1
|
Szafraniec J, Antosik A, Knapik-Kowalczuk J, Chmiel K, Kurek M, Gawlak K, Odrobińska J, Paluch M, Jachowicz R. The Self-Assembly Phenomenon of Poloxamers and Its Effect on the Dissolution of a Poorly Soluble Drug from Solid Dispersions Obtained by Solvent Methods. Pharmaceutics 2019; 11:E130. [PMID: 30893859 PMCID: PMC6470807 DOI: 10.3390/pharmaceutics11030130] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Revised: 03/14/2019] [Accepted: 03/15/2019] [Indexed: 12/14/2022] Open
Abstract
The self-assembly phenomenon of amphiphiles has attracted particular attention in recent years due to its wide range of applications. The formation of nanoassemblies able to solubilize sparingly water-soluble drugs was found to be a strategy to solve the problem of poor solubility of active pharmaceutical ingredients. Binary and ternary solid dispersions containing Biopharmaceutics Classification System (BCS) class II drug bicalutamide and either Poloxamer®188 or Poloxamer®407 as the surface active agents were obtained by either spray drying or solvent evaporation under reduced pressure. Both processes led to morphological changes and a reduction of particle size, as confirmed by scanning electron microscopy and laser diffraction measurements. The increase in powder wettability was confirmed by means of contact angle measurements. The effect of an alteration of the crystal structure was followed by powder X-ray diffractometry while thermal properties were determined using differential scanning calorimetry. Interestingly, bicalutamide exhibited a polymorph transition after spray drying with the poloxamer and polyvinylpyrrolidone (PVP), while the poloxamer underwent partial amorphization. Moreover, due to the surface activity of the carrier, the solid dispersions formed nanoaggregates in water, as confirmed using dynamic light scattering measurements. The aggregates measuring 200⁻300 nm in diameter were able to solubilize bicalutamide inside the hydrophobic inner parts. The self-assembly of binary systems was found to improve the amount of dissolved bicalutamide by 4- to 8-fold in comparison to untreated drug. The improvement in drug dissolution was correlated with the solubilization of poorly soluble molecules by macromolecules, as assessed using emission spectroscopy.
Collapse
Affiliation(s)
- Joanna Szafraniec
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland.
- Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Agata Antosik
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland.
| | - Justyna Knapik-Kowalczuk
- Division of Biophysics and Molecular Physics, Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland.
- Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland.
| | - Krzysztof Chmiel
- Division of Biophysics and Molecular Physics, Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland.
- Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland.
| | - Mateusz Kurek
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland.
| | - Karolina Gawlak
- Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Joanna Odrobińska
- Department of Physical Chemistry and Electrochemistry, Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Krakow, Poland.
| | - Marian Paluch
- Division of Biophysics and Molecular Physics, Institute of Physics, University of Silesia, Uniwersytecka 4, 40-007 Katowice, Poland.
- Silesian Center for Education and Interdisciplinary Research, 75 Pulku Piechoty 1a, 41-500 Chorzow, Poland.
| | - Renata Jachowicz
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Pharmacy, Jagiellonian University Medical College, Medyczna 9, 30-688 Krakow, Poland.
