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Abdelkader DH, Belal AM, Elkordy EA, Sarhan NI, Essa EA. Fabrication and In-Vivo Evaluation of Polyvinyl pyrrolidone/Poloxamer 188 Hybrid Nanofibers of Deflazacort. Int J Pharm 2024; 655:123997. [PMID: 38484861 DOI: 10.1016/j.ijpharm.2024.123997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2023] [Revised: 03/06/2024] [Accepted: 03/11/2024] [Indexed: 03/21/2024]
Abstract
The superior flexibility, efficient drug loading, high surface-to-volume ratio, ease of formulation, and cost-controlled production are considered exceptional advantages of nanofibers (NFs) as a smart delivery system. Deflazacort (DEF) is an anti-inflammatory and immunosuppressant agent. It is categorized as a poorly soluble class II drug. In this study, DEF-loaded polymeric nanofibrous using the electrospinning technique mats, Polyvinyl pyrrolidone (PVP) with or without Poloxamer 188 (PX) were used as mat-forming polymers. Microscopical imaging, drug content (%), and in vitro dissolution studies were conducted for all NFs formulae (F1-F7). All NFs improved the DEF dissolution compared to the unprocessed form, with the superiority of the PVP/PX hybrid. The optimized formula (F7) exhibited an average diameter of 655.46 ± 90.4 nm and % drug content of 84.33 ± 5.58. The dissolution parameters of DEF loaded in PVP/PX NFs (F7) reflected a release of 95.3 % ± 3.1 and 102.6 % ± 1.7 after 5 and 60 min, respectively. NFs (F7) was investigated for drug-polymer compatibility using Fourier-Transform Infrared Spectroscopy (FTIR), Powder X-ray diffraction analysis (PXRD), and Differential Scanning Calorimetry (DSC). In vivo anti-inflammatory study employing male Sprague-Dawley rats showed a significant reduction of rat paw edema for F7 (p < 0.05) compared with unprocessed DEF with a normal epidermal and dermal skin structure comparable to the healthy negative control. Immunohistochemical and morphometric data displayed similarities between the immune reaction of F7 and the negative healthy control. The finding of this work emphasized that DEF loaded in PVP/PX NFs could be considered a useful strategy for enhancing the therapeutic performance of DEF.
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Affiliation(s)
- Dalia H Abdelkader
- Pharmaceutical Technology Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
| | - Abeer M Belal
- Pharmaceutical Technology Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Eman A Elkordy
- Anatomy Department, College of Medicine, Imam Mohammad Ibn Saud Islamic University, Riyadh, Saudi Arabia
| | - Naglaa I Sarhan
- Histology and Cell Biology Department, Faculty of Medicine, Tanta University, Tanta, Egypt
| | - Ebtessam A Essa
- Pharmaceutical Technology Department, Faculty of Pharmacy, Tanta University, Tanta, Egypt
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2
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Kimata R, Yoshihara N, Tomita Y, Terukina T, Kondo H. Polymer Characteristics for Drug Layering on Particles Using a Novel Melt Granulation Technology, MALCORE ®. AAPS PharmSciTech 2024; 25:81. [PMID: 38600252 DOI: 10.1208/s12249-024-02798-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2024] [Accepted: 03/25/2024] [Indexed: 04/12/2024] Open
Abstract
MALCORE®, a novel manufacturing technology for drug-containing particles (DCPs), relies on the melt granulation method to produce spherical particles with high drug content. The crucial aspect of particle preparation through MALCORE® involves utilizing polymers that dissolve in the melt component, thereby enhancing viscosity upon heating. However, only aminoalkyl methacrylate copolymer E (AMCE) has been previously utilized. Therefore, this study aims to discover other polymers and comprehend the essential properties these polymers need to possess. The results showed that polyvinylpyrrolidone (PVP) was soluble in the stearic acid (SA) melt component. FTIR examination revealed no interaction between SA and polymer. The phase diagram was used to analyze the state of the SA and polymer mixture during heating. It revealed the mixing ratio and temperature range where the mixture remained in a liquid state. The viscosity of the mixture depended on the quantity and molecular weight of the polymer dissolved in SA. Furthermore, the DCPs prepared using PVP via MALCORE® exhibited similar pharmaceutical properties to those prepared with AMCE. In conclusion, understanding the properties required for polymers in the melt granulation process of MALCORE® allows for the optimization of manufacturing conditions, such as temperature and mixing ratios, for efficient and consistent drug layering.
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Affiliation(s)
- Ryota Kimata
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka, 422-8526, Japan
- Pharmaceutical Development Department, Sawai Pharmaceutical Co., Ltd, 2-30, Miyahara 5-Chome, Yodogawa-Ku, Osaka, 532-0003, Japan
| | - Naoki Yoshihara
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka, 422-8526, Japan
- Pharmaceutical Development Department, Sawai Pharmaceutical Co., Ltd, 2-30, Miyahara 5-Chome, Yodogawa-Ku, Osaka, 532-0003, Japan
| | - Yuya Tomita
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka, 422-8526, Japan
| | - Takayuki Terukina
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka, 422-8526, Japan
| | - Hiromu Kondo
- School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-Ku, Shizuoka, 422-8526, Japan.
