1
|
Nair AR, Vullendula SKA, Yarlagadda DL, Bheemisetty B, Dengale SJ, Bhat K. Physicochemical interaction of rifampicin and ritonavir-lopinavir solid dispersion: an in-vitro and ex-vivo investigation. Drug Dev Ind Pharm 2024; 50:192-205. [PMID: 38305806 DOI: 10.1080/03639045.2024.2309508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 01/18/2024] [Indexed: 02/03/2024]
Abstract
OBJECTIVE To investigate the in-situ physicochemical interaction of Rifampicin and Ritonavir - Lopinavir Solid dispersion administered for the treatment of comorbid conditions i.e. Tuberculosis and HIV/AIDS. METHODS pH-shift dissolution of Rifampicin (RIF) in presence of Ritonavir-Lopinavir solid dispersion (RL-SD) was carried out in USP phosphate buffer 6.8 and FaSSIF. Equilibrium and amorphous solubility were determined for the drugs. Pure drugs, their physical mixtures, and pH-shifted co-precipitated samples were characterized using DSC, PXRD, and FTIR. Fluorescence spectroscopy was used to investigate drug-rich and drug-lean phases. In-vitro and ex-vivo flux studies were also carried out. RESULTS The results showed significant differences in the solubility and dissolution profiles of RTV and LOP in the presence of RIF, while RIF profile remained unchanged. Amorphicity, intermolecular interaction and aggregate formation in pH-shifted samples were revealed in DSC, XRD and FTIR analysis. Fluorescence spectroscopy confirmed the formation of drug-rich phase upon pH-shift. In-vitro and ex-vivo flux studies revealed significant reduction in the flux of all the drugs when studied in presence of second drug. CONCLUSION RIF, RTV and LOP in presence of each other on pH-shift, results in co-precipitation in the amorphous form (miscible) which leads to reduction in the highest attainable degree of supersaturation. This reduction corresponds to the mole fraction of the RIF, RTV and LOP within the studied system. These findings suggest that the concomitant administration of these drugs may lead to physicochemical interactions and possible ineffective therapy.
Collapse
Affiliation(s)
- Athira R Nair
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Sai Krishna Anand Vullendula
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Dani Lakshman Yarlagadda
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Brahmam Bheemisetty
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| | - Swapnil J Dengale
- Department of Pharmaceutical Analysis, National Institute of Pharmaceutical Education and Research (NIPER), Guwahati, Changsari, India
| | - Krishnamurthy Bhat
- Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, India
| |
Collapse
|
2
|
Shah H, Shah K, Gajera B, Dave RH, Taft DR. Developing a Formulation Strategy Coupled with PBPK Modeling and Simulation for the Weakly Basic Drug Albendazole. Pharmaceutics 2023; 15:pharmaceutics15041040. [PMID: 37111526 PMCID: PMC10145446 DOI: 10.3390/pharmaceutics15041040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Revised: 03/11/2023] [Accepted: 03/17/2023] [Indexed: 04/29/2023] Open
Abstract
Albendazole (ABZ) is a weakly basic drug that undergoes extensive presystemic metabolism after oral administration and converts to its active form albendazole sulfoxide (ABZ_SO). The absorption of albendazole is limited by poor aqueous solubility, and dissolution is the rate-limiting step in the overall exposure of ABZ_SO. In this study, PBPK modeling was used to identify formulation-specific parameters that impact the oral bioavailability of ABZ_SO. In vitro experiments were carried out to determine pH solubility, precipitation kinetics, particle size distribution, and biorelevant solubility. A transfer experiment was conducted to determine the precipitation kinetics. A PBPK model for ABZ and ABZ_SO was developed using the Simcyp™ Simulator based on parameter estimates from in vitro experiments. Sensitivity analyses were performed to assess the impact of physiological parameters and formulation-related parameters on the systemic exposure of ABZ_SO. Model simulations predicted that increased gastric pH significantly reduced ABZ absorption and, subsequently, ABZ_SO systemic exposure. Reducing the particle size below 50 µm did not improve the bioavailability of ABZ. Modeling results illustrated that systemic exposure of ABZ_SO was enhanced by increasing solubility or supersaturation and decreasing the drug precipitation of ABZ at the intestinal pH level. These results were used to identify potential formulation strategies to enhance the oral bioavailability of ABZ_SO.
Collapse
Affiliation(s)
- Harsh Shah
- Invagen, A Cipla Subsidiary, Hauppauge, NY 11788, USA
| | - Kushal Shah
- Takeda Pharmaceuticals International Inc., Cambridge, MA 02139, USA
| | | | - Rutesh H Dave
- Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
| | - David R Taft
- Samuel J. and Joan B. Williamson Institute for Pharmacometrics, Division of Pharmaceutical Sciences, Arnold & Marie Schwartz College of Pharmacy and Health Sciences, Long Island University, Brooklyn, NY 11201, USA
| |
Collapse
|
3
|
Mohammad A, Singh S, Swain S, Parhi R. Design of experiments assisted the development of inclusion complexes of ramipril using hydrophilic carriers for enhancement of solubility and dissolution rate. BRAZ J PHARM SCI 2022. [DOI: 10.1590/s2175-97902022e20203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
|
4
|
Hedaya MA, El-masry SM, Helmy SA. Physiologically relevant model to establish the in vivo-in vitro correlation for etamsylate controlled release matrix tablets. J Drug Deliv Sci Technol 2021; 66:102864. [DOI: 10.1016/j.jddst.2021.102864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
5
|
De Simone A, Davani L, Montanari S, Tumiatti V, Avanessian S, Testi F, Andrisano V. Combined Methodologies for Determining In Vitro Bioavailability of Drugs and Prediction of In Vivo Bioequivalence From Pharmaceutical Oral Formulations. Front Chem 2021; 9:741876. [PMID: 34805090 PMCID: PMC8597939 DOI: 10.3389/fchem.2021.741876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/15/2021] [Indexed: 11/26/2022] Open
Abstract
With the aim of developing an in vitro model for the bioavailability (BA) prediction of drugs, we focused on the study of levonorgestrel (LVN) released by 1.5 mg generic and brand-name tablets. The developed method consisted in combining a standard dissolution test with an optimized parallel artificial membrane permeability assay (PAMPA) to gain insights into both drug release and gastrointestinal absorption. Interestingly, the obtained results revealed that the tablet standard dissolution test, combined with an optimized PAMPA, highlighted a significant decrease in the release (15 ± 0.01 μg min−1 vs 30 ± 0.01 μg min−1) and absorption (19 ± 7 × 10–6 ± 7 cm/s Pe vs 41 ± 15 × 10–6 cm/s Pe) profiles of a generic LVN tablet when compared to the brand-name formulation, explaining unbalanced in vivo bioequivalence (BE). By using this new approach, we could determine the actual LVN drug concentration dissolved in the medium, which theoretically can permeate the gastrointestinal (GI) barrier. In fact, insoluble LVN/excipient aggregates were found in the dissolution media giving rise to non-superimposable dissolution profiles between generic and brand-name LVN tablets. Hence, the results obtained by combining the dissolution test and PAMPA method provided important insights confirming that the combined methods can be useful in revealing crucial issues in the prediction of in vivo BE of drugs.
