1
|
Testing the Protective Effects of Sulfobutylether-Βeta-Cyclodextrin (SBECD) and Sugammadex against Chlorpromazine-Induced Acute Toxicity in SH-SY5Y Cell Line and in NMRI Mice. Pharmaceutics 2022; 14:pharmaceutics14091888. [PMID: 36145637 PMCID: PMC9504268 DOI: 10.3390/pharmaceutics14091888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/01/2022] [Accepted: 09/05/2022] [Indexed: 11/17/2022] Open
Abstract
Chlorpromazine (CPZ) is an antipsychotic drug which can cause several adverse effects and drug poisoning. Recent studies demonstrated that CPZ forms highly stable complexes with certain cyclodextrins (CDs) such as sulfobutylether-β-CD (SBECD) and sugammadex (SGD). Since there is no available antidote in CPZ intoxication, and considering the good tolerability of these CDs even if when administered parenterally, we aimed to investigate the protective effects of SBECD and SGD against CPZ-induced acute toxicity employing in vitro (SH-SY5Y neuroblastoma cells) and in vivo (zebrafish embryo) models. Our major findings and conclusions are the following: (1) both SBECD and SGD strongly relieved the cytotoxic effects of CPZ in SH-SY5Y cells. (2) SGD co-treatment did not affect or increase the CPZ-induced 24 h mortality in NMRI mice, while SBECD caused a protective effect in a dose-dependent fashion. (3) The binding constants of ligand–CD complexes and/or the in vitro protective effects of CDs can help to estimate the in vivo suitability of CDs as antidotes; however, some other factors can overwrite these predictions.
Collapse
|
2
|
Jafari G, Raissi H, Shahabi M. Assessment of sulfobutylether-beta-cyclodextrin as a promising Fluorometholone molecule container: DFT, Docking, Molecular dynamics and MM-PBSA free energy calculations. MOLECULAR SIMULATION 2021. [DOI: 10.1080/08927022.2021.1996575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
| | - Heidar Raissi
- Chemistry Department, University of Birjand, Birjand, Iran
| | - Mahnaz Shahabi
- Chemistry Department, University of Birjand, Birjand, Iran
| |
Collapse
|
3
|
Wang Z, Landy D, Sizun C, Cézard C, Solgadi A, Przybylski C, de Chaisemartin L, Herfindal L, Barratt G, Legrand FX. Cyclodextrin complexation studies as the first step for repurposing of chlorpromazine. Int J Pharm 2020; 584:119391. [PMID: 32376444 DOI: 10.1016/j.ijpharm.2020.119391] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 04/27/2020] [Accepted: 04/28/2020] [Indexed: 01/07/2023]
Abstract
The antipsychotic drug chlorpromazine (CPZ) has potential for the treatment of acute myeloid leukemia, if central nervous system side-effects resulting from its passage through the blood-brain barrier can be prevented. A robust drug delivery system for repurposed CPZ would be drug-in-cyclodextrin-in-liposome that would redirect the drug away from the brain while avoiding premature release in the circulation. As a first step, CPZ complexation with cyclodextrin (CD) has been studied. The stoichiometry, binding constant, enthalpy, and entropy of complex formation between CPZ and a panel of CDs was investigated by isothermal titration calorimetry (ITC). All the tested CDs were able to include CPZ, in the form of 1:1, 1:2 or a mixture of 1:1 and 1:2 complexes. In particular, a substituted γ-CD, sugammadex (the octasodium salt of octakis(6-deoxy-6-S-(2-carboxyethyl)-6-thio)cyclomaltooctaose), formed exclusively 1:2 complexes with an extremely high association constant of 6.37 × 109 M-2. Complexes were further characterized by heat capacity changes, one- and two-dimensional (ROESY) nuclear magnetic resonance (NMR) spectroscopy and molecular dynamics simulations. Finally, protection of CPZ against photodegradation by CDs was assessed. This was accelerated rather than reduced by complexation with CD. Altogether these results provide a molecular basis for the use of CD in delayed release formulations for CPZ.
