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Zeng P, Zhang P, Chan HW, Chow SF, Lam JKW, Ip M, Leung SSY. Storage stability of lysostaphin solution and its pulmonary delivery. Drug Deliv Transl Res 2024; 14:2433-2443. [PMID: 38231385 PMCID: PMC11291608 DOI: 10.1007/s13346-024-01518-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2024] [Indexed: 01/18/2024]
Abstract
Methicillin-resistant Staphylococcus aureus (MRSA) has become a leading causative pathogen of nosocomial pneumonia with an alarming in-hospital mortality rate of 30%. Last resort antibiotic, vancomycin, has been increasingly used to treat MRSA infections, but the rapid emergence of vancomycin-resistant strains urges the development of alternative treatment strategies against MRSA-associated pneumonia. The bacteriolytic enzyme, lysostaphin, targeting the cell wall peptidoglycan of S. aureus, has been considered as a promising alternative for MRSA infections. Its proteinaceous nature is likely benefit from direct delivery to the lungs, but the challenges for successful pulmonary delivery of lysostaphin lying on a suitable inhalation device and a formulation with sufficient storage stability. In this study, the applicability of a vibrating mesh nebulizer (Aerogen Solo®) and a soft mist inhaler (Respimat®) was investigated. Both devices were capable of aerosolizing lysostaphin solution into inhalable droplets and caused minimum antibacterial activity loss. In addition, lysostaphin stabilized with phosphate-buffered saline and 0.1% Tween 80 was proved to have acceptable stability for at least 12 months when stored at 4 °C. These promising data encourage further clinical development of lysostaphin for management of MRSA-associated lung infections.
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Affiliation(s)
- Ping Zeng
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Pengfei Zhang
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ho Wan Chan
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Shing Fung Chow
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Jenny Ka Wing Lam
- Department of Pharmacology and Pharmacy, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
- Department of Pharmaceutics, UCL School of Pharmacy, University College London, 29-39 Brunswick Square, London, WC1N 1AX, UK
| | - Margaret Ip
- Department of Microbiology, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Sharon Shui Yee Leung
- School of Pharmacy, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China.
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2
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Dal Negro RW. Usability of inhaler devices: a parameter currently misused. Multidiscip Respir Med 2024; 19:960. [PMID: 38577745 PMCID: PMC10968837 DOI: 10.5826/mrm.2024.960] [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: 02/07/2024] [Accepted: 02/14/2024] [Indexed: 04/06/2024] Open
Abstract
Inhalation represents the most convenient route for delivering respiratory drugs. Delivery systems showed a huge technological progress and several pocket inhalers had been engineered over the last decades for clinical use. Despite the growing technological efforts aimed to simplify the inhalation procedures and optimize the therapeutic outcomes, the effectiveness of drug inhalation through inhalers still represents a major challenge in respiratory medicine. Patients may actually incur in different types of critical errors when using all inhalers and are not capable to inhale throughout all devices equally well. Therefore, the choice of the most suitable and convenient device to prescribe still is a critical issue in real life. Usability is the only comprehensive parameter consenting the effective and objective assessment of pocket inhalers' performance, and allowing their objective comparison and ranking. Unpredictable discrepancies are in fact easily detectable between inhalers (even belonging to the same class) in terms of Usability, independently of the patient's awareness. The reasons were described and discussed for each class of inhalers presently available. Usability is a multidimensional parameter that is much more multifaceted and complex than usually presumed. Usability takes origin from the integrated, balanced and objective assessment of the role played by several factors from different domains, such as: factors related to patient's beliefs, to patients' behavioural components, to device engineering and to the overall cost. Usability is the key parameter for assessing and optimizing the appropriateness of any inhalation treatment through whatever device. Usability would also represent a key investigational instrument for supporting the future development of -innovative and more performing inhaler devices objectively.
