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Ali S, Aman A, Hengphasatporn K, Oopkaew L, Todee B, Fujiki R, Harada R, Shigeta Y, Krusong K, Choowongkomon K, Chavasiri W, Wolschann P, Mahalapbutr P, Rungrotmongkol T. Evaluating solubility, stability, and inclusion complexation of oxyresveratrol with various β-cyclodextrin derivatives using advanced computational techniques and experimental validation. Comput Biol Chem 2024; 112:108111. [PMID: 38879954 DOI: 10.1016/j.compbiolchem.2024.108111] [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: 01/24/2024] [Revised: 05/10/2024] [Accepted: 05/23/2024] [Indexed: 06/18/2024]
Abstract
Oxyresveratrol (OXY), a natural stilbenoid in mulberry fruits, is known for its diverse pharmacological properties. However, its clinical use is hindered by low water solubility and limited bioavailability. In the present study, the inclusion complexes of OXY with β-cyclodextrin (βCD) and its three analogs, dimethyl-β-cyclodextrin (DMβCD), hydroxypropyl-β-cyclodextrin (HPβCD) and sulfobutylether-β-cyclodextrin (SBEβCD), were investigated using in silico and in vitro studies. Molecular docking revealed two binding orientations of OXY, namely, 4',6'-dihydroxyphenyl (A-form) and 5,7-benzenediol ring (B-form). Molecular Dynamics simulations suggested the formation of inclusion complexes with βCDs through two distinct orientations, with OXY/SBEβCD exhibiting maximum atom contacts and the lowest solvent-exposed area in the hydrophobic cavity. These results corresponded well with the highest binding affinity observed in OXY/SBEβCD when assessed using the MM/GBSA method. Beyond traditional simulation methods, Ligand-binding Parallel Cascade Selection Molecular Dynamics method was employed to investigate how the drug enters and accommodates within the hydrophobic cavity. The in silico results aligned with stability constants: SBEβCD (2060 M-1), HPβCD (1860 M-1), DMβCD (1700 M-1), and βCD (1420 M-1). All complexes exhibited a 1:1 binding mode (AL type), with SBEβCD enhancing OXY solubility (25-fold). SEM micrographs, DSC thermograms, FT-IR and 1H NMR spectra confirm the inclusion complex formation, revealing novel surface morphologies, distinctive thermal behaviors, and new peaks. Notably, the inhibitory impact on the proliferation of breast cancer cell lines, MCF-7, exhibited by inclusion complexes particularly OXY/DMβCD, OXY/HPβCD, and OXY/SBEβCD were markedly superior compared to that of OXY alone.
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Affiliation(s)
- Saba Ali
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Aamir Aman
- Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kowit Hengphasatporn
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Lipika Oopkaew
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Bunyaporn Todee
- Department of Chemistry, Faculty of Science, Mahidol University, Rama VI Rd, Bangkok 10400, Thailand
| | - Ryo Fujiki
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Ryuhei Harada
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Yasuteru Shigeta
- Center for Computational Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8577, Japan
| | - Kuakarun Krusong
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kiattawee Choowongkomon
- Department of Biochemistry, Faculty of Science, Kasetsart University, Bangkok 10900, Thailand
| | - Warinthorn Chavasiri
- Center of Excellence in Natural Products Chemistry, Department of Chemistry, Faculty of Science, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
| | - Peter Wolschann
- Institute of Theoretical Chemistry, University of Vienna, Vienna 1090, Austria
| | - Panupong Mahalapbutr
- Department of Biochemistry, Center for Translational Medicine, Faculty of Medicine, Khon Kaen University, Khon Kaen 40002, Thailand.
| | - Thanyada Rungrotmongkol
- Center of Excellence in Structural and Computational Biology, Department of Biochemistry, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand; Program in Bioinformatics and Computational Biology, Graduate School, Chulalongkorn University, Bangkok 10330, Thailand.
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Abdellatif AAH, Ahmed F, Mohammed AM, Alsharidah M, Al-Subaiyel A, Samman WA, Alhaddad AA, Al-Mijalli SH, Amin MA, Barakat H, Osman SK. Recent Advances in the Pharmaceutical and Biomedical Applications of Cyclodextrin-Capped Gold Nanoparticles. Int J Nanomedicine 2023; 18:3247-3281. [PMID: 37337575 PMCID: PMC10277008 DOI: 10.2147/ijn.s405964] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Accepted: 05/31/2023] [Indexed: 06/21/2023] Open
Abstract
The real problem in pharmaceutical preparation is drugs' poor aqueous solubility, low permeability through biological membranes, and short biological t1/2. Conventional drug delivery systems are not able to overcome these problems. However, cyclodextrins (CDs) and their derivatives can solve these challenges. This article aims to summarize and review the history, properties, and different applications of cyclodextrins, especially the ability of inclusion complex formation. It also refers to the effects of cyclodextrin on drug solubility, bioavailability, and stability. Moreover, it focuses on preparing and applying gold nanoparticles (AuNPs) as novel drug delivery systems. It also studies the uses and effects of cyclodextrins in this field as novel drug carriers and targeting devices. The system formulated from AuNPs linked with CD molecules combines the advantages of both CD and AuNPs. Cyclodextrins benefit in increasing aqueous drug solubility, loading capacity, stability, and size control of gold NPs. Also, AuNPs are applied as diagnostic and therapeutic agents because of their unique chemical properties. Plus, AuNPs possess several advantages such as ease of detection, targeted and selective drug delivery, greater surface area, high loading efficiency, and higher stability than microparticles. In the present article, we tried to present the potential pharmaceutical applications of CD-derived AuNPs in biomedical applications including antibacterial, anticancer, gene-drug delivery, and various targeted drug delivery applications. Also, the article highlighted the role of CDs in the preparation and improvement of catalytic enzymes, the formation of self-assembling molecular print boards, the fabrication of supramolecular functionalized electrodes, and biosensors formation.
