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Parekh K, Hariharan K, Qu Z, Rewatkar P, Cao Y, Moniruzzaman M, Pandey P, Popat A, Mehta T. Tacrolimus encapsulated mesoporous silica nanoparticles embedded hydrogel for the treatment of atopic dermatitis. Int J Pharm 2021; 608:121079. [PMID: 34500058 DOI: 10.1016/j.ijpharm.2021.121079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2021] [Revised: 08/22/2021] [Accepted: 09/03/2021] [Indexed: 11/25/2022]
Abstract
Atopic dermatitis (AD) is a repetitive inflammatory skin disorder with limited treatment options. Innovative targeted therapies are gaining significant interest and momentum towards disease control including better ways to deliver drugs topically. Tacrolimus is one such compound which is used to manage moderate to severe AD without causing atrophy which is one of the common side effects of steroids. However, Tacrolimus suffers from poor solubility and retention in the skin when used alone in hydrogel. Therefore, we have prepared Tacrolimus loaded mesoporous silica nanoparticles (TMSNs) to overcome the issues related to its solubility and effective topical delivery. Mesoporous silica nanoparticles (MSNs) were synthesized using sol gel technique and surface functionalized using amino (-NH2+) and phosphonate (-PO3-) groups. Tacrolimus was loaded into MSNs and the particles were characterized for particle size (TEM and DLS), zeta potential (DLS), solubility studies, FTIR, TGA, XRD, BET and cytotoxicity studies. Water solubility of Tacrolimus was increased by 7 folds with phosphonate functionalized MSNs compared to free Tacrolimus. Further the TMSNs were incorporated in to carbopol gel, and the gel formulation was evaluated for various gel characterization tests (pH, spreadability, viscosity), in vitro tests (drug release, permeability studies) and in vivo tests (skin irritation study and efficacy studies) using 1-Fluoro-2,4-dinitrobenzene (DNFB) induced dermatitis in Balb/c mice. Results of in vitro and in vivo study showed that TMSNs loaded gel showed significantly higher amount of Tacrolimus retained (ex vivo - rat skin) and much higher reduction in ear thickness and improved histology (in vivo - in mice). Our data collectively suggest that MSNs incorporated hydrogel as a promising new formulation strategy for topical delivery of poorly soluble drugs.
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Affiliation(s)
- Khushali Parekh
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Sarkhej-Gandhinagar Highway, Ahmedabad - 382481, Gujarat, India
| | - Kartik Hariharan
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Sarkhej-Gandhinagar Highway, Ahmedabad - 382481, Gujarat, India
| | - Zhi Qu
- School of Pharmacy, The University of Brisbane, Queensland 4102, Australia
| | - Prarthana Rewatkar
- School of Pharmacy, The University of Brisbane, Queensland 4102, Australia
| | - Yuxue Cao
- School of Pharmacy, The University of Brisbane, Queensland 4102, Australia
| | - Md Moniruzzaman
- School of Pharmacy, The University of Brisbane, Queensland 4102, Australia; Mater Research Institute - The University of Queensland, Translational Research Institute, Woolloongabba, Qld 4102, Australia
| | - Preeti Pandey
- School of Pharmacy, The University of Brisbane, Queensland 4102, Australia
| | - Amirali Popat
- School of Pharmacy, The University of Brisbane, Queensland 4102, Australia; Mater Research Institute - The University of Queensland, Translational Research Institute, Woolloongabba, Qld 4102, Australia.
| | - Tejal Mehta
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Sarkhej-Gandhinagar Highway, Ahmedabad - 382481, Gujarat, India.
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Tran PHL, Lee BJ, Tran TTD. Fast-Dissolving Solid Dispersions for the Controlled Release of Poorly Watersoluble Drugs. Curr Pharm Des 2021; 27:1498-1506. [PMID: 33087026 DOI: 10.2174/1381612826666201021125844] [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: 05/28/2020] [Revised: 09/09/2020] [Accepted: 09/18/2020] [Indexed: 11/22/2022]
Abstract
Solid dispersions offer many advantages for oral drug delivery of poorly water-soluble drugs over other systems, including an increase in drug solubility and drug dissolution. An improvement in drug absorption and the higher bioavailability of active pharmaceutical ingredients in the gastrointestinal tract have been reported in various studies. In certain circumstances, a rapid pharmacological effect is required for patients. Fastdissolving solid dispersions provide an ideal formulation in such cases. This report will provide an overview of current studies on fast-dissolving solid dispersions, including not only solid dispersion powders with fast dissolution rates but also specific dose form for the controlled release of poorly water-soluble drugs. Specifically, the applications of fast-dissolving solid dispersions will be described in every specific case. Moreover, pharmaceutical approaches and the utilization of polymers will be summarized. The classification and analysis of fastdissolving solid dispersions could provide insight into strategies and potential applications in future drug delivery developments.