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Affiliation(s)
- Roberto W Dal Negro
- National Centre for Respiratory Pharmacoeconomics & Pharmacoepidemiology - CESFAR, Verona
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3
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Puri M, Miranda-Hernandez S, Subbian S, Kupz A. Repurposing mucosal delivery devices for live attenuated tuberculosis vaccines. Front Immunol 2023; 14:1159084. [PMID: 37063870 PMCID: PMC10098179 DOI: 10.3389/fimmu.2023.1159084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 03/20/2023] [Indexed: 04/04/2023] Open
Abstract
Tuberculosis (TB) remains one of the most lethal infectious diseases globally. The only TB vaccine approved by the World Health Organization, Bacille Calmette-Guérin (BCG), protects children against severe and disseminated TB but provides limited protection against pulmonary TB in adults. Although several vaccine candidates have been developed to prevent TB and are undergoing preclinical and clinical testing, BCG remains the gold standard. Currently, BCG is administered as an intradermal injection, particularly in TB endemic countries. However, mounting evidence from experimental animal and human studies indicates that delivering BCG directly into the lungs provides enhanced immune responses and greater protection against TB. Inhalation therapy using handheld delivery devices is used for some diseases and allows the delivery of drugs or vaccines directly into the human respiratory tract. Whether this mode of delivery could also be applicable for live attenuated bacterial vaccines such as BCG or other TB vaccine candidates remains unknown. Here we discuss how two existing inhalation devices, the mucosal atomization device (MAD) syringe, used for influenza vaccines, and the Respimat® Soft Mist™ inhaler, used for chronic obstructive pulmonary disease (COPD) therapy, could be repurposed for mucosal delivery of live attenuated TB vaccines. We also outline the challenges and outstanding research questions that will require further investigations to ensure usefulness of respiratory delivery devices that are cost-effective and accessible to lower- and middle-income TB endemic countries.
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Affiliation(s)
- Munish Puri
- College of Public Health, Medical and Veterinary Sciences, James Cook University, Townsville, QLD, Australia
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia
| | - Socorro Miranda-Hernandez
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia
| | - Selvakumar Subbian
- Public Health Research Institute (PHRI), New Jersey Medical School, Rutgers University, Newark, NJ, United States
| | - Andreas Kupz
- Centre for Molecular Therapeutics, Australian Institute of Tropical Health and Medicine, James Cook University, Cairns, QLD, Australia
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4
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Pulmonary Delivery of Favipiravir in Rats Reaches High Local Concentrations without Causing Oxidative Lung Injury or Systemic Side Effects. Pharmaceutics 2022; 14:pharmaceutics14112375. [DOI: 10.3390/pharmaceutics14112375] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 10/25/2022] [Accepted: 10/26/2022] [Indexed: 11/06/2022] Open
Abstract
Favipiravir displays a rapid viral clearance, a high recovery rate and broad therapeutic safety; however, its oral administration was associated with systemic side effects in susceptible patients. Considering that the pulmonary route could provide a high drug concentration, and a safer application with less absorption into systemic circulation, it was aimed to elucidate whether favipiravir delivered via soft-mist inhaler has any deleterious effects on lung, liver and kidney tissues of healthy rats. Wistar albino rats of both sexes (n = 72) were placed in restrainers, and were given either saline or favipiravir (1, 2.5, 5 or 10 mg/kg in 1 mL saline) by inhalation within 2 min for 5 consecutive days. On the 6th day, electrocardiographic recording was obtained, and cardiac blood and lung tissues were collected. Favipiravir did not alter cardiac rhythm, blood cell counts, serum levels of alanine transaminase, aspartate transaminase, blood urea nitrogen, creatinine, urea or uric acid, and did not cause any significant changes in the pulmonary malondialdehyde, myeloperoxidase activity or antioxidant glutathione levels. Our data revealed that pulmonary use of favipiravir via soft-mist inhaler enables a high local concentration compared to plasma without oxidative lung injury or cardiac or hepatorenal dysfunction.