Collapse
Affiliation(s)
- A De Simone
- Department of Drug Science and Technology, University of Turin, Torino, Italy
| | - L Davani
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
| | - S Montanari
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
| | - V Tumiatti
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
| | | | - F Testi
- Valpharma International S.p.A., Rimini, Italy
| | - V Andrisano
- Department for Life Quality Studies, University of Bologna, Rimini, Italy
| |
Collapse
|
6
|
Hatanaka Y, Uchiyama H, Kadota K, Tozuka Y. Improved solubility and permeability of both nifedipine and ketoconazole based on coamorphous formation with simultaneous dissolution behavior. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102715] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
|
7
|
Kaushik R, Budhwar V, Kaushik D. An Overview on Recent Patents and Technologies on Solid Dispersion. ACTA ACUST UNITED AC 2021; 14:63-74. [PMID: 31951172 PMCID: PMC7569281 DOI: 10.2174/1872211314666200117094406] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Revised: 11/07/2019] [Accepted: 11/29/2019] [Indexed: 11/22/2022]
Abstract
The oral bioavailability enhancement of poorly water-soluble medicaments is still one of the most complicated aspects of the formulation development. Various approaches are currently available for solubility and rate of dissolution enhancement such as salt formation, solubilization and reduction of particle size, each with its own limitations and advantages. Solid dispersion is one of the most suitable approaches for the formulation development of poorly water-soluble drugs. The popularity of solid dispersion is evident from the increasing number of patent applications and patents granted in this field during recent years. This article reviews the various approaches for the preparation of solid dispersion such as a solvent melting, hot-melt extrusion method, solvent evaporation method, cryogenic processing approaches etc. from the perspective of patents filed or granted for these techniques. Some of the aspects taken into account before the preparation of solid dispersions are carrier selection and physic-chemical testing along with an insight into the molecular arrangement of medicaments in solid dispersion. The manuscript further highlights various commercial patented technology platforms such as Solumertm, Hovione and Kinetisol which are based on the concept of solid dispersions.
Collapse
Affiliation(s)
- Ritu Kaushik
- Department of Pharmaceutical Sciences, M.D. University, Rohtak-124001, Haryana, India
| | - Vikas Budhwar
- Department of Pharmaceutical Sciences, M.D. University, Rohtak-124001, Haryana, India
| | - Deepak Kaushik
- Department of Pharmaceutical Sciences, M.D. University, Rohtak-124001, Haryana, India
| |
Collapse
|
8
|
Yoshikawa T, Oki J, Ichikawa N, Yamashita S, Sugano K. Small differences in acidic pH condition significantly affect dissolution equivalence between drug products of acidic drug salt. J Drug Deliv Sci Technol 2021. [DOI: 10.1016/j.jddst.2021.102546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
9
|
Rede K, Bolko Seljak K, Bogataj M, Gašperlin M. Can APIs that are Poorly Water‐ and Oil‐Soluble Benefit from Incorporation into SMEDDS? The Case of Dipyridamole. EUR J LIPID SCI TECH 2021. [DOI: 10.1002/ejlt.202000303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Katarina Rede
- Faculty of Pharmacy University of Ljubljana Aškerčeva cesta 7 Ljubljana 1000 Slovenia
| | - Katarina Bolko Seljak
- Faculty of Pharmacy University of Ljubljana Aškerčeva cesta 7 Ljubljana 1000 Slovenia
| | - Marija Bogataj
- Faculty of Pharmacy University of Ljubljana Aškerčeva cesta 7 Ljubljana 1000 Slovenia
| | - Mirjana Gašperlin
- Faculty of Pharmacy University of Ljubljana Aškerčeva cesta 7 Ljubljana 1000 Slovenia
| |
Collapse
|
10
|
Vasconcelos T, Prezotti F, Araújo F, Lopes C, Loureiro A, Marques S, Sarmento B. Third-generation solid dispersion combining Soluplus and poloxamer 407 enhances the oral bioavailability of resveratrol. Int J Pharm 2021; 595:120245. [DOI: 10.1016/j.ijpharm.2021.120245] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2020] [Revised: 12/21/2020] [Accepted: 12/22/2020] [Indexed: 01/17/2023]
|
11
|
Chegireddy M, Hanegave GK, Lakshman D, Urazov A, Sree KN, Lewis SA, Dengale SJ. The Significance of Utilizing In Vitro Transfer Model and Media Selection to Study the Dissolution Performance of Weak Ionizable Bases: Investigation Using Saquinavir as a Model Drug. AAPS PharmSciTech 2020; 21:47. [PMID: 31900686 DOI: 10.1208/s12249-019-1563-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2019] [Accepted: 10/09/2019] [Indexed: 01/20/2023] Open
Abstract
This study investigated the dissolution behavior of BCS class II ionizable weak base Saquinavir and its mesylate salt in the multi-compartment transfer setup employing different composition of dissolution media. The dissolution behavior of Saquinavir was studied by using a two-compartment transfer model representing the transfer of drug from the stomach (donor compartment) to the upper intestine (acceptor compartment). Various buffers like phosphate, bicarbonate, FaSSIF, and FeSSIF were employed. The dissolution was also studied in the concomitant presence of the additional solute, i.e., Quercetin. Further, the dissolution profiles of Saquinavir and its mesylate salt were simulated by GastroPlusTM, and the simulated dissolution profiles were compared against the experimental ones. The formation of in situ HCl salt and water-soluble amorphous phosphate aggregates was confirmed in the donor and acceptor compartments of the transfer setup, respectively. As the consequence of the lower solubility product of HCl salt of Saquinavir, the solubility advantage of mesylate salt was vanished leading to the lower than the predicted dissolution in the acceptor compartment. However, the formation of water-soluble aggregates in the presence of the phosphate salts was observed leading to the higher than the predicted dissolution of the free base in the transfer setup. Interestingly, the formation of such water-soluble aggregates was found to be hindered in the concomitant presence of an ionic solute resulting in the lower dissolution rates. The in situ generation of salts and aggregates in the transfer model lead to the inconsistent prediction of dissolution profiles by GastroPlusTM.
