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Zulbeari N, Holm R. A Systematic Investigation of Process Parameters for Small-Volume Aqueous Suspension Production by the Use of Focused Ultrasonication. AAPS PharmSciTech 2024; 25:185. [PMID: 39138704 DOI: 10.1208/s12249-024-02907-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Accepted: 07/30/2024] [Indexed: 08/15/2024] Open
Abstract
Aqueous suspensions containing crystalline drug in the sub-micron range is a favorable platform for long-acting injectables where particle size can be used to obtain a desired plasma-concentration profile. Stabilizers are added to the suspensions and screened extensively to define the optimal formulation composition. In the initial formulation screening the amount of drug compound can be limited, necessitating milling methods for small-volume screening predictable for scale-up. Hence, adaptive focused ultrasound was investigated as a potential milling method for rapid small-volume suspensions by identifying the critical process parameters during preparation. Suspensions containing drug compounds with different mechanical properties and thereby grindability, i.e., cinnarizine, haloperidol, and indomethacin with brittle, elastic, and plastic properties, respectively, were investigated to gain an understanding of the manufacturing with adaptive focused acoustics as well as comparison to already established milling techniques. Using a DoE-design, peak incident power was identified as the most crucial process parameter impacting the milling process for all three compounds. It was possible to decrease the sizes of drug particles to micron range after one minute of focused ultrasound exposure which was superior compared to other milling techniques (e.g., non-focused ultrasound exposure). The addition of milling beads decreased the drug particle sizes even further, thus to a lower degree than other already established milling techniques such as milling by dual centrifugation. This study thereby demonstrated that adaptive focused ultrasonication was a promising method for rapid homogenization and particle size reduction to micron range for different compounds varying in grindability without altering the crystalline structure.
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Affiliation(s)
- Nadina Zulbeari
- Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, Campusvej 55, 5230, Odense, Denmark
| | - René Holm
- Department of Physics, Chemistry, and Pharmacy, University of Southern Denmark, Campusvej 55, 5230, Odense, Denmark.
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Ding Y, Zhao T, Fang J, Song J, Dong H, Liu J, Li S, Zhao M. Recent developments in the use of nanocrystals to improve bioavailability of APIs. WILEY INTERDISCIPLINARY REVIEWS. NANOMEDICINE AND NANOBIOTECHNOLOGY 2024; 16:e1958. [PMID: 38629192 DOI: 10.1002/wnan.1958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 02/12/2024] [Accepted: 03/08/2024] [Indexed: 04/19/2024]
Abstract
Nanocrystals refer to materials with at least one dimension smaller than 100 nm, composing of atoms arranged in single crystals or polycrystals. Nanocrystals have significant research value as they offer unique advantages over conventional pharmaceutical formulations, such as high bioavailability, enhanced targeting selectivity and controlled release ability and are therefore suitable for the delivery of a wide range of drugs such as insoluble drugs, antitumor drugs and genetic drugs with broad application prospects. In recent years, research on nanocrystals has been progressively refined and new products have been launched or entered the clinical phase of studies. However, issues such as safety and stability still stand that need to be addressed for further development of nanocrystal formulations, and significant gaps do exist in research in various fields in this pharmaceutical arena. This paper presents a systematic overview of the advanced development of nanocrystals, ranging from the preparation approaches of nanocrystals with which the bioavailability of poorly water-soluble drugs is improved, critical properties of nanocrystals and associated characterization techniques, the recent development of nanocrystals with different administration routes, the advantages and associated limitations of nanocrystal formulations, the mechanisms of physical instability, and the enhanced dissolution performance, to the future perspectives, with a final view to shed more light on the future development of nanocrystals as a means of optimizing the bioavailability of drug candidates. This article is categorized under: Therapeutic Approaches and Drug Discovery > Emerging Technologies Nanotechnology Approaches to Biology > Nanoscale Systems in Biology.
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Affiliation(s)
- Yidan Ding
- China Medical University-Queen's University Belfast Joint College (CQC), China Medical University, Shenyang, China
| | - Tongyi Zhao
- China Medical University-Queen's University Belfast Joint College (CQC), China Medical University, Shenyang, China
| | - Jianing Fang
- China Medical University-Queen's University Belfast Joint College (CQC), China Medical University, Shenyang, China
| | - Jiexin Song
- China Medical University-Queen's University Belfast Joint College (CQC), China Medical University, Shenyang, China
| | - Haobo Dong
- China Medical University-Queen's University Belfast Joint College (CQC), China Medical University, Shenyang, China
| | - Jiarui Liu
- China Medical University-Queen's University Belfast Joint College (CQC), China Medical University, Shenyang, China
| | - Sijin Li
- China Medical University-Queen's University Belfast Joint College (CQC), China Medical University, Shenyang, China
- School of Pharmacy, Queen's University Belfast, Belfast, UK
| | - Min Zhao
- China Medical University-Queen's University Belfast Joint College (CQC), China Medical University, Shenyang, China
- School of Pharmacy, Queen's University Belfast, Belfast, UK
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Zulbeari N, Holm R. Is roller milling - the low energy wet bead media milling - a reproducible and robust milling method for formulation investigation of aqueous suspensions? Int J Pharm 2024; 651:123733. [PMID: 38142873 DOI: 10.1016/j.ijpharm.2023.123733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2023] [Revised: 12/11/2023] [Accepted: 12/20/2023] [Indexed: 12/26/2023]
Abstract
Long-acting injectables have shown to offer a prolonged release of a drug compound up to several months, providing the opportunity to increase patient compliance for treatment of long-term and chronic conditions. Different formulation technologies have already been utilized for long-acting injectables, and especially aqueous suspensions with crystalline drug particles in the sub-micron range have sparked an interest for future development of long-acting injectables. Wet bead milling is a common top-down process used to prepare nano- and microsuspensions of crystalline drug particles with the addition of surfactants in the dispersion medium, which are working as stabilizers to prevent agglomeration or crystal growth that ultimately may influence the physical stability of nano- and microsuspensions. To examine the reproducibility of the suspensions manufactured and the behavior of their physical stability, i.e., changes in particle sizes over time, low-energy roller mill was utilized for the manufacturing of nano- and microsuspensions in the present study. Investigated formulation parameters was stabilizer type and concentration and milling parameters varied in bead size and duration of milling. The obtained results demonstrated that the physical stability of suspensions containing the two model compounds, cinnarizine and indomethacin, was highly affected by the constitution of surfactant and processing. Various size classes were obtained and accompanied by high variations between the individual samples that indicated uneven and unpredictable milling by the low-energy roller mill, limiting the possibility to prepare reproducible and physical stable suspensions. Short-term stability studies revealed clear tendencies towards reversed Ostwald ripening of suspensions stabilized with poloxamer 188 that contained cinnarizine as the drug compound, and to a smaller extent suspensions containing indomethacin. Furthermore, X-ray Powder Diffraction confirmed no alteration of the drug compounds crystal structure after roller milling for multiple days.
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Affiliation(s)
- Nadina Zulbeari
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark
| | - René Holm
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark.
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Zulbeari N, Holm R. Wet bead milling by dual centrifugation - An approach to obtain reproducible and differentiable suspensions. Int J Pharm 2023; 646:123455. [PMID: 37776963 DOI: 10.1016/j.ijpharm.2023.123455] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2023] [Revised: 09/15/2023] [Accepted: 09/27/2023] [Indexed: 10/02/2023]
Abstract
Aqueous nano- and microsuspensions containing poorly water-soluble, crystalline drug particles have in the recent years sparked an interest for the preparation of long-acting injectables (LAIs), which increase patient compliance for patients treated for long-term or chronic conditions. Nano- and microsuspensions are often prepared by top-down methods, such as wet bead milling, with the addition of stabilizers in the dispersion media, such as surfactants, which influence the particle sizes and physical stability of the suspension. To improve the efficacy of formulation screening for nano- and microsuspensions, dual centrifugation was utilized in this study whereby 40 samples could be manufactured simultaneously to support the formulation definition. Hence, the type and concentration of stabilizer as well as bead size and milling speed was investigated throughout the presented study, but also the ability of the method to produce consistent data was investigated. The obtained results demonstrated that the particle profile obtained after milling was very consistent from run to run and so was the observed stability data, i.e., running n = 1 experiment per combination could clearly be justified as a predictable approach for the formulation screening. The data also showed that the stabilizer, as well as its concentration highly influenced the physical stability of suspensions containing both the two investigated model compounds, i.e., both cinnarizine and indomethacin, where the biggest increase in particle sizes was observed within the first week. For short-term studies, polysorbate 20 was found to be a suitable stabilizer for suspensions of cinnarizine, whereas sodium dodecyl sulphate was more suitable for indomethacin suspensions immediately after the milling even with 1% (w/v) stabilizer solution, but not sufficient for short-term stability due to an insufficient stabilizer concentration. Smaller particles sizes could be achieved by milling the suspensions with the smallest bead sizes and at the highest speed of 1500 rpm without disrupting the crystal structure of the active pharmaceutical ingredient (API), which was confirmed by X-ray Powder Diffraction.