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Jayaseelan C, Siva D, Kamaraj C, Thirugnanasambandam R, Ganesh Kumar V, Subashni B, Ashokkumar R, Saravanan D. Phytosynthesis of zinc oxide nanoparticles for enhanced antioxidant, antibacterial, and photocatalytic properties: A greener approach to environmental sustainability. ENVIRONMENTAL RESEARCH 2024; 251:118770. [PMID: 38518913 DOI: 10.1016/j.envres.2024.118770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 03/11/2024] [Accepted: 03/19/2024] [Indexed: 03/24/2024]
Abstract
Multifunctional nanoparticles (NPs) production from phytochemicals is a sustainable process and an eco-friendly method, and this technique has a variety of uses. To accomplish this, we developed zinc oxide nanoparticles (ZnONPs) using the medicinal plant Tinospora cordifolia (TC). Instruments such as UV-Vis, XRD, FTIR, FE-SEM with EDX, and high-resolution TEM were applied to characterize the biosynthesized TC-ZnONPs. According to the UV-vis spectra, the synthesized TC-ZnONPs absorb at a wavelength centered at 374 nm, which corresponds to a 3.2 eV band gap. HRTEM was used to observe the morphology of the particle surface and the actual size of the nanostructures. TC-ZnONPs mostly exhibit the shapes of rectangles and triangles with a median size of 21 nm. The XRD data of the synthesized ZnONPs exhibited a number of peaks in the 2θ range, implying their crystalline nature. TC-ZnONPs proved remarkable free radical scavenging capacity on DPPH (2,2-Diphenyl-1-picrylhydrazyl), ABTS (2,2-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid), and NO (Nitric Oxide). TC-ZnONPs exhibited dynamic anti-bacterial activity through the formation of inhibition zones against Pseudomonas aeruginosa (18 ± 1.5 mm), Escherichia coli (18 ± 1.0 mm), Bacillus cereus (19 ± 0.5 mm), and Staphylococcus aureus (13 ± 1.1 mm). Additionally, when exposed to sunlight, TC-ZnONPs show excellent photocatalytic ability towards the degradation of methylene blue (MB) dye. These findings suggest that TC-ZnONPs are potential antioxidant, antibacterial, and photocatalytic agents.
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Affiliation(s)
- C Jayaseelan
- Centre for Laboratory Animal Technology and Research, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600119, India.
| | - D Siva
- Centre for Laboratory Animal Technology and Research, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600119, India.
| | - C Kamaraj
- Interdisciplinary Institute of Indian System of Medicine (IIISM), Directorate of Research and Virtual Education, SRM Institute of Science and Technology (SRMIST), Kattankulathur, 603203, Tamil Nadu, India
| | - R Thirugnanasambandam
- Centre for Ocean Research (DST-FIST Sponsored Centre), MoES - Earth Science & Technology Cell, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600119, India
| | - V Ganesh Kumar
- Centre for Ocean Research (DST-FIST Sponsored Centre), MoES - Earth Science & Technology Cell, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600119, India
| | - B Subashni
- Centre for Ocean Research (DST-FIST Sponsored Centre), MoES - Earth Science & Technology Cell, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600119, India
| | - R Ashokkumar
- Centre for Laboratory Animal Technology and Research, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600119, India
| | - D Saravanan
- Centre for Laboratory Animal Technology and Research, Sathyabama Institute of Science and Technology, Chennai, Tamil Nadu, 600119, India
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Erkoç T, Sevgili LM, Çavuş S. Hydroxypropyl cellulose/Polyvinylpyrrolidone Matrix Tablets Containing Ibuprofen: Infiltration, Erosion and Drug Release Characteristics. ChemistrySelect 2022. [DOI: 10.1002/slct.202202180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Tuğba Erkoç
- Istanbul University-Cerrahpaşa Faculty of Engineering Department of Chemical Engineering 34320 Istanbul Turkey
| | - Lutfullah M. Sevgili
- Istanbul University-Cerrahpaşa Faculty of Engineering Department of Chemical Engineering 34320 Istanbul Turkey
| | - Selva Çavuş
- Istanbul University-Cerrahpaşa Faculty of Engineering Department of Chemical Engineering 34320 Istanbul Turkey
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Mutual Effects of Hydrogen Bonding and Polymer Hydrophobicity on Ibuprofen Crystal Inhibition in Solid Dispersions with Poly( N-vinyl pyrrolidone) and Poly(2-oxazolines). Pharmaceutics 2021; 13:pharmaceutics13050659. [PMID: 34064530 PMCID: PMC8148000 DOI: 10.3390/pharmaceutics13050659] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2021] [Revised: 04/22/2021] [Accepted: 04/28/2021] [Indexed: 12/17/2022] Open
Abstract
Poly(N-vinyl pyrrolidone) (PVP), poly(2-methyl-2-oxazoline) (PMOZ), poly(2-ethyl-2-oxazoline) (PEOZ), poly(2-n-propyl-2-oxazoline) (PnPOZ), and poly(2-isopropyl-2-oxazoline) (PiPOZ) were used to prepare solid dispersions with ibuprofen (IB), a model poorly-water soluble drug. Dispersions, prepared by solvent evaporation, were investigated using powder X-ray diffractometry, differential scanning calorimetry, and FTIR spectroscopy; hydrogen bonds formed between IB and all polymers in solid dispersions. PMOZ, the most hydrophilic polymer, showed the poorest ability to reduce or inhibit the crystallinity of IB. In contrast, the more hydrophobic polymers PVP, PEOZ, PnPOZ, and PiPOZ provided greater but similar abilities to reduce IB crystallinity, despite the differing polymer hydrophobicity and that PiPOZ is semi-crystalline. These results indicate that crystallinity disruption is predominantly due to hydrogen bonding between the drug molecules and the polymer. However, carrier properties affected drug dissolution, where PnPOZ exhibited lower critical solution temperature that inhibited the release of IB, whereas drug release from other systems was consistent with the degree of ibuprofen crystallinity within the dispersions.
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Abstract
Telmisartan (TEL) is an antihypertensive BCS class II drug with low solubility at physiological pH. However, the solubility of TEL increases with the presence of an alkalizer. Electrospinning is one of the most recent techniques for the solubility enhancement studies. In this study, an electrospun orally disintegrating film (ODF) formulation of TEL was developed with L-arginine and polyvinylpyrrolidone K90 (PVP), and its characterization studies were performed. Preformulation studies were performed to investigate possible incompatibilities in the components of formulation with differential scanning calorimetry (DSC) and Fourier transform infrared spectrometer (FT-IR) analyses. ODFs were characterized in terms of drug content and uniformity, mechanical properties, fiber shape and diameter and in vitro dissolution profile. Smooth nanofibers without any beads were obtained. The dissolution rate of the TEL significantly increased. The chosen formulation had acceptable mechanical properties with much faster dissolution compared to the commercially available product. Developed ODF and marketed product were compared with a dissolution study in phosphate-buffered solution (pH 7.4). ODF and marketed product both reached 100% release in the 45th minute, and ODF results showed that ODF had much faster release than marketed product. In this study, TEL ODF formulation was successfully produced and characterized.
