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Shoman NA, Saady M, Teaima M, Abdelmonem R, El-Nabarawi MA, Elhabal SF. Merging konjac glucomannan with other copolymeric hydrogels as a cutting-edge liquid raft system for dual delivery of etoricoxib and famotidine. Drug Deliv 2023; 30:2189630. [PMID: 36927148 PMCID: PMC10184610 DOI: 10.1080/10717544.2023.2189630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/18/2023] Open
Abstract
This study aimed to formulate and evaluate a floating raft system for the co-delivery of etoricoxib (ETO) and famotidine (FAM) using a combination of glucomannan with natural/semi-synthetic polysaccharides. Formulation variables affect gelation lag time (GLT), floating lag time (FLT), and release percentage of drugs after 1-8 h, Stability, and viscosity parameters were evaluated. In vivo X-ray studies, followed by the pharmacokinetic study, were performed on human volunteers. Formulations exhibited pseudoplastic behavior for ease of swallowing. The optimum raft system (ORS) comprised 1% Na alginate, 0.1% Low Methoxyl (LM) pectin, 0.8% Konjac glucomannan (KGL), 1% Precirol, and 1% CaCO3. ORS exhibited rapid GLT and FLT (around 42 and 8 sec respectively) in 0.1 N HCl as well as controlled release of ETO (15% in 1 h and 82% in 8 h) and FAM (29% in 1 h and 85% in 8 h). Formulation stability with the absence of any drug-excipient interactions was observed. The X-ray imaging showed a promising buoyancy ability for approximately 8 h. Compared with marketed products, ORS showed superior relative bioavailability for both drugs. These findings revealed the successful preparation of a promising raft system with improved dual drug delivery.
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Affiliation(s)
- Nabil A Shoman
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Marwa Saady
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Mahmoud Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Rehab Abdelmonem
- Department of Industrial Pharmacy, College of Pharmaceutical Sciences and Drug Manufacturing, Misr University for Science and Technology (MUST), Giza, Egypt
| | - Mohamed A El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Sammar Fathy Elhabal
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Modern University for Technology and Information (MTI), Mokattam, Cairo, Egypt
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Liang YK, Cheng WT, Chen LC, Sheu MT, Lin HL. Development of a Swellable and Floating Gastroretentive Drug Delivery System ( sfGRDDS) of Ciprofloxacin Hydrochloride. Pharmaceutics 2023; 15:pharmaceutics15051428. [PMID: 37242670 DOI: 10.3390/pharmaceutics15051428] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/27/2023] [Accepted: 05/05/2023] [Indexed: 05/28/2023] Open
Abstract
Sangelose® (SGL) is a novel hydroxypropyl methylcellulose (HPMC) derivative that has been hydrophobically modified. Due to its high viscosity, SGL has the potential as a gel-forming and release-rate-controlled material for application in swellable and floating gastroretentive drug delivery systems (sfGRDDS). The aim of this study was to develop ciprofloxacin (CIP)-loaded sfGRDDS tablets comprised of SGL and HPMC in order to extend CIP exposure in the body and achieve optimal antibiotic treatment regimes. Results illustrated that SGL-HPMC-based sfGRDDS could swell to a diameter above 11 mm and showed a short floating lag time (<4 s) and long total floating time (>24 h) to prevent gastric emptying. In dissolution studies, CIP-loaded SGL-HPMC sfGRDDS demonstrated a specific biphasic release effect. Among the formulations, the SGL/type-K HPMC 15,000 cps (HPMC 15K) (50:50) group exhibited typical biphasic release profiles, with F4-CIP and F10-CIP individually releasing 72.36% and 64.14% CIP within 2 h dissolution, and sustaining release to 12 h. In pharmacokinetic studies, the SGL-HPMC-based sfGRDDS demonstrated higher Cmax (1.56-1.73 fold) and shorter Tmax (0.67 fold) than HPMC-based sfGRDDS. Furthermore, SGL 90L in GRDDS indicated an excellent biphasic release effect and a maximum elevation of relative bioavailability (3.87 fold). This study successfully combined SGL and HPMC to manufacture sfGRDDS that retain CIP in the stomach for an optimal duration while improving its pharmacokinetic characteristics. It was concluded that the SGL-HPMC-based sfGRDDS is a promising biphasic antibiotic delivery system that can both rapidly achieve the therapeutic antibiotic concentration and maintain the plasma antibiotic concentration for an extended period to maximize antibiotic exposure in the body.
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Affiliation(s)
- Yu-Kai Liang
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Wen-Ting Cheng
- Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, Hsinchu 30015, Taiwan
| | - Ling-Chun Chen
- Department of Biotechnology and Pharmaceutical Technology, Yuanpei University of Medical Technology, Hsinchu 30015, Taiwan
| | - Ming-Thau Sheu
- School of Pharmacy, College of Pharmacy, Taipei Medical University, Taipei 11031, Taiwan
| | - Hong-Liang Lin
- School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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In Vivo Evaluation of Thiamine Hydrochloride with Gastro-Retentive Drug Delivery in Healthy Human Volunteers Using Gamma Scintigraphy. Pharmaceutics 2023; 15:pharmaceutics15020691. [PMID: 36840013 PMCID: PMC9960539 DOI: 10.3390/pharmaceutics15020691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
A floating tablet system containing thiamine hydrochloride, a model drug with a narrow absorption window, was evaluated. The tablet was found to have a floating lag time of less than 30 s with a sustained drug release over 12 h during in vitro dissolution studies. The gastro-retentive property of the tablet in relation to the bioavailability of thiamine was determined in healthy human volunteers using gamma scintigraphy under fasted and fed conditions. The gastro-retentive time of the floating tablet could be prolonged up to 10 h under the fed state, compared to about 1.8 h in the fasted state. The prolonged gastric retention under the fed state resulted in a 2.8-fold increase in oral bioavailability of thiamine compared to that of the fasted state. There was also a 1.4-fold increase in thiamine absorption compared to that of a conventional immediate release tablet in the fed state. In the fasted state, the extent of thiamine absorption from the floating tablet was only about 70% of that absorbed from the immediate release tablet. Thus, to achieve a better performance, such floating tablet systems should be administered under a fed condition, to prolong the gastric retention time.