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Affiliation(s)
- Ahmed A H Abdellatif
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Qassim, 51452, Saudi Arabia
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
| | - Fatma Ahmed
- Department of Zoology, Faculty of Science, Sohag University, Sohag, 82524, Egypt
| | - Ahmed M Mohammed
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
| | - Mansour Alsharidah
- Department of Physiology, College of Medicine, Qassim University, Buraydah, 51452, Saudi Arabia
| | - Amal Al-Subaiyel
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Qassim, 51452, Saudi Arabia
| | - Waad A Samman
- Department of Pharmacology and Toxicology, College of Pharmacy, Taibah University, Medina, 42353, Saudi Arabia
| | - Aisha A Alhaddad
- Department of Pharmacology and Toxicology, College of Pharmacy, Taibah University, Medina, 42353, Saudi Arabia
| | - Samiah Hamad Al-Mijalli
- Department of Biology, College of Sciences, Princess Nourah Bint Abdulrahman University, Riyadh, 11671, Saudi Arabia
| | - Mohammed A Amin
- Department of Pharmaceutics, College of Pharmacy, Qassim University, Qassim, 51452, Saudi Arabia
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
| | - Hassan Barakat
- Department of Food Science and Human Nutrition, College of Agriculture and Veterinary Medicine, Qassim University, Buraydah, 51452, Saudi Arabia
- Food Technology Department, Faculty of Agriculture, Benha University, Moshtohor, 13736, Egypt
| | - Shaaban K Osman
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Al-Azhar University, Assiut, 71524, Egypt
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Gala UH, Miller DA, Su Y, Spangenberg A, Williams ROB. The effect of drug loading on the properties of abiraterone-hydroxypropyl beta cyclodextrin solid dispersions processed by solvent free KinetiSol® technology. Eur J Pharm Biopharm 2021; 165:52-65. [PMID: 33979662 DOI: 10.1016/j.ejpb.2021.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Revised: 04/27/2021] [Accepted: 05/02/2021] [Indexed: 10/21/2022]
Abstract
Abiraterone is a poorly water-soluble drug used in the treatment of prostate cancer. In our previous study, we reported that KinetiSol® processed solid dispersions (KSDs) based on hydroxypropyl β-cyclodextrin (HPBCD) showed improved dissolution and pharmacokinetics of abiraterone. However, the nature of abiraterone-HPBCD interaction within the KSDs or the effect of drug loading on the physicochemical properties and in vivo performance of HPBCD-based KSDs remain largely unknown. We hypothesize that KinetiSol technology can prepare abiraterone-HPBCD complexes within KSDs and that increasing the drug loading beyond an optimal point reduces the in vitro and in vivo performance of these KSDs. To confirm our hypothesis, we developed KSDs with 10-50% w/w drug loading and analyzed them using X-ray diffractometry and modulated differential scanning calorimetry. We found that KSDs containing 10-30% drug were amorphous. Interestingly, two-dimensional solid-state nuclear magnetic resonance and Raman spectroscopy indicated that the abiraterone-HPBCD complexes were formed. At elevated temperatures, the 10% and 20% drug-loaded KSDs were physically stable, while the 30% drug-loaded KSD showed recrystallization of abiraterone. In vitro dissolution and in vivo pharmacokinetic performances improved as the drug loading decreased; we attribute this to increased noncovalent interactions between abiraterone and HPBCD at lower drug loadings. Overall, the 10% drug loaded KSD showed a dissolution enhancement of 15.7-fold compared to crystalline abiraterone, and bioavailability enhancement of 3.9-fold compared to the commercial abiraterone acetate tablet Zytiga®. This study is first to confirm that KinetiSol, a high-energy, solvent-free technology, is capable of forming abiraterone-HPBCD complexes. Furthermore, in terms of in vitro and in vivo performance, a 10% drug load is optimal.
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Affiliation(s)
- Urvi H Gala
- DisperSol Technologies LLC, 111 W. Cooperative Way, Building 3, Suite 300, Georgetown, TX 78626, United States.
| | - Dave A Miller
- DisperSol Technologies LLC, 111 W. Cooperative Way, Building 3, Suite 300, Georgetown, TX 78626, United States.
| | - Yongchao Su
- Merck & Co. Inc., 90 E Scott Ave, Rahway, NJ 07065, United States.
| | - Angela Spangenberg
- DisperSol Technologies LLC, 111 W. Cooperative Way, Building 3, Suite 300, Georgetown, TX 78626, United States.
| | - Robert O Bill Williams
- The University of Texas at Austin, College of Pharmacy, 2409 West University Avenue, PHR 4.214, Austin, TX 78712, United States.
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Boakye‐Yiadom KO, Kesse S, Aquib M, Filli MS, Farooq MA, Wang B. Solid dispersion systems engineered from
hydroxypropyl‐β‐cyclodextrin
and
water‐soluble
polymers for enhanced oral bioavailability of nimodipine. POLYM ADVAN TECHNOL 2020. [DOI: 10.1002/pat.4947] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kofi Oti Boakye‐Yiadom
- School of PharmacyShanghai Jiao Tong University Shanghai China
- Department of Pharmaceutics, School of PharmacyChina Pharmaceutical University Nanjing China
| | - Samuel Kesse
- Department of Pharmaceutics, School of PharmacyChina Pharmaceutical University Nanjing China
| | - Md Aquib
- Department of Pharmaceutics, School of PharmacyChina Pharmaceutical University Nanjing China
| | - Mensura Sied Filli
- Department of Pharmaceutics, School of PharmacyChina Pharmaceutical University Nanjing China
| | - Muhammad Asim Farooq
- Department of Pharmaceutics, School of PharmacyChina Pharmaceutical University Nanjing China
| | - Bo Wang
- Department of Pharmaceutics, School of PharmacyChina Pharmaceutical University Nanjing China
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Mandpe P, Prabhakar B, Shende P. 23 Full factorial design for optimization of stable amorphous host–guest-based mirabegron complex for extended-release action. J INCL PHENOM MACRO 2019. [DOI: 10.1007/s10847-019-00955-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Cova TF, Milne BF, Pais AA. Host flexibility and space filling in supramolecular complexation of cyclodextrins: A free-energy-oriented approach. Carbohydr Polym 2019; 205:42-54. [DOI: 10.1016/j.carbpol.2018.10.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2018] [Revised: 10/03/2018] [Accepted: 10/03/2018] [Indexed: 12/20/2022]
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Gao S, Bie C, Ji Q, Ling H, Li C, Fu Y, Zhao L, Ye F. Preparation and characterization of cyanazine–hydroxypropyl-beta-cyclodextrin inclusion complex. RSC Adv 2019; 9:26109-26115. [PMID: 35531000 PMCID: PMC9070368 DOI: 10.1039/c9ra04448e] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Accepted: 08/14/2019] [Indexed: 11/21/2022] Open
Abstract
Due to its poor water solubility, the herbicide cyanazine is usually dissolved in organic reagents when used, which poses a great threat to the environment. Poor water solubility also causes limited herbicidal activity. In our study, the water solubility of cyanazine was increased by forming a cyanazine/hydroxypropyl beta-cyclodextrin (HPβCD) inclusion complex. The formation of the inclusion complex was confirmed by FT-IR, XRD, SEM and other characterization methods. Phase solubility study showed that HPβCD could improve the water solubility of cyanazine. Thermogravimetric analysis indicated that the thermal stability of cyanazine was improved by forming inclusion complex and the biological activity test showed that better herbicidal activity was obtained on the inclusion complex compared with the cyanazine. The results showed that the formation of inclusion complex could improve the application of cyanazine in agricultural production and reduce the risk to the environment. Cyanazine/HPβCD inclusion complex was prepared to improve water solubility and thermal stability and herbicidal activity of cyanazine.![]()
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Affiliation(s)
- Shuang Gao
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Chao Bie
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Qiuyu Ji
- School of Life Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Haiyang Ling
- School of Life Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Chunyan Li
- College of Resources and Environment
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Ying Fu
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Lixia Zhao
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
| | - Fei Ye
- Department of Applied Chemistry
- College of Science
- Northeast Agricultural University
- Harbin
- P. R. China
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8
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Functional Supramolecular of Inclusion Complex of Herbicide Fluroxypyr with HPβCD. Polymers (Basel) 2018; 10:polym10121294. [PMID: 30961219 PMCID: PMC6401906 DOI: 10.3390/polym10121294] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 11/17/2018] [Accepted: 11/20/2018] [Indexed: 11/16/2022] Open
Abstract
In this study, hydroxypropyl-β-cyclodextrin (HPβCD) was used to form an inclusion complex with fluroxypyr to enhance water solubility and thermal stability. The inclusion complex was prepared by a saturated solution method and characterized by FT-IR, SEM, TGA, and XRD. All results indicated that fluroxypyr successfully entered the HPβCD cavity. In addition, the study of phase solubility identifies that the water solubility of fluroxypyr was greatly improved after the formation of the inclusion complex, and TGA analysis suggested that the formation of the inclusion complex improved the thermal stability. Bioactivity assay tests showed that the inclusion complex still had strong herbicidal activity. Our research showed that HPβCD was a promising carrier for improving the properties of fluroxypyr and, thus, expanding its use in agrochemical formulations.