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Affiliation(s)
- Mehmet Birer
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Füsun Acartürk
- Department of Pharmaceutical Technology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
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Fouad SA, Malaak FA, El-Nabarawi MA, Abu Zeid K, Ghoneim AM. Preparation of solid dispersion systems for enhanced dissolution of poorly water soluble diacerein: In-vitro evaluation, optimization and physiologically based pharmacokinetic modeling. PLoS One 2021; 16:e0245482. [PMID: 33471832 PMCID: PMC7816977 DOI: 10.1371/journal.pone.0245482] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 01/02/2021] [Indexed: 01/09/2023] Open
Abstract
Diacerein (DCN), a BCS II compound, suffers from poor aqueous solubility and limited bioavailability. Solid dispersion systems (SD) of DCN were prepared by solvent evaporation, using hydrophilic polymers. In-vitro dissolution studies were performed and dissolution parameters were evaluated. I-Optimal factorial design was employed to study the effect of formulation variables (drug:polymer ratio and polymer type) on the measured responses including; drug content (DC) (%), dissolution efficiency at 15 min (DE (15 min)%) and 60 min (DE (60 min)%) and mean dissolution time (MDT) (min). The optimized SD was selected, prepared and evaluated, allowing 10.83 and 3.42 fold increase in DE (15 min)%, DE (60 min)%, respectively and 6.07 decrease in MDT, compared to plain drug. DSC, XRD analysis and SEM micrographs confirmed complete amorphization of DCN within the optimized SD. Physiologically based pharmacokinetic (PBPK) modeling was employed to predict PK parameters of DCN in middle aged healthy adults and geriatrics. Simcyp® software established in-vivo plasma concentration time curves of the optimized SD, compared to plain DCN. Relative bioavailability of the optimized SD compared to plain drug was 229.52% and 262.02% in healthy adults and geriatrics, respectively. Our study reports the utility of PBPK modeling for formulation development of BCS II APIs, via predicting their oral bio-performance.
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Affiliation(s)
- Shahinaze A. Fouad
- Department of Pharmaceutics, Faculty of Pharmacy, Ahram Canadian University, 6 of October City, Giza, Egypt
- * E-mail:
| | - Fady A. Malaak
- Department of Pharmaceutics, Faculty of Pharmacy, Ahram Canadian University, 6 of October City, Giza, Egypt
| | - Mohamed A. El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo, Egypt
| | - Khalid Abu Zeid
- Department of Pharmaceutics, Faculty of Pharmacy, Ahram Canadian University, 6 of October City, Giza, Egypt
| | - Amira M. Ghoneim
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Pharmaceutical Industries, Future University in Egypt, Cairo, Egypt
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Fang D, Yang Y, Cui M, Pan H, Wang L, Li P, Wu W, Qiao S, Pan W. Three-Dimensional (3D)-Printed Zero-Order Released Platform: a Novel Method of Personalized Dosage Form Design and Manufacturing. AAPS PharmSciTech 2021; 22:37. [PMID: 33409925 DOI: 10.1208/s12249-020-01886-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 11/18/2020] [Indexed: 12/13/2022] Open
Abstract
In 2017, there are 451 million people with diabetes worldwide. These figures were expected to increase to 693 million by 2045. The research and development of hypoglycemic drugs has become a top priority. Among them, sulfonylurea hypoglycemic drugs such as glipizide are commonly used in non-insulin-dependent type II diabetes. In order to adapt to the wide range of hypoglycemic drugs and the different individual needs of patients, this topic used glipizide as a model drug, and prepared glipizide preparations with 3D printing technology. The purpose of this study was to investigate the prescription applicability and control-release behavior of structure and explore the application prospects of 3D printing personalized drug delivery formulations. This article aims to establish a production process for personalized preparations based on 3D printing technology. The process is easy to obtain excipients, universal prescriptions, flexible dosages, exclusive customization, and integrated automation. In this paper, the UV method was used to determine the in vitro release and content analysis method of glipizide; the physical and chemical properties of the glipizide were investigated. The established analysis method was inspected and evaluated, and the experimental results met the methodological requirements. Glipizide controlled-release tablets were prepared by the semisolid extrusion (SSE) method using traditional pharmaceutical excipients combined with 3D printing technology. The formulation composition, in vitro release, and printing process parameters of the preparation were investigated, and the final prescription and process parameters (traveling speed 6.0-7.7 mm/s and extruding speed 0.0060-0.0077 mm/s) were selected through comprehensive analysis. The routine analysis results of the preparation showed that the performance of the preparation meets the requirements. In order for 3D printing technology to play a better role in community medicine and telemedicine, this article further explored the universality of the above prescription and determined the scope of application of prescription drugs and dosages. Glipizide, gliclazide, lornoxicam, puerarin, and theophylline were used as model drugs, and the range of drug loading percentage was investigated. The results showed when the solubility of the drug is 9.45 -8.34 mg/mL, and the drug loading is 3-43%; the release behavior is similar.