Collapse
Affiliation(s)
- Zhiqiang Wang
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France
| | - David Landy
- Unité de Chimie Environnementale et Interactions sur le Vivant (UCEIV, EA 4492), SFR Condorcet FR CNRS 3417, Université du Littoral Côte d'Opale, 59140 Dunkerque, France
| | - Christina Sizun
- Université Paris-Saclay, CNRS, Institut de Chimie des Substances Naturelles, UPR 2301, 91198 Gif-sur-Yvette, France
| | - Christine Cézard
- Laboratoire de Glycochimie, des Antimicrobiens et des Agroressources, CNRS UMR 7378, Université de Picardie Jules Verne, 80000 Amiens, France
| | - Audrey Solgadi
- Université Paris-Saclay, Inserm, CNRS, Ingénierie et Plateformes au Service de l'Innovation Thérapeutique, 92290 Châtenay-Malabry, France
| | - Cédric Przybylski
- Institut Parisien de Chimie Moléculaire, CNRS UMR 8232, Sorbonne Université, 75005 Paris, France
| | - Luc de Chaisemartin
- Service d'Immunologie, Hôpital Bichat-Claude-Bernard, Assistance Publique-Hôpitaux de Paris, 75018 Paris, France; Université Paris-Saclay, Inserm, Inflammation, Microbiome and Immunosurveillance, 92290 Châtenay-Malabry, France
| | - Lars Herfindal
- Department of Clinical Science, University of Bergen, Jonas Lies Vei 87, 5009 Bergen, Norway
| | - Gillian Barratt
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France
| | - François-Xavier Legrand
- Université Paris-Saclay, CNRS, Institut Galien Paris-Saclay, 92290 Châtenay-Malabry, France.
| |
Collapse
|
4
|
Raut SY, Manne AS, Kalthur G, Jain S, Mutalik S. Cyclodextrins as Carriers in Targeted Delivery of Therapeutic Agents: Focused Review on Traditional and Inimitable Applications. Curr Pharm Des 2019; 25:444-454. [DOI: 10.2174/1381612825666190306163602] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2018] [Accepted: 02/25/2019] [Indexed: 11/22/2022]
Abstract
The objective of the article is to provide a comprehensive review on the application of cyclodextrin
complexation in the delivery of drugs, bioactive molecules or macromolecules, with more emphasis on targeted
drug delivery. Classically the cyclodextrins have been considered only as a means of improving the solubility of
drugs; however, many attempts have been made to use cyclodextrins as drug delivery carriers. The cyclodextrin
surface can be modified with various ligands for active targeting of drugs. It can also be passively targeted
through various triggering mechanisms like thermal, magnetic, pH dependent, light dependent, ultrasound, etc. A
comprehensive literature review has been done in the area of drug delivery using cyclodextrins. Applications of
inclusion complexes in the drug delivery through various routes with examples are discussed. This review focuses
on receptor mediated active targeting as well as stimuli responsive passive targeting of drugs/genes by using
cyclodextrins. The article provides a detailed insight of the use of cyclodextrins and their derivatives on the targeted
delivery of the drugs/genes.
Collapse
Affiliation(s)
- Sushil Y. Raut
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka State, India
| | - Alekhya S.N. Manne
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka State, India
| | - Guruprasad Kalthur
- Department of Clinical Embryology, Kasturba Medical College, Manipal Academy of Higher Education, Manipal 576104, Karnataka State, India
| | - Sanyog Jain
- Centre for Pharmaceutical Nanotechnology, Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Sector 67, S.A.S. Nagar (Mohali), Punjab 160062, India
| | - Srinivas Mutalik
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education (MAHE), Manipal 576104, Karnataka State, India
| |
Collapse
|
5
|
Patel GM, Patel JD. Single Core Osmotic Pump (SCOP): Development of Single Layer Osmotic controlled release tablet for poorly soluble drug. ACTA ACUST UNITED AC 2012. [DOI: 10.7243/2050-120x-1-1] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
6
|
|
7
|
Jain AS, Date AA, Pissurlenkar RRS, Coutinho EC, Nagarsenker MS. Sulfobutyl ether(7) β-cyclodextrin (SBE(7) β-CD) carbamazepine complex: preparation, characterization, molecular modeling, and evaluation of in vivo anti-epileptic activity. AAPS PharmSciTech 2011; 12:1163-75. [PMID: 21918921 DOI: 10.1208/s12249-011-9685-z] [Citation(s) in RCA: 62] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2011] [Accepted: 09/02/2011] [Indexed: 11/30/2022] Open
Abstract
The objective of the present investigation was to study the ability of sulfobutyl ether(7)-β-cyclodextrin to form an inclusion complex with carbamazepine, an anti-epileptic drug with poor water solubility. The formation of the complex was carried out using the industrially feasible spray-drying method. The inclusion complex and physical mixtures were characterized by various techniques such as differential scanning calorimetry (DSC), infrared (IR), nuclear magnetic resonance (NMR), X-ray diffraction (XRD), and molecular modeling. The DSC, IR, and NMR studies confirmed the formation of an inclusion complex between carbamazepine and sulfobutyl ether(7) β-cyclodextrin whereas XRD studies indicated an amorphous nature of the inclusion complex. Molecular modeling studies disclosed different modes of interaction between carbamazepine and sulfobutyl ether(7) β-cyclodextrin with good correlation with experimental observations. The inclusion complex exhibited significantly higher in vitro dissolution profile as compared with pure carbamazepine powder. The in vivo anti-epileptic activity of carbamazepine/sulfobutyl ether(7) β-cyclodextrin complex was evaluated in pentylenetetrazole-induced convulsions model. The carbamazepine/sulfobutyl ether(7) β-cyclodextrin complex showed significantly higher anti-epileptic activity (p <0.01) as compared with that of carbamazepine suspension on oral administration.