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Affiliation(s)
- Nadina Zulbeari
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark
| | - René Holm
- Department of Physics, Chemistry and Pharmacy, University of Southern Denmark, Campusvej 55, 5230 Odense, Denmark.
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Koehler JK, Schmager S, Bender V, Steiner D, Massing U. Preparation of Nanosized Pharmaceutical Formulations by Dual Centrifugation. Pharmaceuticals (Basel) 2023; 16:1519. [PMID: 38004385 PMCID: PMC10675754 DOI: 10.3390/ph16111519] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 10/16/2023] [Accepted: 10/23/2023] [Indexed: 11/26/2023] Open
Abstract
Dual centrifugation (DC) is an innovative in-vial homogenization and in-vial nanomilling technique that has been in use for the preparation of liposomes for more than one decade. Since then, DC has continuously been developed for preparing various liposomes and other lipid nanoparticles including emulsions and solid lipid nanoparticles (SLNs) as well as polymersomes and nanocrystals. Improvements in equipment technology have been achieved over the past decade, so that DC is now on its way to becoming the quasi-standard for the simple, fast, and aseptic production of lipid nanoparticles and nanocrystals in small and medium batch sizes, including the possibility of simple and fast formulation screening or bedside preparations of therapeutic nanoparticles. More than 68 publications in which DC was used to produce nanoparticles have appeared since then, justifying an initial review of the use of DC for pharmaceutical nanotechnology.
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Affiliation(s)
- Jonas K. Koehler
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104 Freiburg im Breisgau, Germany; (J.K.K.); (S.S.); (V.B.)
| | - Stefanie Schmager
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104 Freiburg im Breisgau, Germany; (J.K.K.); (S.S.); (V.B.)
| | - Valentin Bender
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104 Freiburg im Breisgau, Germany; (J.K.K.); (S.S.); (V.B.)
| | - Denise Steiner
- Department of Pharmaceutical Technology, Eberhard Karls University Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
- Institute of Pharmaceutical Technology and Biopharmacy, University of Münster, Corrensstraße 48, 48149 Münster, Germany
| | - Ulrich Massing
- Institute of Pharmaceutical Sciences, University of Freiburg, 79104 Freiburg im Breisgau, Germany; (J.K.K.); (S.S.); (V.B.)
- Andreas Hettich GmbH & Co. KG, 78532 Tuttlingen, Germany
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Marques SM, Kumar L. Factors affecting the preparation of nanocrystals: characterization, surface modifications and toxicity aspects. Expert Opin Drug Deliv 2023; 20:871-894. [PMID: 37222381 DOI: 10.1080/17425247.2023.2218084] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 05/22/2023] [Indexed: 05/25/2023]
Abstract
INTRODUCTION The fabrication of well-defined nanocrystals in size and form is the focus of much investigation. In this work, we have critically reviewed several recent instances from the literature that shows how the production procedure affects the physicochemical properties of the nanocrystals. AREAS COVERED Scopus, MedLine, PubMed, Web of Science, and Google Scholar were searched for peer-review articles published in the past few years using different key words. Authors chose relevant publications from their files for this review. This review focuses on the range of techniques available for producing nanocrystals. We draw attention to several recent instances demonstrating the impact of various process and formulation variables that affect the nanocrystals' physicochemical properties. Moreover, various developments in the characterization techniques explored for nanocrystals concerning their size, morphology, etc. have been discussed. Last but not least, recent applications, the effect of surface modifications, and the toxicological traits of nanocrystals have also been reviewed. EXPERT OPINION The selection of an appropriate production method for the formation of nanocrystals, together with a deep understanding of the relationship between the drug's physicochemical properties, unique features of the various formulation alternatives, and anticipated in-vivo performance, would significantly reduce the risk of failure during human clinical trials that are inadequate.
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Affiliation(s)
- Shirleen Miriam Marques
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Lalit Kumar
- Department of Pharmaceutics, Manipal College of Pharmaceutical Sciences, Manipal Academy of Higher Education, Manipal, Karnataka, India
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research, Hajipur, Bihar, India
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Predicting the Temperature Evolution during Nanomilling of Drug Suspensions via a Semi-Theoretical Lumped-Parameter Model. Pharmaceutics 2022; 14:pharmaceutics14122840. [PMID: 36559333 PMCID: PMC9788500 DOI: 10.3390/pharmaceutics14122840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 12/14/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Although temperature can significantly affect the stability and degradation of drug nanosuspensions, temperature evolution during the production of drug nanoparticles via wet stirred media milling, also known as nanomilling, has not been studied extensively. This study aims to establish both descriptive and predictive capabilities of a semi-theoretical lumped parameter model (LPM) for temperature evolution. In the experiments, the mill was operated at various stirrer speeds, bead loadings, and bead sizes, while the temperature evolution at the mill outlet was recorded. The LPM was formulated and fitted to the experimental temperature profiles in the training runs, and its parameters, i.e., the apparent heat generation rate Qgen and the apparent overall heat transfer coefficient times surface area UA, were estimated. For the test runs, these parameters were predicted as a function of the process parameters via a power law (PL) model and machine learning (ML) model. The LPM augmented with the PL and ML models was used to predict the temperature evolution in the test runs. The LPM predictions were also compared with those of an enthalpy balance model (EBM) developed recently. The LPM had a fitting capability with a root-mean-squared error (RMSE) lower than 0.9 °C, and a prediction capability, when augmented with the PL and ML models, with an RMSE lower than 4.1 and 2.1 °C, respectively. Overall, the LPM augmented with the PL model had both good descriptive and predictive capability, whereas the one with the ML model had a comparable predictive capability. Despite being simple, with two parameters and obviating the need for sophisticated numerical techniques for its solution, the semi-theoretical LPM generally predicts the temperature evolution similarly or slightly better than the EBM. Hence, this study has provided a validated, simple model for pharmaceutical engineers to simulate the temperature evolution during the nanomilling process, which will help to set proper process controls for thermally labile drugs.
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Rashed M, Dadashzadeh S, Bolourchian N. The Impact of Process and Formulation Parameters on the Fabrication of Efavirenz Nanosuspension to Improve Drug Solubility and Dissolution. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH : IJPR 2022; 21:e129409. [PMID: 36942076 PMCID: PMC10024318 DOI: 10.5812/ijpr-129409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/24/2022] [Accepted: 08/28/2022] [Indexed: 11/16/2022]
Abstract
Background Efavirenz nanosuspensions (EZ-NSs) were developed by the wet milling method as the most promising top-down nanosizing technique. Different process and formulation parameters were studied and optimized to produce appropriate EZ-NS in suitable conditions to enhance drug dissolution. Methods In the preliminary studies, various polymeric stabilizers, including Pluronic F68, sodium carboxymethylcellulose (CMC), hydroxypropyl methylcellulose (HPMC), and polyvinyl alcohol (PVA), as well as different sizes and weight of milling beads were used to prepare NSs. The effect of sodium lauryl sulfate (SLS) concentration on the NS properties was also evaluated. The influence of other formulation and process parameters, including polymer concentration, milling speed, and milling time, on the particle size and distribution of NSs were investigated using Box-Behnken design. The optimized freeze-dried nanosuspension was characterized by redispersibility, physicochemical properties, and stability. Results A combination of PVA and SLS was selected as steric and electrostatic stabilizers. The optimum EZ-NS displayed a uniform size distribution with a mean particle size and zeta potential of 254.4 nm and 21.1 mV, respectively. The solidified nanosuspension was well redispersed to the original nanoparticles. Significantly enhanced aqueous solubility (about 11-fold) and accelerated dissolution rate were observed for the optimized formulation. This could be attributed to the reduced particle size and partial amorphization of EZ during the preparation process, studied by X-ray diffraction. Accelerated studies confirmed the stability of the optimum freeze-dried formulation over the examined period of three months. Conclusions Optimization of different variables led to the formation of EZ-NSs with desired properties through wet milling in a very short time compared to the previous study and therefore reduced production costs. This formulation seems to be a suitable approach for solubility and dissolution enhancement of EZ and may have a great potential to improve the drug's oral bioavailability.
