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Nyamba I, Sombie CB, Yabre M, Zime-Diawara H, Yameogo J, Ouedraogo S, Lechanteur A, Semde R, Evrard B. Pharmaceutical approaches for enhancing solubility and oral bioavailability of poorly soluble drugs. Eur J Pharm Biopharm 2024:114513. [PMID: 39313163 DOI: 10.1016/j.ejpb.2024.114513] [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: 06/23/2024] [Revised: 09/15/2024] [Accepted: 09/20/2024] [Indexed: 09/25/2024]
Abstract
High solubility in water and physiological fluids is an indispensable requirement for the pharmacological efficacy of an active pharmaceutical ingredient. Indeed, it is well established that pharmaceutical substances exhibiting limited solubility in water are inclined towards diminished and inconsistent absorption following oral administration, consequently resulting in variability in therapeutic outcomes. The current advancements in combinatorial chemistry and pharmaceutical design have facilitated the creation of drug candidates characterized by increased lipophilicity, elevated molecular size, and reduced aqueous solubility. Undoubtedly, the issue of poorly water-soluble medications has been progressively escalating over recent years. Indeed, 40% of the top 200 oral medications marketed in the United States, 33% of drugs listed in the US pharmacopoeia, 75% of compounds under development and 90% of new chemical entities are insufficiently water-soluble compounds. In order to address this obstacle, formulation scientists employ a variety of approaches, encompassing both physical and chemical methods such as prodrug synthesis, salt formation, solid dispersions formation, hydrotropic substances utilization, solubilizing agents incorporation, cosolvent addition, polymorphism exploration, cocrystal creation, cyclodextrins complexation, lipid formulations, particle size reduction and nanoformulation techniques. Despite the utilization of these diverse approaches, the primary reason for the failure in new drug development persists as the poor aqueous solubility of pharmaceutical compounds. This paper, therefore, delves into the foundational principles that underpin the implementation of various formulation strategies, along with a discussion on the respective advantages and drawbacks associated with each approach. Additionally, a discourse is provided regarding methodological frameworks for making informed decisions on selecting an appropriate formulation strategy to effectively tackle the key challenges posed during the development of a poorly water-soluble drug candidate.
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Affiliation(s)
- Isaïe Nyamba
- Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Université de Liège, 4000 Liège, Belgium; Laboratory of Drug Development, Center of Training, Research and Expertise in Pharmaceutical Sciences (CFOREM), Doctoral School of Sciences and Health, Université Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso; Institut Supérieur des Sciences de la Santé (INSSA), Université Nazi Boni, 01 BP 1091 Bobo-Dioulasso 01, Burkina Faso.
| | - Charles B Sombie
- Laboratory of Drug Development, Center of Training, Research and Expertise in Pharmaceutical Sciences (CFOREM), Doctoral School of Sciences and Health, Université Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Moussa Yabre
- Institut Supérieur des Sciences de la Santé (INSSA), Université Nazi Boni, 01 BP 1091 Bobo-Dioulasso 01, Burkina Faso
| | - Hermine Zime-Diawara
- Laboratory of Drug Development, Center of Training, Research and Expertise in Pharmaceutical Sciences (CFOREM), Doctoral School of Sciences and Health, Université Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Josias Yameogo
- Laboratory of Drug Development, Center of Training, Research and Expertise in Pharmaceutical Sciences (CFOREM), Doctoral School of Sciences and Health, Université Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Salfo Ouedraogo
- Laboratory of Drug Development, Center of Training, Research and Expertise in Pharmaceutical Sciences (CFOREM), Doctoral School of Sciences and Health, Université Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Anna Lechanteur
- Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Université de Liège, 4000 Liège, Belgium
| | - Rasmané Semde
- Laboratory of Drug Development, Center of Training, Research and Expertise in Pharmaceutical Sciences (CFOREM), Doctoral School of Sciences and Health, Université Joseph KI-ZERBO, 03 BP 7021 Ouagadougou 03, Burkina Faso
| | - Brigitte Evrard
- Laboratory of Pharmaceutical Technology and Biopharmacy, CIRM, Université de Liège, 4000 Liège, Belgium
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2
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Fine-Shamir N, Dahan A. Ethanol-based solubility-enabling oral drug formulation development: Accounting for the solubility-permeability interplay. Int J Pharm 2024; 653:123893. [PMID: 38346600 DOI: 10.1016/j.ijpharm.2024.123893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/19/2024]
Abstract
The aim of the current work was to investigate the key factors that govern the success/failure of an ethanol-based solubility-enabling oral drug formulation, including the effects of the ethanol on the solubility of the drug, the permeability across the intestinal membrane, the drug's dissolution in the aqueous milieu of the gastrointestinal tract (GIT), and the resulting solubility-permeability interplay. The concentration-dependent effects of ethanol-based vehicles on the solubility, the in-vitro Caco-2 permeability, the in-vivo rat permeability, and the biorelevant dissolution of the BCS class II antiepileptic drug carbamazepine were studied, and a predictive model describing the solubility-permeability relationship was developed. Significant concentration-dependent solubility increase of CBZ was obtained with increasing ethanol levels, that was accompanied by permeability decrease, both in Caco-2 and in rat perfusion studies, demonstrating a tradeoff between the increased solubility afforded by the ethanol and a concomitant permeability decrease. When ethanol absorption was accounted for, an excellent agreement was achieved between the predicted permeability and the experimental data. Biorelevant dissolution studies revealed that minimal ethanol levels of 30 % and 50 % were needed to fully dissolve 1 and 5 mg CBZ dose respectively, with no drug precipitation.In conclusion, key factors to be accounted for when developing ethanol-based formulation include the drug's solubility, permeability, the solubility-permeability interplay, and the drug dose intended to be delivered. Only the minimal amount of ethanol sufficient to solubilize the drug dose throughout the GIT should be used, and not more than that, to avoid unnecessarily permeability loss, and to maximize overall drug absorption.
