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D’Abbrunzo I, Procida G, Perissutti B. Praziquantel Fifty Years on: A Comprehensive Overview of Its Solid State. Pharmaceutics 2023; 16:27. [PMID: 38258039 PMCID: PMC10821272 DOI: 10.3390/pharmaceutics16010027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2023] [Revised: 12/18/2023] [Accepted: 12/20/2023] [Indexed: 01/24/2024] Open
Abstract
This review discusses the entire progress made on the anthelmintic drug praziquantel, focusing on the solid state and, therefore, on anhydrous crystalline polymorphs, amorphous forms, and multicomponent systems (i.e., hydrates, solvates, and cocrystals). Despite having been extensively studied over the last 50 years, new polymorphs and the greater part of their cocrystals have only been identified in the past decade. Progress in crystal engineering science (e.g., the use of mechanochemistry as a solid form screening tool and more strategic structure-based methods), along with the development of analytical techniques, including Synchrotron X-ray analyses, spectroscopy, and microscopy, have furthered the identification of unknown crystal structures of the drug. Also, computational modeling has significantly contributed to the prediction and design of new cocrystals by considering structural conformations and interactions energy. Whilst the insights on praziquantel polymorphs discussed in the present review will give a significant contribution to controlling their formation during manufacturing and drug formulation, the detailed multicomponent forms will help in designing and implementing future praziquantel-based functional materials. The latter will hopefully overcome praziquantel's numerous drawbacks and exploit its potential in the field of neglected tropical diseases.
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Affiliation(s)
| | | | - Beatrice Perissutti
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Piazzale Europa 1, 34127 Trieste, Italy (G.P.)
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2
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Felimban RI, Tayeb HH, Chaudhary AG, Felemban MA, Alnadwi FH, Ali SA, Alblowi JA, ALfayez E, Bukhary D, Alissa M, Qahl SH. Utilization of a nanostructured lipid carrier encapsulating pitavastatin- Pinus densiflora oil for enhancing cytotoxicity against the gingival carcinoma HGF-1 cell line. Drug Deliv 2023; 30:83-96. [PMID: 36510636 DOI: 10.1080/10717544.2022.2155269] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
Oral squamous cell carcinoma (OSCC) is the most common epithelial tumor of the oral cavity. Gingival tumors, a unique type of OSCC, account for 10% of these malignant tumors. The antineoplastic properties of statins, including pitavastatin (PV), and the essential oil of the Pinus densiflora leaf (Pd oil) have been adequately reported. The goal of this investigation was to develop nanostructured lipid carriers (NLCs) containing PV combined with Pd oil and to determine their cytotoxicity against the cell line of human gingival fibroblasts (HGF-1). A central composite quadratic design was adopted to optimize the nanocarriers. The particle size and stability index of the nano-formulations were measured to evaluate various characteristics. TEM analysis, the entrapment efficiency, dissolution efficiency, and the cytotoxic efficiency of the optimized PV-loaded nanostructured lipid carrier drug delivery system (PV-Pd-NLCs) were evaluated. Then, the optimal PV-Pd-NLCs was incorporated into a Carbopol 940® gel base and tested for its rheological features and its properties of release and cell viability. The optimized NLCs had a particle size of 98 nm and a stability index of 89%. The gel containing optimum PV-Pd-NLCs had reasonable dissolution efficiency and acceptable rheological behavior and acquired the best cytotoxic activity against HGF-1 cell line among all the formulations developed for the study. The in vitro cell viability studies revealed a synergistic effect between PV and Pd oil in the treatment of gingival cancer. These findings illustrated that the gel containing PV-Pd-NLCs could be beneficial in the local treatment of gingival cancer.
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Affiliation(s)
- Raed I Felimban
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Innovation in Personalized Medicine (CIPM), 3D Bioprinting Unit, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hossam H Tayeb
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Innovation in Personalized Medicine (CIPM), Nanomedicine Unit, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Adeel G Chaudhary
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Innovation in Personalized Medicine (CIPM), 3D Bioprinting Unit, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Majed A Felemban
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah, Saudi Arabia.,Center of Innovation in Personalized Medicine (CIPM), 3D Bioprinting Unit, King Abdulaziz University, Jeddah, Saudi Arabia.,Centre for Artificial Intelligence in Precision Medicines, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Fuad H Alnadwi
- Department of Nuclear Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Sarah A Ali
- Department of Oral Diagnostic Sciences, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Jazia A Alblowi
- Department of Periodontology Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Eman ALfayez
- Department of Oral Biology, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Deena Bukhary
- Department of Pharmaceutics, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Mohammed Alissa
- Department of Medical Laboratory Sciences, College of Applied Medical Sciences, Prince Sattam bin Abdulaziz University, Al-Kharj, Saudi Arabia
| | - Safa H Qahl
- Department of Biology, College of Science, University of Jeddah, Jeddah, Saudi Arabia
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3
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AlMulhim FM, Nair AB, Aldhubiab B, Shah H, Shah J, Mewada V, Sreeharsha N, Jacob S. Design, Development, Evaluation, and In Vivo Performance of Buccal Films Embedded with Paliperidone-Loaded Nanostructured Lipid Carriers. Pharmaceutics 2023; 15:2530. [PMID: 38004510 PMCID: PMC10674218 DOI: 10.3390/pharmaceutics15112530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 10/09/2023] [Accepted: 10/19/2023] [Indexed: 11/26/2023] Open
Abstract
The therapeutic effectiveness of paliperidone in the treatment of schizophrenia has been limited by its poor oral bioavailability; hence, an alternative route could be appropriate. This study investigates the feasibility of developing a buccal film impregnated with paliperidone-loaded nanostructured lipid carriers (NLCs) and assesses the potential to enhance its bioavailability. Box-Behnken-based design optimization of NLCs was performed by examining the particles' physical characteristics. The polymeric film was used to load optimized NLCs, which were then assessed for their pharmaceutical properties, permeability, and pharmacokinetics. The optimization outcomes indicated that selected formulation variables had a considerable (p < 0.05) impact on responses such as particle size, entrapment efficiency, and % drug release. Desired characteristics such as a negative charge, higher entrapment efficiency, and nanoparticles with ideal size distribution were shown by optimized NLC dispersions. The developed film demonstrated excellent physico-mechanical properties, appropriate texture, good drug excipient compatibility (chemically stable formulation), and amorphous drug nature. A sustained Weibull model drug release (p < 0.0005) and superior flux (~5-fold higher, p < 0.005) were seen in NLC-loaded film compared to plain-drug-loaded film. The pharmacokinetics profile in rabbits supports the goal of buccal therapy as evidenced by significantly higher AUC0-12 (p < 0.0001) and greater relative bioavailability (236%) than the control. These results support the conclusion that paliperidone-loaded NLC buccal film has the potential to be an alternate therapy for its effective administration in the treatment of schizophrenia.
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Affiliation(s)
- Fahad Mohammed AlMulhim
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (F.M.A.); (B.A.); (N.S.)
- Department of Pharmacy Services, Johns Hopkins Aramco Health Care (JHAH), Dharan 34464, Saudi Arabia
| | - Anroop B. Nair
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (F.M.A.); (B.A.); (N.S.)
| | - Bandar Aldhubiab
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (F.M.A.); (B.A.); (N.S.)
| | - Hiral Shah
- Department of Pharmaceutics, Parul College of Pharmacy and Research, Parul University, Ahmedabad 380058, India;
| | - Jigar Shah
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad 382481, India; (J.S.); (V.M.)
| | - Vivek Mewada
- Department of Pharmaceutics, Institute of Pharmacy, Nirma University, Ahmedabad 382481, India; (J.S.); (V.M.)
| | - Nagaraja Sreeharsha
- Department of Pharmaceutical Sciences, College of Clinical Pharmacy, King Faisal University, Al-Ahsa 31982, Saudi Arabia; (F.M.A.); (B.A.); (N.S.)
- Department of Pharmaceutics, Vidya Siri College of Pharmacy, Off Sarjapura Road, Bangalore 560035, India
| | - Shery Jacob
- Department of Pharmaceutical Sciences, College of Pharmacy, Gulf Medical University, Ajman 4184, United Arab Emirates;
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Fandaruff C, Quirós-Fallas MI, Vega-Baudrit JR, Navarro-Hoyos M, Lamas DG, Araya-Sibaja AM. Saquinavir-Piperine Eutectic Mixture: Preparation, Characterization, and Dissolution Profile. Pharmaceutics 2023; 15:2446. [PMID: 37896206 PMCID: PMC10609941 DOI: 10.3390/pharmaceutics15102446] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Revised: 09/11/2023] [Accepted: 09/21/2023] [Indexed: 10/29/2023] Open
Abstract
The dissolution rate of the anti-HIV drug saquinavir base (SQV), a poorly water-soluble and extremely low absolute bioavailability drug, was improved through a eutectic mixture formation approach. A screening based on a liquid-assisted grinding technique was performed using a 1:1 molar ratio of the drug and the coformers sodium saccharinate, theobromine, nicotinic acid, nicotinamide, vanillin, vanillic acid, and piperine (PIP), followed by differential scanning calorimetry (DSC). Given that SQV-PIP was the only resulting eutectic system from the screening, both the binary phase and the Tammann diagrams were adapted to this system using DSC data of mixtures prepared from 0.1 to 1.0 molar ratios in order to determine the exact eutectic composition. The SQV-PIP system formed a eutectic at a composition of 0.6 and 0.40, respectively. Then, a solid-state characterization through DSC, powder X-ray diffraction (PXRD), including small-angle X-ray scattering (SAXS) measurements to explore the small-angle region in detail, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy (SEM), and a powder dissolution test were performed. The conventional PXRD analyses suggested that the eutectic mixture did not exhibit structural changes; however, the small-angle region explored through the SAXS instrument revealed a change in the crystal structure of one of their components. FT-IR spectra showed no molecular interaction in the solid state. Finally, the dissolution profile of SQV in the eutectic mixture was different from the dissolution of pure SQV. After 45 min, approximately 55% of the drug in the eutectic mixture was dissolved, while, for pure SQV, 42% dissolved within this time. Hence, this study concludes that the dissolution rate of SQV can be effectively improved through the approach of using PIP as a coformer.
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Affiliation(s)
- Cinira Fandaruff
- Instituto de Tecnologías Emergentes y Ciencias Aplicadas (ITECA), UNSAM-CONICET, Escuela de Ciencia y Tecnología, Laboratorio de Cristalografía Aplicada, Av. 25 de Mayo 1169, San Martín 1650, Provincia de Buenos Aires, Argentina;
| | - María Isabel Quirós-Fallas
- Laboratorio Nacional de Nanotecnología, LANOTEC-CeNAT-CONARE, San José 1174-1200, Costa Rica; (M.I.Q.-F.); (J.R.V.-B.)
- Laboratorio Biodess, Escuela de Química, Universidad de Costa Rica, San Pedro de Montes de Oca, San José 2060, Costa Rica;
| | - José Roberto Vega-Baudrit
- Laboratorio Nacional de Nanotecnología, LANOTEC-CeNAT-CONARE, San José 1174-1200, Costa Rica; (M.I.Q.-F.); (J.R.V.-B.)
| | - Mirtha Navarro-Hoyos
- Laboratorio Biodess, Escuela de Química, Universidad de Costa Rica, San Pedro de Montes de Oca, San José 2060, Costa Rica;
| | - Diego German Lamas
- Instituto de Tecnologías Emergentes y Ciencias Aplicadas (ITECA), UNSAM-CONICET, Escuela de Ciencia y Tecnología, Laboratorio de Cristalografía Aplicada, Av. 25 de Mayo 1169, San Martín 1650, Provincia de Buenos Aires, Argentina;
| | - Andrea Mariela Araya-Sibaja
- Laboratorio Nacional de Nanotecnología, LANOTEC-CeNAT-CONARE, San José 1174-1200, Costa Rica; (M.I.Q.-F.); (J.R.V.-B.)
