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Thio DR, Heng PWS, Chan LW. MUPS Tableting-Comparison between Crospovidone and Microcrystalline Cellulose Core Pellets. Pharmaceutics 2022; 14:pharmaceutics14122812. [PMID: 36559308 PMCID: PMC9785026 DOI: 10.3390/pharmaceutics14122812] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Revised: 12/13/2022] [Accepted: 12/14/2022] [Indexed: 12/23/2022] Open
Abstract
Multi-unit pellet system (MUPS) tablets were fabricated by compacting drug-loaded pellets of either crospovidone or microcrystalline cellulose core. These pellets were produced by extrusion-spheronization and coated with ethylcellulose (EC) for a sustained drug release function. Coat damage due to the MUPS tableting process could undermine the sustained release function of the EC-coated pellets. Deformability of the pellet core is a factor that can impact the extent of pellet coat damage. Thus, this study was designed to evaluate the relative performance of drug-loaded pellets prepared with either microcrystalline cellulose (MCC) or crospovidone (XPVP) as a spheronization aid and were comparatively evaluated for their ability to withstand EC pellet coat damage when compacted. These pellets were tableted at various compaction pressures and pellet volume fractions. The extent of pellet coat damage was assessed by the change in drug release after compaction. The findings from this study demonstrated that pellets spheronized with XPVP had slightly less favorable physical properties and experienced comparatively more pellet coat damage than the pellets with MCC. However, MUPS tablets of reasonable quality could successfully be produced from pellets with XPVP, albeit their performance did not match that of vastly mechanically stronger pellets with MCC at higher compaction pressure.
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Zong S, Liu Y, Park HJ, Ye M, Li J. Curcumin solid dispersion based on three model acrylic polymers: formulation and release properties. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e18946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- Shuai Zong
- Hefei University of Technology, PR China; Yangzhou University, PR China
| | - Yuting Liu
- Hefei University of Technology, PR China
| | | | - Ming Ye
- Hefei University of Technology, PR China
| | - Jinglei Li
- Hefei University of Technology, PR China
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Chaudhary N, Tripathi D, Rai AK. A Technical Approach of Solubility Enhancement of Poorly Soluble Drugs: Liquisolid Technique. Curr Drug Deliv 2021; 17:638-650. [PMID: 32416691 DOI: 10.2174/1567201817666200516155733] [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: 09/29/2019] [Revised: 02/14/2020] [Accepted: 03/14/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Solubility is one of the significant pre-formulation properties which regulate the desired concentration of drug in the systemic circulation. Most of the newly discovered chemical entities show poor solubility which consequently leads to poor bioavailability. To enhance the bioavailability of such type of drugs is a big challenge for pharmaceutical scientists. Liquisolid technology is a new and advanced technology used to transform the liquid medication into dry, free-flowing and easily compressible dosage form incorporation with the carrier and coating material. OBJECTIVES This review represents the technical perspective of Liquisolid technologies that overcome the demerits of classic formulation strategies and amend the bioavailability of the poorly soluble drug. This technique is also approaches the stability, hygroscopicity and agglomeration issue which are mainly occurring in other techniques for solubility enhancement. CONCLUSION Several technologies have been utilized to minimize the solubility problem but due to the complicated and expensive machinery fails to achieve the desired bioavailability of the poorly soluble drugs. Therefore, Liquisolid technology has been introduced as an innovative and promising technique that recovers the demerits of classic formulation strategies and also improves the bioavailability of the poorly soluble drug. This article exhibits the technical approach of the liquisolid system by improving the solubility as well as bioavailability of water-insoluble drugs.