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Kim B, Byun Y, Lee EH. DoE-Based Design of a Simple but Efficient Preparation Method for a Non-Effervescent Gastro-Retentive Floating Tablet Containing Metformin HCl. Pharmaceutics 2021; 13:1225. [PMID: 34452186 PMCID: PMC8399106 DOI: 10.3390/pharmaceutics13081225] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Revised: 08/05/2021] [Accepted: 08/06/2021] [Indexed: 11/21/2022] Open
Abstract
A sustained-release non-effervescent floating matrix tablet was prepared using a simple and efficient direct compression of spray-dried granules containing metformin hydrochloride and cetyl alcohol with hydroxypropyl methylcellulose K15M (HPMC K15M). The design of experiments was employed to explore the optimal composition of the tablet. The similarity factor was employed to evaluate the equivalence in dissolution profiles between the test tablets and Glucophage XR as a reference. Bootstrap analysis was used to eliminate the formulations for which the dissolution profile was potentially inequivalent to that of the reference. The optimized tablet consisting of 150 mg of cetyl alcohol and 17% HPMC K15M showed a dissolution profile comparable with that of the reference with a similarity factor of 52.41, exhibited a floating lag time of less than 3 s in buffer media, remained floating for 24 h, and reduced the tablet weight by about 20% compared to that of the reference. The current study sheds light on the potential use of non-effervescent gastro-retentive extended-release tablets for high-dose drugs using a simple and efficient direct compression method, and as a potential alternative treatment for Glucophage XR. This study also highlights the importance of a systematic approach to formulation optimization and the evaluation of the dissolution profile.
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Affiliation(s)
| | | | - Eun Hee Lee
- College of Pharmacy, Korea University, 2511 Sejong-ro, Sejong 339700, Korea; (B.K.); (Y.B.)
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Teaima M, Abdel Hamid MM, Shoman NA, Jasti BR, El-Nabarawi MA. Promising Swellable Floating Bupropion Tablets: Formulation, in vitro/in vivo Evaluation and Comparative Pharmacokinetic Study in Human Volunteers. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:2741-2757. [PMID: 32764875 PMCID: PMC7368561 DOI: 10.2147/dddt.s258571] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Accepted: 06/26/2020] [Indexed: 12/27/2022]
Abstract
Purpose Bupropion is an antidepressant drug that facilitates weight loss. It is a highly water-soluble drug that needs multiple dosing, so it is considered a potential candidate for oral controlled-release dosage form. The aim of this research was to formulate and evaluate satiety-inducing swellable floating bupropion tablets by direct compression targeting depression associated with eating disorders. Various combinations of natural and semi-synthetic hydrogels were selected to achieve maximum swelling and remaining buoyant in the stomach. This synergistically enhances weight loss by increasing satiety. Methods An I-optimal mixture design was conducted to establish the optimal quantitative composition of tablets. Friability, floating lag time, swelling index after 4 and 8 hours, along with the percent of bupropion released at 1 and 8 hours were selected as dependent variables. The optimized formulation was characterized by physicochemical properties, thermal stability, and chemical interaction. In vivo radiographic evaluation of gastric residence besides, the oral bioavailability relative to marketed Wellbutrin® sustained-release tablets were investigated using human volunteers. Results The optimized formulation (73.3 mg xanthan, 120 mg glucomannan, 8.4 mg tamarind kernel powder, 78.3 mg HPMC K15M) was achieved with the overall desirability equals 0.782. In vivo radiographic study showed that formulation was retained for >8 hours in the stomach. Compared with the marketed BUP tablets, the Cmax was almost the same with a significant increase (p =0.004) for Tmax. Conclusion Using combinations of these hydrogels would be promising gastroretentive delivery systems in the control of bupropion rate release with enhanced floating and swelling features.
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Affiliation(s)
- Mahmoud Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Magdi M Abdel Hamid
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Nabil A Shoman
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Ahram Canadian University, Giza, Egypt
| | - Bhaskara R Jasti
- Department of Pharmaceutics and Medicinal Chemistry, Thomas J. Long School of Pharmacy & Health Sciences, University of the Pacific, Stockton, California, USA
| | - Mohamed A El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
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Saleem MU, Nasiri MI, Zaman SU, Khan N, Azeem M. Formulation development and characterization of cellulose/ polyacrylic acid – based polymers on the release of celecoxib from extended release tablets. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-02201-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Hajikarimi A, Sadeghi M. Free radical synthesis of cross-linking gelatin base poly NVP/acrylic acid hydrogel and nanoclay hydrogel as cephalexin drug deliver. JOURNAL OF POLYMER RESEARCH 2020. [DOI: 10.1007/s10965-020-2020-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Choiri S, Sulaiman TNS, Rohman A. Assessment of the effect of polymers combination and effervescent component on the drug release of swellable gastro-floating tablet formulation through compartmental modeling-based approach. Drug Dev Ind Pharm 2020; 46:146-158. [PMID: 31894720 DOI: 10.1080/03639045.2019.1711387] [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: 12/17/2022]
Abstract
The aim of this research was to assess the effect of polymer blend and effervescent components on the floating and swelling behaviors of swellable gastro-floating formulation as well as the drug release through a compartmental modeling analysis. Swellable gastro-floating formulation of freely water-soluble drug, metformin HCl as a drug model, was formulated and developed using D-optimal design. Polymer combination between interpolymer complex (IPC) (poly-vinyl acetate-copolymer methacrylate) and hydroxy propyl methyl cellulose (HPMC), and effervescent components were studied and optimized in this work. Several factors affecting the drug release behavior were determined e.g. swelling behavior, erosion behavior, and floating behavior were studied as well as the drug release through compartmental modeling analysis. The results revealed that the hydrophilic polymer was responsible for gas entrapment formed from effervescent reaction, meanwhile IPC contributed on maintaining the swollen matrix integrity through intermolecular polymer interaction. In addition, effervescent components played fundamental role in the formation of porous system as well as inducing burst release effect. Compartmental modeling provided different outlook about the drug release. Presence of IPC at a high proportion (10-15%) of the polymer blend modulated the changes of pattern of the drug release kinetics and mechanism. Finally, compartmental modeling-based approach was more adequate to describe the drug release kinetics and mechanism compared to the monophasic equation model correlating with process understanding of the drug release from swellable gastro-floating formulation.