Collapse
|
12
|
Xi Z, Sharma N, Paprikar A, Lin S. Development and evaluation of dipyridamole sustained release tablets containing micro-environmental pH modifiers. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2019.101231] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
Berthelsen R, Klitgaard M, Rades T, Müllertz A. In vitro digestion models to evaluate lipid based drug delivery systems; present status and current trends. Adv Drug Deliv Rev 2019; 142:35-49. [PMID: 31265861 DOI: 10.1016/j.addr.2019.06.010] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 06/07/2019] [Accepted: 06/28/2019] [Indexed: 12/31/2022]
Abstract
During the past two decades, a range of in vitro models simulating the digestion processes occurring in the stomach and small intestine have been developed to characterize lipid based drug delivery systems (LbDDSs). This review describes the presently existing range of in vitro digestion models and their use in the field of oral drug delivery. The models are evaluated in terms of their suitability to assess LbDDSs, and their ability to produce in vitro - in vivo correlations (IVIVCs). While the pH-stat lipolysis model is by far the most commonly utilized in vitro digestion model in relation to characterizing LbDDSs, a series of recent studies have shown a lack of IVIVCs limiting its future use. Presently, no single in vitro digestion model exists which is able to predict the in vivo performance of various LbDDSs. However, recent research has shown the potential of combined digestion-permeation models as well as species specific digestion models.
Collapse
Affiliation(s)
- Ragna Berthelsen
- University of Copenhagen, Department of Pharmacy, Universitetsparken 2, 2100 Copenhagen, Denmark.
| | - Mette Klitgaard
- University of Copenhagen, Department of Pharmacy, Universitetsparken 2, 2100 Copenhagen, Denmark.
| | - Thomas Rades
- University of Copenhagen, Department of Pharmacy, Universitetsparken 2, 2100 Copenhagen, Denmark.
| | - Anette Müllertz
- University of Copenhagen, Department of Pharmacy, Universitetsparken 2, 2100 Copenhagen, Denmark.
| |
Collapse
|
14
|
Sakhare SD, Anand VSK, Karan A, Sree KN, Vasantharaju SG, Pai G, Dengale SJ. The Assessment of pH-Induced Supersaturation and Impact of an Additional Drug on the Solution Phase Behavior of Saquinavir. J Pharm Innov 2018. [DOI: 10.1007/s12247-018-9357-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
|
15
|
Lozoya-Agullo I, González-Álvarez I, Merino-Sanjuán M, Bermejo M, González-Álvarez M. Preclinical models for colonic absorption, application to controlled release formulation development. Eur J Pharm Biopharm 2018; 130:247-259. [PMID: 30064699 DOI: 10.1016/j.ejpb.2018.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2018] [Revised: 07/04/2018] [Accepted: 07/05/2018] [Indexed: 12/14/2022]
Abstract
Oral controlled release (CR) formulations have many benefits and have become a valuable resource for the local and systemic administration of drugs. The most important characteristic of these pharmaceutical products is that drug absorption occurs mainly in the colon. Therefore, this review analyses the physiological and physicochemical features that may affect an orally administered CR product, as well as the different strategies to develop a CR dosage form and the methods used to evaluate the formulation efficacy. The models available to study the intestinal permeability and their applicability to colonic permeability determinations are also discussed.
Collapse
Affiliation(s)
- Isabel Lozoya-Agullo
- Pharmacokinetics and Pharmaceutical Technology, Miguel Hernandez University, Spain; Pharmacokinetics, Pharmaceutical Technology and Parasitology, University of Valencia, Spain
| | | | - Matilde Merino-Sanjuán
- Pharmacokinetics, Pharmaceutical Technology and Parasitology, University of Valencia, Spain; Molecular Recognition and Technological Development, Polytechnic University-University of Valencia, Valencia, Spain
| | - Marival Bermejo
- Pharmacokinetics and Pharmaceutical Technology, Miguel Hernandez University, Spain
| | | |
Collapse
|
16
|
O'Dwyer PJ, Litou C, Box KJ, Dressman JB, Kostewicz ES, Kuentz M, Reppas C. In vitro methods to assess drug precipitation in the fasted small intestine – a PEARRL review. J Pharm Pharmacol 2018; 71:536-556. [DOI: 10.1111/jphp.12951] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Accepted: 05/28/2018] [Indexed: 12/12/2022]
Abstract
Abstract
Objectives
Drug precipitation in vivo poses a significant challenge for the pharmaceutical industry. During the drug development process, the impact of drug supersaturation or precipitation on the in vivo behaviour of drug products is evaluated with in vitro techniques. This review focuses on the small and full scale in vitro methods to assess drug precipitation in the fasted small intestine.
