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Minootan Z, Wang H, Connaughton P, Lachacz K, Carrigy N, Ordoubadi M, Lechuga-Ballesteros D, Martin AR, Vehring R. On the Feasibility of Rugose Lipid Microparticles in Pressurized Metered Dose Inhalers with Established and New Propellants. AAPS PharmSciTech 2024; 25:82. [PMID: 38600288 DOI: 10.1208/s12249-024-02776-z] [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: 10/05/2023] [Accepted: 02/21/2024] [Indexed: 04/12/2024] Open
Abstract
Pressurized metered dose inhalers (pMDIs) require optimized formulations to provide stable, consistent lung delivery. This study investigates the feasibility of novel rugose lipid particles (RLPs) as potential drug carriers in pMDI formulations. The physical stability of RLPs was assessed in three different propellants: the established HFA-134a and HFA-227ea and the new low global-warming-potential (GWP) propellant HFO-1234ze. A feedstock containing DSPC and calcium chloride was prepared without pore forming agent to spray dry two RLP batches at inlet temperatures of 55 °C (RLP55) and 75 °C (RLP75). RLPs performance in pMDI formulations was compared to two reference samples that exhibit significantly different performance when suspended in propellants: well-established engineered porous particles and particles containing 80% trehalose and 20% leucine (80T20L). An accelerated stability study at 40 °C and relative humidity of 7% ± 5% was conducted over 3 months. At different time points, a shadowgraphic imaging technique was used to evaluate the colloidal stability of particles in pMDIs. Field emission electron microscopy with energy dispersive X-ray spectroscopy was used to evaluate the morphology and elemental composition of particles extracted from the pMDIs. After 2 weeks, all 80T20L formulations rapidly aggregated upon agitation and exhibited significantly inferior colloidal stability compared to the other samples. In comparison, both the RLP55 and RLP75 formulations, regardless of the propellant used, retained their rugose structure and demonstrated excellent suspension stability comparable with the engineered porous particles. The studied RLPs demonstrate great potential for use in pMDI formulations with HFA propellants and the next-generation low-GWP propellant HFO-1234ze.
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Affiliation(s)
- Zahra Minootan
- Donadeo Innovation Centre for Engineering (DICE), 9211 116 Street NW, Edmonton, Alberta, T6G1H9, Canada
| | - Hui Wang
- Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, T6G1H9, Canada.
| | - Patrick Connaughton
- Inhalation Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Durham, North Carolina, USA
| | - Kellisa Lachacz
- Inhalation Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Durham, North Carolina, USA
| | - Nicholas Carrigy
- Inhalation Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Durham, North Carolina, USA
| | - Mani Ordoubadi
- Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, T6G1H9, Canada
| | - David Lechuga-Ballesteros
- Inhalation Product Development, Pharmaceutical Technology & Development, Operations, AstraZeneca, Durham, North Carolina, USA
| | - Andrew R Martin
- Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, T6G1H9, Canada
| | - Reinhard Vehring
- Department of Mechanical Engineering, University of Alberta, Edmonton, Alberta, T6G1H9, Canada
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2
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Wu HT, Chuang YH, Lin HC, Hu TC, Tu YJ, Chien LJ. Immediate Release Formulation of Inhaled Beclomethasone Dipropionate-Hydroxypropyl-Beta-Cyclodextrin Composite Particles Produced Using Supercritical Assisted Atomization. Polymers (Basel) 2022; 14:2114. [PMID: 35631996 PMCID: PMC9144350 DOI: 10.3390/polym14102114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2022] [Revised: 05/15/2022] [Accepted: 05/17/2022] [Indexed: 11/16/2022] Open
Abstract
In this study, the enhanced solubilization performance of a poorly soluble drug, beclomethasone dipropionate (BDP), was investigated using hydroxypropyl-β-cyclodextrin (HP-β-CD) and ethanol. The enhanced solubility of the drug was determined using the phase solubility method and correlated as a function of both HP-β-CD and ethanol concentrations. The effective progress of drug solubility originated from the formation of cyclodextrin and BDP inclusion complexes and increase in the lipophilicity of the medium, by aqueous ethanol, for hydrophobic BDP. BDP and HP-β-CD composite particles were produced using supercritical assisted atomization (SAA) with carbon dioxide as the spraying medium, 54.2% (w/w) aqueous ethanol as the solvent, and an optimal amount of the dispersion enhancer leucine. The effect of the mass ratio of HP-β-CD to BDP (Z) on the in vitro aerosolization and in vitro dissolution performance of BDP-HP-β-CD composite particles was evaluated. The aerosolization performance showed that the fine particles fraction (FPF) of the composite particles increased with increasing mass ratio. The water-soluble excipient (HP-β-CD) effectively enhance the dissolution rate of BDP from composite particles. This study suggests that BDP-HP-β-CD composite particles produced using SAA can be employed in immediate-release drug formulations for pulmonary delivery.