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Affiliation(s)
- Nandini Chaudhary
- Department of Pharmacy, Pranveer Singh Institute of Technology, Kanpur, India
| | - Devika Tripathi
- Department of Pharmacy, Pranveer Singh Institute of Technology, Kanpur, India
| | - Awani K Rai
- Department of Pharmacy, Pranveer Singh Institute of Technology, Kanpur, India
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Kaffash E, Abbaspour M, Afrasiabi Garekani H, Jahanian Z, Saremnejad F, Akhgari A. The Effect of Thermal-Treating on Drug Release from Sustained Release Alginate-Eudragit RS Matrices. Adv Pharm Bull 2021; 11:318-326. [PMID: 33880354 PMCID: PMC8046385 DOI: 10.34172/apb.2021.027] [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: 02/04/2020] [Revised: 03/24/2020] [Accepted: 04/19/2020] [Indexed: 12/31/2022] Open
Abstract
Purpose: The main objective of the present study was to develop the colonic delivery system for 5-aminosalicylic acid (5-ASA) as an anti-inflammatory drug. Methods: Matrix pellets containing various proportions of alginate, calcium and Eudragit® RS were prepared by extrusion-spheronization technique. Thermal treatment was used to investigate the effect of the curing process on the surface morphology, mechanical and physicochemical properties and in vitro drug release profile of pellets. Based on the obtained results optimal formulations were selected to coating by the Eudragit® RS and subjected to a subsequent continuous dissolution test. Results: Image analysis and also scanning electron microscopy results proved acceptable morphology of the pellets. The fourier transform infrared spectroscopy and differential scanning calorimetry studies ruled out any interactions between the formulation’s components. Curing process did not alter the mechanical properties of pellets. The release rate of the drug from matrices was prolonged due to the decreased porosity of cured pellets. Furthermore, selected cured pellets which coated with Eudragit® RS, prevented undesired premature drug release. Conclusion: Formulation containing 17.5% calcium, 17.5% alginate, and a coating level of 10% demonstrated enhanced drug release so that provided resistance to acidic conditions, allowing complete drug release in alkaline pH, mimicking colonic environment. The slow and consistent drug release from this formulation could be used for treatment of a broader range of Inflammatory bowel disease (IBD) patients especially in whom colonic pH levels have been measured at lower than pH 7.0.
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Affiliation(s)
- Ehsan Kaffash
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Student Research Committee, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammadreza Abbaspour
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Hadi Afrasiabi Garekani
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Zohreh Jahanian
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Farinaz Saremnejad
- Department of Food Science and Technology, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Abbas Akhgari
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran.,Targeted Drug Delivery Research Center, Pharmaceutical Technology Institute, Mashhad University of Medical Sciences, Mashhad, Iran
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Qazi F, Shoaib MH, Yousuf RI, Siddiqui F, Nasiri MI, Ahmed K, Muhammad IN, Ahmed FR. QbD based Eudragit coated Meclizine HCl immediate and extended release multiparticulates: formulation, characterization and pharmacokinetic evaluation using HPLC-Fluorescence detection method. Sci Rep 2020; 10:14765. [PMID: 32913337 PMCID: PMC7484796 DOI: 10.1038/s41598-020-71751-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Accepted: 07/23/2020] [Indexed: 11/09/2022] Open
Abstract
This study is based on the QbD development of extended-release (ER) extruded-spheronized pellets of Meclizine HCl and its comparative pharmacokinetic evaluation with immediate-release (IR) pellets. HPLC-fluorescence method was developed and validated for plasma drug analysis. IR drug cores were prepared from lactose, MCC, and PVP using water as granulating fluid. Three-level, three-factor CCRD was applied for modeling and optimization to study the influence of Eudragit (RL100-RS100), TEC, and talc on drug release and sphericity of coated pellets. HPLC-fluorescence method was sensitive with LLOQ 1 ng/ml and linearity between 10 and 200 ng/ml with R2 > 0.999. Pharmacokinetic parameters were obtained by non-compartmental analysis and results were statistically compared using logarithmically transformed data, where p > 0.05 was considered as non-significant with a 90% CI limit of 0.8-1.25. The AUC0-t and AUC0-∞ of ER pellets were not significantly different with geometric mean ratio 1.0096 and 1.0093, respectively. The Cmax of IR pellets (98.051 ng/ml) was higher than the ER pellets (84.052 ng/ml) and the Tmax of ER pellets (5.116 h) was higher than the IR pellets (3.029 h). No significant food effect was observed on key pharmacokinetic parameters of ER pellets. Eudragit RL100 (6%) coated Meclizine HCl pellets have a potential therapeutic effect for an extended time period.