Collapse
|
8
|
Merzlikine A, Abramov YA, Kowsz SJ, Thomas VH, Mano T. Development of machine learning models of β-cyclodextrin and sulfobutylether-β-cyclodextrin complexation free energies. Int J Pharm 2011; 418:207-16. [PMID: 21497190 DOI: 10.1016/j.ijpharm.2011.03.065] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Revised: 03/16/2011] [Accepted: 03/24/2011] [Indexed: 12/13/2022]
Abstract
A new set of 142 experimentally determined complexation constants between sulfobutylether-β-cyclodextrin and diverse organic guest molecules, and 78 observations reported in literature, were used for the development of the QSPR models by the two machine learning regression methods - Cubist and Random Forest. Similar models were built for β-cyclodextrin using the 233-compound dataset available in the literature. These results demonstrate that the machine learning regression methods can successfully describe the complex formation between organic molecules and β-cyclodextrin or sulfobutylether-β-cyclodextrin. In particular, the root mean square errors for the test sets predictions by the best models are low, 1.9 and 2.7kJ/mol, respectively. The developed QSPR models can be used to predict the solubilizing effect of cyclodextrins and to help prioritizing experimental work in drug discovery.
Collapse
Affiliation(s)
- Alexei Merzlikine
- Department of Pharmaceutical Sciences, Pfizer Inc., Groton, CT, USA.
| | | | | | | | | |
Collapse
|
9
|
Nag OK, Nayak RR, Lim CS, Kim IH, Kyhm K, Cho BR, Woo HY. Two-Photon Absorption Properties of Cationic 1,4-Bis(styryl)benzene Derivative and Its Inclusion Complexes with Cyclodextrins. J Phys Chem B 2010; 114:9684-90. [DOI: 10.1021/jp102682m] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Okhil Kumar Nag
- Departments of Nanofusion Technology and Cogno-Mechatronics Engineering (WCU), Pusan National University, Miryang 627-706, Republic of Korea, Department of Physics Education, Pusan National University, Busan 609-735, Republic of Korea, and Department of Chemistry, Korea University, Seoul 136-701, Republic of Korea
| | - Rati Ranjan Nayak
- Departments of Nanofusion Technology and Cogno-Mechatronics Engineering (WCU), Pusan National University, Miryang 627-706, Republic of Korea, Department of Physics Education, Pusan National University, Busan 609-735, Republic of Korea, and Department of Chemistry, Korea University, Seoul 136-701, Republic of Korea
| | - Chang Su Lim
- Departments of Nanofusion Technology and Cogno-Mechatronics Engineering (WCU), Pusan National University, Miryang 627-706, Republic of Korea, Department of Physics Education, Pusan National University, Busan 609-735, Republic of Korea, and Department of Chemistry, Korea University, Seoul 136-701, Republic of Korea
| | - In Hong Kim
- Departments of Nanofusion Technology and Cogno-Mechatronics Engineering (WCU), Pusan National University, Miryang 627-706, Republic of Korea, Department of Physics Education, Pusan National University, Busan 609-735, Republic of Korea, and Department of Chemistry, Korea University, Seoul 136-701, Republic of Korea
| | - Kwangseuk Kyhm
- Departments of Nanofusion Technology and Cogno-Mechatronics Engineering (WCU), Pusan National University, Miryang 627-706, Republic of Korea, Department of Physics Education, Pusan National University, Busan 609-735, Republic of Korea, and Department of Chemistry, Korea University, Seoul 136-701, Republic of Korea
| | - Bong Rae Cho
- Departments of Nanofusion Technology and Cogno-Mechatronics Engineering (WCU), Pusan National University, Miryang 627-706, Republic of Korea, Department of Physics Education, Pusan National University, Busan 609-735, Republic of Korea, and Department of Chemistry, Korea University, Seoul 136-701, Republic of Korea
| | - Han Young Woo
- Departments of Nanofusion Technology and Cogno-Mechatronics Engineering (WCU), Pusan National University, Miryang 627-706, Republic of Korea, Department of Physics Education, Pusan National University, Busan 609-735, Republic of Korea, and Department of Chemistry, Korea University, Seoul 136-701, Republic of Korea
| |
Collapse
|
10
|
Impact of Chlorpromazine Self-Association on Its Apparent Binding Constants With Cyclodextrins: Effect of SBE7-β-CD on the Disposition of Chlorpromazine in the Rat. J Pharm Sci 2010; 99:2999-3008. [DOI: 10.1002/jps.22064] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
|
11
|