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Zoghbi A, Geng T, Wang B. Dual Activity of Hydroxypropyl-β-Cyclodextrin and Water-Soluble Carriers on the Solubility of Carvedilol. AAPS PharmSciTech 2017; 18:2927-2935. [PMID: 28432614 DOI: 10.1208/s12249-017-0769-2] [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: 11/10/2016] [Accepted: 03/22/2017] [Indexed: 11/30/2022] Open
Abstract
Carvedilol (CAR) is a non-selective α and β blocker categorized as class II drug with low water solubility. Several recent studies have investigated ways to overcome this problem. The aim of the present study was to combine two of these methods: the inclusion complex using hydroxypropyl-β-cyclodextrin (HPβCD) with solid dispersion using two carriers: Poloxamer 188 (PLX) and Polyvinylpyrrolidone K-30 (PVP) to enhance the solubility, bioavailability, and the stability of CAR. Kneading method was used to prepare CAR-HPβCD inclusion complex (KD). The action of different carriers separately and in combination on Carvedilol solubility was investigated in three series. CAR-carrier and KD-carrier solid dispersions were prepared by solvent evaporation method. In vitro dissolution test was conducted in three different media: double-distilled water (DDW), simulative gastric fluid (SGF), and PBS pH 6.8 (PBS). The interactions between CAR, HPβCD, and different carriers were explored by Fourier transform infrared spectroscopy (FTIR), powder X-ray diffractometry (XRD), and differential scanning colorimetry (DSC). The results showed higher solubility of CAR in KD-PVP solid dispersions up to 70, 25, and 22 fold compared to pure CAR in DDW, SGF, and PBS, respectively. DSC and XRD analyses indicated an improved degree of transformation of CAR in KD-PVP solid dispersion from crystalline to amorphous state. This study provides a new successful combination of two polymers with the dual action of HPβCD and PLX/PVP on water solubility and bioavailability of CAR.
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Mura P. Analytical techniques for characterization of cyclodextrin complexes in the solid state: A review. J Pharm Biomed Anal 2015; 113:226-38. [PMID: 25743620 DOI: 10.1016/j.jpba.2015.01.058] [Citation(s) in RCA: 177] [Impact Index Per Article: 19.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Accepted: 01/30/2015] [Indexed: 01/09/2023]
Abstract
Cyclodextrins are cyclic oligosaccharides able to form inclusion complexes with a variety of hydrophobic guest molecules, positively modifying their physicochemical properties. A thorough analytical characterization of cyclodextrin complexes is of fundamental importance to provide an adequate support in selection of the most suitable cyclodextrin for each guest molecule, and also in view of possible future patenting and marketing of drug-cyclodextrin formulations. The demonstration of the actual formation of a drug-cyclodextrin inclusion complex in solution does not guarantee its existence also in the solid state. Moreover, the technique used to prepare the solid complex can strongly influence the properties of the final product. Therefore, an appropriate characterization of the drug-cyclodextrin solid systems obtained has also a key role in driving in the choice of the most effective preparation method, able to maximize host-guest interactions. The analytical characterization of drug-cyclodextrin solid systems and the assessment of the actual inclusion complex formation is not a simple task and involves the combined use of several analytical techniques, whose results have to be evaluated together. The objective of the present review is to present a general prospect of the principal analytical techniques which can be employed for a suitable characterization of drug-cyclodextrin systems in the solid state, evidencing their respective potential advantages and limits. The applications of each examined technique are described and discussed by pertinent examples from literature.
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Affiliation(s)
- Paola Mura
- Department of Chemistry, School of Human Health Sciences, University of Florence, Via Schiff 6, Sesto Fiorentino, I-50019 Florence, Italy.
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Desai C, Prabhakar B. Development and evaluation of orally disintegrating tablets of cilostazol-β-cyclodextrin inclusion complexes. Drug Dev Ind Pharm 2014; 41:1589-607. [DOI: 10.3109/03639045.2014.972413] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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12
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Nano-amorphous composites of cilostazol–HP-β-CD inclusion complexes: physicochemical characterization, structure elucidation, thermodynamic studies and in vitro evaluation. J INCL PHENOM MACRO 2014. [DOI: 10.1007/s10847-014-0447-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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13
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Williams HD, Trevaskis NL, Charman SA, Shanker RM, Charman WN, Pouton CW, Porter CJH. Strategies to address low drug solubility in discovery and development. Pharmacol Rev 2013; 65:315-499. [PMID: 23383426 DOI: 10.1124/pr.112.005660] [Citation(s) in RCA: 1003] [Impact Index Per Article: 91.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Drugs with low water solubility are predisposed to low and variable oral bioavailability and, therefore, to variability in clinical response. Despite significant efforts to "design in" acceptable developability properties (including aqueous solubility) during lead optimization, approximately 40% of currently marketed compounds and most current drug development candidates remain poorly water-soluble. The fact that so many drug candidates of this type are advanced into development and clinical assessment is testament to an increasingly sophisticated understanding of the approaches that can be taken to promote apparent solubility in the gastrointestinal tract and to support drug exposure after oral administration. Here we provide a detailed commentary on the major challenges to the progression of a poorly water-soluble lead or development candidate and review the approaches and strategies that can be taken to facilitate compound progression. In particular, we address the fundamental principles that underpin the use of strategies, including pH adjustment and salt-form selection, polymorphs, cocrystals, cosolvents, surfactants, cyclodextrins, particle size reduction, amorphous solid dispersions, and lipid-based formulations. In each case, the theoretical basis for utility is described along with a detailed review of recent advances in the field. The article provides an integrated and contemporary discussion of current approaches to solubility and dissolution enhancement but has been deliberately structured as a series of stand-alone sections to allow also directed access to a specific technology (e.g., solid dispersions, lipid-based formulations, or salt forms) where required.