Key findings
Many methods have been developed in an attempt to evaluate drug precipitation in the fasted state, with varying degrees of complexity and scale. In early stages of drug development, when drug quantities are typically limited, small-scale tests facilitate an early evaluation of the potential precipitation risk in vivo and allow rapid screening of prototype formulations. At later stages of formulation development, full-scale methods are necessary to predict the behaviour of formulations at clinically relevant doses. Multicompartment models allow the evaluation of drug precipitation after transfer from stomach to the upper small intestine. Optimisation of available biopharmaceutics tools for evaluating precipitation in the fasted small intestine is crucial for accelerating the development of novel breakthrough medicines and reducing the development costs.
Summary
Despite the progress from compendial quality control dissolution methods, further work is required to validate the usefulness of proposed setups and to increase their biorelevance, particularly in simulating the absorption of drug along the intestinal lumen. Coupling results from in vitro testing with physiologically based pharmacokinetic modelling holds significant promise and requires further evaluation.
Collapse
Affiliation(s)
- Patrick J O'Dwyer
- Pion Inc. (UK) Ltd., Forest Row, East Sussex, UK
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Zografou, Greece
| | - Chara Litou
- Institute of Pharmaceutical Technology, Goethe University, Frankfurt am Main, Germany
| | - Karl J Box
- Pion Inc. (UK) Ltd., Forest Row, East Sussex, UK
| | - Jennifer B Dressman
- Institute of Pharmaceutical Technology, Goethe University, Frankfurt am Main, Germany
| | - Edmund S Kostewicz
- Institute of Pharmaceutical Technology, Goethe University, Frankfurt am Main, Germany
| | - Martin Kuentz
- University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
| | - Christos Reppas
- Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Zografou, Greece
| |
Collapse
|
17
|
Jeon JH, Yoo M, Jung TH, Jeon WM, Han KS. Evaluation of the Digestibility of Korean Hanwoo Beef Cuts Using the in vitro Physicochemical Upper Gastrointestinal System. Korean J Food Sci Anim Resour 2017; 37:682-689. [PMID: 29147091 PMCID: PMC5686326 DOI: 10.5851/kosfa.2017.37.5.682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/04/2017] [Accepted: 09/04/2017] [Indexed: 11/06/2022] Open
Abstract
The aim of this study was to investigate the digestibility of different Korean Hanwoo beef cuts using an in vitro digestion model, in vitro physicochemical upper gastrointestinal system (IPUGS). The four most commonly consumed cuts - tenderloin, sirloin, brisket and flank, and bottom round - were chosen for this study. Beef samples (75 g) were cooked and ingested into IPUGS, which was composed of mouth, esophagus, and stomach, thereby simulating the digestion conditions of humans. Digested samples were collected every 15 min for 4 h of simulation and their pH monitored. Samples were visualized under a scanning electron microscope (SEM) to examine changes in the smoothness of the surface after digestion. Analysis of the amino acid composition and molecular weight (MW) of peptides was performed using reverse-phase high performance liquid chromatography and sodium dodecyl sulfate polyacrylamide gel electrophoresis, respectively. Following proteolysis by the gastric pepsin, beef proteins were digested into peptides. The amount of peptides with higher MW decreased over the course of digestion. SEM results revealed that the surface of the digested samples became visibly smoother. Total indispensable and dispensable amino acids were the highest for the bottom round cut prior to digestion simulation. However, the total amount of indispensable amino acids were maximum for the tenderloin cut after digestion. These results may provide guidelines for the elderly population to choose easily digestible meat cuts and products to improve their nutritional and health status.
Collapse
Affiliation(s)
- Ji-Hye Jeon
- Biomaterials Research Institute, Sahmyook University, Seoul 01792, Korea
| | - Michelle Yoo
- School of Science, Auckland University of Technology, Auckland 1010, New Zealand
| | - Tae-Hwan Jung
- Biomaterials Research Institute, Sahmyook University, Seoul 01792, Korea
| | - Woo-Min Jeon
- Department of Animal Biotechnology and Resource, Sahmyook University, Seoul 01792, Korea
| | - Kyoung-Sik Han
- Biomaterials Research Institute, Sahmyook University, Seoul 01792, Korea.,Department of Animal Biotechnology and Resource, Sahmyook University, Seoul 01792, Korea
| |
Collapse
|
18
|
Chen K, Wen H, Yang F, Yu Y, Gai X, Wang H, Li P, Pan W, Yang X. Study of controlled-release floating tablets of dipyridamole using the dry-coated method. Drug Dev Ind Pharm 2017; 44:116-124. [PMID: 28956647 DOI: 10.1080/03639045.2017.1386198] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Dipyridamole (DIP), having a short biological half-life, has a narrow absorption window and is primarily absorbed in the stomach. So, the purpose of this study was to prepare controlled-release floating (CRF) tablets of dipyridamole by the dry-coated method. The influence of agents with different viscosity, hydroxypropylmethylcellulose (HPMC) and polyvinylpyrollidon K30 (PVP K30) in the core tablet and low-viscosity HPMC and PVP K30 in the coating layer on drug release, were investigated. Then, a study with a three-factor, three-level orthogonal experimental design was used to optimize the formulation of the CRF tablets. After data processing, the optimized formulation was found to be: 80 mg HPMC K4M in the core tablet, 80 mg HPMC E15 in core tablet and 40 mg PVP K30 in the coating layer. Moreover, an in vitro buoyancy study showed that the optimized formulation had an excellent floating ability and could immediately float without a lag time and this lasted more than 12 h. Furthermore, an in vivo gamma scintigraphic study showed that the gastric residence time of the CRF tablet was about 8 h.