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Affiliation(s)
| | - 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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Spray-Dried Amorphous Solid Dispersions of Griseofulvin in HPC/Soluplus/SDS: Elucidating the Multifaceted Impact of SDS as a Minor Component. Pharmaceutics 2020; 12:pharmaceutics12030197. [PMID: 32106495 PMCID: PMC7150901 DOI: 10.3390/pharmaceutics12030197] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Revised: 02/21/2020] [Accepted: 02/22/2020] [Indexed: 02/02/2023] Open
Abstract
This study aimed to elucidate the impact of a common anionic surfactant, sodium dodecyl sulfate (SDS), along with hydroxypropyl cellulose (HPC) and Soluplus (Sol) on the release of griseofulvin (GF), a poorly soluble drug, from amorphous solid dispersions (ASDs). Solutions of 2.5% GF and 2.5%–12.5% HPC/Sol with 0.125% SDS/without SDS were prepared in acetone–water and spray-dried. The solid-state characterization of the ASDs suggests that GF–Sol had better miscibility and stronger interactions than GF–HPC and formed XRPD-amorphous GF, whereas HPC-based ASDs, especially the ones with a lower HPC loading, had crystalline GF. The dissolution tests show that without SDS, ASDs provided limited GF supersaturation (max. 250%) due to poor wettability of Sol-based ASDs and extensive GF recrystallization in HPC-based ASDs (max. 50%). Sol-based ASDs with SDS exhibited a dramatic increase in supersaturation (max. 570%), especially at a higher Sol loading, whereas HPC-based ASDs with SDS did not. SDS did not interfere with Sol’s ability to inhibit GF recrystallization, as confirmed by the precipitation from the supersaturated state and PLM imaging. The favorable use of SDS in a ternary ASD was attributed to both the wettability enhancement and its inability to promote GF recrystallization when used as a minor component along with Sol.
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Madan JR, Patil K, Awasthi R, Dua K. Formulation and evaluation of solid self-microemulsifying drug delivery system for azilsartan medoxomil. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2019.1695206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Jyotsana R. Madan
- Department of Pharmaceutics, Smt. Kashibai Navale College of Pharmacy, Pune, India
| | - Kajal Patil
- Department of Pharmaceutics, Smt. Kashibai Navale College of Pharmacy, Pune, India
| | - Rajendra Awasthi
- Amity Institute of Pharmacy, Amity University Uttar Pradesh, Noida, India
| | - Kamal Dua
- Discipline of Pharmacy, Graduate School of Health, University of Technology Sydney, Ultimo, Australia
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Singh D, Bedi N, Tiwary AK. Enhancing solubility of poorly aqueous soluble drugs: critical appraisal of techniques. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2017. [DOI: 10.1007/s40005-017-0357-1] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cho HJ, Jee JP, Kang JY, Shin DY, Choi HG, Maeng HJ, Cho KH. Cefdinir Solid Dispersion Composed of Hydrophilic Polymers with Enhanced Solubility, Dissolution, and Bioavailability in Rats. Molecules 2017; 22:molecules22020280. [PMID: 28208830 PMCID: PMC6155681 DOI: 10.3390/molecules22020280] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Revised: 02/06/2017] [Accepted: 02/08/2017] [Indexed: 11/16/2022] Open
Abstract
The aim of this work was to develop cefdinir solid dispersions (CSDs) prepared using hydrophilic polymers with enhanced dissolution/solubility and in vivo oral bioavailability. CSDs were prepared with hydrophilic polymers such as hydroxypropyl-methylcellulose (HPMC; CSD1), carboxymethylcellulose-Na (CMC-Na; CSD2), polyvinyl pyrrolidone K30 (PVP K30; CSD3) at the weight ratio of 1:1 (drug:polymer) using a spray-drying method. The prepared CSDs were characterized by aqueous solubility, differential scanning calorimetry (DSC), powder X-ray diffraction (p-XRD), scanning electron microscopy (SEM), aqueous viscosity, and dissolution test in various media. The oral bioavailability of CSDs was also evaluated in rats and compared with cefdinir powder suspension. The cefdinir in CSDs was amorphous form, as confirmed in the DSC and p-XRD measurements. The developed CSDs commonly resulted in about 9.0-fold higher solubility of cefdinir and a significantly improved dissolution profile in water and at pH 1.2, compared with cefdinir crystalline powder. Importantly, the in vivo oral absorption (represented as AUCinf) was markedly increased by 4.30-, 6.77- and 3.01-fold for CSD1, CSD2, and CSD3, respectively, compared with cefdinir suspension in rats. The CSD2 prepared with CMC-Na would provide a promising vehicle to enhance dissolution and bioavailability of cefdinir in vivo.
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Affiliation(s)
- Hyun-Jong Cho
- College of Pharmacy, Kangwon National University, 1 Kangwondaehak-gil, Chuncheon 24341, Korea.
| | - Jun-Pil Jee
- College of Pharmacy, Chosun University, 309 Pilmun-daero, Gwangju 61452, Korea.
| | - Ji-Ye Kang
- College of Pharmacy, Inje University, 197 Inje-ro, Gimhae 50834, Korea.
| | - Dong-Yeop Shin
- School of Pharmacy, Sungkyunkwan University, 300 Cheoncheon-dong, Jangan-gu, Suwon 16419, Korea.
| | - Han-Gon Choi
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Ansan 15588, Korea.
| | - Han-Joo Maeng
- College of Pharmacy, Gachon University, 191 Hambakmoei-ro, Yeonsu-gu, Incheon 21936, Korea.
| | - Kwan Hyung Cho
- College of Pharmacy, Inje University, 197 Inje-ro, Gimhae 50834, Korea.
