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Journal of Aerosol Medicine and Pulmonary Drug Delivery

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https://www.readbyqxmd.com/read/28170282/pharmacokinetics-of-salbutamol-delivered-from-the-unit-dose-dry-powder-inhaler-comparison-with-the-metered-dose-inhaler-and-diskus-dry-powder-inhaler
#1
Alison Moore, Kylie Riddell, Shashidhar Joshi, Robert Chan, Rashmi Mehta
AIM: To compare the systemic exposure of salbutamol following delivery from the unit dose dry powder inhaler (UD-DPI) system with that from the Diskus(®) and metered dose inhaler (MDI). MATERIALS AND METHODS: This open-label, two-part, six-way crossover, randomized single-dose study in healthy subjects evaluated salbutamol systemic exposure of three dose strengths (using three inhalations: 3 × 150 μg [450 μg], 3 × 200 μg [600 μg], and 3 × 250 μg [750 μg]) and 2% of drug in lactose blends (1...
February 7, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28157430/factors-determining-in-vitro-lung-deposition-of-albuterol-aerosol-delivered-by-ventolin-metered-dose-inhaler
#2
Rajoshi Biswas, Nicola A Hanania, Ashutosh Sabharwal
BACKGROUND: The effectiveness of metered-dose inhalers (MDIs) in delivering medication to the lungs highly depends on its correct usage technique. Current guidelines state optimal technique for high lung deposition should include a slow inhalation (>5 seconds) at an inspiratory flow rate of 30 L/min and inhaler actuation at the start of inhalation. However, these recommendations were based on clinical studies using CFC (chlorofluorocarbon)-MDIs and in vitro studies of HFA (hydrofluoroalkane)-MDIs using idealized MDI techniques of uniform inhalation and actuation, disregarding the nonuniform techniques of actual patients...
February 3, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28157412/a-trans-nasal-aerosol-delivery-device-for-efficient-pulmonary-deposition
#3
Kirby L Zeman, Juan Rojas Balcazar, Fred Fuller, Karl H Donn, Richard C Boucher, William D Bennett, Scott H Donaldson
BACKGROUND: Efficient delivery of aerosols to the lungs via the nasal route has been difficult to achieve, but it may offer benefits over the traditional oral route for a range of patient populations. Because slow, continuous delivery of short-acting agents could improve safety, tolerability, compliance, and efficacy when compared with the rapid, intermittent aerosol treatments delivered by mouthpiece or mask, a novel trans-nasal pulmonary aerosol delivery (tPAD) device was developed...
February 3, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28075194/aerosol-drug-delivery-during-noninvasive-positive-pressure-ventilation-effects-of-intersubject-variability-and-excipient-enhanced-growth
#4
Ross L Walenga, P Worth Longest, Anubhav Kaviratna, Michael Hindle
BACKGROUND: Nebulized aerosol drug delivery during the administration of noninvasive positive pressure ventilation (NPPV) is commonly implemented. While studies have shown improved patient outcomes for this therapeutic approach, aerosol delivery efficiency is reported to be low with high variability in lung-deposited dose. Excipient enhanced growth (EEG) aerosol delivery is a newly proposed technique that may improve drug delivery efficiency and reduce intersubject aerosol delivery variability when coupled with NPPV...
January 11, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28075193/workshop-report-aerosol-delivery-to-spontaneously-breathing-tracheostomized-patients
#5
Ariel Berlinski, Arzu Ari, Phil Davies, Jim Fink, Carina Majaesic, Gregory Reychler, Taran Tatla, Israel Amirav
The number of pediatric and adult patients requiring tracheostomy has increased. Many of them require aerosol therapy as part of their treatment. Practitioners have little guidance on how to optimize drug delivery in this population. The following is a report of a workshop dedicated to review the current status of aerosol delivery to spontaneously breathing tracheostomized patients and to provide practice recommendations.