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5
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Mukubwa GK, Safari JB, Walker RB, Krause RWM. Design, Manufacturing, Characterization and Evaluation of Lipid Nanocapsules to Enhance the Biopharmaceutical Properties of Efavirenz. Pharmaceutics 2022; 14:pharmaceutics14071318. [PMID: 35890214 PMCID: PMC9324270 DOI: 10.3390/pharmaceutics14071318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 05/27/2022] [Accepted: 05/31/2022] [Indexed: 02/05/2023] Open
Abstract
Despite their incredible contribution to fighting viral infections, antiviral viral resistance is an increasing concern and often arises due to unfavorable physicochemical and biopharmaceutical properties. To address this kind of issue, lipid nanocapsules (LNC) are developed in this study, using efavirenz (EFV) as a drug model. EFV solubility was assessed in water, Labrafac Lipophile and medium chain triglycerides oil (MCT oil). EFV turned out to be more soluble in the two latter dissolving media (solubility > 250 mg/mL); hence, given its affordability, MCT oil was used for LNC formulation. LNC were prepared using a low-energy method named phase inversion, and following a design of experiments process. This one resulted in polynomial models that predicted LNC particle size, polydispersity index and zeta potential that were, respectively, around 50 nm, below 0.2 and below −33 mV, for the optimized formulations. Once synthesized, we were able to achieve an encapsulation efficacy of 87%. On the other hand, high EFV release from the LNC carrier was obtained in neutral medium as compared to acid milieu (pH 4) with, respectively, 42 and 27% EFV release within 74 h. Other characterization techniques were applied and further supported the successful encapsulation of EFV in LNCs in an amorphous form. Stability studies revealed that the developed LNC were quite stable over the period of 28 days. Ultimately, LNCs have been demonstrated to improve the biopharmaceutical properties of EFV and could therefore be used to fight against antiviral resistance.
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Affiliation(s)
- Grady K. Mukubwa
- Department of Chemistry, Faculty of Science, Rhodes University, P.O. Box 94, Grahamstown 6140, Eastern Cape, South Africa; (G.K.M.); (J.B.S.)
- Department of Pharmaceutics, Faculty of Pharmaceutical Sciences, University of Kinshasa, Kinshasa XI B.P. 212, Democratic Republic of the Congo
| | - Justin B. Safari
- Department of Chemistry, Faculty of Science, Rhodes University, P.O. Box 94, Grahamstown 6140, Eastern Cape, South Africa; (G.K.M.); (J.B.S.)
- Department of Pharmacy, Faculty of Pharmaceutical Sciences and Public Health, Official University of Bukavu, Bukavu B.P. 570, Democratic Republic of the Congo
| | - Roderick B. Walker
- Department of Pharmaceutics, Faculty of Pharmacy, Rhodes University, P.O. Box 94, Grahamstown 6140, Eastern Cape, South Africa
- Correspondence: (R.B.W.); (R.W.M.K.)
| | - Rui W. M. Krause
- Department of Chemistry, Faculty of Science, Rhodes University, P.O. Box 94, Grahamstown 6140, Eastern Cape, South Africa; (G.K.M.); (J.B.S.)
- Center for Chemico- and Biomedical Research, Rhodes University, P.O. Box 94, Grahamstown 6140, Eastern Cape, South Africa
- Correspondence: (R.B.W.); (R.W.M.K.)
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6
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DeBoyace K, Bookwala M, Buckner IS, Zhou D, Wildfong PLD. Interpreting the Physicochemical Meaning of a Molecular Descriptor Which Is Predictive of Amorphous Solid Dispersion Formation in Polyvinylpyrrolidone Vinyl Acetate. Mol Pharm 2022; 19:303-317. [PMID: 34932358 DOI: 10.1021/acs.molpharmaceut.1c00783] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A molecular descriptor known as R3m (the R-GETAWAY third-order autocorrelation index weighted by the atomic mass) was previously identified as capable of grouping members of an 18-compound library of organic molecules that successfully formed amorphous solid dispersions (ASDs) when co-solidified with the co-polymer polyvinylpyrrolidone vinyl acetate (PVPva) at two concentrations using two preparation methods. To clarify the physical meaning of this descriptor, the R3m calculation is examined in the context of the physicochemical mechanisms of dispersion formation. The R3m equation explicitly captures information about molecular topology, atomic leverage, and molecular geometry, features which might be expected to affect the formation of stabilizing non-covalent interactions with a carrier polymer, as well as the molecular mobility of the active pharmaceutical ingredient (API) molecule. Molecules with larger R3m values tend to have more atoms, especially the heavier ones that form stronger non-covalent interactions, generally, more irregular shapes, and more complicated topology. Accordingly, these molecules are more likely to remain dispersed within PVPva. Furthermore, multiple linear regression modeling of R3m and more interpretable descriptors supported these conclusions. Finally, the utility of the R3m descriptor for predicting the formation of ASDs in PVPva was tested by analyzing the commercially available products that contain amorphous APIs dispersed in the same polymer. All of these analyses support the conclusion that the information about the API geometry, size, shape, and topological connectivity captured by R3m relates to the ability of a molecule to interact with and remain dispersed within an amorphous PVPva matrix.
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Affiliation(s)
- Kevin DeBoyace
- School of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, United States
| | - Mustafa Bookwala
- School of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, United States
| | - Ira S Buckner
- School of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, United States
| | - Deliang Zhou
- Drug Product Development, Research and Development, 1 North Waukegan Road, North Chicago, Illinois 60064, United States
| | - Peter L D Wildfong
- School of Pharmacy and Graduate School of Pharmaceutical Sciences, Duquesne University, 600 Forbes Avenue, Pittsburgh, Pennsylvania 15282, United States
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7
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Wyttenbach N, Niederquell A, Ectors P, Kuentz M. Study and Computational Modeling of Fatty Acid Effects on Drug Solubility in Lipid-Based Systems. J Pharm Sci 2021; 111:1728-1738. [PMID: 34863971 DOI: 10.1016/j.xphs.2021.11.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 11/25/2021] [Accepted: 11/26/2021] [Indexed: 11/16/2022]
Abstract
Lipid-based systems have many advantages in formulation of poorly water-soluble drugs but issues of a limited solvent capacity are often encountered in development. One of the possible solubilization approaches of especially basic drugs could be the addition of fatty acids to oils but currently, a systematic study is lacking. Therefore, the present work investigated apparently neutral and basic drugs in medium chain triglycerides (MCT) alone and with added either caproic acid (C6), caprylic acid (C8), capric acid (C10) or oleic acid (C18:1) at different levels (5 - 20%, w/w). A miniaturized solubility assay was used together with X-ray diffraction to analyze the residual solid and finally, solubility data were modeled using the conductor-like screening model for real solvents (COSMO-RS). Some drug bases had an MCT solubility of only a few mg/ml or less but addition of fatty acids provided in some formulations exceptional drug loading of up to about 20% (w/w). The solubility changes were in general more pronounced the shorter the chain length was and the longest oleic acid even displayed a negative effect in mixtures of celecoxib and fenofibrate. The COSMO-RS prediction accuracy was highly specific for the given compounds with root mean square errors (RMSE) ranging from an excellent 0.07 to a highest value of 1.12. The latter was obtained with the strongest model base pimozide for which a new solid form was found in some samples. In conclusion, targeting specific molecular interactions with the solute combined with mechanistic modeling provides new tools to advance lipid-based drug delivery.
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Affiliation(s)
- Nicole Wyttenbach
- F. Hoffmann-La Roche Ltd., Pharmaceutical Research & Early Development, Roche Innovation Center Basel, Grenzacherstr. 124, CH- 4070 Basel, Switzerland
| | - Andreas Niederquell
- University of Applied Sciences and Arts Northwest. Switzerland, Institute of Pharma Technology Hofackerstr. 30, CH- 4132 Muttenz, Switzerland
| | - Philipp Ectors
- F. Hoffmann-La Roche Ltd., Pharma Technical Development, Grenzacherstr. 124, CH-4070 Basel, Switzerland
| | - Martin Kuentz
- University of Applied Sciences and Arts Northwest. Switzerland, Institute of Pharma Technology Hofackerstr. 30, CH- 4132 Muttenz, Switzerland.
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Vertzoni M, Alsenz J, Augustijns P, Bauer-Brandl A, Bergström C, Brouwers J, Müllerz A, Perlovich G, Saal C, Sugano K, Reppas C. UNGAP best practice for improving solubility data quality of orally administered drugs. Eur J Pharm Sci 2021; 168:106043. [PMID: 34662708 DOI: 10.1016/j.ejps.2021.106043] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 10/11/2021] [Accepted: 10/13/2021] [Indexed: 11/03/2022]
Abstract
An important goal of the European Cooperation in Science and Technology (COST) Action UNGAP (UNderstanding Gastrointestinal Absorption-related Processes, www.ungap.eu) is to improve standardization of methods relating to the study of oral drug absorption. Solubility is a general term that refers to the maximum achievable concentration of a compound dissolved in a liquid medium. For orally administered drugs, relevant information on drug properties is crucial during drug (product) development and at the regulatory level. Collection of reliable and reproducible solubility data requires careful application and understanding of the limitations of the selected experimental method. In addition, the purity of a compound and its solid state form, as well as experimental parameters such as temperature of experimentation, media related factors, and sample handling procedures can affect data quality. In this paper, an international consensus developed by the COST UNGAP network on recommendations for collecting high quality solubility data for the development of orally administered drugs is proposed.
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Affiliation(s)
- M Vertzoni
- National and Kapodistrian University of Athens, Department of Pharmacy, Zografou, Greece
| | - J Alsenz
- Roche Pharmaceutical Research & Early Development, Basel, Switzerland
| | - P Augustijns
- KU Leuven, Drug Delivery and Disposition, Leuven, Belgium
| | - A Bauer-Brandl
- University of Southern Denmark, Department of Physics Chemistry and Pharmacy, Odense, Denmark
| | - Cas Bergström
- Uppsala University, Department of Pharmacy, Uppsala, Sweden
| | - J Brouwers
- KU Leuven, Drug Delivery and Disposition, Leuven, Belgium
| | - A Müllerz
- University of Copenhagen, Department of Pharmacy, Copenhagen, Denmark
| | - G Perlovich
- The Russian Academy of Sciences, Institute of Solution Chemistry, Department of Physical Chemistry of Drugs, Ivanovo, Russia
| | - C Saal
- Merck KGaA, Analytics Healthcare, Darmstadt, Germany
| | - K Sugano
- Ritsumeikan University, College of Pharmaceutical Sciences, Kusatsu, Japan
| | - C Reppas
- National and Kapodistrian University of Athens, Department of Pharmacy, Zografou, Greece.
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9
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El-Hawari L, Bunjes H. Premix Membrane Emulsification: Preparation and Stability of Medium-Chain Triglyceride Emulsions with Droplet Sizes below 100 nm. Molecules 2021; 26:6029. [PMID: 34641572 PMCID: PMC8512003 DOI: 10.3390/molecules26196029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/29/2021] [Accepted: 10/01/2021] [Indexed: 11/23/2022] Open
Abstract
Premix membrane emulsification is a promising method for the production of colloidal oil-in-water emulsions as drug carrier systems for intravenous administration. The present study investigated the possibility of preparing medium-chain triglyceride emulsions with a mean particle size below 100 nm and a narrow particle size distribution using sucrose laurate as an emulsifier. To manufacture the emulsions, a coarse pre-emulsion was repeatedly extruded through alumina membranes (Anodisc™) of 200 nm, 100 nm and 20 nm nominal pore size. When Anodisc™ membranes with 20 nm pore size were employed, nanoemulsions with z-average diameters of about 50 nm to 90 nm and polydispersity indices smaller than 0.08 could be obtained. Particle growth due to Ostwald ripening was observed over 18 weeks of storage. The Ostwald ripening rate linearly depended on the emulsifier concentration and the concentration of free emulsifier, indicating that micelles in the aqueous phase accelerated the Ostwald ripening process. Long-term stability of the nanoemulsions could be achieved by using a minimised emulsifier concentration or by osmotic stabilisation with soybean oil added in a mass ratio of 1:1 to the lipid phase.