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Obaidat RM, Tashtoush BM, Awad AA, Al Bustami RT. Using Supercritical Fluid Technology (SFT) in Preparation of Tacrolimus Solid Dispersions. AAPS PharmSciTech 2017; 18:481-493. [PMID: 27116202 DOI: 10.1208/s12249-016-0492-4] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 01/30/2016] [Indexed: 11/30/2022] Open
Abstract
Tacrolimus is an immunosuppressant agent that suffers from poor and variable bioavailability. This can be related to limited solubility and dissolution. The main objective of this study is to use SFT to prepare solid dispersions of tacrolimus in order to enhance its dissolution. SFT was selected since it offers several advantages over conventional techniques such as efficiency and stability. Several solid dispersions of tacrolimus were prepared using SFT to enhance its dissolution. The selected polymers included soluplus, PVP, HPMC, and porous chitosan. TPGS was used as a surfactant additive with chitosan, HPMC, and PVP. Soluplus dispersions were used to study the effect of processing parameters (time, temperature, and pressure) on loading efficiency (LE) and dissolution of the preparation. Physicochemical characterization was performed using DSC, X-ray diffraction, FTIR analysis, SEM, and in vitro drug release. Stability testing was evaluated after 3 months for selected dispersions. Significant improvement for the release profile was achieved for the prepared dispersions. Better release achieved in the soluplus dispersions which reached maximum cumulative release equal to 98.76% after 24 h. Drug precipitated in its amorphous form in all prepared dispersions except those prepared from chitosan. All dispersions were physically stable except for PVP preparations that contained TPGS which started to re-crystallize after one month. Prepared dispersions were proved to be affected by supercritical processing parameters. In conclusion, SFT was successfully used to prepare dispersions of tacrolimus that exhibited higher dissolution than raw drug. Dissolution rate and stability are affected by the type of the polymer.
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Lu T, Sun Y, Ding D, Zhang Q, Fan R, He Z, Wang J. Study on Enhanced Dissolution of Azilsartan-Loaded Solid Dispersion, Prepared by Combining Wet Milling and Spray-Drying Technologies. AAPS PharmSciTech 2017; 18:473-480. [PMID: 27116201 DOI: 10.1208/s12249-016-0531-1] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Accepted: 04/08/2016] [Indexed: 11/30/2022] Open
Abstract
The purpose of this study was to develop a combination method of wet milling and spray-drying technologies to prepare the solid dispersion and improve the dissolution rate of poorly water-soluble drug candidates. Azilsartan (AZL) was selected as the model drug for its poor water solubility. In the study, AZL-loaded solid dispersion was prepared with polyethylene glycol 6000 (PEG6000) and hydroxypropyl cellulose with super low viscosity (HPC-SL) as stabilizers by using combination of wet grinding and spray-drying methods. The high AZL loading solid dispersion was then characterized by scanning electron microscopy (SEM), differential scanning calorimetry (DSC), powder X-ray diffraction (PXRD), and Fourier transform infrared spectroscopy (FTIR). Besides, dissolution test was carried out by the paddle method and stability investigation was also conducted. As a result, the dissolution rate of the solid dispersion tablets was found to be greater than conventional tablets, but in close agreement with market tablets. Furthermore, the formulation was shown to be stable at 40 ± 2°C and 75 ± 5% for at least 6 months, owing to its decreased particle size, morphology, and its crystal form. It was concluded that the combination of wet milling and spray-drying approaches to prepare solid dispersion would be a prospective method to improve the dissolution rate of poorly water-soluble drugs.
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Luciani-Giacobbe LC, Ramírez-Rigo MV, Garro-Linck Y, Monti GA, Manzo RH, Olivera ME. Very fast dissolving acid carboxymethylcellulose-rifampicin matrix: Development and solid-state characterization. Eur J Pharm Sci 2017; 96:398-410. [DOI: 10.1016/j.ejps.2016.10.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2016] [Revised: 09/23/2016] [Accepted: 10/05/2016] [Indexed: 11/25/2022]
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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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Trasi NS, Purohit HS, Wen H, Sun DD, Taylor LS. Non-Sink Dissolution Behavior and Solubility Limit of Commercial Tacrolimus Amorphous Formulations. J Pharm Sci 2016; 106:264-272. [PMID: 27816263 DOI: 10.1016/j.xphs.2016.09.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Revised: 08/31/2016] [Accepted: 09/16/2016] [Indexed: 11/16/2022]
Abstract
An increasing number of drugs with low aqueous solubility are being formulated and marketed as amorphous solid dispersions because the amorphous form can generate a higher solubility compared to the crystalline solid. The amorphous solubility of a drug can be determined experimentally using various techniques. Most studies in this area investigate the drug in its pure form and do not evaluate any effects from other formulation ingredients. In this study, we use 6 marketed amorphous oral drug products, capsules containing 5 mg of tacrolimus, and various excipients, consisting of 1 innovator product and 5 generics. The amorphous solubility of tacrolimus was evaluated using different techniques and was compared to the crystalline solubility of the drug. Dissolution of the different products was conducted under non-sink conditions to compare the maximum achieved concentration with the amorphous solubility. Diffusion studies were performed to elucidate the maximum flux across a membrane and to evaluate whether there was any difference in the thermodynamic activity of the drug released from the formulation and the pure drug. The amorphous solubility of tacrolimus was found to be a factor of 35 higher than the crystalline solubility. The maximum concentration obtained after dissolution of the capsule contents in non-sink conditions was found to match the experimentally determined amorphous solubility of the pure drug. Furthermore, the membrane flux of tacrolimus following dissolution of the various formulations was found to be similar and maximized. This study demonstrates a link between key physicochemical properties (amorphous solubility) and in vitro formulation performance.