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Affiliation(s)
- Mahtab Rashed
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Simin Dadashzadeh
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Noushin Bolourchian
- Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Corresponding Author: Department of Pharmaceutics and Pharmaceutical Nanotechnology, School of Pharmacy, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Liu J, Li S, Ao W, Li Y, Xiao Y, Bai M. Fabrication of an aprepitant nanosuspension using hydroxypropyl chitosan to increase the bioavailability. Biochem Biophys Res Commun 2022; 631:72-77. [PMID: 36179498 DOI: 10.1016/j.bbrc.2022.09.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 08/24/2022] [Accepted: 09/07/2022] [Indexed: 11/16/2022]
Abstract
Aprepitant has been classified into BCS class IV, which has low permeability and poor water solubility, resulting in low bioavailability. This study focused on improving its permeability and solubility in order to improve the oral bioavailability of aprepitant. Hydroxypropyl chitosan (HPCS) was used as a stabilizer for the nanosuspension and wet milling was utilized for improving aprepitant's bioavailability and solubility. The resulting nanosuspension size was 151 ± 14.5 nm and its zeta potential was 63.5 ± 0.34 Mv. The spectral characteristics (XRPD, DSC, TEM) of the nanosuspension suggested that aprepitant existed in the crystalline form and that nanosuspension had 2-fold higher solubility than aprepitant. Hydroxypropyl chitosan can significantly reduce the TEER of Caco-2 cells and the Papp of the suspension in Caco-2 cells increased by 2.2 times compared with aprepitant. The relative bioavailability of the nanosuspension was 147.7% compared with the commercial capsule.
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Affiliation(s)
- Jinwen Liu
- College of Traditional Mongolian Medicine, Inner Mongolia Minzu University, Tongliao, 028000, China; School of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, 150040, China
| | - Shuyan Li
- College of Traditional Mongolian Medicine, Inner Mongolia Minzu University, Tongliao, 028000, China
| | - Wuliji Ao
- Inner Mongolia Research Institute of Traditional Mongolian Medicine Engineering Technology, Tongliao, 028000, China
| | - Yongji Li
- School of Pharmacy, Heilongjiang University of Traditional Chinese Medicine, Harbin, 150040, China
| | - Yingge Xiao
- College of Traditional Mongolian Medicine, Inner Mongolia Minzu University, Tongliao, 028000, China
| | - Meirong Bai
- College of Traditional Mongolian Medicine, Inner Mongolia Minzu University, Tongliao, 028000, China; Key Laboratory of Monglian Medicine Research and Development Engineering, Ministry of Education, Tongliao, 028000, China.
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Maar S, Damm C, Peukert W. Wet nanomilling of naproxen using a novel stabilization mechanism via zirconium complexation. ADV POWDER TECHNOL 2022. [DOI: 10.1016/j.apt.2022.103723] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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Guner G, Elashri S, Mehaj M, Seetharaman N, Yao HF, Clancy DJ, Bilgili E. An Enthalpy-Balance Model for Timewise Evolution of Temperature during Wet Stirred Media Milling of Drug Suspensions. Pharm Res 2022; 39:2065-2082. [PMID: 35915319 DOI: 10.1007/s11095-022-03346-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 07/14/2022] [Indexed: 11/30/2022]
Abstract
PURPOSE Nanosuspensions have been used for enhancing the bioavailability of poorly soluble drugs. This study explores the temperature evolution during their preparation in a wet stirred media mill using a coupled experimental-enthalpy balance approach. METHODS Milling was performed at three levels of stirrer speed, bead loading, and bead sizes. Temperatures were recorded over time, then simulated using an enthalpy balance model by fitting the fraction of power converted to heat ξ. Moreover, initial and final power, ξ, and temperature profiles at 5 different test runs were predicted by power-law (PL) and machine learning (ML) approaches. RESULTS Heat generation was higher at the higher stirrer speed and bead loading/size, which was explained by the higher power consumption. Despite its simplicity with a single fitting parameter ξ, the enthalpy balance model fitted the temperature evolution well with root mean squared error (RMSE) of 0.40-2.34°C. PL and ML approaches provided decent predictions of the temperature profiles in the test runs, with RMSE of 0.93-4.17 and 1.00-2.17°C, respectively. CONCLUSIONS We established the impact of milling parameters on heat generation-power and demonstrated the simulation-prediction capability of an enthalpy balance model when coupled to the PL-ML approaches.
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Affiliation(s)
- Gulenay Guner
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Sherif Elashri
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Mirsad Mehaj
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Natasha Seetharaman
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, USA
| | - Helen F Yao
- GlaxoSmithKline, Drug Product Development, GlaxoSmithKline, Collegeville, PA, 19426, USA
| | - Donald J Clancy
- GlaxoSmithKline, Drug Product Development, GlaxoSmithKline, Collegeville, PA, 19426, USA
| | - Ecevit Bilgili
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, USA.
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Willmann AC, Berkenfeld K, Faber T, Wachtel H, Boeck G, Wagner KG. Itraconazole Nanosuspensions via Dual Centrifugation Media Milling: Impact of Formulation and Process Parameters on Particle Size and Solid-State Conversion as Well as Storage Stability. Pharmaceutics 2022; 14:pharmaceutics14081528. [PMID: 35893783 PMCID: PMC9332252 DOI: 10.3390/pharmaceutics14081528] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 07/19/2022] [Accepted: 07/20/2022] [Indexed: 02/04/2023] Open
Abstract
Nanocrystal suspensions proved to be a potent enabling principle for biopharmaceutics classification system class II drugs with dissolution limited bioavailability. In the example of itraconazole (ITZ) as a model drug combined with electrosteric stabilization using hydroxypropyl cellulose (HPC-SL), sodium dodecyl sulfate (SDS) and polysorbate 80 (PS80), the impacts of formulation and process parameters of a dual centrifugal mill on material attributes such as particle size, zeta potential, particle morphology, storage stability and especially solid-state characteristics were evaluated. A minimal concentration of 0.9% (w/w) HPC-SL, 0.14% (w/w) SDS and 0.07% (w/w) PS80 was necessary for sufficient nanoparticle stabilization. Despite the minor effect of PS80, its presence was beneficial for electrosteric stabilization. Choosing lower stabilizer concentrations resulted in a pronounced increase in particle size due to agglomeration, which was confirmed by SEM imaging and a decrease in zeta potential in combination with an amorphization of the particles. Milling temperature had no significant impact on the particle size, whereas milling speed and the size of the milling beads used were found to have a strong impact on the critical material attributes such as particle size and polydispersity index. The smallest particle sizes could be obtained by using the smallest milling bead size. However, the smallest obtainable particle size could only be achieved by using two-fold stabilizer concentrations, as smaller particles exhibit a larger specific surface area.
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Affiliation(s)
- Ann-Cathrin Willmann
- Pharmaceutical Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Birkendorfer Straße 65, 88397 Biberach, Germany;
- Department of Pharmaceutical Technology, University of Bonn, Gerhard-Domagk-Straße 3, 53121 Bonn, Germany; (K.B.); (T.F.)
| | - Kai Berkenfeld
- Department of Pharmaceutical Technology, University of Bonn, Gerhard-Domagk-Straße 3, 53121 Bonn, Germany; (K.B.); (T.F.)
| | - Thilo Faber
- Department of Pharmaceutical Technology, University of Bonn, Gerhard-Domagk-Straße 3, 53121 Bonn, Germany; (K.B.); (T.F.)
| | - Herbert Wachtel
- Device Development, Boehringer Ingelheim GmbH & Co. KG, Binger Straße 173, 55216 Ingelheim am Rhein, Germany;
| | - Georg Boeck
- Department Discovery Research, Boehringer Ingelheim RCV GmbH & Co. KG, Dr.-Boehringer-Gasse 5-11, 1121 Vienna, Austria;
| | - Karl G. Wagner
- Department of Pharmaceutical Technology, University of Bonn, Gerhard-Domagk-Straße 3, 53121 Bonn, Germany; (K.B.); (T.F.)
- Correspondence: ; Tel.: +49-228-73-5271
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Guner G, Seetharaman N, Elashri S, Mehaj M, Bilgili E. Analysis of heat generation during the production of drug nanosuspensions in a wet stirred media mill. Int J Pharm 2022; 624:122020. [PMID: 35842083 DOI: 10.1016/j.ijpharm.2022.122020] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/08/2022] [Accepted: 07/10/2022] [Indexed: 11/29/2022]
Abstract
Although heat is generated during the wet stirred media milling of drug suspensions, leading to notable temperature rise, a comprehensive analysis of heat generation does not exist. Hence, we investigated the impact of stirrer speed, bead loading, and bead size at three levels on the evolution of suspension temperature at the mill outlet during the milling of fenofibrate. The particle sizes and viscosities of the milled suspensions and power were measured. Our results suggest that stirrer speed had the most significant impact on the temperature increase, followed by bead loading and bead size. Both the time when the temperature reached 22 °C and the temperature at 5 min of milling were strongly correlated with the power. Assessing the impacts of the process parameters on the temperature rise, cycle time, power, and median particle size holistically, an optimal milling process was identified: 3000 rpm with 50% loading of 200 or 400 µm beads. A power number correlation was established to calculate power at any milling condition which determines the heat generation rate. Overall, this study indicated the importance of developing a good understanding of heat generation during nanomilling for development of a robust milling process especially for thermally labile drugs.
