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Schertel S, Salar-Behzadi S, Karrer J, Laggner P, Zimmer A. Impact of polysorbate 65 on tripalmitin crystal growth and release stability of hot melt coated multiparticulate systems. Int J Pharm 2021; 607:120970. [PMID: 34363917 DOI: 10.1016/j.ijpharm.2021.120970] [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: 05/10/2021] [Revised: 07/20/2021] [Accepted: 07/30/2021] [Indexed: 11/29/2022]
Abstract
Hydrochlorothiazide (HCT) multiparticulate systems (MPS) were hot melt coated with the binary mixture of tripalmitin (PPP) and polysorbate 65 (PS 65) to gain an immediate release profile. Once, HCT MPS were produced with a constant ratio of PPP/PS 65 (90:10) at three different coating amounts (15, 25, and 60%w/w) and once the PPP/PS 65 ratio was varied on 98:2 and 80:20, by keeping the coating amount at 60%w/w. PS 65 induced the polymorphic transformation of PPP from the α-form to its most stable β-form right after the hot melt coating (HMC). A release alteration of HCT, either accelerated or decelerated, occurred after the storage under accelerated conditions. The effect of the API core on the lipid lamellar configuration, the thermal behavior of lipid coating, and the effect of PS 65 concentration on the crystal growth of PPP were investigated via X-ray diffraction and DSC. While a low amount of PS 65 was sufficient to promote crystal growth of PPP and resulted in a decelerated release of HCT from the coating, a higher PS 65 concentration favored phase separation of PPP and PS 65 and led to an accelerated release. The increase in PS 65 reinforced the molecular interaction with the lipophilic HCT, reflected in less crystal growth and decelerated release. The knowledge presented in this study supports understanding the instability of binary emulsifier-lipid coating systems, paving the way for developing robust HMC formulations.
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Affiliation(s)
- Sonja Schertel
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Graz, 8010 Graz, Austria; Hermes Arzneimittel GmbH, Division Hermes Pharma, 82049 Pullach, Germany
| | - Sharareh Salar-Behzadi
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Graz, 8010 Graz, Austria; Research Center for Pharmaceutical Engineering GmbH, 8010 Graz, Austria
| | - Julia Karrer
- Research Center for Pharmaceutical Engineering GmbH, 8010 Graz, Austria
| | - Peter Laggner
- Research Center for Pharmaceutical Engineering GmbH, 8010 Graz, Austria
| | - Andreas Zimmer
- Institute of Pharmaceutical Sciences, Department of Pharmaceutical Technology and Biopharmacy, University of Graz, 8010 Graz, Austria.
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Liquid Lipids Act as Polymorphic Modifiers of Tristearin-Based Formulations Produced by Melting Technologies. Pharmaceutics 2021; 13:pharmaceutics13071089. [PMID: 34371779 PMCID: PMC8308959 DOI: 10.3390/pharmaceutics13071089] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 07/13/2021] [Accepted: 07/14/2021] [Indexed: 11/27/2022] Open
Abstract
Despite the growing interest in lipid-based formulations, their polymorphism is still a challenge in the pharmaceutical industry. Understanding and controlling the polymorphic behavior of lipids is a key element for achieving the quality and preventing stability issues. This study aims to evaluate the impact of different oral-approved liquid lipids (LL) on the polymorphism, phase transitions and structure of solid lipid-based formulations and explore their influence on drug release. The LL investigated were isopropyl myristate, ethyl oleate, oleic acid, medium chain trigycerides, vitamin E acetate, glyceryl monooleate, lecithin and sorbitane monooleate. Spray-congealing was selected as an example of a melting-based solvent-free manufacturing method to produce microparticles (MPs) of tristearin (Dynasan®118). During the production process, tristearin MPs crystallized in the metastable α-form. Stability studied evidenced a slow phase transition to the stable β-polymorph overtime, with the presence of the α-form still detected after 60 days of storage at 25 °C. The addition of 10% w/w of LL promoted the transition of tristearin from the α-form to the stable β-form with a kinetic varying from few minutes to days, depending on the specific LL. The combination of various techniques (DSC, X-ray diffraction analysis, Hot-stage polarized light microscopy, SEM) showed that the addition of LL significantly modified the crystal structure of tristearin-based formulations at different length scales. Both the polymorphic form and the LL addition had a strong influence on the release behavior of a model hydrophilic drug (caffeine). Overall, the addition of LL can be considered an interesting approach to control triglyceride crystallization in the β-form. From the industrial viewpoint, this approach might be advantageous as any polymorphic change will be complete before storage, hence enabling the production of stable lipid formulations.