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Affiliation(s)
- Niraj S Trasi
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907
| | - Hitesh S Purohit
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907
| | - Hong Wen
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland 20993
| | - Dajun D Sun
- Office of Research and Standards, Office of Generic Drugs, Center for Drug Evaluation and Research, U.S. Food and Drug Administration, 10903 New Hampshire Avenue, Silver Spring, Maryland 20993
| | - Lynne S Taylor
- Department of Industrial and Physical Pharmacy, College of Pharmacy, Purdue University, West Lafayette, Indiana 47907.
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Development of novel prasugrel base microsphere-loaded tablet with enhanced stability: Physicochemical characterization and in vivo evaluation in beagle dogs. Colloids Surf B Biointerfaces 2016; 146:754-61. [DOI: 10.1016/j.colsurfb.2016.07.025] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Revised: 07/07/2016] [Accepted: 07/11/2016] [Indexed: 11/20/2022]
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Singh A, Van den Mooter G. Spray drying formulation of amorphous solid dispersions. Adv Drug Deliv Rev 2016; 100:27-50. [PMID: 26705850 DOI: 10.1016/j.addr.2015.12.010] [Citation(s) in RCA: 278] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 12/06/2015] [Accepted: 12/09/2015] [Indexed: 02/01/2023]
Abstract
Spray drying is a well-established manufacturing technique which can be used to formulate amorphous solid dispersions (ASDs) which is an effective strategy to deliver poorly water soluble drugs (PWSDs). However, the inherently complex nature of the spray drying process coupled with specific characteristics of ASDs makes it an interesting area to explore. Numerous diverse factors interact in an inter-dependent manner to determine the final product properties. This review discusses the basic background of ASDs, various formulation and process variables influencing the critical quality attributes (CQAs) of the ASDs and aspects of downstream processing. Also various aspects of spray drying such as instrumentation, thermodynamics, drying kinetics, particle formation process and scale-up challenges are included. Recent advances in the spray-based drying techniques are mentioned along with some future avenues where major research thrust is needed.
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Tsunashima D, Yamashita K, Ogawara KI, Sako K, Higaki K. Preparation of extended release solid dispersion formulations of tacrolimus using ethylcellulose and hydroxypropylmethylcellulose by solvent evaporation method. J Pharm Pharmacol 2016; 68:316-23. [DOI: 10.1111/jphp.12515] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2015] [Accepted: 12/13/2015] [Indexed: 11/27/2022]
Abstract
Abstract
Objectives
Tacrolimus is a poorly water-soluble compound that is used to prevent allograft rejection. We aimed to prepare an extended release formulation of tacrolimus to achieve both an extended release profile and improved solubility of tacrolimus.
Methods
Extended release granules (ERG) of tacrolimus were prepared with lactose, ethylcellulose (EC) and hydroxypropylmethylcellulose (HPMC) via the solvent evaporation method.
Key findings
In an in vitro release study, ERG had an extended release profile, and the release rate of tacrolimus was regulated by the quantity of lactose, EC and HPMC in the formulation. HPMC-containing ERG successfully enhanced and maintained supersaturation of tacrolimus even after 24 h in a supersaturated release study. In contrast, the extent of supersaturation rapidly decreased after 4 h and the concentration nearly reached the same level as that of crystalline tacrolimus at 24 h for ERG without HPMC. In vivo absorption characteristics were compared between ERGs and immediate release (IR) formulation of tacrolimus. Successful and sustained absorption of tacrolimus without reducing bioavailability compared with IR formulation was observed for ERG.
Conclusions
These results suggest the feasibility of combining an EC-based formulation with solid dispersion utilizing HPMC for the extended release of oral formulations and sustained absorption of tacrolimus.