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Affiliation(s)
- Lara El-Hawari
- Institut für Pharmazeutische Technologie und Biopharmazie, Technische Universität Braunschweig, Mendelssohnstraße 1, D-38106 Braunschweig, Germany;
- Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Straße 35a, D-38106 Braunschweig, Germany
| | - Heike Bunjes
- Institut für Pharmazeutische Technologie und Biopharmazie, Technische Universität Braunschweig, Mendelssohnstraße 1, D-38106 Braunschweig, Germany;
- Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Straße 35a, D-38106 Braunschweig, Germany
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Bennett-Lenane H, Griffin BT, O'Shea JP. Machine learning methods for prediction of food effects on bioavailability: A comparison of support vector machines and artificial neural networks. Eur J Pharm Sci 2021; 168:106018. [PMID: 34563654 DOI: 10.1016/j.ejps.2021.106018] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Revised: 09/06/2021] [Accepted: 09/22/2021] [Indexed: 12/13/2022]
Abstract
Despite countless advances in recent decades across various in vitro, in vivo and in silico tools, anticipation of whether a drug will show a human food effect (FE) remains challenging. One means to predict potential FE involves probing any dependence between FE and drug properties. Accordingly, this study explored the potential for two machine learning (ML) algorithms to predict likely FE. Using a collated database of drugs licensed from 2016-2020, drugs were classified into three groups; positive, negative or no FE. Greater than 250 drug properties were predicted for each drug which were used to train predictive models using Support Vector Machine (SVM) and Artificial Neural Network (ANN) algorithms. When compared, ANN outperformed SVM for FE classification upon training (82%, 72%) and testing (72%, 69%). Both models demonstrated higher FE prediction accuracy than the Biopharmaceutics Classification System (BCS) (46%). This exploratory work provided new insights into the connection between FE and drug properties as the Octanol Water Partition Coefficient (S+logP), Number of Hydrogen Bond Donors (HBD), Topological Polar Surface Area (T_PSA) and Dose (mg) were all significant for prediction. Overall, this study demonstrated the utility of ML to facilitate early anticipation of likely FE in pre-clinical development using four well-known drug properties.
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Bennett-Lenane H, O'Shea JP, Murray JD, Ilie AR, Holm R, Kuentz M, Griffin BT. Artificial Neural Networks to Predict the Apparent Degree of Supersaturation in Supersaturated Lipid-Based Formulations: A Pilot Study. Pharmaceutics 2021; 13:1398. [PMID: 34575483 DOI: 10.3390/pharmaceutics13091398] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 08/30/2021] [Accepted: 09/01/2021] [Indexed: 11/16/2022] Open
Abstract
In response to the increasing application of machine learning (ML) across many facets of pharmaceutical development, this pilot study investigated if ML, using artificial neural networks (ANNs), could predict the apparent degree of supersaturation (aDS) from two supersaturated LBFs (sLBFs). Accuracy was compared to partial least squares (PLS) regression models. Equilibrium solubility in Capmul MCM and Maisine CC was obtained for 21 poorly water-soluble drugs at ambient temperature and 60 °C to calculate the aDS ratio. These aDS ratios and drug descriptors were used to train the ML models. When compared, the ANNs outperformed PLS for both sLBFCapmulMC (r2 0.90 vs. 0.56) and sLBFMaisineLC (r2 0.83 vs. 0.62), displaying smaller root mean square errors (RMSEs) and residuals upon training and testing. Across all the models, the descriptors involving reactivity and electron density were most important for prediction. This pilot study showed that ML can be employed to predict the propensity for supersaturation in LBFs, but even larger datasets need to be evaluated to draw final conclusions.
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Seep L, Bonin A, Meier K, Diedam H, Göller AH. Ensemble completeness in conformer sampling: the case of small macrocycles. J Cheminform 2021; 13:55. [PMID: 34325738 PMCID: PMC8320181 DOI: 10.1186/s13321-021-00524-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Accepted: 06/05/2021] [Indexed: 11/18/2022] Open
Abstract
In this study we compare the three algorithms for the generation of conformer ensembles Biovia BEST, Schrödinger Prime macrocycle sampling (PMM) and Conformator (CONF) form the University of Hamburg, with ensembles derived for exhaustive molecular dynamics simulations applied to a dataset of 7 small macrocycles in two charge states and three solvents. Ensemble completeness is a prerequisite to allow for the selection of relevant diverse conformers for many applications in computational chemistry. We apply conformation maps using principal component analysis based on ring torsions. Our major finding critical for all applications of conformer ensembles in any computational study is that maps derived from MD with explicit solvent are significantly distinct between macrocycles, charge states and solvents, whereas the maps for post-optimized conformers using implicit solvent models from all generator algorithms are very similar independent of the solvent. We apply three metrics for the quantification of the relative covered ensemble space, namely cluster overlap, variance statistics, and a novel metric, Mahalanobis distance, showing that post-optimized MD ensembles cover a significantly larger conformational space than the generator ensembles, with the ranking PMM > BEST >> CONF. Furthermore, we find that the distributions of 3D polar surface areas are very similar for all macrocycles independent of charge state and solvent, except for the smaller and more strained compound 7, and that there is also no obvious correlation between 3D PSA and intramolecular hydrogen bond count distributions.
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Affiliation(s)
- Lea Seep
- Pharmaceuticals R&D, Digital Technologies, Bayer AG, 42096, Wuppertal, Germany
| | - Anne Bonin
- Pharmaceuticals R&D, Digital Technologies, Bayer AG, 42096, Wuppertal, Germany
| | - Katharina Meier
- Pharmaceuticals R&D, Digital Technologies, Bayer AG, 42096, Wuppertal, Germany
| | - Holger Diedam
- Engineering & Technology, Applied Mathematics, Bayer AG, 51368, Leverkusen, Germany
| | - Andreas H Göller
- Pharmaceuticals R&D, Digital Technologies, Bayer AG, 42096, Wuppertal, Germany.
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Bennett-Lenane H, Jørgensen JR, Koehl NJ, Henze LJ, O'Shea JP, Müllertz A, Griffin BT. Exploring porcine gastric and intestinal fluids using microscopic and solubility estimates: Impact of placebo self-emulsifying drug delivery system administration to inform bio-predictive in vitro tools. Eur J Pharm Sci 2021; 161:105778. [PMID: 33647402 DOI: 10.1016/j.ejps.2021.105778] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/22/2021] [Accepted: 02/23/2021] [Indexed: 02/09/2023]
Abstract
Validation and characterisation of in vitro and pre-clinical animal models to support bio-enabling formulation development is of paramount importance. In this work, post-mortem gastric and small intestinal fluids were collected in the fasted, fed state and at five sample-points post administration of a placebo Self-Emulsifying Drug Delivery System (SEDDS) in the fasted state to pigs. Cryo-TEM and Negative Stain-TEM were used for ultrastructure characterisation. Ex vivo solubility of fenofibrate was determined in the fasted-state, fed-state and post-SEDDS administration. Highest observed ex vivo drug solubility in intestinal fluids after SEDDS administration was used for optimising the biorelevant in vitro conditions to determine maximum solubility. Under microscopic evaluation, fasted, fed and SEDDS fluids resulted in different colloidal structures. Drug solubility appeared highest 1 hour post SEDDS administration, corresponding with presence of SEDDS lipid droplets. A 1:200 dispersion of SEDDS in biorelevant media matched the highest observed ex vivo solubility upon SEDDS administration. Overall, impacts of this study include increasing evidence for the pig preclinical model to mimic drug solubility in humans, observations that SEDDS administration may poorly mimic colloidal structures observed under fed state, while microscopic and solubility porcine assessments provided a framework for increasingly bio-predictive in vitro tools.
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Affiliation(s)
| | - Jacob R Jørgensen
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen Ø, Denmark
| | - Niklas J Koehl
- School of Pharmacy, University College Cork, Cork, Ireland
| | - Laura J Henze
- School of Pharmacy, University College Cork, Cork, Ireland
| | | | - Anette Müllertz
- Department of Pharmacy, University of Copenhagen, Universitetsparken 2, 2100 Copenhagen Ø, Denmark
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Abstract
In this study, the general processability of cannabidiol (CBD) in colloidal lipid carriers was investigated. Due to its many pharmacological effects, the pharmaceutical use of this poorly water-soluble drug is currently under intensive research and colloidal lipid emulsions are a well-established formulation option for such lipophilic substances. To obtain a better understanding of the formulability of CBD in lipid emulsions, different aspects of CBD loading and its interaction with the emulsion droplets were investigated. Very high drug loads (>40% related to lipid content) could be achieved in emulsions of medium chain triglycerides, rapeseed oil, soybean oil and trimyristin. The maximum CBD load depended on the type of lipid matrix. CBD loading increased the particle size and the density of the lipid matrix. The loading capacity of a trimyristin emulsion for CBD was superior to that of a suspension of solid lipid nanoparticles based on trimyristin (69% vs. 30% related to the lipid matrix). In addition to its localization within the lipid core of the emulsion droplets, cannabidiol was associated with the droplet interface to a remarkable extent. According to a stress test, CBD destabilized the emulsions, with phospholipid-stabilized emulsions being more stable than poloxamer-stabilized ones. Furthermore, it was possible to produce emulsions with pure CBD as the dispersed phase, since CBD demonstrated such a pronounced supercooling tendency that it did not recrystallize, even if cooled to -60 °C.
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Affiliation(s)
- Nadine Monika Francke
- Institute of Pharmaceutical Technology and Biopharmaceutics, Technische Universität Braunschweig, Mendelssohnstraße 1, 38106 Braunschweig, Germany;
| | - Frederic Schneider
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstraße 55, 38106 Braunschweig, Germany; (F.S.); (K.B.)
| | - Knut Baumann
- Institute of Medicinal and Pharmaceutical Chemistry, Technische Universität Braunschweig, Beethovenstraße 55, 38106 Braunschweig, Germany; (F.S.); (K.B.)
- Center of Pharmaceutical Engineering (PVZ), Technische Universität Braunschweig, Franz-Liszt-Straße 35a, 38106 Braunschweig, Germany
| | - Heike Bunjes
- Institute of Pharmaceutical Technology and Biopharmaceutics, Technische Universität Braunschweig, Mendelssohnstraße 1, 38106 Braunschweig, Germany;
- Center of Pharmaceutical Engineering (PVZ), Technische Universität Braunschweig, Franz-Liszt-Straße 35a, 38106 Braunschweig, Germany
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Brinkmann J, Becker I, Kroll P, Luebbert C, Sadowski G. Predicting the API partitioning between lipid-based drug delivery systems and water. Int J Pharm 2021; 595:120266. [PMID: 33486017 DOI: 10.1016/j.ijpharm.2021.120266] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2020] [Revised: 01/06/2021] [Accepted: 01/08/2021] [Indexed: 10/22/2022]
Abstract
Partitioning tests in water are early-stage standard experiments during the development of pharmaceutical formulations, e.g. of lipid-based drug delivery system (LBDDS). The partitioning behavior of the active pharmaceutical ingredient (API) between the fatty phase and the aqueous phase is a key property, which is supposed to be determined by those tests. In this work, we investigated the API partitioning between LBDDS and water by in-silico predictions applying the Perturbed-Chain Statistical Associating Fluid Theory (PC-SAFT) and validated these predictions experimentally. The API partitioning was investigated for LBDDS comprising up to four components (cinnarizine or ibuprofen with tricaprylin, caprylic acid, and ethanol). The influence of LBDDS/water mixing ratios from 1/1 up to 1/200 (w/w) as well as the influence of excipients on the API partitioning was studied. Moreover, possible API crystallization upon mixing the LBDDS with water was predicted. This work showed that PC-SAFT is a strong tool for predicting the API partitioning behavior during in-vitro tests. Thus, it allows rapidly assessing whether or not a specific LBDDS might be a promising candidate for further in-vitro tests and identifying the API load up to which API crystallization can be avoided.