Collapse
Affiliation(s)
- Kai Chen
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Shenyang Pharmaceutical University , Shenyang , China
| | - Haoyang Wen
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Shenyang Pharmaceutical University , Shenyang , China
| | - Feifei Yang
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Shenyang Pharmaceutical University , Shenyang , China
| | - Yibin Yu
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Shenyang Pharmaceutical University , Shenyang , China
| | - Xiumei Gai
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Shenyang Pharmaceutical University , Shenyang , China
| | - Haiying Wang
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Shenyang Pharmaceutical University , Shenyang , China
| | - Pingfei Li
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Shenyang Pharmaceutical University , Shenyang , China
| | - Weisan Pan
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Shenyang Pharmaceutical University , Shenyang , China
| | - Xinggang Yang
- a Department of Pharmaceutics , School of Pharmaceutical Sciences, Shenyang Pharmaceutical University , Shenyang , China
| |
Collapse
|
19
|
Litou C, Vertzoni M, Xu W, Kesisoglou F, Reppas C. The impact of reduced gastric acid secretion on dissolution of salts of weak bases in the fasted upper gastrointestinal lumen: Data in biorelevant media and in human aspirates. Eur J Pharm Biopharm 2017; 115:94-101. [DOI: 10.1016/j.ejpb.2017.02.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2016] [Revised: 01/19/2017] [Accepted: 02/13/2017] [Indexed: 12/28/2022]
|
20
|
Berthelsen R, Byrialsen JP, Holm R, Jacobsen J, Abrahamsson B, Saabye L, Madelung P, Müllertz A. Development of a μDissolution-Permeation model with in situ drug concentration monitoring. J Drug Deliv Sci Technol 2016. [DOI: 10.1016/j.jddst.2016.06.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
21
|
Balogh A, Farkas B, Faragó K, Farkas A, Wagner I, Van assche I, Verreck G, Nagy ZK, Marosi G. Melt-Blown and Electrospun Drug-Loaded Polymer Fiber Mats for Dissolution Enhancement: A Comparative Study. J Pharm Sci 2015; 104:1767-76. [DOI: 10.1002/jps.24399] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2014] [Revised: 01/29/2015] [Accepted: 01/30/2015] [Indexed: 01/03/2023]
|
22
|
Frank KJ, Locher K, Zecevic DE, Fleth J, Wagner KG. In vivo predictive mini-scale dissolution for weak bases: Advantages of pH-shift in combination with an absorptive compartment. Eur J Pharm Sci 2014; 61:32-9. [DOI: 10.1016/j.ejps.2013.12.015] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 12/19/2013] [Accepted: 12/21/2013] [Indexed: 11/18/2022]
|
23
|
Kostewicz ES, Abrahamsson B, Brewster M, Brouwers J, Butler J, Carlert S, Dickinson PA, Dressman J, Holm R, Klein S, Mann J, McAllister M, Minekus M, Muenster U, Müllertz A, Verwei M, Vertzoni M, Weitschies W, Augustijns P. In vitro models for the prediction of in vivo performance of oral dosage forms. Eur J Pharm Sci 2014; 57:342-66. [DOI: 10.1016/j.ejps.2013.08.024] [Citation(s) in RCA: 248] [Impact Index Per Article: 24.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2013] [Revised: 08/07/2013] [Accepted: 08/13/2013] [Indexed: 11/17/2022]
|
24
|
Carlert S, Lennernäs H, Abrahamsson B. Evaluation of the use of Classical Nucleation Theory for predicting intestinal crystalline precipitation of two weakly basic BSC class II drugs. Eur J Pharm Sci 2014; 53:17-27. [DOI: 10.1016/j.ejps.2013.12.004] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 11/08/2013] [Accepted: 12/08/2013] [Indexed: 11/16/2022]
|
25
|
Higashino H, Hasegawa T, Yamamoto M, Matsui R, Masaoka Y, Kataoka M, Sakuma S, Yamashita S. In vitro-in vivo correlation of the effect of supersaturation on the intestinal absorption of BCS Class 2 drugs. Mol Pharm 2014; 11:746-54. [PMID: 24460473 DOI: 10.1021/mp400465p] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The aim of this study was to establish an in vitro method for evaluating the effect of supersaturation on oral absorption of poorly water-soluble drugs in vivo. Albendazole, dipyridamole, gefitinib, and ketoconazole were used as model drugs. Supersaturation of each drug was induced by diluting its stock solution by fasted state simulated intestinal fluid (FaSSIF) (solvent-shift method), then dissolution and precipitation profile of the drug was observed in vitro. The crystalline form of the precipitate was checked by differential scanning calorimetry (DSC). For comparison, control suspension was prepared by suspending a drug powder directly into FaSSIF (powder-suspending method). In vivo intestinal absorption of the drug was observed in rats by determined the plasma concentration after intraduodenal administration of drug suspensions. For all drugs, suspensions prepared by solvent-shift method showed significantly higher dissolved concentration in vitro than that prepared by powder-suspending method, clearly indicated the induction of supersaturation. DSC analysis revealed that crystalline form of the precipitate profoundly affects the extent and the duration of supersaturation. A rat in vivo study confirmed that the supersaturation of these drugs increased the fraction absorbed from the intestine, which corresponded well to the in vitro dissolution and precipitation profile of drugs except for ketoconazole. For ketoconazole, an in vivo absorption study was performed in rats pretreated with 1-aminobenzotriazole, a potent inhibitor of CYP mediated metabolism. CYP inhibition study suggested that the high luminal concentration of ketoconazole caused by supersaturation saturated the metabolic enzymes and further increased the systemic exposure of the absorbed drug. The additional effects of supersaturation on the absorption of ketoconazole are consistent with previous studies in humans under differing gastric pH conditions. In conclusion, effects of supersaturation on the intestinal absorption of poorly water-soluble drugs could be predicted from in vitro dissolution and a precipitation study. However if supersaturation affects the pharmacokinetic profiles of drugs, such as a first-pass metabolism, a combination with in vivo study should be required to evaluate its impact on oral bioavailability.