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Affiliation(s)
- Hywel D Williams
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Parkville, Victoria, Australia
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In Vitro and In Vivo Evaluation of Oxatomide β -Cyclodextrin Inclusion Complex. JOURNAL OF PHARMACEUTICS 2013; 2013:629593. [PMID: 26555988 PMCID: PMC4595936 DOI: 10.1155/2013/629593] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/08/2012] [Revised: 11/03/2012] [Accepted: 11/05/2012] [Indexed: 11/19/2022]
Abstract
The objective of this study was to evaluate the influence of oxatomide β-cyclodextrin inclusion complex on the physicochemical properties and bioavailability of the drug. Oxatomide β-cyclodextrin solid complex was prepared with equimolar ratio of both oxatomide and β-cyclodextrin in presence or absence of water soluble polymers using different techniques. The coevaporated complex prepared in presence of PVP-K15 showed a prompt drug release and significantly increased % dissolution efficiency (P < 0.05) compared to the pure oxatomide. Moreover, the results of bioavailability evaluation of this complex in rabbits compared to commercial drug product indicated a 73.15% increase in the oral bioavailability of oxatomide. In conclusion, inclusion complex of oxatomide with β-cyclodextrin prepared by coevaporation in presence of PVP-K15 not only results in an enhancement of the oxatomide dissolution rate but also improves the bioavailability of oxatomide.
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15
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Potential of ordered mesoporous silica for oral delivery of poorly soluble drugs. Ther Deliv 2012; 2:1079-91. [PMID: 22833866 DOI: 10.4155/tde.11.66] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
The use of ordered mesoporous silica is one of the more recent and rapidly developing formulation techniques for enhancing the solubility of poorly water-soluble drugs. Their large surface area and pore volume make ordered mesoporous silica materials excellent candidates for efficient drug loading and rapid release. While this new approach offers many promising advantages, further research is still necessary to elucidate the molecular mechanisms and to improve our scientific insight into the behavior of this system. In this review, the significant developments to date are presented and research challenges highlighted. Aspects of downstream processability are discussed in view of their special bulk powder properties and unique pore architecture. Lastly, perspectives for successful oral dosage form development are presented.
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Ammar HO, Ghorab M, Mostafa DM, Makram TS, Ali RM. Host–guest system of etodolac in native and modified β-cyclodextrins: preparation and physicochemical characterization. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0223-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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17
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Vyas A. Preparation, characterization and pharmacodynamic activity of supramolecular and colloidal systems of rosuvastatin–cyclodextrin complexes. J INCL PHENOM MACRO 2012. [DOI: 10.1007/s10847-012-0170-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Xie J, Yang F, Shi X, Zhu X, Su W, Wang P. Improvement in solubility and bioavailability of puerarin by mechanochemical preparation. Drug Dev Ind Pharm 2012; 39:826-35. [DOI: 10.3109/03639045.2012.664147] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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19
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Singh SK, Srinivasan KK, Singare DS, Gowthamarajan K, Prakash D. Formulation of ternary complexes of glyburide with hydroxypropyl-β-cyclodextrin and other solubilizing agents and their effect on release behavior of glyburide in aqueous and buffered media at different agitation speeds. Drug Dev Ind Pharm 2012; 38:1328-36. [DOI: 10.3109/03639045.2011.650645] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Ali AA, Sayed OM. Preparation and characterization of mosapride citrate inclusion complexes with natural and synthetic cyclodextrins. Pharm Dev Technol 2011; 18:1042-50. [PMID: 22206481 DOI: 10.3109/10837450.2011.646425] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
The aim of this work was to investigate the inclusion complexes between mosapride citrate and SBE7β-CD in comparison with the natural β-CD to enhance its bioavailability by improving the solubility and dissolution rate. The complexation efficiency value of SBE7β-CD was higher than that for β-CD. Solid binary systems of mosapride citrate with CDs were prepared by physical mixing, kneading and freeze-drying techniques at molar ratio of 1:1(drug:CD). Physicochemical characterization of the prepared systems was studied using X-ray diffractometry, differential scanning calorimetry, Fourier-transform infrared spectroscopy and scanning electron microscopy (SEM). Amorphous drug was detectable to large extent in inclusion complexes prepared using the freeze-drying technique. From the dissolution study of different inclusion complexes in simulated saliva solution (pH 6.8), we could concluded that irrespective of the preparation technique, the systems prepared using SBE7β-CD showed better performance than the corresponding ones prepared using β-CD. In addition, the freeze-drying technique showed superior dissolution enhancement than other methods especially when combined with the SBE7β-CD.
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Affiliation(s)
- Adel A Ali
- Department of Pharmaceutics and industrial pharmacy, Faculty of Pharmacy, Beni Suef University, Beni Suef, Egypt.
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ZHOU R, WANG F, GUO Z, ZHAO Y. PREPARATION AND CHARACTERIZATION OF RESVERATROL/HYDROXYPROPYL-β-CYCLODEXTRIN INCLUSION COMPLEX USING SUPERCRITICAL ANTISOLVENT TECHNOLOGY. J FOOD PROCESS ENG 2011. [DOI: 10.1111/j.1745-4530.2010.00617.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Halim Mohamed MA, Mahmoud AA. Formulation of Indomethacin Eye Drops via Complexation with Cyclodextrins. Curr Eye Res 2011; 36:208-16. [DOI: 10.3109/02713683.2010.536294] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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23
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Hussein AK, Ibrahim MA, Amin MA, Ahmed OA. Improved in vitro dissolution parameters and in vivo hypolipidimic efficiency of atorvastatin calcium through the formation of hydrophilic inclusion complex with cyclodextrins. Drug Dev Res 2011. [DOI: 10.1002/ddr.20439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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Kim YT, Shin BK, Garripelli VK, Kim JK, Davaa E, Jo S, Park JS. A thermosensitive vaginal gel formulation with HPγCD for the pH-dependent release and solubilization of amphotericin B. Eur J Pharm Sci 2010; 41:399-406. [DOI: 10.1016/j.ejps.2010.07.009] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2010] [Revised: 06/11/2010] [Accepted: 07/14/2010] [Indexed: 10/19/2022]
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26
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Inter-molecular physiochemical characterization for etodolac-hydroxypropyl-β-cyclodextrin polymeric systems in solid and liquid state. OPEN CHEM 2010. [DOI: 10.2478/s11532-010-0066-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
AbstractThe purpose of this study was to explore the utility of hydroxypropyl-β-cyclodextrin (HP-β-CD) systems in forming inclusion complexes with the anti-rheumatic or anti-arthritic drug, etodolac (EDC), in order to overcome the limitation of its poor aqueous solubility. This inclusion system achieved high solubility for the hydrophobic molecule. The physical and chemical properties of each inclusion compound were investigated. Complexes of EDC with HP-β-CD were obtained using the kneading and co-evaporation techniques. Solid state characterization of the products was carried out using Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), powder X-ray diffraction (XRD) and Scanning electron microscopy (SEM). Studies in the solution state were performed using UV-Vis spectrophotometry and 1H-NMR spectroscopy. Phase solubility profiles with HP-β-CD employed was found to be AL type. Stability constants (Kc) from the phase solubility diagrams were calculated indicating the formation of 1:1 inclusion complex. Stability studies in the solid state and in liquid state were performed; the possible degradation by RP-HPLC was monitored. The dissolution studies revealed that EDC dissolution rate was improved by the formation of inclusion complexes.
