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Gomes DM, Meirelles LMA, Araujo PM, de Sousa RWR, Ferreira PMP, Gutierrez SJC, de Medeiros MDGF, Raffin FN. Improving Riparin-A Dissolution through a Laponite Based Nanohybrid. Pharmaceutics 2023; 15:2136. [PMID: 37631350 PMCID: PMC10458571 DOI: 10.3390/pharmaceutics15082136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2023] [Revised: 07/25/2023] [Accepted: 08/08/2023] [Indexed: 08/27/2023] Open
Abstract
(1) Background: Riparin-A presents several pharmacological activities already elucidated, such as antimicrobial modulator, antileishmania, anxiolytic, anti-inflammatory, antinociceptive, and antioxidant. Even with important bioactive effects, the applicability of Riparin-A is limited due to its low solubility in water, impairing its dissolution in biological fluids. Thus, the objective of this study was to develop a nanohybrid based on Riparin-A and Laponite to obtain a better dissolution profile and evaluate its cytotoxic potential. (2) Methods: The formation of a hybrid system was highlighted by X-ray powder diffraction, infrared spectroscopy, and thermal analysis. Solubility, dissolution, and cytotoxicity studies were performed; (3) Results: An increase in the solubility and aqueous dissolution rate of Riparin-A was observed in the presence of clay. Diffractometric analysis of the hybrid system suggests the amorphization of Riparin-A, and thermal analyses indicated attenuation of decomposition and melting of the Riparin-A after interaction with clay. Furthermore, the nanosystem did not exhibit cytotoxic activity on normal and tumorigenic lines. (4) Conclusions: These results are promising for the development of the Riparin-A/Laponite nanosystem for therapeutic purposes, suggesting an increase in the range of possible routes of administration and bioavailability of this bioactive compound.
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Affiliation(s)
- Duanne Mendes Gomes
- Post Program on Pharmaceutical Sciences, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil; (D.M.G.)
| | - Lyghia Maria Araújo Meirelles
- Department of Pharmacy, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil
- Health and Quality of Life Research Laboratory (LAPESQV), University Center Santo Agostinho—UNIFSA, Teresina 64049-550, Piauí, Brazil
| | - Paulo Monteiro Araujo
- Post Program on Pharmaceutical Sciences, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil; (D.M.G.)
| | - Rayran Walter Ramos de Sousa
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil (P.M.P.F.)
| | - Paulo Michel Pinheiro Ferreira
- Laboratory of Experimental Cancerology (LabCancer), Department of Biophysics and Physiology, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil (P.M.P.F.)
| | - Stanley Juan Chavez Gutierrez
- Post Program on Pharmaceutical Sciences, Federal University of Piauí—UFPI, Teresina 64049-550, Piauí, Brazil; (D.M.G.)
| | | | - Fernanda Nervo Raffin
- Post—Program on Development and Technological Innovation in Medications, Federal University of Rio Grande do Norte—UFRN, Natal 59012-570, Rio Grande do Norte, Brazil
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Mondal S, Sirvi A, Jadhav K, Sangamwar AT. Supersaturating lipid-based solid dispersion of atazanavir provides enhanced solubilization and supersaturation in the digestive aqueous phase. Int J Pharm 2023; 638:122919. [PMID: 37011828 DOI: 10.1016/j.ijpharm.2023.122919] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 02/23/2023] [Accepted: 03/31/2023] [Indexed: 04/04/2023]
Abstract
Understanding and controlling the drug solubilization in digestive environment is of great importance in the design of lipid based solid dispersion (LBSD) for oral delivery of poorly aqueous soluble drugs. In the current study we determined the extent of drug solubilization and supersaturation of supersaturating lipid based solid dispersion which is governed by formulation variables like drug payload, lipid composition, solid carrier properties and lipid to solid carrier ratio. Initially, the impact of lipid chain length and drug payload on drug solubilization in lipid preconcentrate and dispersibility were evaluated to design liquid LbF of the model antiretroviral drug, atazanavir. The temperature induced supersaturation method enhanced the drug payload in medium chain triglyceride formulation at 60 °C. Further, the selected liquid supersaturated LbF was transformed into solid state LbF by employing different solid carriers including silica (Neusilin® US2 and Aerosil® 200), clay (Montmorillonite and Bentonite) and polymer (HPMC-AS and Kollidon® CL-M). The fabricated LBSDs were evaluated for solid state characterization to identify the physical nature of drug. In vitro digestion studies were conducted using pH-stat lipolysis method to assess the supersaturation propensity in aqueous digestive phase. Results revealed that LBSDs with silica and polymer carriers showed maximum drug solubilization throughout experiment compared to liquid LbF. The ionic interaction between drug-clay particles significantly reduced the ATZ partitioning from clay based LBSDs. LBSDs with dual purpose solid carrier like HPMC-AS and Neusilin® US2 offers the potential to improve drug solubilization of ATZ for physiologically relevant time. Lastly, we conclude that evaluation of formulation variables is crucial to achieve optimal performance of supersaturating LBSD.