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Slezáková B, Matzick K, Komersová A, Lochař V, Bartoš M, Mužíková J, Haddouchi S. A New Approach to the Dissolution Tests Management to Obtain Kinetic and Thermodynamic Data: Release of a Model Drug from Glyceryl Behenate Matrix Tablets. EUR J LIPID SCI TECH 2021. [DOI: 10.1002/ejlt.202000235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Barbora Slezáková
- Department of Physical Chemistry, Faculty of Chemical Technology University of Pardubice Studentská 95 Pardubice 532 10 Czech Republic
| | - Kevin Matzick
- Department of Physical Chemistry, Faculty of Chemical Technology University of Pardubice Studentská 95 Pardubice 532 10 Czech Republic
| | - Alena Komersová
- Department of Physical Chemistry, Faculty of Chemical Technology University of Pardubice Studentská 95 Pardubice 532 10 Czech Republic
| | - Václav Lochař
- Department of Physical Chemistry, Faculty of Chemical Technology University of Pardubice Studentská 95 Pardubice 532 10 Czech Republic
| | - Martin Bartoš
- Department of Analytical Chemistry, Faculty of Chemical Technology University of Pardubice Studentská 95 Pardubice 532 10 Czech Republic
| | - Jitka Mužíková
- Department of Pharmaceutical Technology, Faculty of Pharmacy in Hradec Králové Charles University Akademika Heyrovského 1203 Hradec Králové 500 05 Czech Republic
| | - Samir Haddouchi
- SPS Pharma Services 3 Rue Châteaubriand Orléans 45071 France
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Impact of Surface Properties of Core Material on the Stability of Hot Melt-Coated Multiparticulate Systems. Pharmaceutics 2021; 13:pharmaceutics13030366. [PMID: 33802098 PMCID: PMC8001618 DOI: 10.3390/pharmaceutics13030366] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2021] [Revised: 02/27/2021] [Accepted: 03/02/2021] [Indexed: 11/17/2022] Open
Abstract
Hot melt coating (HMC) of an active pharmaceutical ingredient (API) powder with lipid-based excipients is an innovative method for manufacturing patient-convenient dosage forms. However, drug release instability is still its main industrial challenge. The correlation between the unstable pharmaceutical product performance with the solid-state alteration of lipids is currently well-investigated. The remaining problem is the inconsistent release alteration of different APIs coated with the same lipid after storage, such as faster release in some cases and slower release in others. The interaction between API surface and lipid-based coating and its alteration during storage were investigated in this work. The surface properties of five different APIs and the coating composition of tripalmitin and polysorbate 65 were screened via Washburn and pendant drop methods, respectively. Metformin hydrochloride and hydrochlorothiazide particles were each coated with the coating composition. The water sorption alteration of coated particles and the crystal growth of tripalmitin in the coating after storage were measured via tensiometry and X-ray diffraction. The cleavage work necessary to overcome the adhesion of coating composition on the core surface was calculated for each API. The accelerated release of the polar core (metformin) after storage was correlated with a low cleavage work and a distinctive phase separation. In contrast, a decelerated release of the hydrophobic core (hydrochlorothiazide) was favored by the crystal growth of the lipid-based coating. The gained knowledge can be used to design the product stability during the formulation development.