| |
Collapse
|
2
|
Corrêa SDAP, de Oliveira RN, Mendes TMF, Dos Santos KR, Boaventura S, Garcia VL, Jeraldo VDLS, Allegretti SM. In vitro and in vivo evaluation of six artemisinin derivatives against Schistosoma mansoni. Parasitol Res 2019; 118:505-516. [PMID: 30617587 DOI: 10.1007/s00436-018-6188-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 12/19/2018] [Indexed: 12/22/2022]
Abstract
Schistosomiasis is a tropical neglected disease whose socioeconomic impact is surpassed only by malaria. Until recently, praziquantel (PZQ) has been the only available drug, raising concerns that tolerant/resistant strains may appear. Since the discovery of the schistosomicidal potential of artemisinin (ART), new derivatives have been produced and evaluated. In this work, we evaluated the activity of ART derivatives against Schistosoma mansoni, both in vitro and in vivo. In the in vitro assay, worm survival, oviposition, and morphological alterations were evaluated. Further analysis of morphological alterations and membrane integrity was conducted using scanning electron microscopy and a cell-permeable, benzimidazole dye (Hoescht 33258) that binds to the minor groove of double stranded DNA. For the in vivo assay, artesunic acid (AcART) and dihydroartemisinin acetate (AcDQHS) were selected, since they showed the best in vitro results. Infected mice treated 21, 45, or 60 days post-infection (dpi), with a concentration of 100 mg/kg of either AcART or AcDQHS, showed a significant worm reduction (particularly in females), fewer eggs eliminated in feces, and a decrease of immature eggs in the intestinal tissues. Our results indicate that AcART and AcDQHS have some schistosomicidal activity against juvenile and adult stages of S. mansoni.
Collapse
Affiliation(s)
- Sheila de A P Corrêa
- Animal Biology Department, Biology Institute, Campinas State University (UNICAMP), Campinas, SP, Brazil
| | - Rosimeire N de Oliveira
- Animal Biology Department, Biology Institute, Campinas State University (UNICAMP), Campinas, SP, Brazil
| | - Tiago M F Mendes
- Animal Biology Department, Biology Institute, Campinas State University (UNICAMP), Campinas, SP, Brazil
| | | | - Sinésio Boaventura
- Multidisciplinary Center of Chemical Biological and Agricultural Research (CPQBA), Campinas State University (UNICAMP), Paulínia, SP, Brazil
| | - Vera Lúcia Garcia
- Multidisciplinary Center of Chemical Biological and Agricultural Research (CPQBA), Campinas State University (UNICAMP), Paulínia, SP, Brazil
| | - Verónica de L S Jeraldo
- ITP, Infectious and Parasitic Diseases Laboratory, Institute of Technology and Research, Aracaju, Sergipe, Brazil
| | - Silmara M Allegretti
- Animal Biology Department, Biology Institute, Campinas State University (UNICAMP), Campinas, SP, Brazil.
| |
Collapse
|
3
|
Optimization of formulation processes using Design Expert ® Software for preparation of polymeric blends-artesunate-amodiaquine HCl microparticles. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.02.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
4
|
Kurek M, Carnoy M, Larsen PE, Nielsen LH, Hansen O, Rades T, Schmid S, Boisen A. Nanomechanical Infrared Spectroscopy with Vibrating Filters for Pharmaceutical Analysis. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201700052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Maksymilian Kurek
- Department of Micro- and Nanotechnology; Technical University of Denmark; Ørsteds Plads, Building 345C 2800 Kgs. Lyngby Denmark
| | - Matthias Carnoy
- Department of Micro- and Nanotechnology; Technical University of Denmark; Ørsteds Plads, Building 345C 2800 Kgs. Lyngby Denmark
| | - Peter E. Larsen
- Department of Micro- and Nanotechnology; Technical University of Denmark; Ørsteds Plads, Building 345C 2800 Kgs. Lyngby Denmark
| | - Line H. Nielsen
- Department of Micro- and Nanotechnology; Technical University of Denmark; Ørsteds Plads, Building 345C 2800 Kgs. Lyngby Denmark
| | - Ole Hansen
- Department of Micro- and Nanotechnology; Technical University of Denmark; Ørsteds Plads, Building 345C 2800 Kgs. Lyngby Denmark
| | - Thomas Rades
- Department of Pharmacy; University of Copenhagen; Universitetsparken 2 2100 Copenhagen Denmark
| | - Silvan Schmid
- Institute of Sensor and Actuator Systems; TU Wien; Gusshausstrasse 27-29 1040 Vienna Austria