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Affiliation(s)
- Syaiful Choiri
- Pharmaceutical Technology and Drug Delivery, Department of Pharmacy, Universitas Sebelas Maret, Surakarta, Indonesia
| | | | - Abdul Rohman
- Department of Pharmaceutical Chemistry, Universitas Gadjah Mada, Yogyakarta, Indonesia
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Schneider F, Koziolek M, Weitschies W. In Vitro and In Vivo Test Methods for the Evaluation of Gastroretentive Dosage Forms. Pharmaceutics 2019; 11:E416. [PMID: 31426417 PMCID: PMC6723944 DOI: 10.3390/pharmaceutics11080416] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/07/2019] [Accepted: 08/12/2019] [Indexed: 12/16/2022] Open
Abstract
More than 50 years ago, the first concepts for gastroretentive drug delivery systems were developed. Despite extensive research in this field, there is no single formulation concept for which reliable gastroretention has been demonstrated under different prandial conditions. Thus, gastroretention remains the holy grail of oral drug delivery. One of the major reasons for the various setbacks in this field is the lack of predictive in vitro and in vivo test methods used during preclinical development. In most cases, human gastrointestinal physiology is not properly considered, which leads to the application of inappropriate in vitro and animal models. Moreover, conditions in the stomach are often not fully understood. Important aspects such as the kinetics of fluid volumes, gastric pH or mechanical stresses have to be considered in a realistic manner, otherwise, the gastroretentive potential as well as drug release of novel formulations cannot be assessed correctly in preclinical studies. This review, therefore, highlights the most important aspects of human gastrointestinal physiology and discusses their potential implications for the evaluation of gastroretentive drug delivery systems.
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Affiliation(s)
- Felix Schneider
- Department of Biopharmaceutics and Pharmaceutical Technology, Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany
| | - Mirko Koziolek
- Department of Biopharmaceutics and Pharmaceutical Technology, Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany
| | - Werner Weitschies
- Department of Biopharmaceutics and Pharmaceutical Technology, Institute of Pharmacy, University of Greifswald, 17489 Greifswald, Germany.
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Peragine C, Walker SA, Walker S, Palmay L. Fluoroquinolone Antibiotic Prophylaxis to Prevent Post-Traumatic Bacterial Infectious Endophthalmitis: Using Monte Carlo Simulation to Evaluate the Probability of Success. J Ocul Pharmacol Ther 2019; 35:366-371. [DOI: 10.1089/jop.2019.0013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Christine Peragine
- Department of Pharmacy, Sunnybrook Health Sciences Centre, Toronto, Canada
- Leslie L. Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Sandra A.N. Walker
- Department of Pharmacy, Sunnybrook Health Sciences Centre, Toronto, Canada
- Leslie L. Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Scott Walker
- Department of Pharmacy, Sunnybrook Health Sciences Centre, Toronto, Canada
- Leslie L. Dan Faculty of Pharmacy, University of Toronto, Toronto, Canada
| | - Lesley Palmay
- Department of Pharmacy, Sunnybrook Health Sciences Centre, Toronto, Canada
- Faculty of Pharmacy, University of Waterloo, Waterloo, Canada
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Tripathi J, Thapa P, Maharjan R, Jeong SH. Current State and Future Perspectives on Gastroretentive Drug Delivery Systems. Pharmaceutics 2019; 11:pharmaceutics11040193. [PMID: 31010054 PMCID: PMC6523542 DOI: 10.3390/pharmaceutics11040193] [Citation(s) in RCA: 60] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2019] [Revised: 04/07/2019] [Accepted: 04/17/2019] [Indexed: 01/09/2023] Open
Abstract
In recent years, many attempts have been made to enhance the drug bioavailability and therapeutic effectiveness of oral dosage forms. In this context, various gastroretentive drug delivery systems (GRDDS) have been used to improve the therapeutic efficacy of drugs that have a narrow absorption window, are unstable at alkaline pH, are soluble in acidic conditions, and are active locally in the stomach. In this review, we discuss the physiological state of the stomach and various factors that affect GRDDS. Recently applied gastrointestinal technologies such as expandable, superporous hydrogel; bio/mucoadhesive, magnetic, ion-exchange resin; and low- and high-density-systems have also been examined along with their merits and demerits. The significance of in vitro and in vivo evaluation parameters of various GRDDS is summarized along with their applications. Moreover, future perspectives on this technology are discussed to minimize the gastric emptying rate in both the fasted and fed states. Overall, this review may inform and guide formulation scientists in designing the GRDDS.