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Thakral S, Kim K. Small-angle scattering for characterization of pharmaceutical materials. Trends Analyt Chem 2021. [DOI: 10.1016/j.trac.2020.116144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Salar-Behzadi S, Karrer J, Demiri V, Barrios B, Corzo C, Meindl C, Lochmann D, Reyer S. Polyglycerol esters of fatty acids as safe and stable matrix forming tableting excipients: A structure-function analysis. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.102019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Khaled A, Abdel-Hamid S, Nasr M, Sammour OA. Fabrication of extended-dissolution divalproex tablets: a green solvent-free granulation technique. Drug Dev Ind Pharm 2020; 46:975-987. [PMID: 32362159 DOI: 10.1080/03639045.2020.1764023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
Objective: Divalproex sodium (DVS) is a challenging drug owing to its hygroscopicity, bitter taste, and short in vivo half-life. This study aims to produce stable taste masked DVS once daily tablets using solvent free hot melt granulation (HMG) process.Methods: A lab scale high shear mixer granulator employing six meltable lipid binders (compritol®888 ATO, beeswax, gelucire®50/13, precirol® ATO5, stearyl alcohol, and geleol®) was used for the preparation of tablets. Quality control tests were performed on granules and tablets, and Box-Behnken's design was adopted to investigate the effect of binder concentration, impeller speed, and granulation time on the drug dissolution. Shelf and accelerated stability evaluation, taste assessment, and in vivo pharmacokinetic study were conducted on the selected batches.Results: Results revealed that DVS tablets were successfully prepared, and that the in vitro dissolution of the drug was inversely proportional to the binder concentration. Beeswax and compritol® tablets showed similar dissolution profiles to the marketed product Depakote® 500 ER tablets (F1 < 15 and F2 > 50). The selected batches showed lower moisture content (<2%) and successfully masked the bitter taste compared to uncoated tablets based on a hydrophilic matrix. The in vivo pharmacokinetic study delineated relative bioavailability values for Beeswax and Compritol® tablets of 95.6% and 118%, respectively, compared to the marketed product.Conclusion: The solvent free HMG process can be employed to formulate 24 h extended dissolution DVS tablets with masked bitter taste and high stability, and comparable or higher bioavailability than the marketed product.
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Affiliation(s)
- Amr Khaled
- Department of Research and Development, Amoun Pharmaceutical Company, Cairo, Egypt
| | - Sameh Abdel-Hamid
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Maha Nasr
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
| | - Omaima A Sammour
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ain Shams University, Cairo, Egypt
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Evolution of the microstructure and the drug release upon annealing the drug loaded lipid-surfactant microspheres. Eur J Pharm Sci 2020; 147:105278. [DOI: 10.1016/j.ejps.2020.105278] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2019] [Revised: 02/09/2020] [Accepted: 02/22/2020] [Indexed: 02/06/2023]
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Xu H, Liu L, Li X, Ma J, Liu R, Wang S. Extended tacrolimus release via the combination of lipid-based solid dispersion and HPMC hydrogel matrix tablets. Asian J Pharm Sci 2018; 14:445-454. [PMID: 32104473 PMCID: PMC7032121 DOI: 10.1016/j.ajps.2018.08.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 07/06/2018] [Accepted: 08/10/2018] [Indexed: 11/18/2022] Open
Abstract
The objective of this study is to evaluate the feasibility of obtaining extended release of tacrolimus by a novel combination of lipid-based solid dispersion and matrix-type extended release tablet techniques. Tacrolimus solid dispersion was prepared using glycerylbehenate (Compritol® ATO888) and Pluronic F127 as the carrier materials with hot-melt method, which was then blended with hydrogel matrix materials, such as HPMC and lactose, the powders were directly compressed into tablets. In vitro drug release tests were carried out to evaluate the performance of the solid dispersions and the tablets. The dissolution rate of tacrolimus was significantly improved by the lipid-based solid dispersion, and the incorporation of HPC into the solid dispersion obviously improved its stability after storage. Extended release tablets loaded with tacrolimus solid dispersion showed prolonged drug release patterns over 24 h, the release patterns of the tablets can be tailored by the compositions of the matrix materials, including the types and content of HPMCs. A modified processing method that directly mixed the melted solid dispersion with HPMC powders improved the uniformity of the solid dispersion inside the tablet matrix and release profile. The release data of the extended release tablet fitted well to the Korsmeyer–Peppas model with n value of 0.85, which suggested diffusion- and erosion-controlled release mechanism. The combination of lipid-based solid dispersion and HPMC hydrogel matrix may find wide applications in the extended release dosage forms of high potent, water-insoluble drugs.