| | - Anja Boisen
- Department of Micro- and Nanotechnology; Technical University of Denmark; Ørsteds Plads, Building 345C 2800 Kgs. Lyngby Denmark
| |
Collapse
|
5
|
Kurek M, Carnoy M, Larsen PE, Nielsen LH, Hansen O, Rades T, Schmid S, Boisen A. Nanomechanical Infrared Spectroscopy with Vibrating Filters for Pharmaceutical Analysis. Angew Chem Int Ed Engl 2017; 56:3901-3905. [PMID: 28266106 DOI: 10.1002/anie.201700052] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2017] [Revised: 01/31/2017] [Indexed: 12/30/2022]
Abstract
Standard infrared spectroscopy techniques are well-developed and widely used. However, they typically require milligrams of sample and can involve time-consuming sample preparation. A promising alternative is represented by nanomechanical infrared spectroscopy (NAM-IR) based on the photothermal response of a nanomechanical resonator, which enables the chemical analysis of picograms of analyte directly from a liquid solution in only a few minutes. Herein, we present NAM-IR using perforated membranes (filters). The method was tested with the pharmaceutical compound indomethacin to successfully perform a chemical and morphological analysis on roughly 100 pg of sample. With an absolute estimated sensitivity of 109±15 fg, the presented method is suitable for ultrasensitive vibrational spectroscopy.
Collapse
Affiliation(s)
- Maksymilian Kurek
- Department of Micro- and Nanotechnology, Technical University of Denmark, Ørsteds Plads, Building 345C, 2800, Kgs. Lyngby, Denmark
| | - Matthias Carnoy
- Department of Micro- and Nanotechnology, Technical University of Denmark, Ørsteds Plads, Building 345C, 2800, Kgs. Lyngby, Denmark
| | - Peter E Larsen
- Department of Micro- and Nanotechnology, Technical University of Denmark, Ørsteds Plads, Building 345C, 2800, Kgs. Lyngby, Denmark
| | - Line H Nielsen
- Department of Micro- and Nanotechnology, Technical University of Denmark, Ørsteds Plads, Building 345C, 2800, Kgs. Lyngby, Denmark
| | - Ole Hansen
- Department of Micro- and Nanotechnology, Technical University of Denmark, Ørsteds Plads, Building 345C, 2800, Kgs. Lyngby, Denmark
| | - Thomas Rades
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100, Copenhagen, Denmark
| | - Silvan Schmid
- Institute of Sensor and Actuator Systems, TU Wien, Gusshausstrasse 27-29, 1040, Vienna, Austria
| | - Anja Boisen
- Department of Micro- and Nanotechnology, Technical University of Denmark, Ørsteds Plads, Building 345C, 2800, Kgs. Lyngby, Denmark
| |
Collapse
|
6
|
Tayyab Ansari M, Arshad MS, Hussain A, Ahmad Z. Improvement of solubility, dissolution and stability profile of artemether solid dispersions and self emulsified solid dispersions by solvent evaporation method. Pharm Dev Technol 2016; 23:1007-1015. [PMID: 27885872 DOI: 10.1080/10837450.2016.1265554] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The purpose of this study was to investigate changes in the water solubility of artemether; a poorly soluble drug used for the treatment of malaria. Different solid dispersions (SDs) of artemether were prepared using artemether and polyethylene glycol 6000 at ratio 12:88 (Group 1), self-emulsified solid dispersions (SESDs) containing artemether, polyethylene glycol 6000, cremophor-A-25, olive oil, hydroxypropylmethylcellulose and transcutol in the ratio 12:75:5:4:2:2, respectively (Group 2). SESDs were also prepared by substituting cremophor-A-25 in Group 2 with poloxamer 188 (noted as Group 3). Each of these preparations was formulated using physical mixing and the solvent evaporation method. Aqueous solubility of artemether improved 11-, 95- and 102-fold, while dissolution (in simulated gastric fluid) increased 3-, 13- and 14-fold, for formulation groups 1, 2 and 3, respectively. X-ray diffraction patterns of SDs indicated a decrease in peak intensities at 10° implying reduced artemether crystallinity. Scanning electron micrographs invariably revealed embedment of artemether by various excipients and a glassy appearance for solvent evaporated mixtures for all three formulation Groups. Our findings indicate improved hydrophilic interactions for drug particles yield greater solubility and dissolution in the following order for artemether formulating methods: solvent evaporation mixtures > physical mixtures > pure artemether.
