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Qian K, Stella L, Liu F, Jones DS, Andrews GP, Tian Y. Kinetic and Thermodynamic Interplay of Polymer-Mediated Liquid-Liquid Phase Separation for Poorly Water-Soluble Drugs. Mol Pharm 2024; 21:2878-2893. [PMID: 38767457 DOI: 10.1021/acs.molpharmaceut.4c00033] [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] [Indexed: 05/22/2024]
Abstract
Understanding the interplay between kinetics and thermodynamics of polymer-mediated liquid-liquid phase separation is crucial for designing and implementing an amorphous solid dispersion formulation strategy for poorly water-soluble drugs. This work investigates the phase behaviors of a poorly water-soluble model drug, celecoxib (CXB), in a supersaturated aqueous solution with and without polymeric additives (PVP, PVPVA, HPMCAS, and HPMCP). Drug-polymer-water ternary phase diagrams were also constructed to estimate the thermodynamic behaviors of the mixtures at room temperature. The liquid-liquid phase separation onset point for CXB was detected using an inline UV/vis spectrometer equipped with a fiber optic probe. Varying CXB concentrations were achieved using an accurate syringe pump throughout this study. The appearance of the transient nanodroplets was verified by cryo-EM and total internal reflection fluoresence microscopic techniques. The impacts of various factors, such as polymer composition, drug stock solution pumping rates, and the types of drug-polymer interactions, are tested against the onset points of the CXB liquid-liquid phase separation (LLPS). It was found that the types of drug-polymer interactions, i.e., hydrogen bonding and hydrophobic interactions, are vital to the position and shapes of LLPS in the supersaturation drug solution. A relation between the behaviors of LLPS and its location in the CXB-polymer-water ternary phase diagram was drawn from the findings.
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Affiliation(s)
- Kaijie Qian
- School of Pharmacy, McClay Research Centre, Queen's University Belfast, 97 Lisburn Road, Northern Ireland BT9 7BL, U.K
| | - Lorenzo Stella
- School of Mathematics and Physics, Queen's University Belfast, University Road, Belfast BT7 1NN, U.K
- School of Chemistry and Chemical Engineering, Queen's University Belfast, Stranmillis Road, Belfast BT9 5AG, U.K
| | - Fanjun Liu
- School of Pharmacy, McClay Research Centre, Queen's University Belfast, 97 Lisburn Road, Northern Ireland BT9 7BL, U.K
| | - David S Jones
- School of Pharmacy, McClay Research Centre, Queen's University Belfast, 97 Lisburn Road, Northern Ireland BT9 7BL, U.K
| | - Gavin P Andrews
- School of Pharmacy, McClay Research Centre, Queen's University Belfast, 97 Lisburn Road, Northern Ireland BT9 7BL, U.K
| | - Yiwei Tian
- School of Pharmacy, McClay Research Centre, Queen's University Belfast, 97 Lisburn Road, Northern Ireland BT9 7BL, U.K
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2
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Becelaere J, Frateur O, Schoolaert E, Vanhoorne V, D'hooge DR, Vervaet C, Hoogenboom R, De Clerck K. Solvent electrospinning amorphous solid dispersions with high itraconazole, celecoxib, mebendazole and fenofibrate drug loading and release potential. J Control Release 2023; 362:268-277. [PMID: 37648083 DOI: 10.1016/j.jconrel.2023.08.054] [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: 02/24/2023] [Revised: 08/14/2023] [Accepted: 08/27/2023] [Indexed: 09/01/2023]
Abstract
In this work, the feasibility of ultra-high drug loaded amorphous solid dispersions (ASDs) for the poorly soluble itraconazole, mebendazole and celecoxib via solvent electrospinning in combination with poly(2-ethyl-2-oxazoline) and fenofibrate in combination with polyvinylpyrrolidone is demonstrated. By lowering the polymer concentration in the electrospinning solution below its individual spinnable limit, ASDs with a drug content of up to 80 wt% are obtained. This is attributed to drug-polymer interactions not being limited by default to hydrogen bonds, as also Van der Waals interactions can result in high drug loadings. The theoretically predicted miscibility by the Flory-Huggins theory is corroborated by the experimental findings based on (modulated) differential scanning calorimetry and x-ray diffraction. Globally, the maximally obtained amorphous drug loadings are higher compared to the loadings found in literature. Additionally, non-sink dissolution tests demonstrate an increase in solubility of up to 50 times compared to their crystalline counterparts. Moreover, due to the lack of precipitation biocompatible PEtOx succeeds in stabilizing the dissolved drug and inhibiting its instant precipitation. The current work thus demonstrates the broader applicability of the electrospinning technique for the production of physically stable ASDs with ultra-high drug loadings, a result which has been validated for several Biopharmaceutics Classification System class II drugs.
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Affiliation(s)
- Jana Becelaere
- Ghent University, Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Technologiepark 70A, B-9052 Ghent, Belgium
| | - Olmo Frateur
- Ghent University, Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Technologiepark 70A, B-9052 Ghent, Belgium
| | - Ella Schoolaert
- Ghent University, Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Technologiepark 70A, B-9052 Ghent, Belgium
| | - Valérie Vanhoorne
- Ghent University, Laboratory of Pharmaceutical Technology, Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Ottergemsesteenweg 460, B-9000 Ghent, Belgium
| | - Dagmar R D'hooge
- Ghent University, Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Technologiepark 70A, B-9052 Ghent, Belgium
| | - Chris Vervaet
- Ghent University, Laboratory of Pharmaceutical Technology, Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Ottergemsesteenweg 460, B-9000 Ghent, Belgium.
| | - Richard Hoogenboom
- Ghent University, Supramolecular Chemistry Group, Centre of Macromolecular Chemistry (CMaC), Department of Organic and Macromolecular Chemistry, Faculty of Sciences, Krijgslaan 281 - S4, B-9000 Ghent, Belgium.
| | - Karen De Clerck
- Ghent University, Department of Materials, Textiles and Chemical Engineering, Faculty of Engineering and Architecture, Technologiepark 70A, B-9052 Ghent, Belgium.
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3
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Saha SK, Joshi A, Singh R, Dubey K. Review of industrially recognized polymers and manufacturing processes for amorphous solid dispersion based formulations. Pharm Dev Technol 2023; 28:678-696. [PMID: 37427544 DOI: 10.1080/10837450.2023.2233595] [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: 04/19/2023] [Revised: 06/27/2023] [Accepted: 07/02/2023] [Indexed: 07/11/2023]
Abstract
Evolving therapeutic landscape through combinatorial chemistry and high throughput screening have resulted in an increased number of poorly soluble drugs. Drug delivery strategies quickly adapted to convert these drugs into successful therapies. Amorphous solid dispersion (ASD) technology is widely employed as a drug delivery strategy by pharmaceutical industries to overcome the challenges associated with these poorly soluble drugs. The development of ASD formulation requires an understanding of polymers and manufacturing techniques. A review of US FDA-approved ASD-based products revealed that only a limited number of polymers and manufacturing technologies are employed by pharmaceutical industries. This review provides a comprehensive guide for the selection and overview of polymers and manufacturing technologies adopted by pharmaceutical industries for ASD formulation. The various employed polymers with their underlying mechanisms for solution-state and solid-state stability are discussed. ASD manufacturing techniques, primarily implemented by pharmaceutical industries for commercialization, are presented in Quality by Design (QbD) format. An overview of novel excipients and progress in manufacturing technologies are also discussed. This review provides insights to the researchers on the industrially accepted polymers and manufacturing technology for ASD formulation that has translated these challenging drugs into successful therapies.
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Affiliation(s)
- Sumit Kumar Saha
- Department of Pharmacology, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, India
- Formulation Research and Development - Orals, Sun Pharmaceuticals Industries Limited, Gurugram, India
| | | | - Romi Singh
- Formulation Research and Development - Orals, Sun Pharmaceuticals Industries Limited, Gurugram, India
| | - Kiran Dubey
- Department of Pharmacology, School of Pharmaceutical Education & Research, Jamia Hamdard, New Delhi, India
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4
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Shen P, Zhang C, Hu E, Gao Y, Qian S, Zhang J, Wei Y, Heng W. A prediction system: Regulating effect of small-molecule additives on properties of amorphous solid dispersions prepared by hot-melt extrusion technology. Eur J Pharm Biopharm 2023; 189:56-67. [PMID: 37301300 DOI: 10.1016/j.ejpb.2023.06.001] [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: 02/24/2023] [Revised: 04/29/2023] [Accepted: 06/06/2023] [Indexed: 06/12/2023]
Abstract
Amorphous solid dispersions (ASDs) with solubility advantage are suffering from the recrystallization risk and subsequent reduced dissolution triggered by high hygroscopicity of hydrophilic polymers and the supersaturation of ASD solutions. To address these issues, in this study, small-molecule additives (SMAs) in the Generally Recognized as Safe (GRAS) list were introduced into drug-polymer ASD. For the first time, we systematically revealed the intrinsic correlation between SMAs and properties of ASDs at the molecular level and constructed a prediction system for the regulation of properties of ASDs. The types and dosages of SMAs were screened by Hansen solubility and Flory-Huggins interaction parameters, as well as differential scanning calorimetry. X-ray photoelectron spectroscopy and adsorption energy (Eabs) calculation showed that the surface group distribution of ASDs and Eabs between ASD system and solvent were vital factors affecting the hygroscopicity and then stability. The radial distribution function revealed that interactions between components were proposed to be the critical factor for the dissolution performance. Based on this, a prediction system for regulating the properties of ASDs was successfully constructed mainly via molecular dynamics simulations and simple solid-state characterizations, and then validated by cases, which efficiently reduces the time and economic cost of pre-screening ASDs.
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Affiliation(s)
- Peiya Shen
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Chunfeng Zhang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Enshi Hu
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Weili Heng
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China.
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5
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Zhang J, Guo M, Luo M, Cai T. Advances in the development of amorphous solid dispersions: The role of polymeric carriers. Asian J Pharm Sci 2023; 18:100834. [PMID: 37635801 PMCID: PMC10450425 DOI: 10.1016/j.ajps.2023.100834] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Revised: 06/26/2023] [Accepted: 07/23/2023] [Indexed: 08/27/2023] Open
Abstract
Amorphous solid dispersion (ASD) is one of the most effective approaches for delivering poorly soluble drugs. In ASDs, polymeric materials serve as the carriers in which the drugs are dispersed at the molecular level. To prepare the solid dispersions, there are many polymers with various physicochemical and thermochemical characteristics available for use in ASD formulations. Polymer selection is of great importance because it influences the stability, solubility and dissolution rates, manufacturing process, and bioavailability of the ASD. This review article provides a comprehensive overview of ASDs from the perspectives of physicochemical characteristics of polymers, formulation designs and preparation methods. Furthermore, considerations of safety and regulatory requirements along with the studies recommended for characterizing and evaluating polymeric carriers are briefly discussed.