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Affiliation(s)
- Joscha Brinkmann
- TU Dortmund University, Laboratory of Thermodynamics, Emil-Figge-Str. 70, D-44227 Dortmund, Germany
| | - Isabel Becker
- TU Dortmund University, Laboratory of Thermodynamics, Emil-Figge-Str. 70, D-44227 Dortmund, Germany
| | - Peter Kroll
- TU Dortmund University, Laboratory of Thermodynamics, Emil-Figge-Str. 70, D-44227 Dortmund, Germany
| | - Christian Luebbert
- TU Dortmund University, Laboratory of Thermodynamics, Emil-Figge-Str. 70, D-44227 Dortmund, Germany
| | - Gabriele Sadowski
- TU Dortmund University, Laboratory of Thermodynamics, Emil-Figge-Str. 70, D-44227 Dortmund, Germany.
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Fizer O, Fizer M, Sidey V, Studenyak Y. Predicting the end point potential break values: A case of potentiometric titration of lipophilic anions with cetylpyridinium chloride. Microchem J 2021; 160:105758. [DOI: 10.1016/j.microc.2020.105758] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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Bunker A, Róg T. Mechanistic Understanding From Molecular Dynamics Simulation in Pharmaceutical Research 1: Drug Delivery. Front Mol Biosci 2020; 7:604770. [PMID: 33330633 PMCID: PMC7732618 DOI: 10.3389/fmolb.2020.604770] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Accepted: 11/02/2020] [Indexed: 12/12/2022] Open
Abstract
In this review, we outline the growing role that molecular dynamics simulation is able to play as a design tool in drug delivery. We cover both the pharmaceutical and computational backgrounds, in a pedagogical fashion, as this review is designed to be equally accessible to pharmaceutical researchers interested in what this new computational tool is capable of and experts in molecular modeling who wish to pursue pharmaceutical applications as a context for their research. The field has become too broad for us to concisely describe all work that has been carried out; many comprehensive reviews on subtopics of this area are cited. We discuss the insight molecular dynamics modeling has provided in dissolution and solubility, however, the majority of the discussion is focused on nanomedicine: the development of nanoscale drug delivery vehicles. Here we focus on three areas where molecular dynamics modeling has had a particularly strong impact: (1) behavior in the bloodstream and protective polymer corona, (2) Drug loading and controlled release, and (3) Nanoparticle interaction with both model and biological membranes. We conclude with some thoughts on the role that molecular dynamics simulation can grow to play in the development of new drug delivery systems.
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Affiliation(s)
- Alex Bunker
- Division of Pharmaceutical Biosciences, Drug Research Program, Faculty of Pharmacy, University of Helsinki, Helsinki, Finland
| | - Tomasz Róg
- Department of Physics, University of Helsinki, Helsinki, Finland
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Abstract
PURPOSE This work proposes an in-silico screening method for identifying promising formulation candidates in complex lipid-based drug delivery systems (LBDDS). METHOD The approach is based on a minimum amount of experimental data for API solubilites in single excipients. Intermolecular interactions between APIs and excipients as well as between different excipients were accounted for by the Perturbed-Chain Statistical Associating Fluid Theory. The approach was applied to the in-silico screening of lipid-based formulations for ten model APIs (fenofibrate, ibuprofen, praziquantel, carbamazepine, cinnarizine, felodipine, naproxen, indomethacin, griseofulvin and glibenclamide) in mixtures of up to three out of nine excipients (tricaprylin, Capmul MCM, caprylic acid, Capryol™ 90, Lauroglycol™ FCC, Kolliphor TPGS, polyethylene glycol, carbitol and ethanol). RESULTS For eight out of the ten investigated model APIs, the solubilities in the final formulations could be enhanced by up to 100 times compared to the solubility in pure tricaprylin. Fenofibrate, ibuprofen, praziquantel, carbamazepine are recommended as type I formulations, whereas cinnarizine and felodipine showed a distinctive solubility gain in type II formulations. Increased solubility was found for naproxen and indomethacin in type IIIb and type IV formulations. The solubility of griseofulvin and glibenclamide could be slightly enhanced in type IIIb formulations. The experimental validation agreed very well with the screening results. CONCLUSION The API solubility individually depends on the choice of excipients. The proposed in-silico-screening approach allows formulators to quickly determine most-appropriate types of lipid-based formulations for a given API with low experimental effort. Graphical abstract.
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Affiliation(s)
- Joscha Brinkmann
- TU Dortmund University, Laboratory of Thermodynamics, Emil-Figge-Str. 70, D-44227, Dortmund, Germany
| | - Lara Exner
- TU Dortmund University, Laboratory of Thermodynamics, Emil-Figge-Str. 70, D-44227, Dortmund, Germany
| | - Christian Luebbert
- TU Dortmund University, Laboratory of Thermodynamics, Emil-Figge-Str. 70, D-44227, Dortmund, Germany
| | - Gabriele Sadowski
- TU Dortmund University, Laboratory of Thermodynamics, Emil-Figge-Str. 70, D-44227, Dortmund, Germany.
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Kuentz M, Bergström CAS. Synergistic Computational Modeling Approaches as Team Players in the Game of Solubility Predictions. J Pharm Sci 2021; 110:22-34. [PMID: 33217423 DOI: 10.1016/j.xphs.2020.10.068] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 10/23/2020] [Accepted: 10/28/2020] [Indexed: 11/23/2022]
Abstract
Several approaches to predict and model drug solubility have been used in the drug discovery and development processes during the last decades. Each of these approaches have their own benefits and place, and are typically used as standalone approaches rather than in concert. The synergistic effects of these are often overlooked, partly due to the need of computational experts to perform the modeling and simulations as well as analyzing the data obtained. Here we provide our views on how these different approaches can be used to retrieve more information on drug solubility, ranging from multivariate data analysis over thermodynamic cycle modeling to molecular dynamics simulations. We are discussing aqueous solubility as well as solubility in more complex mixed solvents and media with colloidal structures present. We conclude that the field of computational pharmaceutics is in its early days but with a bright future ahead. However, education of computational formulators with broad knowledge of modeling and simulation approaches is imperative if computational pharmaceutics is to reach its full potential.
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Abou Assi R, M. Abdulbaqi I, Seok Ming T, Siok Yee C, A. Wahab H, Asif SM, Darwis Y. Liquid and Solid Self-Emulsifying Drug Delivery Systems (SEDDs) as Carriers for the Oral Delivery of Azithromycin: Optimization, In Vitro Characterization and Stability Assessment. Pharmaceutics 2020; 12:E1052. [PMID: 33158058 PMCID: PMC7693798 DOI: 10.3390/pharmaceutics12111052] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 10/26/2020] [Accepted: 10/29/2020] [Indexed: 02/06/2023] Open
Abstract
Azithromycin (AZM) is a macrolide antibiotic used for the treatment of various bacterial infections. The drug is known to have low oral bioavailability (37%) which may be attributed to its relatively high molecular weight, low solubility, dissolution rate, and incomplete intestinal absorption. To overcome these drawbacks, liquid (L) and solid (S) self-emulsifying drug delivery systems (SEDDs) of AZM were developed and optimized. Eight different pseudo-ternary diagrams were constructed based on the drug solubility and the emulsification studies in various SEDDs excipients at different surfactant to co-surfactant (Smix) ratios. Droplet size (DS) < 150 nm, dispersity (Đ) ≤ 0.7, and transmittance (T)% > 85 in three diluents of distilled water (DW), 0.1 mM HCl, and simulated intestinal fluids (SIF) were considered as the selection criteria. The final formulations of L-SEDDs (L-F1(H)), and S-SEDDs (S-F1(H)) were able to meet the selection requirements. Both formulations were proven to be cytocompatible and able to open up the cellular epithelial tight junctions (TJ). The drug dissolution studies showed that after 5 min > 90% and 52.22% of the AZM was released from liquid and solid SEDDs formulations in DW, respectively, compared to 11.27% of the pure AZM, suggesting the developed SEDDs may enhance the oral delivery of the drug. The formulations were stable at refrigerator storage conditions.
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Affiliation(s)
- Reem Abou Assi
- The Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (R.A.A.); (I.M.A.); (T.S.M.); (S.M.A.)
- The Discipline of Pharmaceutical Technology, College of Pharmacy, Al-Kitab University, Altun kupri, Kirkuk 36001, Iraq
| | - Ibrahim M. Abdulbaqi
- The Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (R.A.A.); (I.M.A.); (T.S.M.); (S.M.A.)
- The Discipline of Pharmaceutical Technology, College of Pharmacy, Al-Kitab University, Altun kupri, Kirkuk 36001, Iraq
| | - Toh Seok Ming
- The Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (R.A.A.); (I.M.A.); (T.S.M.); (S.M.A.)
| | - Chan Siok Yee
- The Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (R.A.A.); (I.M.A.); (T.S.M.); (S.M.A.)
| | - Habibah A. Wahab
- The Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (R.A.A.); (I.M.A.); (T.S.M.); (S.M.A.)
| | - Shaik Mohammed Asif
- The Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (R.A.A.); (I.M.A.); (T.S.M.); (S.M.A.)
- Pharma Research, Wockhardt Research Center, Aurangabad 431002, India
| | - Yusrida Darwis
- The Discipline of Pharmaceutical Technology, School of Pharmaceutical Sciences, Universiti Sains Malaysia, Penang 11800, Malaysia; (R.A.A.); (I.M.A.); (T.S.M.); (S.M.A.)
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Kabedev A, Hossain S, Hubert M, Larsson P, Bergström CAS. Molecular Dynamics Simulations Reveal Membrane Interactions for Poorly Water-Soluble Drugs: Impact of Bile Solubilization and Drug Aggregation. J Pharm Sci 2020; 110:176-185. [PMID: 33152373 DOI: 10.1016/j.xphs.2020.10.061] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Revised: 10/14/2020] [Accepted: 10/28/2020] [Indexed: 01/19/2023]
Abstract
Molecular transport mechanisms of poorly soluble hydrophobic drug compounds to lipid membranes were investigated using molecular dynamics (MD) simulations. The model compound danazol was used to investigate the mechanism(s) by which bile micelles delivered it to the membrane. The interactions between lipid membrane and pure drug aggregates-in the form of amorphous aggregates and nanocrystals-were also studied. Our simulations indicate that bile micelles formed in the intestinal fluid may facilitate danazol incorporation into cellular membranes through two different mechanisms. The micelle may be acting as: i) a shuttle that presents the danazol directly to the membrane or ii) an elevator that moves the solubilized danazol with it as the colloidal structure itself becomes incorporated and solubilized within the membrane. The elevator hypothesis was supported by complementary lipid monolayer adsorption experiments. In these experiments, colloidal structures formed with simulated intestinal fluid were observed to rapidly incorporate into the monolayer. Simulations of membrane interaction with drug aggregates showed that both the amorphous aggregates and crystalline nanostructures incorporated into the membrane. However, the amorphous aggregates solubilized more quickly than the nanocrystals into the membrane, thereby improving the danazol absorption.
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Affiliation(s)
- Aleksei Kabedev
- Department of Pharmacy, Uppsala University, Husargatan 3, 751 23 Uppsala, Sweden
| | - Shakhawath Hossain
- Department of Pharmacy, Uppsala University, Husargatan 3, 751 23 Uppsala, Sweden
| | - Madlen Hubert
- Department of Pharmacy, Uppsala University, Husargatan 3, 751 23 Uppsala, Sweden
| | - Per Larsson
- Department of Pharmacy, Uppsala University, Husargatan 3, 751 23 Uppsala, Sweden; The Swedish Drug Delivery Center (SweDeliver), Uppsala University, Husargatan 3, 751 23 Uppsala, Sweden
| | - Christel A S Bergström
- Department of Pharmacy, Uppsala University, Husargatan 3, 751 23 Uppsala, Sweden; The Swedish Drug Delivery Center (SweDeliver), Uppsala University, Husargatan 3, 751 23 Uppsala, Sweden.
