of Atorvastatin Calcium: In Vitro Dissolution and In Vivo Bioavailability Study. AAPS PharmSciTech 2021; 22:161. [PMID: 34031791 DOI: 10.1208/s12249-021-02019-5] [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: 02/03/2021] [Accepted: 04/18/2021] [Indexed: 01/22/2023] Open
Abstract
Atorvastatin (ATV) is a poorly water-soluble drug that exhibits poor oral bioavailability. Therefore, present research was designed to develop ATV solid dispersions (SDs) to enhance the solubility, drug release, and oral bioavailability. Various SDs of ATV were formulated by conventional and microwave-induced melting methods using Gelucire®48/16 as a carrier. The formulated SDs were characterized for different physicochemical characterizations, drug release, and oral bioavailability studies. The results obtained from the different physicochemical characterization indicate the molecular dispersion of ATV within various SDs. The drug polymer interaction results showed no interaction between ATV and used carrier. There was marked enhancement in the solubility (1.95-9.32 folds) was observed for ATV in prepared SDs as compare to pure ATV. The drug content was found to be in the range of 96.19% ± 2.14% to 98.34% ± 1.32%. The drug release results revealed significant enhancement in ATV release from prepared SDs compared to the pure drug and the marketed tablets. The formulation F8 showed high dissolution performance (% DE30 value of 80.65 ± 3.05) among the other formulations. Optimized Gelucire®48/16-based SDs formulation suggested improved oral absorption of atorvastatin as evidenced with improved pharmacokinetic parameters (Cmax 2864.33 ± 573.86 ng/ml; AUC0-t 5594.95 ± 623.3 ng/h ml) as compared to ATV suspension (Cmax 317.82 ± 63.56 ng/ml; AUC0-t 573.94 ± 398.9 ng/h ml) and marketed tablets (Cmax 852.72 ± 42.63 ng/ml; 4837.4 ± 174.7 ng/h ml). Conclusively, solid dispersion-based oral formulation of atorvastatin could be a promising approach for enhanced drug solubilization, dissolution, and subsequently improved absorption.
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Forster SP, Dippold E, Chiang T. Twin-Screw Melt Granulation for Oral Solid Pharmaceutical Products. Pharmaceutics 2021; 13:pharmaceutics13050665. [PMID: 34066332 PMCID: PMC8148162 DOI: 10.3390/pharmaceutics13050665] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 04/23/2021] [Accepted: 04/27/2021] [Indexed: 12/16/2022] Open
Abstract
This article highlights the advantages of pharmaceutical continuous melt granulation by twin-screw extrusion. The different melt granulation process options and excipients are described and compared, and a case is made for expanded use of twin-screw melt granulation since it is a flexible and continuous process. Methods for binder selection are profiled with a focus on rheology and physical stability impacts. For twin-screw melt granulation, the mechanism of granulation and process impact on granule properties are described. Pharmaceutical applications of melt granulation ranging from immediate release of soluble and insoluble APIs, taste-masking, and sustained release formulation are reviewed, demonstrating the range of possibilities afforded by twin-screw melt granulation.
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Tran PHL, Lee BJ, Tran TTD. Recent studies on the processes and formulation impacts in the development of solid dispersions by hot-melt extrusion. Eur J Pharm Biopharm 2021; 164:13-19. [PMID: 33887388 DOI: 10.1016/j.ejpb.2021.04.009] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 03/20/2021] [Accepted: 04/11/2021] [Indexed: 10/21/2022]
Abstract
Industrial-scale pharmaceutical applications still face many challenges in overcoming the low absorption and bioavailability of poorly water-soluble drugs. Hot-melt extrusion has emerged as a promising approach with continuous processing on an industrial scale for the preparation of drug delivery systems. Many reviews have mentioned the potential applications, processes, principles and advantages and disadvantages of hot-melt extrusion in the pharmaceutical industry. However, a focus on the recent progress of hot-melt extrusion, which investigates the impacts of processes and formulations of solid dispersions of poorly water-soluble drugs, is missing. In this review, various factors, including polymers, drug properties, additives and surfactants, in solid dispersion SD formulations by hot-melt extrusion will be discussed. Moreover, the effects of the hot-melt extrusion process on the physicochemical properties of solid dispersions will be mentioned. The utilization of molecular interactions in hot-melt extrusion to improve drug stability will also be described. Overall, this summary of recent studies on solid dispersion by hot-melt extrusion will provide perspectives and effectiveness for the development of formulations containing poorly water-soluble drugs.