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Affiliation(s)
- Noa Fine-Shamir
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel
| | - Arik Dahan
- Department of Clinical Pharmacology, School of Pharmacy, Faculty of Health Sciences, Ben-Gurion University of the Negev, Beer-Sheva 8410501, Israel.
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3
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Kim Y, Jung H, Kumar S, Paton RS, Kim S. Designing solvent systems using self-evolving solubility databases and graph neural networks. Chem Sci 2024; 15:923-939. [PMID: 38239675 PMCID: PMC10793204 DOI: 10.1039/d3sc03468b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 12/04/2023] [Indexed: 01/22/2024] Open
Abstract
Designing solvent systems is key to achieving the facile synthesis and separation of desired products from chemical processes, so many machine learning models have been developed to predict solubilities. However, breakthroughs are needed to address deficiencies in the model's predictive accuracy and generalizability; this can be addressed by expanding and integrating experimental and computational solubility databases. To maximize predictive accuracy, these two databases should not be trained separately, and they should not be simply combined without reconciling the discrepancies from different magnitudes of errors and uncertainties. Here, we introduce self-evolving solubility databases and graph neural networks developed through semi-supervised self-training approaches. Solubilities from quantum-mechanical calculations are referred to during semi-supervised learning, but they are not directly added to the experimental database. Dataset augmentation is performed from 11 637 experimental solubilities to >900 000 data points in the integrated database, while correcting for the discrepancies between experiment and computation. Our model was successfully applied to study solvent selection in organic reactions and separation processes. The accuracy (mean absolute error around 0.2 kcal mol-1 for the test set) is quantitatively useful in exploring Linear Free Energy Relationships between reaction rates and solvation free energies for 11 organic reactions. Our model also accurately predicted the partition coefficients of lignin-derived monomers and drug-like molecules. While there is room for expanding solubility predictions to transition states, radicals, charged species, and organometallic complexes, this approach will be attractive to predictive chemistry areas where experimental, computational, and other heterogeneous data should be combined.
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Affiliation(s)
- Yeonjoon Kim
- Department of Chemistry, Colorado State University Fort Collins CO 80523 USA
- Department of Chemistry, Pukyong National University Busan 48513 Republic of Korea
| | - Hojin Jung
- Department of Chemistry, Colorado State University Fort Collins CO 80523 USA
| | - Sabari Kumar
- Department of Chemistry, Colorado State University Fort Collins CO 80523 USA
| | - Robert S Paton
- Department of Chemistry, Colorado State University Fort Collins CO 80523 USA
| | - Seonah Kim
- Department of Chemistry, Colorado State University Fort Collins CO 80523 USA
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Sakamoto N, Miyata K, Fukami T. Quabodepistat (OPC-167832), a Novel Antituberculosis Drug Candidate: Enhancing Oral Bioavailability via Cocrystallization and Mechanistic Analysis of Bioavailability in Two Cocrystals. Mol Pharm 2024; 21:358-369. [PMID: 38099729 DOI: 10.1021/acs.molpharmaceut.3c01059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2024]
Abstract
Quabodepistat (code name OPC-167832) is a novel antituberculosis drug candidate. This study aimed to discover cocrystals that improve oral bioavailability and to elucidate the mechanistic differences underlying the bioavailability of different cocrystals. Screening yielded two cocrystals containing 2,5-dihydroxybenzoic acid (2,5DHBA) or 2-hydroxybenzoic acid (2HBA). In bioavailability studies in beagle dogs, both cocrystals exhibited better bioavailability than the free form; however, the extent of bioavailability of cocrystals with 2HBA (quabodepistat-2HBA) was 1.4-fold greater than that of cocrystals with 2,5DHBA (quabodepistat-2,5DHBA). Dissolution studies at pH 1.2 yielded similar profiles for both cocrystals, although the percent dissolution differed: quabodepistat-2HBA dissolved more slowly than quabodepistat-2,5DHBA. The poor solubility of quabodepistat-2HBA is likely the primary factor limiting dissolution at pH 1.2. To identify a dissolution method that maintains the bioavailability in beagle dogs, we performed pH-shift dissolution studies that mimic the dynamic pH change from the stomach to the small intestine. Quabodepistat-2HBA demonstrated supersaturation after the pH was increased to 6.8, while quabodepistat-2,5DHBA did not demonstrate supersaturation. This result was consistent with the results of bioavailability studies in beagle dogs. We conclude that a larger quantity of orally administered quabodepistat-2HBA remained in its cocrystal form while being transferred to the small intestine compared with quabodepistat-2,5DHBA.