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Bennett-Lenane H, Koehl NJ, O'Dwyer PJ, Box KJ, O'Shea JP, Griffin BT. Applying Computational Predictions of Biorelevant Solubility Ratio Upon Self-Emulsifying Lipid-Based Formulations Dispersion to Predict Dose Number. J Pharm Sci 2020; 110:164-175. [PMID: 33144233 DOI: 10.1016/j.xphs.2020.10.055] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 10/19/2020] [Accepted: 10/28/2020] [Indexed: 11/26/2022]
Abstract
Computational approaches are increasingly utilised in development of bio-enabling formulations, including self-emulsifying drug delivery systems (SEDDS), facilitating early indicators of success. This study investigated if in silico predictions of drug solubility gain i.e. solubility ratios (SR), after dispersion of a SEDDS in biorelevant media could be predicted from drug properties. Apparent solubility upon dispersion of two SEDDS in FaSSIF was measured for 30 structurally diverse poorly water soluble drugs. Increased drug solubility upon SEDDS dispersion was observed in all cases, with higher SRs observed for cationic and neutral versus anionic drugs at pH 6.5. Molecular descriptors and solid-state properties were used as inputs during partial least squares (PLS) modelling resulting in predictive models for SRMC (r2 = 0.81) and SRLC (r2 = 0.77). Multiple linear regression (MLR) facilitated generation of simplified SR equations with high predictivity (SRMC r2 = 0.74; SRLC r2 = 0.69), requiring only three drug properties; partition coefficient at pH 6.5 (logD6.5), melting point (Tm) and aromatic bonds as fraction of total bonds (F-AromB). Through using the equations to inform developability classification system (DCS) classes for drugs that have already been licensed as lipid-based formulations, merits for development with SEDDS was predicted for 2/3 drugs.
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Affiliation(s)
| | - Niklas J Koehl
- School of Pharmacy, University College Cork, Cork, Ireland
| | - Patrick J O'Dwyer
- School of Pharmacy, University College Cork, Cork, Ireland; Pion Inc. (UK) Ltd, Forest Row, East Sussex, UK
| | - Karl J Box
- Pion Inc. (UK) Ltd, Forest Row, East Sussex, UK
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Bennett-Lenane H, O'Shea JP, O'Driscoll CM, Griffin BT. A Retrospective Biopharmaceutical Analysis of >800 Approved Oral Drug Products: Are Drug Properties of Solid Dispersions and Lipid-Based Formulations Distinctive? J Pharm Sci 2020; 109:3248-3261. [DOI: 10.1016/j.xphs.2020.08.008] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/13/2020] [Accepted: 08/17/2020] [Indexed: 10/23/2022]
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Ilie AR, Griffin BT, Vertzoni M, Kuentz M, Cuyckens F, Wuyts K, Kolakovic R, Holm R. Toward simplified oral lipid-based drug delivery using mono-/di-glycerides as single component excipients. Drug Dev Ind Pharm 2020; 46:2051-2060. [PMID: 33124918 DOI: 10.1080/03639045.2020.1843475] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE This study aimed to systematically explore compositional effects for a series of lipid systems, on the in vitro drug solubilization and in vivo bioavailability of three poorly water-soluble drugs with different physico-chemical properties. SIGNIFICANCE While many lipid-based drug products have successfully reached the market, there is still a level of uncertainty on the design guidelines for such drug products with limited understanding on the influence of composition on in vitro and in vivo performance. METHODS AND RESULTS Lipid-based drug delivery systems were prepared using either single excipient systems based on partially digested triglycerides (i.e. mono- and/or di-glycerides) or increasingly complex systems by incorporating surfactants and/or triglycerides. These lipid systems were evaluated for both in vitro and in vivo behavior. Results indicated that simple single component long chain lipid systems are more beneficial for the absorption of the weak acid celecoxib and the weak base cinnarizine compared to equivalent single component medium chain lipid systems. Similarly, a two-component system produced by incorporating small amount of hydrophilic surfactant yields similar overall pharmacokinetic effects. The lipid drug delivery systems based on medium chain lipid excipients improved the in vivo exposure of the neutral drug JNJ-2A. The higher in vivo bioavailability of long chain lipid systems compared to medium chain lipid systems was in agreement with in vitro dilution and dispersion studies for celecoxib and cinnarizine. CONCLUSIONS The present study demonstrated the benefits of using mono-/di-glycerides as single component excipients in LBDDS to streamline formulation screening and improve oral bioavailability for the three tested poorly water-soluble drugs.
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Affiliation(s)
- Alexandra-Roxana Ilie
- Drug Product Development, Janssen Research and Development, Beerse, Belgium.,School of Pharmacy, University College Cork, Cork, Ireland
| | | | - Maria Vertzoni
- Department of Pharmacy, National and Kapodistrian University of Athens, Zografou, Greece
| | - Martin Kuentz
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
| | - Filip Cuyckens
- Drug Metabolism & Pharmacokinetics, Janssen Research and Development, Beerse, Belgium
| | - Koen Wuyts
- Drug Metabolism & Pharmacokinetics, Janssen Research and Development, Beerse, Belgium
| | - Ruzica Kolakovic
- Drug Product Development, Janssen Research and Development, Beerse, Belgium
| | - René Holm
- Drug Product Development, Janssen Research and Development, Beerse, Belgium.,Department of Science and Environment, Roskilde University, Roskilde, Denmark
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Pattarachotanant N, Tencomnao T. Citrus hystrix Extracts Protect Human Neuronal Cells against High Glucose-Induced Senescence. Pharmaceuticals (Basel) 2020; 13:ph13100283. [PMID: 33007805 PMCID: PMC7600454 DOI: 10.3390/ph13100283] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2020] [Revised: 09/23/2020] [Accepted: 09/23/2020] [Indexed: 12/17/2022] Open
Abstract
Citrus hystrix (CH) is a beneficial plant utilized in traditional folk medicine to relieve various health ailments. The antisenescent mechanisms of CH extracts were investigated using human neuroblastoma cells (SH-SY5Y). Phytochemical contents and antioxidant activities of CH extracts were analyzed using a gas chromatograph–mass spectrometer (GC-MS), 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) assay and 2,2′-azino-bis (3-ethylbenzthiazoline-6-sulphonic acid) (ABTS) assay. Effects of CH extracts on high glucose-induced cytotoxicity, reactive oxygen species (ROS) generation, cell cycle arrest and cell cycle-associated proteins were assessed using a 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide tetrazolium (MTT) assay, non-fluorescent 2′, 7′-dichloro-dihydrofluorescein diacetate (H2DCFDA) assay, flow cytometer and Western blot. The extracts protected neuronal senescence by inhibiting ROS generation. CH extracts induced cell cycle progression by releasing senescent cells from the G1 phase arrest. As the Western blot confirmed, the mechanism involved in cell cycle progression was associated with the downregulation of cyclin D1, phospho-cell division cycle 2 (pcdc2) and phospho-Retinoblastoma (pRb) proteins. Furthermore, the Western blot showed that extracts increased Surtuin 1 (SIRT1) expression by increasing the phosphorylation of Glyceraldehyde 3-phosphate dehydrogenase (GAPDH). Collectively, CH extracts could protect high glucose-induced human neuronal senescence by inducing cell cycle progression and up-regulation of SIRT1, thus leading to the improvement of the neuronal cell functions.
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Affiliation(s)
- Nattaporn Pattarachotanant
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand;
- Age-Related Inflammation and Degeneration Research Unit, Chulalongkorn University, Bangkok 10330, Thailand
| | - Tewin Tencomnao
- Department of Clinical Chemistry, Faculty of Allied Health Sciences, Chulalongkorn University, Bangkok 10330, Thailand;
- Age-Related Inflammation and Degeneration Research Unit, Chulalongkorn University, Bangkok 10330, Thailand
- Correspondence: ; Tel.: +66-2-218-1533
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Mazonde P, Khamanga SMM, Walker RB. Design, Optimization, Manufacture and Characterization of Efavirenz-Loaded Flaxseed Oil Nanoemulsions. Pharmaceutics 2020; 12:E797. [PMID: 32842501 PMCID: PMC7559825 DOI: 10.3390/pharmaceutics12090797] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Revised: 08/10/2020] [Accepted: 08/13/2020] [Indexed: 02/06/2023] Open
Abstract
The formation, manufacture and characterization of low energy water-in-oil (w/o) nanoemulsions prepared using cold pressed flaxseed oil containing efavirenz was investigated. Pseudo-ternary phase diagrams were constructed to identify the nanoemulsion region(s). Other potential lipid-based drug delivery phases containing flaxseed oil with 1:1 m/m surfactant mixture of Tween® 80, Span® 20 and different amounts of ethanol were tested to characterize the impact of surfactant mixture on emulsion formation. Flaxseed oil was used as the oil phase as efavirenz exhibited high solubility in the vehicle when compared to other vegetable oils tested. Optimization of surfactant mixtures was undertaken using design of experiments, specifically a D-optimal design with the flaxseed oil content set at 10% m/m. Two solutions from the desired optimization function were produced based on desirability and five nanoemulsion formulations were produced and characterized in terms of in vitro release of efavirenz, physical and chemical stability. Metastable nanoemulsions containing 10% m/m flaxseed oil were successfully manufactured and significant isotropic gel (semisolid) and o/w emulsions were observed during phase behavior studies. Droplet sizes ranged between 156 and 225 nm, zeta potential between -24 and -41 mV and all formulations were found to be monodisperse with polydispersity indices ≤ 0.487.
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Affiliation(s)
| | | | - Roderick B. Walker
- Department of Pharmaceutics, Faculty of Pharmacy, Rhodes University, Makhanda 6140, South Africa; (P.M.); (S.M.M.K.)
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Karavasili C, Andreadis II, Tsantarliotou MP, Taitzoglou IA, Chatzopoulou P, Katsantonis D, Zacharis CK, Markopoulou C, Fatouros DG. Self-Nanoemulsifying Drug Delivery Systems (SNEDDS) Containing Rice Bran Oil for Enhanced Fenofibrate Oral Delivery: In Vitro Digestion, Ex Vivo Permeability, and In Vivo Bioavailability Studies. AAPS PharmSciTech 2020; 21:208. [PMID: 32725343 DOI: 10.1208/s12249-020-01765-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2020] [Accepted: 07/14/2020] [Indexed: 12/20/2022] Open
Abstract
Lipid-based drug delivery systems (LbDDS), such as self-nanoemulsifying drug delivery systems (SNEDDS), constitute a prominent formulation approach for enhancing the aqueous solubility and oral bioavailability of poorly water-soluble compounds. Utilization of biorefinery wastes, such as oil from rice bran, may prove advantageous to both improving drug solubilization and absorption and to achieving sustainable agri-food waste valorization. Here, we assessed the effect of four SNEDDS compositions differing in the oil (rice bran oil and corn oil) and surfactant type (Kolliphor RH40 and EL) on the oral bioavailability of fenofibrate, a BCS class II compound. Prior to the in vivo oral administration of the SNEDDS in rats, drug solubilization was tested in vitro using the static digestion model, followed by the ex vivo permeability study of the predigested SNEDDS using the non-everted gut sac model. No significant variation was observed in the solubilization capacity within the different SNEDDS formulations. On the other hand, the ex vivo permeability data of the predigested SNEDDS correlated well with the in vivo bioavailability data designating the superiority of rice bran oil with Kolliphor EL as the surfactant, to enhance the oral absorption of fenofibrate. Results indicated that valorization of agro-industrial waste such as rice bran oil may prove useful in enhancing the oral performance of LbDDS in the case of fenofibrate, while at the same time maximizing the use of agricultural by-products via the creation of new sustainable value chains in the pharmaceutical field.