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Affiliation(s)
- Phuong H L Tran
- Deakin University, School of Medicine, IMPACT, Institute for Innovation in Physical and Mental Health and Clinical Translation, Geelong, Australia
| | - Beom-Jin Lee
- College of Pharmacy, Ajou University, Suwon, Republic of Korea
| | - Thao T D Tran
- Institute of Research and Development, Duy Tan University, Danang 550000, Vietnam; The Faculty of Pharmacy, Duy Tan University, Danang 550000, Vietnam.
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16
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Dolci LS, Albertini B, Di Filippo MF, Bonvicini F, Passerini N, Panzavolta S. Development and in vitro evaluation of mucoadhesive gelatin films for the vaginal delivery of econazole. Int J Pharm 2020; 591:119979. [PMID: 33068694 DOI: 10.1016/j.ijpharm.2020.119979] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Revised: 10/09/2020] [Accepted: 10/09/2020] [Indexed: 02/02/2023]
Abstract
Several strategies have been explored to obtain effective econazole nitrate (ECN) concentrations at the site of application for a prolonged time. In this paper, different gelatin-based film formulations for vaginal application were investigated, containing ECN (10% w/w with respect to gelatin) as pure drug or as drug-solid dispersions (SD). For the production of SD, different polymers were evaluated: polyvinylpyrrolidone (PVP), Soluplus® (polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer) and Gelucire® 50/13 (mixture of mono-, di- and triglycerides of fatty acids, esters of PEG 1500 and free PEG). Gelucire®-SD showed the best solubility enhancement, increasing 9.2 times the ECN solubility in pH 4.5 solution respect to pure drug; DSC and XRD analysis confirmed the crystalline form of the drug. XRD results evidenced that all gelatin-based films, containing either the drug or the SD, underwent the topotactic transformation of ECN into crystalline econazole (EC), owing to a strong interaction between the drug and the gelatin. Films containing Gelucire®-based SD displayed lower brittleness and rigidity with respect to the other samples; moreover they demonstrated good structural integrity after 24 h of incubation in the acidic solution (swelling degree of about 350%). Then, Gelucire®-SD based films were compared with the corresponding formulations cross-linked by genipin (2% w/w). The addition of genipin did not interfere with the drug-gelatin interaction. Gelucire®-SD based films showed similar release profiles to neat gelatin films, enhancing the drug release in the first 5 h and controlling the EC release over time, avoiding the use of a crosslinking additive. Finally, gelatin films containing Gelucire® solid dispersion displayed good adhesiveness and anti-Candida activity. Overall, results support the potential use of this film formulation as noncytotoxic EC delivery system for the treatment of vaginal candidiasis.
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Affiliation(s)
- Luisa Stella Dolci
- Department of Pharmacy and BioTechnology, Pharm. Tech. Lab, University of Bologna, Via S. Donato 19/2, 40127, Italy
| | - Beatrice Albertini
- Department of Pharmacy and BioTechnology, Pharm. Tech. Lab, University of Bologna, Via S. Donato 19/2, 40127, Italy.
| | | | - Francesca Bonvicini
- Department of Pharmacy and Biotechnology, Microbiology and Clinical Microbiology Lab, University of Bologna, Via Massarenti 9, 40138, Italy
| | - Nadia Passerini
- Department of Pharmacy and BioTechnology, Pharm. Tech. Lab, University of Bologna, Via S. Donato 19/2, 40127, Italy
| | - Silvia Panzavolta
- Department of Chemistry "G. Ciamician", University of Bologna, Via Selmi 2, 40126, Italy
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Characterization of ternary amorphous solid dispersion containing hypromellose phthalate and erythritol prepared by hot melt extrusion using melting point depression. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101797] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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18
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Bertoni S, Albertini B, Passerini N. Different BCS Class II Drug-Gelucire Solid Dispersions Prepared by Spray Congealing: Evaluation of Solid State Properties and In Vitro Performances. Pharmaceutics 2020; 12:pharmaceutics12060548. [PMID: 32545643 PMCID: PMC7356387 DOI: 10.3390/pharmaceutics12060548] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2020] [Revised: 06/05/2020] [Accepted: 06/10/2020] [Indexed: 12/17/2022] Open
Abstract
Delivery of poorly water soluble active pharmaceutical ingredients (APIs) by semi-crystalline solid dispersions prepared by spray congealing in form of microparticles (MPs) is an emerging method to increase their oral bioavailability. In this study, solid dispersions based on hydrophilic Gelucires® (Gelucire® 50/13 and Gelucire® 48/16 in different ratio) of three BCS class II model compounds (carbamazepine, CBZ, tolbutamide, TBM, and cinnarizine, CIN) having different physicochemical properties (logP, pKa, Tm) were produced by spray congealing process. The obtained MPs were investigated in terms of morphology, particles size, drug content, solid state properties, drug-carrier interactions, solubility, and dissolution performances. The solid-state characterization showed that the properties of the incorporated drug had a profound influence on the structure of the obtained solid dispersion: CBZ recrystallized in a different polymorphic form, TBM crystallinity was significantly reduced as a result of specific interactions with the carrier, while smaller crystals were observed in case of CIN. The in vitro tests suggested that the drug solubility was mainly influenced by carrier composition, while the drug dissolution behavior was affected by the API solid state in the MPs after the spray congealing process. Among the tested APIs, TBM-Gelucire dispersions showed the highest enhancement in drug dissolution as a result of the reduced drug crystallinity.