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Affiliation(s)
- Faaiza Qazi
- Department of Pharmaceutics and Bioavailability and Bioequivalence Research Facility, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Muhammad Harris Shoaib
- Department of Pharmaceutics and Bioavailability and Bioequivalence Research Facility, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, 75270, Pakistan.
| | - Rabia Ismail Yousuf
- Department of Pharmaceutics and Bioavailability and Bioequivalence Research Facility, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Fahad Siddiqui
- Department of Pharmaceutics and Bioavailability and Bioequivalence Research Facility, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Muhammad Iqbal Nasiri
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, 75270, Pakistan.,Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, Karachi, Pakistan
| | - Kamran Ahmed
- Department of Pharmaceutics and Bioavailability and Bioequivalence Research Facility, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Iyad Naeem Muhammad
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, 75270, Pakistan
| | - Farrukh Rafiq Ahmed
- Department of Pharmaceutics, Faculty of Pharmacy and Pharmaceutical Sciences, University of Karachi, Karachi, 75270, Pakistan
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Kaffash E, Saremnejad F, Abbaspour M, Mohajeri SA, Garekani HA, Jafarian AH, Sardo HS, Akhgari A, Nokhodchi A. Statistical optimization of alginate-based oral dosage form of 5-aminosalicylic acid aimed to colonic delivery: In vitro and in vivo evaluation. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.04.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Dong L, Yang F, Zhu Z, Yang Y, Zhang X, Ye M, Pan W, Pan H. Preparation, Characterization and Pharmacokinetics Evaluation of the Compound Capsules of Ibuprofen Enteric-Coated Sustained-Release Pellets and Codeine Phosphate Immediate-Release Pellets. AAPS PharmSciTech 2018; 19:3057-3066. [PMID: 30091062 DOI: 10.1208/s12249-018-1119-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/02/2018] [Indexed: 12/21/2022] Open
Abstract
The objective of this study was to prepare ibuprofen enteric-coated sustained-release pellets (IB-SRPs) and codeine phosphate immediate-release pellets (CP-IRPs) to play a synergistic role in analgesia. The pellets were developed by extrusion-spheronization and fluidized bed coating technology. The single-factor investigation was used to determine the optimal prescription and process. The sustained-release membrane of IB-SRPs was water-insoluble ethyl cellulose (EC), triethyl citrate (TEC) was used as plasticizer, and hydroxypropyl methylcellulose (HPMCP) was chose as porogen. Besides, the immediate-release layer of CP-IRPs was gastric-soluble coating film. The ibuprofen and codeine phosphate compound capsules (IB-CP SRCs) were prepared by IB-SRPs and CP-IRPs packed together in capsules with the optimum doses of 200 and 13 mg, respectively. The prepared pellets were evaluated by scanning electron microscopy and dissolution test. Pharmacokinetic studies in beagle dogs indicated that the optimized IB-CP SRCs had smaller individual differences and better reproducibility comparing with commercial available tablets. Additionally, IB-CP SRCs achieved consistency with in vivo and in vitro tests. Therefore, IB-CP SRCs could play a great role in rapid and long-term analgesic.