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Affiliation(s)
- Hsien-Tsung Wu
- Department of Chemical Engineering, Ming Chi University of Technology, 84 Gungjuan Rd., Taishan Dist., New Taipei City 24301, Taiwan; (Y.-H.C.); (H.-C.L.); (T.-C.H.); (Y.-J.T.); (L.-J.C.)
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3
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Characterization and Aerosolization Performance of HydroxyPropyl-Beta-Cyclodextrin Particles Produced Using Supercritical Assisted Atomization. Polymers (Basel) 2021; 13:polym13142260. [PMID: 34301017 PMCID: PMC8309227 DOI: 10.3390/polym13142260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2021] [Revised: 06/30/2021] [Accepted: 07/07/2021] [Indexed: 11/17/2022] Open
Abstract
In this study, hydroxypropyl-beta-cyclodextrin (HP-β-CD) particles were produced using supercritical assisted atomization (SAA) with carbon dioxide as the spraying medium or co-solute and aqueous ethanol solution as the solvent. The effects of several key factors on the morphology and size of the HP-β-CD particles were investigated. These factors included the solvent effect, temperatures of the precipitator and saturator, concentration of the HP-β-CD solution, and flow rate ratio of carbon dioxide to the HP-β-CD solution. The conducive conditions for producing fine spherical particles were 54.2% (w/w) aqueous ethanol as the solvent; precipitator and saturator temperatures of 373.2 K and 353.2 K, respectively; a flow rate ratio of carbon dioxide to HP-β-CD solution of 1.8; and low concentrations of HP-β-CD solution. The addition of leucine (LEU) enhanced the aerosol performance of the HP-β-CD particles, and the fine particle fraction (FPF) of the HP-β-CD particles with the addition of 13.0 mass% LEU was 1.8 times higher than that of the HP-β-CD particles without LEU. This study shows that LEU can act as a dispersion enhancer and that HP-β-CD particles produced using SAA can be used as pulmonary drug carriers.
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4
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Yaqoubi S, Chan HK, Nokhodchi A, Dastmalchi S, Alizadeh AA, Barzegar-Jalali M, Adibkia K, Hamishehkar H. A quantitative approach to predicting lung deposition profiles of pharmaceutical powder aerosols. Int J Pharm 2021; 602:120568. [PMID: 33812969 DOI: 10.1016/j.ijpharm.2021.120568] [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] [Received: 02/19/2021] [Revised: 03/19/2021] [Accepted: 03/30/2021] [Indexed: 12/11/2022]
Abstract
Dry powder inhalers (DPI) are widely used systems for pulmonary delivery of therapeutics. The inhalation performance of DPIs is influenced by formulation features, inhaler device and inhalation pattern. The current review presents the affecting factors with great focus on powder characteristics which include particle size, shape, surface, density, hygroscopicity and crystallinity. The properties of a formulation are greatly influenced by a number of physicochemical factors of drug and added excipients. Since available particle engineering techniques result in particles with a set of modifications, it is difficult to distinguish the effect of an individual feature on powder deposition behavior. This necessitates developing a predictive model capable of describing all influential factors on dry powder inhaler delivery. Therefore, in the current study, a model was constructed to correlate the inhaler device properties, inhalation flow rate, particle characteristics and drug/excipient physicochemical properties with the resultant fine particle fraction. The r2 value of established correlation was 0.74 indicating 86% variability in FPF values is explained by the model with the mean absolute errors of 0.22 for the predicted values. The authors believe that this model is capable of predicting the lung deposition pattern of a formulation with an acceptable precision when the type of inhaler device, inhalation flow rate, physicochemical behavior of active and inactive ingredients and the particle characteristics of DPI formulations are considered.