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Affiliation(s)
- Daisuke Tsunashima
- Pharmaceutical Research and Technology Labs., Astellas Pharma Inc., Yaizu, Shizuoka, Japan
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, Kita-ku, Japan
| | - Kazunari Yamashita
- Pharmaceutical Research and Technology Labs., Astellas Pharma Inc., Yaizu, Shizuoka, Japan
| | - Ken-ichi Ogawara
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, Kita-ku, Japan
| | | | - Kazutaka Higaki
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, Okayama University, Kita-ku, Japan
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Park JS, Cho HR, Kang MJ, Choi YS. A rapid and sensitive method to determine tacrolimus in rat whole blood using liquid–liquid extraction with mild temperature ultrasonication and LC–MS/MS. Arch Pharm Res 2015; 39:73-82. [DOI: 10.1007/s12272-015-0681-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 11/12/2015] [Indexed: 10/22/2022]
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Preparation and characterization of solid dispersion using a novel amphiphilic copolymer to enhance dissolution and oral bioavailability of sorafenib. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2015.04.044] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Rashid R, Kim DW, Yousaf AM, Mustapha O, Fakhar Ud Din, Park JH, Yong CS, Oh YK, Youn YS, Kim JO, Choi HG. Comparative study on solid self-nanoemulsifying drug delivery and solid dispersion system for enhanced solubility and bioavailability of ezetimibe. Int J Nanomedicine 2015; 10:6147-59. [PMID: 26491288 PMCID: PMC4598224 DOI: 10.2147/ijn.s91216] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background The objective of this study was to compare the physicochemical characteristics, solubility, dissolution, and oral bioavailability of an ezetimibe-loaded solid self-nanoemulsifying drug delivery system (SNEDDS), surface modified solid dispersion (SMSD), and solvent evaporated solid dispersion (SESD) to identify the best drug delivery system with the highest oral bioavailability. Methods For the liquid SNEDDS formulation, Capryol 90, Cremophor EL, and Tween 80 were selected as the oil, surfactant, and cosurfactant, respectively. The nanoemulsion-forming region was sketched using a pseudoternary phase diagram on the basis of reduced emulsion size. The optimized liquid SNEDDS was converted to solid SNEDDS by spray drying with silicon dioxide. Furthermore, SMSDs were prepared using the spray drying technique with various amounts of hydroxypropylcellulose and Tween 80, optimized on the basis of their drug solubility. The SESD formulation was prepared with the same composition of optimized SMSD. The aqueous solubility, dissolution, physicochemical properties, and pharmacokinetics of all of the formulations were investigated and compared with the drug powder. Results The drug existed in the crystalline form in SMSD, but was changed into an amorphous form in SNEDDS and SESD, giving particle sizes of approximately 24, 6, and 11 µm, respectively. All of these formulations significantly improved the aqueous solubility and dissolution in the order of solid SNEDDS ≥ SESD > SMSD, and showed a total higher plasma concentration than did the drug powder. Moreover, SESD gave a higher area under the drug concentration time curve from zero to infinity than did SNEDDS and SMSD, even if they were not significantly different, suggesting more improved oral bioavailability. Conclusion Among the various formulations tested in this study, the SESD system would be strongly recommended as a drug delivery system for the oral administration of ezetimibe with poor water solubility.
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Affiliation(s)
- Rehmana Rashid
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, South Korea
| | - Dong Wuk Kim
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, South Korea
| | - Abid Mehmood Yousaf
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, South Korea
| | - Omer Mustapha
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, South Korea
| | - Fakhar Ud Din
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, South Korea
| | - Jong Hyuck Park
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, South Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, Gyeongsan, South Korea
| | - Yu-Kyoung Oh
- College of Pharmacy, Seoul National University, Seoul, South Korea
| | - Yu Seok Youn
- School of Pharmacy, Sungkyunkwan University, Suwon, South Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, Gyeongsan, South Korea
| | - Han-Gon Choi
- College of Pharmacy and Institute of Pharmaceutical Science and Technology, Hanyang University, Ansan, South Korea
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Seo YG, Kim DW, Yousaf AM, Park JH, Chang PS, Baek HH, Lim SJ, Kim JO, Yong CS, Choi HG. Solid self-nanoemulsifying drug delivery system (SNEDDS) for enhanced oral bioavailability of poorly water-soluble tacrolimus: physicochemical characterisation and pharmacokinetics. J Microencapsul 2015; 32:503-10. [PMID: 26079598 DOI: 10.3109/02652048.2015.1057252] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
To develop a novel self-nanoemulsifying drug delivery system (solid SNEDDS) with better oral bioavailability of tacrolimus, the solid SNEDDS was obtained by spray-drying the solutions containing the liquid SNEDDS and colloidal silica. Its reconstitution properties were determined and correlated to solid state characterisation of the powder. Moreover, the dissolution and pharmacokinetics in rats was done in comparison to the commercial product. Among the liquid SNEDDS formulations tested, the liquid SNEDDS comprised of Capryol PGMC, Transcutol HP and Labrasol (10:15:75, v/v/v) presented the highest dissolution rate. In the solid SNEDDS, this liquid SNEDDS was absorbed in the pores and attached onto the surface of the colloidal silica. Drug was present in the amorphous state in it. The solid SNEDDS with 5% w/v tacrolimus produced the nanoemulsions and improved the oral bioavailability of tacrolimus in rats. Therefore, this solid SNEDDS would be a potential candidate for enhancing the oral bioavailability of tacrolimus.