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Farooq M, Shoaib MH, Yousuf RI, Qazi F, Hanif M. Development of extended release loxoprofen sodium multiparticulates using different hydrophobic polymers. Polym Bull (Berl) 2018. [DOI: 10.1007/s00289-018-2510-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Shin TH, Im SH, Goh MS, Lee ES, Ho MJ, Kim CH, Kang MJ, Choi YW. Novel Extended-Release Multiple-Unit System of Imidafenacin Prepared by Fluid-Bed Coating Technique. AAPS PharmSciTech 2018; 19:2639-2645. [PMID: 29931609 DOI: 10.1208/s12249-018-1100-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 06/06/2018] [Indexed: 11/30/2022] Open
Abstract
The objective of this study was to formulate once-a-day extended-release (ER) pellet system of imidafenacin (IDN), a recently approved urinary antispasmodic agent with twice-a-day dosing regimen. The sugar sphere pellets were firstly layered with IDN and hypromellose and then coated with Eudragit RS (copolymers of acrylic and methacrylic acid esters), employed as a release modifier, using a fluid-bed coater. Solid-state characterizations using solid-state X-ray diffraction and differential scanning calorimeter indicated that the antispasmodic agent was homogeneously layered onto the pellets in an amorphous state. Drug release from multiple-unit ER system was effectively retarded in proportion to the amount of Eudragit RS in the outer layer, with a high correlation value above 0.86. In a pharmacokinetic evaluation in beagle dogs, the plasma concentration profile of IDN was markedly protracted by ER pellets, exhibiting delayed the time needed to reach the maximum drug concentration and the elimination half-life in plasma, compared to the commercial immediate release form (Uritos® tablet, Kyorin Pharmaceutical Co., Ltd., Japan). Therefore, the novel ER pellets can be a promising tool for oral IDN therapy, providing a once-a-day dosing regimen, and thus, improving patient compliance.
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Lee YS, Song JG, Lee SH, Han HK. Sustained-release solid dispersion of pelubiprofen using the blended mixture of aminoclay and pH independent polymers: preparation and in vitro/in vivo characterization. Drug Deliv 2017; 24:1731-1739. [PMID: 29124978 PMCID: PMC8240988 DOI: 10.1080/10717544.2017.1399304] [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: 09/25/2017] [Revised: 10/24/2017] [Accepted: 10/28/2017] [Indexed: 12/03/2022] Open
Abstract
The present study aimed to develop the sustained-release oral dosage form of pelubiprofen (PEL) by using the blended mixture of 3-aminopropyl functionalized-magnesium phyllosilicate (aminoclay) and pH-independent polymers. The sustained-release solid dispersion (SRSD) was prepared by the solvent evaporation method and the optimal composition of SRSD was determined as the weight ratio of drug: Eudragit® RL PO: Eudragit® RS PO of 1:1:2 in the presence of 1% of aminoclay (SRSD(F6)). The dissolution profiles of SRSD(F6) were examined at different pHs and in the simulated intestinal fluids. The drug release from SRSD(F6) was limited at pH 1.2 and gradually increased at pH 6.8, resulting in the best fit to Higuchi equation. The sustained drug release from SRSD(F6) was also maintained in simulated intestinal fluid at fasted-state (FaSSIF) and fed-state (FeSSIF). The structural characteristics of SRSD(F6) were examined by using powder X-ray diffraction (PXRD), differential scanning calorimetry (DSC) and Fourier transform infrared spectroscopy (FT-IR), indicating the change of drug crystallinity to an amorphous form. After oral administration in rats, SRSD(F6) exhibited the prolonged drug exposure in plasma. For both PEL and PEL-transOH (active metabolite), once a day dosing of SRSD(F6) achieved oral exposure (AUC) comparable to those from the multiple dosing (3 times a day) of untreated drug. In addition, the in vivo absorption of SRSD(F6) was well-correlated with the in vitro dissolution data, establishing a good level A in vitro/in vivo correlation. These results suggest that SRSD(F6) should be promising for the sustained-release of PEL, thereby reducing the dosing frequency.