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Grüne L, Bunjes H. Self-dispersing formulations for the delivery of poorly soluble drugs – Miscibility of phosphatidylcholines with oils and fats. Eur J Pharm Biopharm 2020; 151:209-19. [DOI: 10.1016/j.ejpb.2020.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2019] [Revised: 03/24/2020] [Accepted: 04/19/2020] [Indexed: 11/22/2022]
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Teleki A, Nylander O, Bergström CAS. Intrinsic Dissolution Rate Profiling of Poorly Water-Soluble Compounds in Biorelevant Dissolution Media. Pharmaceutics 2020; 12:E493. [PMID: 32481718 DOI: 10.3390/pharmaceutics12060493] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 12/31/2022] Open
Abstract
The intrinsic dissolution rate (IDR) of active pharmaceutical ingredients (API) is a key property that aids in early drug development, especially selecting formulation strategies to improve dissolution and thereby drug absorption in the intestine. Here, we developed a robust method for rapid, medium throughput screening of IDR and established the largest IDR dataset in open literature to date that can be used for pharmaceutical computational modeling. Eighteen compounds with diverse physicochemical properties were studied in both fasted and fed state simulated intestinal fluids. Dissolution profiles were measured in small-scale experimental assays using compound suspensions or discs. IDR measurements were not solely linked to API solubility in either dissolution media. Multivariate data analysis revealed that IDR strongly depends on compound partitioning into bile salt and phospholipid micelles in the simulated intestinal fluids, a process that in turn is governed by API lipophilicity, hydrophobicity, and ionization.
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30
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Makoni PA, Ranchhod J, WaKasongo K, Khamanga SM, Walker RB. The use of quantitative analysis and Hansen solubility parameter predictions for the selection of excipients for lipid nanocarriers to be loaded with water soluble and insoluble compounds. Saudi Pharm J 2020; 28:308-15. [PMID: 32194332 DOI: 10.1016/j.jsps.2020.01.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2019] [Accepted: 01/26/2020] [Indexed: 01/01/2023] Open
Abstract
The aim of these studies was to determine the miscibility of different API with lipid excipients to predict drug loading and encapsulation properties for the production of solid lipid nanoparticles and nanostructured lipid carriers. Five API exhibiting different physicochemical characteristics, viz., clarithromycin, efavirenz, minocycline hydrochloride, mometasone furoate, and didanosine were used and six solid lipids in addition to four liquid lipids were investigated. Determination of solid and liquid lipids with the best solubilization potential for each API were performed using a traditional shake-flask method and/or a modification thereof. Hansen solubility parameters of the API and different solid and liquid lipids were estimated from their chemical structure using Hiroshi Yamamoto’s molecular breaking method of Hansen Solubility Parameters in Practice software. Experimental results were in close agreement with solubility parameter predictions for systems with ΔδT < 4.0 MPa1/2. A combination of Hansen solubility parameters with experimental drug-lipid miscibility tests can be successfully applied to predict lipids with the best solubilizing potential for different API prior to manufacture of solid lipid nanoparticles and nanostructured lipid carriers.
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Tay E, Nguyen TH, Ford L, Williams HD, Benameur H, Scammells PJ, Porter CJH. Ionic Liquid Forms of the Antimalarial Lumefantrine in Combination with LFCS Type IIIB Lipid-Based Formulations Preferentially Increase Lipid Solubility, In Vitro Solubilization Behavior and In Vivo Exposure. Pharmaceutics 2019; 12:pharmaceutics12010017. [PMID: 31877828 PMCID: PMC7023222 DOI: 10.3390/pharmaceutics12010017] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Revised: 12/15/2019] [Accepted: 12/18/2019] [Indexed: 12/30/2022] Open
Abstract
Lipid based formulations (LBFs) are commonly employed to enhance the absorption of highly lipophilic, poorly water-soluble drugs. However, the utility of LBFs can be limited by low drug solubility in the formulation. Isolation of ionizable drugs as low melting, lipophilic salts or ionic liquids (ILs) provides one means to enhance drug solubility in LBFs. However, whether different ILs benefit from formulation in different LBFs is largely unknown. In the current studies, lumefantrine was isolated as a number of different lipophilic salt/ionic liquid forms and performance was assessed after formulation in a range of LBFs. The solubility of lumefantrine in LBF was enhanced 2- to 80-fold by isolation as the lumefantrine docusate IL when compared to lumefantrine free base. The increase in drug loading subsequently enhanced concentrations in the aqueous phase of model intestinal fluids during in vitro dispersion and digestion testing of the LBF. To assess in vivo performance, the systemic exposure of lumefantrine docusate after administration in Type II-MCF, IIIB-MCF, IIIB-LCF, and IV formulations was evaluated after oral administration to rats. In vivo exposure was compared to control lipid and aqueous suspension formulations of lumefantrine free base. Lumefantrine docusate in the Type IIIB-LCF showed significantly higher plasma exposure compared to all other formulations (up to 35-fold higher). The data suggest that isolation of a lipid-soluble IL, coupled with an appropriate formulation, is a viable means to increase drug dose in an oral formulation and to enhance exposure of lumefantrine in vivo.
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Affiliation(s)
- Erin Tay
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia; (E.T.); (L.F.)
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia;
| | - Tri-Hung Nguyen
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia;
| | - Leigh Ford
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia; (E.T.); (L.F.)
- Oral Drug Delivery Innovation, Lonza Pharma Biotech & Nutrition, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia;
| | - Hywel D. Williams
- Oral Drug Delivery Innovation, Lonza Pharma Biotech & Nutrition, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia;
| | - Hassan Benameur
- Oral Drug Delivery Innovation, Lonza Pharma Biotech & Nutrition, 67412 Strasbourg, France;
| | - Peter J. Scammells
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia; (E.T.); (L.F.)
- Correspondence: (P.J.S.); (C.J.H.P.); Tel.: +61-(0)-3-9903-9542 (P.J.S.); +61-(0)-3-9903-9549 (C.J.H.P.)
| | - Christopher J. H. Porter
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia;
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
- Correspondence: (P.J.S.); (C.J.H.P.); Tel.: +61-(0)-3-9903-9542 (P.J.S.); +61-(0)-3-9903-9549 (C.J.H.P.)
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Mendonsa N, Almutairy B, Kallakunta VR, Sarabu S, Thipsay P, Bandari S, Repka MA. Manufacturing strategies to develop amorphous solid dispersions: An overview. J Drug Deliv Sci Technol 2019; 55. [PMID: 32863891 DOI: 10.1016/j.jddst.2019.101459] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Since the past several decades, poor water solubility of existing and new drugs in the pipeline have remained a challenging issue for the pharmaceutical industry. Literature describes several approaches to improve the overall solubility, dissolution rate, and bioavailability of drugs with poor water solubility. Moreover, the development of amorphous solid dispersion (SD) using suitable polymers and methods have gained considerable importance in the recent past. In the present review, we attempt to discuss the important and industrially scalable thermal strategies for the development of amorphous SD. These include both solvent (spray drying and fluid bed processing) and fusion (hot melt extrusion and KinetiSol®) based techniques. The current review also provides insights into the thermodynamic properties of drugs, their polymer miscibility and solubility, and their molecular dynamics to develop stable and more efficient amorphous SD.
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Affiliation(s)
- Nicole Mendonsa
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Bjad Almutairy
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Venkata Raman Kallakunta
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Sandeep Sarabu
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Priyanka Thipsay
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Suresh Bandari
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States
| | - Michael A Repka
- Department of Pharmaceutics and Drug Delivery, The University of Mississippi, Oxford, MS, 38677, United States.,Pii Center for Pharmaceutical Innovation & Instruction, The University of Mississippi, Oxford, MS, 38677, United States
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Brinkmann J, Huxoll F, Luebbert C, Sadowski G. Solubility of pharmaceutical ingredients in triglycerides. Eur J Pharm Biopharm 2019; 145:113-120. [DOI: 10.1016/j.ejpb.2019.10.012] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 08/26/2019] [Accepted: 10/22/2019] [Indexed: 10/25/2022]
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Affiliation(s)
- Jochem Alsenz
- Roche Pharmaceutical Research & Early Development, Pre-Clinical CMC, Roche Innovation Center Basel, F. Hoffmann-La Roche Ltd, Grenzacherstr. 124, 4070 Basel, Switzerland
| | - Martin Kuentz
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Hofackerstr. 30, 4132 Muttenz, Switzerland
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Helal NA, Elnoweam O, Eassa HA, Amer AM, Eltokhy MA, Helal MA, Fayyaz HA, Nounou MI. Integrated continuous manufacturing in pharmaceutical industry: current evolutionary steps toward revolutionary future. Pharm Pat Anal 2019; 8:139-61. [DOI: 10.4155/ppa-2019-0011] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Continuous manufacturing (CM) has the potential to provide pharmaceutical products with better quality, improved yield and with reduced cost and time. Moreover, ease of scale-up, small manufacturing footprint and on-line/in-line monitoring and control of the process are other merits for CM. Regulating authorities are supporting the adoption of CM by pharmaceutical manufacturers through issuing proper guidelines. However, implementation of this technology in pharmaceutical industry is encountered by a number of challenges regarding the process development and quality assurance. This article provides a background on the implementation of CM in pharmaceutical industry, literature survey of the most recent state-of-the-art technologies and critically discussing the encountered challenges and its future prospective in pharmaceutical industry.
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Charalabidis A, Sfouni M, Bergström C, Macheras P. The Biopharmaceutics Classification System (BCS) and the Biopharmaceutics Drug Disposition Classification System (BDDCS): Beyond guidelines. Int J Pharm 2019; 566:264-281. [PMID: 31108154 DOI: 10.1016/j.ijpharm.2019.05.041] [Citation(s) in RCA: 61] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2019] [Revised: 05/13/2019] [Accepted: 05/14/2019] [Indexed: 01/10/2023]
Abstract
The recent impact of the Biopharmaceutics Classification System (BCS) and the Biopharmaceutics Drug Disposition Classification System (BDDCS) on relevant scientific advancements is discussed. The major advances associated with the BCS concern the extensive work on dissolution of poorly absorbed BCS class II drugs in nutritional liquids (e.g. milk, peanut oil) and biorelevant media for the accurate prediction of the rate and the extent of oral absorption. The use of physiologically based pharmacokinetic (PBPK) modeling as predictive tool for bioavailability is also presented. Since recent dissolution studies demonstrate that the two mechanisms (diffusion- and reaction-limited dissolution) take place simultaneously, the neglected reaction-limited dissolution models are discussed, regarding the biopharmaceutical classification of drugs. Solubility- and dissolution-enhancing formulation strategies based on the supersaturation principle to enhance the extent of drug absorption, along with the applications of the BDDCS to the understanding of disposition phenomena are reviewed. Finally, recent classification systems relevant either to the BCS or the BDDCS are presented. These include: i) a model independent approach based on %metabolism and the fulfilment (or not) of the current regulatory dissolution criteria, ii) the so called ΑΒΓ system, a continuous version of the BCS, and iii) the so-called Extended Clearance Classification System (ECCS). ECCS uses clearance concepts (physicochemical properties and membrane permeability) to classify compounds and differentiates from BDDCS by bypassing the measure of solubility (based on the assumption that since it inter-correlates with lipophilicity, it is not directly relevant to clearance mechanisms or elimination).
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Affiliation(s)
- Aggelos Charalabidis
- Laboratory of Pharmacognosy, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Greece
| | - Maria Sfouni
- Laboratory of Biopharmaceutics and Pharmacokinetics, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Greece
| | - Christel Bergström
- Department of Pharmacy, Uppsala University, BMC P.O. Box 580, SE-751 23 Uppsala, Sweden
| | - Panos Macheras
- Laboratory of Biopharmaceutics and Pharmacokinetics, Department of Pharmacy, School of Health Sciences, National and Kapodistrian University of Athens, Greece; PharmaInformatics Unit, Research Center ATHENA, Athens, Greece; Department of Pharmaceutical Sciences, State University of New York (SUNY), Buffalo, USA.