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Tian B, Ding Z, Zong S, Yang J, Wang N, Wang T, Huang X, Hao H. Manipulation of Pharmaceutical Polymorphic Transformation Process Using Excipients. Curr Pharm Des 2020; 26:2553-2563. [PMID: 32053064 DOI: 10.2174/1381612826666200213122302] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 01/10/2020] [Indexed: 12/31/2022]
Abstract
BACKGROUND In the pharmaceutical field, it is vital to ensure a consistent product containing a single solid-state form of the active pharmaceutical ingredient (API) in the drug product. However, some APIs are suffering from the risk of transformation of their target forms during processing, formulation and storage. METHODS The purpose of this review is to summarize the relevant category of excipients and demonstrate the availability and importance of using excipients as a key strategy to manipulate pharmaceutical polymorphic transformation. RESULTS The excipient effects on solvent-mediated phase transformations, solid-state transitions and amorphous crystallization are significant. Common pharmaceutical excipients including amino acids and derivatives, surfactants, and various polymers and their different manipulation effects were summarized and discussed. CONCLUSION Appropriate use of excipients plays a role in manipulating polymorphic transformation process of corresponding APIs, with a promising application of guaranteeing the stability and effectiveness of drug dosage forms.
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Affiliation(s)
- Beiqian Tian
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Zhiyong Ding
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Shuyi Zong
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Jinyue Yang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Na Wang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Ting Wang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
| | - Xin Huang
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Hongxun Hao
- National Engineering Research Center of Industrial Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China.,Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
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Evaluation of the Solid Dispersion System Engineered from Mesoporous Silica and Polymers for the Poorly Water Soluble Drug Indomethacin: In Vitro and In Vivo. Pharmaceutics 2020; 12:pharmaceutics12020144. [PMID: 32050600 PMCID: PMC7076385 DOI: 10.3390/pharmaceutics12020144] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 01/23/2020] [Accepted: 02/03/2020] [Indexed: 12/16/2022] Open
Abstract
This work explored absorption efficacy via an in vivo imaging system and parallel artificial membrane penetration in indomethacin (IMC) solid dispersion (SD) systems. Two different polymer excipients—hydroxypropyl methylcellulose (HPMC) and Kollicoat IR as precipitation inhibitors (PIs)—combined with mesoporous silica nanoparticles (MSNs) as carriers were investigated. The IMC–SDs were prepared using the solvent evaporation method and characterized by solubility analysis, infrared (IR) spectroscopy, powder X-ray diffraction (PXRD), field emission scanning electron microscopy (FESEM), and differential scanning calorimetry (DSC). It was confirmed that IMC successfully changed into an amorphous state after loading into the designed carriers. The in vitro release and stability experiments were conducted to examine the in vitro dissolution rates of IMC–SDs combined with HPMC and Kollicoat IR as PIs which both improved approximately three-fold to that of the pure drug. Finally, in vivo studies and in vitro parallel artificial membrane penetration (PAMPA) experiments ensured the greater ability of enhancing the dissolution rates of pure IMC in the gastrointestinal tract by oral delivery. In brief, this study highlights the prominent role of HPMC and Kollicoat IR as PIs in MSN SD systems in improving the bioavailability and gastrointestinal oral absorption efficiency of indomethacin.