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Affiliation(s)
- Gulenay Guner
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, United States
| | - Natasha Seetharaman
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, United States
| | - Sherif Elashri
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, United States
| | - Mirsad Mehaj
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, United States
| | - Ecevit Bilgili
- Otto H. York Department of Chemical and Materials Engineering, New Jersey Institute of Technology, Newark, NJ, United States.
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14
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Tian Y, Wang S, Yu Y, Sun W, Fan R, Shi J, Gu W, Wang Z, Zhang H, Zheng A. Review of nanosuspension formulation and process analysis in wet media milling using microhydrodynamic model and emerging characterization methods. Int J Pharm 2022; 623:121862. [PMID: 35671851 DOI: 10.1016/j.ijpharm.2022.121862] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2022] [Revised: 05/04/2022] [Accepted: 05/23/2022] [Indexed: 11/18/2022]
Abstract
Wet media milling is a popular technology used to prepare nanosuspensions. However, the theories and methods to guide the research on the formulation and process affecting wet media milling remain limited. The research on wet media milling follows a "black box" approach to a certain extent. This review focuses on exploring the formulation and process parameters factors in wet media milling. The formulation factors include the concentration, hydrophilicity/hydrophobicity, and structure of the drug and stabilizer, whereas the milling process parameters include the milling speed, milling time, and material, size, and filling volume of milling beads. Contrary to other reviews, this review attempts to quantify and visualize these factors by combining a microhydrodynamic model with emerging characterization methods to provide a scientific basis for the selection of nanosuspension formulations and process parameters, as opposed to the conventional trial-and-error approach.
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Affiliation(s)
- Yang Tian
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China
| | - Shanshan Wang
- Tianjin University of Science and Technology, Tianjin 300457, China
| | - Yao Yu
- Pharmaceutical Experiment Center, College of Pharmacy, Yanbian University, Yanji 133002, China
| | - Wenjun Sun
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China
| | - Ranran Fan
- Bengbu Medical College, Anhui 233003, China
| | - Junfeng Shi
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan 430074, China
| | - Weinan Gu
- School of pharmacy, XuZhou Medical University, XuZhou 221004, China
| | - Zengming Wang
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China
| | - Hui Zhang
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China.
| | - Aiping Zheng
- Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, Academy of Military Sciences, Beijing 100850, China.
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15
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Aquib M, Zhang H, Raza F, Banerjee P, Bavi R, Kesse S, Boakye-Yiadom KO, Filli MS, Farooq MA, Wang B. Delivery of repurposed disulfiram by aminated mesoporous silica nanoparticles for anticancer therapy. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117065] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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16
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Oktay AN, Ilbasmis-Tamer S, Uludag O, Celebi N. Enhanced Dermal Delivery of Flurbiprofen Nanosuspension Based Gel: Development and Ex Vivo Permeation, Pharmacokinetic Evaluations. Pharm Res 2021; 38:991-1009. [PMID: 34086139 DOI: 10.1007/s11095-021-03060-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2021] [Accepted: 05/11/2021] [Indexed: 10/21/2022]
Abstract
PURPOSE The objective of this study was to optimize the Flurbiprofen (FB) nanosuspension (NS) based gel and to investigate the in vitro release, ex vivo permeation, the plasma concentration-time profile and pharmacokinetic parameters. METHODS FB-NSs were developed using the wet milling process with the Design of Experiment (DoE) approach. The optimum FB-NS was characterized on the basis of SEM, DSC, XRPD, solubility and permeation studies. The dermal gel was prepared by incorporating FB-NS into HPMC gel. Then the in-vitro release, ex vivo permeation studies were performed, and pharmacokinetic studies were evaluated on rats. RESULTS The particle size, polydispersity index and zeta potential values of optimum NS were determined as 237.7 ± 6.8 nm, 0.133 ± 0.030 and - 30.4 ± 0.7 mV, respectively. By means of the surfactant content and nanosized particles of the nanosuspension, the solubility of FB was increased about 7-fold. The percentage permeated amount of FB from FB-NS gel (8.40%) was also found to be higher than the physical mixture (5.25%) and coarse suspension (reference) (2.08%) gels. The pharmacokinetic studies showed that the Cmax of FB-NS gel was 2.5 times higher than the reference gel, while AUC0-24 was 2.96 times higher. CONCLUSION FB-NSs were successfully prepared with a wet milling method and optimized with the DoE approach. The optimized FB nanosuspension gel provided better permeation and pharmacokinetic performance compared to FB coarse suspension gel.
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Affiliation(s)
- Ayse Nur Oktay
- Department of Pharmaceutical Technology, Gazi University-Faculty of Pharmacy, Ankara, Turkey.,Department of Pharmaceutical Technology, University of Health Sciences- Gulhane Faculty of Pharmacy, Ankara, Turkey
| | - Sibel Ilbasmis-Tamer
- Department of Pharmaceutical Technology, Gazi University-Faculty of Pharmacy, Ankara, Turkey
| | - Orhan Uludag
- Department of Pharmacology, Gazi University-Faculty of Pharmacy, Ankara, Turkey
| | - Nevin Celebi
- Department of Pharmaceutical Technology, Gazi University-Faculty of Pharmacy, Ankara, Turkey. .,Department of Pharmaceutical Technology, Başkent University-Faculty of Pharmacy, Ankara, Turkey.
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17
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Farooq MA, Jabeen A, Wang B. Formulation, optimization, and characterization of whey protein isolate nanocrystals for celecoxib delivery. J Microencapsul 2021; 38:314-323. [PMID: 33896352 DOI: 10.1080/02652048.2021.1915398] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
AIM Current study aimed to improve the solubility and release profile of the celecoxib for cancer application. However, the low water solubility of celecoxib limited its application for cancer chemotherapy. Hence, new drug delivery-based approaches are compulsory for the efficient delivery of hydrophobic celecoxib for chemotherapy. METHODS The celecoxib-loaded nanocrystals were prepared by anti-solvent precipitation-ultrasonication technique, and the formulation was optimised through various process parameters. RESULTS The optimised formulation had an average particle diameter of 171.09 ± 6.23 nm, with a PDI of 0.123 ± 0.009 and high ZP -27.3 ± 0.2 mV. The optimised formulation was stable, had higher entrapment efficiency 97.26 ± 1.12%. The conformational changes in the denatured protein solution were detected through fluorescence spectroscopy. The transmission electron microscopy investigation showed rod-shaped nanocrystals morphology, and no chemical interactions were observed in optimised formulation through FTIR. The DSC and PXRD analysis exhibited an amorphous state of the freeze-dried formulation drug. Also, optimised nanocrystals enhance drug solubility around 26.01-fold, 15.51-fold and 19.08-fold in purified water, pH 6.8 and pH 7.4, and accomplish sustained drug delivery, respectively. CONCLUSION It can be concluded that biopolymer-coated celecoxib nanocrystals might be potential drug delivery of hydrophobic molecules for cancer therapy.
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Affiliation(s)
- Muhammad Asim Farooq
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, PR China.,Drug Delivery, Disposition and Dynamics, Monash Institute of Pharmaceutical Sciences, Monash University, Melbourne, Australia
| | - Amna Jabeen
- Faculty of Pharmacy, Lahore College of Pharmaceutical Sciences, Lahore, Pakistan
| | - Bo Wang
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, PR China
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18
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Gretić M, Štanfel M, Barbarić J, Rimac N, Matijašić G. In vitro behavior of dronedarone hydrochloride loaded pellets using vacuum impregnation technique. Eur J Pharm Biopharm 2021; 162:70-81. [PMID: 33727144 DOI: 10.1016/j.ejpb.2021.03.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 02/25/2021] [Accepted: 03/06/2021] [Indexed: 11/18/2022]
Abstract
Pharmaceutical pellets are a versatile and adaptable drug carrier system with pharmacological and technological advantages specific to multiparticulate delivery systems. Depending on their porosity and formulation procedure, a controlled drug release pattern can be achieved using a variety of pellet production and drug loading techniques. In the present paper, we have developed microcrystalline cellulose based porous pellets by extrusion/spheronization process. Two types of dronedarone hydrochloride suspensions were prepared in order to load drug onto carrier pellets using vacuum impregnation method. Despite its extensive use in the biomedical field of research, this technique hasn't been applied yet as means of incorporating drugs into inert and porous pellets. In addition, drug release control was tested by spray coating the pellets with hydroxypropyl methylcellulose in a fluidized bed. Pellet morphology, porosity and dissolution behavior were determined and the results indicate that DNR particle size affects the drug incorporation mechanism and, therefore, drug release patterns obtained through in vitro tests. Additionally, it was proven that polymer-based film-coat significantly slows down the drug release from the pellets. In vitro studies of the coated pellets in biorelevant fluids have shown that DNR release profiles are directly related to the type of dissolution media used. Vacuum impregnation was found to be promising technique for incorporation of DNR onto the surface of the porous pellets and into their pores.