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Affiliation(s)
- Shadi Yaqoubi
- Faculty of Pharmacy and Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hak-Kim Chan
- Advanced Drug Delivery Group, School of Pharmacy, Faculty of Medicine and Health, University of Sydney, Sydney, NSW, Australia
| | - Ali Nokhodchi
- Pharmaceutics Research Laboratory, School of Life Sciences, University of Sussex, Brighton, UK
| | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Akbar Alizadeh
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mohammad Barzegar-Jalali
- Pharmaceutical Analysis Research Center, and Department of Pharmaceutics, Faculty of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Khosro Adibkia
- Research Center for Pharmaceutical Nanotechnology, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Hamed Hamishehkar
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
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5
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Effects of a novel roflumilast and formoterol fumarate dry powder inhaler formulation in experimental allergic asthma. Int J Pharm 2020; 588:119771. [PMID: 32805379 DOI: 10.1016/j.ijpharm.2020.119771] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2020] [Revised: 08/10/2020] [Accepted: 08/11/2020] [Indexed: 12/14/2022]
Abstract
In this study we aimed to develop a roflumilast (R) and formoterol fumarate (F) dry powder inhaler formulation (DPI) incorporating HPβCD by spray drying and evaluated if it attenuates the inflammatory process and improves lung function in a murine model of ovalbumin induced allergic asthma. The DPI was characterized by powder X-ray diffraction, thermal analysis, scanning electron microscopy, particle size, density, specific surface area and dynamic vapor sorption analyses. In vitro deposition studies were performed using a NGI, while transepithelial permeability and in vivo effects on lung mechanics and inflammation in a model of allergic asthma were also assessed. The R:F formulation was amorphous with high glass transition temperatures, comprised of wrinkled particles, had low bulk and tapped densities, high surface area, suitable particle size for pulmonary delivery and exhibited no recrystallization even at high relative humidities. MMAD were statistically similar of 4.22 ± 0.19 and 4.32 ± 0.13 µm for F and R, respectively. Fine particle fractions (<5 µm) were of more than 50% of the emitted dose. The R:F formulation led to reduced eosinophil infiltration and airway collagen fiber content, yielding decreased airway hyperresponsiveness. In the current asthma model, the R:F formulation combination decreased inflammation and remodeling, thus improving lung mechanics.
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6
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Development of inhaled formulation of modified clofazimine as an alternative to treatment of tuberculosis. J Drug Deliv Sci Technol 2020. [DOI: 10.1016/j.jddst.2020.101805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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7
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Zhao Z, Zhang X, Cui Y, Huang Y, Huang Z, Wang G, Liang R, Pan X, Tao L, Wu C. Hydroxypropyl-β-cyclodextrin as anti-hygroscopicity agent inamorphous lactose carriers for dry powder inhalers. POWDER TECHNOL 2019. [DOI: 10.1016/j.powtec.2018.09.098] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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8
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Mah PT, O'Connell P, Focaroli S, Lundy R, O'Mahony TF, Hastedt JE, Gitlin I, Oscarson S, Fahy JV, Healy AM. The use of hydrophobic amino acids in protecting spray dried trehalose formulations against moisture-induced changes. Eur J Pharm Biopharm 2019; 144:139-153. [PMID: 31536784 DOI: 10.1016/j.ejpb.2019.09.014] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/13/2019] [Accepted: 09/15/2019] [Indexed: 11/18/2022]
Abstract
Trehalose is commonly used as a protein stabilizer in spray dried protein formulations delivered via the pulmonary route. Spray dried trehalose formulations are highly hygroscopic, which makes them prone to deliquescence and recrystallization when exposed to moisture, leading to impairment in aerosolization performance. The main aim of this study was to investigate and compare the effect of hydrophobic amino acids (i.e. L-leucine and L-isoleucine) in enhancing aerosolization performance and in mitigating moisture-induced changes in spray dried trehalose formulations. Trehalose was spray dried with 20-60% w/w of amino acid (i.e. L-leucine or L-isoleucine). The spray dried formulations were stored at 25 °C/50% RH for 28 days. Solid state characterization and in vitro aerosolization performance studies were performed on the spray dried formulations before and after storage. The addition of 20-60% w/w of amino acid (i.e. L-leucine or L-isoleucine) improved the emitted fractions of spray dried trehalose formulations from a dry powder inhaler. However, ≥ 40% w/w of L-leucine/L-isoleucine was needed to prevent recrystallization of trehalose in the formulations when exposed to 25 °C/50% RH for 28 days. X-ray photoelectron spectroscopy (XPS) demonstrated that samples with 40-60% w/w L-isoleucine had more amino acid on the surfaces of the particles compared to their L-leucine counterparts. This may explain the greater ability of the L-isoleucine (40-60% w/w) samples to cope with elevated humidity compared to L-leucine samples of the same concentrations, as observed in the dynamic vapour sorption (DVS) studies. In conclusion, this study demonstrated that both L-leucine and L-isoleucine were effective in enhancing aerosolization performance and mitigating moisture-induced reduction in aerosolization performance in spray dried trehalose formulations. L-isoleucine proved to be superior to L-leucine in terms of its moisture protectant effect when incorporated at the same concentration in the formulations.