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Affiliation(s)
- Nasa Sakamoto
- Preformulation Research Laboratory, CMC Headquarters, Otsuka Pharmaceutical Co., Ltd., Tokushima 771-0182, Japan
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
| | - Kenichi Miyata
- Preformulation Research Laboratory, CMC Headquarters, Otsuka Pharmaceutical Co., Ltd., Tokushima 771-0182, Japan
| | - Toshiro Fukami
- Department of Molecular Pharmaceutics, Meiji Pharmaceutical University, 2-522-1 Noshio, Kiyose, Tokyo 204-8588, Japan
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Elsegaie D, El-Nabarawi MA, Mahmoud HA, Teaima M, Louis D. A Comparative Study on Cyclodextrin Derivatives in Improving Oral Bioavailability of Etoricoxib as a Model Drug: Formulation and Evaluation of Solid Dispersion-Based Fast-Dissolving Tablets. Biomedicines 2023; 11:2440. [PMID: 37760881 PMCID: PMC10525456 DOI: 10.3390/biomedicines11092440] [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: 07/26/2023] [Revised: 08/17/2023] [Accepted: 08/28/2023] [Indexed: 09/29/2023] Open
Abstract
Etoricoxib, as a model drug, has a poor solubility and dissolution rate. Cyclodextrin derivatives can be used to solve such a problem. A comparative study was run on three cyclodextrin derivatives, namely β-CD, HP β-CD, and SBE β-CD, to solve the drug problem through the formulation of solid dispersions and their preparation into fast-dissolving tablets. Preparations utilized different (1:1, 1:2, and 1:4) drug:carrier ratios. Nine fast-dissolving tablets (containing 1:4 drug: carrier) were formulated using Prosolv ODT® and/or F-melt® type C as super-disintegrants. Optimized formulation was chosen based on a 32 factorial design. The responses chosen were the outcomes of the in vitro evaluation tests. The optimized formulation that had the highest desirability (0.86) was found to be SD-HP3, which was prepared from etoricoxib: HP β-CD at a 1:4 ratio using equal amounts of Prosolv ODT® and F-melt® type C. An in vivo evaluation of SD-HP3 on a rabbit model revealed its superiority over the marketed product Arcoxia®. SD-HP3 showed a significantly lower Tmax (13.3 min) and a significantly higher Cmax (9122.156 μg/mL), as well as a significantly higher AUC, than Arcoxia®. Thus, the solubility, dissolution, and bioavailability of etoricoxib were significantly enhanced.
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Affiliation(s)
- Doaa Elsegaie
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Heliopolis University, Cairo 11785, Egypt;
| | - Mohamed A. El-Nabarawi
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; (M.A.E.-N.); (H.A.M.); (M.T.)
| | - Hanaa Abdelmonem Mahmoud
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; (M.A.E.-N.); (H.A.M.); (M.T.)
| | - Mahmoud Teaima
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; (M.A.E.-N.); (H.A.M.); (M.T.)
| | - Dina Louis
- Department of Pharmaceutics and Industrial Pharmacy, Faculty of Pharmacy, Cairo University, Cairo 11562, Egypt; (M.A.E.-N.); (H.A.M.); (M.T.)
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6
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The Effect of Water Content on Lignin Solubilization in Deep Eutectic Solvents. J Mol Liq 2023. [DOI: 10.1016/j.molliq.2023.121271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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7
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SAMINENI R, CHIMAKURTHY J, KONIDALA S. Emerging Role of Biopharmaceutical Classification and Biopharmaceutical Drug Disposition System in Dosage form Development: A Systematic Review. Turk J Pharm Sci 2022; 19:706-713. [PMID: 36544401 PMCID: PMC9780568 DOI: 10.4274/tjps.galenos.2021.73554] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Biopharmaceutical classification system (BCS) is an advanced tool used for classifying medicines based on dissolution, water solubility, and intestinal permeability, which affect the absorption of active pharmaceutical ingredients (API) from immediate-release solid oral forms. It is useful to the formulation researchers to develop novel dosage forms based on modernistic rather than experimental approaches. The current review focuses on the fundamentals, objectives, guidance of BCS, characteristics of BCS drugs, their importance and applications of BCS. This review explains the challenges in drug development in terms of solubility and in vivo disposition. In the current review, new strategies for improving BCS II drug solubility as well as biopharmaceutical drug disposition properties which are utilized throughout the early stages of drug development and commercialization are mainly discussed.