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Affiliation(s)
- Jie Zhang
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- College of Biological and Chemical Engineering, Changsha University, Changsha 410022, China
| | - Minshan Guo
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Minqian Luo
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Ting Cai
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing 211198, China
- Department of Pharmaceutical Engineering, School of Engineering, China Pharmaceutical University, Nanjing 211198, China
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6
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Macedo J, Vanhoorne V, Vervaet C, Pinto JF. Influence of formulation variables on the processability and properties of tablets manufactured by fused deposition modelling. Int J Pharm 2023; 637:122854. [PMID: 36948473 DOI: 10.1016/j.ijpharm.2023.122854] [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: 12/01/2022] [Revised: 03/07/2023] [Accepted: 03/12/2023] [Indexed: 03/24/2023]
Abstract
The present work studied the influence of different formulation variables (defined also as factors), namely, different polymers (HPC EF, PVA and HPMC-AS LG), drugs with different water solubilities (paracetamol, hydrochlorothiazide and celecoxib) and drug loads (10 or 30 %) on their processability by HME and FDM. Both filaments and tablets were characterized for physic and chemical properties (DSC, XRPD, FTIR) and performance properties (drug content, in vitro drug release). Experiments were designed to highlight relationships between the 3 factors selected and the mechanical properties of filaments, tablet mass and dissolution profiles of the model drugs from printed tablets. While the combination of hydrochlorothiazide and HPMC-AS LG could not be extruded, the combination of paracetamol with HPC EF turned the filaments too ductile and not stiff enough hampering the process of printing. All other polymer and drug combinations could be successfully extruded and printed. Models reflected the influence of the solubility of the drug considered but not the drug load in formulations. The ranking of the drug release rates was in good agreement with their solubilities. Furthermore, PVA presenting the fastest swelling rate, promoted the fastest drugs' releases in comparison with the other polymers studied. Overall, the study enabled the identification of the key factors affecting the properties of printed tablets, with the proposal of a model that has valued the relative contribution of each factor to the overall performance of tablets.
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Affiliation(s)
- Joana Macedo
- iMed.ULisboa, Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal
| | - Valérie Vanhoorne
- Laboratory of Pharmaceutical Technology, Ghent University, Ghent, Belgium
| | - Chris Vervaet
- Laboratory of Pharmaceutical Technology, Ghent University, Ghent, Belgium
| | - João F Pinto
- iMed.ULisboa, Faculdade de Farmácia, Universidade de Lisboa, Lisboa, Portugal.
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7
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Vasilev NA, Voronin AP, Surov AO, Perlovich GL. Influence of Co-amorphization on the Physical Stability and Dissolution Performance of an Anthelmintic Drug Flubendazole. Mol Pharm 2023; 20:1657-1669. [PMID: 36732935 DOI: 10.1021/acs.molpharmaceut.2c00873] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
In this work, the co-amorphization approach was applied to flubendazole (FluBZ), resulting in the formation of two novel solid forms of FluBZ with l-phenylalanine (Phe) and l-tryptophan (Trp). A variety of physicochemical techniques have been used to describe new systems, including powder X-ray diffraction, thermal methods, infrared spectroscopy, and scanning electron microscopy. Co-amorphization has been shown to suppress crystallization tendency and considerably increase the shelf-life storage of amorphous flubendazole solid across a wide range of relative humidities. The dissolution behavior of the amorphous forms in biorelevant media at pH = 1.6, pH = 6.5, and 37 °C has been studied in terms of Cmax (maximum FluBZ concentration), Tmax (time to attain peak drug concentration), and AUC (concentration area under the curve during dissolution). At pH = 6.5, a continuous supersaturation and the highest AUC value of all examined systems were observed for the FluBZ-Phe (1:1) system. The phase solubility diagrams revealed that the reason for the better dissolution performance of FluBZ-Phe (1:1) at pH = 6.5 is a complexation between the components in a solution. This work highlights the applicability of co-amorphous systems in improving the physical stability and dissolution performance of drug compounds with poor biopharmaceutical characteristics.
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Affiliation(s)
- Nikita A Vasilev
- G.A. Krestov Institute of Solution Chemistry RAS, 153045Ivanovo, Russia
| | | | - Artem O Surov
- G.A. Krestov Institute of Solution Chemistry RAS, 153045Ivanovo, Russia
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8
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Ding F, Cao W, Wang R, Wang N, Li A, Wei Y, Qian S, Zhang J, Gao Y, Pang Z. Mechanistic Study on Transformation of Coamorphous Baicalein-Nicotinamide to Its Cocrystal Form. J Pharm Sci 2023; 112:513-524. [PMID: 36150469 DOI: 10.1016/j.xphs.2022.08.031] [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: 03/16/2022] [Revised: 08/24/2022] [Accepted: 08/24/2022] [Indexed: 01/18/2023]
Abstract
Recently, coamorphization and cocrystal technologies are of particular interest in the pharmaceutical industry due to their ability to improve the solubility/dissolution and bioavailability of poorly water-soluble drugs, while the coamorphous system often tends to convert into the stable crystalline form usually crystalline physical mixture of each component during formulation preparation or storage. In this paper, BCS II drug baicalein (BAI) along with nicotinamide (NIC) were prepared into a single homogeneous coamorphous system with a single transition temperature at 42.5 °C. Interestingly, instead of the physical mixture of crystalline BAI and NIC, coamorphous BAI-NIC would transform to its cocrystal form under stress of temperature and humidity. The transformation rate under isothermal condition was temperature-dependent, since the crystallinity of the cocrystal enhanced as the temperature increased. Further mechanic studies showed the activation energy for the transformation under non-isothermal condition was calculated to be 184.52 kJ/mol. Additionally, water vapor sorption tests with further solid characterizations indicated the transformation was faster under higher humidity condition due to the faster nucleation process of cocrystal BAI-NIC. This research not only discovered the mechanism of transformation from coamorphous BAI-NIC to cocrystal form, but also provided an unusual method for cocrystal preparation from its coamorphous form.
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Affiliation(s)
- Fei Ding
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China; Yangtze River Pharmaceutical Group Nanjing Hailing Pharmaceutical Co., Ltd., Nanjing, 210049, PR China
| | - Wei Cao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Runze Wang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Ningning Wang
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Anran Li
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Yuanfeng Wei
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Shuai Qian
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Jianjun Zhang
- School of Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China
| | - Yuan Gao
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China.
| | - Zunting Pang
- School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing, 211198, PR China.
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9
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Recent Advances in Amorphous Solid Dispersions: Preformulation, Formulation Strategies, Technological Advancements and Characterization. Pharmaceutics 2022; 14:pharmaceutics14102203. [PMID: 36297638 PMCID: PMC9609913 DOI: 10.3390/pharmaceutics14102203] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 09/27/2022] [Accepted: 10/13/2022] [Indexed: 11/05/2022] Open
Abstract
Amorphous solid dispersions (ASDs) are among the most popular and widely studied solubility enhancement techniques. Since their inception in the early 1960s, the formulation development of ASDs has undergone tremendous progress. For instance, the method of preparing ASDs evolved from solvent-based approaches to solvent-free methods such as hot melt extrusion and Kinetisol®. The formulation approaches have advanced from employing a single polymeric carrier to multiple carriers with plasticizers to improve the stability and performance of ASDs. Major excipient manufacturers recognized the potential of ASDs and began introducing specialty excipients ideal for formulating ASDs. In addition to traditional techniques such as differential scanning calorimeter (DSC) and X-ray crystallography, recent innovations such as nano-tomography, transmission electron microscopy (TEM), atomic force microscopy (AFM), and X-ray microscopy support a better understanding of the microstructure of ASDs. The purpose of this review is to highlight the recent advancements in the field of ASDs with respect to formulation approaches, methods of preparation, and advanced characterization techniques.
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Amorphous and Co-Amorphous Olanzapine Stability in Formulations Intended for Wet Granulation and Pelletization. Int J Mol Sci 2022; 23:ijms231810234. [PMID: 36142179 PMCID: PMC9499418 DOI: 10.3390/ijms231810234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 08/17/2022] [Accepted: 08/31/2022] [Indexed: 11/17/2022] Open
Abstract
The preparation of amorphous and co-amorphous systems (CAMs) effectively addresses the solubility and bioavailability issues of poorly water-soluble chemical entities. However, stress conditions imposed during common pharmaceutical processing (e.g., tableting) may cause the recrystallization of the systems, warranting close stability monitoring throughout production. This work aimed at assessing the water and heat stability of amorphous olanzapine (OLZ) and OLZ-CAMs when subject to wet granulation and pelletization. Starting materials and products were characterized using calorimetry, diffractometry and spectroscopy, and their performance behavior was evaluated by dissolution testing. The results indicated that amorphous OLZ was reconverted back to a crystalline state after exposure to water and heat; conversely, OLZ-CAMs stabilized with saccharin (SAC), a sulfonic acid, did not show any significant loss of the amorphous content, confirming the higher stability of OLZ in the CAM. Besides resistance under the processing conditions of the dosage forms considered, OLZ-CAMs presented a higher solubility and dissolution rate than the respective crystalline counterpart. Furthermore, in situ co-amorphization of OLZ and SAC during granule production with high fractions of water unveils the possibility of reducing production steps and associated costs.
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Nambiar AG, Singh M, Mali AR, Serrano DR, Kumar R, Healy AM, Agrawal AK, Kumar D. Continuous Manufacturing and Molecular Modeling of Pharmaceutical Amorphous Solid Dispersions. AAPS PharmSciTech 2022; 23:249. [PMID: 36056225 DOI: 10.1208/s12249-022-02408-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Accepted: 08/24/2022] [Indexed: 11/30/2022] Open
Abstract
Amorphous solid dispersions enhance solubility and oral bioavailability of poorly water-soluble drugs. The escalating number of drugs with poor aqueous solubility, poor dissolution, and poor oral bioavailability is an unresolved problem that requires adequate interventions. This review article highlights recent solubility and bioavailability enhancement advances using amorphous solid dispersions (ASDs). The review also highlights the mechanism of enhanced dissolution and the challenges faced by ASD-based products, such as stability and scale-up. The role of process analytical technology (PAT) supporting continuous manufacturing is highlighted. Accurately predicting interactions between the drug and polymeric carrier requires long experimental screening methods, and this is a space where computational tools hold significant potential. Recent advancements in data science, computational tools, and easy access to high-end computation power are set to accelerate ASD-based research. Hence, particular emphasis has been given to molecular modeling techniques that can address some of the unsolved questions related to ASDs. With the advancement in PAT tools and artificial intelligence, there is an increasing interest in the continuous manufacturing of pharmaceuticals. ASDs are a suitable option for continuous manufacturing, as production of a drug product from an ASD by direct compression is a reality, where the addition of multiple excipients is easy to avoid. Significant attention is necessary for ongoing clinical studies based on ASDs, which is paving the way for the approval of many new ASDs and their introduction into the market.