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Affiliation(s)
- Pei T Mah
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Ireland
| | - Peter O'Connell
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Ireland
| | - Stefano Focaroli
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Ireland
| | - Ross Lundy
- Advanced Materials and BioEngineering Research (AMBER), Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Ireland
| | - Tom F O'Mahony
- Advanced Materials and BioEngineering Research (AMBER), Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), Trinity College Dublin, Ireland
| | | | - Irina Gitlin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine and Cardiovascular Research Institute, University of California San Francisco, CA, United States
| | - Stefan Oscarson
- Centre for Synthesis and Chemical Biology, University College Dublin, Ireland
| | - John V Fahy
- Division of Pulmonary and Critical Care Medicine, Department of Medicine and Cardiovascular Research Institute, University of California San Francisco, CA, United States
| | - Anne Marie Healy
- School of Pharmacy and Pharmaceutical Sciences, Trinity College Dublin, Ireland; Synthesis and Solid State Pharmaceutical Centre (SSPC), Ireland.
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9
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Focaroli S, Mah PT, Hastedt JE, Gitlin I, Oscarson S, Fahy JV, Healy AM. A Design of Experiment (DoE) approach to optimise spray drying process conditions for the production of trehalose/leucine formulations with application in pulmonary delivery. Int J Pharm 2019; 562:228-240. [PMID: 30849470 DOI: 10.1016/j.ijpharm.2019.03.004] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2018] [Revised: 03/01/2019] [Accepted: 03/02/2019] [Indexed: 11/26/2022]
Abstract
The present study evaluates the effect of L-leucine concentration and operating parameters of a laboratory spray dryer on characteristics of trehalose dry powders, with the goal of optimizing production of these powders for inhaled drug delivery. Trehalose/L-leucine mixtures were spray dried from aqueous solution using a laboratory spray dryer. A factorial design of experiment (DoE) was undertaken and process parameters adjusted were: inlet temperature, gas flow rate, feed solution flow rate (pump setting), aspiration setting and L-leucine concentration. Resulting powders were characterised in terms of particle size, yield, residual moisture content, and glass transition temperature. Particle size was mainly influenced by gas flow rate, whereas product yield and residual moisture content were found to be primarily affected by inlet temperature and spray solution feed rate respectively. Interactions between a number of different process parameters were elucidated, as were relationships between different responses. The leucine mass ratio influenced the physical stability of powders against environmental humidity, and a high leucine concentration (30% w/w) protected amorphous trehalose from moisture induced crystallization. High weight ratio of leucine in the formulation, however, negatively impacted the aerosol performance. Thus, in terms of L-leucine inclusion in a formulation designed for pulmonary delivery, a balance needs to be found between physical stability and deposition characteristics.
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Affiliation(s)
- S Focaroli
- School of Pharmacy and Pharmaceutical Sciences, Panoz Insitute, Trinity College Dublin, Dublin 2, Ireland
| | - P T Mah
- School of Pharmacy and Pharmaceutical Sciences, Panoz Insitute, Trinity College Dublin, Dublin 2, Ireland
| | - J E Hastedt
- JDP Pharma Consulting, LLC, PO Box 1127, San Carlos, CA, United States
| | - I Gitlin
- Division of Pulmonary and Critical Care Medicine, Department of Medicine and Cardiovascular Research Institute, Health Sciences East, UCSF, 513 Parnassus Avenue, San Francisco, CA, United States
| | - S Oscarson
- Centre for Synthesis and Chemical Biology, School of Chemistry and Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland
| | - J V Fahy
- Division of Pulmonary and Critical Care Medicine, Department of Medicine and Cardiovascular Research Institute, Health Sciences East, UCSF, 513 Parnassus Avenue, San Francisco, CA, United States
| | - A M Healy
- School of Pharmacy and Pharmaceutical Sciences, Panoz Insitute, Trinity College Dublin, Dublin 2, Ireland; Synthesis and Solid State Pharmaceutical Centre, Trinity College Dublin, Dublin 2, Ireland.