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Affiliation(s)
- Yeo-Song Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang, Korea
| | - Jae Guen Song
- College of Pharmacy, Dongguk University-Seoul, Goyang, Korea
| | - Sang Hoon Lee
- College of Pharmacy, Dongguk University-Seoul, Goyang, Korea
| | - Hyo-Kyung Han
- College of Pharmacy, Dongguk University-Seoul, Goyang, Korea
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Patra CN, Priya R, Swain S, Kumar Jena G, Panigrahi KC, Ghose D. Pharmaceutical significance of Eudragit: A review. FUTURE JOURNAL OF PHARMACEUTICAL SCIENCES 2017. [DOI: 10.1016/j.fjps.2017.02.001] [Citation(s) in RCA: 101] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Garekani HA, Dolatabadi R, Akhgari A, Abbaspour MR, Sadeghi F. Evaluation of ethylcellulose and its pseudolatex (Surelease) in preparation of matrix pellets of theophylline using extrusion-spheronization. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2017; 20:9-16. [PMID: 28133518 PMCID: PMC5243980 DOI: 10.22038/ijbms.2017.8086] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVES This study evaluates the effect of substitution of microcrystalline cellulose (MCC) with ethylcellulose (EC) on mechanical and release characteristics of theophylline pellets. MATERIALS AND METHODS The effect of addition of EC was investigated on characteristics of pellets with varying drug content prepared by extrusion-spheronization. Also the effect of type of granulating liquid (water or Surelease) was investigated on characteristics of selected pellets. The pellets were characterized for particle size (sieve analysis), mechanical strength, morphology (microscopy), thermal (DSC) and dissolution behaviors. RESULTS The exrtudability of the wet mass was reduced upon inclusion of EC so that complete replacement of MCC was not possible. Increase in EC percentage led to lower production yield and formation of pellets with larger diameter and slightly rough surfaces. Inclusion of EC also affected the mechanical properties of pellets but had negligible effect on drug release profile. The surface of selected pellets became smoother and their production yield increased upon the use of Surelease as granulating liquid. In addition the rate of drug release decreased to some extent when Surelease was used. CONCLUSION Preparation of theophylline pellets with EC alone was not possible in process of extrusion-spheronization. Partial replacement of MCC with EC changed physicomechanical properties of pellets but hardly affected drug release. Although the use of Surelease as granulation liquid slightly decreased the rate of drug release, desirable matrix pellets with sustained drug release could not be produced. Despite this outcome however, these pellets could benefit from reduced coating thickness for drug release control.
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Affiliation(s)
- Hadi Afrasiabi Garekani
- Pharmaceutical Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Roshanak Dolatabadi
- Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Abbas Akhgari
- Targeted Drug Delivery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Mohammad Reza Abbaspour
- Targeted Drug Delivery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
| | - Fatemeh Sadeghi
- Targeted Drug Delivery Research Center, Mashhad University of Medical Sciences, Mashhad, Iran; Department of Pharmaceutics, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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Huanbutta K, Limmatvapirat S, Sungthongjeen S, Sriamornsak P. Novel Strategy to Fabricate Floating Drug Delivery System Based on Sublimation Technique. AAPS PharmSciTech 2016; 17:693-9. [PMID: 26314245 DOI: 10.1208/s12249-015-0398-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Accepted: 08/18/2015] [Indexed: 11/30/2022] Open
Abstract
The present study aims to develop floating drug delivery system by sublimation of ammonium carbonate (AMC). The core tablets contain a model drug, hydrochlorothiazide, and various levels (i.e., 0-50% w/w) of AMC. The tablets were then coated with different amounts of the polyacrylate polymers (i.e., Eudragit® RL100, Eudragit® RS100, and the mixture of Eudragit® RL100 and Eudragit® RS100 at 1:1 ratio). The coated tablets were kept at ambient temperature (25°C) or cured at 70°C for 12 h before further investigation. The floating and drug release behaviors of the tablets were performed in simulated gastric fluid USP without pepsin at 37°C. The results showed that high amount of AMC induced the floating of the tablets. The coated tablets containing 40 and 50% AMC floated longer than 8 h with a time-to-float of about 3 min. The sublimation of AMC from the core tablets decreased the density of system, causing floating of the tablets. The tablets coated with Eudragit® RL100 floated at a faster rate than those of Eudragit® RS100. Even the coating level of polymer did not influence the time-to-float and floating time of coated tablets containing the same amount of AMC, the drug release from the tablets coated with higher coating level of polymer showed slower drug release. The results suggested that the sublimation technique using AMC is promising for the development of floating drug delivery system.