Sotthivirat S, Haslam JL, Lee PI, Rao VM, Stella VJ. Release mechanisms of a sparingly water-soluble drug from controlled porosity-osmotic pump pellets using sulfobutylether-beta-cyclodextrin as both a solubilizing and osmotic agent. J Pharm Sci 2009; 98:1992-2000. [PMID: 18823032 DOI: 10.1002/jps.21567] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The purpose of this work is to delineate the release mechanisms of a sparingly water-soluble drug, prednisolone (PDL), from a microporous or controlled porosity-osmotic pump pellet (CP-OPP) using sulfobutylether-beta-cyclodextrin (CD) as both a solubilizing and osmotic agent. All factors, osmotic and diffusional, influencing drug release as described by the Theeuwes and Zentner equation were partially demonstrated in an earlier paper1 and are further quantitatively evaluated here to determine whether the equation may be applied to CP-OPPs. The PDL release rate from the CP-OPPs containing precomplexed PDL follows the zero-order kinetics for up to 30-40% of drug release during the first 1-2 h and subsequently nonzero order kinetics. The zero-order drug release phase reveals the main contribution is from osmotic pumping with a negligible diffusion component, resulting from the nearly constant driving forces in the system. The nonzero order drug release phase is associated with the dynamic changes in the system (e.g., declining osmotic driving force and greater diffusion component with time). In addition, the parameters related to membrane characteristics were determined, and the effect of viscosity was evaluated for the pellet system. The membranes coated on the CP-OPPs are less permeable to water or solutes than the membranes coated on the previously reported tablets. The viscosity due to the CD decreases as a function of CD concentration, which partly affects the observed drug release profiles. The viscosity effect of CD is significant and captured in a hydraulic permeability term.
Collapse
Affiliation(s)
- Sutthilug Sotthivirat
- The Department of Pharmaceutical Chemistry, 2095 Constant Avenue, The University of Kansas, Lawrence, Kansas 66047, USA
| | | | | | | | | |
Collapse
|
12
|
Liu L, Wang J, Zhu S. Delivery of Prazosin Hydrochloride from Osmotic Pump System Prepared by Coating the Core Tablet with an Indentation. Drug Deliv 2008; 14:219-24. [PMID: 17497354 DOI: 10.1080/10717540601067455] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
The preparation of an osmotic pump tablet was simplified by elimination of laser drilling using prazosin hydrochloride as the model drug. The osmotic pump system was obtained by coating the indented core tablet compressed by the punch with a needle. A multiple regression equation was achieved with the experimental data of core tablet formulations, and then the formulation was optimized. The influences of the indentation size of the core tablet, environmental media, and agitation rate on drug release profile were investigated. The optimal osmotic pump tablet was found to deliver prazosin hydrochloride at an approximately constant rate up to 24 hr, and independent on both release media and agitation rate. Indentation size of core tablet hardly affected drug release in the range of 0.80-1.15 mm. The method that is simplified by elimination of laser drilling may be promising for preparation of an osmotic pump tablet.
Collapse
Affiliation(s)
- Longxiao Liu
- College of Pharmaceutical Sciences, Zhejiang University, People's Republic of China.
| | | | | |
Collapse
|
13
|
Mehramizi A, Alijani B, Pourfarzib M, Dorkoosh FA, Rafiee -Tehrani M. Solid Carriers for Improved Solubility of Glipizide in Osmotically Controlled Oral Drug Delivery System. Drug Dev Ind Pharm 2008; 33:812-23. [PMID: 17729098 DOI: 10.1080/03639040601128753] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
The purpose of this study was to increase the solubility of glipizide (gli) by solid dispersions SDs technique with polyvinylpyrrolidone (PVP) in aqueous media. The gli-PVP solid dispersion systems was prepared by physical mixing or spray drying method, and characterized by differential scanning calorimetry (DSC), X-ray powder diffraction (XRD) analysis, Fourier transformation-infrared spectroscopy (FT-IR) and scanning electron microscopy (SEM). The elementary osmotic pumps (EOPs) were prepared with gli-PVP complex and the effect of the PVP percentages on the enhancing of gli dissolution rate was studied. The influences of various parameters e.g., drug- PVP ratio, level of solubility modifier, coating weight gain and diameter of drug releasing orifice on drug release profiles were also investigated. The solubility and dissolution rates of gli were significantly increased by solid dispersion using spray dried method as well as their physical mixture. The obtained results indicated that gli-PVP solid dispersion system has suitable solubility behavior in EOP tablets.