Collapse
Affiliation(s)
| | | | - Altaf Hussain
- a Department of Pharmacy , Bahauddin Zakariya University , Multan , Pakistan
| | | |
Collapse
|
7
|
Siow CRS, Wan Sia Heng P, Chan LW. Application of freeze-drying in the development of oral drug delivery systems. Expert Opin Drug Deliv 2016; 13:1595-1608. [DOI: 10.1080/17425247.2016.1198767] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Carin Ru Shan Siow
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Paul Wan Sia Heng
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| | - Lai Wah Chan
- Department of Pharmacy, National University of Singapore, Singapore, Singapore
| |
Collapse
|
8
|
Development of amorphous dispersions of artemether with hydrophilic polymers via spray drying: Physicochemical and in silico studies. Asian J Pharm Sci 2016. [DOI: 10.1016/j.ajps.2015.08.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
|
9
|
Preparation and Characterization of Solid Dispersions of Artemether by Freeze-Dried Method. BIOMED RESEARCH INTERNATIONAL 2015; 2015:109563. [PMID: 26097842 PMCID: PMC4449868 DOI: 10.1155/2015/109563] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Revised: 07/15/2014] [Accepted: 08/10/2014] [Indexed: 12/02/2022]
Abstract
Solid dispersions of artemether and polyethylene glycol 6000 (PEG6000) were prepared in ratio 12 : 88 (group-1). Self-emulsified solid dispersions of artemether were prepared by using polyethylene glycol 6000, Cremophor-A25, olive oil, Transcutol, and hydroxypropyl methylcellulose (HPMC) in ratio 12 : 75 : 5 : 4 : 2 : 2, respectively (group-2). In third group, only Cremophor-A25 was replaced with Poloxamer 188 compared to group-2. The solid dispersions and self-emulsified solid dispersions were prepared by physical and freeze dried methods, respectively. All samples were characterized by X-ray diffraction, attenuated total reflectance Fourier transform infrared spectroscopy, differential scanning calorimeter, scanning electron microscopy, and solubility, dissolution, and stability studies. X-ray diffraction pattern revealed artemether complete crystalline, whereas physical mixture and freeze-dried mixture of all three groups showed reduced peak intensities. In attenuated total reflectance Fourier transform infrared spectroscopy spectra, C–H stretching vibrations of artemether were masked in all prepared samples, while C–H stretching vibrations were representative of polyethylene glycol 6000, Cremophor-A25, and Poloxamer 188. Differential scanning calorimetry showed decreased melting endotherm and increased enthalpy change (ΔH) in both physical mixture and freeze-dried mixtures of all groups. Scanning electron microscopy of freeze-dried mixtures of all samples showed glassy appearance, size reduction, and embedment, while their physical mixture showed size reduction and embedment of artemether by excipients. In group-1, solubility was improved up to 15 times, whereas group-2 showed up to 121 times increase but, in group-3, when Poloxamer 188 was used instead of Cremophor-A25, solubility of freeze-dried mixtures was increased up to 135 times. In fasted state simulated gastric fluid at pH 1.6, the dissolution of physical mixture was increased up to 12 times and freeze-dried mixtures up to 15 times. The stability of artemether was substantially enhanced in freeze-dried mixtures by using polyethylene glycol 6000, Cremophor-A25, and Poloxamer 188 of self-emulsified solid dispersions of artemether in Hank's balanced salt solution at pH 7.4.