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Affiliation(s)
- Ramu SAMINENI
- Vignan’s Foundation for Science, Technology and Research, Department of Sciences and Humanities, Division of Chemistry, Andhra Pradesh, India,Vignan’s Foundation for Science, Technology and Research, Faculty of Pharmacy, Department of Pharmaceutical Sciences, Andhra Pradesh, India,* Address for Correspondence: Phone: 8142853086 E-mail:
| | - Jithendra CHIMAKURTHY
- Vignan’s Foundation for Science, Technology and Research, Faculty of Pharmacy, Department of Pharmaceutical Sciences, Andhra Pradesh, India
| | - Sathish KONIDALA
- Vignan’s Foundation for Science, Technology and Research, Faculty of Pharmacy, Department of Pharmaceutical Sciences, Andhra Pradesh, India
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8
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Dash S, Rajesh P, Joshi R, Rajeswari S, Karunanithi P. Pre-irradiation of surfactants to enhance their capacity to solubilise drugs and dyes. J INDIAN CHEM SOC 2022. [DOI: 10.1016/j.jics.2022.100751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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9
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Soliman ME, Adewumi AT, Akawa OB, Subair TI, Okunlola FO, Akinsuku OE, Khan S. Simulation Models for Prediction of Bioavailability of Medicinal Drugs-the Interface Between Experiment and Computation. AAPS PharmSciTech 2022; 23:86. [PMID: 35292867 DOI: 10.1208/s12249-022-02229-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Accepted: 02/03/2022] [Indexed: 12/17/2022] Open
Abstract
The oral drug bioavailability (BA) problems have remained inevitable over the years, impairing drug efficacy and indirectly leading to eventual human morbidity and mortality. However, some conventional lab-based methods improve drug absorption leading to enhanced BA, and the recent experimental techniques are up-and-coming. Nevertheless, some have inherent drawbacks in improving the efficacy of poorly insoluble and low impermeable drugs. Drug BA and strategies to overcome these challenges were briefly highlighted. This review has significantly unravelled the different computational models for studying and predicting drug bioavailability. Several computational approaches provide mechanistic insights into the oral drug delivery system simulation of descriptors like solubility, permeability, transport protein-ligand interactions, and molecular structures. The in silico techniques have long been known still are just being applied to unravel drug bioavailability issues. Many publications have reported novel applications of the computational models towards achieving improved drug BA, including predicting gastrointestinal tract (GIT) drug absorption properties and passive intestinal membrane permeability, thus maximizing time and resources. Also, the classical molecular simulation models for free solvation energies of soluble-related processes such as solubilization, dissolutions, supersaturation, and precipitation have been used in virtual screening studies. A few of the tools are GastroPlusTM that supports biowaiver for drugs, mainly BCS class III and predicts drug compounds' absorption and pharmacokinetic process; SimCyp® simulator for mechanistic modelling and simulation of drug formulation processes; pharmacodynamics analysis on non-linear mixed-effects modelling; and mathematical models, predicting absorption potential/maximum absorption dose. This review provides in silico-experiment annexation in the drug bioavailability enhancement, possible insights that lead to critical opinion on the applications and reliability of the various in silico models as a growing tool for drug development and discovery, thus accelerating drug development processes.
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Budi HS, Anitasari S, Ulfa NM, Juliastuti WS, Aljunaid M, Ramadan DE, Muzari K, Shen YK. Topical Medicine Potency of Musa paradisiaca var. sapientum (L.) kuntze as Oral Gel for Wound Healing: An In Vitro, In Vivo Study. Eur J Dent 2022; 16:848-855. [PMID: 35181871 DOI: 10.1055/s-0041-1740226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
OBJECTIVE Topical application of ambonese banana (Musa paradisiaca var. sapientum (L.) kuntze) stem sap gel (GEGPA) on the socket wound area showed an increase in the expression of platelet-derived growth factor-BB, while decrease in the expression of matrix metalloproteinase-2 and 9. The aim of this study is to achieve standard formulation of GEGPA through stability, viscosity, distribution area, and drugs release for oral gel wound healing. MATERIALS AND METHODS This is an in vitro and in vivo study with the randomized posttest only control group design. The gel was formulated according to the composition of each group by adding hydroxypropyl methylcellulose (HPMC), Lexgard, propylene glycol, and cold water to obtain 100 g of gel. Observations were made through the following tests: stability, viscosity, distribution area, drug release, and histopathological analysis of tooth extraction wound healing. STATISTICAL ANALYSIS Data were analyzed using a one-way analysis of variance (α = 0.05) with GraphPad Prism-8 statistical software. RESULTS The study showed that the GEGPA formulation was stable against changes in consistency, color, smell, homogeneity, and pH value. There is a significant difference between groups with respect to viscosity (p = 0.0001), adhesion (p = 0.004), dispersion (p = 0.000), and fibroblast cell numbers on days 3 and 5 (p = 0.007 and p = 0.001). There is no interaction between the active ingredients and the gel base of all formulations. Formulation 3 had better properties in terms of viscosity, broad distribution, and drug release compared with other groups. Application of GEGPA to tooth extraction wounds showed a significant proliferation of fibroblast cells on days 3 and 5. CONCLUSIONS The formulation of M. paradisiaca var. sapientum (L.) kuntze extract with HPMC and propylene glycol obtained a gel preparation, GEGPA, that was organoleptically stable and met the topical gel standard for wounds in the oral cavity.
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Affiliation(s)
- Hendrik Setia Budi
- Department of Oral Biology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Silvia Anitasari
- Department of Dental Material and Devices, Faculty of Medicine, Universitas Mulawarman, Samarinda, Indonesia.,Department of Medical Microbiology, Faculty of Medicine, Universitas Mulawarman, Samarinda, Indonesia
| | | | - Wisnu Setyari Juliastuti
- Department of Oral Biology, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | | | | | - Koko Muzari
- Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia
| | - Yung-Kang Shen
- School of Dental Technology, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan
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11
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Hansen CJ, Siricilla S, Boatwright N, Rogers JH, Kumi ME, Herington J. Effects of Solvents, Emulsions, Cosolvents, and Complexions on Ex Vivo Mouse Myometrial Contractility. Reprod Sci 2022; 29:586-595. [PMID: 33852137 PMCID: PMC8782813 DOI: 10.1007/s43032-021-00576-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2021] [Accepted: 04/02/2021] [Indexed: 11/27/2022]
Abstract
A great need exists to develop tocolytic and uterotonic drugs that combat poor, labor-related maternal and fetal outcomes. A widely utilized method to assess novel compounds for their tocolytic and uterotonic efficacy is the isometric organ bath contractility assay. Unfortunately, water-insoluble compounds can be difficult to test using the physiological, buffer-based, organ bath assay. Common methods for overcoming solubility issues include solvent variation, cosolvency, surfactant or complexion use, and emulsification. However, these options for drug delivery or formulation can impact tissue function. Therefore, the goal of this study was to evaluate the ability of common solvents, surfactants, cosolvents, and emulsions to adequately solubilize compounds in the organ bath assay without affecting mouse myometrial contractility. We found that acetone, acetonitrile, and ethanol had the least effect, while dimethylacetamide, ethyl acetate, and isopropanol displayed the greatest inhibition of myometrial contractility based on area under the contractile curve analyses. The minimum concentration of surfactants, cosolvents, and human serum albumin required to solubilize nifedipine, a current tocolytic drug, resulted in extensive bubbling in the organ bath assay, precluding their use. Finally, we report that an oil-in-water base emulsion containing no drug has no statistical effect beyond the control (water), while the drug emulsion yielded the same potency and efficacy as the freely solubilized drug.