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Nazief AM, Hassaan PS, Khalifa HM, Sokar MS, El-Kamel AH. Lipid-Based Gliclazide Nanoparticles for Treatment of Diabetes: Formulation, Pharmacokinetics, Pharmacodynamics and Subacute Toxicity Study. Int J Nanomedicine 2020; 15:1129-1148. [PMID: 32110012 PMCID: PMC7038779 DOI: 10.2147/ijn.s235290] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 01/12/2020] [Indexed: 12/19/2022] Open
Abstract
Introduction Solid lipid nanoparticles (SLNs) are considered a promising system in enhancing the oral bioavailability of poorly water-soluble drugs; owing to their intrinsic ability to increase the solubility together with protecting the incorporated drugs from extensive metabolism. Objective Exploiting such properties, SLNs loaded with gliclazide (GLZ) were developed in an attempt to improve the oral bioavailability and the anti-diabetic action of GLZ, together with prolonging its duration of action for better glycemic control. Methods SLNs were prepared by ultra-sonication technique using glyceryl behenate (Compritol®888 ATO) as a lipid matrix and poloxamer 188 (PLX) as a stabilizer. A 2*3 asymmetrical factorial design was adopted to study the effect of different stabilizer concentrations at different sonication times on the shape, and size of the particles, PDI and drug loading. The selected optimum formulation was then freeze dried using trehalose di-hydrate as a cryo-protectant in different ratios with respect to glyceryl behenate concentration. After freeze drying, the formulation was tested for in-vitro drug release, pharmacokinetics, and pharmacodynamics. Safety of the selected formula was established after carrying out a subacute toxicity study. Results The factorial design experiment resulted in an optimum formulation coded 10F2 (150 mg PLX/10 min sonication). Scanning electron micrographs showed spherical particles with smooth surface, whereas a ratio of 2:1 cryo-protectant:lipid was found to be optimum with particle size of 245.9 ± 26.2 nm, polydispersity index of 0.482 ± 0.026, and biphasic in-vitro release with an initial burst effect, followed by a prolonged release phase. On the other hand, the selected SLNs exhibited prolonged drug release when compared with the GLZ commercial immediate release (IR) tablets (Diamicron®). Pharmacokinetics study showed about 5-fold increase in GLZ oral bioavailability loaded in SLNs when compared with raw GLZ powder. Pharmacodynamics study on a diabetic rat model confirmed the better anti-diabetic action of GLZ loaded SLNs when compared to raw GLZ powder. Subacute toxicity study indicated the safety of SLNs upon repetitive oral administration.
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Affiliation(s)
- Alaa Mohamed Nazief
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Passainte Saber Hassaan
- Department of Medical Physiology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Hoda Mahmoud Khalifa
- Department of Histology and Cell Biology, Faculty of Medicine, Alexandria University, Alexandria, Egypt
| | - Magda Samir Sokar
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
| | - Amal Hassan El-Kamel
- Department of Pharmaceutics, Faculty of Pharmacy, Alexandria University, Alexandria, Egypt
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Mohamed MS, Abdelhafez WA, Zayed G, Samy AM. In vitro and in vivo characterization of fast dissolving tablets containing gliquidone–pluronic solid dispersion. Drug Dev Ind Pharm 2019; 45:1973-1981. [DOI: 10.1080/03639045.2019.1689993] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Mohamed S. Mohamed
- Department of Pharmaceutics and Industrial Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Wael A. Abdelhafez
- Department of Pharmaceutics and Industrial Pharmacy, Al-Azhar University, Assiut, Egypt
| | - Gamal Zayed
- Department of Pharmaceutics and Industrial Pharmacy, Al-Azhar University, Assiut, Egypt
- Al-Azhar Centre of Nanosciences and Applications, Al-Azhar University, Assiut, Egypt
| | - Ahmed M. Samy
- Department of Pharmaceutics and Industrial Pharmacy, Al-Azhar University, Cairo, Egypt
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Ðanić M, Stanimirov B, Pavlović N, Vukmirović S, Lazić J, Al-Salami H, Mikov M. Transport and Biotransformation of Gliclazide and the Effect of Deoxycholic Acid in a Probiotic Bacteria Model. Front Pharmacol 2019; 10:1083. [PMID: 31607925 PMCID: PMC6771299 DOI: 10.3389/fphar.2019.01083] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2019] [Accepted: 08/26/2019] [Indexed: 01/04/2023] Open
Abstract
Introduction: Inter-individual differences in gut microflora composition may affect drug metabolism and overall therapeutic response. Gliclazide is a drug characterized by large inter-individual differences in therapeutic response; however, the causes of these differences are not fully explained and may be the outcome of microbial biotransformation. Recently, great attention has been paid to studies on bile acid (BA) interactions with gut microflora and the role of BAs in the modification of drug transport through biological membranes. The Aim: Considering the assumption of gliclazide–probiotic–BAs interactions, the aim of the study was to investigate the transport and biotransformation of gliclazide in probiotic bacteria, as well as the effects of deoxycholic acid (DCA) on gliclazide transport into bacterial cells. Materials and Methods: Probiotics were incubated with gliclazide with or without DCA for 24 h at 37°C. The intracellular and extracellular concentrations of gliclazide were determined at seven time points by high-performance liquid chromatography. Gliclazide biotransformation by the enzymatic activity of probiotic bacteria was examined using appropriate software packages. Results: During the 24 h incubation with probiotic bacteria, significantly lower extracellular concentrations of gliclazide were observed at all time points compared to controls, while in the group with DCA, the decrease in concentration was noticed only at 24 h. The total concentration of gliclazide throughout the whole period was significantly lower compared to control. Proposed pathways of gliclazide biotransformation by probiotic bacteria involve reactions of hydrolysis and hydroxylation. Conclusion: Based on the results obtained, it can be concluded that there are interactions of gliclazide–probiotics–DCA, at both the level of active and passive transport into the cells, and at the level of drug biotransformation by enzymatic activity of probiotic bacteria. The effect of these interactions on the final therapeutic response of gliclazide should be further studied and confirmed in in vivo conditions.
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Affiliation(s)
- Maja Ðanić
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Bojan Stanimirov
- Department of Biochemistry, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Nebojša Pavlović
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Saša Vukmirović
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Jelena Lazić
- Department of Pharmacy, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
| | - Hani Al-Salami
- Biotechnology and Drug Development Research Laboratory, School of Pharmacy and Biomedical Sciences, Curtin Health Innovation Research Institute, Curtin University, Perth, WA, Australia
| | - Momir Mikov
- Department of Pharmacology, Toxicology and Clinical Pharmacology, Faculty of Medicine, University of Novi Sad, Novi Sad, Serbia
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Adibkia K, Ghajar S, Osouli-Bostanabad K, Balaei N, Emami S, Barzegar-Jalali M. Novel Gliclazide Electrosprayed Nano-Solid Dispersions: Physicochemical Characterization and Dissolution Evaluation. Adv Pharm Bull 2019; 9:231-240. [PMID: 31380248 PMCID: PMC6664122 DOI: 10.15171/apb.2019.026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2018] [Revised: 01/11/2019] [Accepted: 04/14/2019] [Indexed: 11/18/2022] Open
Abstract
Purpose: In the current study, electrospraying was directed as a novel alternative approach to improve the physicochemical attributes of gliclazide (GLC), as a poorly water-soluble drug, by creating nanocrystalline/amorphous solid dispersions (ESSs).