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Affiliation(s)
- M Gretić
- University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, Croatia.
| | - M Štanfel
- University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, Croatia.
| | - J Barbarić
- University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, Croatia.
| | - N Rimac
- University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, Croatia.
| | - G Matijašić
- University of Zagreb, Faculty of Chemical Engineering and Technology, Zagreb, Croatia.
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19
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da Igreja P, Erve A, Thommes M. Melt milling as manufacturing method for solid crystalline suspensions. Eur J Pharm Biopharm 2020; 158:245-253. [PMID: 33253891 DOI: 10.1016/j.ejpb.2020.11.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Revised: 11/16/2020] [Accepted: 11/24/2020] [Indexed: 11/25/2022]
Abstract
Production of submicron particles (0.1-1 μm) has been identified by the pharmaceutical industry as a key technology to enhance the bioavailability of poorly water-soluble drugs. However, nanosuspensions derived from commonly applied wet milling suffer from long-term stability issues, making further downstream processing necessary. In previous works, the formulation as a long-term stable solid crystalline suspension (SCS) was introduced, for which the crystalline drug is ground in a (molten) hydrophilic carrier matrix. The model formulation of the antimycotic Griseofulvin and the sugar alcohol Xylitol was reused for comparative purposes. Due to process limitations regarding the degree of comminution, the present work demonstrates the application of fine grinding in the framework of SCS manufacturing. A custom-built mill with annular gap geometry successfully yielded particles in the targeted submicron range. A process optimization study lead to improved energy utilization during grinding, which reduced the necessary grinding time and, thereby, the thermal exposition of the drug. Investigation of solid-state properties of the SCS, via differential scanning calorimetry and x-ray powder diffraction, showed no alteration even for extended grinding times. In dissolution experiments, the melt-milled SCS outperformed its predecessors, although mostly agglomerates were found by SEM imaging in the solidified product. In conclusion, melt milling is a valuable tool to overcome low aqueous solubility.
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Affiliation(s)
- Philip da Igreja
- INVITE GmbH, Chempark Building W32, 51368 Leverkusen, Germany; Laboratory of Solids Process Engineering, Department of Biochemical and Chemical Engineering, TU Dortmund University, 44227 Dortmund, Germany
| | - Annika Erve
- Laboratory of Solids Process Engineering, Department of Biochemical and Chemical Engineering, TU Dortmund University, 44227 Dortmund, Germany
| | - Markus Thommes
- Laboratory of Solids Process Engineering, Department of Biochemical and Chemical Engineering, TU Dortmund University, 44227 Dortmund, Germany.
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20
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Karakucuk A, Celebi N. Investigation of Formulation and Process Parameters of Wet Media Milling to Develop Etodolac Nanosuspensions. Pharm Res 2020; 37:111. [PMID: 32476048 DOI: 10.1007/s11095-020-02815-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 04/02/2020] [Indexed: 12/19/2022]
Abstract
PURPOSE Etodolac (ETD) is one of the non-steroidal anti-inflammatory drugs which has low aqueous solubility issues. The objective of this study was to develop ETD nanosuspensions to improve its poor aqueous solubility properties while investigating formulation and process parameters of wet media milling method via design of experiment (DoE) approach. METHODS The critical formulation parameters (CFP) were selected as ETD amount, stabilizer type and ratio as well as critical process parameters (CPP) which were bead size, milling time and milling speed. The two-factorial-23 and The Box-Benkhen Designs were generated to evaluate CFP and CPP, respectively. Particle size (PS), polydispersity index (PDI) and zeta potential (ZP) were analyzed as dependent variables. Characterization, physical stability and solubility studies were performed. RESULTS Optimum nanosuspensions stabilized by PVP K30 and Poloxamer 188 showed 188.5 ± 1.6 and 279.3 ± 6.1 nm of PS, 0.161 ± 0.049 and 0.345 ± 0.007 PDI, 14.8 ± 0.3 and 16.5 ± 0.4 mV of ZP values, respectively. The thermal properties of ETD did not change after milling and lyophilization process regarding to DSC analysis. Also, the crystalline state of ETD was preserved. The morphology of particle was smooth and spherical on SEM. The dry-nanosuspensions stayed physically stable for six months at room temperature. The solubility of nanosuspensions increased up to 13.0-fold in comparison with micronized ETD. CONCLUSIONS In conclusion, it is found that the poor solubility issue of ETD can be solved by nanosuspension. DoE approach provided benefits such as reducing number of experiments, saving time and improving final product quality by using wet media milling.
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Affiliation(s)
- Alptug Karakucuk
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Gazi University, Etiler-Yenimahalle, Ankara, Turkey.
| | - Nevin Celebi
- Faculty of Pharmacy, Department of Pharmaceutical Technology, Gazi University, Etiler-Yenimahalle, Ankara, Turkey
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21
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Wewers M, Czyz S, Finke JH, John E, Van Eerdenbrugh B, Juhnke M, Bunjes H, Kwade A. Influence of Formulation Parameters on Redispersibility of Naproxen Nanoparticles from Granules Produced in a Fluidized Bed Process. Pharmaceutics 2020; 12:pharmaceutics12040363. [PMID: 32316108 PMCID: PMC7238015 DOI: 10.3390/pharmaceutics12040363] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/09/2020] [Accepted: 04/14/2020] [Indexed: 12/30/2022] Open
Abstract
The particle size reduction of active pharmaceutical ingredients is an efficient method to overcome challenges associated with a poor aqueous solubility. With respect to stability and patient's convenience, the corresponding nanosuspensions are often further processed to solid dosage forms. In this regard, the influence of several formulation parameters (i.e., type of carrier material, type and amount of additional polymeric drying excipient in the nanosuspension) on the redispersibility of naproxen nanoparticle-loaded granules produced in a fluidized bed process was investigated. The dissolution rate of the carrier material (i.e., sucrose, mannitol, or lactose) was identified as a relevant material property, with higher dissolution rates (sucrose > mannitol > lactose) resulting in better redispersibility of the products. Additionally, the redispersibility of the product granules was observed to improve with increasing amounts of polymeric drying excipient in the nanosuspension. The redispersibility was observed to qualitatively correlate with the degree of nanoparticle embedding on the surface of the corresponding granules. This embedding was assumed to be either caused by a partial dissolution and subsequent resolidification of the carrier surface dependent on the dissolution rate of the carrier material or by resolidification of the dissolved polymeric drying excipient upon drying. As the correlation between the redispersibility and the morphology of the corresponding granules was observed for all investigated formulation parameters, it may be assumed that the redispersibility of the nanoparticles is determined by their distance in the dried state.
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Affiliation(s)
- Martin Wewers
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany
- Center of Pharmaceutical Engineering (PVZ), Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - Stefan Czyz
- Center of Pharmaceutical Engineering (PVZ), Technische Universität Braunschweig, 38106 Braunschweig, Germany
- Institute of Pharmaceutical Technology, Technische Universität Braunschweig, Mendelssohnstr. 1, 38106 Braunschweig, Germany
| | - Jan Henrik Finke
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany
- Center of Pharmaceutical Engineering (PVZ), Technische Universität Braunschweig, 38106 Braunschweig, Germany
| | - Edgar John
- Novartis Pharma AG, 4002 Basel, Switzerland
| | | | | | - Heike Bunjes
- Center of Pharmaceutical Engineering (PVZ), Technische Universität Braunschweig, 38106 Braunschweig, Germany
- Institute of Pharmaceutical Technology, Technische Universität Braunschweig, Mendelssohnstr. 1, 38106 Braunschweig, Germany
| | - Arno Kwade
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany
- Center of Pharmaceutical Engineering (PVZ), Technische Universität Braunschweig, 38106 Braunschweig, Germany
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Farooq MA, Xu L, Aquib M, Ahsan A, Baig MMFA, Wang B. Denatured food protein-coated nanosuspension: A promising approach for anticancer delivery of hydrophobic drug. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.112690] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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23
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Nanoscale Delivery System for Nutraceuticals: Preparation, Application, Characterization, Safety, and Future Trends. FOOD ENGINEERING REVIEWS 2019. [DOI: 10.1007/s12393-019-09208-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Uemoto Y, Kondo K, Niwa T. Cryo-milling using a spherical sugar: Contamination-free media milling technology. Eur J Pharm Sci 2019; 136:104934. [PMID: 31125681 DOI: 10.1016/j.ejps.2019.05.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 04/25/2019] [Accepted: 05/18/2019] [Indexed: 10/26/2022]
Abstract
Milling beads experience wear upon repeated use. And milling beads made of material that is safe when ingested have not yet been developed. The present report describes the development and characteristics of spherical d-mannitol (SDM) beads, which would be safe when ingested. The model drug phenytoin was dispersed in liquid nitrogen along with SDM and the materials were agitated at high speed. The effects of the amount of beads, agitation speed, and milling time on phenytoin particle size, yield, and bead fractures were investigated using a central composite experimental design. The diameter of milled phenytoin particles decreased significantly as the amount of SDM beads and agitation speed increased. In contrast, no difference was found in the diameter with milling time. Although the fractured SDM ratio increased slightly at higher agitation speeds, the SDM was not broken and was durable enough for milling. This milling technique was applicable not only to phenytoin but also to other drug substances. Bead durability and applicability indicated that SDM can be used as wet milling beads that are considered safe for use if ingested.