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Affiliation(s)
- Youn Gee Seo
- College of Pharmacy, Yeungnam University , Gyongsan , South Korea
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Kim YH, Kim DW, Kwon MS, Cho KH, Kim JO, Yong CS, Choi HG. Clopidogrel Napadisilate Monohydrate Loaded Surface-Modified Solid Dispersion: Physicochemical Characterization and in Vivo Evaluation. Biol Pharm Bull 2015; 38:1033-40. [DOI: 10.1248/bpb.b15-00113] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Young Hun Kim
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University
| | - Dong Wuk Kim
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University
| | - Min Seok Kwon
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University
| | - Kwan Hyung Cho
- College of Pharmacy, Inje University
- College of Pharmacy, Yeungnam University
| | | | | | - Han-Gon Choi
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University
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Kim DW, Kwon MS, Yousaf AM, Balakrishnan P, Park JH, Kim DS, Lee BJ, Park YJ, Yong CS, Kim JO, Choi HG. Comparison of a solid SMEDDS and solid dispersion for enhanced stability and bioavailability of clopidogrel napadisilate. Carbohydr Polym 2014; 114:365-374. [PMID: 25263903 DOI: 10.1016/j.carbpol.2014.08.034] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 07/29/2014] [Accepted: 08/06/2014] [Indexed: 12/13/2022]
Abstract
The intention of this study was to compare the physicochemical properties, stability and bioavailability of a clopidogrel napadisilate (CN)-loaded solid dispersion (SD) and solid self-microemulsifying drug delivery system (solid SMEDDS). SD was prepared by a surface attached method using different ratios of Cremophor RH60 (surfactant) and HPMC (polymer), optimized based on their drug solubility. Liquid SMEDDS was composed of oil (peceol), a surfactant (Cremophor RH60) and a co-surfactant (Transcutol HP). A pseudo-ternary phase diagram was constructed to identify the emulsifying domain, and the optimized liquid SMEDDS was spray dried with an inert solid carrier (silicon dioxide), producing the solid SMEDDS. The physicochemical properties, solubility, dissolution, stability and pharmacokinetics were assessed and compared to clopidogrel napadisilate (CN) and bisulfate (CB) powders. In solid SMEDDS, liquid SMEDDS was absorbed or coated inside the pores of silicon dioxide. In SD, hydrophilic polymer and surfactants were adhered onto drug surface. The drug was in crystalline and molecularly dispersed form in SD and solid SMEDDS, respectively. Solid SMEDDS and SD greatly increased the solubility of CN but gave lower drug solubility compared to CB powder. These preparations significantly improved the dissolution of CN, but the latter more increased than the former. Stability under accelerated condition showed that they were more stable compared to CB powder, and SD was more stable than solid SMEDDS. They significantly increased the oral bioavailability of CN powder. Furthermore, SD showed significantly improved oral bioavailability compared to solid SMEDDS and CB powder. Thus, SD with excellent stability and bioavailability is recommended as an alternative for the clopidogrel-based oral formulation.
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Affiliation(s)
- Dong Wuk Kim
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Min Seok Kwon
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Abid Mehmood Yousaf
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Prabagar Balakrishnan
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Jong Hyuck Park
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Dong Shik Kim
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Beom-Jin Lee
- College of Pharmacy, Ajou University, 206, Worldcup-ro, Yeongtong-gu, Suwon 443-749, South Korea
| | - Young Joon Park
- College of Pharmacy, Ajou University, 206, Worldcup-ro, Yeongtong-gu, Suwon 443-749, South Korea
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea.
| | - Han-Gon Choi
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55, Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea.
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21
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Preparation and pharmaceutical evaluation of new tacrolimus-loaded solid self-emulsifying drug delivery system. Arch Pharm Res 2014; 38:223-8. [DOI: 10.1007/s12272-014-0459-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2014] [Accepted: 07/18/2014] [Indexed: 10/24/2022]
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22
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Cho JH, Kim YI, Kim DW, Yousaf AM, Kim JO, Woo JS, Yong CS, Choi HG. Development of novel fast-dissolving tacrolimus solid dispersion-loaded prolonged release tablet. Eur J Pharm Sci 2014; 54:1-7. [PMID: 24388864 DOI: 10.1016/j.ejps.2013.12.016] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2013] [Revised: 11/28/2013] [Accepted: 12/24/2013] [Indexed: 11/29/2022]
Abstract
The goal of this research was to develop a novel prolonged release tablet bioequivalent to the commercial sustained release capsule. A number of tacrolimus-loaded fast-dissolving solid dispersions containing various amounts of DOSS were prepared using the spray drying technique. Their solubility, dissolution and pharmacokinetics in rats were studied. DOSS increased drug solubility and dissolution in the solid dispersions. Compared with the drug powder, the solubility, dissolution and bioavailability of tacrolimus with the fast-dissolving solid dispersion containing tacrolimus/HP-β-CD/DOSS in the weight ratio of 5:40:4 were boosted by approximately 700-, 30- and 2-fold, respectively. Several tablet formulations were accomplished with this solid dispersion in combination with various ratios of HPMC/ethylcellulose. The release behaviour and pharmacokinetic studies in beagle dogs were assessed compared with the commercial prolonged release capsule. A decrease in HPMC/ethylcellulose ratios reduced the dissolution of tacrolimus from the tablets. Particularly, the tacrolimus-loaded prolonged release tablet consisting of fast-dissolving tacrolimus solid dispersion, HPMC, ethylcellulose and talc at the weight ratio of 20:66:112:2 exhibited a dissolution profile similar to that produced by the commercial prolonged release capsule. Furthermore, there were no significant differences in the AUC, Cmax, Tmax and MRT values between them in beagle dogs. Consequently, this tacrolimus-loaded prolonged release tablet might be bioequivalent to the tacrolimus-loaded commercial capsule.