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Kadota K, Yanagawa Y, Tachikawa T, Deki Y, Uchiyama H, Shirakawa Y, Tozuka Y. Development of porous particles using dextran as an excipient for enhanced deep lung delivery of rifampicin. Int J Pharm 2019; 555:280-290. [DOI: 10.1016/j.ijpharm.2018.11.055] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2018] [Revised: 11/07/2018] [Accepted: 11/20/2018] [Indexed: 10/27/2022]
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11
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Cui Y, Zhang X, Wang W, Huang Z, Zhao Z, Wang G, Cai S, Jing H, Huang Y, Pan X, Wu C. Moisture-Resistant Co-Spray-Dried Netilmicin with l-Leucine as Dry Powder Inhalation for the Treatment of Respiratory Infections. Pharmaceutics 2018; 10:pharmaceutics10040252. [PMID: 30513738 PMCID: PMC6321429 DOI: 10.3390/pharmaceutics10040252] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Revised: 10/16/2018] [Accepted: 10/29/2018] [Indexed: 12/27/2022] Open
Abstract
Netilmicin (NTM) is one of the first-line drugs for lower respiratory tract infections (LRTI) therapy, but its nephrotoxicity and ototoxicity caused by intravenous injection restrict its clinical application. Dry powder inhalation (DPI) is a popular local drug delivery system that is introduced as a solution. Due to the nature of NTM hygroscopicity that hinders its direct use through DPI, in this study, L-leucine (LL) was added into NTM dry powder to reduce its moisture absorption rate and improve its aerosolization performance. NTM DPIs were prepared using spray-drying with different LL proportions. The particle size, density, morphology, crystallinity, water content, hygroscopicity, antibacterial activity, in vitro aerosolization performance, and stability of each formulation were characterized. NTM DPIs were suitable for inhalation and amorphous with a corrugated surface. The analysis indicated that the water content and hygroscopicity were decreased with the addition of LL, whilst the antibacterial activity of NTM was maintained. The optimal formulation ND₂ (NTM:LL = 30:1) showed high fine particle fraction values (85.14 ± 8.97%), which was 2.78-fold those of ND₀ (100% NTM). It was stable after storage at 40 ± 2 °C, 75 ± 5% relative humidity (RH). The additional LL in NTM DPI successfully reduced the hygroscopicity and improved the aerosolization performance. NTM DPIs were proved to be a feasible and desirable approach for the treatment of LRTI.
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Affiliation(s)
- Yingtong Cui
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Xuejuan Zhang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
- Institute for Biomedical and Pharmaceutical Sciences, Guangdong University of Technology, Guangzhou 510006, China.
| | - Wen Wang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Zhengwei Huang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Ziyu Zhao
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
- Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou 510080, China.
| | - Guanlin Wang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Shihao Cai
- School of Pharmaceutical Sciences, Wuhan University, Wuhan 430072, China.
| | - Hui Jing
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Ying Huang
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Xin Pan
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
| | - Chuanbin Wu
- School of Pharmaceutical Sciences, Sun Yat-Sen University, Guangzhou 510006, China.
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Suzuki ÉY, Amaro MI, de Almeida GS, Cabral LM, Healy AM, de Sousa VP. Development of a new formulation of roflumilast for pulmonary drug delivery to treat inflammatory lung conditions. Int J Pharm 2018; 550:89-99. [DOI: 10.1016/j.ijpharm.2018.08.035] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 08/16/2018] [Accepted: 08/17/2018] [Indexed: 11/25/2022]
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13
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Zhao Z, Huang Z, Zhang X, Huang Y, Cui Y, Ma C, Wang G, Freeman T, Lu XY, Pan X, Wu C. Low density, good flowability cyclodextrin-raffinose binary carrier for dry powder inhaler: anti-hygroscopicity and aerosolization performance enhancement. Expert Opin Drug Deliv 2018. [PMID: 29532682 DOI: 10.1080/17425247.2018.1450865] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
BACKGROUND The hygroscopicity of raffinose carrier for dry powder inhaler (DPI) was the main obstacle for its further application. Hygroscopicity-induced agglomeration would cause deterioration of aerosolization performance of raffinose, undermining the delivery efficiency. METHODS Cyclodextrin-raffinose binary carriers (CRBCs) were produced by spray-drying so as to surmount the above issue. Physicochemical attributes and formation mechanism of CRBCs were explored in detail. The flow property of CRBCs was examined by FT4 Powder Rheometer. Hygroscopicity of CRBCs was elucidated by dynamic vapor sorption study. Aerosolization performance was evaluated by in vitro deposition profile and in vivo pharmacokinetic profile of CRBC based DPI formulations. RESULTS The optimal formulation of CRBC (R4) was proven to possess anti-hygroscopicity and aerosolization performance enhancement properties. Concisely, the moisture uptake of R4 was c.a. 5% which was far lower than spray-dried raffinose (R0, c.a. 65%). R4 exhibited a high fine particle fraction value of 70.56 ± 0.61% and it was 3.75-fold against R0. The pulmonary and plasmatic bioavailability of R4 were significantly higher than R0 (p < 0.05). CONCLUSION CRBC with anti-hygroscopicity and aerosolization performance enhancement properties was a promising approach for pulmonary drug delivery, which could provide new possibilities to the application of hygroscopic carriers for DPI.