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Physical chemical characterization of binary systems of prilocaine hydrochloride with triacetyl-β-cyclodextrin. J INCL PHENOM MACRO 2010. [DOI: 10.1007/s10847-010-9807-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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28
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Phillip Lee YH, Sathigari S, Jean Lin YJ, Ravis WR, Chadha G, Parsons DL, Rangari VK, Wright N, Babu RJ. Gefitinib-cyclodextrin inclusion complexes: physico-chemical characterization and dissolution studies. Drug Dev Ind Pharm 2010; 35:1113-20. [PMID: 19640249 DOI: 10.1080/03639040902783074] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
BACKGROUND Gefitinib, an anticancer drug, has an extremely low aqueous solubility, and its oral absorption is limited by its dissolution rate. The solubility and dissolution of gefitinib can be improved by complexation with cyclodextrins (CDs). METHODS Phase solubility studies of gefitinib with hydroxypropyl betaCD (HPbetaCD) and randomly methylated betaCD (RMbetaCD) in n various aqueous systems was conducted to characterize the complexes in the liquid state. The inclusion complexes in the solid state were prepared by freeze-drying method and characterized by X-ray diffractometry (X-RD) and differential scanning calorimetry (DSC). RESULTS Gefitinib formed stable complexes with HPbetaCD and RMbetaCD in distilled water as indicated by the association rate constants (Ks) of 458.9 and 1096.2 M(-1) for HPbetaCD and RMbetaCD, respectively. The complexation of gefitinib with CDs in pH 4.5 acetate buffer indicated an A(N) type of phase-solubility diagrams, whereas gefitinib and HPbetaCD in distilled water in the presence of polymers such as polyvinyl pyrrolidone K-30 (PVP) or hydroxypropyl methylcellulose E3 (HPMC) resulted in A(P)-type phase-solubility diagrams. The solid-state amorphous complexes (as described by DSC and X-RD) showed substantial increases in the solubility and dissolution rate of gefitinib with both CDs. Further increases in the solubility and dissolution rate of the gefitinib-HPbetaCD freeze-dried complex were obtained by physically mixing the complex with PVP and HPMC. CONCLUSION Gefitinib formed stable inclusion complexes with HPbetaCD and RMbetaCD, and the solubility and dissolution rate of the drug was significantly increased.
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Affiliation(s)
- Y-H Phillip Lee
- Department of Pharmacal Sciences, Harrison School of Pharmacy, Auburn University, Auburn, AL, USA
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29
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Enhancing the dissolution of hydrophobic guests using solid state inclusion complexation: characterization and in vitro evaluation. J INCL PHENOM MACRO 2009. [DOI: 10.1007/s10847-009-9655-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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Sun Y, Xu L, Xu P, Ma B. Preparation of Levodopa-2, 6-Dimethyl-β-Cyclodextrin Inclusion by Saturation Solution Process. ACTA ACUST UNITED AC 2009; 36:352-9. [DOI: 10.1080/10731190802239032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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31
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Higashi T, Nishimura K, Yoshimatsu A, Ikeda H, Arima K, Motoyama K, Hirayama F, Uekama K, Arima H. Preparation of Four Types of Coenzyme Q10/.GAMMA.-Cyclodextrin Supramolecular Complexes and Comparison of Their Pharmaceutical Properties. Chem Pharm Bull (Tokyo) 2009; 57:965-70. [DOI: 10.1248/cpb.57.965] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Taishi Higashi
- Graduate School of Pharmaceutical Sciences, Kumamoto University
| | | | | | - Haruna Ikeda
- Graduate School of Pharmaceutical Sciences, Kumamoto University
| | - Kanako Arima
- Graduate School of Pharmaceutical Sciences, Kumamoto University
| | | | | | | | - Hidetoshi Arima
- Graduate School of Pharmaceutical Sciences, Kumamoto University
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32
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Hirlekar R, Kadam V. Preparation and characterization of inclusion complexes of carvedilol with methyl-β-cyclodextrin. J INCL PHENOM MACRO 2008. [DOI: 10.1007/s10847-008-9506-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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33
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Orgoványi J, Oláh E, H-Otta K, Fenyvesi É. Dissolution properties of cypermethrin/cyclodextrin complexes. J INCL PHENOM MACRO 2008. [DOI: 10.1007/s10847-008-9488-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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34
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Comparative study of oxaprozin complexation with natural and chemically-modified cyclodextrins in solution and in the solid state. J INCL PHENOM MACRO 2008. [DOI: 10.1007/s10847-008-9484-7] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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35
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Inclusion complexes of tadalafil with natural and chemically modified beta-cyclodextrins. I: preparation and in-vitro evaluation. Eur J Pharm Biopharm 2008; 70:819-27. [PMID: 18655829 DOI: 10.1016/j.ejpb.2008.06.024] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2008] [Revised: 06/12/2008] [Accepted: 06/13/2008] [Indexed: 11/23/2022]
Abstract
The aim of this work was to investigate the inclusion complexation between tadalafil, a practically insoluble selective phosphodiesterase-5 inhibitor (PDE5), and two chemically modified beta-cyclodextrins: hydroxypropyl-beta-cyclodextrin (HP-beta-CD) and heptakis-[2,6-di-O-methyl]-beta-cyclodextrin (DM-beta-CD), in comparison with the natural beta-cyclodextrin (beta-CD) in order to improve the solubility and the dissolution rate of the drug in an attempt to enhance its bioavailability. Inclusion complexation was investigated in both the solution and the solid state. The UV spectral shift method indicated guest-host complex formation between tadalafil and the three cyclodextrins (CDs). The phase solubility profiles with all the used CDs were classified as A(p)-type, indicating the formation of higher order complexes. The complexation efficiency values (CE), which reflect the solubilizing power of the CDs towards the drug, could be arranged in the following order: DM-beta-CD>HP-beta-CD>beta-CD. Solid binary systems of tadalafil with CDs were prepared by kneading and freeze-drying techniques at molar ratios of 1:1, 1:3 and 1:5 (drug to CD). Physical mixtures were prepared in the same molar ratios for comparison. Physicochemical characterization of the prepared systems at molar ratio of 1:5 was studied using differential scanning calorimetry (DSC), X-ray diffractometry (XRD), and Fourier-transform infrared spectroscopy (FTIR). The results showed the formation of true inclusion complexes between the drug and both HP-beta-CD and DM-beta-CD using the freeze-drying method at molar ratio of 1:5. In contrast, crystalline drug was detectable in all other products. The dissolution of tadalafil from all the prepared binary systems was carried out to determine the most appropriate CD type, molar ratio, and preparation technique to prepare inclusion complexes to be used in the development of tablet formulation for oral delivery of tadalafil. The dissolution enhancement was increased on increasing the CD proportion in all the prepared systems. Both the CD type and the preparation technique played an important role in the performance of the system. Irrespective of the preparation technique, the systems prepared using HP-beta-CD and DM-beta-CD yielded better performance than the corresponding ones prepared using beta-CD. In addition, the freeze-drying technique showed superior dissolution enhancement than other methods especially when combined with the beta-CD derivatives.