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Affiliation(s)
- Jung Hyun Cho
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea
| | - Yong-Il Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea; Pharmaceutical Research Centre, Hanmi Pharm. Co., Paltan-myeon, 893-5, Hwaseong, Gyeonggi-Do 445-913, South Korea
| | - Dong-Wuk Kim
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Abid Mehmood Yousaf
- College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea
| | - Jong Oh Kim
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea
| | - Jong Soo Woo
- Pharmaceutical Research Centre, Hanmi Pharm. Co., Paltan-myeon, 893-5, Hwaseong, Gyeonggi-Do 445-913, South Korea.
| | - Chul Soon Yong
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea.
| | - Han-Gon Choi
- College of Pharmacy, Yeungnam University, 214-1, Dae-Dong, Gyongsan 712-749, South Korea; College of Pharmacy & Institute of Pharmaceutical Science and Technology, Hanyang University, 55 Hanyangdaehak-ro, Sangnok-gu, Ansan 426-791, South Korea.
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Choi JH, Lee K, Hong S, Lee SK, Oh YK, Choi SK, Choi HG. Effect of biocompatible polymers on the physicochemical and dissolution properties of fenofibrate in nanoparticle system. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2013. [DOI: 10.1007/s40005-013-0100-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Koh PT, Chuah JN, Talekar M, Gorajana A, Garg S. Formulation development and dissolution rate enhancement of efavirenz by solid dispersion systems. Indian J Pharm Sci 2013; 75:291-301. [PMID: 24082345 PMCID: PMC3783747 DOI: 10.4103/0250-474x.117434] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2012] [Revised: 03/05/2013] [Accepted: 03/17/2013] [Indexed: 11/22/2022] Open
Abstract
The aim of this study was to enhance the dissolution rate of efavirenz using solid dispersion systems (binary and ternary). A comparison between solvent and fusion method was also investigated. Solid dispersions of efavirenz were prepared using polyethylene glycol 8000, polyvinylpyrrolidone K30 alone and combination of both. Tween 80 was incorporated to obtain a ternary solid dispersion system. Dissolution tests were conducted and evaluated on the basis of cumulative percentage drug release and dissolution efficiency. Physicochemical characterizations of the solid dispersions were carried out using differential scanning calorimetric, powder X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electron microscopy. Dissolution was remarkably improved in both systems compared to pure efavirenz (P<0.05). An optimum ratio was identified at a drug:polymer of 1:10. Incorporation of Tween 80 to 1:10 formulations formed using solvent method showed further improvement in the dissolution rate. Physicochemical characterization results suggested that efavirenz existed in the amorphous form in all the solid dispersion systems providing evidence of improvement in dissolution. No statistically significant difference (P>0.05) in dissolution was observed between the two methods. Binary and ternary solid dispersion systems both have showed a significant improvement in the dissolution rate of efavirenz. Formulations with only polyvinylpyrrolidone K30 showed best dissolution profile and 1:10 was identified as an optimum drug-polymer weight ratio.
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Affiliation(s)
- P T Koh
- School of Pharmacy and Health Sciences, International Medical University, Bukit Jalil, 57000, Kuala Lumpur, Malaysia
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Paudel A, Worku ZA, Meeus J, Guns S, Van den Mooter G. Manufacturing of solid dispersions of poorly water soluble drugs by spray drying: Formulation and process considerations. Int J Pharm 2013; 453:253-84. [DOI: 10.1016/j.ijpharm.2012.07.015] [Citation(s) in RCA: 330] [Impact Index Per Article: 30.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Revised: 07/04/2012] [Accepted: 07/10/2012] [Indexed: 12/24/2022]
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Böer TM, Procópio JVV, Nascimento TGD, Macêdo RO. Correlation of thermal analysis and pyrolysis coupled to GC-MS in the characterization of tacrolimus. J Pharm Biomed Anal 2013; 73:18-23. [PMID: 22361660 DOI: 10.1016/j.jpba.2012.01.040] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2011] [Revised: 01/28/2012] [Accepted: 01/30/2012] [Indexed: 11/18/2022]
Abstract
In recent years, thermal analysis has assumed major role in the pharmaceutical industry because it can be used to evaluate the stability both in the control of raw materials and the finished product, having employment potential in the development and characterization of new products and assessment processes. Tacrolimus (TCR) is a macrolide lactone with potent immunosuppressive activity. The purpose of this study was to characterize tacrolimus raw material using Thermal analysis and Pyrolysis coupled to Gas chromatography-Mass spectrometry (Pyr-GC-MS). It was analyzed four samples of tacrolimus named TCR A, B, C and D. Thermal analysis experiments was performed in Shimadzu equipment, under nitrogen and synthetic air atmosphere in different heating rate. Pyrolysis analysis was conducted in isothermal conditions of 300°C and 400°C coupled to GC-MS, in which the mass spectrometer was operated in scan mode to detect ions in the range of mass of m/z 25-900. The thermal studies by DSC, DTA and DSC-Photovisual showed desolvation process for all tacrolimus raw materials and TG-dynamical demonstrated two pseudo-polymorphic forms (monohydrate and sesquihydrate) of tacrolimus. It was observed good correlation between the stoichiometric mass losses of the TG-dynamical and identification of product ion in Pyr-GC/MS technique. It was possible to correlate the five pyrolytic product ions with the Ozawa kinetic analysis from the thermal decomposition of TG-dynamical. The thermal studies (DSC, DSC-Photovisual, DTA and TG-dynamical) were applied in the thermal characterization of the raw materials of tacrolimus which showed pseudo-polymorphic forms, which must be monitored by pharmaceutical industry, avoiding future problems in pharmaceutical process, chemical stability and bioavailability of the tacrolimus product.