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Experimental and Computational Study for the Design of Sulfathiazole Dosage Form with Clay Mineral. Pharmaceutics 2023; 15:pharmaceutics15020575. [PMID: 36839898 PMCID: PMC9967197 DOI: 10.3390/pharmaceutics15020575] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/23/2023] [Accepted: 02/01/2023] [Indexed: 02/11/2023] Open
Abstract
Sulfathiazole is an antimicrobial belonging to the family of sulfonamides, which were the first antibiotics to be discovered. Sulfathiazole is generally administered orally, and its main disadvantage is that it has low aqueous solubility, requiring high doses for its administration. This fact has led to side effects and the generation of bacterial resistance to the drug over time. The improvement of its solubility would mean not having to administer such high doses in its treatment. At the same time, montmorillonite is a natural, low-cost, non-toxic, biocompatible clay with a high adsorption capacity. It is potentially useful as a nanocarrier to design sulfathiazole dosage forms. In this work, the interaction between the drug and the clay mineral has been studied from an experimental and computational atomistic point of view to improve the drug's biopharmaceutical profile. The results showed the potential enhancement of the drug solubility due to the correct adsorption of the sulfathiazole in the clay interlayer space. As a result of the inclusion of sulfathiazole in the interlayer of the clay mineral, the solubility of the drug increased by 220% concerning the pristine drug. Experimentally, it was not possible to know the number of drug molecules adsorbed in the interlayer space or the external surface of the carrier. Theoretical studies will enable the knowledge of the stoichiometry of the drug/clay hybrids, with three molecules in the interlayer space being the most favorable process. The resultant basal spacing was in agreement with the experimental results.
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Møller A, Schultz HB, Meola TR, Joyce P, Müllertz A, Prestidge CA. The Influence of Blonanserin Supersaturation in Liquid and Silica Stabilised Self-Nanoemulsifying Drug Delivery Systems on In Vitro Solubilisation. Pharmaceutics 2023; 15:pharmaceutics15010284. [PMID: 36678919 PMCID: PMC9864080 DOI: 10.3390/pharmaceutics15010284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 01/09/2023] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Reformulating poorly water-soluble drugs as supersaturated lipid-based formulations achieves higher drug loading and potentially improves solubilisation and bioavailability. However, for the weak base blonanserin, silica solidified supersaturated lipid-based formulations have demonstrated reduced in vitro solubilisation compared to their liquid-state counterparts. Therefore, this study aimed to understand the influence of supersaturated drug load on blonanserin solubilisation from liquid and silica solidified supersaturated self-nanoemulsifying drug delivery systems (super-SNEDDS) during in vitro lipolysis. Stable liquid super-SNEDDS with varying drug loads (90-300% of the equilibrium solubility) were solidified by imbibition into porous silica microparticles (1:1 lipid: silica ratio). In vitro lipolysis revealed greater blonanserin solubilisation from liquid super-SNEDDS compared to solid at equivalent drug saturation levels, owing to strong silica-BLON/lipid interactions, evidenced by a significant decrease in blonanserin solubilisation upon addition of silica to a digesting liquid super-SNEDDS. An increase in solid super-SNEDDS drug loading led to increased solubilisation, owing to the increased drug:silica and drug:lipid ratios. Solidifying SNEDDS with silica enables the fabrication of powdered formulations with higher blonanserin loading and greater stability than liquid super-SNEDDS, however at the expense of drug solubilisation. These competing parameters need careful consideration in designing optimal super-SNEDDS for pre-clinical and clinical application.