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Liang Y, Mak JCW. Inhaled Therapies for Asthma and Chronic Obstructive Pulmonary Disease. Curr Pharm Des 2021; 27:1469-1481. [PMID: 33243107 DOI: 10.2174/1389201021666201126144057] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 09/23/2020] [Accepted: 10/01/2020] [Indexed: 11/22/2022]
Abstract
Asthma and chronic obstructive pulmonary disease (COPD) are obstructive lung diseases which are characterized by chronic inflammation and an increase in mucus production, and are highly prevalent conditions. Despite recent advances and multiple available therapies, there remains a significant unmet medical need. Over the past 40 years, the introduction of new classes of safe and effective therapy is insufficient. In spite of the high burden of asthma and COPD among patients, there are fewer new approved therapies in comparison to cardiovascular, metabolic and neurological diseases due to few drug candidates and a higher failure rate in the development of respiratory medicine. Lung diseases are amongst the leading causes of death globally with asthma being one of the most prevalent respiratory diseases, which affects people of all ages but, despite effective therapies available, many patients are poorly controlled and have a low quality of life. COPD is currently ranked as the fourth cause of death worldwide and predicted to become the third leading cause of death in 2030. The development of more effective treatments is urgently needed in order to reduce the high mortality rate and the enormous suffering from asthma and COPD. Various inhalation devices with different classes of medications are the foundation as therapies in both asthma and COPD. This article gives a comprehensive review of the promising inhaled therapies in the treatment of asthma and COPD. However, the lack of disease control in asthma and COPD patients may be due to numerous reasons. The association between non-adherence to guidelines on the part of the health care provider and poor inhalation technique and/or non-adherence to the prescribed treatment plan by the patients is common. It is therefore essential to discuss the different delivery systems and the methods used in asthma and COPD patients.
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Affiliation(s)
- Yingmin Liang
- Department of Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
| | - Judith C W Mak
- Department of Medicine, LKS Faculty of Medicine, The University of Hong Kong, Hong Kong SAR, China
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Baloira A, Abad A, Fuster A, García Rivero JL, García-Sidro P, Márquez-Martín E, Palop M, Soler N, Velasco JL, González-Torralba F. Lung Deposition and Inspiratory Flow Rate in Patients with Chronic Obstructive Pulmonary Disease Using Different Inhalation Devices: A Systematic Literature Review and Expert Opinion. Int J Chron Obstruct Pulmon Dis 2021; 16:1021-1033. [PMID: 33907390 PMCID: PMC8064620 DOI: 10.2147/copd.s297980] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 03/21/2021] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Our aim was to describe: 1) lung deposition and inspiratory flow rate; 2) main characteristics of inhaler devices in chronic obstructive pulmonary disease (COPD). METHODS A systematic literature review (SLR) was conducted to analyze the features and results of inhaler devices in COPD patients. These devices included pressurized metered-dose inhalers (pMDIs), dry powder inhalers (DPIs), and a soft mist inhaler (SMI). Inclusion and exclusion criteria were established, as well as search strategies (Medline, Embase, and the Cochrane Library up to April 2019). In vitro and in vivo studies were included. Two reviewers selected articles, collected and analyzed data independently. Narrative searches complemented the SLR. We discussed the results of the reviews in a nominal group meeting and agreed on various general principles and recommendations. RESULTS The SLR included 71 articles, some were of low-moderate quality, and there was great variability regarding populations and outcomes. Lung deposition rates varied across devices: 8%-53% for pMDIs, 7%-69% for DPIs, and 39%-67% for the SMI. The aerosol exit velocity was high with pMDIs (more than 3 m/s), while it is much slower (0.84-0.72 m/s) with the SMI. In general, pMDIs produce large-sized particles (1.22-8 μm), DPIs produce medium-sized particles (1.8-4.8 µm), and 60% of the particles reach an aerodynamic diameter <5 μm with the SMI. All inhalation devices reach central and peripheral lung regions, but the SMI distribution pattern might be better compared with pMDIs. DPIs' intrinsic resistance is higher than that of pMDIs and SMI, which are relatively similar and low. Depending on the DPI, the minimum flow inspiratory rate required was 30 L/min. pMDIs and SMI did not require a high inspiratory flow rate. CONCLUSION Lung deposition and inspiratory flow rate are key factors when selecting an inhalation device in COPD patients.