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Alskär LC, Parrow A, Keemink J, Johansson P, Abrahamsson B, Bergström CAS. Effect of lipids on absorption of carvedilol in dogs: Is coadministration of lipids as efficient as a lipid-based formulation? J Control Release 2019; 304:90-100. [PMID: 31047962 DOI: 10.1016/j.jconrel.2019.04.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2018] [Revised: 04/05/2019] [Accepted: 04/26/2019] [Indexed: 11/16/2022]
Abstract
Lipid-based formulations (LBFs) is a formulation strategy for enabling oral delivery of poorly water-soluble drugs. However, current use of this strategy is limited to a few percent of the marketed products. Reasons for that are linked to the complexity of LBFs, chemical instability of pre-dissolved drug and a limited understanding of the influence of LBF intestinal digestion on drug absorption. The aim of this study was to explore intestinal drug solubilization from a long-chain LBF, and evaluate whether coadministration of LBF is as efficient as a lipid-based drug formulation containing the pre-dissolved model drug carvedilol. Thus, solubility studies of this weak base were performed in simulated intestinal fluid (SIF) and aspirated dog intestinal fluid (DIF). DIF was collected from duodenal stomas after dosing of water and two levels (1 g and 2 g) of LBF. Similarly, the in vitro SIF solubility studies were conducted prior to, and after addition of, undigested or digested LBF. The DIF fluid was further characterized for lipid digestion products (free fatty acids) and bile salts. Subsequently, carvedilol was orally administered to dogs in a lipid-based drug formulation and coadministered with LBF, and drug plasma exposure was assessed. In addition to these studies, in vitro drug absorption from the different formulation approaches were evaluated in a lipolysis-permeation device, and the obtained data was used to evaluate the in vitro in vivo correlation. The results showed elevated concentrations of free fatty acids and bile salts in the DIF when 2 g of LBF was administered, compared to only water. As expected, the SIF and DIF solubility data revealed that carvedilol solubilization increased by the presence of lipids and lipid digestion products. Moreover, coadministration of LBF and drug demonstrated equal plasma exposure to the lipid-based drug formulation. Furthermore, evaluation of in vitro absorption resulted in the same rank order for the LBFs as in the in vivo dog study. In conclusion, this study demonstrated increased intestinal solubilization from a small amount of LBF, caused by lipid digestion products and bile secretion. The outcomes also support the use of coadministration of LBF as a potential dosing regimen in cases where it is beneficial to have the drug in the solid form, e.g. due to chemical instability in the lipid vehicle. Finally, the in vitro lipolysis-permeation used herein established IVIVC for carvedilol in the presence of LBFs.
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Affiliation(s)
- Linda C Alskär
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Center, P.O Box 580, SE-751 23 Uppsala, Sweden
| | - Albin Parrow
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Center, P.O Box 580, SE-751 23 Uppsala, Sweden
| | - Janneke Keemink
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Center, P.O Box 580, SE-751 23 Uppsala, Sweden
| | | | | | - Christel A S Bergström
- Department of Pharmacy, Uppsala University, Uppsala Biomedical Center, P.O Box 580, SE-751 23 Uppsala, Sweden.
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Williams HD, Ford L, Igonin A, Shan Z, Botti P, Morgen MM, Hu G, Pouton CW, Scammells PJ, Porter CJH, Benameur H. Unlocking the full potential of lipid-based formulations using lipophilic salt/ionic liquid forms. Adv Drug Deliv Rev 2019; 142:75-90. [PMID: 31150666 DOI: 10.1016/j.addr.2019.05.008] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2019] [Revised: 04/05/2019] [Accepted: 05/27/2019] [Indexed: 12/24/2022]
Abstract
Lipid-based formulations (LBF) are widely used by industry and accepted by the regulatory authorities for oral drug delivery in the pharmaceutical and consumer healthcare market. Innovation in the LBF field is however needed in order to meet the demands of modern drugs, their more challenging problem statements and growing needs for achieving optimal pharmacokinetics (i.e., no food-effects, low variability) on approval. This review describes a new lipophilic salt / ionic liquid approach in combination with LBF, and how this salt strategy can be used to better tailor the properties of a drug to LBFs. The potential advantages of lipophilic salts are discussed in the context of dose escalation studies during toxicological evaluation, reducing the pill burden, increasing drug absorption of new drugs and in life-cycle management. Commentary on lipophilic salt synthesis, scale-up, LBF design and the regulatory aspects are also provided. These topics are discussed in the broad context of bringing the widely recognized advantages of LBFs to a broader spectrum of drugs.
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Affiliation(s)
- Hywel D Williams
- Oral Drug Delivery Innovation, Global Research & Development, Lonza, Monash University, 381 Royal Parade, Parkville, Victoria, Australia
| | - Leigh Ford
- Oral Drug Delivery Innovation, Global Research & Development, Lonza, Monash University, 381 Royal Parade, Parkville, Victoria, Australia
| | - Annabel Igonin
- Pharmaceutical Product Development, Lonza, Ploërmel, France
| | - Zhenhua Shan
- Chemistry, Research & Development, Lonza, Nansha, China
| | - Paolo Botti
- Oral Drug Delivery Innovation, Global Research & Development, Lonza, Strasbourg, France
| | | | - Guixian Hu
- Research & Technology, Lonza, Visp, Switzerland
| | - Colin W Pouton
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Peter J Scammells
- Medicinal Chemistry, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia
| | - Christopher J H Porter
- Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia; ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, Monash University, 381 Royal Parade, Parkville, Victoria 3052, Australia.
| | - Hassan Benameur
- Oral Drug Delivery Innovation, Global Research & Development, Lonza, Strasbourg, France.
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Siram K, Divakar S, Raghavan CV, Marslin G, Rahman H, Franklin G. Prediction and elucidation of factors affecting solubilisation of imatinib mesylate in lipids. Colloids Surf B Biointerfaces 2019; 174:443-450. [PMID: 30497005 DOI: 10.1016/j.colsurfb.2018.11.033] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2018] [Revised: 10/17/2018] [Accepted: 11/16/2018] [Indexed: 10/27/2022]
Abstract
The physico-chemical properties of lipids influencing the solubilisation of imatinib mesylate (IM) in lipid matrix were evaluated and a statistical model to predict the same has been derived in the present study. After experimental quantification of IM solubility in various lipids, Hansen Hildebrand's total solubility parameters were calculated in order to study the role of various forces connected to lipid-drug interaction. To develop a relationship between the various descriptors of the lipids and experimental solubility of IM in lipids (% w/w), quantitative structure-solubility relationship (QSSR) was used. To generate equations that can predict the solubility of IM in lipids (%w/w), multiple linear regression was used. Amongst the various lipids tested, glyceryl monostearate and behenic acid solubilised the highest (6.19 ± 0.22%) and lowest (0.01 ± 0.01%) amounts of IM respectively. Our results suggested that alkyl chain length, polarity of the lipids, index of cohesive interaction in solids, estimated number of hydrogen bonds that would be accepted by the solute from water molecules in an aqueous solution, estimated number of hydrogen bonds that would be donated by the solute to water molecules in an aqueous solution and solvent accessible surface area collectively play a significant role in solubilising IM in the lipids. The equation developed could predict the solubility of IM in lipids with good accuracy (R2pred = 0.912).
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Affiliation(s)
- Karthik Siram
- Department of Pharmaceutics, PSG College of Pharmacy, Peelamedu, Coimbatore, India
| | - Selvaraj Divakar
- Department of Pharmacology, PSG College of Pharmacy, Peelamedu, Coimbatore, 641004, India
| | | | - Gregory Marslin
- Department of Integrative Plant Biology, Institute of Plant Genetics of the Polish Academy of Sciences, Strzeszyńska 34, 60-479, Poznań, Poland
| | - Habibur Rahman
- Department of Pharmaceutics, PSG College of Pharmacy, Peelamedu, Coimbatore, India; Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, UCSI University, Kuala Lumpur, 56000, Malaysia
| | - Gregory Franklin
- Department of Integrative Plant Biology, Institute of Plant Genetics of the Polish Academy of Sciences, Strzeszyńska 34, 60-479, Poznań, Poland.
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Ditzinger F, Scherer U, Schönenberger M, Holm R, Kuentz M. Modified Polymer Matrix in Pharmaceutical Hot Melt Extrusion by Molecular Interactions with a Carboxylic Coformer. Mol Pharm 2018; 16:141-150. [DOI: 10.1021/acs.molpharmaceut.8b00920] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | - René Holm
- Drug Product Development, Janssen Research and Development, Johnson and Johnson, B-2340 Beerse, Belgium
- Department of Science and Environment, Roskilde University, 4000 Roskilde, Denmark
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Alskär LC, Keemink J, Johannesson J, Porter CJH, Bergström CAS. Impact of Drug Physicochemical Properties on Lipolysis-Triggered Drug Supersaturation and Precipitation from Lipid-Based Formulations. Mol Pharm 2018; 15:4733-4744. [PMID: 30142268 PMCID: PMC6209313 DOI: 10.1021/acs.molpharmaceut.8b00699] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
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In
this study we investigated lipolysis-triggered supersaturation
and precipitation of a set of model compounds formulated in lipid-based
formulations (LBFs). The purpose was to explore the relationship between
precipitated solid form and inherent physicochemical properties of
the drug. Eight drugs were studied after formulation in three LBFs,
representing lipid-rich (extensively digestible) to surfactant-rich
(less digestible) formulations. In vitro lipolysis
of drug-loaded LBFs were conducted, and the amount of dissolved and
precipitated drug was quantified. Solid form of the precipitated drug
was characterized with polarized light microscopy (PLM) and Raman
spectroscopy. A significant solubility increase for the weak bases
in the presence of digestion products was observed, in contrast to
the neutral and acidic compounds for which the solubility decreased.
The fold-increase in solubility was linked to the degree of ionization
of the weak bases and thus their attraction to free fatty acids. A
high level of supersaturation was needed to cause precipitation. For
the weak bases, the dose number indicated that precipitation would
not occur during lipolysis; hence, these compounds were not included
in further studies. The solid state analysis proved that danazol and
griseofulvin precipitated in a crystalline form, while niclosamide
precipitated as a hydrate. Felodipine and indomethacin crystals were
visible in the PLM, whereas the Raman spectra showed presence
of amorphous drug, indicating amorphous precipitation that quickly
crystallized. The solid state analysis was combined with literature
data to allow analysis of the relationship between solid form and
the physicochemical properties of the drug. It was found that low
molecular weight and high melting temperature increases the probability
of crystalline precipitation, whereas precipitation in an amorphous
form was favored by high molecular weight, low melting temperature,
and positive charge.
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Affiliation(s)
- Linda C Alskär
- Department of Pharmacy , Uppsala University , Uppsala Biomedical Center P.O. Box 580, SE-751 23 Uppsala , Sweden
| | - Janneke Keemink
- Department of Pharmacy , Uppsala University , Uppsala Biomedical Center P.O. Box 580, SE-751 23 Uppsala , Sweden
| | - Jenny Johannesson
- Department of Pharmacy , Uppsala University , Uppsala Biomedical Center P.O. Box 580, SE-751 23 Uppsala , Sweden
| | - Christopher J H Porter
- Drug Delivery, Disposition and Dynamics , Monash Institute of Pharmaceutical Sciences, Monash University , 381 Royal Parade , Parkville , Victoria 3052 , Australia
| | - Christel A S Bergström
- Department of Pharmacy , Uppsala University , Uppsala Biomedical Center P.O. Box 580, SE-751 23 Uppsala , Sweden.,Drug Delivery, Disposition and Dynamics , Monash Institute of Pharmaceutical Sciences, Monash University , 381 Royal Parade , Parkville , Victoria 3052 , Australia
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Ditzinger F, Price DJ, Ilie AR, Köhl NJ, Jankovic S, Tsakiridou G, Aleandri S, Kalantzi L, Holm R, Nair A, Saal C, Griffin B, Kuentz M. Lipophilicity and hydrophobicity considerations in bio-enabling oral formulations approaches – a PEARRL review. J Pharm Pharmacol 2018; 71:464-482. [DOI: 10.1111/jphp.12984] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Accepted: 06/27/2018] [Indexed: 11/30/2022]
Abstract
Abstract
Objectives
This review highlights aspects of drug hydrophobicity and lipophilicity as determinants of different oral formulation approaches with specific focus on enabling formulation technologies. An overview is provided on appropriate formulation selection by focussing on the physicochemical properties of the drug.