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Affiliation(s)
- Yoshifumi Uemoto
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan.
| | - Keita Kondo
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
| | - Toshiyuki Niwa
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku-ku, Nagoya 468-8503, Japan
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25
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Brammann C, Mueller-Goymann CC. Incorporation of benzoyl peroxide nanocrystals into adapalene-loaded solid lipid microparticles: Part I – Nanocrystalline benzoyl peroxide. Int J Pharm 2019; 564:171-179. [DOI: 10.1016/j.ijpharm.2019.04.031] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 04/08/2019] [Accepted: 04/10/2019] [Indexed: 12/18/2022]
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Biorelevant intrinsic dissolution profiling in early drug development: Fundamental, methodological, and industrial aspects. Eur J Pharm Biopharm 2019; 139:101-114. [PMID: 30862481 DOI: 10.1016/j.ejpb.2019.03.011] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2018] [Revised: 02/07/2019] [Accepted: 03/08/2019] [Indexed: 01/24/2023]
Abstract
Intrinsic dissolution rate (IDR) is the surface specific dissolution rate of a drug. In early drug development, this property (among other parameters) is measured in order to compare different polymorphs and salt forms, guide formulation decisions, and to provide a quality marker of the active pharmaceutical ingredient (API) during production. In this review, an update on different methods and small-scale techniques that have recently evolved for determination of IDR is provided. The importance of biorelevant media and the hydrodynamic conditions of dissolution are also discussed. Different preparation techniques for samples are presented with a focus on disc, particle- and crystal-based methods. A number of small-scale techniques are then described in detail, and their applicability domains are identified. Finally, an updated industrial perspective is provided about IDR's place in the early drug development process.
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Soisuwan S, Teeranachaideekul V, Wongrakpanich A, Langguth P, Junyaprasert VB. In vitro performances and cellular uptake of clarithromycin nanocrystals produced by media milling technique. POWDER TECHNOL 2018. [DOI: 10.1016/j.powtec.2018.07.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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28
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Huang S, Zhang Q, Li H, Sun Y, Cheng G, Zou M, Piao H. Increased bioavailability of efonidipine hydrochloride nanosuspensions by the wet-milling method. Eur J Pharm Biopharm 2018; 130:108-114. [DOI: 10.1016/j.ejpb.2018.06.022] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 06/14/2018] [Accepted: 06/18/2018] [Indexed: 11/24/2022]
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Ahire E, Thakkar S, Darshanwad M, Misra M. Parenteral nanosuspensions: a brief review from solubility enhancement to more novel and specific applications. Acta Pharm Sin B 2018; 8:733-755. [PMID: 30245962 PMCID: PMC6146387 DOI: 10.1016/j.apsb.2018.07.011] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Revised: 04/20/2018] [Accepted: 06/26/2018] [Indexed: 02/01/2023] Open
Abstract
Advancements in in silico techniques of lead molecule selection have resulted in the failure of around 70% of new chemical entities (NCEs). Some of these molecules are getting rejected at final developmental stage resulting in wastage of money and resources. Unfavourable physicochemical properties affect ADME profile of any efficacious and potent molecule, which may ultimately lead to killing of NCE at final stage. Numerous techniques are being explored including nanocrystals for solubility enhancement purposes. Nanocrystals are the most successful and the ones which had a shorter gap between invention and subsequent commercialization of the first marketed product. Several nanocrystal-based products are commercially available and there is a paradigm shift in using approach from simply being solubility enhancement technique to more novel and specific applications. Some other aspects in relation to parenteral nanosuspensions are concentrations of surfactant to be used, scalability and in vivo fate. At present, there exists a wide gap due to poor understanding of these critical factors, which we have tried to address in this review. This review will focus on parenteral nanosuspensions, covering varied aspects especially stabilizers used, GRAS (Generally Recognized as Safe) status of stabilizers, scalability challenges, issues of physical and chemical stability, solidification techniques to combat stability problems and in vivo fate.
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Key Words
- ADME, absorption distribution metabolism elimination
- ASEs, aerosols solvent extractions
- AUC, area under curve
- BBB, blood–brain barrier
- BCS, Biopharmaceutical Classification System
- BDP, beclomethasone dipropionate
- CFC, critical flocculation concentration
- CLSM, confocal laser scanning microscopy
- CMC, critical micelle concentration
- DMSO, dimethyl sulfoxide
- EDI, estimated daily intake
- EHDA, electrohydrodynamic atomization
- EPAS, evaporative precipitation in aqueous solution
- EPR, enhanced permeability and retention
- FITC, fluorescein isothiocyanate
- GRAS, Generally Recognized as Safe
- HEC, hydroxyethylcellulose
- HFBII, class II hydrophobin
- HP-PTX/NC, hyaluronic acid-paclitaxel/nanocrystal
- HPC, hydroxypropyl cellulose
- HPH, high-pressure homogenization
- HPMC, hydroxypropyl methylcellulose
- IM, intramuscular
- IP, intraperitoneal
- IV, intravenous
- IVIVC, in vivo–in vitro correlation
- In vivo fate
- LD50, median lethal dose (50%)
- MDR, multidrug resistance effect
- NCE, new chemical entities
- Nanosuspension
- P-gp, permeation glycoprotein
- PEG, polyethylene glycol
- PTX, paclitaxel
- PVA, polyvinyl alcohol
- Parenteral
- QbD, quality by design
- SC, subcutaneous
- SEDS, solution enhanced dispersion by supercritical fluids
- SEM, scanning electron microscopy
- SFL, spray freezing into liquids
- Scalability
- Solidification
- Stabilizer
- TBA, tert-butanol
- TEM, transmission electron microscopy
- US FDA, United States Food and Drug Administration
- Vitamin E TPGS, d-α-tocopheryl polyethylene glycol 1000 succinate
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Affiliation(s)
| | | | | | - Manju Misra
- Department of Pharmaceutics, National Institute of Pharmaceutical Education and Research (NIPER), Ahmedabad, Gujarat 380054, India
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Dermal flurbiprofen nanosuspensions: Optimization with design of experiment approach and in vitro evaluation. Eur J Pharm Sci 2018; 122:254-263. [DOI: 10.1016/j.ejps.2018.07.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 07/03/2018] [Accepted: 07/03/2018] [Indexed: 11/24/2022]
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Melzig S, Finke JH, Schilde C, Kwade A. Formation of long-term stable amorphous ibuprofen nanoparticles via antisolvent melt precipitation (AMP). Eur J Pharm Biopharm 2018; 131:224-231. [PMID: 30149060 DOI: 10.1016/j.ejpb.2018.08.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 08/24/2018] [Accepted: 08/24/2018] [Indexed: 02/06/2023]
Abstract
Antisolvent precipitation of poorly water-soluble drugs is a promising formulation technique to synthesize amorphous nanoparticles. The dissolution behavior of these nanoparticles is improved because of the high specific surface area and the amorphous state, leading to an enhanced bioavailability of the drug molecules. Nevertheless, stabilization of precipitated drug nanoparticles against agglomeration and recrystallization, which constitutes a key issue for further processing steps, has turned out to be a major challenge. For that reason, the present study presents a synthesis method to produce long-term stable amorphous ibuprofen nanoparticles via antisolvent precipitation. To reach this goal, a new precipitation method was developed: antisolvent melt precipitation (AMP). Formulation strategies (e.g. varying fraction of stabilizer) as well as process parameters (e.g. temperature) were under study to estimate their influence on particle size, size distribution, crystallinity, morphology and stability of synthesized drug nanoparticles.