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Affiliation(s)
- Amritha G Nambiar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, 221005, India
| | - Maan Singh
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, 221005, India
| | - Abhishek R Mali
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, 221005, India
| | | | - Rajnish Kumar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, 221005, India
| | - Anne Marie Healy
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Dublin 2, Ireland
| | - Ashish Kumar Agrawal
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, 221005, India
| | - Dinesh Kumar
- Department of Pharmaceutical Engineering and Technology, Indian Institute of Technology (BHU), Varanasi, 221005, India.
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Kapourani A, Chatzitheodoridou M, Valkanioti V, Manioudaki AE, Bikiaris ND, Barmpalexis P. Evaluating the effect of kosmotropic inorganic salts in the in vitro dissolution behavior of tablets containing amorphous indomethacin-polyvinylpyrrolidone solid dispersions. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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13
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Solid Dispersion Formulations by FDM 3D Printing-A Review. Pharmaceutics 2022; 14:pharmaceutics14040690. [PMID: 35456524 PMCID: PMC9032529 DOI: 10.3390/pharmaceutics14040690] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 01/06/2023] Open
Abstract
Additive manufacturing (AM) is revolutionizing the way medicines are designed, manufactured, and utilized. Perhaps, AM appears to be ideal for the fit-for-purpose manufacturing of medicines in contrast to the several disadvantages associated with the conventional fit-for-all mass production that accounts for less than 50% of pharmacotherapeutic treatment/management of diseases especially among children and elderly patients, as well as patients with special needs. In this review, we discuss the current trends in the application of additive manufacturing to prepare personalized dosage forms on-demand focusing the attention on the relevance of coupling solid dispersion with FDM 3D printing. Combining the two technologies could offer many advantages such as to improve the solubility, dissolution, and oral bioavailability of poorly soluble drugs in tandem with the concept of precision medicine and personalized dosing and to address the dilemma of commercial availability of FDM filaments loaded with Class II and/or Class IV drugs. However, thermal treatment especially for heat-sensitive drugs, regulatory, and ethical obligations in terms of quality control and quality assurance remain points of concern. Hence, a concerted effort is needed between the scientific community, the pharmaceutical industries, the regulatory agencies, the clinicians and clinical pharmacists, and the end-users to address these concerns.
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14
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Niederquell A, Stoyanov E, Kuentz M. Hydroxypropyl Cellulose for Drug Precipitation Inhibition: From the Potential of Molecular Interactions to Performance Considering Microrheology. Mol Pharm 2022; 19:690-703. [PMID: 35005970 DOI: 10.1021/acs.molpharmaceut.1c00832] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
There has been recent interest in using hydroxypropyl cellulose (HPC) for supersaturating drug formulations. This study investigated the potential for molecular HPC interactions with the model drug celecoxib by integrating novel approaches in the field of drug supersaturation analysis. Following an initial polymer characterization study, quantum-chemical calculations and molecular dynamics simulations were complemented with results of inverse gas chromatography and broadband diffusing wave spectroscopy. HPC performance was studied regarding drug solubilization and kinetics of desupersaturation using different grades (i.e., HPC-UL, SSL, SL, and L). The results suggested that the potential contribution of dispersive interactions and hydrogen bonding depended strongly on the absence or presence of the aqueous phase. It was proposed that aggregation of HPC polymer chains provided a complex heterogeneity of molecular environments with more or less excluded water for drug interaction. In precipitation experiments at a low aqueous polymer concentration (i.e., 0.01%, w/w), grades L and SL appeared to sustain drug supersaturation better than SSL and UL. However, UL was particularly effective in drug solubilization at pH 6.8. Thus, a better understanding of drug-polymer interactions is important for formulation development, and polymer blends may be used to harness the combined advantages of individual polymer grades.
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Affiliation(s)
- Andreas Niederquell
- School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz CH 4132, Switzerland
| | - Edmont Stoyanov
- Nisso Chemical, Europe, Berliner Allee 42, Düsseldorf 40212, Germany
| | - Martin Kuentz
- School of Life Sciences, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz CH 4132, Switzerland
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15
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Anane-Adjei AB, Jacobs E, Nash SC, Askin S, Soundararajan R, Kyobula M, Booth J, Campbell A. Amorphous Solid Dispersions: Utilization and Challenges in Preclinical Drug Development within AstraZeneca. Int J Pharm 2021; 614:121387. [PMID: 34933082 DOI: 10.1016/j.ijpharm.2021.121387] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 11/23/2021] [Accepted: 12/12/2021] [Indexed: 01/04/2023]
Abstract
The poor aqueous solubility of many active pharmaceutical ingredients (APIs) dominates much of the early drug development portfolio and poses a major challenge in pharmaceutical development. Polymer-based amorphous solid dispersions (ASDs) are becoming increasingly common and offer a promising formulation strategy to tackle the solubility and oral absorption issues of these APIs. This review discusses the design, manufacture, and utilisation of ASD formulations in preclinical drug development, with a key focus on the pre-formulation assessments and workflows employed at AstraZeneca.
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Affiliation(s)
- Akosua B Anane-Adjei
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Esther Jacobs
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Samuel C Nash
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Sean Askin
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Ramesh Soundararajan
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Mary Kyobula
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK
| | - Jonathan Booth
- Pharmaceutical Technology & Development, AstraZeneca, Charter Way, Macclesfield, SK10 2NA, UK
| | - Andrew Campbell
- Advanced Drug Delivery, Pharmaceutical Sciences, R&D AstraZeneca, Granta Park, Cambridge, CB21 6GH, UK.
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16
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Quodbach J, Bogdahn M, Breitkreutz J, Chamberlain R, Eggenreich K, Elia AG, Gottschalk N, Gunkel-Grabole G, Hoffmann L, Kapote D, Kipping T, Klinken S, Loose F, Marquetant T, Windolf H, Geißler S, Spitz T. Quality of FDM 3D Printed Medicines for Pediatrics: Considerations for Formulation Development, Filament Extrusion, Printing Process and Printer Design. Ther Innov Regul Sci 2021; 56:910-928. [PMID: 34826120 PMCID: PMC9492703 DOI: 10.1007/s43441-021-00354-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 11/04/2021] [Indexed: 02/08/2023]
Abstract
3d printing is capable of providing dose individualization for pediatric medicines and translating the precision medicine approach into practical application. In pediatrics, dose individualization and preparation of small dosage forms is a requirement for successful therapy, which is frequently not possible due to the lack of suitable dosage forms. For precision medicine, individual characteristics of patients are considered for the selection of the best possible API in the most suitable dose with the most effective release profile to improve therapeutic outcome. 3d printing is inherently suitable for manufacturing of individualized medicines with varying dosages, sizes, release profiles and drug combinations in small batch sizes, which cannot be manufactured with traditional technologies. However, understanding of critical quality attributes and process parameters still needs to be significantly improved for this new technology. To ensure health and safety of patients, cleaning and process validation needs to be established. Additionally, adequate analytical methods for the in-process control of intermediates, regarding their printability as well as control of the final 3d printed tablets considering any risk of this new technology will be required. The PolyPrint consortium is actively working on developing novel polymers for fused deposition modeling (FDM) 3d printing, filament formulation and manufacturing development as well as optimization of the printing process, and the design of a GMP-capable FDM 3d printer. In this manuscript, the consortium shares its views on quality aspects and measures for 3d printing from drug-loaded filaments, including formulation development, the printing process, and the printed dosage forms. Additionally, engineering approaches for quality assurance during the printing process and for the final dosage form will be presented together with considerations for a GMP-capable printer design.
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Affiliation(s)
- Julian Quodbach
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University Düsseldorf, Universitätsstr. 1, 40225, Düsseldorf, Germany.
| | - Malte Bogdahn
- Merck Healthcare KGaA, Frankfurter Str. 250, Darmstadt, Germany
| | - Jörg Breitkreutz
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University Düsseldorf, Universitätsstr. 1, 40225, Düsseldorf, Germany
| | - Rebecca Chamberlain
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University Düsseldorf, Universitätsstr. 1, 40225, Düsseldorf, Germany
| | | | | | | | | | - Lena Hoffmann
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University Düsseldorf, Universitätsstr. 1, 40225, Düsseldorf, Germany
| | | | - Thomas Kipping
- Merck Life Science KGaA, Frankfurter Str. 250, Darmstadt, Germany
| | - Stefan Klinken
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University Düsseldorf, Universitätsstr. 1, 40225, Düsseldorf, Germany
| | - Fabian Loose
- Laboratory for Manufacturing Systems, University of Applied Sciences Cologne, Betzdorfer Str. 2, 50679, Cologne, Germany
| | | | - Hellen Windolf
- Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University Düsseldorf, Universitätsstr. 1, 40225, Düsseldorf, Germany
| | - Simon Geißler
- Merck Healthcare KGaA, Frankfurter Str. 250, Darmstadt, Germany
| | - Tilmann Spitz
- Laboratory for Manufacturing Systems, University of Applied Sciences Cologne, Betzdorfer Str. 2, 50679, Cologne, Germany
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17
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Jelić D, Papović S, Vraneš M, Gadžurić S, Berto S, Alladio E, Gajić D, Janković B. Thermo-Analytical and Compatibility Study with Mechanistic Explanation of Degradation Kinetics of Ambroxol Hydrochloride Tablets under Non-Isothermal Conditions. Pharmaceutics 2021; 13:pharmaceutics13111910. [PMID: 34834325 PMCID: PMC8621728 DOI: 10.3390/pharmaceutics13111910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2021] [Revised: 10/22/2021] [Accepted: 11/08/2021] [Indexed: 11/16/2022] Open
Abstract
Ambroxol hydrochloride (AMB), used as a broncho secretolytic and an expectorant drug, is a semi-synthetic derivative of vasicine obtained from the Indian shrub Adhatoda vasica. It is a metabolic product of bromhexine. The paper provides comprehensive and detailed research on ambroxol hydrochloride, gives information on thermal stability, the mechanism of AMB degradation, and data of practical interest for optimization of formulation that contains AMB as an active compound. Investigation on pure AMB and in commercial formulation Flavamed® tablet (FT), which contains AMB as an active compound, was performed systematically using thermal and spectroscopic methods, along with a sophisticated and practical statistical approach. AMB proved to be a heat-stable and humidity-sensitive drug. For its successful formulation, special attention should be addressed to excipients since it was found that polyvinyl pyrrolidone and Mg stearate affect the thermal stability of AMB. At the same time, lactose monohydrate contributes to faster degradation of AMB and change in decomposition mechanism. It was found that the n-th order kinetic model mechanistically best describes the decomposition process of pure AMB and in Flavamed® tablets.