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Affiliation(s)
- Julu Tripathi
- College of Pharmacy, Dongguk University-Seoul, 32 Donggukro, Ilsandonggu, Goyang, Gyeonggi 10326, Korea.
| | - Prakash Thapa
- College of Pharmacy, Dongguk University-Seoul, 32 Donggukro, Ilsandonggu, Goyang, Gyeonggi 10326, Korea.
| | - Ravi Maharjan
- College of Pharmacy, Dongguk University-Seoul, 32 Donggukro, Ilsandonggu, Goyang, Gyeonggi 10326, Korea.
| | - Seong Hoon Jeong
- College of Pharmacy, Dongguk University-Seoul, 32 Donggukro, Ilsandonggu, Goyang, Gyeonggi 10326, Korea.
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Emami J, Rezazadeh M, Mashayekhi M, Rostami M, Jahanian-Najafabadi A. A novel mixed polymeric micelle for co-delivery of paclitaxel and retinoic acid and overcoming multidrug resistance: synthesis, characterization, cytotoxicity, and pharmacokinetic evaluation. Drug Dev Ind Pharm 2017; 44:729-740. [PMID: 29235901 DOI: 10.1080/03639045.2017.1411940] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In the current study, retinoic acid (RA) was conjugated to Pluronic F127 (PF127) through an esterification process. Mixed micelles were formed with tocopheryl polyethylene glycol 1000 (TPGS) for co-delivery of paclitaxel (PTX) and RA to the cancer cells. Mixed micelles of RA-PF127 and TPGS in different weight ratios (10:0, 7:3, 5:5, 3:7, 0:10 w/w) were prepared and physicochemical properties including, particle size, zeta potential, critical micelle concentration (CMC), drug loading content, entrapment efficiency, drug release, cellular uptake and in vitro cytotoxicity, were investigated in details. Furthermore, the pharmacokinetics of PTX-loaded optimized mixed micelles were evaluated in Sprague-Dawley rats and compared with Stragen® (PTX in Cremophor EL®). Particle sizes and zeta potentials of the drug-loaded micelles were in the range of 102.6-223.5 nm and -5.3 to -9.6 mV, respectively. The 7:3 and 5:5 micellar combinations had lower CMC values (0.034-0.042 mg/mL) than 0:10 (0.124 mg/mL). The entrapment efficiencies of 10:0, 7:3, and 5:5 were 53.4 ± 9.3%, 61.3 ± 0.5%, and 78.7 ± 1.66%, respectively. The release rates of PTX from 7:3 and 5:5 mixed micelles were significantly slower than other formulations. Cytotoxicity assay demonstrated increased cytotoxic activity of PTX-loaded mixed micelles compared to free PTX. The Vd and t1/2ß of PTX-loaded RA-PF127/TPGS (7:3) were increased by 2.61- and 1.27-fold, respectively, while the plasma area under the curve (AUC) of the micelles was 2.03-fold lower than those of Stragen®. Therefore, these novel mixed micelles could be effectively used for delivery of PTX and RA to the cancer cells. Moreover, TPGS as part of micelle composition could enhance the therapeutic effect of PTX and reduce side effects.
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Affiliation(s)
- Jaber Emami
- a Department of Pharmaceutics , School of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science , Isfahan , Iran
| | - Mahboubeh Rezazadeh
- b Department of Pharmaceutics and Novel Drug Delivery System Research Center , School of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science , Isfahan , Iran
| | - Mahboubeh Mashayekhi
- a Department of Pharmaceutics , School of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science , Isfahan , Iran
| | - Mahboubeh Rostami
- c Department of Medicinal Chemistry , School of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science , Isfahan , Iran
| | - Ali Jahanian-Najafabadi
- d Department of Pharmaceutical Biotechnology , School of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Sciences , Isfahan , Iran
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Guzmán ML, Romañuk CB, Sanchez MF, Luciani Giacobbe LC, Alarcón-Ramirez LP, Battistini FD, Alovero FL, Jimenez-Kairuz AF, Manzo RH, Olivera ME. Urinary excretion of ciprofloxacin after administration of extended release tablets in healthy volunteers. Swellable drug-polyelectrolyte matrix versus bilayer tablets. Drug Deliv Transl Res 2017; 8:123-131. [DOI: 10.1007/s13346-017-0442-z] [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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Li Z, Zhao L, Lin X, Shen L, Feng Y. Direct compaction: An update of materials, trouble-shooting, and application. Int J Pharm 2017; 529:543-556. [PMID: 28720538 DOI: 10.1016/j.ijpharm.2017.07.035] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 07/08/2017] [Accepted: 07/10/2017] [Indexed: 01/25/2023]
Abstract
Direct compaction (DC) is the preferred choice for tablet manufacturing; however, only less than 20% of active pharmaceutical ingredients could be compacted via DC as its high requirement for functional properties of materials. Materials with improper functionalities could lead to serious troubles during DC manufacturing, such as content non-uniformity, sticking, and capping, all of which profoundly affect the properties of final products and, thus, severely restrict the practical application of DC. With undoubted importance, these seem to be unexpectedly ignored by reviewers but not researchers in terms of many original research articles published recently. Therefore, as an informative supplement and update, this review mainly focused on trouble-shooting and application situation of DC, together with several newly reported materials.