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Alshetaili AS, Almutairy BK, Alshahrani SM, Ashour EA, Tiwari RV, Alshehri SM, Feng X, Alsulays BB, Majumdar S, Langley N, Kolter K, Gryczke A, Martin ST, Repka MA. Optimization of hot melt extrusion parameters for sphericity and hardness of polymeric face-cut pellets. Drug Dev Ind Pharm 2016; 42:1833-41. [PMID: 27080252 DOI: 10.1080/03639045.2016.1178769] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The aim of this study was to formulate face-cut, melt-extruded pellets, and to optimize hot melt process parameters to obtain maximized sphericity and hardness by utilizing Soluplus(®) as a polymeric carrier and carbamazepine (CBZ) as a model drug. Thermal gravimetric analysis (TGA) was used to detect thermal stability of CBZ. The Box-Behnken design for response surface methodology was developed using three factors, processing temperature ( °C), feeding rate (%), and screw speed (rpm), which resulted in 17 experimental runs. The influence of these factors on pellet sphericity and mechanical characteristics was assessed and evaluated for each experimental run. Pellets with optimal sphericity and mechanical properties were chosen for further characterization. This included differential scanning calorimetry, drug release, hardness friability index (HFI), flowability, bulk density, tapped density, Carr's index, and fourier transform infrared radiation (FTIR) spectroscopy. TGA data showed no drug degradation upon heating to 190 °C. Hot melt extrusion processing conditions were found to have a significant effect on the pellet shape and hardness profile. Pellets with maximum sphericity and hardness exhibited no crystalline peak after extrusion. The rate of drug release was affected mainly by pellet size, where smaller pellets released the drug faster. All optimized formulations were found to be of superior hardness and not friable. The flow properties of optimized pellets were excellent with high bulk and tapped density.
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Affiliation(s)
- Abdullah S Alshetaili
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi, University , MS , USA ;,b Department of Pharmaceutics, College of Pharmacy , Prince Sattam Bin Abdulaziz University , Alkharj , Saudi Arabia
| | - Bjad K Almutairy
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi, University , MS , USA
| | - Saad M Alshahrani
- b Department of Pharmaceutics, College of Pharmacy , Prince Sattam Bin Abdulaziz University , Alkharj , Saudi Arabia
| | - Eman A Ashour
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi, University , MS , USA
| | - Roshan V Tiwari
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi, University , MS , USA
| | - Sultan M Alshehri
- c Department of Pharmaceutics, College of Pharmacy , King Saud University , Riyadh , Saudi Arabia
| | - Xin Feng
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi, University , MS , USA
| | - Bader B Alsulays
- b Department of Pharmaceutics, College of Pharmacy , Prince Sattam Bin Abdulaziz University , Alkharj , Saudi Arabia
| | - Soumyajit Majumdar
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi, University , MS , USA
| | | | - Karl Kolter
- e R&D Project, Management Excipients, BASF SE , Ludwigshafen , Germany
| | - Andreas Gryczke
- f Global Development and Technical Marketing, BASF SE , Ludwigshafen , Germany
| | | | - Michael A Repka
- a Department of Pharmaceutics and Drug Delivery, School of Pharmacy , The University of Mississippi, University , MS , USA ;,h Pii Center for Pharmaceutical Technology, The University of Mississippi, University , MS , USA
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Garekani HA, Nokhodchi A, Rayeni MA, Sadeghi F. Preparation and characterization and release properties of Eudragit RS based ibuprofen pellets prepared by extrusion spheronization: effect of binder type and concentration. Drug Dev Ind Pharm 2012; 39:1238-46. [PMID: 22873946 DOI: 10.3109/03639045.2012.707207] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The effects of type and concentration of binding agent on properties of Eudragit RS based pellets were studied. MATERIALS AND METHODS Pellets containing ibuprofen (60%), Eudragit RS (30%), Avicel (10%) were prepared by extrusion spheronization. PVP K30, PVP