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Affiliation(s)
- Ziyu Zhao
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , P.R. China
| | - Zhengwei Huang
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , P.R. China
| | - Xuejuan Zhang
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , P.R. China.,b Institute for Biomedical and Pharmaceutical Sciences , Guangdong University of Technology , Guangzhou , P.R. China
| | - Ying Huang
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , P.R. China
| | - Yingtong Cui
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , P.R. China
| | - Cheng Ma
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , P.R. China
| | - Guanlin Wang
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , P.R. China
| | | | | | - Xin Pan
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , P.R. China
| | - Chuanbin Wu
- a School of Pharmaceutical Sciences , Sun Yat-Sen University , Guangzhou , P.R. China
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14
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Ho DK, Costa A, De Rossi C, de Souza Carvalho-Wodarz C, Loretz B, Lehr CM. Polysaccharide Submicrocarrier for Improved Pulmonary Delivery of Poorly Soluble Anti-infective Ciprofloxacin: Preparation, Characterization, and Influence of Size on Cellular Uptake. Mol Pharm 2018; 15:1081-1096. [PMID: 29425049 DOI: 10.1021/acs.molpharmaceut.7b00967] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The majority of the currently used and developed anti-infectives are poorly water-soluble molecules. The poor solubility might lead to limited bioavailability and pharmacological action of the drug. Novel pharmaceutical materials have thus been designed to solve those problems and improve drug delivery. In this study, we propose a facile method to produce submicrocarriers (sMCs) by electrostatic gelation of anionic ß-cyclodextrin (aß-CD) and chitosan. The average hydrodynamic size ranged from 400 to 900 nm by carefully adjusting polymer concentrations and N/C ratio. The distinct host-guest reaction of cyclodextrin derivative is considered as a good approach to enhance solubility, and prevent drug recrystallization, and thus was used to develop sMC to improve the controlled release profile of a poorly soluble and clinically relevant anti-infective ciprofloxacin. The optimal molar ratio of ciprofloxacin to aß-CD was found to be 1:1, which helped maximize encapsulation efficiency (∼90%) and loading capacity (∼9%) of ciprofloxacin loaded sMCs. Furthermore, to recommend the future application of the developed sMCs, the dependence of cell uptake on sMCs size (500, 700, and 900 nm) was investigated in vitro on dTHP-1 by both flow cytometry and confocal microscopy. The results demonstrate that, regardless of their size, an only comparatively small fraction of the sMCs were taken up by the macrophage-like cells, while most of the carriers were merely adsorbed to the cell surface after 2 h incubation. After continuing the incubation to reach 24 h, the majority of the sMCs were found intracellularly. However, the sMCs had been designed to release sufficient amount of drug within 24 h, and the subsequent phagocytosis of the carrier may be considered as an efficient pathway for its safe degradation and elimination. In summary, the developed sMC is a suitable system with promising perspectives recommended for pulmonary extracellular infection therapeutics.
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Affiliation(s)
- Duy-Khiet Ho
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University , D-66123 Saarbrücken , Germany.,Department of Pharmacy , Saarland University , D-66123 Saarbrücken , Germany
| | - Ana Costa
- I3S, Instituto de Investigação e Inovação em Saúde Universidade do Porto , 4200-135 Porto , Portugal.,Instituto Nacional de Engenharia Biomédica (INEB), Universidade do Porto , 4200-135 Porto , Portugal.,Instituto Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto , 4050-313 Porto , Portugal
| | - Chiara De Rossi
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University , D-66123 Saarbrücken , Germany
| | - Cristiane de Souza Carvalho-Wodarz
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University , D-66123 Saarbrücken , Germany
| | - Brigitta Loretz
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University , D-66123 Saarbrücken , Germany
| | - Claus-Michael Lehr
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Helmholtz Center for Infection Research (HZI), Saarland University , D-66123 Saarbrücken , Germany.,Department of Pharmacy , Saarland University , D-66123 Saarbrücken , Germany
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15
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Imagine the Superiority of Dry Powder Inhalers from Carrier Engineering. JOURNAL OF DRUG DELIVERY 2018; 2018:5635010. [PMID: 29568652 PMCID: PMC5820590 DOI: 10.1155/2018/5635010] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 12/06/2017] [Indexed: 01/14/2023]
Abstract
Inhalation therapy has strong history of more than 4000 years and it is well recognized around the globe within every culture. In early days, inhalation therapy was designed for treatment of local disorders such as asthma and other pulmonary diseases. Almost all inhalation products composed a simple formulation of a carrier, usually α-lactose monohydrate orderly mixed with micronized therapeutic agent. Most of these formulations lacked satisfactory pulmonary deposition and dispersion. Thus, various alternative carrier's molecules and powder processing techniques are increasingly investigated to achieve suitable aerodynamic performance. In view of this fact, more suitable and economic alternative carrier's molecules with advanced formulation strategies are discussed in the present review. Furthermore, major advances, challenges, and the future perspective are discussed.