January 11, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28075184/elucidation-of-formulation-and-delivery-device-related-effects-on-in-vitro-performance-of-nasal-spray-with-implication-to-rational-product-specification-identification
#6
Jernej Grmaš, Katarina Stare, Dane Božič, Rade Injac, Rok Dreu
BACKGROUND: The aim of this work is to use an experimental design approach to identify and study influential formulation and delivery device properties, which can be controlled by final product manufacturer, to establish design space, within which desired in vitro performance can be reached. METHODS: Combining three factors, viscosity of suspension, nozzle orifice diameter (OD), and shot weight (SW), at three levels resulted in D-optimal experimental design with 20 runs...
January 11, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/28075182/dispersing-the-mists-an-experimental-history-of-medicine-study-into-the-quality-of-volatile-inhalations
#7
Barry Murnane, Cathal T Gallagher, Noel Snell, Mark Sanders, Ramin Moshksar, Darragh Murnane
BACKGROUND: Dr. Nelson's Improved Inhaler was first marketed with an advertisement in The Lancet in 1865. Revolutionary at the time for its ease of use and patient-friendliness, the inhaler is still in use for self-treatment by many all over the world. On the occasion of its 150th anniversary, this study reports an experimental historical medicine approach to identify evidence for the quality of vapor inhalers. METHODS: Through accessing reviews of the device's use by the contemporary medical establishment, it was established that Dr...
January 11, 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27977321/comparative-study-on-the-size-distributions-respiratory-deposition-and-transport-of-particles-generated-from-commonly-used-medical-nebulizers
#8
Yang Wang, Jiayu Li, Anna Leavey, Caroline O'Neil, Hilary M Babcock, Pratim Biswas
BACKGROUND: Medical nebulizers are widely and conveniently used to deliver medication to the lungs as an inhalable mist; however, the deposition of nebulized particles in the human respiratory system and the transport of the nebulized particles in the environment have not been studied in detail. METHODS: Five medical nebulizers of three different types (constant output, breath enhanced, and dosimetric) were evaluated. The size distribution functions (SDFs) and respiratory deposition of the particles generated from the nebulizers were characterized...
December 15, 2016: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27977318/nebulized-recombinant-human-tissue-factor-pathway-inhibitor-attenuates-coagulation-and-exerts-modest-anti-inflammatory-effects-in-rat-models-of-lung-injury
#9
Florry E van den Boogaard, Jorrit J Hofstra, Xanthe Brands, Marcel M Levi, Joris J T H Roelofs, Sebastiaan A J Zaat, Cornelis Van't Veer, Tom van der Poll, Marcus J Schultz
BACKGROUND: Critically ill patients are at a constant risk of direct (e.g., by pneumonia) or indirect lung injury (e.g., by sepsis). Excessive alveolar fibrin deposition is a prominent feature of lung injury, undermining pulmonary integrity and function. METHODS: We examined the effect of local administration of recombinant human tissue factor pathway inhibitor (rh-TFPI), a natural anticoagulant, in two well-established models of lung injury in rats. Rats received intratracheal instillation of Pseudomonas aeruginosa, causing direct lung injury, or they received an intravenous injection of Escherichia coli lipopolysaccharide (LPS), causing indirect lung injury...
December 15, 2016: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27977309/drug-delivery-in-asthmatic-children-following-coordinated-and-uncoordinated-inhalation-maneuvers-a-randomized-crossover-trial
#10
Ariel Berlinski, Dirk von Hollen, Ross H M Hatley, Lucy E A Hardaker, Kurt Nikander
BACKGROUND: Valved holding chambers (VHCs) are used in children to deliver pressurized metered dose inhalers (pMDI). In vitro data suggest that uncoordinated use decreases the amount of drug available for inhalation. We hypothesize that in an ex vivo study, the coordinated maneuver will deliver more drug than the uncoordinated one. PATIENTS AND METHODS: Thirty-two clinically stable asthmatic children, ages 5-8 years, completed the study. An aerosol filter was interposed between a small-volume nonelectrostatic VHC and a mouthpiece to capture the drug emitted by one puff of Flovent(®) 220 mcg during tidal breathing...