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Affiliation(s)
- Amalie Møller
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
- Future Industries Institute, UniSA STEM, Mawson Lakes Campus, University of South Australia, Mawson Lakes, SA 5095, Australia
| | - Hayley B. Schultz
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Tahlia R. Meola
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Paul Joyce
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
- Bioneer:FARMA, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Clive A. Prestidge
- UniSA Clinical & Health Sciences, University of South Australia, Adelaide, SA 5000, Australia
- Correspondence: ; Tel.: +61-8-830-22438
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5
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de Carvalho-Guimarães FB, Correa KL, de Souza TP, Rodríguez Amado JR, Ribeiro-Costa RM, Silva-Júnior JOC. A Review of Pickering Emulsions: Perspectives and Applications. Pharmaceuticals (Basel) 2022; 15:1413. [PMID: 36422543 PMCID: PMC9698490 DOI: 10.3390/ph15111413] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/18/2022] [Accepted: 08/31/2022] [Indexed: 09/10/2023] Open
Abstract
Pickering emulsions are systems composed of two immiscible fluids stabilized by organic or inorganic solid particles. These solid particles of certain dimensions (micro- or nano-particles), and desired wettability, have been shown to be an alternative to conventional emulsifiers. The use of biodegradable and biocompatible stabilizers of natural origin, such as clay minerals, presents a promising future for the development of Pickering emulsions and, with this, they deliver some advantages, especially in the area of biomedicine. In this review, the effects and characteristics of microparticles in the preparation and properties of Pickering emulsions are presented. The objective of this review is to provide a theoretical basis for a broader type of emulsion, in addition to reviewing the main aspects related to the mechanisms and applications to promote its stability. Through this review, we highlight the use of this type of emulsion and its excellent properties as permeability promoters of solid particles, providing ideal results for local drug delivery and use in Pickering emulsions.
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Affiliation(s)
| | - Kamila Leal Correa
- Laboratory of Pharmaceutical and Cosmetic R&D, College of Pharmacy, Federal University of Pará, Belém 66075-110, Brazil
| | - Tatiane Pereira de Souza
- Laboratory of Innovation and Development in Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, Federal University of Amazonas, Manaus 69077-000, Brazil
| | - Jesus Rafael Rodríguez Amado
- Laboratory of Pharmaceutical Technology, Faculty of Pharmacy, Food and Nutrition, Federal University of Mato-Grosso do Sul, Campo Grande 79070-900, Brazil
| | - Roseane Maria Ribeiro-Costa
- Laboratory of Pharmaceutical Nanotechnology, College of Pharmacy, Federal University of Pará, Belém 66075-110, Brazil
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Sabzevari AG, Sabahi H, Nikbakht M, McInnes SJ. Development and characteristics of layered EGCG/Montmorillonite hybrid: An oral controlled-release formulation of EGCG. J Drug Deliv Sci Technol 2022. [DOI: 10.1016/j.jddst.2022.103750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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7
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Kiaee G, Dimitrakakis N, Sharifzadeh S, Kim HJ, Avery RK, Moghaddam KM, Haghniaz R, Yalcintas EP, Barros NRD, Karamikamkar S, Libanori A, Khademhosseini A, Khoshakhlagh P. Laponite-Based Nanomaterials for Drug Delivery. Adv Healthc Mater 2022; 11:e2102054. [PMID: 34990081 PMCID: PMC8986590 DOI: 10.1002/adhm.202102054] [Citation(s) in RCA: 37] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 11/29/2021] [Indexed: 11/09/2022]
Abstract
Laponite is a clay-based material composed of synthetic disk-shaped crystalline nanoparticles with highly ionic, large surface area. These characteristics enable the intercalation and dissolution of biomolecules in Laponite-based drug delivery systems. Furthermore, Laponite's innate physicochemical properties and architecture enable the development of tunable pH-responsive drug delivery systems. Laponite's coagulation capacity and cation exchangeability determine its exchange capabilities, drug encapsulation efficiency, and release profile. These parameters are exploited to design highly controlled and efficacious drug delivery platforms for sustained drug release. In this review, they provide an overview of how to design efficient delivery of therapeutics by leveraging the properties and specific interactions of various Laponite-polymer composites and drug moieties.