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Affiliation(s)
- S Melzig
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany; PVZ- Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Germany.
| | - J H Finke
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany; PVZ- Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Germany
| | - C Schilde
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany; PVZ- Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Germany
| | - A Kwade
- Institute for Particle Technology, Technische Universität Braunschweig, Volkmaroder Str. 5, 38104 Braunschweig, Germany; PVZ- Center of Pharmaceutical Engineering, Technische Universität Braunschweig, Germany
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32
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Zhang Y, Fei S, Yu M, Guo Y, He H, Zhang Y, Yin T, Xu H, Tang X. Injectable sustained release PLA microparticles prepared by solvent evaporation-media milling technology. Drug Dev Ind Pharm 2018; 44:1591-1597. [PMID: 29847181 DOI: 10.1080/03639045.2018.1483382] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
The objective of this study was to develop agomelatine (AGM) intramuscular sustained release PLA microparticles by using solvent evaporation combined with wet milling technology. The final preparation had a regular and homogeneous particle size of approximately 35 µm, as measured by laser diffraction particle size analysis and scanning electron microscopy (SEM). The drug was confirmed to be within the carrier in an amorphous state through differential scanning calorimetry (DSC) and power X-ray diffraction (PXRD) experiments. Additionally, Fourier transform infrared spectroscopy (FT-IR) analysis was applied to confirm that there was hydrogen bonding between the drug and polymer at the molecular level. In vitro release experiments indicated that the drug could achieve long-term sustained release over the period of one month, with only a 3.07% burst release, due to the involvement of the polymer and removal of drug adsorbed on the surface during the wet grinding process. The dominant release mechanism was considered to be diffusion of the drugs in the initial period. Following this, with the hydrolysis of PLA to form a colloidal viscous layer, drug release is due to the combined effect of diffusion and erosion of the polymer matrix. Additionally, drug release behavior is closely related to the degradation mechanism of the polymer carrier. The results suggest that AGM could be developed as a potential delivery system for long-acting intramuscular administration with extensive application prospects.
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Affiliation(s)
- Yan Zhang
- a Department of Pharmaceutics , School of Pharmacy , Shenyang , China
| | - Siyang Fei
- a Department of Pharmaceutics , School of Pharmacy , Shenyang , China
| | - Meiling Yu
- a Department of Pharmaceutics , School of Pharmacy , Shenyang , China
| | - Yuting Guo
- a Department of Pharmaceutics , School of Pharmacy , Shenyang , China
| | - Haibing He
- a Department of Pharmaceutics , School of Pharmacy , Shenyang , China
| | - Yu Zhang
- a Department of Pharmaceutics , School of Pharmacy , Shenyang , China
| | - Tian Yin
- b Department of Functional Food and Wine , Shenyang Pharmaceutical University , Shenyang , China
| | - Hui Xu
- a Department of Pharmaceutics , School of Pharmacy , Shenyang , China
| | - Xing Tang
- a Department of Pharmaceutics , School of Pharmacy , Shenyang , China
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33
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Cappelletto E, Firrito C, Pizzato M, Rebuffi L, Scardi P. Mechanical activation of Efavirenz: the effects on the dissolution and inhibitory behavior. Pharm Dev Technol 2018; 23:1128-1135. [PMID: 29688125 DOI: 10.1080/10837450.2018.1469148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A poorly water-soluble drug (Efavirenz) was mechanically activated by ball-milling. The effect of the mechanical activation on the dissolution behavior and bioavailability was investigated revealing possible correlations with the grinding action, in terms of crystallinity, particle size and morphology.With proper selection of the grinding parameters the dissolution kinetics can be controlled, both in terms of dissolution velocity and as amount of dissolved drug. In vitro biological tests show that milling does not impair the ability of Efavirenz to inhibit HIV-1 infection (p value >0.05); the IC50 values of ground Efavirenz is indeed lower than values for the pristine micronized powder.
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Affiliation(s)
- E Cappelletto
- a Department of Civil, Environmental and Mechanical Engineering , University of Trento , Trento , Italy
| | - C Firrito
- b Centre for Integrative Biology, University of Trento , Trento , Italy
| | - M Pizzato
- b Centre for Integrative Biology, University of Trento , Trento , Italy
| | - L Rebuffi
- c Elettra-Sincrotrone Trieste , Trieste , Basovizza , Italy
| | - P Scardi
- a Department of Civil, Environmental and Mechanical Engineering , University of Trento , Trento , Italy
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34
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Pharmaceutical nanocrystals: production by wet milling and applications. Drug Discov Today 2018; 23:534-547. [DOI: 10.1016/j.drudis.2018.01.016] [Citation(s) in RCA: 147] [Impact Index Per Article: 24.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Revised: 11/19/2017] [Accepted: 01/04/2018] [Indexed: 12/17/2022]
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35
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Pan C, Cao X, Tang L, Zhang Y, He H, Yin T, Piao H, Tang X. Phospholipid Complex of ICA and ICA II Prepared by Wet Media Milling for Improving Bioavailability. EUR J LIPID SCI TECH 2018. [DOI: 10.1002/ejlt.201700317] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Caiyun Pan
- School of Pharmacy, Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Xiuxiu Cao
- School of Pharmacy, Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Lihua Tang
- School of Pharmacy, Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Yu Zhang
- School of Pharmacy, Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Haibing He
- School of Pharmacy, Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Tian Yin
- School of Pharmacy, Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Hongyu Piao
- School of Pharmacy, Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
| | - Xing Tang
- School of Pharmacy, Shenyang Pharmaceutical University; 103 Wenhua Road Shenyang 110016 China
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36
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Optimization of formulation and process parameters for the production of carvedilol nanosuspension by wet media milling. Int J Pharm 2018; 540:150-161. [PMID: 29438724 DOI: 10.1016/j.ijpharm.2018.02.011] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 01/22/2018] [Accepted: 02/09/2018] [Indexed: 11/24/2022]
Abstract
The aim of this study is to develop nanosuspension of carvedilol (CRV) by wet media milling. Concentration of polymeric stabilizer (hydroxypropyl cellulose-HPC-SL), milling speed and size of milling beads were identified as critical formulation and process parameters and their effect on CRV particle size after 60 min of milling was assessed using a Box-Behnken experimental design. Optimized nanosuspension was solidified using spray drying and freeze drying and subjected to solid state characterization. Low stabilizer concentration (10%), low milling speed (300 rpm) with small milling beads (0.1 mm) were found as optimal milling conditions. Crystal lattice simulation identified potential slip plane within CRV crystals, where fractures are the most likely to occur. Calculated mechanical properties of CRV crystal indicates that low energy stress is sufficient to initiate fracture, if applied in the correct direction, explaining the advantage of using smaller milling beads. Only spray dried nanosuspension redispersed to original nanoparticles, while particle agglomeration during freeze drying prevented sample redispersion. Wet milling and spray drying did not induce polymorphic transition of CRV, while there is indication of polymorphic transition during freeze drying, making spray drying as the preferred solidification method.
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37
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Spray drying of amorphous ibuprofen nanoparticles for the production of granules with enhanced drug release. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2017.07.028] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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38
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Geng T, Banerjee P, Lu Z, Zoghbi A, Li T, Wang B. Comparative study on stabilizing ability of food protein, non-ionic surfactant and anionic surfactant on BCS type II drug carvedilol loaded nanosuspension: Physicochemical and pharmacokinetic investigation. Eur J Pharm Sci 2017; 109:200-208. [PMID: 28811130 DOI: 10.1016/j.ejps.2017.08.005] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 08/10/2017] [Accepted: 08/11/2017] [Indexed: 11/16/2022]
Abstract
Carvedilol (CAR) in its pure state has low aqueous solubility and extremely poor bioavailability which largely limit its clinical application. The aim of the study is to improve the dissolution rate and the bioavailability of CAR via preparing nanosuspensions with different stabilizers. Antisolvent precipitation-ultrasonication technique was used here. Attempts have been made to use food protein- Whey protein isolate (WPI) as a stabilizer in CAR loaded nanosuspension and also to compare its stabilizing potential with conventional nanosuspension stabilizers such as non-ionic linear copolymer-poloxamer 188 (PLX188) and anionic surfactant-sodium dodecyl sulfate (SDS). Optimized nanosuspensions showed narrow size distribution with particle size ranging from 275 to 640nm. Amorphous state of CAR nanocrystals which also improved the solubility by 16-, 25-, 55-fold accordingly was confirmed by powder X-ray diffraction (PXRD) and differential scanning calorimetry (DSC). From scanning electron microscopy (SEM), flaky shape of PLX188 and SDS nanosuspensions could be revealed but WPI nanosuspension was sphere-shaped. Up to 70% dissolution of loaded drug was observed within 15min in phosphate buffer (pH6.8). A pharmacokinetic study in rats indicated that both Cmax and AUC0-36 values of nanosuspensions were estimated to be 2-fold higher than those of reference, suggesting a significant increase in CAR bioavailability.
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Affiliation(s)
- Tianjiao Geng
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Parikshit Banerjee
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Zhangdi Lu
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Abdelmoumin Zoghbi
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Tiantian Li
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China
| | - Bo Wang
- Department of Pharmaceutics, School of Pharmacy, China Pharmaceutical University, Nanjing, Jiangsu 211198, PR China.