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16
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Solid state characterization of two novel gums from Cedrela odorata and Enterolobium cyclocarpum. JOURNAL OF PHARMACEUTICAL INVESTIGATION 2017. [DOI: 10.1007/s40005-017-0343-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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17
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Kadota K, Senda A, Tagishi H, Ayorinde JO, Tozuka Y. Evaluation of highly branched cyclic dextrin in inhalable particles of combined antibiotics for the pulmonary delivery of anti-tuberculosis drugs. Int J Pharm 2017; 517:8-18. [DOI: 10.1016/j.ijpharm.2016.11.060] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2016] [Revised: 11/27/2016] [Accepted: 11/29/2016] [Indexed: 12/14/2022]
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18
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Jójárt-Laczkovich O, Katona G, Aigner Z, Szabó-Révész P. Investigation of recrystallization of amorphous trehalose through hot-humidity stage X-ray powder diffraction. Eur J Pharm Sci 2016; 95:145-151. [PMID: 27496047 DOI: 10.1016/j.ejps.2016.08.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2016] [Revised: 07/25/2016] [Accepted: 08/02/2016] [Indexed: 11/18/2022]
Abstract
The aim of this work was an investigation of the physical changes of the amorphous model material spray-dried trehalose through the use of various analytical techniques and to identify a suitable, rapid method able to quantify the changes. The crystallinity changes and recrystallization process of amorphous samples were investigated by hot-humidity stage X-ray powder diffractometry (HH-XRPD) with fresh samples, conventional X-ray powder diffractometry (XRPD) used stored samples and by differential scanning calorimetry (DSC). The data from the three methods were compared and the various forms of trehalose were analysed. HH-XRPD demonstrated that the recrystallization began at 40 and 60°C up to 45% RH and at 70°C up to 30% RH into dihydrate form. At 70°C up to 60% RH the anhydrous form of trehalose appeared too. Conventional XRPD results showed, that in the 28days stored samples the dihydrate form was detected at 40°C, 50% RH. Storage at 60°C, 40% RH resulted in the appearance of the anhydrous form and at 60°C, 50% RH both polymorphic forms were detected. By carrying out the DSC measurements at different temperatures the fraction of recrystallized trehalose dihydrate was detected. The recrystallization investigated by HH-XRPD and DSC followed Avrami kinetics, the calculated rate constants of isothermal crystallization (K) were same. Both HH-XRPD and conventional XRPD was suitable for the detection of the physical changes of the amorphous model material. DSC measurements showed similar results as HH-XRPD. Primarily HH-XRPD could be suggested for prediction, because the method is fast and every changes could be studied on one sample.
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Affiliation(s)
| | - Gábor Katona
- Department of Pharmaceutical Technology, University of Szeged, Szeged, Hungary; Richter Gedeon Plc., Gyömrői 19-21, H-1103 Budapest, Hungary
| | - Zoltán Aigner
- Department of Pharmaceutical Technology, University of Szeged, Szeged, Hungary
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19
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Asai A, Okuda T, Yamauchi T, Sugiura Y, Okamoto H. Safety Evaluation of Dry Powder Formulations by Direct Dispersion onto Air-Liquid Interface Cultured Cell Layer. Biol Pharm Bull 2016; 39:368-77. [PMID: 26754254 DOI: 10.1248/bpb.b15-00791] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Most safety evaluations of dry powder inhalers (DPIs) using cultured cells have been performed with dry powder formulations dissolved in a medium. However, this method is not considered to be suitable to evaluate the safety of inhaled dry powder formulations correctly since it cannot reflect the actual phenomenon on the respiratory epithelial surface. In this study, we established a novel in-vitro safety evaluation system suitable for DPIs by combining an air-liquid interface cultured cell layer and a device for dispersing dry powders, and evaluated the safety of candidate excipients of dry powders for inhalation. The safety of excipients (sugars, amino acids, cyclodextrins, and positive controls) in solutions was compared using submerged cell culture systems with a conventional 96-well plate and Transwell(®). The sensitivity of the cells grown in Transwell(®) was lower than that of those grown in the 96-well plate. Dry powders were prepared by spray-drying and we evaluated their safety with a novel in-vitro safety evaluation system using an air-liquid interface cultured cell layer. Dry powders decreased the cell viability with doses more than solutions. On the other hand, dissolving the dry powders attenuated their cytotoxicity. This suggested that the novel in-vitro safety evaluation system would be suitable to evaluate the safety of DPIs with high sensitivity.