Methods: ESSs were formulated using Eudragit® RS100 and polyethylene glycol (PEG) 6000 as polymeric carriers at various drug: polymer ratios (i.e. 1:5 and 1:10) with different total solution concentrations of 10, 15, and 20% w/v. Morphological, physicochemical, and in-vitro release characteristics of the developed formulations were assessed. Furthermore, GLC dissolution behaviors from ESSs were fitted to various models in order to realize the drug release mechanism.
Results: Field emission scanning electron microscopy analyses revealed that the size and morphology of the ESSs were affected by the drug: polymer ratios and solution concentrations. The polymer ratio augmentation led to increase in the particle size while the solution concentration enhancement yielded in a fiber establishment. Differential scanning calorimetry and powder X-ray diffraction investigations demonstrated that the ESSs were present in an amorphous state. Furthermore, the in vitro drug release studies depicted that the samples prepared employing PEG 6000 as carrier enhanced the dissolution rate and the model that appropriately fitted the release behavior of ESSs was Weibull model, where demonstrating a Fickian diffusion as the leading release mechanism. Fourier-transform infrared spectroscopy results showed a probability of complexation or hydrogen bonding, development between GLC and the polymers in the solid state.
Conclusion: Hence the electrospraying system avails the both nanosizing and amorphization advantages, therefore, it can be efficiently applied to formulating of ESSs of BCS Class II drugs.
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Affiliation(s)
- Khosro Adibkia
- Research Center for Pharmaceutical Nanotechnology and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Solmaz Ghajar
- Drug Applied Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Students Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Karim Osouli-Bostanabad
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran.,Students Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Niloufar Balaei
- Drug Applied Research Center and Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran.,Students Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shahram Emami
- Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
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Chinatangkul N, Tubtimsri S, Panchapornpon D, Akkaramongkolporn P, Limmatvapirat C, Limmatvapirat S. Design and characterisation of electrospun shellac-polyvinylpyrrolidone blended micro/nanofibres loaded with monolaurin for application in wound healing. Int J Pharm 2019; 562:258-270. [DOI: 10.1016/j.ijpharm.2019.03.048] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Revised: 03/15/2019] [Accepted: 03/22/2019] [Indexed: 11/24/2022]
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Aljohani M, MacFhionnghaile P, McArdle P, Erxleben A. Investigation of the formation of drug-drug cocrystals and coamorphous systems of the antidiabetic drug gliclazide. Int J Pharm 2019; 561:35-42. [DOI: 10.1016/j.ijpharm.2019.02.024] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2018] [Revised: 01/30/2019] [Accepted: 02/11/2019] [Indexed: 11/30/2022]
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15
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Jayaseelan C, Gandhi PR, Rajasree SRR, Suman TY, Mary RR. Toxicity studies of nanofabricated palladium against filariasis and malaria vectors. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:324-332. [PMID: 29034429 DOI: 10.1007/s11356-017-0428-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 10/05/2017] [Indexed: 06/07/2023]
Abstract
The present study was carried out to establish the biofabrication of palladium nanoparticles (PdNPs) using the plant leaf extract of Tinospora cordifolia Miers and its toxicity studies on the larvae of filariasis vector, Culex quinquefasciatus Say and malaria vector, Anopheles subpictus Grassi. The biofabricated PdNPs were characterized by using UV-visible spectrum, FTIR, XRD, FESEM, EDX and HRTEM. HRTEM confirmed the PdNPs were slightly agglomerated and spherical in shape and the average size was 16 nm. Gas chromatography and mass spectrometry analysis result revealed that the major constituent present in the T. cordifolia leaf extract is 2,4-di-tert-butylphenol (31.79%) whereas the minor compounds are 1-hexadecanol (7.97%), 1-octadecanol (7.70%), 1-eicosanol (6.85%), behenic alcohol (5.36%), 1-tetradecene (6.22%), cyclotetradecane (6.23%), 1-hexadecene (7.97%), 1-octadecene (7.70%), 1-eicosene (6.85%), and 1-docosene (5.36%). T. cordifolia leaf extract exhibited the larvicidal activity against the fourth instar larvae of C. quinquefasciatus and A. subpictus with the values of LC50 = 59.857 and 54.536 mg/L; LC90 = 113.445 and 108.940 mg/L, respectively. The highest toxicity was observed in the biofabricated PdNPs against the fourth instar larvae of C. quinquefasciatus and A. subpictus with the values of LC50 = 6.090 and 6.454 mg/L; LC90 = 13.689 and 13.849 mg/L, respectively. Concerning non-target effects, Poecilia reticulata were exposed to PdNPs for 24 h and did not exhibit any noticeable toxicity. Overall, our findings strongly suggest that PdNPs is a perfect ecological and inexpensive approach for the control of filariasis and malaria vectors.
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Affiliation(s)
| | - Pachiyappan Rajiv Gandhi
- Division of Nanobiotechnology, Department of Zoology, Auxilium College (Autonomous), Vellore, Tamil Nadu, 632006, India
| | | | | | - Rathinasamy Regina Mary
- Division of Nanobiotechnology, Department of Zoology, Auxilium College (Autonomous), Vellore, Tamil Nadu, 632006, India.