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Affiliation(s)
- Gita Kiaee
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, 02115, USA
| | - Nikolaos Dimitrakakis
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, 02115, USA
| | | | - Han-Jun Kim
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90024, USA
| | - Reginald K Avery
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, 02115, USA
| | | | - Reihaneh Haghniaz
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90024, USA
| | | | | | | | - Alberto Libanori
- Department of Bioengineering, University of California, Los Angeles, Los Angeles, CA, 90095, USA
| | - Ali Khademhosseini
- Terasaki Institute for Biomedical Innovation, Los Angeles, CA, 90024, USA
| | - Parastoo Khoshakhlagh
- Wyss Institute for Biologically Inspired Engineering at Harvard University, Boston, MA, 02115, USA
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8
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Functionalized Liposome and Albumin-Based Systems as Carriers for Poorly Water-Soluble Anticancer Drugs: An Updated Review. Biomedicines 2022; 10:biomedicines10020486. [PMID: 35203695 PMCID: PMC8962385 DOI: 10.3390/biomedicines10020486] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/08/2022] [Accepted: 02/14/2022] [Indexed: 12/12/2022] Open
Abstract
Cancer is one of the leading causes of death worldwide. In the available treatments, chemotherapy is one of the most used, but has several associated problems, namely the high toxicity to normal cells and the resistance acquired by cancer cells to the therapeutic agents. The scientific community has been battling against this disease, developing new strategies and new potential chemotherapeutic agents. However, new drugs often exhibit poor solubility in water, which led researchers to develop functionalized nanosystems to carry and, specifically deliver, the drugs to cancer cells, targeting overexpressed receptors, proteins, and organelles. Thus, this review is focused on the recent developments of functionalized nanosystems used to carry poorly water-soluble drugs, with special emphasis on liposomes and albumin-based nanosystems, two major classes of organic nanocarriers with formulations already approved by the U.S. Food and Drug Administration (FDA) for cancer therapeutics.
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9
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Yu S, Piao H, Rejinold NS, Jin G, Choi G, Choy JH. Niclosamide-Clay Intercalate Coated with Nonionic Polymer for Enhanced Bioavailability toward COVID-19 Treatment. Polymers (Basel) 2021; 13:polym13071044. [PMID: 33810527 PMCID: PMC8036780 DOI: 10.3390/polym13071044] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Revised: 03/22/2021] [Accepted: 03/23/2021] [Indexed: 12/24/2022] Open
Abstract
Niclosamide (NIC), a conventional anthelmintic agent, is emerging as a repurposed drug for COVID-19 treatment. However, the clinical efficacy is very limited due to its low oral bioavailability resulting from its poor aqueous solubility. In the present study, a new hybrid drug delivery system made of NIC, montmorillonite (MMT), and Tween 60 is proposed to overcome this obstacle. At first, NIC molecules were immobilized into the interlayer space of cationic clay, MMT, to form NIC–MMT hybrids, which could enhance the solubility of NIC, and then the polymer surfactant, Tween 60, was further coated on the external surface of NIC–MMT to improve the release rate and the solubility of NIC and eventually the bioavailability under gastrointestinal condition when orally administered. Finally, we have performed an in vivo pharmacokinetic study to compare the oral bioavailability of NIC for the Tween 60-coated NIC–MMT hybrid with Yomesan®, which is a commercially available NIC. Exceptionally, the Tween 60-coated NIC–MMT hybrid showed higher systemic exposure of NIC than Yomesan®. Therefore, the present NIC–MMT–Tween 60 hybrid can be a potent NIC drug formulation with enhanced solubility and bioavailability in vivo for treating Covid-19.
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Affiliation(s)
- Seungjin Yu
- Department of Chemistry, College of Science and Technology, Dankook University, Cheonan 31116, Korea;
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.P.); (N.S.R.)
| | - Huiyan Piao
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.P.); (N.S.R.)
| | - N. Sanoj Rejinold
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.P.); (N.S.R.)
| | - Geunwoo Jin
- R&D Center, CnPharm Co., Ltd., Seoul 03759, Korea;
| | - Goeun Choi
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.P.); (N.S.R.)
- College of Science and Technology, Dankook University, Cheonan 31116, Korea
- Department of Nanobiomedical Science and BK21 PLUS NBM Global Research Center for Regenerative Medicine, Dankook University, Cheonan 31116, Korea
- Correspondence: (G.C.); (J.-H.C.)
| | - Jin-Ho Choy
- Intelligent Nanohybrid Materials Laboratory (INML), Institute of Tissue Regeneration Engineering (ITREN), Dankook University, Cheonan 31116, Korea; (H.P.); (N.S.R.)
- Department of Pre-Medical Course, College of Medicine, Dankook University, Cheonan 31116, Korea
- Tokyo Tech World Research Hub Initiative (WRHI), Institute of Innovative Research, Tokyo Institute of Technology, Yokohama 226-8503, Japan
- Correspondence: (G.C.); (J.-H.C.)