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Affiliation(s)
- Dijana Jelić
- Chemistry Department, Faculty of Sciences and Mathematics, University of Banja Luka, 78 000 Banja Luka, Bosnia and Herzegovina;
- Correspondence:
| | - Snežana Papović
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, 21 000 Novi Sad, Serbia; (S.P.); (M.V.); (S.G.)
| | - Milan Vraneš
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, 21 000 Novi Sad, Serbia; (S.P.); (M.V.); (S.G.)
| | - Slobodan Gadžurić
- Department of Chemistry, Biochemistry and Environmental Protection, Faculty of Sciences, University of Novi Sad, 21 000 Novi Sad, Serbia; (S.P.); (M.V.); (S.G.)
| | - Silvia Berto
- Department of Chemistry, University of Turin, 10125 Turin, Italy; (S.B.); (E.A.)
| | - Eugenio Alladio
- Department of Chemistry, University of Turin, 10125 Turin, Italy; (S.B.); (E.A.)
| | - Dragana Gajić
- Chemistry Department, Faculty of Sciences and Mathematics, University of Banja Luka, 78 000 Banja Luka, Bosnia and Herzegovina;
| | - Bojan Janković
- Department of Physical Chemistry, “Vinča” Institute of Nuclear Sciences—National Institute of the Republic of Serbia, University of Belgrade, 11 000 Belgrade, Serbia;
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18
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Be Rziņš KR, Fraser-Miller SJ, Walker GF, Rades T, Gordon KC. Investigation on Formulation Strategies to Mitigate Compression-Induced Destabilization in Supersaturated Celecoxib Amorphous Solid Dispersions. Mol Pharm 2021; 18:3882-3893. [PMID: 34529437 DOI: 10.1021/acs.molpharmaceut.1c00540] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Compression-induced destabilization was investigated in various celecoxib amorphous solid dispersions containing hydroxypropyl methylcellulose (HPMC), poly(vinylpyrrolidone)/vinyl acetate copolymer (PVP/VA), or poly(vinylpyrrolidone) (PVP) at a concentration range of 1-10% w/w. Pharmaceutically relevant (125 MPa pressure with a minimal dwell time) and extreme (500 MPa pressure with a 60 s dwell time) compression conditions were applied to these systems, and the changes in their physical stability were monitored retrospectively (i.e., in the supercooled state) using dynamic differential scanning calorimetry (DSC) and low-frequency Raman (LFR) measurements over a broad temperature range (-90 to 200 and -150 to 140 °C, respectively). Both techniques revealed similar changes in the crystallization behavior between samples, where the application of a higher compression force of 500 MPa resulted in a more pronounced destabilization effect that was progressively mitigated with increasing polymer content. However, other aspects such as more favorable intermolecular interactions did not appear to have any effect on reducing this undesirable effect. Additionally, for the first time, LFR spectroscopy was used as a viable technique to determine the secondary or local glass-transition temperature, Tg,β, a major indicator of the physical stability of neat amorphous pharmaceutical systems.
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Affiliation(s)
- Ka Rlis Be Rziņš
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
| | - Sara J Fraser-Miller
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
| | - Greg F Walker
- School of Pharmacy, University of Otago, Dunedin 9016, New Zealand
| | - Thomas Rades
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Copenhagen 1165, Denmark
| | - Keith C Gordon
- The Dodd-Walls Centre for Photonic and Quantum Technologies, Department of Chemistry, University of Otago, Dunedin 9016, New Zealand
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19
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Borde S, Paul SK, Chauhan H. Ternary solid dispersions: classification and formulation considerations. Drug Dev Ind Pharm 2021; 47:1011-1028. [PMID: 33818224 DOI: 10.1080/03639045.2021.1908342] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
The number of active pharmaceutical compounds from the biopharmaceutical classification system (BCS) belonging to Class II and IV have significantly increased in recent years. These compounds have high therapeutic potential but are difficult to formulate as oral dosage forms due to their poor aqueous solubility. The solubility and bioavailability of these poorly water-soluble compounds can be increased by various formulation approaches, such as amorphous solid dispersions (ASD), salt formation, complexations, etc. Out of these techniques, the ASD approach, where compounds are converted into amorphous form and embedded in the hydrophilic matrix, have been successfully used in many marketed preparations. The recent advancement of this ASD approach is the design of ternary solid dispersions (TSD), where an additional component is added to further improve their performance in terms of solubility, stability, and processability. This review discusses the classification, mechanism of performance improvement, preparation techniques, and characterizations for TSD.
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Affiliation(s)
- Shambhavi Borde
- School of Pharmacy and Health Professions, Creighton University, Omaha, NE, USA
| | - Sagar Kumar Paul
- School of Pharmacy and Health Professions, Creighton University, Omaha, NE, USA
| | - Harsh Chauhan
- School of Pharmacy and Health Professions, Creighton University, Omaha, NE, USA
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20
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Newman A, Zografi G. What Are the Important Factors That Influence API Crystallization in Miscible Amorphous API-Excipient Mixtures during Long-Term Storage in the Glassy State? Mol Pharm 2021; 19:378-391. [PMID: 34378939 DOI: 10.1021/acs.molpharmaceut.1c00519] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In this Perspective, the authors examine the various factors that should be considered when attempting to use miscible amorphous API-excipient mixtures (amorphous solid dispersions and coamorphous systems) to prevent the solid-state crystallization of API molecules when isothermally stored for long periods of time (a year or more) in the glassy state. After presenting an overview of a variety of studies designed to obtain a better understanding of possible mechanisms by which amorphous API undergo physical instability and by which excipients generally appear to inhibit API crystallization from the amorphous state, we examined 78 studies that reported acceptable physical stability of such systems, stored below Tg under "dry" conditions for one year or more. These results were examined more closely in terms of two major contributing factors: the degree to which a reduction in diffusional molecular mobility and API-excipient molecular interactions operates to inhibit crystallization. These two parameters were chosen because the data are readily available in early development to help compare amorphous systems. Since Tg - T = 50 K is often used as a rule of thumb for the establishing the minimum value below Tg required to reduce diffusional mobility to a period of years, it was interesting to observe that 30 of the 78 studies still produced significant physical stability at values of Tg - T < 50 K (3-47 °C), suggesting that factors besides diffusive molecular mobility likely contribute. A closer look at the Tg - T < 50 systems shows that hydrogen bonding, proton transfer, disruption of API-API self-associations (such as dimers), and possible π-π stacking were reported for most of the systems. In contrast, five crystallized systems that were monitored for a year or more were also examined. These systems exhibited Tg - T values of 9-79, with three of them exhibiting Tg - T < 50. For these three samples, none displayed molecular interactions by infrared spectroscopy. A discussion on the impact of relative humidity on long-term crystallization in the glass was included, with attention paid to the relative water vapor sorption by various excipients and effects on diffusive mobility and molecular interactions between API and excipient.
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Affiliation(s)
- Ann Newman
- Seventh Street Development Group, Kure Beach, North Carolina 28449, United States
| | - George Zografi
- School of Pharmacy, University of Wisconsin-Madison, Madison, Wisconsin 53706, United States
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21
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Bhujbal SV, Mitra B, Jain U, Gong Y, Agrawal A, Karki S, Taylor LS, Kumar S, (Tony) Zhou Q. Pharmaceutical amorphous solid dispersion: A review of manufacturing strategies. Acta Pharm Sin B 2021; 11:2505-2536. [PMID: 34522596 PMCID: PMC8424289 DOI: 10.1016/j.apsb.2021.05.014] [Citation(s) in RCA: 171] [Impact Index Per Article: 57.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2021] [Revised: 04/05/2021] [Accepted: 04/13/2021] [Indexed: 12/15/2022] Open
Abstract
Amorphous solid dispersions (ASDs) are popular for enhancing the solubility and bioavailability of poorly water-soluble drugs. Various approaches have been employed to produce ASDs and novel techniques are emerging. This review provides an updated overview of manufacturing techniques for preparing ASDs. As physical stability is a critical quality attribute for ASD, the impact of formulation, equipment, and process variables, together with the downstream processing on physical stability of ASDs have been discussed. Selection strategies are proposed to identify suitable manufacturing methods, which may aid in the development of ASDs with satisfactory physical stability.
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Key Words
- 3DP, three-dimensional printing
- ASDs, amorphous solid dispersions
- ASES, aerosol solvent extraction system
- Amorphous solid dispersions
- CAP, cellulose acetate phthalate
- CO2, carbon dioxide
- CSG, continuous-spray granulation
- Co-precipitation
- Downstream processing
- Drug delivery
- EPAS, evaporative aqueous solution precipitation
- Eudragit®, polymethacrylates derivatives
- FDM, fused deposition modeling
- GAS, gas antisolvent
- HME, hot-melt extrusion
- HPC, hydroxypropyl cellulose
- HPMC, hydroxypropyl methylcellulose
- HPMCAS, hydroxypropyl methylcellulose acetate succinate
- HPMCP, hypromellose phthalate
- Manufacturing
- Melting process
- PCA, precipitation with compressed fluid antisolvent
- PGSS, precipitation from gas-saturated solutions
- PLGA, poly(lactic-co-glycolic acid
- PVP, polyvinylpyrrolidone
- PVPVA, polyvinylpyrrolidone/vinyl acetate
- RESS, rapid expansion of a supercritical solution
- SAS, supercritical antisolvent
- SCFs, supercritical fluids
- SEDS, solution-enhanced dispersion by SCF
- SLS, selective laser sintering
- Selection criteria
- Soluplus®, polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer
- Solvent evaporation
- Stability
- Tg, glass transition temperature
- USC, ultrasound compaction
- scCO2, supercritical CO2
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Affiliation(s)
- Sonal V. Bhujbal
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA
| | - Biplob Mitra
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Uday Jain
- Material Science and Engineering, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Yuchuan Gong
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Anjali Agrawal
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Shyam Karki
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Lynne S. Taylor
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA
| | - Sumit Kumar
- Oral Product Development, Bristol Myers Squibb, Summit, NJ 07901, USA
| | - Qi (Tony) Zhou
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, IN 47907, USA
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22
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Combinations of Freeze-Dried Amorphous Vardenafil Hydrochloride with Saccharides as a Way to Enhance Dissolution Rate and Permeability. Pharmaceuticals (Basel) 2021; 14:ph14050453. [PMID: 34064796 PMCID: PMC8151567 DOI: 10.3390/ph14050453] [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: 04/04/2021] [Revised: 05/06/2021] [Accepted: 05/07/2021] [Indexed: 12/16/2022] Open
Abstract
To improve physicochemical properties of vardenafil hydrochloride (VAR), its amorphous form and combinations with excipients-hydroxypropyl methylcellulose (HPMC) and β-cyclodextrin (β-CD)-were prepared. The impact of the modification on physicochemical properties was estimated by comparing amorphous mixtures of VAR to their crystalline form. The amorphous form of VAR was obtained as a result of the freeze-drying process. Confirmation of the identity of the amorphous dispersion of VAR was obtained through the use of comprehensive analysis techniques-X-ray powder diffraction (PXRD) and differential scanning calorimetry (DSC), supported by FT-IR (Fourier-transform infrared spectroscopy) coupled with density functional theory (DFT) calculations. The amorphous mixtures of VAR increased its apparent solubility compared to the crystalline form. Moreover, a nearly 1.3-fold increase of amorphous VAR permeability through membranes simulating gastrointestinal epithelium as a consequence of the changes of apparent solubility (Papp crystalline VAR = 6.83 × 10-6 cm/s vs. Papp amorphous VAR = 8.75 × 10-6 cm/s) was observed, especially for its combinations with β-CD in the ratio of 1:5-more than 1.5-fold increase (Papp amorphous VAR = 8.75 × 10-6 cm/s vs. Papp amorphous VAR:β-CD 1:5 = 13.43 × 10-6 cm/s). The stability of the amorphous VAR was confirmed for 7 months. The HPMC and β-CD are effective modifiers of its apparent solubility and permeation through membranes simulating gastrointestinal epithelium, suggesting a possibility of a stronger pharmacological effect.