Collapse
Affiliation(s)
- Ali Mehramizi
- School of pharmacy, Tehran university of medical sciences, Tehran, Iran
| | | | | | | | | |
Collapse
|
14
|
|
15
|
Abstract
beta-cyclodextrin (beta-CD) and other cyclodextrins (CDs) have utility for solubilizing and stabilizing drugs; however, some are nephrotoxic when administered parenterally. A number of workers have attempted to identify, prepare, and evaluate various CD derivatives with superior inclusion complexation and maximal in vivo safety for various biomedical uses. A systematic study led to SBE-beta-CD (Captisol), a polyanionic variably substituted sulfobutyl ether of beta-CD, as a non-nephrotoxic derivative and HP-beta-CD, a modified CD developed by Janssen. SBE-beta-CD and HP-beta-CD have undergone extensive safety studies and are currently used in six products approved by the Food and Drug Administration (four for Captisol and two for HP-beta-CD). They are also in use in numerous clinical and preclinical studies. This article will focus on the issues that led to the development of these two CDs, their safety, characterization, and applications, and especially their ability to improve drug delivery. SBE-beta-CD interacts very well with neutral drugs to facilitate solubility and chemical stability, and because of its polyanionic nature, it interacts particularly well with cationic drugs. Complexes between SBE-beta-CD and HP-beta-CD and various drugs have been shown to rapidly dissociate after parenteral drug administration, to have no tissue-irritating effects after intramuscular dosing, and to result in superior oral bioavailability of poorly water-soluble drugs. The pharmacokinetics, tissue distribution, and cellular effects of some representative CDs, including SBE-beta-CD and HP-beta-CD, are reviewed. The safety profiles of CDs are discussed, with emphasis on the biological effects of some CDs on the gastrointestinal tract, kidney, and reproduction and development and the carcinogenic potential of CDs. In addition, human experience with CD derivatives, specifically SBE-beta-CD and HP-beta-CD, indicates that these two CDs are well tolerated in humans and have no adverse effects on the kidneys or other organs following either oral or intravenous administration.
Collapse
Affiliation(s)
- Valentino J Stella
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66047, USA.
| | | |
Collapse
|
16
|
Wang X, Nie SF, Li W, Luan L, Pan W. Studies on bi-layer osmotic pump tablets of water-insoluble allopurinol with large dose: in vitro and in vivo. Drug Dev Ind Pharm 2008; 33:1024-9. [PMID: 17891589 DOI: 10.1080/03639040601179897] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Controlled release bi-layer osmotic pump tablets (BOPT) of water-insoluble allopurinol with large dose (150 mg/BOPT) were successfully prepared merely with sodium chloride as osmotic promoting agent and polyethylene oxide (PEO) as suspending agent. Formulations of the two kinds of agents were investigated in order to discuss their effects on the release behavior of BOPT, and then the optimal formulation was evaluated. The pharmacokinetics studies of allopurinol and its active metabolite oxypurinol in two-preparation and two-period crossover design relative to the equivalent dose of commercially common allopurinol tablets were evaluated in six Beagle dogs. And the pharmacokinetics results showed that allopurinol BOPT were able to provide a slow release of allopurinol, and oxypurinol were bioequivalent between allopurinol BOPT and common allopurinol tablets. A good in vitro-in vivo correlation of allopurinol was also proved. In conclusion, water-insoluble drugs with large dose can be designed to BOPT for efficacy and safety use.
Collapse
Affiliation(s)
- Xun Wang
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, PR China
| | | | | | | | | |
Collapse
|
17
|
Sotthivirat S, Haslam JL, Stella VJ. Controlled porosity-osmotic pump pellets of a poorly water-soluble drug using sulfobutylether-beta-cyclodextrin, (SBE) 7M-beta-CD, as a solubilizing and osmotic agent. J Pharm Sci 2007; 96:2364-74. [PMID: 17497739 DOI: 10.1002/jps.20891] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The objective of this work was to demonstrate that the incorporation of sulfobutylether-beta-cyclodextrin, (SBE)(7M)-beta-CD, results in the complete and sustained release of a sparingly water-soluble drug, prednisolone (PDL) from controlled porosity-osmotic pump pellets (CP-OPP). PDL and CD were prepared in various formulations (physical mixtures and presumed preformed complex). Several factors influencing drug and CD release were explored, and the probable mechanisms of drug release were probed and discussed. A significant improvement in the release of PDL from the CP-OPPs was observed by the incorporation of CD relative to the coated pellet formulation containing lactose in place of the CD. The release profiles of PDL depend on the molar ratio of CD to PDL, thickness of the microporous membrane, and osmotic pressure difference across the membrane. PDL appears to be released as an in situ complex with CD via mainly osmotic pumping during at least the initial portion of the release profiles.