K90, HPMC 6cp, HPMC K100LV or HPMC K4M were used as binders in concentrations of 2, 4 or 6% based on the total weight of formulation. The process efficiency, pellet shape, size distribution, crushing strength, elastic modulus and drug release were examined. The effect of curing on pellet properties was also investigated. RESULTS The process of extrusion spheronization became difficult with increase in binder viscosity and/or concentration. An increase in binder viscosity and/or concentration resulted in reduction in the yield of pellets, wider particle size distribution and departure from spherical shape especially in the case of HPMC binder. The crushing strength and elastic modulus of pellets decreased with increase in PVPs concentration. However this was not the case for pellets containing HPMCs. Drug release rate increased as the concentration of binder increased. Pellets containing 2%w/w of PVP K30 showed the slowest release rate. For those pellets with brittle nature, curing changed the behavior of pellet under mechanical test to plastic deformation. Yield point and elastic modulus of all formulations decreased after curing. Curing decreased the drug release rate. CONCLUSION Binder type and concentration significantly affected the properties of pellets. For production of sustained release ibuprofen Eudragit RS based pellets lower viscosity binders (PVP K30) with concentrations less than 4%w/w was optimum.
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Affiliation(s)
- Hadi Afrasiabi Garekani
- Pharmaceutical Research center, School of Pharmacy, Mashhad University of Medical Sciences, Mashhad, Iran
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18
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Isosorbide-5-mononitrate (5-ISMN) sustained-release pellets prepared by double layer coating for reducing 5-ISMN migration and sublimation. Int J Pharm 2010; 400:138-44. [DOI: 10.1016/j.ijpharm.2010.08.046] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2010] [Revised: 08/29/2010] [Accepted: 08/31/2010] [Indexed: 11/19/2022]
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19
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Otero-Espinar F, Luzardo-Alvarez A, Blanco-Méndez J. Non-MCC materials as extrusion-spheronization aids in pellets production. J Drug Deliv Sci Technol 2010. [DOI: 10.1016/s1773-2247(10)50047-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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20
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Paker-Leggs S, Neau SH. Pellet characteristics and drug release when the form of propranolol is fixed as moles or mass in formulations for extruded and spheronized Carbopol-containing pellets. Int J Pharm 2009; 369:96-104. [DOI: 10.1016/j.ijpharm.2008.11.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2008] [Revised: 10/31/2008] [Accepted: 11/03/2008] [Indexed: 10/21/2022]
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21
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Gallardo D, Skalsky B, Kleinebudde P. Controlled release solid dosage forms using combinations of (meth)acrylate copolymers. Pharm Dev Technol 2008; 13:413-23. [PMID: 18720248 DOI: 10.1080/10837450802202098] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Controlled release solid oral dosage forms have been widely used for decades, enabling drugs to be administered more comfortably while at the same time providing a sustained and reproducible method of release. (Meth)acrylate copolymers are one of the options available when considering a sustained release solid form. Due to their different functionalities it is possible to achieve various different release profiles. The electrical character of these copolymers and their pH-dependent solubility can result in new and modified patterns when these polymers are combined. This review sheds light on various studies involving combinations of (meth)acrylate copolymers for use in multi-unit systems and matrix tablets, and also on several analytical methods that help to identify possible interactions between these polymers.
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Affiliation(s)
- Diego Gallardo
- EVONIK Industries, Pharma Polymers, Kirschenallee, Darmstadt, Germany.
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