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23
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Holm TP, Knopp MM, Löbmann K, Berthelsen R. Microwave induced in situ amorphisation facilitated by crystalline hydrates. Eur J Pharm Sci 2021; 163:105858. [PMID: 33887432 DOI: 10.1016/j.ejps.2021.105858] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 04/09/2021] [Accepted: 04/16/2021] [Indexed: 11/26/2022]
Abstract
Amorphisation within the final dosage form, i.e. in situ amorphisation, seeks to circumvent the potential stability issues associated with poorly soluble drugs in amorphous solid dispersions (ASDs). Microwave irradiation has previously been shown to enable in situ preparation of ASDs, when a high amount of microwave absorbing water was introduced into the final dosage form by conditioning at high relative humidity. In this study, an alternative to this conditioning step was investigated by introducing crystal water in form of sodium dihydrogen phosphate (NaH2PO4) di-, and monohydrate, in compacts prepared with 30 % w/w celecoxib (CCX) in polyvinylpyrrolidone K12 (PVP). As controls, compacts prepared with NaH2PO4 anhydrate and without NaH2PO4 were included in the study. The quantification of amorphous CCX after microwave irradiation showed an increase in CCX amorphicity for compacts containing NaH2PO4 di-, and monohydrate with increasing irradiation time. Complete amorphisation of CCX in compacts containing NaH2PO4 di-, and monohydrate was observed after 6 min, while no appreciable amorphisation was observed for the control compacts containing NaH2PO4 anhydrate and without NaH2PO4. Modulated differential scanning calorimetric analysis revealed that a homogenous ASD was formed after 12 min and 6 min for compacts containing NaH2PO4 di-, and monohydrate, respectively. Thermal gravimetric analysis indicated that NaH2PO4 monohydrate showed higher dehydration rates compared to the dihydrate, which in turn resulted in higher compact temperatures, and overall increased the rate of amorphisation and reduced the microwave irradiation time necessary to achieve a homogenous ASD. The present results confirmed the suitability of NaH2PO4 di- and monohydrate as alternative sources of water, the primary microwave absorbing material, for in situ microwave amorphisation. The use of crystalline hydrates as water reservoirs for in situ amorphisation circumvents the time-consuming and highly impractical conditioning step previously reported in order to achieve complete amorphisation. Additionally, it allows for easier and more accurate adjustment of the compacts water content, which directly affects the temperature reached during microwave irradiation, and thus, the rate of amorphisation.
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Affiliation(s)
- Tobias Palle Holm
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | | | - Korbinian Löbmann
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark
| | - Ragna Berthelsen
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen, Denmark.
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24
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Bejaoui M, Kalfat R, Galai H. The Effect of Adding PVP to the Binary Solid Dispersion (Indomethacin: Kaolin) on the Formation of Physically Stable Amorphous Drug. J Pharm Innov 2021. [DOI: 10.1007/s12247-021-09553-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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25
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Can filaments be stored as a shelf-item for on-demand manufacturing of oral 3D printed tablets? An initial stability assessment. Int J Pharm 2021; 600:120442. [PMID: 33675925 DOI: 10.1016/j.ijpharm.2021.120442] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2020] [Revised: 02/23/2021] [Accepted: 02/25/2021] [Indexed: 12/13/2022]
Abstract
3D printing of oral solid dosage forms is a recently introduced approach for dose personalisation. Fused deposition modelling (FDM) is one of the promising and heavily researched 3D printing techniques in the pharmaceutical field. However, the successful application of this technique relies greatly on the mass manufacturing of physically and chemically stable filaments, that can be readily available as a shelf item to be 3D printed on-demand. In this work, the stability of methacrylate polymers (Eudragit EPO, RL, L100-55 and S100), hydroxypropyl cellulose (HPC SSL) and polyvinyl pyrrolidone (PVP)-based filaments over 6 months were investigated. Filaments manufactured by hot melt extrusion (HME) were stored at either 5 °C or 30 °C + 65 %RH with/without vacuuming. The effects of storage on their dimensions, visual appearance, thermal properties, and 'printability' were analysed. Theophylline content, as well as in vitro release from the 3D printed tablets were also investigated. The filaments were analysed before storage, then after 1, 3 and 6 months from the manufacturing date. Storing the filaments at these conditions had a significant effect on their physical properties, such as shape, dimensions, flexibility and hence compatibility with FDM 3D printing. In general, the methacrylate-based filaments were more physically stable and compatible with FDM 3D printing following storage. Owing to their hygroscopic nature, cellulose- and PVP-based filaments demonstrated a reduction in their glass transition temperature upon storage, leading to increased flexibility and incompatibility with FDM 3D printer. Theophylline contents was not significantly changed during the storage. This work provides preliminary data for the impact of polymer species on the long-term stability of filaments. In general, storage and packaging conditions have a major impact on the potential of on-demand manufacturing of 3D printed tablets using hot melt extruded filaments.
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26
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Ueda K, Moseson DE, Pathak V, Taylor LS. Effect of Polymer Species on Maximum Aqueous Phase Supersaturation Revealed by Quantitative Nuclear Magnetic Resonance Spectroscopy. Mol Pharm 2021; 18:1344-1355. [PMID: 33595322 DOI: 10.1021/acs.molpharmaceut.0c01174] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The polymer used in an amorphous solid dispersion (ASD) formulation impacts the maximum achievable drug supersaturation. Herein, the effect of dissolved polymer on drug concentration in the aqueous phase when a drug-rich phase was generated by liquid-liquid phase separation (LLPS) was investigated for different polymers at various concentrations of drug and polymer. Solution nuclear magnetic resonance (NMR) spectroscopy revealed that polyvinylpyrrolidone (PVP), polyvinylpyrrolidone/vinyl acetate (PVP-VA), and hypromellose (HPMC) distributed into the ibuprofen (IBP)-rich phase formed by LLPS when the amorphous solubility of IBP was exceeded. The amount of polymer in the drug-rich phase increased for higher-molecular-weight grades of PVP and HPMC. Moreover, PVP-VA showed a greater extent of distribution into the IBP-rich phase compared to PVP, and this is attributed to its reduced hydrophilicity resulting from the incorporation of vinyl acetate monomers. Direct quantification by NMR measurements indicated that the IBP concentration in the aqueous phase decreased as the amount of polymer in the IBP-rich phase increased. This can be attributed to a reduction of the chemical potential of IBP in the IBP-rich phase. The reduction in dissolved IBP concentration was greater for the IBP/PVP-VA system compared to the IBP/HPMC system, as a result of more extensive drug-polymer interactions in the former system. The present study highlights the impact of polymer selection on the attainable supersaturation of the drug and the factors that need to be considered in the formulation of ASDs to obtain optimized in vivo performance.
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Affiliation(s)
- Keisuke Ueda
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba 260-8675, Japan.,Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Dana E Moseson
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Vaibhav Pathak
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
| | - Lynne S Taylor
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
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Qiang W, Löbmann K, McCoy CP, Andrews GP, Zhao M. Microwave-Induced In Situ Amorphization: A New Strategy for Tackling the Stability Issue of Amorphous Solid Dispersions. Pharmaceutics 2020; 12:pharmaceutics12070655. [PMID: 32664477 PMCID: PMC7408542 DOI: 10.3390/pharmaceutics12070655] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 06/24/2020] [Accepted: 07/03/2020] [Indexed: 02/07/2023] Open
Abstract
The thermodynamically unstable nature of amorphous drugs has led to a persistent stability issue of amorphous solid dispersions (ASDs). Lately, microwave-induced in situ amorphization has been proposed as a promising solution to this problem, where the originally loaded crystalline drug is in situ amorphized within the final dosage form using a household microwave oven prior to oral administration. In addition to circumventing issues with physical stability, it can also simplify the problematic downstream processing of ASDs. In this review paper, we address the significance of exploring and developing this novel technology with an emphasis on systemically reviewing the currently available literature in this pharmaceutical arena and highlighting the underlying mechanisms involved in inducing in situ amorphization. Specifically, in order to achieve a high drug amorphicity, formulations should be composed of drugs with high solubility in polymers, as well as polymers with high hygroscopicity and good post-plasticized flexibility of chains. Furthermore, high microwave energy input is considered to be a desirable factor. Lastly, this review discusses challenges in the development of this technology including chemical stability, selection criteria for excipients and the dissolution performance of the microwave-induced ASDs.
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Affiliation(s)
- Wei Qiang
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (W.Q.); (C.P.M.); (G.P.A.)
| | - Korbinian Löbmann
- Department of Pharmacy, University of Copenhagen, 2100 Copenhagen, Denmark;
| | - Colin P. McCoy
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (W.Q.); (C.P.M.); (G.P.A.)
| | - Gavin P. Andrews
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (W.Q.); (C.P.M.); (G.P.A.)
- China Medical University- Queen’s University Belfast Joint College (CQC), China Medical University, Shenyang 110000, China
| | - Min Zhao
- School of Pharmacy, Queen’s University Belfast, Belfast BT9 7BL, UK; (W.Q.); (C.P.M.); (G.P.A.)
- China Medical University- Queen’s University Belfast Joint College (CQC), China Medical University, Shenyang 110000, China
- Correspondence: ; Tel.: +44-028-9097-2798; +86-024-31939488
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Tawfeek HM, Chavan T, Kunda NK. Effect of Spray Drying on Amorphization of Indomethacin Nicotinamide Cocrystals; Optimization, Characterization, and Stability Study. AAPS PharmSciTech 2020; 21:181. [PMID: 32607628 DOI: 10.1208/s12249-020-01732-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Accepted: 06/14/2020] [Indexed: 01/16/2023] Open
Abstract
Cocrystals have gained a lot of consideration regarding its superior role in enhancement of solubility and dissolution of the included API. Cocrystals could be converted to coamorphous systems via different techniques like milling and quench cooling; however, the use of spray-drying technique has not been investigated before. So, the aim of this study was to explore the effect of spray drying on the amorphization of indomethacin/nicotinamide, INDNIC, as model cocrystals. Spray-drying operating parameters were optimized using the Taguchi design of experiment for maximum powder yield and low moisture content. The obtained INDNIC spray-dried cocrystals were characterized for their degree of crystallinity, morphology, moisture content, and dissolution performance. In addition, stability study was performed at different temperature and humidity conditions. Experimental design results delineate that spray-drying inlet temperature and cocrystal concentrations as the most influential factors for maximum powder yield and low moisture content. Powder X-ray diffraction and differential scanning calorimetry studies revealed the conversion of INDNIC cocrystals to a partial coamorphous or coamorphous structure without dissociation of INDNIC molecular structure. INDNIC coamorphous powders showed a significantly higher release of IND compared with cocrystals and remain physically stable for 2 months when stored in the refrigerator.