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Affiliation(s)
- Zhe Li
- College of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PR China; Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PR China
| | - LiJie Zhao
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PR China
| | - Xiao Lin
- College of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PR China; Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PR China.
| | - Lan Shen
- College of Chinese Materia Medica, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PR China
| | - Yi Feng
- Engineering Research Center of Modern Preparation Technology of TCM of Ministry of Education, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, PR China
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Leung CY, Trementozzi AN, Lin Y, Xu J, Irdam E, MacPhee JM, He M, Karki SB, Boulas P, Zawaneh PN. Enteric coating of micron-size drug particles through a Würster fluid-bed process. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2017.04.046] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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16
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Crosslinking of poly(vinylpyrrolidone)/acrylic acid with tragacanth gum for hydrogels formation for use in drug delivery applications. Carbohydr Polym 2017; 157:185-195. [DOI: 10.1016/j.carbpol.2016.09.086] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Revised: 09/27/2016] [Accepted: 09/27/2016] [Indexed: 12/21/2022]
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17
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Bahri-Najafi R, Mostafavi A, Tavakoli N, Taymouri S, Shahraki MM. Preparation and in vitro- in vivo evaluation of acyclovir floating tablets. Res Pharm Sci 2017; 12:128-136. [PMID: 28515765 PMCID: PMC5385727 DOI: 10.4103/1735-5362.202451] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In the current study, floating dosage form containing acyclovir was developed to increase its oral bioavailability. Effervescent floating tablets containing 200 mg acyclovir were prepared by direct compression method with three different rate controlling polymers including Hydroxypropyl methylcellulose K4M, Carbapol 934, and Polyvinylpyrrolidone. Optimized formulation showed good floating properties and in vitro drug release characteristics with mean dissolution time and dissolution efficacy of about 4.76 h and 54.33%, respectively. X-ray radiography exhibited that the tablet would reside in the stomach for about 5 ± 0.7 h. After oral administration of floating tablet containing 200 mg acyclovir, the Cmax, Tmax, and AUC0–∞ of optimized gastroretentive formulation were found to be 551 ± 141 ng/mL, 2.75 ± 0.25 h and 3761 ± 909.6 ng/mL/h, respectively.
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Affiliation(s)
- Rahim Bahri-Najafi
- Department of Pharmaceutics and Novel Drug Delivery Systems Research Center, School of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science, Isfahan, I.R. Iran
| | - Abolfazl Mostafavi
- Department of Pharmaceutics and Novel Drug Delivery Systems Research Center, School of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science, Isfahan, I.R. Iran
| | - Naser Tavakoli
- Department of Pharmaceutics and Novel Drug Delivery Systems Research Center, School of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science, Isfahan, I.R. Iran
| | - Somayeh Taymouri
- Department of Pharmaceutics and Novel Drug Delivery Systems Research Center, School of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science, Isfahan, I.R. Iran
| | - Mohammad-Mehdi Shahraki
- Department of Pharmaceutics, School of Pharmacy and Pharmaceutical Science, Isfahan University of Medical Science, Isfahan, I.R. Iran
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Emami J, Rezazadeh M. A simple and sensitive high-performance liquid chromatography method for determination of ciprofloxacin in bioavailability studies of conventional and gastroretentive prolonged-release formulations. Adv Biomed Res 2016; 5:163. [PMID: 27995102 PMCID: PMC5137234 DOI: 10.4103/2277-9175.190995] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2015] [Accepted: 01/30/2016] [Indexed: 11/12/2022] Open
Abstract
Background: A very simple, sensitive, and accurate high-performance liquid chromatography (HPLC) method with ultraviolet detector was developed and applied to determine ciprofloxacin in human plasma following administration of a gastroretentive formulation developed in our laboratory. Materials and Methods: HPLC analysis was performed on a C18 μ-Bondapack column (250 mm × 3.9 mm) using acetonitrile: potassium dihydrogen phosphate solution 0.1 M (20:80, v/v, pH 3) at a flow rate of 1.5 ml/min and eluate was monitored at 276 nm. After addition of phenacetin as internal standard, plasma samples were treated with 0.1 M phosphate buffer (pH: 7) and followed by extraction with dichloromethane. The method was validated for linearity, precision, accuracy, limit of quantitation (LOQ), robustness, stability, and applied in bioavailability studies of our developed gastroretentive formulation in healthy volunteers. Results: The calibration curves were linear over the concentration range 0.025–4 μg/ml with the detection limit of 15 ng/ml. Accuracy % were within 93–115 and the coefficient of variance % ranged from 0.20 to 12.8. The very low LOQ (25 ng/ml) allowed avoiding fluorometric detection which is more expensive and is not available in all laboratories. Ciprofloxacin was stable in samples with no evidence of degradation during 3 freeze-thaw cycles and 3 months storage at –70°C. Conclusion: This validated HPLC method was successfully used for the determination of ciprofloxacin in human plasma following oral administration of controlled release formulation, conventional immediate-release tablets and when administered concomitantly with divalent and trivalent cations such as aluminum-, magnesium-, or calcium-containing products under which the bioavailability of ciprofloxacin is significantly reduced.
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Affiliation(s)
- Jaber Emami
- Department of Pharmaceutics, Isfahan Pharmaceutical Sciences Research Center, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Mahboubeh Rezazadeh
- Department of Pharmaceutics and Novel Drug Delivery Systems Research Center, School of Pharmacy and Pharmaceutical Sciences, Isfahan University of Medical Sciences, Isfahan, Iran
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Modification of drug delivery to improve antibiotic targeting to the stomach. Ther Deliv 2016; 6:741-62. [PMID: 26149788 DOI: 10.4155/tde.15.35] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
The obstacles to the successful eradication of Helicobacter pylori infections include the presence of antibiotic-resistant bacteria and therapy requiring multiple drugs with complicated dosing schedules. Other obstacles include bacterial residence in an environment where high antibiotic concentrations are difficult to achieve. Biofilm production by the bacteria is an additional challenge to the effective treatment of this infection. Conventional oral formulations used in the treatment of this infection have a short gastric residence time, thus limiting the duration of exposure of drug to the bacteria. This review summarizes the current research in the development of gastroretentive formulations and the prospective future applications of this approach in the targeted delivery of drugs such as antibiotics to the stomach.