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Affiliation(s)
- Christopher J Hansen
- Department of Pediatrics, Division of Neonatology, Vanderbilt University Medical Center, 2215B Garland Ave, 1125 Light Hall, Nashville, TN, 37232, USA
| | - Shajila Siricilla
- Department of Pediatrics, Division of Neonatology, Vanderbilt University Medical Center, 2215B Garland Ave, 1125 Light Hall, Nashville, TN, 37232, USA
| | - Naoko Boatwright
- Department of Pediatrics, Division of Neonatology, Vanderbilt University Medical Center, 2215B Garland Ave, 1125 Light Hall, Nashville, TN, 37232, USA
| | - Jackson H Rogers
- Department of Pediatrics, Division of Neonatology, Vanderbilt University Medical Center, 2215B Garland Ave, 1125 Light Hall, Nashville, TN, 37232, USA
| | - Melissa E Kumi
- Department of Pediatrics, Division of Neonatology, Vanderbilt University Medical Center, 2215B Garland Ave, 1125 Light Hall, Nashville, TN, 37232, USA
| | - Jennifer Herington
- Department of Pediatrics, Division of Neonatology, Vanderbilt University Medical Center, 2215B Garland Ave, 1125 Light Hall, Nashville, TN, 37232, USA.
- Department of Pharmacology, Vanderbilt University, Nashville, TN, USA.
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12
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Volarić J, Szymanski W, Simeth NA, Feringa BL. Molecular photoswitches in aqueous environments. Chem Soc Rev 2021; 50:12377-12449. [PMID: 34590636 PMCID: PMC8591629 DOI: 10.1039/d0cs00547a] [Citation(s) in RCA: 132] [Impact Index Per Article: 44.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Indexed: 12/17/2022]
Abstract
Molecular photoswitches enable dynamic control of processes with high spatiotemporal precision, using light as external stimulus, and hence are ideal tools for different research areas spanning from chemical biology to smart materials. Photoswitches are typically organic molecules that feature extended aromatic systems to make them responsive to (visible) light. However, this renders them inherently lipophilic, while water-solubility is of crucial importance to apply photoswitchable organic molecules in biological systems, like in the rapidly emerging field of photopharmacology. Several strategies for solubilizing organic molecules in water are known, but there are not yet clear rules for applying them to photoswitchable molecules. Importantly, rendering photoswitches water-soluble has a serious impact on both their photophysical and biological properties, which must be taken into consideration when designing new systems. Altogether, these aspects pose considerable challenges for successfully applying molecular photoswitches in aqueous systems, and in particular in biologically relevant media. In this review, we focus on fully water-soluble photoswitches, such as those used in biological environments, in both in vitro and in vivo studies. We discuss the design principles and prospects for water-soluble photoswitches to inspire and enable their future applications.
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Affiliation(s)
- Jana Volarić
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
| | - Wiktor Szymanski
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
- Department of Radiology, Medical Imaging Center, University of Groningen, University Medical Centre Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Nadja A Simeth
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
- Institute for Organic and Biomolecular Chemistry, University of Göttingen, Tammannstr. 2, 37077 Göttingen, Germany
| | - Ben L Feringa
- Centre for Systems Chemistry, Stratingh Institute for Chemistry, Faculty for Science and Engineering, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands.
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13
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Kahali N, Khanam J, Ghosh N. An attempt to enhance solubility of metoclopramide base by Solid dispersion strategy and its application on development of Transdermal device. BRAZ J PHARM SCI 2021. [DOI: 10.1590/s2175-97902020000418910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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14
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Employment of Alginate Floating In Situ Gel for Controlled Delivery of Celecoxib: Solubilization and Formulation Studies. BIOMED RESEARCH INTERNATIONAL 2020; 2020:1879125. [PMID: 32596281 PMCID: PMC7296469 DOI: 10.1155/2020/1879125] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 04/25/2020] [Accepted: 05/02/2020] [Indexed: 11/26/2022]
Abstract
Celecoxib (CXB) is a COX-2-selective nonsteroidal anti-inflammatory drug used to control pain and various inflammatory conditions. CXB has limited oral bioavailability and a slow dissociation rate due to its poor water solubility. In order to enhance the oral bioavailability of CXB and reduce the frequency of administration, the present study was aimed at enhancing the aqueous solubility of CXB by a cosolvency technique and then at formulating and evaluating a CXB in situ floating gelling system for sustained oral delivery. Three cosolvents, namely, PEG 600, propylene glycol, and glycerin, at different concentrations, were used to solubilize CXB. Particle size analysis was performed to confirm the solubility of CXB in the solutions. The floating in situ gel formulations were then prepared by the incorporation of the CXB solution into sodium alginate solutions (0.25, 0.5, and 1% w/v). Formulations, in sol form, were then in vitro characterized for their physical appearance, pH, and rheological behaviors, while formulations in gel form were evaluated for their floating behavior and in vitro drug release studies. FTIR spectroscopy was performed to examine drug-polymer interaction. The selected formula was evaluated biologically for its anti-inflammatory and analgesic activities. Results revealed that the less-polar solvent PEG 600 at 80% v/v had the highest solubilization potential, and it was used to optimize the in situ gel formulation. The candidate formula (F3) was found to have the highest sodium alginate concentration (1% w/v) and showed the optimum sustained release profile with the Higuchi model release kinetics. The results from the FTIR spectroscopy analysis showed noticeable drug-polymer molecular interaction. Moreover, F3 exhibited a significantly higher percentage of paw edema inhibition at 8 h compared with the reference drug (p < 0.05). Also, it showed a sustained duration of analgesia that persisted for the entire experimental time.