Collapse
Affiliation(s)
- Sutthilug Sotthivirat
- The Department of Pharmaceutical Chemistry, 2095 Constant Avenue, The University of Kansas, Lawrence, Kansas 66047, USA
| | | | | |
Collapse
|
18
|
Garg A, Gupta M, Bhargava HN. Effect of formulation parameters on the release characteristics of propranolol from asymmetric membrane coated tablets. Eur J Pharm Biopharm 2007; 67:725-31. [PMID: 17543513 DOI: 10.1016/j.ejpb.2007.04.009] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2007] [Revised: 04/04/2007] [Accepted: 04/16/2007] [Indexed: 11/18/2022]
Abstract
Controlled delivery of drugs has been achieved successfully by use of asymmetric membranes. In our study, we have evaluated the influence of various preparation parameters such as concentration of the polymer, concentration of the pore former and temperature of the precipitation bath on the permeability and the release characteristics of propranolol. Propranolol tablets were prepared by direct compression and were coated with varying concentrations of cellulose acetate and glycerin. The coat was precipitated in water, maintained at various temperatures, followed by air drying of the coat. Scanning Electron Microscopy (SEM) was used to characterize the asymmetric structure of the membrane. The influence of various preparation parameters on the release of propranolol from asymmetric coated tablets was evaluated. SEM confirmed the asymmetric nature of the membrane. A zero order release of propranolol was obtained from the coated tablets of propranolol. Various preparation parameters studied significantly affected (p<0.05) the release of propranolol hydrochloride from the asymmetric membrane coated tablets and the release was independent of the pH and the rate of agitation of the dissolution medium (p>0.05). Asymmetric membranes can be successfully utilized in the controlled delivery of highly water soluble drugs like propranolol and by modifying preparation parameters like polymer concentration, pore former concentration and temperature of the precipitation bath, desired release rates can be obtained.
Collapse
Affiliation(s)
- Amit Garg
- Division of Pharmaceutical Sciences, Massachusetts College of Pharmacy and Health Sciences, Boston 02115, USA
| | | | | |
Collapse
|
19
|
Sotthivirat S, Lubach JW, Haslam JL, Munson EJ, Stella VJ. Characterization of Prednisolone in Controlled Porosity Osmotic Pump Pellets using Solid-State NMR Spectroscopy. J Pharm Sci 2007; 96:1008-17. [PMID: 17455361 DOI: 10.1002/jps.20798] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The overall objective of this study was to demonstrate the influence of formulation and processing variables on the physical state of prednisolone (PDL) in formulations consisting of PDL, microcrystalline cellulose (MCC), and sulfobutylether-beta-cyclodextrin (CD). PDL was used as a model drug in controlled porosity osmotic pump pellet (CP-OPP) formulations, and was characterized using solid-state NMR spectroscopy and other complimentary analytical techniques. Dosage forms and the solid-state properties of drugs and excipients in a formulation may be influenced by the processing conditions used. Several processing parameters, such as amount of water used in wet granulation and subsequent drying conditions, were found to affect the solid-state transformation of PDL. In addition, the presence of excipients in the CP-OPP was observed to decrease the degree of PDL crystallinity, presumably by creating an inclusion complex with the CD. A hydrated form of PDL was created when PDL was ground with water alone; however, this form was not observed in formulated products. Solid-state NMR spectroscopy was shown to be a powerful technique for the analysis of drug formulations and investigations of the effects of processing conditions.
Collapse
Affiliation(s)
- S Sotthivirat
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66047, USA
| | | | | | | | | |
Collapse
|
20
|
Sotthivirat S, Haslam JL, Stella VJ. Evaluation of various properties of alternative salt forms of sulfobutylether-β-cyclodextrin, (SBE)7M-β-CD. Int J Pharm 2007; 330:73-81. [PMID: 17045435 DOI: 10.1016/j.ijpharm.2006.08.046] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2005] [Revised: 03/22/2006] [Accepted: 08/30/2006] [Indexed: 10/24/2022]
Abstract
The goal of this study was to evaluate alternative salt forms of (SBE)7M-beta-CD (currently the sodium salt). The potential salt form would ideally decrease the rate of (SBE)7M-beta-CD release from osmotic pump formulations and result in an increase in the rate and extent of drug release in osmotic pump tablet and pellet dosage forms. Several (SBE)7M-beta-CD salt forms (potassium, calcium, and two ethylene diamine salt forms) were prepared by either titration or ultrafiltration and characterized by elemental analysis and capillary electrophoresis, CE. The physical properties (water uptake behavior, osmolality, complexation characteristics, etc.) were then compared to the sodium salt form. Although the water isotherm and the binding characteristics using various model drugs were similar among all the salt forms, the calcium salt form appeared to be the best alternative candidate due to its lower osmolality and slower intrinsic dissolution rate.