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20
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Maniruzzaman M, Nair A, Renault M, Nandi U, Scoutaris N, Farnish R, Bradley MSA, Snowden MJ, Douroumis D. Continuous twin-screw granulation for enhancing the dissolution of poorly water soluble drug. Int J Pharm 2015; 496:52-62. [PMID: 26387621 DOI: 10.1016/j.ijpharm.2015.09.025] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2015] [Revised: 09/11/2015] [Accepted: 09/14/2015] [Indexed: 11/30/2022]
Abstract
The article describes the application of a twin-screw granulation process to enhance the dissolution rate of the poorly water soluble drug, ibuprofen (IBU). A quality-by-design (QbD) approach was used to manufacture IBU loaded granules via hot-melt extrusion (HME) processing. For the purpose of the study, a design of experiment (DoE) was implemented to assess the effect of the formulation compositions and the processing parameters. This novel approach allowed the use of, polymer/inorganic excipients such as hydroxypropyl methylcellulose (HPMC) and magnesium aluminometasilicate (Neusilin(®)-MAS) with polyethylene glycol 2000 (PEG) as the binder without requiring a further drying step. IBU loaded batches were processed using a twin screw extruder to investigate the effect of MAS/polymer ratio, PEG amount (binder) and liquid to solid (L/S) ratios on the dissolution rates, mean particle size and the loss on drying (LoD) of the extruded granules. The DoE analysis showed that the defined independent variables of the twin screw granulation process have a complex effect on the measured outcomes. The solid state analysis showed the existence of partially amorphous IBU state which had a significant effect on the dissolution enhancement in acidic media. Furthermore, the analysis obtained from the surface mapping by Raman proved the homogenous distribution of the IBU in the extruded granulation formulations.
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Affiliation(s)
- Mohammed Maniruzzaman
- Faculty of Engineering and Science, School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, UK.
| | - Arun Nair
- Fuji Chemical Industry Co., Ltd., 12F The Front Tower Shiba Koen, 2-6-3 Shibakoen, Minato-Ward, Tokyo 105-0011 Japan
| | - Maxcene Renault
- IUT De Rouen, IUT de Rouen, Bâtiment A-1er étage, rue Lavoisier, 76821 Mont-Saint-Aignan, CEDEX France
| | - Uttom Nandi
- Faculty of Engineering and Science, School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, UK
| | - Nicholaos Scoutaris
- Faculty of Engineering and Science, School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, UK
| | - Richard Farnish
- Wolfson Centre of Bulk Solid Handling, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, UK
| | - Michael S A Bradley
- Wolfson Centre of Bulk Solid Handling, Faculty of Engineering and Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, UK
| | - Martin J Snowden
- Faculty of Engineering and Science, School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, UK
| | - Dennis Douroumis
- Faculty of Engineering and Science, School of Science, University of Greenwich, Chatham Maritime, Chatham, Kent ME4 4TB, UK.
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21
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Feasibility of highly branched cyclic dextrin as an excipient matrix in dry powder inhalers. Eur J Pharm Sci 2015; 79:79-86. [PMID: 26360838 DOI: 10.1016/j.ejps.2015.09.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2015] [Revised: 08/27/2015] [Accepted: 09/02/2015] [Indexed: 11/24/2022]
Abstract
We investigated the feasibility of highly branched cyclic dextrin (HBCD) as an excipient matrix in dry powder inhalers (DPIs). The fine particles of HBCD and HBCD/active pharmaceutical ingredients (APIs) were prepared by spray-drying an ethanol-aqueous solution containing HBCD. The particle size of spray-dried HBCD itself was approximately 3.0μm with a wrinkled shape. Solid-state fluorescence emission spectroscopy of 1-naphthoic acid (1-NPA) showed that it was dispersed in a molecular dispersion/solid solution, if the model compound of 1-NPA was spray-dried with HBCD. Powder X-ray diffraction and differential scanning calorimetry indicate that 1-NPA was in the amorphous state after spray-drying with HBCD, which is confirmed by the fluorescence measurements, 1-NPA could be incorporated into HBCD. When the antimycobacterial agent, rifampicin, was spray-dried with HBCD for the purpose of pulmonary administration, the emitted dose and fine-particle fraction of the spray-dried particles of rifampicin with HBCD were 95.7±1.7% and 39.5±5.7%, respectively. The results indicated that HBCD possessed a high potential as an excipient in DPIs, not only by molecular association of API molecules with HBCD, but also by that of API fine crystals.
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