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Da Silva FLO, Marques MBDF, Kato KC, Carneiro G. Nanonization techniques to overcome poor water-solubility with drugs. Expert Opin Drug Discov 2020; 15:853-864. [DOI: 10.1080/17460441.2020.1750591] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Affiliation(s)
- Flávia Lidiane Oliveira Da Silva
- Department of Pharmacy, Faculty of Biological and Health Sciences, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil
| | - Maria Betânia De Freitas Marques
- Department of Pharmacy, Faculty of Biological and Health Sciences, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil
- Department of Chemistry, Institute of Exact Sciences, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Kelly Cristina Kato
- Department of Pharmacy, Faculty of Biological and Health Sciences, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil
| | - Guilherme Carneiro
- Department of Pharmacy, Faculty of Biological and Health Sciences, Federal University of Jequitinhonha and Mucuri Valleys, Diamantina, Brazil
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Self-microemulsifying drug delivery systems of Moringa oleifera extract for enhanced dissolution of kaempferol and quercetin. ACTA PHARMACEUTICA (ZAGREB, CROATIA) 2020; 70:77-88. [PMID: 31677372 DOI: 10.2478/acph-2020-0012] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 03/15/2019] [Indexed: 01/19/2023]
Abstract
The aim of the present study was to develop self-microemulsifying drug delivery systems (SMEDDS) of the extract of Moringa oleifera, a herbal medicinal plant. Kaempferol and quercetin, the flavonoids present in the leaf extract of M. oleifera, were chosen as markers for quantification. The optimized formulation of SMEDDS consisted of propylene glycol dicaprylocaprate, polysorbate 80, and polyethylene glycol 400 (PEG 400) in a percentage ratio of 20:60:20 (m/m). SMEDDS emulsified immediately (within 20 s) after dilution in water, resulting in transparent microemulsions with a droplet size of 49 nm. SMEDDS could increase the solubility of kaempferol and quercetin to nearly 100 % within 15 min, whereas only a 30 % improvement in solubility was achieved in the case of crude extract. These results demonstrated SMEDDS to be a promising strategy to improve the solubility of M. oleifera extract-derived drugs, which, in turn, could prove beneficial to the herbal medicine field.
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Mobarak D, Salah S, Ghorab M. Improvement of dissolution of a class II poorly water-soluble drug, by developing a five-component self-nanoemulsifying drug delivery system. J Drug Deliv Sci Technol 2019. [DOI: 10.1016/j.jddst.2018.12.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Abouhussein DMN, Bahaa El Din Mahmoud D, Mohammad F E. Design of a liquid nano-sized drug delivery system with enhanced solubility of rivaroxaban for venous thromboembolism management in paediatric patients and emergency cases. J Liposome Res 2019; 29:399-412. [PMID: 30720378 DOI: 10.1080/08982104.2019.1576732] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
The increasing incidence of venous thromboembolism (VTE) in paediatric population has stimulated the development of liquid anticoagulant formulations. Thus our goal is to formulate a liquid formulation of poorly-water soluble anticoagulant, rivaroxaban (RIVA), for paediatric use and to assess the possibility of its intravenous administration in emergencies. Self-nanoemulsifying drug delivery systems (SNEDDSs) were developed and characterized. SNEDDS constituents were estimated from the saturated solubility study followed by plotting the corresponding ternary phase diagrams to determine the best self-emulsified systems. Thermodynamic stability, emulsification, dispersibility, robustness to dilution tests, in vitro dissolution, particle size, and zeta potential were executed to optimize the formulations. The optimized formulation, that composed of Capryol 90:Tween 20:PEG 300 (5:45:50), increased RIVA solubility (285.7-fold than water), it formed nanoemulsion with a particle size of 16.15 nm, PDI of 0.25 and zeta potential of -21.8. It released 100.83 ± 2.78% of RIVA after 5 min. SNEDDS was robust to dilution with oral and parenteral fluids and showed safety to human RBCs. SNEDDS showed enhanced bioavailability after oral and intravenous administration than the oral drug suspension (by 1.25 and 1.26-fold, respectively). Moreover, it exhibited enhanced anticoagulant efficacy in the prevention and treatment of carrageenan-induced thrombosis rat model.