Collapse
Affiliation(s)
- S Sotthivirat
- Department of Pharmaceutical Chemistry, The University of Kansas, 2095 Constant Avenue, Lawrence, KS 66047, USA
| | | | | |
Collapse
|
21
|
Am Ende MT, Miller LA. Mechanistic investigation of drug release from asymmetric membrane tablets: effect of media gradients (osmotic pressure and concentration), and potential coating failures on in vitro release. Pharm Res 2006; 24:288-97. [PMID: 17180730 DOI: 10.1007/s11095-006-9142-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2006] [Accepted: 07/31/2006] [Indexed: 10/23/2022]
Abstract
PURPOSE An asymmetric membrane (AM) tablet was developed for a soluble model compound to study the in vitro drug release mechanisms in challenge conditions, including osmotic gradients, concentration gradients, and under potential coating failure modes. Porous, semipermable membrane integrity may be compromised by a high fat meal or by the presence of a defect in the coating that could cause a safety concern about dose-dumping. METHODS The osmotic and diffusional release mechanisms of the AM tablet were independently shut down such that their individual contribution to the overall drug release was measured. Shut off of osmotic and diffusional release was accomplished by performing dissolution studies into receptor solutions with osmotic pressure above the internal core osmotic pressure and into receptor solutions saturated with drug, respectively. The effect of coating failure modes on in vitro drug release from the AM tablet was assessed through a simulated high-fat meal and by intentionally compromising the coating integrity. RESULTS The predominant drug release mechanism for the AM tablet was osmotic and accounted for approximately 90-95% of the total release. Osmotic release was shutoff when the receptor media osmotic pressure exceeded 76 atm. Diffusional release of the soluble drug amounted to 5-10% of the total release mechanism. The observed negative in vitro food effect was attributed to the increased osmotic pressure from the high fat meal when compared to the predicted release rates in sucrose media with the same osmotic pressure. This suppression in drug release rate due to a high fat meal is not anticipated to affect in vivo performance of the dosage form, as the rise in pressure is short-lived. CONCLUSIONS Drug release from the AM system studied was determined to be robust to varying and extreme challenge conditions. The conditions investigated included varying pH, agitation rate, media osmotic pressure, media saturated with drug to eliminate the concentration gradient, simulated high fat meal, and intentionally placed film coating defects. Osmotic and diffusional shut off experiments suggest that the mechanism governing drug release is a combination of osmotic and diffusional at approximately 90-95% and 5-10%, respectively. In addition, the coating failure mode studies revealed this formulation and design is not significantly affected by a high fat meal or by an intentionally placed defect in the film coating, and more specifically, did not result in a burst of drug release.
Collapse
|
22
|
UEKAMA KANETO, HIRAYAMA FUMITOSHI, ARIMA HIDETOSHI. Recent Aspect of Cyclodextrin-Based Drug Delivery System. J INCL PHENOM MACRO 2006. [DOI: 10.1007/s10847-006-9052-y] [Citation(s) in RCA: 68] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
23
|
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: 743] [Impact Index Per Article: 39.1] [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.
Collapse
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
| |
Collapse
|
24
|
Okimoto K, Tokunaga Y, Ibuki R, Irie T, Uekama K, Rajewski RA, Stella VJ. Applicability of (SBE)7m-beta-CD in controlled-porosity osmotic pump tablets (OPTs). Int J Pharm 2005; 286:81-8. [PMID: 15501004 DOI: 10.1016/j.ijpharm.2004.08.002] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2004] [Revised: 08/05/2004] [Accepted: 08/05/2004] [Indexed: 11/28/2022]
Abstract
The purpose of this study was to investigate the general application of a controlled-porosity osmotic pump tablet (OPT) utilizing (SBE)7m-beta-CD as both a solubilizer and an osmotic agent for drugs with varying physical properties. OPTs utilizing (SBE)7m-beta-CD were prepared for five poorly soluble and two highly water-soluble drugs. The Japanese Pharmacopoeia dissolution method was used to study the drug and (SBE)7m-beta-CD release from the OPTs. The drug concentration in the OPT core after the OPT was placed in the release medium for two hours was assayed gravimetrically and by HPLC. An appropriate composition ratio (ACR) of (SBE)7m-beta-CD to drug at which drug release from the OPT was complete and pH-independent within the physiological pH range of the GI tract was determined for each drug. The ACR values correlate to the drug concentration in the OPT core when the OPTs were placed in the release medium for two hours. The release profiles of prednisolone (a poorly water-soluble drug) and sodium chloride (a water-soluble compound) from the OPTs were almost the same as that of (SBE)7m-beta-CD. Also, the release rate of each drug per unit membrane surface area from the OPTs was similar, regardless of the differences in drug solubility. The present results confirmed that (SBE)7m-beta-CD serves as both a solubility modulator and as an osmotic pumping agent for OPTs, from which the release rate of both water-soluble and poorly water-soluble drugs can be controlled.