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Aucamp M, Milne M. The physical stability of drugs linked to quality-by-design (QbD) and in-process technology (PAT) perspectives. Eur J Pharm Sci 2019; 139:105057. [PMID: 31470099 DOI: 10.1016/j.ejps.2019.105057] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Revised: 06/11/2019] [Accepted: 08/25/2019] [Indexed: 11/26/2022]
Abstract
The physical stability of solid-state forms in which drugs may exist is in some sense an overlooked aspect. In an era where strategies such as amorphous solid dispersions or co-amorphous preparations might provide answers to stumbling blocks such as poor drug solubility and bioavailability, the physical stability of such solid-state preparations should be a priority. Furthermore, the pharmaceutical industry is moving towards adapting a real time release of pharmaceutical products strategy, through the utilization of process analytical technology. It is thus becoming imperative to investigate the various types of phase transformations a specific solid-state form of a drug may undergo. Also, to critically assess the applicability of process analytical tools that may be sensitive enough to monitor not only chemical but also physical drug stability. These combined efforts allow quality to be built into the product, rather than dealing with costly post batch release recalls. Given that drug stability is an essential quality attribute for a drug product and the quality-by-design approach (QbD) is a best solution to build quality in all pharmaceutical products we focussed on the critical material attributes (CMAs), specifically relating to the physical stability of any given drug. This review highlights physical drug stability in relation to CMAs and how this ultimately link to the finished pharmaceutical product. Investigated challenges associated current PAT strategies is also discussed.
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Affiliation(s)
- Marique Aucamp
- School of Pharmacy, University of the Western Cape, Bellville, Cape Town 7535, South Africa.
| | - Marnus Milne
- School of Pharmacy, Sefako Makgatho Health Sciences University, Ga-Rankuwa, Pretoria 0204, South Africa
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Bertoni S, Albertini B, Passerini N. Spray Congealing: An Emerging Technology to Prepare Solid Dispersions with Enhanced Oral Bioavailability of Poorly Water Soluble Drugs. Molecules 2019; 24:E3471. [PMID: 31557815 PMCID: PMC6804277 DOI: 10.3390/molecules24193471] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 09/23/2019] [Accepted: 09/24/2019] [Indexed: 12/17/2022] Open
Abstract
The low and variable oral bioavailability of poorly water soluble drugs remains a major concern for the pharmaceutical industry. Spray congealing is an emerging technology for the production of solid dispersion to enhance the bioavailability of poorly soluble drugs by using low-melting hydrophilic excipients. The main advantages are the absence of solvents and the possibility to obtain spherical free-flowing microparticles (MPs) by a relatively inexpensive, simple, and one-step process. This review aims to fully describe the composition, structure, physico-chemical properties, and characterization techniques of spray congealed-formulations. Moreover, the influence of these properties on the MPs performance in terms of solubility and dissolution enhancement are examined. Following, an overview of the different spray congealed systems developed to increase the oral drug bioavailability is provided, with a focus on the mechanisms underpinning the bioavailability enhancement. Finally, this work gives specific insights on the main factors to be considered for the rational formulation, manufacturing, and characterization of spray congealed solid dispersions.
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Affiliation(s)
- Serena Bertoni
- Department of Pharmacy and BioTechnology, University of Bologna, Via S. Donato 19/2, 40127 Bologna, Italy.
| | - Beatrice Albertini
- 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.
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Ouyang H, Ang CY, Heng PWS, Chan LW. Effects of Drug Particle Size and Lipid Additives on Drug Release from Paraffin Wax Formulations Prepared by Spray Congealing Technique. AAPS PharmSciTech 2019; 20:303. [PMID: 31501994 DOI: 10.1208/s12249-019-1519-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2019] [Accepted: 08/23/2019] [Indexed: 11/30/2022] Open
Abstract
Paraffin wax is a hydrophobic meltable material that can be suitably used in spray congealing to develop drug-loaded microparticles for sustained release, taste-masking or stability enhancement of drugs. However, these functional properties may be impaired if the drug particles are not completely embedded. Moreover, highly viscous melts are unsuitable for spray dispersion. In this study, the effects of drug particle size and lipid additives, namely stearic acid (SA), cetyl alcohol (CA) and cetyl esters (CE), on melt viscosity and extent of drug particles embedment were investigated. Spray congealing was conducted on the formulations, and the resultant microparticles were analysed for their size, drug content, extent of drug particles embedment and drug release. The melt viscosity increased with smaller solid inclusions while lipid additives decreased the viscosity to varying extents. The spray-congealed microparticle size was largely dependent on the viscosity. The addition of lipid additives to paraffin wax enabled more complete embedment of the drug particles. CA produced microparticles with the lowest drug release, followed by SA and CE. The addition of CA and CE enhanced the drug release and showed potential for taste-masking. Judicious choice of drug particle size and matrix materials is important for successful spray congealing to produce microparticles with the desired characteristics.
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