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Affiliation(s)
- Tania Maria Böer
- Department of Pharmaceutical Sciences, Postgraduate Program in Pharmaceutical Sciences, Federal University of Pernambuco, University City, Artur de Sá Avenue, Recife, PE 50740-521, Brazil.
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Thapa RK, Baskaran R, Madheswaran T, Kim JO, Yong CS, Yoo BK. Preparation, Characterization, and Release Study of Tacrolimus-Loaded Liquid Crystalline Nanoparticles. J DISPER SCI TECHNOL 2013. [DOI: 10.1080/01932691.2011.648462] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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28
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Ha JM, Kang SY, Park CW, Bin SA, Rhee YS, Seo JW, Kim SH, Chi SC, Park ES. Effect of poloxamer on physicochemical properties of tacrolimus solid dispersion improving water solubility and dissolution rate. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2012. [DOI: 10.1007/s40005-012-0025-4] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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29
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In vitro release and skin permeation of tacrolimus from monoolein-based liquid crystalline nanoparticles. J Drug Deliv Sci Technol 2012. [DOI: 10.1016/s1773-2247(12)50084-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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30
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Yu M, Sun L, Li W, Lan Z, Li B, Tan L, Li M, Yang X. Investigation of structure and dissolution properties of a solid dispersion of lansoprazole in polyvinylpyrrolidone. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.08.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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31
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Srinarong P, Pham BT, Holen M, van der Plas A, Schellekens RCA, Hinrichs WLJ, Frijlink HW. Preparation and physicochemical evaluation of a new tacrolimus tablet formulation for sublingual administration. Drug Dev Ind Pharm 2011; 38:490-500. [PMID: 21961909 DOI: 10.3109/03639045.2011.613075] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of this study was to develop a new fast-disintegrating tablet formulation containing 1 mg tacrolimus for sublingual application. First, solid dispersions containing tacrolimus (2.5%, 5% and 10% w/w) incorporated in Ac-Di-Sol(®) and carriers (inulin 1.8 kDa and 4 kDa, and polyvinylpyrrolidone (PVP) K30) were prepared by freeze drying. Subsequently, a tablet formulation composed of a mixture of the solid dispersions, Ac-Di-Sol(®), mannitol, Avicel(®) PH-101 and sodium stearyl fumarate was optimized concerning drug load in the solid dispersions and the type of carrier. Tablet weight was kept constant at 75 mg by adjusting the amount of Avicel(®) PH-101. Differential scanning calorimetry (DSC) and X-ray powder diffraction (XRPD) results indicated the absence of the drug in the crystalline state, which was confirmed by the scanning electron microscopy (SEM). These results suggest that tacrolimus incorporated in all of the solid dispersions was fully amorphous. Dissolution of the tablets containing solid dispersions with a low drug load highly depends on the type of carrier and increased in the order: PVP K30 < inulin 4 kDa < inulin 1.8 kDa. Solid dispersions with a drug load of 10% w/w incorporated in the carriers yielded optimal formulations. In addition, the physicochemical characteristics and the dissolution behavior of the tablet formulation containing inulin 1.8 kDa-based solid dispersions with a drug load of 10% w/w did not change after storage at 20°C/45%RH for 6 months indicating excellent storage stability.
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Affiliation(s)
- Parinda Srinarong
- Department of Pharmaceutical Technology and Biopharmacy, University of Groningen, Groningen, The Netherlands.
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Biagiotti S, Rossi L, Bianchi M, Giacomini E, Pierigè F, Serafini G, Conaldi PG, Magnani M. Immunophilin-loaded erythrocytes as a new delivery strategy for immunosuppressive drugs. J Control Release 2011; 154:306-13. [DOI: 10.1016/j.jconrel.2011.05.024] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2011] [Revised: 05/16/2011] [Accepted: 05/20/2011] [Indexed: 11/15/2022]
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33
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Pople PV, Singh KK. Targeting tacrolimus to deeper layers of skin with improved safety for treatment of atopic dermatitis. Int J Pharm 2010; 398:165-78. [DOI: 10.1016/j.ijpharm.2010.07.008] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Revised: 07/05/2010] [Accepted: 07/07/2010] [Indexed: 10/19/2022]
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34
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Effect of the solid-dispersion method on the solubility and crystalline property of tacrolimus. Int J Pharm 2010; 395:161-6. [DOI: 10.1016/j.ijpharm.2010.05.023] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 05/13/2010] [Accepted: 05/18/2010] [Indexed: 11/21/2022]
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35
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Jeong SH, Youn YS, Shin BS, Park ES. Drug Polymorphism and its Importance on Drug Development Process. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2010. [DOI: 10.4333/kps.2010.40.s.009] [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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36
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Park YJ, Oh DH, Yan YD, Seo YG, Lee SN, Choi HG, Yong CS. Surface-attached Solid Dispersion. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2010. [DOI: 10.4333/kps.2010.40.s.097] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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