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Affiliation(s)
- Dalia M N Abouhussein
- Pharmaceutics Department, National Organization for Drug Control and Research (NODCAR) , Giza , Egypt
| | - Dina Bahaa El Din Mahmoud
- Pharmaceutics Department, National Organization for Drug Control and Research (NODCAR) , Giza , Egypt
| | - Ebtehal Mohammad F
- Department of Pharmacology, National Organization for Drug Control and Research (NODCAR) , Giza , Egypt
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Chinta S, Rengaswamy R. Machine Learning Derived Quantitative Structure Property Relationship (QSPR) to Predict Drug Solubility in Binary Solvent Systems. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b04584] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sivadurgaprasad Chinta
- Department of Chemical Engineering, Robert Bosch Center for Data Science and AI, Indian Institute of Technology Madras, Chennai, Tamil Nadu India -600036
| | - Raghunathan Rengaswamy
- Department of Chemical Engineering, Robert Bosch Center for Data Science and AI, Indian Institute of Technology Madras, Chennai, Tamil Nadu India -600036
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Pham CV, Baek JS, Park JH, Jung SH, Kang JS, Cho CW. A thorough analysis of the effect of surfactant/s on the solubility and pharmacokinetics of (S)-zaltoprofen. Asian J Pharm Sci 2018; 14:435-444. [PMID: 32104472 PMCID: PMC7032178 DOI: 10.1016/j.ajps.2018.10.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2018] [Revised: 08/21/2018] [Accepted: 10/02/2018] [Indexed: 10/27/2022] Open
Abstract
Until now, there are no publications about the preformulation studies on (S)-zaltoprofen ((S)-ZPF). Hence, we first investigated the solubility of (S)-ZPF, screened solubilizers and performed the pharmacokinetic study of (S)-ZPF in the presence of the solubilizers. The measurement of the solubility of (S)-ZPF in 26 different solvents was carried out, including d-alpha tocopheryl polyethylene glycol 1000 succinate (TPGS), 2-hydroxypropyl-β-cyclodextrin (HPCD), and mixtures of individual solvent. The plasma concentration of (S)-ZPF and the amount of (S)-ZPF retained in stomach were determined after oral (35.0 mg/kg) and intravenous (5.0 mg/kg) administration. The solubility of (S)-ZPF showed an increase of 484-fold in TPGS compared to its aqueous solubility. There was a significant increase of AUC0-24 h for pure (S)-ZPF in the TPGS group (813.59 ± 64.17 µg⋅h/ml) in comparison with AUC0-24 h in the HPCD group (595.57 ± 71.76 µg⋅h/ml) and water group (465.57 ± 90.89 µg⋅h/ml). In addition, the Tmax of (S)-ZPF in the TPGS group was 2 h, much faster than that in the HPCD or water groups (5.50 or 5.67 h, respectively). This suggested that TPGS played a significant role in the increase of solubility and bioavailability of (S)-ZPF.
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Affiliation(s)
- Cuong Viet Pham
- College of Pharmacy and Institute of Drug Research and Development, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jong-Suep Baek
- College of Pharmacy and Institute of Drug Research and Development, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jong-Hun Park
- Department of Herbology, College of Korean Medicine, Dongguk University, Gyeongju 38066, Republic of Korea
| | - Sang-Hun Jung
- College of Pharmacy and Institute of Drug Research and Development, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Jong-Seong Kang
- College of Pharmacy and Institute of Drug Research and Development, Chungnam National University, Daejeon 34134, Republic of Korea
| | - Cheong-Weon Cho
- College of Pharmacy and Institute of Drug Research and Development, Chungnam National University, Daejeon 34134, Republic of Korea
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Parhizkar E, Emadi L, Alipour S. Development and evaluation of midazolam in situ nasal gel properties in presence of solubility enhancers at cilia-friendly pH. Macromol Res 2017. [DOI: 10.1007/s13233-017-5031-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Anwar M, Akhter S, Mallick N, Mohapatra S, Zafar S, Rizvi MMA, Ali A, Ahmad FJ. Enhanced anti-tumor efficacy of paclitaxel with PEGylated lipidic nanocapsules in presence of curcumin and poloxamer: In vitro and in vivo studies. Pharmacol Res 2016; 113:146-165. [DOI: 10.1016/j.phrs.2016.08.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 06/01/2016] [Accepted: 08/18/2016] [Indexed: 10/21/2022]
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Charumanee S, Okonogi S, Sirithunyalug J, Wolschann P, Viernstein H. Effect of Cyclodextrin Types and Co-Solvent on Solubility of a Poorly Water Soluble Drug. Sci Pharm 2016; 84:694-704. [PMID: 27763573 PMCID: PMC5198028 DOI: 10.3390/scipharm84040694] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 09/01/2016] [Indexed: 11/26/2022] Open
Abstract
The aim of the study was to investigate the solubility of piroxicam (Prx) depending on the inclusion complexation with various cyclodextrins (CDs) and on ethanol as a co-solvent. The phase-solubility method was applied to determine drug solubility in binary and ternary systems. The results showed that in systems consisting of the drug dissolved in ethanol–water mixtures, the drug solubility increased exponentially with a rising concentration of ethanol. The phase solubility measurements of the drug in aqueous solutions of CDs, β-CD and γ-CD exhibited diagrams of AL-type, whereas 2,6-dimethyl-β-CD revealed AP-type. The destabilizing effect of ethanol as a co-solvent was observed for all complexes regardless of the CD type, as a consequence of it the lowering of the complex formation constants. In systems with a higher concentration of ethanol, the drug solubility was increased in opposition to the decreasing complex formation constants. According to this study, the type of CDs played a more important role on the solubility of Prx, and the use of ethanol as a co-solvent exhibited no synergistic effect on the improvement of Prx solubility. The Prx solubility was increased again due to the better solubility in ethanol.