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Møller A, Schultz HB, Meola TR, Müllertz A, Prestidge CA. The Influence of Solidification on the in vitro Solubilisation of Blonanserin Loaded Supersaturated Lipid-Based Oral Formulations. Eur J Pharm Sci 2021; 157:105640. [PMID: 33189902 DOI: 10.1016/j.ejps.2020.105640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 10/12/2020] [Accepted: 11/07/2020] [Indexed: 11/30/2022]
Abstract
Supersaturated silica-lipid hybrids have previously demonstrated improved in vitro solubilisation and in vivo oral bioavailability of poorly water-soluble drugs, however were only fabricated using a single lipid (LFCS type I formulations) and were not compared to their liquid precursors. This study investigated the influence of lipid formulation classification (type I vs. type II vs. type IIIA/SNEDDS) and physical state (liquid LBF vs. solidified with silica) on the in vitro solubilisation of the poorly soluble, weak base, anti-psychotic drug, blonanserin (BLON), from a supersaturated lipid-based formulation (LBF). Stable liquid supersaturated LBF were fabricated using BLON (loaded at 150% of its equilibrium solubility), and solidified through encapsulation within porous silica microparticles at a 1:1 ratio. Their physicochemical properties and in vitro solubilisation during lipolysis were compared. Supersaturated BLON was encapsulated in the non-crystalline form. All supersaturated LBF improved the solubilisation of pure BLON during lipolysis regardless of their lipid formulation type or their physical state (1.7- to 13.4-fold). SNEDDS achieved greater solubilisation than the type II formulations (1.4- to 1.7-fold). Furthermore, the liquid precursors achieved greater solubilisation than the silica solidified formulations (4.5- to 5.7-fold). Additionally, in an attempt to increase BLON solubilisation, a spray-dried SNEDDS and dual-loaded solidified super-SNEDDS solidified with silica pre-loaded with BLON was developed, however did not significantly improve solubilisation. Liquid SNEDDS were identified as the optimal oral supersaturated LBF strategy for BLON based on in vitro lipolysis studies. Solidification of LBF using silica is a viable strategy for improving stability, however for drugs such as BLON, solidification may impede in vitro release and solubilisation.
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Affiliation(s)
- Amalie Møller
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark; UniSA: Clinical & Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia
| | - Hayley B Schultz
- UniSA: Clinical & Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia
| | - Tahlia R Meola
- UniSA: Clinical & Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia
| | - Anette Müllertz
- Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark; Bioneer:FARMA, Department of Pharmacy, Faculty of Health and Medical Sciences, University of Copenhagen, 2100 Copenhagen, Denmark
| | - Clive A Prestidge
- UniSA: Clinical & Health Sciences, University of South Australia, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia.
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11
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Meola TR, Paxton K, Joyce P, Schultz HB, Prestidge CA. The effect of drug ionization on lipid-based formulations for the oral delivery of anti-psychotics. ADMET AND DMPK 2020; 8:437-451. [PMID: 35300191 PMCID: PMC8915591 DOI: 10.5599/admet.830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 07/15/2020] [Indexed: 11/18/2022] Open
Abstract
Lipid-based formulations (LBFs) are well-known to improve the oral bioavailability of poorly water-soluble drugs (PWSDs) by presenting the drug to the gastrointestinal environment in a molecularly dispersed state, thus avoiding the rate-limiting dissolution step. Risperidone and lurasidone are antipsychotics drugs which experience erratic and variable absorption, leading to a low oral bioavailability. The aim of this research was to develop and investigate the performance of risperidone and lurasidone when formulated as an emulsion and silica-lipid hybrid (SLH). Lurasidone and risperidone were dissolved in Capmul® MCM at 100% and 80% their equilibrium solubility, respectively, prior to forming a sub-micron emulsion. SLH microparticles were fabricated by spray-drying a silica stabilised sub-micron emulsion to form a solid powder. The performances of the formulations were evaluated in simulated intestinal media under digesting conditions, where the emulsion and SLH provided a 17-fold and 23-fold increase in LUR solubilisation, respectively. However, the performance of RIS was reduced by 2.2-fold when encapsulated within SLH compared to pure drug. Owing to its pKa, RIS adsorbed to the silica and thus, dissolution was significantly hindered. The results reveal that LBFs may not overcome the challenges of all PWSDs and physiochemical properties must be carefully considered when predicting drug performance.