Collapse
Affiliation(s)
- Haruki Higashino
- Faculty of Pharmaceutical Sciences, Setsunan University , 45-1 Nagaotoge-cho, Hirakata, Osaka 573-0101, Japan
| | | | | | | | | | | | | | | |
Collapse
|
26
|
Hwang JS, Kim SH, Cho SH, Huh KM. Preparation and Characterization of Solid Dispersions of Eprosartan Using Spray Drying Method. Polymer Korea 2013. [DOI: 10.7317/pk.2013.37.4.442] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
27
|
Mitra A, Kesisoglou F. Impaired Drug Absorption Due to High Stomach pH: A Review of Strategies for Mitigation of Such Effect To Enable Pharmaceutical Product Development. Mol Pharm 2013; 10:3970-9. [PMID: 23844623 DOI: 10.1021/mp400256h] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Amitava Mitra
- Biopharmaceutics, Product Value Enhancement, Pharmaceutical Sciences and Clinical Supply, Merck & Co. Inc., West Point, Pennsylvania 19486, United States
| | - Filippos Kesisoglou
- Biopharmaceutics, Product Value Enhancement, Pharmaceutical Sciences and Clinical Supply, Merck & Co. Inc., West Point, Pennsylvania 19486, United States
| |
Collapse
|
28
|
Chauhan H, Hui-Gu C, Atef E. Correlating the Behavior of Polymers in Solution as Precipitation Inhibitor to its Amorphous Stabilization Ability in Solid Dispersions. J Pharm Sci 2013; 102:1924-1935. [DOI: 10.1002/jps.23539] [Citation(s) in RCA: 84] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2012] [Revised: 02/24/2013] [Accepted: 03/15/2013] [Indexed: 11/05/2022]
|
29
|
Giri TK, Kumar K, Alexander A, Ajazuddin, Badwaik H, Tripathi DK. A novel and alternative approach to controlled release drug delivery system based on solid dispersion technique. ACTA ACUST UNITED AC 2012. [DOI: 10.1016/j.bfopcu.2012.07.002] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
30
|
Abstract
OBJECTIVE The aim of present investigation is to enhance in vitro dissolution of poorly soluble drug glimepiride by preparing solid dispersions using modified gum karaya. MATERIALS AND METHODS Solid dispersions of drug were prepared by solvent evaporation method using modified gum karaya as carrier. Four batches of solid dispersion (SD1, SD4, SD9, and SD14) and physical mixture (PM1, PM4, PM9, and PM14) were prepared and characterized by differential scanning colorimetry (DSC), Fourier transform infrared (FTIR) spectroscopy, powder X-Ray diffraction (X-RD), and scanning electron microscopy (SEM) studies. Equilibrium solubility studies were carried out in shaker incubator for 24 h and in vitro drug release was determined using USP Dissolution Apparatus-II. RESULTS Maximum solubility and in vitro dissolution were observed with Batch SD4. No significant enhancement of dissolution characteristics were observed in the corresponding physical mixture PM4. Low viscosity with comparable swelling characteristics as compared to GK of modified form of gum karaya may lead to improvement in dissolution behavior of solid dispersion batches. Also, the conversion of crystalline form of drug to amorphous form may be a responsible factor, which was further confirmed by DSC, FTIR studies, and X-RD studies. SEM photographs of batch SD4 revealed porous nature of particle surface. CONCLUSION Modified forms of natural carriers prove beneficial in dissolution enhancement of poorly soluble drugs and exhibited a great potential in novel drug delivery systems.