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Alhijjaj M, Belton P, Fabian L, Reading M, Qi S. Automation Potential of a New, Rapid, Microscopy-Based Method for Screening Drug-Polymer Solubility. ACS OMEGA 2020; 5:11402-11410. [PMID: 32478229 PMCID: PMC7254515 DOI: 10.1021/acsomega.0c00429] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
For the pharmaceutical industry, the preformulation screening of the compatibility of drug and polymeric excipients can often be time-consuming because of the use of trial-and-error approaches. This is also the case for selecting highly effective polymeric excipients for forming molecular dispersions in order to improve the dissolution and subsequent bio-availability of a poorly soluble drug. Previously, we developed a new thermal imaging-based rapid screening method, thermal analysis by structure characterization (TASC), which can rapidly detect the melting point depression of a crystalline drug in the presence of a polymeric material. In this study, we used melting point depression as an indicator of drug solubility in a polymer and further explored the potential of using the TASC method to rapidly screen and identify polymers in which a drug is likely to have high solubility. Here, we used a data bank of 5 model drugs and 10 different pharmaceutical grade polymers to validate the screening potential of TASC. The data indicated that TASC could provide significant improvement in the screening speed and reduce the materials used without compromising the sensitivity of detection. It should be highlighted that the current method is a screening method rather than a method that provides absolute measurement of the degree of solubility of a drug in a polymer. The results of this study confirmed that the TASC results of each drug-polymer pair could be used in data matrices to indicate the presence of significant interaction and solubility of the drug in the polymer. This forms the foundation for automating the screening process using artificial intelligence.
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Affiliation(s)
- Muqdad Alhijjaj
- School of Pharmacy, University of East Anglia, Norwich NR4 7TJ, Norfolk, U.K.
- Department of Pharmaceutics,
College of Pharmacy, University of Basrah, Basrah 61004, Iraq
| | - Peter Belton
- School of Chemistry, University of East Anglia, Norwich NR4 7TJ, Norfolk, U.K.
| | - Laszlo Fabian
- School of Pharmacy, University of East Anglia, Norwich NR4 7TJ, Norfolk, U.K.
| | | | - Sheng Qi
- School of Pharmacy, University of East Anglia, Norwich NR4 7TJ, Norfolk, U.K.
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30
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Li M, Meng F, Tsutsumi Y, Amoureux JP, Xu W, Lu X, Zhang F, Su Y. Understanding Molecular Interactions in Rafoxanide–Povidone Amorphous Solid Dispersions from Ultrafast Magic Angle Spinning NMR. Mol Pharm 2020; 17:2196-2207. [DOI: 10.1021/acs.molpharmaceut.0c00317] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Mingyue Li
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Fan Meng
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, Texas 78712, United States
| | | | - Jean-Paul Amoureux
- Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, UMR 8181-UCCS Unit of Catalysis and Chemistry of Solids, F-59000 Lille, France
- Bruker Biospin, 34 Rue de l’Industrie, F-67166 Wissembourg, France
- Riken NMR Science and Development Division, Yokohama, 230-0045 Kanagawa Japan
| | - Wei Xu
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Xingyu Lu
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Feng Zhang
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, Texas 78712, United States
| | - Yongchao Su
- Pharmaceutical Sciences, Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
- Division of Molecular Pharmaceutics and Drug Delivery, College of Pharmacy, The University of Texas at Austin, Austin, Texas 78712, United States
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907, United States
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31
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Bannow J, Karl M, Larsen PE, Hwu ET, Rades T. Direct Measurement of Lateral Molecular Diffusivity on the Surface of Supersaturated Amorphous Solid Dispersions by Atomic Force Microscopy. Mol Pharm 2020; 17:1715-1722. [PMID: 32207959 DOI: 10.1021/acs.molpharmaceut.0c00176] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Quantifying molecular surface diffusivity is of broad interest in many different fields of science and technology. In this study, the method of surface grating decay is utilized to investigate the surface diffusion of practical relevant amorphous solid dispersions of indomethacin and the polymeric excipient Soluplus (a polyvinyl caprolactam-polyvinyl acetate-polyethylene glycol graft copolymer) at various polymer concentrations (1-20% w/w). The study confirms that measuring surface diffusivity below the system's glass transition temperature is possible with a simplified atomic force microscopy setup. Results highlight a striking polymer influence on the surface diffusivity of drug molecules at low polymer concentrations and a turnover point to a polymer dominated diffusion at around three percent (w/w) polymer concentration. The surface diffusion measurements further correlate well with the observed increase in physical stability of the system as measured by X-ray powder diffraction. These findings are of vital interest in both the applied use and fundamental understanding of amorphous solid dispersions.
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Affiliation(s)
- Jacob Bannow
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 København Ø, Denmark
| | - Maximilian Karl
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 København Ø, Denmark
| | - Peter Emil Larsen
- Department of Health Technology, Technical University of Denmark, Ørsteds Plads 345C, 2800 Kongens Lyngby, Denmark
| | - En Te Hwu
- Department of Health Technology, Technical University of Denmark, Ørsteds Plads 345C, 2800 Kongens Lyngby, Denmark
| | - Thomas Rades
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 København Ø, Denmark
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32
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UniORV, a New Multi-Unit Dosage Form, Improved Biopharmaceutical Properties of Tacrolimus in Rats and Humans. Pharm Res 2020; 37:64. [DOI: 10.1007/s11095-020-02785-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 02/16/2020] [Indexed: 11/25/2022]
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33
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Sarpal K, Tower CW, Munson EJ. Investigation into Intermolecular Interactions and Phase Behavior of Binary and Ternary Amorphous Solid Dispersions of Ketoconazole. Mol Pharm 2020; 17:787-801. [PMID: 31860316 DOI: 10.1021/acs.molpharmaceut.9b00970] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
Conventionally, amorphous solid dispersions (ASDs) have been formulated as a binary matrix, but in recent years a new class of ASDs has emerged, where generally a second polymer is also added to the formulation. Having the presence of a second polymer necessitates a comprehensive solid-state characterization to study the intermolecular interactions and phase behavior on a molecular level. With this goal in mind, ketoconazole (KET) was selected as a model drug, and hydroxypropyl methyl cellulose (HPMC) and poly(acrylic acid) (PAA) were chosen as polymeric carriers. The binary and ternary ASDs were characterized by differential scanning calorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, solid-state nuclear magnetic resonance (SSNMR) spectroscopy, and powder X-ray diffraction (PXRD). The binary KET:HPMC dispersions lacked any specific interactions, whereas binary KET:PAA dispersions and ternary KET:PAA:HPMC dispersions showed evidence for ionic and hydrogen bonding interactions. The 13C SSNMR deconvolution study established a comparison for molecular interactions between the binary KET:PAA and ternary KET:PAA:HPMC dispersions, with the binary KET:PAA system showing higher prevalence of ionic and hydrogen bonds than the ternary KET:PAA:HPMC system. Moreover, individual binary and ternary ASDs were found to be homogeneous on a nanometric level, implying the presence of a second polymer did not impact the phase homogeneity. In addition, a stronger interaction in binary KET:PAA and ternary KET:HPMC:PAA systems translated to better physical stability at different storage conditions. Through this case study it is recommended that a comprehensive investigation is needed to study the impact of using two polymers in ASD formulations in terms underlying intermolecular interactions and physical stability.
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Affiliation(s)
- Kanika Sarpal
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, Kentucky 40536, United States
| | - Cole W Tower
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, Kentucky 40536, United States.,Department of Chemistry, Allegheny College, Meadville, Pennsylvania 16335, United States
| | - Eric J Munson
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, 789 South Limestone Street, Lexington, Kentucky 40536, United States
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34
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Li J, Hubert M, Pinnamaneni S, Tao L, Zhao J, Sharif S, Ramakrishnan RK, Nazarenko S. Effect of Moisture Sorption on Free Volume and Relaxation of Spray Dried Dispersions: Relation to Drug Recrystallization. J Pharm Sci 2020; 109:1050-1058. [DOI: 10.1016/j.xphs.2019.10.018] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Revised: 09/22/2019] [Accepted: 10/08/2019] [Indexed: 11/15/2022]
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35
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Xia X, Tan Z, Fan Y, Hu Y, Deng J. Preparation and evaluation of a novel solid dispersion using leucine as carrier. J Pharm Pharmacol 2019; 72:175-184. [PMID: 31846087 DOI: 10.1111/jphp.13200] [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: 01/12/2019] [Accepted: 10/21/2019] [Indexed: 12/15/2022]
Abstract
OBJECTIVE The aim of this study was to develop a novel formulation of oleanolic acid (OA) solid dispersion (SD), using leucine (Leu) as the carrier to improve OA oral bioavailability. METHODS The OA-Leu SD was prepared by solvent evaporation and was evaluated in vitro using differential scanning calorimetry, X-ray powder diffraction, scanning electron microscopy, flowability, hygroscopicity and dissolution test. The stability of the SD was evaluated using accelerated testing. In vivo pharmacokinetic tests were performed in male Sprague Dawley rats using a liquid chromatography tandem-mass spectrometry bioanalytical method. KEY FINDINGS OA-Leu SD was successfully prepared, and OA was mostly in an amorphous state. More than 80% of OA could dissolve in OA-Leu SD in 20 min, while only 13.4% of free OA dissolved. The powder flow of OA-Leu SD was clearly improved compared with free OA and its moisture absorption was 3.4%. The accelerated testing further demonstrated that SD could maintain OA in an amorphous state at 40 °C for 6 months. OA-Leu SD showed higher relative oral bioavailability (189.7%) than free OA in rats. CONCLUSIONS Using Leu as a carrier produced a SD with good flowability, low hygroscopicity and high bioavailability.