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Affiliation(s)
- Adolfo Baloira
- Complejo Hospitalario Universitario de Pontevedra, Pontevedra, Spain
| | | | - Antonia Fuster
- Hospital Unvidersitario Son Llàtzer, Palma de Mallorca, Spain
| | | | | | - Eduardo Márquez-Martín
- Hospital Virgen del Rocío, Sevilla, Spain
- CIBERES, Instituto de Salud Carlos III, Madrid, Spain
| | | | | | - J L Velasco
- Hospital Universitario Virgen de la Victoria, Málaga, Spain
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7
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Ari A. A path to successful patient outcomes through aerosol drug delivery to children: a narrative review. ANNALS OF TRANSLATIONAL MEDICINE 2021; 9:593. [PMID: 33987291 PMCID: PMC8105845 DOI: 10.21037/atm-20-1682] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 07/03/2020] [Indexed: 11/06/2022]
Abstract
Although using aerosolized medications is a mainstay of treatment in children with asthma and other respiratory diseases, there are many issues in terms of device and interface selection, delivery technique and dosing, as well as patient and parental education that have not changed for half a century. Also, due to many aerosol devices and interfaces available on the market and the broad range of patient characteristics and requirements, providing effective aerosol therapy to children becomes a challenge. While aerosol delivery devices are equally effective, if they are age-appropriate and used correctly, the majority of aerosol devices require multiple steps to be used efficiently. Unfortunately, many children with pulmonary diseases have problems with the correct delivery technique and do not gain therapeutic benefits from therapy that result in poor disease management and increased healthcare costs. Therefore, the purpose of this paper is to review the current knowledge on aerosol delivery devices used in children and guide clinicians on the optimum device- and interface-selection, delivery technique, and dosing in this patient population. Strategies on how to deliver aerosolized medications in crying and distressed children and how to educate parents on aerosol therapy and promote patient adherence to prescribed medications are also provided. Future directions of aerosol therapy in children should focus on these issues and implement policies and clinical practices that highlight the potential solutions to these problems.
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Affiliation(s)
- Arzu Ari
- Department of Respiratory Care, Texas State University, Round Rock, TX, USA
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8
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Ciciliani AM, Denny M, Langguth P, Voshaar T, Wachtel H. Lung Deposition Using the Respimat ® Soft Mist™ Inhaler Mono and Fixed-Dose Combination Therapies: An In Vitro/ In Silico Analysis. COPD 2020; 18:91-100. [PMID: 33302718 DOI: 10.1080/15412555.2020.1853091] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Tiotropium and olodaterol are mainstay treatments for chronic obstructive pulmonary disease (COPD) and yield important clinical improvements, especially when used in fixed-dose combination. Whilst previous studies have shown consistent delivery of tiotropium to the lungs with the Respimat® inhaler, no such study has been carried out for olodaterol or the components of their fixed-dose combination (TIO/OLO). Combining in vitro and in silico models, we measured the amount of drug retained in the mouth-throat area, entering the trachea and reaching the lung periphery. We applied a hybrid deposition model that considered the experimentally determined output of an Alberta throat model (in vitro - dose to lung) combined with a computational fluid dynamic model of the lungs (in silico). Regardless of the COPD breathing pattern, ≥50% of the nominal dose of either tiotropium, olodaterol, or TIO and OLO in the fixed-dose combination reached the lung. Of the dose reaching the lungs, greater than 50% is deposited in the lung periphery (from generation 8 onwards). Our study demonstrated that aerosol delivery via the Respimat inhaler achieved high deposition deep into the lung periphery with all formulations evaluated.