December 15, 2016: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27977306/nasal-and-olfactory-deposition-with-normal-and-bidirectional-intranasal-delivery-techniques-in-vitro-tests-and-numerical-simulations
#11
Jinxiang Xi, Zhaoxuan Wang, Danielle Nevorski, Thomas White, Yue Zhou
BACKGROUND: Intranasal delivery protocols that can effectively deposit drugs to the olfactory region are severely lacking. Furthermore, it is still challenging to quantify nasal deposition on a regional or local basis, which is crucial in assessing the performance of targeted olfactory drug delivery. OBJECTIVES: To visually and quantitatively compare drug depositions in the nose and olfactory region with normal and bidirectional breathing patterns with vibrating mesh and jet nebulizers...
December 15, 2016: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27748638/the-history-of-therapeutic-aerosols-a-chronological-review
#12
Stephen W Stein, Charles G Thiel
In 1956, Riker Laboratories, Inc., (now 3 M Drug Delivery Systems) introduced the first pressurized metered dose inhaler (MDI). In many respects, the introduction of the MDI marked the beginning of the modern pharmaceutical aerosol industry. The MDI was the first truly portable and convenient inhaler that effectively delivered drug to the lung and quickly gained widespread acceptance. Since 1956, the pharmaceutical aerosol industry has experienced dramatic growth. The signing of the Montreal Protocol in 1987 led to a surge in innovation that resulted in the diversification of inhaler technologies with significantly enhanced delivery efficiency, including modern MDIs, dry powder inhalers, and nebulizer systems...
February 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27676193/inhaler-technique-in-asthma-how-does-it-relate-to-patients-preferences-and-attitudes-toward-their-inhalers
#13
Lia Jahedi, Sue R Downie, Bandana Saini, Hak-Kim Chan, Sinthia Bosnic-Anticevich
BACKGROUND: Correct inhaler technique can increase medication efficacy, reducing both dose and side effects. Patient preference for inhaler device has not been fully explored, and we hypothesized that if patients have a preference and can choose their inhaler, they might be more likely to use it correctly. Our aim was to determine the preferences, attitudes, and perceptions of patients with asthma toward their inhalers, and to evaluate whether any of these factors were related to inhalation technique...
February 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27635793/variability-in-delivered-dose-from-pressurized-metered-dose-inhaler-formulations-due-to-a-delay-between-shake-and-fire
#14
Ross H M Hatley, Jacob Parker, John N Pritchard, Dirk von Hollen
BACKGROUND: Pressurized metered-dose inhalers (pMDIs) should be shaken before use to prevent creaming or sedimentation of the drugs in solution; however, data published on this topic are limited, and it is rarely specified how soon after shaking the device should be actuated. Delays between shaking and firing the pMDI have previously been shown to cause significant inhomogeneity in delivered dose. We studied the effect of various shake-fire delays on the drug delivered from five commercially available pMDIs commonly prescribed for asthma and chronic obstructive pulmonary disease to assess the potential variability in delivered dose...
February 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27563934/dry-powder-inhaler-delivery-of-tobramycin-in-in-vitro-models-of-tracheostomized-children
#15
Wallace B Wee, Scott Tavernini, Andrew R Martin, Israel Amirav, Carina Majaesic, Warren H Finlay
BACKGROUND: Pediatric tracheostomies are not uncommon and aerosols allow for targeted lung therapy. However, there is little literature that quantifies aerosol delivery through tracheostomies. Nebulizers are commonly used in delivering tobramycin, but there are drawbacks, for example, time burden. Dry powder inhalers (DPIs) can deliver higher payloads in less time. However, no data exist assessing DPIs with tracheostomies. OBJECTIVE: The study's aim was to quantify the amount of aerosolized tobramycin delivered to the lungs of in vitro tracheostomized spontaneously breathing pediatric models with the TOBI(®) Podhaler™ (Podhaler) and the PARI LC Plus(®) (LC Plus)...