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Affiliation(s)
- Xiaojing Xia
- Department of Pharmaceutics, Zhejiang Pharmaceutical College, Ningbo, Zhejiang, China
| | - Zeng Tan
- Department of Pharmaceutics, Zhejiang Pharmaceutical College, Ningbo, Zhejiang, China
| | - Yaru Fan
- Department of Pharmaceutics, Zhejiang Pharmaceutical College, Ningbo, Zhejiang, China
| | - Ying Hu
- Department of Pharmaceutics, Zhejiang Pharmaceutical College, Ningbo, Zhejiang, China
| | - Jin Deng
- Department of Pharmaceutics, China Pharmaceutical University, Nanjing, Jiangsu, China
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36
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Effects of Different Formulation Methods on Drug Crystallinity, Drug-Carrier Interaction, and Ex Vivo Permeation of a Ternary Solid Dispersion Containing Nisoldipine. J Pharm Innov 2019. [DOI: 10.1007/s12247-019-09415-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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37
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Honick M, Sarpal K, Alayoubi A, Zidan A, Hoag SW, Hollenbeck RG, Munson EJ, Polli JE. Utility of Films to Anticipate Effect of Drug Load and Polymer on Dissolution Performance from Tablets of Amorphous Itraconazole Spray-Dried Dispersions. AAPS PharmSciTech 2019; 20:331. [PMID: 31677012 DOI: 10.1208/s12249-019-1541-6] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 09/16/2019] [Indexed: 11/30/2022] Open
Abstract
Because spray-dried dispersion (SDD) performance depends on polymer selection and drug load, time- and resource-sparing methods to screen drug/polymer combinations before spray drying are desirable. The primary objective was to assess the utility of films to anticipate the effects of drug load and polymer grade on dissolution performance of tablets containing SDDs of itraconazole (ITZ). A secondary objective was to characterize the solid-state attributes of films and SDDs to explain drug load and polymer effects on dissolution performance. SDDs employed three different grades of hypromellose acetate succinate (i.e., either HPMCAS-L, HPMCAS-M, or HPMCAS-H). Solid-state characterization employed differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD), and solid-state nuclear magnetic resonance (ssNMR) spectroscopy. Results indicate that films correctly anticipated the effects of drug load and polymer on dissolution performance. The best dissolution profiles were observed under the following conditions: 20% drug loading performed better than 30% for both films and SDDs, and the polymer grade rank order was HPMCAS-L > HPMCAS-M > HPMCAS-H for both films and SDDs. No dissolution was detected from films or SDDs containing HPMCAS-H. Solid-state characterization revealed percent crystallinity and phase miscibility as contributing factors to dissolution, but were not the sole factors. Amorphous content in films varied with drug load (10% > 20% > 30%) and polymer grades (HPMCAS-L > HPMCAS-M > HPMCAS-H), in agreement with dissolution. In conclusion, films anticipated the rank-order effects of drug load and polymer grade on dissolution performance from SDDs of ITZ, in part through percent crystallinity and phase miscibility influences.
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Tran PH, Duan W, Lee BJ, Tran TT. Modulation of Drug Crystallization and Molecular Interactions by Additives in Solid Dispersions for Improving Drug Bioavailability. Curr Pharm Des 2019; 25:2099-2107. [DOI: 10.2174/1381612825666190618102717] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Accepted: 05/24/2019] [Indexed: 11/22/2022]
Abstract
Background::
An increase in poorly water-soluble drugs makes the design of drug delivery systems
challenging.
Methods::
Currently, a number of prospective solid dispersions have been investigated with potential applications
for delivering a variety of poorly water-soluble drugs. A number of traditional solid dispersions and modifiedsolid
dispersions offer attractive advantages in the fabrication, design and development of those drugs for effective
therapeutics.
Results::
Although traditional solid dispersions can produce a higher release rate, resulting in higher bioavailability
compared to conventional dosage forms, this method is not always a promising approach. Modified-solid
dispersion has demonstrated both the ability of its polymers to transform drug crystals into amorphous forms and
molecular interactivity, thereby improving drug dissolution rate and bioavailability, especially with tough drugs.
However, the classification of modified-solid dispersion, which guides the selection of the right strategy in solid
dispersion preparation, remains ill-defined.
Conclusions::
This review focused on effective strategies in using additives in solid dispersion for improving drug
bioavailability.
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Affiliation(s)
| | - Wei Duan
- Deakin University, School of Medicine, Geelong, Australia
| | - Beom-Jin Lee
- College of Pharmacy, Ajou University, Suwon, Korea
| | - Thao T.D. Tran
- Department for Management of Science and Technology Development, Ton Duc Thang University, Ho Chi Minh City, Vietnam
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Yi S, Wang J, Lu Y, Ma R, Gao Q, Liu S, Xiong S. Novel Hot Melt Extruded Matrices of Hydroxypropyl Cellulose and Amorphous Felodipine-Plasticized Hydroxypropyl Methylcellulose as Controlled Release Systems. AAPS PharmSciTech 2019; 20:219. [PMID: 31201583 DOI: 10.1208/s12249-019-1435-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2019] [Accepted: 05/23/2019] [Indexed: 01/23/2023] Open
Abstract
Hydroxypropyl methylcellulose (HPMC) is a hydrophilic retarding-release polymer with the limited application in hot melt extrusion (HME) due to its high glass transition temperature (Tg 181-191°C) and melt viscosity. The aim of this study is to develop hot melt extruded matrices using hydroxypropyl cellulose (HPC) and felodipine (FLDP) with HPMC for controlled release and explore the relations of their specialty, processability, and structure with the product properties. Results showed that FLDP/HPCEF/HPMC can be extruded at 160°C with torques not more than 0.5 N·m. The extruded matrices of FLDP/HPCEF/HPMCK15M (10:45:45 and 30:35:35) achieved the controlled release for 24 h. Rheological behaviors demonstrated that HPCEF and FLDP were miscible with HPMCK15M, attaining maximum 30% FLDP soluble in the molten mixtures. HPCEF and FLDP decreased the complex viscosity and plasticized HPMCK15M to improve the extrusion processing. DSC and FT-IR indicated that the molten soluble FLDP was amorphous in the extruded matrices by hydrogen bonding with HPCEF/HPMCK15M. SEM/energy-dispersive X-ray microanalysis illustrated that the microstructure of extrudates was surface dense and interior loose, and FLDP was homogenously dispersed. Three-point bending test revealed that the plasticizers of HPCEF and FLDP contributed differently to the mechanical properties. HPCEF decreased the flexural modulus of HPMCK15M while that of HPCEF/HPMCK15M was increased by FLDP. Besides controlled release, low moisture absorption and enhanced stability were also the correlated achievements. Therefore, HPCEF-combined poorly water-soluble drugs to plasticize HPMCK15M provide an alternative novel potential approach to realize the controlled-release delivery via HME.
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40
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Crystallization Tendency of Pharmaceutical Glasses: Relevance to Compound Properties, Impact of Formulation Process, and Implications for Design of Amorphous Solid Dispersions. Pharmaceutics 2019; 11:pharmaceutics11050202. [PMID: 31052392 PMCID: PMC6572324 DOI: 10.3390/pharmaceutics11050202] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2019] [Revised: 04/24/2019] [Accepted: 04/24/2019] [Indexed: 11/17/2022] Open
Abstract
Amorphous solid dispersions (ASDs) are important formulation strategies for improving the dissolution process and oral bioavailability of poorly soluble drugs. Physical stability of a candidate drug must be clearly understood to design ASDs with superior properties. The crystallization tendency of small organics is frequently estimated by applying rapid cooling or a cooling/reheating cycle to their melt using differential scanning calorimetry. The crystallization tendency determined in this way does not directly correlate with the physical stability during isothermal storage, which is of great interest to pharmaceutical researchers. Nevertheless, it provides important insights into strategy for the formulation design and the crystallization mechanism of the drug molecules. The initiation time for isothermal crystallization can be explained using the ratio of the glass transition and storage temperatures (Tg/T). Although some formulation processes such as milling and compaction can enhance nucleation, the Tg/T ratio still works for roughly predicting the crystallization behavior. Thus, design of accelerated physical stability test may be possible for ASDs. The crystallization tendency during the formulation process and the supersaturation ability of ASDs may also be related to the crystallization tendency determined by thermal analysis. In this review, the assessment of the crystallization tendency of pharmaceutical glasses and its relevance to developmental studies of ASDs are discussed.
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41
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Lu X, Huang C, Lowinger MB, Yang F, Xu W, Brown CD, Hesk D, Koynov A, Schenck L, Su Y. Molecular Interactions in Posaconazole Amorphous Solid Dispersions from Two-Dimensional Solid-State NMR Spectroscopy. Mol Pharm 2019; 16:2579-2589. [DOI: 10.1021/acs.molpharmaceut.9b00174] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Xingyu Lu
- Merck Research Laboratories (MRLs), Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Chengbin Huang
- Merck Research Laboratories (MRLs), Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
- School of Pharmacy, University of Wisconsin−Madison, Madison, Wisconsin 53705, United States
| | - Michael B. Lowinger
- Merck Research Laboratories (MRLs), Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Fengyuan Yang
- Merck Research Laboratories (MRLs), Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
- Ashland Inc., Wilmington, Delaware 19808, United States
| | - Wei Xu
- Merck Research Laboratories (MRLs), Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Chad D. Brown
- Merck Research Laboratories (MRLs), Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - David Hesk
- Merck Research Laboratories (MRLs), Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Athanas Koynov
- Merck Research Laboratories (MRLs), Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Luke Schenck
- Merck Research Laboratories (MRLs), Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
| | - Yongchao Su
- Merck Research Laboratories (MRLs), Merck & Co., Inc., Kenilworth, New Jersey 07033, United States
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42
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Shi X, Xu T, Huang W, Fan B, Sheng X. Stability and Bioavailability Enhancement of Telmisartan Ternary Solid Dispersions: the Synergistic Effect of Polymers and Drug-Polymer(s) Interactions. AAPS PharmSciTech 2019; 20:143. [PMID: 30887265 DOI: 10.1208/s12249-019-1358-3] [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: 09/29/2018] [Accepted: 03/05/2019] [Indexed: 11/30/2022] Open
Abstract
The purpose of this study was to investigate the synergistic effect of polymers and drug-polymer(s) interactions on the improved stability and bioavailability of telmisartan (TEL) ternary solid dispersions. As a water-insoluble drug, 40 and 160 mg doses of TEL tablets exhibited bioavailabilities of 42% and 58%, respectively. Through polymer screening, PVP K30 and/or Soluplus were selected and used at different concentrations to prepare TEL amorphous solid dispersions by solvent evaporation. Compared to pure TEL and TEL-PVP K30/Soluplus binary solid dispersions, TEL-PVP K30-Soluplus ternary solid dispersions demonstrated significant advantages, including higher dissolution (over 90% release at 60 min), better amorphous stability (physically stable in 90 days), and improved oral bioavailability (Cmax of 5535.819 ± 325.67 ng/mL and tmax of 1 h). These advantages were related to the complementarity of PVP K30 and Soluplus on TEL. PVP K30 had a better activity to solubilize TEL and achieved a high TEL initial concentration in dissolution media. Simultaneously, the ability of Soluplus to assist in the maintenance of supersaturation played an important role. PVP K30 and Soluplus together inhibited crystallization of the drug at different stages. The existence and intensity of drug-polymer interactions were also determined by DSC (Tg determination) and FT-IR. At the molecular level, a hypothesis was also proposed that the enhancements resulted from the contribution of the synergistic effect between PVP K30 and Soluplus. These results suggested that two polymers, in a combination and via a synergistic effect, could further enhance the bioavailability and amorphous stability of ternary solid dispersions.