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Affiliation(s)
- Anna-Maria Ciciliani
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University Mainz, Mainz, Germany
| | - Mark Denny
- Respiratory Drug Delivery, Boehringer Ingelheim Pharma GmbH & Co. KG, Ingelheim am Rhein, Germany
| | - Peter Langguth
- Institute of Pharmacy and Biochemistry, Johannes Gutenberg University Mainz, Mainz, Germany
| | | | - Herbert Wachtel
- Analytical Development, Boehringer Ingelheim Pharma GmbH & Co. KG, Ingelheim am Rhein, Germany
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9
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Singer D, Bengtson LGS, Elliott C, Buikema AR, Franchino-Elder J. Healthcare Resource Utilization, Exacerbations, and Readmissions Among Medicare Patients with Chronic Obstructive Pulmonary Disease After Long-Acting Muscarinic Antagonist Therapy Initiation with Soft Mist versus Dry Powder Inhalers. Int J Chron Obstruct Pulmon Dis 2020; 15:3239-3250. [PMID: 33324047 PMCID: PMC7732756 DOI: 10.2147/copd.s284678] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Accepted: 11/16/2020] [Indexed: 12/27/2022] Open
Abstract
Background Chronic obstructive pulmonary disease (COPD) is often managed with inhaled long-acting muscarinic antagonists (LAMAs), yet real-world data on healthcare resource utilization (HRU) by inhaler type are lacking. This study compared HRU after LAMA initiation with a soft mist inhaler (SMI) versus a dry powder inhaler (DPI). Patients and Methods Inclusion criteria were COPD diagnosis, age ≥40 years, LAMA initiation (index date = first LAMA SMI or DPI claim 9/1/14—6/30/18), and Medicare Advantage enrollment 1 year pre-index (baseline) to ≥30 days post-index (follow-up). Patients were followed to the earliest of discontinuation, switch, disenrollment, 1 year, or study end (7/31/18). Exclusion criteria were asthma, cystic fibrosis, or lung cancer diagnoses, unavailable demographics, multiple index LAMAs, or baseline LAMA use. Cohorts (SMI or DPI) were balanced on baseline characteristics using inverse probability of treatment weighting. Outcomes included per patient per month (PPPM) COPD-related HRU encounters, and exacerbations (defined as moderate [ambulatory visit with corticosteroid or antibiotic within ±7 days] or severe [emergency visit or inpatient admission]); and 30-day readmissions following COPD-related hospitalizations. Results After weighting, cohorts (SMI [n=5360] and DPI [n=22,880]) were similar in age (72 and 73 years, respectively), gender (both 52% female), and COPD severity score (31.3 and 31.5, respectively). Cohorts had similar counts of follow-up HRU encounters. However, the SMI cohort had fewer (mean ± standard deviation) COPD-related exacerbations (0.054±0.082 vs DPI cohort 0.059±0.088 PPPM, p<0.001) overall. Moreover, the SMI cohort had fewer severe exacerbations (0.030±0.058 vs DPI: 0.034±0.065 PPPM, p<0.001). Hospitalizations among SMI patients had a lower adjusted odds of readmission versus hospitalizations among DPI patients (odds ratio: 0.656, 95% confidence interval= 0.460, 0.937; p=0.020). Conclusion SMI initiators had significantly fewer COPD-related exacerbations than DPI initiators. In addition, lower odds of readmissions were observed following COPD-related hospitalizations among the SMI cohort, as compared with the DPI cohort.
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Affiliation(s)
- David Singer
- Health Economics and Outcomes Research, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT, USA
| | | | - Caitlin Elliott
- Health Economics and Outcomes Research, Optum, Eden Prairie, MN, USA
| | - Ami R Buikema
- Health Economics and Outcomes Research, Optum, Eden Prairie, MN, USA
| | - Jessica Franchino-Elder
- Health Economics and Outcomes Research, Boehringer Ingelheim Pharmaceuticals Inc., Ridgefield, CT, USA
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10
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Anzueto A, Miravitlles M. Tiotropium in chronic obstructive pulmonary disease - a review of clinical development. Respir Res 2020; 21:199. [PMID: 32727455 PMCID: PMC7389564 DOI: 10.1186/s12931-020-01407-y] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2020] [Accepted: 05/26/2020] [Indexed: 12/13/2022] Open
Abstract
Background Bronchodilators are the mainstay of pharmacological treatment in chronic obstructive pulmonary disease (COPD), and long-acting muscarinic antagonist (LAMA) monotherapy is recommended as initial treatment for Global Initiative for Chronic Obstructive Lung Disease (GOLD) groups B, C, and D. Main body Tiotropium bromide was the first LAMA available for COPD in clinical practice and, because of its long duration of action, is administered once daily. Tiotropium was initially available as an inhalation powder delivered via a dry-powder inhaler (DPI). Later, tiotropium also became available as an inhalation spray delivered via a soft mist inhaler (SMI). The SMI was designed to overcome or minimize some of the issues associated with other inhaler types (eg, the need for strong inspiratory airflow with DPIs). Results of short- and long-term randomized, controlled clinical trials of tiotropium in patients with COPD indicated tiotropium was safe and significantly improved lung function, health-related quality of life, and exercise endurance, and reduced dyspnea, lung hyperinflation, exacerbations, and use of rescue medication compared with placebo or active comparators. These positive efficacy findings triggered the evaluation of tiotropium in fixed-dose combination with olodaterol (a long-acting β2-agonist). In this review, we provide an overview of studies of tiotropium for the treatment of COPD, with a focus on pivotal studies. Conclusion Tiotropium is safe and efficacious as a long-term, once-daily LAMA for the maintenance treatment of COPD and for reducing COPD exacerbations. The SMI generates a low-velocity, long-duration aerosol spray with a high fine-particle fraction, which results in marked lung drug deposition. In addition, high inspiratory flow rates are not required.