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Kim JS, Cha KH, Kang SY, Won D, Jang SW, Son M, Son MH, Choi HJ, Lee YW, Kang MJ. In vivo gastric residence and gastroprotective effect of floating gastroretentive tablet of DA-9601, an extract of Artemisia asiatica, in beagle dogs. Drug Des Devel Ther 2016; 10:1917-25. [PMID: 27354765 PMCID: PMC4907637 DOI: 10.2147/dddt.s102918] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
OBJECTIVE DA-9601, an extract of Artemisia asiatica containing eupatilin and jaceosidin as active compounds, has been prescribed to treat gastritis in Asia. In recent times, sustained-release, floating gastroretentive (GR) tablets of DA-9601 are available on the market. In the present study, the physical properties and in vitro drug release profile, in vivo gastric residence time, and gastroprotective effect of GR tablet were compared to those of immediate release (IR) tablets of DA-9601. METHOD In vitro buoyancy behavior (floating lag time and duration) and release profile of eupatilin were assessed in acidic medium. The in vivo intragastric behaviors of the barium sulfate-loaded IR and GR tablets were evaluated in beagle dogs by radiographic studies. Local gastroprotective effect was compared in an experimentally induced gastric lesion in beagle dogs after oral administration of IR (three times per day) or GR (twice daily) tablets for 15 days. RESULTS Upon contact with gastric juice, a low-density floating tablet (apparent density of 0.93 g/cm(3)) was buoyant on the medium and was upheld for 14 hours, providing sustained drug release profile, whereas the IR tablet disintegrated within 10 minutes, showing complete drug release within 2 hours. In vivo radiographic studies showed that the GR tablet was retained for >4 hours in the stomach. Both DA-9601 formulations remarkably alleviated gastric mucosal injury compared to placebo group, when observed by gastric endoscopy. CONCLUSION Twice-daily GR tablets exhibited a prolonged gastric residence time and a remarkable mucosal restoration effect in animal models. Therefore, the GR system of DA-9601 could be a substitute dosage form for the treatment of gastritis, while reducing the dosing frequency and thus improving patient compliance.
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Affiliation(s)
- Jeong Soo Kim
- Dong-A Pharmaceutical Co. Ltd., Giheung-gu, Yongin, Gyeonggi, South Korea
| | - Kwang Ho Cha
- Dong-A Pharmaceutical Co. Ltd., Giheung-gu, Yongin, Gyeonggi, South Korea
| | - Seung Yeob Kang
- Dong-A Pharmaceutical Co. Ltd., Giheung-gu, Yongin, Gyeonggi, South Korea
| | - Donghan Won
- Dong-A Pharmaceutical Co. Ltd., Giheung-gu, Yongin, Gyeonggi, South Korea
| | - Sun Woo Jang
- Dong-A Pharmaceutical Co. Ltd., Giheung-gu, Yongin, Gyeonggi, South Korea
| | - Miwon Son
- Dong-A Pharmaceutical Co. Ltd., Giheung-gu, Yongin, Gyeonggi, South Korea
| | - Moon Ho Son
- Dong-A Pharmaceutical Co. Ltd., Giheung-gu, Yongin, Gyeonggi, South Korea
| | - Ho Jung Choi
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Young Won Lee
- College of Veterinary Medicine and Research Institute of Veterinary Medicine, Chungnam National University, Daejeon, South Korea
| | - Myung Joo Kang
- College of Pharmacy, Dankook University, Dongnam-gu, Cheonan, Chungnam, South Korea
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21
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Jafarbeglou M, Abdouss M, Shoushtari AM, Jafarbeglou M. Clay nanocomposites as engineered drug delivery systems. RSC Adv 2016. [DOI: 10.1039/c6ra03942a] [Citation(s) in RCA: 68] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Vella J, Vella M, Cassar K, Camilleri L, Serracino-Inglott A, Azzopardi LM, LaFerla G. Factors Affecting Penetration of Ciprofloxacin in Lower Extremity Ischemic Tissues. INT J LOW EXTR WOUND 2015; 15:126-31. [PMID: 26711367 DOI: 10.1177/1534734615623707] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
The aims of this study were to evaluate factors influencing the distribution of ciprofloxacin in tissue of patients suffering from varying degrees of peripheral arterial disease (PAD). Blood and tissue samples were collected from patients undergoing debridement or amputation procedures and the amount of ciprofloxacin in them was determined using high-performance liquid chromatography. All patients were administered a 200-mg dose of intravenous ciprofloxacin prior to the debridement or amputation procedure. Data, including patient gender, age, type of diabetes, presence of neuropathy, medications taken, and severity of PAD were collected. These data were then analyzed to determine factors influencing the concentrations of ciprofloxacin in tissue of the lower limbs. The Kruskal-Wallis test, Spearman correlation, and chi-square test were used to relate covariates and fixed factors with the concentration of ciprofloxacin in tissue. Following bivariate analysis, a 3-predictor regression model was fitted to predict tissue concentrations of ciprofloxacin given information about these predictors. Blood and tissue samples were collected from 50 patients having an average age of 68 years. Thirty-three patients were males and 35 patients suffered from type 2 diabetes. The average number of medications that these patients were taking was 10. The majority of patients (n = 35) were suffering from severe PAD. Tissue concentrations of ciprofloxacin were mainly related to plasma concentrations of ciprofloxacin, number of medications that the patients were taking and severity of PAD.