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Tang J, Bao J, Shi X, Sheng X, Su W. Preparation, optimisation, and in vitro-in vivo evaluation of febuxostat ternary solid dispersion. J Microencapsul 2018; 35:454-466. [PMID: 30229692 DOI: 10.1080/02652048.2018.1526339] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The research aimed to prepare febuxostat (FEB) solid dispersion through solvent evaporation. Optimised solid dispersion composed of FEB, polyvinylpyrrolidone (PVP K30) and poloxamer at a ratio of 1:3:3 was characterised. Powder X-ray diffraction (XRD) and differential scanning calorimetry (DSC) indicated FEB was transformed from crystalline into the amorphous state in solid dispersion and scanning electron microscopy (SEM) revealed the morphology. Fourier transform infrared spectroscopy (FT-IR) suggested the interactions formed between FEB and polymers. A remarkable increase was observed of the optimised formulation in saturation solubility, dissolution studies (96.17 ± 0.79% in pH 6.0), and bioavailability (Cmax 18.25 ± 2.44 vs. 7.72 ± 0.48 μg/mL and AUC0-∞ 53.62 ± 7.63 vs. 34.76 ± 2.45 μg·h/mL). Besides, the FEB solid dispersion showed great stability after 90 days storage. Thus, the present study supports the rationality of PVP K30 and poloxamer188 as co-carriers for the preparation of FEB solid dispersion.
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Affiliation(s)
- Jingjing Tang
- a Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals , Zhejiang University of Technology , Hangzhou , PR China
| | - Jiayin Bao
- a Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals , Zhejiang University of Technology , Hangzhou , PR China
| | - Xiangjun Shi
- a Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals , Zhejiang University of Technology , Hangzhou , PR China
| | - Xiaoxia Sheng
- a Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals , Zhejiang University of Technology , Hangzhou , PR China
| | - Weike Su
- a Collaborative Innovation Center of Yangtze River Delta Region Green Pharmaceuticals , Zhejiang University of Technology , Hangzhou , PR China
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Potter CB, Davis MT, Albadarin AB, Walker GM. Investigation of the Dependence of the Flory-Huggins Interaction Parameter on Temperature and Composition in a Drug-Polymer System. Mol Pharm 2018; 15:5327-5335. [PMID: 30259745 DOI: 10.1021/acs.molpharmaceut.8b00797] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The Flory-Huggins (F-H) solubility equation has been widely used to describe the solubility of a small-molecule drug in a polymeric carrier and thus determine the design space available for formulating a stable amorphous solid dispersion. The F-H interaction parameter (χ) describes the thermodynamic properties of drug-polymer solutions and accounts for any enthalpic and entropic changes in solubility. Many studies have found that for a limited compositional range, χ varies proportionally to the inverse of the melting temperature of the drug. We explored this relationship using a highly sensitive DSC technique to detect remaining residual crystalline active pharmaceutical ingredients (APIs) following annealing of ball milled mixtures of crystalline itraconazole (ITZ) and either Soluplus or hydroxypropyl methylcellulose phthalate (HPMCP) at temperatures near the estimated solubility curve. Depending on the experimental approach taken, the measurement of drug-polymer solubility can be restricted to mixtures with a high proportion of drug, but in this study, solubility was experimentally determined for mixtures with API content as low as 10 wt %. Results suggest that the proposed linear relationship does not extend to compositions with smaller amounts of API, instead indicating that χ was both temperature- and composition-dependent for the systems studied. The feasibility of this technique to measure interactions in a ternary system containing itraconazole and both polymers was also determined; ITZ-HPMCP exhibited the most favorable values of χ, while ITZ-Soluplus and ITZ-Soluplus-HPMCP demonstrated similar interaction parameters.
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Affiliation(s)
- Catherine B Potter
- Synthesis and Solid State Pharmaceutical Centre (SSPC), Bernal Institute , University of Limerick , Limerick V94 T9PX , Ireland
| | - Mark T Davis
- Synthesis and Solid State Pharmaceutical Centre (SSPC), Bernal Institute , University of Limerick , Limerick V94 T9PX , Ireland
| | - Ahmad B Albadarin
- Synthesis and Solid State Pharmaceutical Centre (SSPC), Bernal Institute , University of Limerick , Limerick V94 T9PX , Ireland
| | - Gavin M Walker
- Synthesis and Solid State Pharmaceutical Centre (SSPC), Bernal Institute , University of Limerick , Limerick V94 T9PX , Ireland
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Zuo W, Li N, Zhao Y, Fu T, Fei W, Yu R, Yang J. Synchronized release of bufadienolides in a stable Lutrol F127 based solid dispersion prepared with spray congealing. Drug Dev Ind Pharm 2018; 44:1817-1825. [DOI: 10.1080/03639045.2018.1503290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Wenbao Zuo
- School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
| | - Na Li
- School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
| | - Yue Zhao
- School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
| | - Tingting Fu
- School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
| | - Wenling Fei
- School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
| | - Rui Yu
- School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
| | - Jianhong Yang
- School of Pharmacy, Ningxia Medical University, Yinchuan, PR China
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46
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Sheng X, Tang J, Bao J, Shi X, Su W. Enhancement of in vitro dissolution and in vivo performance/oral absorption of FEB-poloxamer-TPGS solid dispersion. J Drug Deliv Sci Technol 2018. [DOI: 10.1016/j.jddst.2018.06.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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47
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Deshpande TM, Shi H, Pietryka J, Hoag SW, Medek A. Investigation of Polymer/Surfactant Interactions and Their Impact on Itraconazole Solubility and Precipitation Kinetics for Developing Spray-Dried Amorphous Solid Dispersions. Mol Pharm 2018; 15:962-974. [DOI: 10.1021/acs.molpharmaceut.7b00902] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Tanvi M. Deshpande
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201, United States
| | - Helen Shi
- Vertex Pharmaceutical Incorporated, Boston, Massachusetts 02210, United States
| | - John Pietryka
- Vertex Pharmaceutical Incorporated, Boston, Massachusetts 02210, United States
| | - Stephen W. Hoag
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland 21201, United States
| | - Ales Medek
- Vertex Pharmaceutical Incorporated, Boston, Massachusetts 02210, United States
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48
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Lehmkemper K, Kyeremateng SO, Heinzerling O, Degenhardt M, Sadowski G. Impact of Polymer Type and Relative Humidity on the Long-Term Physical Stability of Amorphous Solid Dispersions. Mol Pharm 2017; 14:4374-4386. [DOI: 10.1021/acs.molpharmaceut.7b00492] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Kristin Lehmkemper
- Global Pharmaceutical R&D, AbbVie Deutschland GmbH & Co. KG, Knollstraße, D-67061 Ludwigshafen am Rhein, Germany
- Laboratory
of Thermodynamics, Department of Biochemical and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 70, D-44227 Dortmund, Germany
| | - Samuel O. Kyeremateng
- Global Pharmaceutical R&D, AbbVie Deutschland GmbH & Co. KG, Knollstraße, D-67061 Ludwigshafen am Rhein, Germany
| | - Oliver Heinzerling
- Global Pharmaceutical R&D, AbbVie Deutschland GmbH & Co. KG, Knollstraße, D-67061 Ludwigshafen am Rhein, Germany
| | - Matthias Degenhardt
- Global Pharmaceutical R&D, AbbVie Deutschland GmbH & Co. KG, Knollstraße, D-67061 Ludwigshafen am Rhein, Germany
| | - Gabriele Sadowski
- Laboratory
of Thermodynamics, Department of Biochemical and Chemical Engineering, TU Dortmund, Emil-Figge-Straße 70, D-44227 Dortmund, Germany
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49
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Desai PM, Hogan RC, Brancazio D, Puri V, Jensen KD, Chun JH, Myerson AS, Trout BL. Integrated hot-melt extrusion – injection molding continuous tablet manufacturing platform: Effects of critical process parameters and formulation attributes on product robustness and dimensional stability. Int J Pharm 2017; 531:332-342. [DOI: 10.1016/j.ijpharm.2017.08.097] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2017] [Revised: 08/17/2017] [Accepted: 08/20/2017] [Indexed: 02/08/2023]
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50
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Chmiel K, Knapik-Kowalczuk J, Jurkiewicz K, Sawicki W, Jachowicz R, Paluch M. A New Method To Identify Physically Stable Concentration of Amorphous Solid Dispersions (I): Case of Flutamide + Kollidon VA64. Mol Pharm 2017; 14:3370-3380. [PMID: 28787567 DOI: 10.1021/acs.molpharmaceut.7b00382] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
In this paper, a novel approach to determine stable concentration in API-polymer systems is presented. As a model, binary amorphous mixtures flutamide (FL) drug with a copolymer Kollidon VA64 (PVP/VA) have been used. It is worthwhile to note that finding an effective method to achieve this goal is a matter of great importance because physical stability of the amorphous pharmaceuticals is the key issue that is investigated worldwide. Due to the fact that molecular dynamics was found to be the crucial factor affecting physical stability of disordered pharmaceuticals, we examined it for both neat FL and its PVP/VA mixtures by means of broadband dielectric spectroscopy (BDS). Thorough investigation of the impact of polymeric additive on the molecular mobility of disordered FL reveals unusual, previously unreported behavior. Namely, simultaneously with the beginning of the recrystallization process, we observe some transformation from unstable supersaturated concentration of investigated mixture to the different, unknown concentration of FL-PVP/VA. Observed, during BDS experiment, transformation enables us to determine the limiting, highly physically stable concentration of FL in PVP/VA polymer (saturated solution), which is equivalent to FL + 41% wt. of PVP/VA. The described high physical stability of this unveiled system has been confirmed by means of long-term XRD measurements. According to our knowledge, this is the first time when such a behavior has been observed by means of BDS.
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Affiliation(s)
- K Chmiel
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzow, Poland
| | - J Knapik-Kowalczuk
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzow, Poland
| | - K Jurkiewicz
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzow, Poland
| | - W Sawicki
- Department of Physical Chemistry, Medical University of Gdansk , 84-416 Gdansk, Poland
| | - R Jachowicz
- Faculty of Pharmacy, Department of Pharmaceutical Technology and Biopharmaceutics, Jagiellonian University , Medyczna 9, 30-688 Kraków, Poland
| | - M Paluch
- Institute of Physics, University of Silesia , ul. Uniwersytecka 4, 40-007 Katowice, Poland.,Silesian Center for Education and Interdisciplinary Research, ul. 75 Pułku Piechoty 1a, 41-500 Chorzow, Poland
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