February 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27537608/patient-focus-and-regulatory-considerations-for-inhalation-device-design-report-from-the-2015-ipac-rs-isam-workshop
#16
Nicolas Roche, Gerhard Scheuch, John N Pritchard, Cornelia Nopitsch-Mai, Deepika A Lakhani, Bhawana Saluja, Janine Jamieson, Andrew Dundon, Roisin Wallace, Susan Holmes, David Cipolla, Myrna B Dolovich, Samir A Shah, Svetlana Lyapustina
This article reports on discussions at the 2015 workshop cosponsored by the International Pharmaceutical Aerosol Consortium on Regulation and Science (IPAC-RS) and the International Society for Aerosols in Medicine (ISAM), entitled "Regulatory and Patient Considerations for Inhalation Device Design, Development and Use." Key topics addressed at the workshop and presented here include patient-focused device design for orally inhaled products (OIPs), instructions for use (IFU), human factors, regulatory considerations in the United States and Europe, development of generic inhalers, quality-by-design, and change management of OIP devices...
February 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27448179/ciprofloxacin-dry-powder-for-inhalation-in-patients-with-non-cystic-fibrosis-bronchiectasis-or-chronic-obstructive-pulmonary-disease-and-in-healthy-volunteers
#17
Heino Stass, Johannes Nagelschmitz, Dominik Kappeler, Knut Sommerer, Claudius Kietzig, Boris Weimann
BACKGROUND: Ciprofloxacin dry powder for inhalation (Ciprofloxacin DPI) is in development as long-term intermittent therapy to reduce the frequency of acute exacerbations in non-cystic fibrosis bronchiectasis (NCFB) patients with respiratory bacterial pathogens. There is no approved therapy in this indication. Reliable, reproducible lung deposition is a prerequisite for inhaled drugs. METHODS: In this phase I study, six patients with NCFB, six with chronic obstructive pulmonary disease (COPD), and 12 healthy volunteers (HVs), received one dose of (99m)Tc-Ciprofloxacin DPI 32...
February 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27336220/inhaled-antibiotic-therapy-for-the-treatment-of-upper-respiratory-tract-infections
#18
Susanna Esposito, Chiara Rosazza, Calogero Sathya Sciarrabba, Nicola Principi
Upper respiratory tract infections (URTIs), primarily acute rhinopharyngitis, tonsillitis, adenoiditis, and rhinosinusitis (RS), are major causes of morbidity in both children and adults of any age. In addition to the frequent occurrence of related medical problems and the associated socioeconomic costs, URTIs have a significant impact on the quality of life of patients and their families, and have placed an escalating financial burden on the global healthcare system. Most URTIs are caused by viruses and require only symptomatic treatment...
February 2017: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27504720/characterization-of-medication-velocity-and-size-distribution-from-pressurized-metered-dose-inhalers-by-phase-doppler-anemometry
#19
Abubaker Alatrash, Edgar Matida
BACKGROUND: Particle size and velocity are two of the most significant factors that impact the deposition of pressurized metered-dose inhaler (pMDI) sprays in the mouth cavity. pMDIs are prominently used around the world in the treatment of patients suffering from a variety of lung diseases such as asthma and chronic obstructive pulmonary disease. Since their introduction in the field, and as a result of their effectiveness and simplicity of usage, pMDIs are considered to be the most widely prescribed medical aerosol delivery system...
December 2016: Journal of Aerosol Medicine and Pulmonary Drug Delivery
https://www.readbyqxmd.com/read/27186789/atomized-human-amniotic-mesenchymal-stromal-cells-for-direct-delivery-to-the-airway-for-treatment-of-lung-injury
#20
Sally Yunsun Kim, Janette K Burgess, Yiwei Wang, Eleanor P W Kable, Daniel J Weiss, Hak-Kim Chan, Wojciech Chrzanowski
BACKGROUND: Current treatment regimens for inhalation injury are mainly supportive and rely on self-regeneration processes for recovery. Cell therapy with mesenchymal stromal cells (MSCs) is increasingly being investigated for the treatment of inhalation injury. Human amniotic MSCs (hAMSCs) were used in this study due to their potential use in inflammatory and fibrotic conditions of the lung. This study aimed at demonstrating that hAMSCs can be atomized with high viability, for the purpose of achieving a more uniform distribution of cells throughout the lung...
December 2016: Journal of Aerosol Medicine and Pulmonary Drug Delivery
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