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Shokri J, Shamseddini Lori M, Monajjemzadeh F. Examining polyquaternium polymers deposition on human excised hair fibers. J Cosmet Dermatol 2017; 17:1225-1232. [DOI: 10.1111/jocd.12454] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/02/2017] [Indexed: 11/30/2022]
Affiliation(s)
- Javad Shokri
- Dermatology & Dermopharmacy Research Team (DDRT) Tabriz University of Medical Sciences Tabriz Iran
- Faculty of Pharmacy Tabriz University of Medical Sciences Tabriz Iran
| | | | - Farnaz Monajjemzadeh
- Faculty of Pharmacy Tabriz University of Medical Sciences Tabriz Iran
- Food and Drug Safety Research Center Tabriz University of Medical Sciences Tabriz Iran
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17
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Bruni G, Berbenni V, Maggi L, Mustarelli P, Friuli V, Ferrara C, Pardi F, Castagna F, Girella A, Milanese C, Marini A. Multicomponent crystals of gliclazide and tromethamine: preparation, physico-chemical, and pharmaceutical characterization . Drug Dev Ind Pharm 2017; 44:243-250. [PMID: 28956461 DOI: 10.1080/03639045.2017.1386208] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To improve the pharmaceutical behavior of the oral antidiabetic agent gliclazide through the synthesis of multicomponent crystals with tromethamine. METHODS Multicomponent crystals were prepared by solvent evaporation method, kneading, and combining mechanical and thermal activation. DSC, FT-IR spectroscopy, X-ray diffraction, SEM-EDS, and SSNMR were used to investigate their formation. Measurements of solubility and dissolution rate were carried out for the pharmaceutical characterization. RESULTS The formation of multicomponent crystals of gliclazide and tromethamine was confirmed by all the techniques. In particular, FT-IR and NMR measurements revealed that the interaction between drug and coformer leads to significant changes of the hydrogen bond scheme, and that almost all the functional groups of the two molecules are involved. The dissolution profile of the new phase is significantly better than that of both pure gliclazide and of the reference commercial product Diabrezide®. CONCLUSIONS The new system shows an improved pharmaceutical behavior and could be formulated in a dosage form to obtain a rapid and complete release of the drug available for absorption.
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Affiliation(s)
- Giovanna Bruni
- a C.S.G.I. - Department of Chemistry, Physical-Chemistry Section , University of Pavia , Pavia , Italy
| | - Vittorio Berbenni
- a C.S.G.I. - Department of Chemistry, Physical-Chemistry Section , University of Pavia , Pavia , Italy
| | - Lauretta Maggi
- b Department of Drug Sciences , University of Pavia , Pavia , Italy
| | - Piercarlo Mustarelli
- a C.S.G.I. - Department of Chemistry, Physical-Chemistry Section , University of Pavia , Pavia , Italy
| | - Valeria Friuli
- b Department of Drug Sciences , University of Pavia , Pavia , Italy
| | - Chiara Ferrara
- a C.S.G.I. - Department of Chemistry, Physical-Chemistry Section , University of Pavia , Pavia , Italy
| | - Francesca Pardi
- a C.S.G.I. - Department of Chemistry, Physical-Chemistry Section , University of Pavia , Pavia , Italy
| | - Federica Castagna
- a C.S.G.I. - Department of Chemistry, Physical-Chemistry Section , University of Pavia , Pavia , Italy
| | - Alessandro Girella
- a C.S.G.I. - Department of Chemistry, Physical-Chemistry Section , University of Pavia , Pavia , Italy
| | - Chiara Milanese
- a C.S.G.I. - Department of Chemistry, Physical-Chemistry Section , University of Pavia , Pavia , Italy
| | - Amedeo Marini
- a C.S.G.I. - Department of Chemistry, Physical-Chemistry Section , University of Pavia , Pavia , Italy
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Lu Z, Yang Y, Covington RA, Bi Y, Dürig T, Fassihi R. Amorphous-based controlled-release gliclazide matrix system. AAPS PharmSciTech 2017; 18:1699-1709. [PMID: 27714702 DOI: 10.1208/s12249-016-0642-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2016] [Accepted: 09/22/2016] [Indexed: 01/27/2023] Open
Abstract
The aim of this study was to develop a hydrophilic oral controlled release system (CRS) using the amorphous form of gliclazide, a BCS class II compound, listed on the WHO list of essential medicines. For this purpose, spray-dried dispersions (SDDs) of gliclazide were produced using various grades of hydroxypropyl methylcellulose acetate succinate (HPMCAS) or copovidone as carrier under fully automated conditions. The solid-state properties of prepared SDDs were characterized using X-ray powder diffraction (XRPD), scanning electron microscopy (SEM), modulated differential scanning calorimetry (MDSC), and Fourier transform infrared spectroscopy (FTIR). Supersaturated micro-dissolution testing of SDDs in fasted state-simulated intestinal fluid showed prolonged supersaturation state, with solubility increases of 1.5- to 4.0-fold. Solubility and stability characteristics of the most desirable SDDs in terms of relative dissolution area under the curves (AUCs) (AUC(SDD)/AUC(crystalline)) and stable supersaturated state concentration ratio up to 180 min (C180/Cmax) were determined. The optimized gliclazide-SDD amorphous forms were included into matrix tablets with HPMC blends using compaction simulator. Developed matrix systems were subjected to standard USP dissolution testing. Dissolution profiles obtained were linear with different slopes indicating varying rates of dissolution. Six-month storage stability testing was performed, and dissolution profiles remained stable with "similarity factor" (f 2 = 85). Results show that the use of various HPMCAS as a drug carrier in the spray-drying process produces homogeneous single-phase SDDs which are stable and promising for inclusion into HPMC-based hydrophilic matrix systems.
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Skripnik KKS, Riekes MK, Pezzini BR, Cardoso SG, Stulzer HK. Investigation of the Dissolution Profile of Gliclazide Modified-Release Tablets Using Different Apparatuses and Dissolution Conditions. AAPS PharmSciTech 2017; 18:1785-1794. [PMID: 27800567 DOI: 10.1208/s12249-016-0651-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 10/13/2016] [Indexed: 12/14/2022] Open
Abstract
In the absence of an official dissolution method for modified-release tablets of gliclazide, dissolution parameters, such as apparatuses (1, 2, and 3), rotation speeds, pH, and composition of the dissolution medium were investigated. The results show that although the drug presents a pH-mediated solubility (pH 7.0 > 6.8 > 6.4 > 6.0 > 5.5 > 4.5), the in vitro release of the studied tablets was not dependent on this parameter, despite of the apparatus tested. On the other hand, the rotation speed demonstrated a greater influence (100 rpm >50 rpm). Using similar hydrodynamic conditions, the three different apparatuses were compared in pH 6.8 and provided the following trend: apparatus 1 at 100 rpm >2 at 50 rpm ≈3 at 10 dpm. As a complete, but slow release is expected from modified-release formulations, apparatus 2, in phosphate buffer pH 6.8 and 100 rpm, were selected as the optimized dissolution method. In comparison to apparatus 1 under the same conditions, the paddle avoids the stickiness of formulation excipients at the mesh of the basket, which could prejudice the release of gliclazide. Results obtained with biorelevant medium through the developed dissolution method were similar to the buffer solution pH 6.8. The application of the optimized method as a quality control test between two different brands of gliclazide modified-release tablets showed that both dissolution profiles were considered similar by the similarity factor (f2 = 51.8). The investigation of these dissolution profiles indicated a dissolution kinetic following first-order model.