Collapse
Affiliation(s)
- Manju Nagpal
- College of Pharmacy, Chitkara University, Rajpura, Patiala, Punjab, India
| | | | | | | | | | | |
Collapse
|
31
|
Ueda K, Higashi K, Limwikrant W, Sekine S, Horie T, Yamamoto K, Moribe K. Mechanistic Differences in Permeation Behavior of Supersaturated and Solubilized Solutions of Carbamazepine Revealed by Nuclear Magnetic Resonance Measurements. Mol Pharm 2012; 9:3023-33. [DOI: 10.1021/mp300083e] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Keisuke Ueda
- Graduate School of
Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675,
Japan
| | - Kenjirou Higashi
- Graduate School of
Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675,
Japan
| | - Waree Limwikrant
- Graduate School of
Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675,
Japan
| | - Shuichi Sekine
- Graduate School of
Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675,
Japan
| | - Toshiharu Horie
- Graduate School of
Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675,
Japan
| | - Keiji Yamamoto
- Graduate School of
Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675,
Japan
| | - Kunikazu Moribe
- Graduate School of
Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo-ku, Chiba, 260-8675,
Japan
| |
Collapse
|
32
|
Hou J, He X, Xu X, Shi X, Xu Y, Liu C. Application of anin vitroDDASS to evaluate oral absorption of two chemicals simultaneously: establishment of a level Ain vitro–in vivocorrelation. Drug Dev Ind Pharm 2012; 38:1305-12. [DOI: 10.3109/03639045.2011.650642] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
|
33
|
Buckley ST, Fischer SM, Fricker G, Brandl M. In vitro models to evaluate the permeability of poorly soluble drug entities: Challenges and perspectives. Eur J Pharm Sci 2012; 45:235-50. [DOI: 10.1016/j.ejps.2011.12.007] [Citation(s) in RCA: 96] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 11/26/2011] [Accepted: 12/02/2011] [Indexed: 11/16/2022]
|
34
|
Xu L, Luo Y, Feng J, Xu M, Tao X, He H, Tang X. Preparation and in vitro–in vivo evaluation of none gastric resident dipyridamole (DIP) sustained-release pellets with enhanced bioavailability. Int J Pharm 2012; 422:9-16. [DOI: 10.1016/j.ijpharm.2011.10.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 09/05/2011] [Accepted: 10/01/2011] [Indexed: 11/18/2022]
|
35
|
Guo F, Zhong H, He J, Xie B, Liu F, Xu H, Liu M, Xu C. Self-microemulsifying drug delivery system for improved oral bioavailability of dipyridamole: preparation and evaluation. Arch Pharm Res 2011; 34:1113-23. [PMID: 21811918 DOI: 10.1007/s12272-011-0709-8] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2010] [Revised: 10/31/2010] [Accepted: 11/24/2010] [Indexed: 10/17/2022]
Abstract
Dipyridamole shows poor and variable bioavailability after oral administration due to pHdependent solubility, low biomembrane permeability as well as being a substrate of P-glycoprotein. In order to improve the oral absorption of dipyridamole, a self-microemulsifying drug delivery system (SMEDDS) for dipyridamole was prepared and evaluated in vitro and in vivo. The optimum formulation was 18% oleic acid, 12% Labrafac lipophile WL 1349, 42% Solutol HS 15 and 28% isopropyl alcohol. It was found that the performance of self-microemulsification with the combination of oleic acid and Labrafac lipophile WL 1349 increased compared with just one oil. The results obtained from an in vitro dissolution assay indicated that dipyridamole in SMEDDS dissolved rapidly and completely in pH 6.8 aqueous media, while the commercial drug tablet was less soluble. An oral bioavailability study in rats showed that dipyridamole in the SMEDDS formulation had a 2.06-fold increased absorption compared with the simple drug suspension. It was evident that SMEDDS may be an effective approach to improve the oral absorption for drugs having pH-dependent solubility.
Collapse
Affiliation(s)
- Feng Guo
- Department of Pharmacy, Medical College, Nanchang University, No. 461, Bayi Road, Nanchang, Jiangxi Province 330006, China
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Arnold YE, Imanidis G, Kuentz MT. Advancing in-vitro drug precipitation testing: new process monitoring tools and a kinetic nucleation and growth model. J Pharm Pharmacol 2011; 63:333-41. [DOI: 10.1111/j.2042-7158.2010.01228.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Abstract
Objectives
Poorly soluble weak bases often precipitate during intestinal passage, potentially leading to incomplete drug absorption. The underlying in-vivo and in-vitro drug precipitation mechanisms are not well understood. Thus, new analytical tools and a kinetic nucleation and growth model were introduced to in-vitro drug precipitation testing in biorelevant media.
Methods
A drug precipitation test was used to simulate the transfer from the stomach to the intestine. Changes in the acceptor vessel were monitored using online dynamic image analysis and inline Raman spectroscopy. The concentration profiles of the model drug dipyridamole were analysed by high-performance liquid chromatography and the resulting data were fitted with a set of differential equations.
Key findings
The dynamic image analysis revealed a complex structure of the precipitated dipyridamole particles, which were described as star-like crystals or aggregates of elongated primary particles. Raman spectroscopy allowed the precipitation over time to be monitored. Using the kinetic nucleation and growth model to describe this process demonstrated perfect agreement with the experimental data.
Conclusions
The analytical methods and the kinetic model provided new insights into biorelevant drug precipitation and could in the future support formulation development.
Collapse
Affiliation(s)
- Yvonne E Arnold
- Institute of Pharma Technology, University of Applied Sciences Northwestern Switzerland, Muttenz, Switzerland
- Division of Pharmaceutical Technology, University of Basel, Basel, Switzerland
| | - Georgios Imanidis
- Institute of Pharma Technology, University of Applied Sciences Northwestern Switzerland, Muttenz, Switzerland
- Division of Pharmaceutical Technology, University of Basel, Basel, Switzerland
| | - Martin T Kuentz
- Institute of Pharma Technology, University of Applied Sciences Northwestern Switzerland, Muttenz, Switzerland
| |
Collapse
|
37
|
Carlert S, Pålsson A, Hanisch G, von Corswant C, Nilsson C, Lindfors L, Lennernäs H, Abrahamsson B. Predicting Intestinal Precipitation—A Case Example for a Basic BCS Class II Drug. Pharm Res 2010; 27:2119-30. [DOI: 10.1007/s11095-010-0213-8] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2010] [Accepted: 07/06/2010] [Indexed: 10/19/2022]
|
38
|
Affiliation(s)
- Mark McAllister
- Research Formulation, Pfizer PGRD, Sandwich, Kent, CT13 9NJ, U.K
| |
Collapse
|
39
|
Buch P, Langguth P, Kataoka M, Yamashita S. IVIVC in oral absorption for fenofibrate immediate release tablets using a dissolution/permeation system. J Pharm Sci 2009; 98:2001-9. [PMID: 18855916 DOI: 10.1002/jps.21576] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The usefulness of a dissolution/permeation (D/P) system to predict the in vivo performance of solid dosage forms containing the poorly soluble drug, fenofibrate, was studied. Biorelevant dissolution media simulating the fasted and fed state conditions of the human gastrointestinal tract were used in order to simulate the effect of food on the absorption of fenofibrate. Moreover, the results obtained from the D/P system were correlated with pharmacokinetic parameters obtained following in vivo studies in rats. The in vitro parameter (amount permeated in the D/P system) reflected well the in vivo performance in rats in terms of AUC and C(max) of fenofibric acid. This study thus demonstrates the potential of the D/P system as valuable tool for absorption screening of dosage forms for poorly soluble drugs.