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Affiliation(s)
- Suporn Charumanee
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mail 50200, Thailand.
| | - Siriporn Okonogi
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mail 50200, Thailand.
| | - Jakkapan Sirithunyalug
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, Chiang Mai University, Chiang Mail 50200, Thailand.
| | - Peter Wolschann
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, Vienna 1090, Austria.
| | - Helmut Viernstein
- Department of Pharmaceutical Technology and Biopharmaceutics, Faculty of Life Sciences, University of Vienna, Althanstrasse 14, Vienna 1090, Austria.
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D’souza AA, Shegokar R. Polyethylene glycol (PEG): a versatile polymer for pharmaceutical applications. Expert Opin Drug Deliv 2016; 13:1257-75. [DOI: 10.1080/17425247.2016.1182485] [Citation(s) in RCA: 335] [Impact Index Per Article: 41.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Anisha A. D’souza
- Department of Bioscience and Bioengineering, Indian Institute of Technology, Mumbai, India
| | - Ranjita Shegokar
- Department Pharmaceutics, Biopharmaceutics & NutriCosmetics, Freie Universität Berlin, Institute of Pharmacy, Kelchstr. 31, 12169 Berlin, Germany
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Non-aqueous self-double-emulsifying drug delivery system: A new approach to enhance resveratrol solubility for effective transdermal delivery. Colloids Surf A Physicochem Eng Asp 2016. [DOI: 10.1016/j.colsurfa.2015.11.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
CONTEXT Resveratrol, a natural compound found in grapes, has potential chemotherapy effects but very low oral bioavailability in humans. OBJECTIVE To evaluate the solubility, pH stability profile, plasma protein binding (PPB) and stability in plasma for resveratrol. METHODS Solubility of resveratrol was measured in 10 common solvents at 25 °C using HPLC. The solution state pH stability of resveratrol was assessed in various United States Pharmacopeia buffers ranging from pH 2 to 10 for 24 h at 37 °C. Samples were analyzed up to 24 h. Human PPB was determined using ultracentrifugation technique. Standard solutions of drug were spiked to blank human plasma to yield final concentrations of 5, 12.5 or 25 μg/mL for determination. Finally, stability of resveratrol in human and rat plasma was also assessed at 37 °C. Aliquots of blank plasma were spiked with a standard drug concentration to yield final plasma concentration of 50 μg/mL. Samples were analyzed for resveratrol concentration up to 96 h. RESULTS Resveratrol has wide solubility ranging from 0.05 mg/mL in water to 374 mg/mL in polyethylene glycol 400 (PEG-400). Resveratrol is relatively stable above pH 6 and has maximum degradation at pH 9. The mean PPB of resveratrol is 98.3%. Resveratrol degrades in human and rat plasma in a first-order process with mean half lives of 54 and 25 h, respectively. CONCLUSION Resveratrol is more soluble in alcohol and PEG-400 and stable in acidic pH. It binds highly to plasma proteins and degrades slower in human then rat plasma.
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Affiliation(s)
- Keila Robinson
- a Department of Pharmaceutical Sciences , Texas Southern University , Houston , TX , USA
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Khalil EA, Majid SA, Suaifan GARY, Al-Akayleh FT, Sallam ASA. Physicochemical characterization of emulgel formulated with SepineoP 600, SepineoSE 68 and cosolvent mixtures. Pharm Dev Technol 2015; 21:519-27. [DOI: 10.3109/10837450.2015.1022789] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Affiliation(s)
- Enam A. Khalil
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, The University of Jordan, Amman, Jordan,
| | - Samia A. Majid
- Faculty of Pharmacy, The University of Jordan, Amman, Jordan,
| | - Ghadeer A. R. Y. Suaifan
- Department of Pharmaceutical Sciences, Faculty of Pharmacy, The University of Jordan, Amman, Jordan,
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Abstract
Etodolac (ET) (poorly soluble drug) nanosuspensions were prepared by both pH shift method and antisolvent techniques in order to increase its dissolution rate. Various stabilizers were used, namely, Tween 20 and 80, HPMC, PVP K44, PVA, PEG 400, NaCMC, andβ-cyclodextrin. The prepared nanosuspensions were characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM) and evaluated for their particle size, particle size distribution, andin vitrodissolution rate. In general, it was found that the antisolvent method for the preparation of ET nanosuspensions reduced the drug particle size to a higher extent compared to the pH shift method. The dissolution rate of ET in distilled water was markedly enhanced in the nanosized system, as more than 65% of drug dissolved in 10 min from all the nanosuspension formulations except F5 (stabilized with PVP K44) and F8 (stabilized with Tween 20), as compared to less than 20% of crude drug. Nanoparticles prepared by antisolvent method using Tween 80 as a stabilizer were selected for furtherin vivostudy. Thein vivotest demonstrated that nanoparticles of ET were well absorbed with a percentage drug absorption value 2.7 times more than that of micrometric size of crude ET.
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Moretton MA, Cohen L, Lepera L, Bernabeu E, Taira C, Höcht C, Chiappetta DA. Enhanced oral bioavailability of nevirapine within micellar nanocarriers compared with Viramune ®. Colloids Surf B Biointerfaces 2014; 122:56-65. [DOI: 10.1016/j.colsurfb.2014.06.046] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2014] [Revised: 05/25/2014] [Accepted: 06/20/2014] [Indexed: 01/28/2023]
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