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Optimizing surfactant ratio for the production of capsules containing glicazide using solid dispersion technique. JOURNAL OF PHARMACEUTICAL RESEARCH 2017. [DOI: 10.33140/jpr.02.01.07] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The objective of this study was to formulate and prepare gliclazide capsule by solid dispersion method using different surfactants and their in vitro evaluation. Solubilising capacity of polyethylene glycol (PEG 6000, PEG 20000) and polyvinylpyrrolidone (PVP K 30) was determined at 2% concentration where gliclazide was used as a model drug and water was used as control for comparison. Results showed that PVP K 30 exhibited maximum solubilising capacity. Fusion method of solid dispersion was adopted for preparation of capsules using PEG 6000 & PEG 20000 in different ratios. Although these agents are claimed to be good surfactants but our results showed that, the highest cumulative drug release was 1.81 % for gliclazide and PEG 6000 in a ratio of 1:6. The flow property of capsule granules was determined by angle of repose. The capsules were also subjected to weight uniformity test, disintegration test and moisture permeation test and the chemical analysis of solid dispersions were done by FTIR. From this study, it can be concluded that it is possible to formulate and prepare gliclazide capsule by using solid dispersion method.
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Chella N, Daravath B, Kumar D, Tadikonda RR. Formulation and Pharmacokinetic Evaluation of Polymeric Dispersions Containing Valsartan. Eur J Drug Metab Pharmacokinet 2017; 41:517-26. [PMID: 26156887 DOI: 10.1007/s13318-015-0290-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
BACKGROUND Valsartan exhibits poor aqueous solubility and dissolution rate limited absorption. The lower solubility in the upper part of gastrointestinal tract (pH-dependant solubility) where its absorption window exists further contributes to the low oral bioavailability of valsartan. OBJECTIVE The present work was aimed to improve the in vivo pharmacokinetics of valsartan by preparing amorphous polymeric dispersions using Eudragit E 100 as carrier. Eudragit E 100 is a cationic polymer soluble in gastric fluid up to pH 5.0 and exhibits pH-dependent release. Hence, the dispersions prepared using Eudragit E 100 rapidly dissolves at lower pH presenting drug in molecularly dispersed and soluble form at its absorption site. METHODS Polymeric solid dispersions were prepared in different drug-to-carrier ratios. The prepared dispersions were evaluated for drug-carrier interactions, solid-state transitions and drug-release properties with the help of Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC) and in vitro dissolution studies. The optimized formulation containing valsartan was tested in rats for bioavailability and pharmacokinetic parameters and compared with that of valsartan pure drug. RESULTS The results from FTIR studies indicated no interactions between drug and excipients. DSC studies confirmed reduction in crystallinity of drug. The dissolution studies performed in 0.1 N HCl showed significant improvement (p < 0.05) in the dissolution of valsartan. In vivo pharmacokinetic studies showed 199 % relative bioavailability with significant improvement (p < 0.05) in area under the curve compared to valsartan pure drug. CONCLUSION Eudragit E 100 can be used to improve the dissolution of drugs that show low solubility at lower pH and thereby enhancing the bioavailability.
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Affiliation(s)
- Naveen Chella
- National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, 500037, India.,Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, Andhra Pradesh, 522510, India
| | - Bhaskar Daravath
- Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, Andhra Pradesh, 522510, India.,Department of Pharmaceutics, Sri Shivani College of Pharmacy, Warangal, Telangana, 506007, India
| | - Dinesh Kumar
- National Institute of Pharmaceutical Education and Research, Hyderabad, Telangana, 500037, India
| | - Rama Rao Tadikonda
- Department of Pharmaceutics, Avanthi Institute of Pharmaceutical Sciences, Gunthapally village, Hayath Nagar, Ranga Reddy (D), Hyderabad, Telangana, 501512, India.
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Arafa MF, El-Gizawy SA, Osman MA, El Maghraby GM. Xylitol as a potential co-crystal co-former for enhancing dissolution rate of felodipine: preparation and evaluation of sublingual tablets. Pharm Dev Technol 2016; 23:454-463. [PMID: 27681386 DOI: 10.1080/10837450.2016.1242625] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
Dissolution enhancement is a promising strategy for improving drug bioavailability. Co-crystallization of drugs with inert material can help in this direction. The benefit will become even greater if the inert material can form co-crystal while maintaining its main function as excipient. Accordingly, the objective of the current study was to investigate xylitol as a potential co-crystal co-former for felodipine with the goal of preparing felodipine sublingual tablets. Co-crystallization was achieved by wet co-grinding of the crystals deposited from methanolic solutions containing felodipine with increasing molar ratios of xylitol (1:1, 1:2 and 1:3). The developed co-crystals were characterized using Fourier transform infrared spectroscopy (FTIR), X-ray diffractometry (XRD), differential scanning calorimetry (DSC) and scanning electron microscopy (SEM) before monitoring drug dissolution. These results reflected the development of new crystalline species depending on the relative proportions of felodipine and xylitol with complete co-crystallization of felodipine being achieved in the presence of double its molar concentration of xylitol. This co-crystal formulation was compressed into sublingual tablet with ultrashort disintegration time with subsequent fast dissolution. Co-crystal formation was associated with enhanced dissolution with the optimum formulation producing the fastest dissolution rate. In conclusion, xylitol can be considered as a co-crystal co-former for enhanced dissolution rate of drugs.