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39
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Steiner D, Finke JH, Kwade A. Redispersion of Nanoparticle-Loaded Orodispersible Films: Preservation of Particle Fineness. CHEM-ING-TECH 2017. [DOI: 10.1002/cite.201600139] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Denise Steiner
- Technische Universität Braunschweig; Institute for Particle Technology; Volkmaroder Straße 5 38104 Braunschweig Germany
- Technische Universität Braunschweig; PVZ - Center of Pharmaceutical Engineering; Franz-Liszt-Straße 35a 38106 Braunschweig Germany
| | - Jan Henrik Finke
- Technische Universität Braunschweig; Institute for Particle Technology; Volkmaroder Straße 5 38104 Braunschweig Germany
- Technische Universität Braunschweig; PVZ - Center of Pharmaceutical Engineering; Franz-Liszt-Straße 35a 38106 Braunschweig Germany
| | - Arno Kwade
- Technische Universität Braunschweig; Institute for Particle Technology; Volkmaroder Straße 5 38104 Braunschweig Germany
- Technische Universität Braunschweig; PVZ - Center of Pharmaceutical Engineering; Franz-Liszt-Straße 35a 38106 Braunschweig Germany
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40
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Konnerth C, Braig V, Ito A, Schmidt J, Lee G, Peukert W. Formation of Mefenamic Acid Nanocrystals with Improved Dissolution Characteristics. CHEM-ING-TECH 2017. [DOI: 10.1002/cite.201600190] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Affiliation(s)
- Christoph Konnerth
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Institute of Particle Technology; Cauerstraße 4 91058 Erlangen Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Cluster of Excellence - Engineering of Advanced Material (EAM); Nägelsbachstraße 49b 91058 Erlangen Germany
| | - Veronika Braig
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Division of Pharmaceutics, Cauerstraße 4; 91058 Erlangen Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Cluster of Excellence - Engineering of Advanced Material (EAM); Nägelsbachstraße 49b 91058 Erlangen Germany
| | - Atsutoshi Ito
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Institute of Particle Technology; Cauerstraße 4 91058 Erlangen Germany
| | - Jochen Schmidt
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Institute of Particle Technology; Cauerstraße 4 91058 Erlangen Germany
| | - Geoffrey Lee
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Division of Pharmaceutics, Cauerstraße 4; 91058 Erlangen Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Cluster of Excellence - Engineering of Advanced Material (EAM); Nägelsbachstraße 49b 91058 Erlangen Germany
| | - Wolfgang Peukert
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Institute of Particle Technology; Cauerstraße 4 91058 Erlangen Germany
- Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU); Cluster of Excellence - Engineering of Advanced Material (EAM); Nägelsbachstraße 49b 91058 Erlangen Germany
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41
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Grinding media wear induced agglomeration of electrosteric stabilized particles. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.02.071] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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42
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Göke K, Lorenz T, Repanas A, Schneider F, Steiner D, Baumann K, Bunjes H, Dietzel A, Finke JH, Glasmacher B, Kwade A. Novel strategies for the formulation and processing of poorly water-soluble drugs. Eur J Pharm Biopharm 2017; 126:40-56. [PMID: 28532676 DOI: 10.1016/j.ejpb.2017.05.008] [Citation(s) in RCA: 85] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 05/10/2017] [Accepted: 05/15/2017] [Indexed: 12/31/2022]
Abstract
Low aqueous solubility of active pharmaceutical ingredients presents a serious challenge in the development process of new drug products. This article provides an overview on some of the current approaches for the formulation of poorly water-soluble drugs with a special focus on strategies pursued at the Center of Pharmaceutical Engineering of the TU Braunschweig. These comprise formulation in lipid-based colloidal drug delivery systems and experimental as well as computational approaches towards the efficient identification of the most suitable carrier systems. For less lipophilic substances the preparation of drug nanoparticles by milling and precipitation is investigated for instance by means of microsystem-based manufacturing techniques and with special regard to the preparation of individualized dosage forms. Another option to overcome issues with poor drug solubility is the incorporation into nanospun fibers.
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Affiliation(s)
- Katrin Göke
- Technische Universität Braunschweig, Institut für Pharmazeutische Technologie, Mendelssohnstr. 1, 38106 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Thomas Lorenz
- Technische Universität Braunschweig, Institut für Mikrotechnik, Alte Salzdahlumer Str. 203, 38124 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Alexandros Repanas
- Leibniz Universität Hannover, Institut für Mehrphasenprozesse, Callinstr. 36, 30167 Hannover, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Frederic Schneider
- Technische Universität Braunschweig, Institut für Medizinische und Pharmazeutische Chemie, Beethovenstr. 55, 38106 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Denise Steiner
- Technische Universität Braunschweig, Institut für Partikeltechnik, Volkmaroder Str. 5, 38104 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Knut Baumann
- Technische Universität Braunschweig, Institut für Medizinische und Pharmazeutische Chemie, Beethovenstr. 55, 38106 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Heike Bunjes
- Technische Universität Braunschweig, Institut für Pharmazeutische Technologie, Mendelssohnstr. 1, 38106 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Andreas Dietzel
- Technische Universität Braunschweig, Institut für Mikrotechnik, Alte Salzdahlumer Str. 203, 38124 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Jan H Finke
- Technische Universität Braunschweig, Institut für Partikeltechnik, Volkmaroder Str. 5, 38104 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Birgit Glasmacher
- Leibniz Universität Hannover, Institut für Mehrphasenprozesse, Callinstr. 36, 30167 Hannover, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
| | - Arno Kwade
- Technische Universität Braunschweig, Institut für Partikeltechnik, Volkmaroder Str. 5, 38104 Braunschweig, Germany; Technische Universität Braunschweig, Zentrum für Pharmaverfahrenstechnik (PVZ), Franz-Liszt-Str. 35a, 38106 Braunschweig, Germany.
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Li M, Alvarez P, Bilgili E. A microhydrodynamic rationale for selection of bead size in preparation of drug nanosuspensions via wet stirred media milling. Int J Pharm 2017; 524:178-192. [DOI: 10.1016/j.ijpharm.2017.04.001] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 03/04/2017] [Accepted: 04/02/2017] [Indexed: 11/25/2022]
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44
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Flach F, Konnerth C, Peppersack C, Schmidt J, Damm C, Breitung-Faes S, Peukert W, Kwade A. Impact of formulation and operating parameters on particle size and grinding media wear in wet media milling of organic compounds – A case study for pyrene. ADV POWDER TECHNOL 2016. [DOI: 10.1016/j.apt.2016.09.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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45
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Steiner D, Finke JH, Breitung-Faes S, Kwade A. Breakage, temperature dependency and contamination of Lactose during ball milling in ethanol. ADV POWDER TECHNOL 2016. [DOI: 10.1016/j.apt.2016.05.034] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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46
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Konnerth C, Flach F, Breitung-Faes S, Damm C, Schmidt J, Kwade A, Peukert W. Impact of stressing conditions and polymer–surfactant interactions on product characteristics of organic nanoparticles produced by media milling. POWDER TECHNOL 2016. [DOI: 10.1016/j.powtec.2016.02.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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47
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Nanomilling of Drugs for Bioavailability Enhancement: A Holistic Formulation-Process Perspective. Pharmaceutics 2016; 8:pharmaceutics8020017. [PMID: 27213434 PMCID: PMC4932480 DOI: 10.3390/pharmaceutics8020017] [Citation(s) in RCA: 113] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Revised: 05/13/2016] [Accepted: 05/13/2016] [Indexed: 11/17/2022] Open
Abstract
Preparation of drug nanoparticles via wet media milling (nanomilling) is a very versatile drug delivery platform and is suitable for oral, injectable, inhalable, and buccal applications. Wet media milling followed by various drying processes has become a well-established and proven formulation approach especially for bioavailability enhancement of poorly water-soluble drugs. It has several advantages such as organic solvent-free processing, tunable and relatively high drug loading, and applicability to a multitude of poorly water-soluble drugs. Although the physical stability of the wet-milled suspensions (nanosuspensions) has attracted a lot of attention, fundamental understanding of the process has been lacking until recently. The objective of this review paper is to present fundamental insights from available published literature while summarizing the recent advances and highlighting the gap areas that have not received adequate attention. First, stabilization by conventionally used polymers/surfactants and novel stabilizers is reviewed. Then, a fundamental understanding of the process parameters, with a focus on wet stirred media milling, is revealed based on microhydrodynamic models. This review is expected to bring a holistic formulation-process perspective to the nanomilling process and pave the way for robust process development scale-up. Finally, challenges are indicated with a view to shedding light on future opportunities.
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48
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Effect of polymer species and concentration on the production of mefenamic acid nanoparticles by media milling. Eur J Pharm Biopharm 2016; 98:98-107. [DOI: 10.1016/j.ejpb.2015.11.011] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2015] [Revised: 11/12/2015] [Accepted: 11/14/2015] [Indexed: 11/18/2022]
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