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Affiliation(s)
- Tahlia R Meola
- UniSA: Clinical and Health Sciences, University of South Australia, City West Campus, Adelaide, South Australia 5000, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, City West Campus, Adelaide, South Australia 5000, Australia
| | - Kara Paxton
- UniSA: Clinical and Health Sciences, University of South Australia, City West Campus, Adelaide, South Australia 5000, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, City West Campus, Adelaide, South Australia 5000, Australia
| | - Paul Joyce
- UniSA: Clinical and Health Sciences, University of South Australia, City West Campus, Adelaide, South Australia 5000, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, City West Campus, Adelaide, South Australia 5000, Australia
| | - Hayley B Schultz
- UniSA: Clinical and Health Sciences, University of South Australia, City West Campus, Adelaide, South Australia 5000, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, City West Campus, Adelaide, South Australia 5000, Australia
| | - Clive A Prestidge
- UniSA: Clinical and Health Sciences, University of South Australia, City West Campus, Adelaide, South Australia 5000, Australia.,ARC Centre of Excellence in Convergent Bio-Nano Science & Technology, University of South Australia, City West Campus, Adelaide, South Australia 5000, Australia
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12
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Schultz HB, Wignall AD, Thomas N, Prestidge CA. Enhancement of abiraterone acetate oral bioavailability by supersaturated-silica lipid hybrids. Int J Pharm 2020; 582:119264. [PMID: 32278053 DOI: 10.1016/j.ijpharm.2020.119264] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/05/2020] [Accepted: 03/23/2020] [Indexed: 12/28/2022]
Abstract
Abiraterone acetate (AbA) has an oral bioavailability of <10% due to its poor water solubility. Here we investigate the performance of silica-lipid hybrids (SLH) and supersaturated SLH (super-SLH) in improving oral bioavailability of AbA. Specifically, we investigate the influence of lipid type and AbA saturation level of the equilibrium solubility in the lipid (Seq), and explore in vitro-in vivo correlation (IVIVC). An oral pharmacokinetic study was conducted in fasted Sprague-Dawley rats. Suspensions of the formulations were administered via oral gavage at an AbA dose of 25 mg/kg. Plasma samples were collected and analyzed for drug content. SLH with a saturation level of 90% Seq enhanced the oral bioavailability of unformulated AbA by 31-fold, and super-SLH with saturation levels of 150, 200 and 250% Seq, enhanced the bioavailability by 11, 10 and 7-fold, respectively. In comparison with the commercial product Zytiga, SLH (90% Seq) increased the oral bioavailability 1.43-fold whereas super-SLH showed no improvement. A reasonable IVIVC existed between the performance of unformulated AbA, SLH and super-SLH, in the in vitro lipolysis and in vivo oral pharmacokinetic studies. SLH and super-SLH significantly enhanced the oral bioavailability of AbA. Additionally, supersaturation of SLH improved drug loading but did not correlate with enhanced AbA bioavailability.
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Affiliation(s)
- Hayley B Schultz
- University of South Australia Cancer Research Institute, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia
| | - Anthony D Wignall
- University of South Australia Cancer Research Institute, Adelaide, South Australia 5000, Australia
| | - Nicky Thomas
- University of South Australia Cancer Research Institute, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia
| | - Clive A Prestidge
- University of South Australia Cancer Research Institute, Adelaide, South Australia 5000, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Mawson Lakes Campus, Mawson Lakes 5095, Australia.
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Nielsen RB, Kahnt A, Dillen L, Wuyts K, Snoeys J, Nielsen UG, Holm R, Nielsen CU. Montmorillonite-surfactant hybrid particles for modulating intestinal P-glycoprotein-mediated transport. Int J Pharm 2019; 571:118696. [DOI: 10.1016/j.ijpharm.2019.118696] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 08/23/2019] [Accepted: 09/13/2019] [Indexed: 12/01/2022]
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Schultz HB, Kovalainen M, Peressin KF, Thomas N, Prestidge CA. Supersaturated Silica-Lipid Hybrid Oral Drug Delivery Systems: Balancing Drug Loading and In Vivo Performance. J Pharmacol Exp Ther 2018; 370:742-750. [DOI: 10.1124/jpet.118.254466] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Accepted: 12/12/2018] [Indexed: 12/16/2022] Open
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15
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Dening TJ, Joyce P, Kovalainen M, Gustafsson H, Prestidge CA. Spray Dried Smectite Clay Particles as a Novel Treatment against Obesity. Pharm Res 2018; 36:21. [DOI: 10.1007/s11095-018-2552-9] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Accepted: 11/30/2018] [Indexed: 12/31/2022]
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