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Affiliation(s)
- Mona F Arafa
- a Department of pharmaceutical technology , college of pharmacy, university of Tanta , Tanta , Egypt
| | - Sanaa A El-Gizawy
- a Department of pharmaceutical technology , college of pharmacy, university of Tanta , Tanta , Egypt
| | - Mohamed A Osman
- a Department of pharmaceutical technology , college of pharmacy, university of Tanta , Tanta , Egypt
| | - Gamal M El Maghraby
- a Department of pharmaceutical technology , college of pharmacy, university of Tanta , Tanta , Egypt
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Chadha R, Rani D, Goyal P. Novel cocrystals of gliclazide: characterization and evaluation. CrystEngComm 2016. [DOI: 10.1039/c5ce02402a] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Cocrystallization opens the door for the formulation and development of poorly soluble drugs. Exploiting this technique, novel cocrystals of gliclazide were formed, displaying a noteworthy improvement in solubility, IDR and efficacy in comparison to GL.
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Affiliation(s)
- Renu Chadha
- University Institute of Pharmaceutical Sciences
- Panjab University
- , India
| | - Dimpy Rani
- University Institute of Pharmaceutical Sciences
- Panjab University
- , India
| | - Parnika Goyal
- University Institute of Pharmaceutical Sciences
- Panjab University
- , India
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Sriamornsak P, Burapapadh K. Particle design of itraconazole by evaporative recrystallization for dissolution improvement. Chem Eng Res Des 2015. [DOI: 10.1016/j.cherd.2015.04.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Banerjee A, Verma PRP, Gore S. Controlled porosity solubility modulated osmotic pump tablets of gliclazide. AAPS PharmSciTech 2015; 16:554-68. [PMID: 25378281 PMCID: PMC4444634 DOI: 10.1208/s12249-014-0246-0] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2014] [Accepted: 10/23/2014] [Indexed: 11/30/2022] Open
Abstract
A system that can deliver drug at a controlled rate is very important for the treatment of various chronic diseases such as diabetes, asthma, and heart disease. Poorly water-soluble drug with pH-dependent solubility such as gliclazide (GLZ) offers challenges in the controlled-release formulation because of low dissolution rate and poor bioavailability. Solid dispersion (SD) of GLZ consisted of hydroxypropyl cellulose (HPC-SSL) as a polymeric solubilizer was manufactured by hot melt extrusion (HME) technology. Then, controlled porosity osmotic pump (CPOP) tablet of gliclazide was designed to deliver drug in a controlled manner up to 16 h. The developed formulation was optimized for type and level of pore former and coating weight gain. The optimized formulation was found to exhibit zero order kinetics independent of pH and agitation speed but depends on osmotic pressure of dissolution media indicated that mechanism of drug release was osmotic pressure. The in vivo performance prediction of developed formulation using convolution approach revealed that the developed formulation was superior to the existing marketed extended-release formulation in terms of attaining steady state plasma levels and indicated adequate exposure in translating hypoglycemic response. The prototype solubilization method combined with controlled porosity osmotic pump based technique could provide a unique way to increase dissolution rate and bioavailability of many poorly water-soluble, narrow therapeutic index drugs used in diabetes, cardiovascular diseases, etc.
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Affiliation(s)
- Arti Banerjee
- Mylan Laboratories Ltd, FDS, R&D Centre, Plot No. 31-34A, Anrich Industrial Estate, Bollaram, Jinnaram (Mandal), Medak District, 502325, Hyderabad, India,
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Maggi L, Canobbio A, Bruni G, Musitelli G, Conte U. Improvement of the dissolution behavior of gliclazide, a slightly soluble drug, using solid dispersions. J Drug Deliv Sci Technol 2015. [DOI: 10.1016/j.jddst.2015.01.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Mansour HF, F. Aly U. In vitroevaluation andin vivoperformance of lyophilized gliclazide. Drug Dev Ind Pharm 2014; 41:650-7. [DOI: 10.3109/03639045.2014.891131] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Makar RR, Latif R, Hosni EA, El Gazayerly ON. Optimization for glimepiride dissolution enhancement utilizing different carriers and techniques. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2013. [DOI: 10.1007/s40005-013-0061-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Jondhale S, Bhise S, Pore Y. Physicochemical investigations and stability studies of amorphous gliclazide. AAPS PharmSciTech 2012; 13:448-59. [PMID: 22382730 DOI: 10.1208/s12249-012-9760-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2011] [Accepted: 02/01/2012] [Indexed: 11/30/2022] Open
Abstract
Gliclazide (GLI), a poorly water-soluble antidiabetic, was transformed into a glassy state by melt quench technique in order to improve its physicochemical properties. Chemical stability of GLI during formation of glass was assessed by monitoring thin-layer chromatography, and an existence of amorphous form was confirmed by differential scanning calorimetry and X-ray powder diffractometry. The glass transition occurred at 67.5°C. The amorphous material thus generated was examined for its in vitro dissolution performance in phosphate buffer (pH 6.8). Surprisingly, amorphous GLI did not perform well and was unable to improve the dissolution characteristics compared to pure drug over entire period of dissolution studies. These unexpected results might be due to the formation of a cohesive supercooled liquid state and structural relaxation of amorphous form toward the supercooled liquid region which indicated functional inability of amorphous GLI from stability point of view. Hence, stabilization of amorphous GLI was attempted by elevation of T(g) via formation of solid dispersion systems involving comprehensive antiplasticizing as well as surface adsorption mechanisms. The binary and ternary amorphous dispersions prepared with polyvinylpyrrolidone K30 (as antiplasticizer for elevation of T (g)) and Aerosil 200® and/or Sylysia® 350 (as adsorbent) in the ratio of 1:1:1 (w/w) using kneading and spray-drying techniques demonstrated significant enhancement in rate and extent of dissolution of drug initially. During accelerated stability studies, ternary systems showed no significant reduction in drug dissolution performance over a period of 3 months indicating excellent stabilization of amorphous GLI.
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Yu M, Sun L, Li W, Lan Z, Li B, Tan L, Li M, Yang X. Investigation of structure and dissolution properties of a solid dispersion of lansoprazole in polyvinylpyrrolidone. J Mol Struct 2011. [DOI: 10.1016/j.molstruc.2011.08.019] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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