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Affiliation(s)
- Hui Xu
- School of Pharmacy, Shenyang Pharmaceutical University, Benxi 117004, China
| | - Li Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Benxi 117004, China
| | - Xuehui Li
- School of Pharmacy, Shenyang Pharmaceutical University, Benxi 117004, China
| | - Junyuan Ma
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Benxi 117004, China
| | - Rui Liu
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Benxi 117004, China
| | - Shaoning Wang
- School of Pharmaceutical Engineering, Shenyang Pharmaceutical University, Benxi 117004, China
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Ganguly S, Maity PP, Mondal S, Das P, Bhawal P, Dhara S, Das NC. Polysaccharide and poly(methacrylic acid) based biodegradable elastomeric biocompatible semi-IPN hydrogel for controlled drug delivery. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2018; 92:34-51. [PMID: 30184759 DOI: 10.1016/j.msec.2018.06.034] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2017] [Revised: 05/21/2018] [Accepted: 06/14/2018] [Indexed: 01/10/2023]
Abstract
Nanoparticles embedded semi-interpenetrating (semi-IPNs) polymeric hydrogels with enhanced mechanical toughness and biocompatibility could have splendid biomedical acceptance. Here we propose poly(methacrylic acid) grafted polysaccharide based semi-IPNs filled with nanoclay via in situ Michael type reaction associated with covalent crosslinking with N,N-methylenebisacrylamide (MBA). The effect of nanoclay in the semi-IPN hydrogel has been investigated which showed significant improvement of mechanical robustness. Meanwhile, the hydrogels showed reversible ductility up to 70% in response to cyclic loading-unloading cycle which is an obvious phenomenon of rubber-like elasticity. The synthesized semi-IPN hydrogel show biodegradability and non-cytotoxic nature against human cells. The live-dead assay showed that the prepared hydrogel is a viable platform for cell growth without causing severe cell death. The in vitro drug release study in psychological pH (pH = 7.4) reveals that the controlled drug release phenomena can be tuned by simulating the environment pH. Such features in a single hydrogel assembly can propose this as high performance; biodegradable and non-cytotoxic 3D scaffold based promising biomaterial for tissue engineering.
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Affiliation(s)
- Sayan Ganguly
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721301, India
| | - Priti Prasanna Maity
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur 721301, India
| | - Subhadip Mondal
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721301, India
| | - Poushali Das
- School of Nanoscience and Technology, Indian Institute of Technology, Kharagpur 721301, India
| | - Poushali Bhawal
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721301, India
| | - Santanu Dhara
- School of Medical Science and Technology, Indian Institute of Technology, Kharagpur 721301, India
| | - Narayan Ch Das
- Rubber Technology Centre, Indian Institute of Technology, Kharagpur 721301, India.
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McGinity M, Floyd JR, McGinity J, Zhang F. Implant compositions for the unidirectional delivery of drugs to the brain. Drug Dev Ind Pharm 2017; 43:1421-1429. [DOI: 10.1080/03639045.2017.1318904] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Michael McGinity
- Department of Neurosurgery, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - John R. Floyd
- Department of Neurosurgery, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - James McGinity
- College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
| | - Feng Zhang
- College of Pharmacy, The University of Texas at Austin, Austin, TX, USA
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Lopes DG, Koutsamanis I, Becker K, Scheibelhofer O, Laggner P, Haack D, Stehr M, Zimmer A, Salar-Behzadi S. Microphase separation in solid lipid dosage forms as the cause of drug release instability. Int J Pharm 2017; 517:403-412. [DOI: 10.1016/j.ijpharm.2016.12.040] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2016] [Revised: 12/06/2016] [Accepted: 12/17/2016] [Indexed: 11/29/2022]
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Liu L, Li J, Zhao MH, Xu H, Li LS, Wang SN. Loading of tacrolimus containing lipid based drug delivery systems into mesoporous silica for extended release. Asian J Pharm Sci 2016. [DOI: 10.1016/j.ajps.2016.07.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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