Collapse
Affiliation(s)
- Kazuto Okimoto
- Technological Development Laboratories, Fujisawa Pharmaceutical Co. Ltd., 1-6, Kashima 2-chome, Yodogawa-ku, Osaka 532-8514, Japan
| | | | | | | | | | | | | |
Collapse
|
25
|
Abstract
The pharmaceutically useful cyclodextrins (CyDs) are classified into hydrophilic, hydrophobic, and ionic derivatives. Because of the multi-functional characteristics and bioadaptability, these CyDs are capable of alleviating the undesirable properties of drug molecules through the formation of inclusion complexes or the form of CyD/drug conjugates. This review outlines the current application of CyDs in design and evaluation of CyD-based drug formulation, focusing on their ability to enhance the drug absorption across biological barriers, the ability to control the rate and time profiles of drug release, and the ability to deliver a drug to a targeted site.
Collapse
Affiliation(s)
- Kaneto Uekama
- Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto, Japan.
| |
Collapse
|
26
|
Abstract
Owing to the increasingly globalized nature of the cyclodextrin (CyD)-related science and technology, development of the CyD-based pharmaceutical formulation is rapidly progressing. The pharmaceutically useful CyDs are classified into hydrophilic, hydrophobic, and ionic derivatives. Because of the multi-functional characteristics and bioadaptability, these CyDs are capable of alleviating the undesirable properties of drug molecules through the formation of inclusion complexes or the form of CyD/drug conjugates. This review outlines the current application of CyDs in drug delivery and pharmaceutical formulation, focusing on the following evidences. 1) The hydrophilic CyDs enhance the rate and extent of bioavailability of poorly water-soluble drugs. 2) The amorphous CyDs such as 2-hydroxypropyl-beta-CyD are useful for inhibition of polymorphic transition and crystallization rates of drugs during storage. 3) The delayed release formulation can be obtained by the use of enteric type CyDs such as O-carboxymethyl-O-ethyl-beta-CyD. 4) The hydrophobic CyDs are useful for modification of the release site and/or time profile of water-soluble drugs with prolonged therapeutic effects. 5) The branched CyDs are particularly effective in inhibiting the adsorption to hydrophobic surface of containers and aggregation of polypeptide and protein drugs. 6) The combined use of different CyDs and/or pharmaceutical additives can serve as more functional drug carriers, improving efficacy and reducing side effects. 7) The CyD/drug conjugates may provide a versatile means for the constructions of not only colonic delivery system but also site-specific drug release system, including gene delivery. On the basis of the above-mentioned knowledge, the advantages and limitations of CyDs in the design of advanced dosage forms will be discussed.
Collapse
Affiliation(s)
- Kaneto Uekama
- Department of Physical Pharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, Kumamoto 862-0973, Japan
| |
Collapse
|
27
|
Werner U, Damge C, Maincent P, Bodmeier R. Properties of in situ gelling nasal inserts containing estradiol/methyl β-cyclodextrin. J Drug Deliv Sci Technol 2004. [DOI: 10.1016/s1773-2247(04)50048-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
28
|
Okimoto K, Ohike A, Ibuki R, Aoki O, Ohnishi N, Rajewski RA, Stella VJ, Irie T, Uekama K. Factors affecting membrane-controlled drug release for an osmotic pump tablet (OPT) utilizing (SBE)(7m)-beta-CD as both a solubilizer and osmotic agent. J Control Release 1999; 60:311-9. [PMID: 10425336 DOI: 10.1016/s0168-3659(99)00077-2] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
PURPOSE The purpose of this study was to define membrane controlling factors responsible for drug release from a controlled-porosity osmotic pump tablet (OPT) that utilizes a sulfobutyl ether-beta-cyclodextrin, (SBE)(7m)-beta-CD, as both a solubilizing and osmotic agent. METHOD The OPT was spray coated with cellulose acetate solutions varying the amount and size of micronized lactose, the amount of triethyl citrate (TEC) and the composition ratio of dichlormethane to ethanol. Chlorpromazine (CLP) was used as a model drug. The release of CLP from the OPTs was studied using the Japanese Pharmacopoeia dissolution method. The membrane surface area of the OPTs were measured with multi-point analysis by the gas absorption method. RESULTS The release rate of CLP from OPTs containing (SBE)(7m)-beta-CD increased with increasing amounts of micronized lactose and decreasing amounts of TEC and lactose particle size in the membrane. Also, the CLP release rates from the spray-coated OPTs using mixtures of varying ratios of dichlormethane to ethanol were almost identical. The membrane surface area of the OPTs following release of membrane components had a linear relationship to CLP release rates from the OPTs. CONCLUSION The present results confirmed that the membrane controlling factors responsible for the drug release were the amount and size of micronized lactose and the amount of TEC in the membrane.
Collapse
Affiliation(s)
- K Okimoto
- Technological Development Laboratories, Fujisawa Pharmaceutical Co., Ltd., 1-6, Kashima 2-chome, Yodogawa-ku, Osaka 532-8514, Japan
| | | | | | | | | | | | | | | | | |
Collapse
|