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36
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Physicochemical, in silico and in vivo evaluation of a danazol–β-cyclodextrin complex. Int J Pharm 2008; 352:5-16. [DOI: 10.1016/j.ijpharm.2007.10.005] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2007] [Revised: 10/01/2007] [Accepted: 10/02/2007] [Indexed: 11/23/2022]
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Ling W, Rui LC, Hua JX. In situ intestinal absorption behaviors of tanshinone IIA from its inclusion complex with hydroxypropyl-beta-cyclodextrin. Biol Pharm Bull 2007; 30:1918-22. [PMID: 17917262 DOI: 10.1248/bpb.30.1918] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
In this paper, the intestinal permeability of the inclusion complex of tanshinone IIA (TS IIA) with 2-hydroxypropyl-beta-cyclodextrin (HP-beta-CD) was investigated. The corresponding complexation of TS IIA-HP-beta-CD was obtained by coevaporation and characterized by differential scanning calorimetry and X-ray diffraction. The recirculation intestinal perfusion technique in rats was used to study the absorption behavior of free and complexed TS IIA. The change of concentration of TS IIA was separately calculated according to Michaelis-Menten and the Fick's equation to investigate its absorption rate-limiting step. Using the mathematical models above, it was concluded that the limit step to absorption of TS IIA was the dissolution process. Different concentrations of complexed TS IIA were administrated to three intestinal segments, with the intestinal permeability ranging from 3.16x10(-5) cm.s(-1) in the duodenum (50 microg.ml(-1)) to 4.11x10(-5) cm.s(-1) in the jejunum (100 microg.ml(-1)). With the increase of dosage of complex, TS IIA's absorption did not show saturated phenomenon, suggesting its transport mechanism in vivo might primary be passive transport. Besides, the permeability of TS IIA was not apparently influenced by the perfusion section studied, which indicated that there might not exist specific absorption site for TS IIA.
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Affiliation(s)
- Wang Ling
- Institution of Clinical Pharmacological, West China Second University Hospital, Sichuan University, P.R. China
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38
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Corti G, Capasso G, Maestrelli F, Cirri M, Mura P. Physical–chemical characterization of binary systems of metformin hydrochloride with triacetyl-β-cyclodextrin. J Pharm Biomed Anal 2007; 45:480-6. [PMID: 17822867 DOI: 10.1016/j.jpba.2007.07.018] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2007] [Accepted: 07/13/2007] [Indexed: 11/17/2022]
Abstract
Interaction products of metformin hydrochloride (MF.HCl), an oral anti-hyperglycaemic agent highly soluble in water, with triacetyl-beta-cyclodextrin (TAbetaCyD), a hydrophobic CyD derivative practically insoluble in water, were prepared to evaluate their suitability for the development of a sustained-release dosage form of the drug. Equimolar MF.HCl-TAbetaCyD solid compounds were obtained by different techniques, i.e., physical mixing, kneading, co-grinding, sealed-heating, and spray-drying, in order to investigate and compare their effectiveness and influence on the physical-chemical properties of the final products. Differential scanning calorimetry, X-ray powder diffractometry, Fourier transform infrared spectroscopy and scanning electron microscopy were used for the solid-state characterization of the different MF.HCl-TAbetaCyD systems, whereas their in vitro dissolution properties were determined according to the dispersed amount method. According to the results of solid-state studies, the ability of the different preparation methods to promote effective interactions between drug and CyD varied in the order: spray-drying>co-grinding>kneading>sealed-heating approximately physical mixing. The same effectiveness rank order was observed also in dissolution studies. In fact the time to dissolve 100% drug varied increased from 1 min, for pure drug, to 3, 7, 40, 120 up to 420 min for physically mixed, sealed-heated, kneaded, co-ground and spray-dried products, respectively. Thus the drug-TA(CyD products obtained by spray drying and co-grinding were selected as the best candidates for the future development of a suitable prolonged-release oral dosage form of MF.HCl.
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Affiliation(s)
- Giovanna Corti
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, University of Florence, via U.Schiff 6, 50019 Sesto Fiorentino, Florence, Italy
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39
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Nie S, Fan X, Peng Y, Yang X, Wang C, Pan W. In vitro and in vivo studies on the complexes of vinpocetine with hydroxypropyl-beta-cyclodextrin. Arch Pharm Res 2007; 30:991-1001. [PMID: 17879753 DOI: 10.1007/bf02993968] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The purpose of this study was to evaluate complexes of vinpocetine (VIN), a poorly water-soluble base type drug, with hydroxypropyl-beta-cyclodextrin (HP-beta-CD) in aqueous environment and in solid state, with or without citric acid (CA) as an acidifier of the complexation medium. The apparent stability constant (Kc) calculated by phase solubility was 282 M(-1) and the complexation in solution was structurally characterized by 1H-NMR which showed VIN was likely to fit into the cyclodextrin cavity with its phenyl ring and ethyl ester bond. Solid complexes of VIN and HP-beta-CD were prepared by kneading (KE), co-evaporating (CE) and freeze-drying (FD) methods. Physical mixtures were prepared for comparison. The study in the solid state included the differential scanning calorimetry (DSC), X-ray diffractometry (XRD) and infrared absorption spectroscopy (IR). From these analyses, CE and FD products were found in amorphous state, allowing to the conclusion of strong evidences of inclusion complex formation. However, the dissolution test showed that only VIN/HP-beta-CD+CA complexes by CE and FD method could provide satisfying dissolution behavior (rapid, complete and lasting) when compared to that of VIN/HP-beta-CD complexes. Interestingly, the addition of CA in inclusion complexes could significantly decrease the amount of HP-beta-CD needed to solubilize the same amount of VIN and thereby reducing the formulation bulk. Furthermore, in-vivo study revealed that the bioavailability of VIN after oral administration to rabbits (n=6) was significantly improved by VIN/HP-beta-CD+CA inclusion complex.
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Affiliation(s)
- Shufang Nie
- Department of Pharmaceutics, Shenyang Pharmaceutical University, Wen Hua RD NO 103, Shenyang, China.