Collapse
Affiliation(s)
- Philipp Buch
- Department of Pharmaceutical Technology and Biopharmaceutics, Johannes Gutenberg-University, Staudinger Weg 5, 55099 Mainz, Germany
| | | | | | | |
Collapse
|
40
|
Patel VF, Patel NM. Statistical Evaluation of Influence of Xanthan Gum and Guar Gum Blends on Dipyridamole Release from Floating Matrix Tablets. Drug Dev Ind Pharm 2008; 33:327-34. [PMID: 17454065 DOI: 10.1080/03639040601050155] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The present investigation explored the use of xanthan gum and guar gum for development of floating drug delivery system of dipyridamole using factorial design approach. The content of polymer blends (X(1)) and ratio of xanthan gum to guar gum (X(2)) were selected as independent variables. The diffusion exponent (n), release rate constant (k), percentage drug release at 1 hr (Q(1)) and 6 hr (Q(6)) were selected as dependent variables. Tablets of all batches had desired buoyancy characteristics. Multiple regression analysis with two way ANOVA revealed that both the factors had statistically significant influence on the response studied (p<0.05). Results of Tukey test showed the relative contribution of each level of different factors for the response studied. It was concluded that the ratio of xanthan to gaur gum had equal or dominant role as controlling factor on kinetics of drug release compared to content of polymer blends.
Collapse
Affiliation(s)
- Viral F Patel
- Shri B. M. Shah College of Pharmaceutical Education and Research, Modasa, Gujarat, India.
| | | |
Collapse
|
41
|
Vasconcelos T, Sarmento B, Costa P. Solid dispersions as strategy to improve oral bioavailability of poor water soluble drugs. Drug Discov Today 2007; 12:1068-75. [PMID: 18061887 DOI: 10.1016/j.drudis.2007.09.005] [Citation(s) in RCA: 991] [Impact Index Per Article: 58.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2007] [Revised: 09/05/2007] [Accepted: 09/14/2007] [Indexed: 11/24/2022]
Abstract
Solid dispersions are one of the most promising strategies to improve the oral bioavailability of poorly water soluble drugs. By reducing drug particle size to the absolute minimum, and hence improving drug wettability, bioavailability may be significantly improved. They are usually presented as amorphous products, mainly obtained by two major different methods, for example, melting and solvent evaporation. Recently, surfactants have been included to stabilize the formulations, thus avoiding drug recrystallization and potentiating their solubility. New manufacturing processes to obtain solid dispersions have also been developed to reduce the drawbacks of the initial process. In this review, it is intended to discuss the recent advances related on the area of solid dispersions.
Collapse
Affiliation(s)
- Teófilo Vasconcelos
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Porto, Rua Aníbal Cunha 164, 4050-047 Porto, Portugal.
| | | | | |
Collapse
|
42
|
Abstract
The purposes of the review are to: a) Provide a comprehensible introduction of the-state-of-the-art sciences of solubility and dissolution, b) introduce typical technologies to assess solubility and dissolution, and c) propose the best practice strategy. The theories of solubility and dissolution required in drug discovery were reviewed especially from the view point of oral absorption. The physiological conditions in the gastrointestinal fluid in humans and animals were then briefly summarized. Technologies to assess solubility and dissolution in drug discovery were then introduced. Recently, these technologies have been improved by the laboratory automation and computational technologies. Finally, the strategies to apply these technologies for a drug discovery project were discussed.
Collapse
Affiliation(s)
- Kiyohiko Sugano
- Global Research & Development, Nagoya Laboratories, Pharmaceutical R&D, Pfizer Inc., Aichi, Japan.
| | | | | | | | | | | |
Collapse
|
43
|
Motz SA, Klimundová J, Schaefer UF, Balbach S, Eichinger T, Solich P, Lehr CM. Automated measurement of permeation and dissolution of propranolol HCl tablets using sequential injection analysis. Anal Chim Acta 2006; 581:174-80. [PMID: 17386442 DOI: 10.1016/j.aca.2006.07.080] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2006] [Revised: 07/29/2006] [Accepted: 07/31/2006] [Indexed: 10/24/2022]
Abstract
Aim of this study was to automate sampling and quantification of the previously described apparatus for combined determination of dissolution and permeation through Caco-2 monolayer by means of sequential injection analysis (SIA). Native fluorescence of propranolol HCl in Krebs-Ringer buffer (KRB) was used for quantification. Sampling was done at three different locations within the apparatus at a high sampling frequency (approximately 60 h(-1)). Injection volume delivered to the fluorescence detector was 50 microL for permeation monitoring and 25 microL for dissolution monitoring. Linear regression for 50 microL injection yielded a detection limit calculated as 0.04 microg mL(-1) of propranolol HCl in KRB (R(2)>0.999). However, linearity for dissolution monitoring was not given for the complete range of concentrations and first order polynomial calibration was established (R(2)>0.9999). To conclude, the SIA system was able to monitor simultaneously dissolution and permeation of the immediate release propranolol HCl tablets and the authors succeeded in automating the apparatus for combined measurement of dissolution and permeation. In addition, the obtained data was consistent with data obtained by manual sampling followed by HPLC analysis.
Collapse
Affiliation(s)
- Stephan A Motz
- Saarland University, Biopharmaceutics and Pharmaceutical Technology, Im Stadtwald, Geb. A4.1, P.O. Box 15 11 50, 66041 Saarbruecken, Germany
| | | | | | | | | | | | | |
Collapse
|