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Razavi M, Karimian H, Yeong CH, Sarji SA, Chung LY, Nyamathulla S, Noordin MI. Gamma scintigraphic study of the hydrodynamically balanced matrix tablets of Metformin HCl in rabbits. Drug Des Devel Ther 2015; 9:3125-39. [PMID: 26124637 PMCID: PMC4482377 DOI: 10.2147/dddt.s82935] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
The purpose of this study is to evaluate the in vitro and in vivo performance of gastro-retentive matrix tablets having Metformin HCl as model drug and combination of natural polymers. A total of 16 formulations were prepared by a wet granulation method using xanthan, tamarind seed powder, tamarind kernel powder and salep as the gel-forming agents and sodium bicarbonate as a gas-forming agent. All the formulations were evaluated for compendial and non-compendial tests and in vitro study was carried out on a USP-II dissolution apparatus at a paddle speed of 50 rpm. MOX2 formulation, composed of salep and xanthan in the ratio of 4:1 with 96.9% release, was considered as the optimum formulation with more than 90% release in 12 hours and short floating lag time. In vivo study was carried out using gamma scintigraphy in New Zealand White rabbits, optimized formulation was incorporated with 10 mg of 153Sm for labeling MOX2 formulation. The radioactive samarium oxide was used as the marker to trace transit of the tablets in the gastrointestinal tract. The in vivo data also supported retention of MOX2 formulation in the gastric region for 12 hours and were different from the control formulation without a gas and gel forming agent. It was concluded that the prepared floating gastro-retentive matrix tablets had a sustained-release effect in vitro and in vivo, gamma scintigraphy played an important role in locating the oral transit and the drug-release pattern.
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Affiliation(s)
- Mahboubeh Razavi
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Hamed Karimian
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Chai Hong Yeong
- Department of Biomedical Imaging and University of Malaya Research Imaging Centre, Faculty of Medicine, Kuala Lumpur, Malaysia
| | - Sazilah Ahmad Sarji
- Department of Biomedical Imaging and University of Malaya Research Imaging Centre, Faculty of Medicine, Kuala Lumpur, Malaysia
| | - Lip Yong Chung
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Shaik Nyamathulla
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia ; Department of Chemistry, Centre for Natural Products and Drug Discovery (CENAR), Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
| | - Mohamed Ibrahim Noordin
- Department of Pharmacy, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia ; Department of Chemistry, Centre for Natural Products and Drug Discovery (CENAR), Faculty of Science, University of Malaya, Kuala Lumpur, Malaysia
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Das D, Pal S. Modified biopolymer-dextrin based crosslinked hydrogels: application in controlled drug delivery. RSC Adv 2015. [DOI: 10.1039/c4ra16103c] [Citation(s) in RCA: 98] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
This review describes hydrogels and their classifications along with the synthesis and properties of biopolymer-dextrin based crosslinked hydrogels towards potential application in controlled drug delivery.
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Affiliation(s)
- Dipankar Das
- Polymer Chemistry Laboratory
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
| | - Sagar Pal
- Polymer Chemistry Laboratory
- Department of Applied Chemistry
- Indian School of Mines
- Dhanbad-826004
- India
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Gao Y, Gao Y, Yin F, Wang M, Wang Z, Ye T, Yang Y, Pan WS, Yang X. Preparation and pharmacokinetics study on gastro-floating sustained-release tablets of troxipide. Drug Dev Ind Pharm 2014; 41:1443-51. [PMID: 25190152 DOI: 10.3109/03639045.2014.956113] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The purpose of this research aimed at preparing gastro-floating sustained-release tablets of troxipide and a further study on in vitro release and in vivo bioavailability. Under the circumstances of direct powder compression, the floating tablets were successfully prepared with HPMC as main matrix material, Carbopol as assistant matrix material, octadecanol as floating agent and sodium bicarbonate as foaming agent to float by gas-forming. The floating time and accumulative release amount as evaluation indexes were utilized to perform pre-experiment screening and single-factor test, respectively, while central composite design response surface method was applied for formulation optimization, followed by in vivo pharmacokinetic study in beagles after oral administration for floating tablets and commercial tablets used as the control. The results indicated that the floating sustained-release tablets held a better capability for floating and drug release and more satisfactory pharmacokinetic parameters, such as a lower Cmax, a prolonged Tmax, but an equivalent bioavailability calculated by AUC0-24 compared to commercial tablets. So a conclusion was finally drawn that the floating sustained-release tablets possessing a good release property could be suitable for demands of design.
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Affiliation(s)
- Yunyun Gao
- a Department of Pharmaceutics, School of Pharmacy , Shenyang Pharmaceutical University , Shenyang , Liaoning , China
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Singh B, Varshney L, Sharma V. Design of sterile mucoadhesive hydrogels for use in drug delivery: Effect of radiation on network structure. Colloids Surf B Biointerfaces 2014; 121:230-7. [DOI: 10.1016/j.colsurfb.2014.06.020] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 06/03/2014] [Accepted: 06/06/2014] [Indexed: 10/25/2022]
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Das D, Pal S. Dextrin/poly (HEMA): pH responsive porous hydrogel for controlled release of ciprofloxacin. Int J Biol Macromol 2014; 72:171-8. [PMID: 25138539 DOI: 10.1016/j.ijbiomac.2014.08.007] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Revised: 08/06/2014] [Accepted: 08/11/2014] [Indexed: 10/24/2022]
Abstract
Herein, we report an oral route administration for ciprofloxacin hydrochloride delivery using dextrin and poly (2-hydroxyethyl methylacrylate) based crosslinked hydrogel (c-Dxt/pHEMA). Various characteristics such as FTIR spectra, XRD analyses, UV-VIS-NIR spectra, FESEM and E-SEM analyses, rheological characteristics, gel kinetics, deswelling characteristics as well as biodegradation study of the hydrogel have been carried out. FTIR, XRD along with solid state UV-VIS-NIR analyses explain the good compatibility between the drug and the hydrogel matrix. The in vitro release study demonstrates that c-Dxt/pHEMA releases ciprofloxacin in a sustained way (33.75% of drug has been released in 18h) and is expected to be a promising matrix for ciprofloxacin carrier. The release kinetics and mechanism suggest that drug release follows first order kinetics and non-Fickian diffusion mechanism. Finally, the hydrogel shows excellent physical stability as carrier for ciprofloxacin up to 3 months.