Key findings
Crystal lattice energy and the octanol–water partitioning behaviour of a poorly soluble drug are conventionally viewed as characteristics of hydrophobicity and lipophilicity, which matter particularly for any dissolution process during manufacturing and regarding drug release in the gastrointestinal tract. Different oral formulation strategies are discussed in the present review, including lipid-based delivery, amorphous solid dispersions, mesoporous silica, nanosuspensions and cyclodextrin formulations.
Summary
Current literature suggests that selection of formulation approaches in pharmaceutics is still highly dependent on the availability of technological expertise in a company or research group. Encouraging is that, recent advancements point to more structured and scientifically based development approaches. More research is still needed to better link physicochemical drug properties to pharmaceutical formulation design.
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Affiliation(s)
- Felix Ditzinger
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
| | - Daniel J Price
- Analytics Healthcare, Merck KGaA, Darmstadt, Germany
- Goethe University, Frankfurt, Germany
| | - Alexandra-Roxana Ilie
- School of Pharmacy, University College Cork, Cork, Ireland
- Drug Product Development, Janssen Research and Development, Johnson and Johnson, Beerse, Belgium
| | - Niklas J Köhl
- School of Pharmacy, University College Cork, Cork, Ireland
| | - Sandra Jankovic
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
| | - Georgia Tsakiridou
- Product Design & Evaluation, Pharmathen SA, Athens, Greece
- Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Simone Aleandri
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
| | - Lida Kalantzi
- Product Design & Evaluation, Pharmathen SA, Athens, Greece
| | - René Holm
- Drug Product Development, Janssen Research and Development, Johnson and Johnson, Beerse, Belgium
| | - Anita Nair
- Analytics Healthcare, Merck KGaA, Darmstadt, Germany
| | | | | | - Martin Kuentz
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
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Jankovic S, Tsakiridou G, Ditzinger F, Koehl NJ, Price DJ, Ilie AR, Kalantzi L, Kimpe K, Holm R, Nair A, Griffin B, Saal C, Kuentz M. Application of the solubility parameter concept to assist with oral delivery of poorly water-soluble drugs – a PEARRL review. J Pharm Pharmacol 2018; 71:441-463. [DOI: 10.1111/jphp.12948] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 05/28/2018] [Indexed: 01/29/2023]
Abstract
Abstract
Objectives
Solubility parameters have been used for decades in various scientific fields including pharmaceutics. It is, however, still a field of active research both on a conceptual and experimental level. This work addresses the need to review solubility parameter applications in pharmaceutics of poorly water-soluble drugs.
Key findings
An overview of the different experimental and calculation methods to determine solubility parameters is provided, which covers from classical to modern approaches. In the pharmaceutical field, solubility parameters are primarily used to guide organic solvent selection, cocrystals and salt screening, lipid-based delivery, solid dispersions and nano- or microparticulate drug delivery systems. Solubility parameters have been applied for a quantitative assessment of mixtures, or they are simply used to rank excipients for a given drug.
Summary
In particular, partial solubility parameters hold great promise for aiding the development of poorly soluble drug delivery systems. This is particularly true in early-stage development, where compound availability and resources are limited. The experimental determination of solubility parameters has its merits despite being rather labour-intensive because further data can be used to continuously improve in silico predictions. Such improvements will ensure that solubility parameters will also in future guide scientists in finding suitable drug formulations.
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Affiliation(s)
- Sandra Jankovic
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
| | - Georgia Tsakiridou
- Pharmathen SA, Product Design & Evaluation, Athens, Greece
- Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Felix Ditzinger
- Department of Pharmaceutical Sciences, University of Basel, Basel, Switzerland
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
| | - Niklas J Koehl
- School of Pharmacy, University College Cork, Cork, Ireland
| | - Daniel J Price
- Merck Group, Molecule Characterisation, Darmstadt, Germany
- Goethe University, Frankfurt, Germany
| | - Alexandra-Roxana Ilie
- School of Pharmacy, University College Cork, Cork, Ireland
- Drug Product Development, Janssen Research and Development, Johnson & Johnson, Beerse, Belgium
| | - Lida Kalantzi
- Pharmathen SA, Product Design & Evaluation, Athens, Greece
| | - Kristof Kimpe
- Pharmaceutical Sciences, Janssen Research and Development, Johnson & Johnson, Beerse, Belgium
| | - René Holm
- Drug Product Development, Janssen Research and Development, Johnson & Johnson, Beerse, Belgium
| | - Anita Nair
- Merck Group, Molecule Characterisation, Darmstadt, Germany
| | | | - Christoph Saal
- Merck Group, Molecule Characterisation, Darmstadt, Germany
| | - Martin Kuentz
- Institute of Pharma Technology, University of Applied Sciences and Arts Northwestern Switzerland, Muttenz, Switzerland
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Sou T, Bergström CAS. Automated assays for thermodynamic (equilibrium) solubility determination. Drug Discov Today Technol 2018; 27:11-19. [PMID: 30103859 DOI: 10.1016/j.ddtec.2018.04.004] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Revised: 04/26/2018] [Accepted: 04/27/2018] [Indexed: 06/08/2023]
Abstract
Solubility is a crucial physicochemical property for drug candidates and is important in both drug discovery and development. Poor solubility is detrimental to absorption after oral administration and can mask compound activity in bioassays in various ways. Hence, solubility liabilities should ideally be identified as early as possible in the drug development process. With the increasing number of compounds as potential drug candidates, automated thermodynamic solubility assays for high throughput screening enabling rapid evaluation of a large number of compounds are becoming increasingly important. This review discusses the current status of the most widely used automated assays for thermodynamic solubility, followed by recent high throughput measurements of properties related to solubility (e.g. dissolution rate and supersaturation) and a brief overview of predictive computational methods for thermodynamic solubility reported in the literature.
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Affiliation(s)
- Tomás Sou
- Department of Pharmacy, Uppsala University, BMC P.O. Box 580, SE-751 23 Uppsala, Sweden
| | - Christel A S Bergström
- Department of Pharmacy, Uppsala University, BMC P.O. Box 580, SE-751 23 Uppsala, Sweden.
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Suys EJA, Chalmers DK, Pouton CW, Porter CJH. Polymeric Precipitation Inhibitors Promote Fenofibrate Supersaturation and Enhance Drug Absorption from a Type IV Lipid-Based Formulation. Mol Pharm 2018; 15:2355-2371. [PMID: 29659287 DOI: 10.1021/acs.molpharmaceut.8b00206] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The ability of lipid-based formulations (LBFs) to increase the solubilization, and prolong the supersaturation, of poorly water-soluble drugs (PWSDs) in the gastrointestinal (GI) fluids has generated significant interest in the past decade. One mechanism to enhance the utility of LBFs is to prolong supersaturation via the addition of polymers that inhibit drug precipitation (polymeric precipitation inhibitors or PPIs) to the formulation. In this work, we have evaluated the performance of a range of PPIs and have identified PPIs that are sufficiently soluble in LBF to allow the construction of single phase formulations. An in vitro model was first employed to assess drug (fenofibrate) solubilization and supersaturation on LBF dispersion and digestion. An in vitro-in situ model was subsequently employed to simultaneously evaluate the impact of PPI enhanced drug supersaturation on drug absorption in rats. The stabilizing effect of the polymers was polymer specific and most pronounced at higher drug loads. Polymers that were soluble in LBF allowed simple processing as single phase formulations, while formulations containing more hydrophilic polymers required polymer suspension in the formulation. The lipid-soluble polymers Eudragit (EU) RL100 and poly(propylene glycol) bis(2-aminopropyl ether) (PPGAE) and the water-soluble polymer hydroxypropylmethyl cellulose (HPMC) E4M were identified as the most effective PPIs in delaying fenofibrate precipitation in vitro. An in vitro model of lipid digestion was subsequently coupled directly to an in situ single pass intestinal perfusion assay to evaluate the influence of PPIs on fenofibrate absorption from LBFs in vivo. This coupled model allowed for real-time evaluation of the impact of supersaturation stabilization on absorptive drug flux and provided better discrimination between the different PPIs and formulations. In the presence of the in situ absorption sink, increased fenofibrate supersaturation resulted in increased drug exposure, and a good correlation was found between the degree of in vitro supersaturation and in vivo drug exposure. An improved in vitro-in vivo correlation was apparent when comparing the same formulation under different supersaturation conditions. These observations directly exemplify the potential utility of PPIs in promoting drug absorption from LBF, via stabilization of supersaturation, and further confirm that relatively brief periods of supersaturation may be sufficient to promote drug absorption, at least for highly permeable drugs such as fenofibrate.
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Niederquell A, Kuentz M. Biorelevant Drug Solubility Enhancement Modeled by a Linear Solvation Energy Relationship. J Pharm Sci 2018; 107:503-506. [DOI: 10.1016/j.xphs.2017.08.017] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Revised: 07/11/2017] [Accepted: 08/23/2017] [Indexed: 10/19/2022]
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Saal W, Wyttenbach N, Alsenz J, Kuentz M. The quest for exceptional drug solubilization in diluted surfactant solutions and consideration of residual solid state. Eur J Pharm Sci 2018; 111:96-103. [DOI: 10.1016/j.ejps.2017.09.032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Revised: 09/04/2017] [Accepted: 09/21/2017] [Indexed: 11/25/2022]
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Garg B, Beg S, Kaur R, Kumar R, Katare OP, Singh B. Long-chain triglycerides-based self-nanoemulsifying oily formulations (SNEOFs) of darunavir with improved lymphatic targeting potential. J Drug Target 2017; 26:252-266. [PMID: 28805469 DOI: 10.1080/1061186x.2017.1365875] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The current studies entail systematic development of SNEOFs containing long-chain triglycerides for improving lymphatic targeting of darunavir for complete inhibition of HIV progression. As per QbD-oriented approach for formulation development, the QTPP was defined and CQAs were earmarked. Preformulation equilibrium solubility and phase diagram studies, and risk assessment through FMEA studies identified Lauroglycol 90, Tween 80 and Transcutol HP as the lipid, emulgent and cosolvent, respectively, for formulating SNEOFs of darunavir. Systematic optimisation of SNEOFs was conducted using IV-optimal mixture design, and the optimised formulation was chosen through numerical desirability function. Characterisation of optimised SNEOFs exhibited globule size of 50 nm, >85% drug release within 15 min and >75% permeation within 45 min. In vivo lymph cannulation and in situ intestinal perfusion studies indicated significant improvement in the drug absorption parameters from SNEOFs via intestinal lymphatic pathways, owing primarily to the presence of long-chain triglycerides. Also, in vivo pharmacokinetic studies in rat corroborated significant improvement in rate and extent of drug absorption into plasma vis-à-vis pure drug. In a nutshell, these studies indicate significant improvement in the biopharmaceutical attributes of a robust and stable SNEOFs formulation of darunavir for holistic management of viral loads in lymph and blood.
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Affiliation(s)
- Babita Garg
- a University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies , Panjab University , Chandigarh , India
| | - Sarwar Beg
- a University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies , Panjab University , Chandigarh , India
| | - Ranjot Kaur
- a University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies , Panjab University , Chandigarh , India
| | - Rajendra Kumar
- b UGC-Centre of Excellence in Applications of Nanomaterials, Nanoparticles & Nanocomposites in Biomedical Sciences , Panjab University , Chandigarh , India
| | - Om Prakash Katare
- a University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies , Panjab University , Chandigarh , India
| | - Bhupinder Singh
- a University Institute of Pharmaceutical Sciences, UGC Centre of Advanced Studies , Panjab University , Chandigarh , India.,b UGC-Centre of Excellence in Applications of Nanomaterials, Nanoparticles & Nanocomposites in Biomedical Sciences , Panjab University , Chandigarh , India
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Göke K, Bunjes H. Drug solubility in lipid nanocarriers: Influence of lipid matrix and available interfacial area. Int J Pharm 2017; 529:617-28. [DOI: 10.1016/j.ijpharm.2017.07.025] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/06/2017] [Accepted: 07/08/2017] [Indexed: 01/12/2023]
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