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40
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Hassan HA, Al-Marzouqi AH, Jobe B, Hamza AA, Ramadan GA. Enhancement of dissolution amount and in vivo bioavailability of itraconazole by complexation with β-cyclodextrin using supercritical carbon dioxide. J Pharm Biomed Anal 2007; 45:243-50. [PMID: 17630246 DOI: 10.1016/j.jpba.2007.06.011] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2007] [Revised: 06/05/2007] [Accepted: 06/08/2007] [Indexed: 11/28/2022]
Abstract
The main objective of this study was to improve the inclusion formation between itraconazole and beta-cyclodextrin and thus enhance dissolution amount and bioavailability characteristics of itraconazole. Inclusion complexes between itraconazole and beta-cyclodextrin were prepared using simple physical mixing, conventional coprecipitation method, and supercritical carbon dioxide (SC CO(2)). Effects of process variables (temperature, pressure) and drug:cyclodextrin ratio on inclusion yield and thermal behavior of the solid complexes prepared by SC CO(2) were studied and compared to those obtained by physical mixing and coprecipitation methods. In addition, dissolution amounts of the products obtained by different methods were measured in gastric fluid. Finally, pharmacokinetic studies of the inclusion complexes were conducted in male Wistar rats to assess the bioavailability of the prepared complexes. Results showed that temperature, pressure and itraconazole:beta-cyclodextrin ratio had significant effects on the inclusion yield of the complex prepared by SC CO(2) method. Higher inclusion yields were obtained in the SC CO(2) method as compared to physical mixing and coprecipitation methods. In vivo drug pharmacokinetic studies showed that the itraconazole-beta-cyclodextrin product prepared using SC CO(2) gave higher bioavailability of itraconazole (in blood, liver and kidney of male Wistar rats) as compared to the products obtained by physical mixing or coprecipitation methods.
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Affiliation(s)
- Hazem A Hassan
- Department of Biology, U.A.E. University, Al-Ain, P.O. Box 17555, United Arab Emirates
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41
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Influence of the preparation method on the physicochemical properties of econazole-β-cyclodextrin complexes. J INCL PHENOM MACRO 2007. [DOI: 10.1007/s10847-007-9356-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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42
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Jun SW, Kim MS, Kim JS, Park HJ, Lee S, Woo JS, Hwang SJ. Preparation and characterization of simvastatin/hydroxypropyl-β-cyclodextrin inclusion complex using supercritical antisolvent (SAS) process. Eur J Pharm Biopharm 2007; 66:413-21. [PMID: 17240129 DOI: 10.1016/j.ejpb.2006.11.013] [Citation(s) in RCA: 153] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2006] [Revised: 11/04/2006] [Accepted: 11/22/2006] [Indexed: 11/16/2022]
Abstract
In the present study, the practically insoluble drug, simvastatin (SV), and its inclusion complex with hydroxypropyl beta-cyclodextrin (HP-beta-CD) prepared using supercritical antisolvent (SAS) process were investigated to improve the aqueous solubility and the dissolution rate of drug, thus enhancing its bioavailability. Inclusion complexation in aqueous solution and solid state was evaluated by the phase solubility diagram, differential scanning calorimetry (DSC), powder X-ray diffractometry (PXRD), Fourier-transform infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The phase solubility diagram with HP-beta-CD was classified as A(L)-type at all temperatures investigated, indicating the formation of 1:1 stoichiometric inclusion complex. The apparent complexation constants (K(1:1)) calculated from phase solubility diagram were 774, 846 and 924 M(-1) at 25, 37 and 45+/-0.5 degrees C, respectively. No endothermic and characteristic diffraction peaks corresponding to SV was observed for the inclusion complex in DSC and PXRD. FT-IR study demonstrated the presence of intermolecular hydrogen bonds between SV and HP-beta-CD in inclusion complex, resulting in the formation of amorphous form. Aqueous solubility and dissolution studies indicated that the dissolution rates were remarkably increased in inclusion complex, compared with the physical mixture and drug alone. Moreover, SV/HP-beta-CD inclusion complex performed better than SV in reducing total cholesterol and triglyceride levels. This could be primarily attributed to the improved solubility and dissolution associated with inclusion complex between drug and HP-beta-CD. In conclusion, SAS process could be a useful method for the preparation of the inclusion complex of drug with HP-beta-CD and its solubility, dissolution rate and hypolipidemic activity were significantly increased by complexation between SV and HP-beta-CD.
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Affiliation(s)
- Seoung Wook Jun
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
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Figueiras A, Ribeiro L, Torres-Labandeira JJ, Veiga FJB. Evaluation of host-guest complex formation between a benzimidazolic derivative and cyclodextrins by UV-VIS spectrophotometry and differential scanning calorimetry. J INCL PHENOM MACRO 2007. [DOI: 10.1007/s10847-006-9245-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Al-Marzouqi A, Jobe B, Corti G, Cirri M, Mura P. Physicochemical characterization of drug-cyclodextrin complexes prepared by supercritical carbon dioxide and by conventional techniques. J INCL PHENOM MACRO 2007. [DOI: 10.1007/s10847-006-9192-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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Al-Marzouqi AH, Jobe B, Dowaidar A, Maestrelli F, Mura P. Evaluation of supercritical fluid technology as preparative technique of benzocaine–cyclodextrin complexes—Comparison with conventional methods. J Pharm Biomed Anal 2007; 43:566-74. [PMID: 17010552 DOI: 10.1016/j.jpba.2006.08.019] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2006] [Accepted: 08/26/2006] [Indexed: 10/24/2022]
Abstract
The objective of this study was to investigate the effect of the preparation method on the physico-chemical properties of complexes prepared between beta-cyclodextrin (beta-Cyd) and benzocaine (BZC). In particular, the effectiveness of a new technique based on supercritical carbon dioxide (SC CO(2)) for preparing solid drug-cyclodextrin complexes was investigated and compared to other more conventional methods such as kneading (KN), co-evaporation (COE), co-grinding (GR) and sealed-heating (S.H.). Effects of temperature, pressure and exposure time on the properties of complexes prepared by SC CO(2) technology were also studied. The different systems were characterized by differential scanning calorimetry (DSC), Fourier transform infrared spectroscopy (FTIR), powder X-ray diffractometry (PXRD) and dissolution test according to the dispersed amount method. The co-grinding (GR) method resulted in amorphous products while other methods led to crystalline or partially amorphous products depending on both the method and its experimental conditions. SC CO(2) method revealed to be an effective technique for preparing solid systems between beta-cyclodextrin and benzocaine, avoiding the use of organic solvents (and problems of their complete removal) and allowing an easy scale-up of the process. As for the influence of the experimental conditions in promoting the solid-state drug-carrier interaction when using the SC CO(2) method, temperature seemed to play the major role, whereas pressure and exposure times had more limited effects. Dissolution tests confirmed a limited but favourable effect in increasing the exposure time, while indicated a possible interaction effect between temperature and pressure in influencing the dissolution performance of the final product. The best product obtained by the SC CO(2) method showed dissolution properties similar to those of the co-ground product and only slightly lower than the system obtained by sealed-heating, which was the most effective technique.