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Affiliation(s)
- Dipankar Das
- Polymer Chemistry Laboratory, Department of Applied Chemistry, Indian School of Mines, Dhanbad 826004, India
| | - Sagar Pal
- Polymer Chemistry Laboratory, Department of Applied Chemistry, Indian School of Mines, Dhanbad 826004, India.
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Awasthi R, Kulkarni GT. Decades of research in drug targeting to the upper gastrointestinal tract using gastroretention technologies: where do we stand? Drug Deliv 2014; 23:378-94. [PMID: 25026414 DOI: 10.3109/10717544.2014.936535] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
A major constraint in oral controlled release drug delivery is that not all the drug candidates are absorbed uniformly throughout the gastrointestinal tract (GIT). Drugs having "absorption window" are absorbed in a particular portion of GIT only or are absorbed to a different extent in various segments of the GIT. Thus, only the drug released in the region preceding and in close vicinity to the absorption window is available for absorption. The drug must be released from the dosage form in solution form; otherwise, it is generally not absorbed. Hence, much research has been dedicated to the development of gastroretentive drug delivery systems that may optimize the bioavailability and subsequent therapeutic efficacy of such drugs, as these systems have unique properties to bypass the gastric emptying process. These systems show excellent in vitro results but fail to give desirable in vivo performance. During the last 2-3 decades, researchers from the academia and industries are giving considerable importance in this field. Unfortunately, till date, few so-called gastroretentive dosage forms have been brought to the market in spite of numerous academic publications. The manuscript considers strategies that are commonly used in the development of gastroretentive drug delivery systems with a special attention on various parameters, which needs to be monitored during formulation development.
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Affiliation(s)
- Rajendra Awasthi
- a Department of Pharmaceutical Science, Research and Development Cell , Jawaharlal Nehru Technological University , Kukatpally, Hyderabad , Andhra Pradesh , India .,b Department of Pharmaceutics , Laureate Institute of Pharmacy , Kathog, Tehsil, Dehra, District Kangra , Himachal Pradesh , India , and
| | - Giriraj T Kulkarni
- c School of Pharmaceutical Science , ITM University , Gwaliar , Madhya Pradesh , India
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Application of design of experiment for floating drug delivery of tapentadol hydrochloride. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2013; 2013:625729. [PMID: 23878616 PMCID: PMC3710648 DOI: 10.1155/2013/625729] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/16/2013] [Accepted: 06/11/2013] [Indexed: 12/03/2022]
Abstract
The aim of the present study was to apply design of experiment (DOE) to optimize floating drug delivery of tapentadol hydrochloride. Tapentadol hydrochloride is a synthetic opioid used as a centrally acting analgesic and effective in both experimental and clinical pain. The half-life of the drug is about 4 hours and oral dose is 50 to 250 mg twice a day. For optimization 32 full factorial design was employed for formulation of tapentadol hydrochloride tablets. Sodium bicarbonate was incorporated as a gas-generating agent. Combination of polymers Xanthan gum and Locust bean gum was used to achieve controlled release effect. The concentration of polymers was considered as the independent variables and dependent variables were floating lag time and swelling index of the tablets. From the factorial batches, it was observed that formulation containing combination of 20% sodium bicarbonate and 10% citric acid shows optimum floating ability whereas the formulation containing 20% Xanthan gum and 28% Locust bean gum shows optimum sustained drug release pattern with adequate floating.
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Rodrigues LADS, Figueiras A, Veiga F, de Freitas RM, Nunes LCC, da Silva Filho EC, da Silva Leite CM. The systems containing clays and clay minerals from modified drug release: A review. Colloids Surf B Biointerfaces 2013; 103:642-51. [DOI: 10.1016/j.colsurfb.2012.10.068] [Citation(s) in RCA: 148] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2012] [Revised: 10/29/2012] [Accepted: 10/31/2012] [Indexed: 11/29/2022]
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Thakar K, Joshi G, Sawant KK. Bioavailability enhancement of baclofen by gastroretentive floating formulation: statistical optimization,in vitroandin vivopharmacokinetic studies. Drug Dev Ind Pharm 2012; 39:880-8. [DOI: 10.3109/03639045.2012.709249] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Impact of Excipient Interactions on Drug Bioavailability from Solid Dosage Forms. Pharm Res 2012; 29:2639-59. [DOI: 10.1007/s11095-012-0767-8] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2012] [Accepted: 04/24/2012] [Indexed: 02/07/2023]
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Pawar VK, Kansal S, Asthana S, Chourasia MK. Industrial perspective of gastroretentive drug delivery systems: Physicochemical, biopharmaceutical, technological and regulatory consideration. Expert Opin Drug Deliv 2012; 9:551-65. [DOI: 10.1517/17425247.2012.677431] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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