Collapse
|
10
|
Fule RA, Meer TS, Sav AR, Amin PD. Artemether-Soluplus Hot-Melt Extrudate Solid Dispersion Systems for Solubility and Dissolution Rate Enhancement with Amorphous State Characteristics. JOURNAL OF PHARMACEUTICS 2013; 2013:151432. [PMID: 26555968 PMCID: PMC4590813 DOI: 10.1155/2013/151432] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/29/2012] [Accepted: 03/01/2013] [Indexed: 11/17/2022]
Abstract
This work studied artemether (ARTM) solid dispersion (SD) formulation using mixture of polymer excipient Soluplus, PEG 400, Lutrol F127, and Lutrol F68 melts at temperatures lower than the melting point of ARTM using a laboratory-size, single-screw rotating batch extruder. The effects of three surfactants PEG 400, Lutrol F127, and Lutrol F68 and parameters like mixing temperature, screw rotating speed, and residence time were systematically studied. SEM, XRD, and FT-IR were employed to investigate the evolution of ARTM's dissolution into the molten excipient. Differential scanning calorimetry (DSC) was used to quantitatively study the melting enthalpy evolution of the drug. The results showed that the dissolution rate increased with increasing the ratio of polymer and surfactant to that of drug. It was concluded that the dissolution of the drug in the polymer melt is a convective diffusion process and that laminar distributive mixing can significantly enhance the dissolution rate. The aqueous solubility and dissolution rate of prepared solid dispersion were significantly enhanced. In vitro antimalarial studies revealed marked improvement in IC50 values. Thus hot-melt extrusion (HME) is a promising technology for improving solubility and dissolution profile of ARTM.
Collapse
Affiliation(s)
- Ritesh A. Fule
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
| | - Tarique S. Meer
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
| | - Ajay R. Sav
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
| | - Purnima D. Amin
- Department of Pharmaceutical Sciences and Technology, Institute of Chemical Technology, Nathalal Parekh Marg, Matunga, Mumbai 400019, India
| |
Collapse
|
11
|
Pharmaceutical development and optimization of azithromycin suppository for paediatric use. Int J Pharm 2012; 441:218-26. [PMID: 23220079 PMCID: PMC3605574 DOI: 10.1016/j.ijpharm.2012.11.040] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2012] [Revised: 11/21/2012] [Accepted: 11/26/2012] [Indexed: 11/25/2022]
Abstract
Pharmaceutical development and manufacturing process optimization work was undertaken in order to propose a potential paediatric rectal formulation of azithromycin as an alternative to existing oral or injectable formulations. The target product profile was to be easy-to-use, cheap and stable in tropical conditions, with bioavailability comparable to oral forms, rapidly achieving and maintaining bactericidal concentrations. PEG solid solution suppositories were characterized in vitro using visual, HPLC, DSC, FTIR and XRD analyses. In vitro drug release and in vivo bioavailability were assessed; a study in rabbits compared the bioavailability of the optimized solid solution suppository to rectal solution and intra-venous product (as reference) and to the previous, non-optimized formulation (suspended azithromycin suppository). The bioavailability of azithromycin administered as solid solution suppositories relative to intra-venous was 43%, which compared well to the target of 38% (oral product in humans). The results of 3-month preliminary stability and feasibility studies were consistent with industrial production scale-up. This product has potential both as a classical antibiotic and as a product for use in severely ill children in rural areas. Industrial partners for further development are being sought.
Collapse
|
12
|
Ansari MT, Batty KT, Iqbal I, Sunderland VB. Improving the solubility and bioavailability of dihydroartemisinin by solid dispersions and inclusion complexes. Arch Pharm Res 2011; 34:757-65. [DOI: 10.1007/s12272-011-0509-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2010] [Revised: 10/12/2010] [Accepted: 10/18/2010] [Indexed: 10/18/2022]
|