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Affiliation(s)
- Ali H Al-Marzouqi
- Department of Chemical and Petroleum Engineering, UAE University, Al-Ain, P.O. Box 17555, UAE.
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Lee PS, Han JY, Song TW, Sung JH, Kwon OS, Song S, Chung YB. Physicochemical characteristics and bioavailability of a novel intestinal metabolite of ginseng saponin (IH901) complexed with β-cyclodextrin. Int J Pharm 2006; 316:29-36. [PMID: 16574357 DOI: 10.1016/j.ijpharm.2006.02.035] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2005] [Revised: 01/23/2006] [Accepted: 02/15/2006] [Indexed: 10/24/2022]
Abstract
In an effort to improve the bioavailability (BA) of the insoluble compound 20-O-(beta-d-glucopyranosyl)-20(S)-protopanaxadiol (IH901), we prepared beta-cyclodextrin (betaCD) and hydroxypropyl-beta-cyclodextrin (HPbetaCD) inclusion complexes containing IH901. IH901 is a major metabolite formed by intestinal bacteria from protopanaxadiol ginseng saponins. We developed and validated an HPLC-based method to measure IH901 levels from samples prepared in vitro. The phase solubility profiles with both cyclodextrins (CDs) were classified as AL-type, indicating the formation of a 1:1 stoichiometric inclusion complex. Stability constants (Ks) calculated from the phase solubility diagrams showed that the betaCD complex was more stable than the HPbetaCD complex. Consequently, complexes of IH901 and betaCD were prepared by a freeze-drying method and were analyzed by fourier transformation-infrared spectroscopy (FT-IR), X-ray diffraction, differential scanning calorimetry (DSC), and scanning electron microscopy (SEM). From these physicochemical characterizations, we confirmed the presence of a new solid phase in the freeze-dried samples. The IH901 released from the complex in a pH 1.2 solution, the pH range of gastric fluids, was considerably lower than the amount released in the other solutions. The IH901 released from the complex in pH 6.8 solution, the range of intestinal fluids, was 9.0-fold greater than pure IH901 powder. However, the amount of IH901 released from the complex in pH 4.0-8.0 was less than 20%. After oral administration of the IH901-betaCD inclusion complex (30 mg/kg IH901) into rats, plasma concentrations were determined by LC/MS/MS. The peak concentration (Cmax) for the inclusion complex was 2.8-fold higher than that for pure IH901 powder. The BA, calculated from the ratio of the AUCoral to the AUCi.v., for the pure IH901 powder, the IH901-betaCD physical mixture, and the inclusion complex was 3.52, 4.34, and 6.57%, respectively. These results indicate that the BA for the inclusion complex was 1.9-fold higher than that for the pure IH901 powder.
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Affiliation(s)
- Pung Sok Lee
- National Research Laboratory (NRL) of PK/PD, Biotechnology Research Institute, College of Pharmacy, Chungbuk National University, Cheongju, Chungbuk 361-763, South Korea
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Jadhav GS, Patel AR, Vavia PR, Malde AK, Coutinho EC. Interaction of Valdecoxib with β-cyclodextrin: Experimental and Molecular Modeling Studies. J INCL PHENOM MACRO 2006. [DOI: 10.1007/s10847-006-9093-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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48
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Al-Marzouqi AH, Shehatta I, Jobe B, Dowaidar A. Phase solubility and inclusion complex of itraconazole with β-cyclodextrin using supercritical carbon dioxide. J Pharm Sci 2006; 95:292-304. [PMID: 16372306 DOI: 10.1002/jps.20535] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Phase-solubility techniques were used to assess the formation of inclusion complex between itraconazole and beta-cyclodextrin. The stability constant and free energies of transfer of itraconazole from aqueous solution to the cavity of beta-cyclodextrin were calculated. Itraconazole solubility in supercritical carbon dioxide (SC CO(2)) was measured at different temperatures and pressures. Drug formulations of itraconazole were prepared by complexation of the drug into beta-cyclodextrin using SC CO(2). Effects of temperature and pressure on inclusion yield of the prepared complexes were studied. The solvent-free inclusion complexes obtained from this method were characterized by UV spectroscopy, differential scanning calorimetry, powder X-ray diffraction, and scanning electron microscopy and compared to those obtained from physical mixing and coprecipitation methods. Results showed that beta-cyclodextrin significantly improved solubility of itraconazole in aqueous solutions. The free energies of transfer of itraconazole from aqueous solution to the cavity of beta-cyclodextrin increased negatively with increasing beta-cyclodextrin concentration. Higher inclusion yields were obtained in the SC CO(2) method compared to physical mixing and coprecipitation methods. Both temperature and pressure had significant effects on itraconazole solubility in SC CO(2) and the inclusion yield of the complex prepared by SC CO(2) method.
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Affiliation(s)
- Ali H Al-Marzouqi
- Department of Chemical & Petroleum Engineering, UAE. University, Al-Ain, United Arab Emirates.
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Challa R, Ahuja A, Ali J, Khar RK. Cyclodextrins in drug delivery: an updated review. AAPS PharmSciTech 2005; 6:E329-57. [PMID: 16353992 PMCID: PMC2750546 DOI: 10.1208/pt060243] [Citation(s) in RCA: 760] [Impact Index Per Article: 40.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
The purpose of this review is to discuss and summarize some of the interesting findings and applications of cyclodextrins (CDs) and their derivatives in different areas of drug delivery, particularly in protein and peptide drug delivery and gene delivery. The article highlights important CD applications in the design of various novel delivery systems like liposomes, microspheres, microcapsules, and nanoparticles. In addition to their well-known effects on drug solubility and dissolution, bioavailability, safety, and stability, their use as excipients in drug formulation are also discussed in this article. The article also focuses on various factors influencing inclusion complex formation because an understanding of the same is necessary for proper handling of these versatile materials. Some important considerations in selecting CDs in drug formulation such as their commercial availability, regulatory status, and patent status are also summarized. CDs, because of their continuing ability to find several novel applications in drug delivery, are expected to solve many problems associated with the delivery of different novel drugs through different delivery routes.
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Affiliation(s)
- Rajeswari Challa
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
| | - Alka Ahuja
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
| | - Javed Ali
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
| | - R. K. Khar
- Department of Pharmaceutics, Faculty of Pharmacy, Hamdard University, 110062 New Delhi, India
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Veiga MD, Merino M, Cirri M, Maestrelli F, Mura P. Comparative Study on Triclosan Interactions in Solution and in the Solid State with Natural and Chemically Modified Cyclodextrins. J INCL PHENOM MACRO 2005. [DOI: 10.1007/s10847-005-1047-6] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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