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Affiliation(s)
- Antonio Anzueto
- Internal Medicine, Pulmonary Disease, University of Texas Health, and South Texas Veterans Health Care System, San Antonio, TX, USA.
| | - Marc Miravitlles
- Pneumology Department, Hospital Universitary Vall d'Hebron/Vall d'Hebron Research Institute (VHIR). CIBER de Enfermedades Respiratorias (CIBERES), Barcelona, Spain
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11
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The Respimat ® Soft Mist Inhaler: Implications of Drug Delivery Characteristics for Patients. Clin Drug Investig 2020; 39:1021-1030. [PMID: 31377981 PMCID: PMC6800401 DOI: 10.1007/s40261-019-00835-z] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Successful treatment for respiratory diseases relies on effective delivery of medication to the lungs using an inhalation device. Different inhalers have distinct characteristics affecting drug administration and patient adherence, which can impact clinical outcomes. We report on the development of the Respimat® soft mist inhaler (SMI) and compare key attributes with metered-dose inhalers (MDIs) and dry powder inhalers (DPIs). The Respimat SMI, a pocket-sized device generating a single-breath, inhalable aerosol, was designed to enhance drug delivery to the lungs, reduce the requirements for patient coordination and inspiratory effort, and improve the patients’ experience and ease of use. The drug deposition profile with Respimat SMI is favorable compared with MDIs and DPIs, with higher drug deposition to the lung and peripheral airways. The slow velocity and long spray duration of the Respimat SMI aerosol also aid patient coordination. Clinical equivalence has been demonstrated for maintenance treatment of chronic obstructive pulmonary disease using once-daily tiotropium between Respimat SMI (5 µg) and HandiHaler DPI (18 µg). In comparative studies, patients preferred Respimat SMI to MDIs and DPIs; they reported that Respimat SMI was easy to use and felt the inhaled dose was delivered. The Respimat SMI, designed to generate a slow-moving and fine mist, is easy to use and effectively delivers drug treatment to the lungs. The patient-centered design of Respimat SMI improved patient satisfaction, and may help to promote long-term adherence and improve clinical outcomes with asthma and chronic obstructive pulmonary disease.
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12
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Abdel-Gawad R, Osman R, Awad GA, Mortada N. Lecithin-based modified soft agglomerate composite microparticles for inhalable montelukast: Development, tolerability and pharmacodynamic activity. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2019.11.029] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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13
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D'Urzo A, Chapman KR, Donohue JF, Kardos P, Maleki-Yazdi MR, Price D. Inhaler Devices for Delivery of LABA/LAMA Fixed-Dose Combinations in Patients with COPD. Pulm Ther 2019; 5:23-41. [PMID: 32026426 PMCID: PMC6967354 DOI: 10.1007/s41030-019-0090-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2018] [Indexed: 02/07/2023] Open
Abstract
Inhaled fixed-dose combinations (FDCs) of a long-acting β-agonist (LABA) and a long-acting muscarinic antagonist (LAMA) have become the cornerstone for the maintenance treatment of symptomatic COPD patients. In this regard, global COPD treatment guidelines have recognized the importance of inhaler devices as integral contributors to the effectiveness of LABA/LAMA FDCs and recommend regular assessment of inhaler device use by the patients in order to improve long-term clinical outcomes. Optimal disease control is also highly dependent upon patient preferences and adherence to inhaler devices. This review objectively examines and compares the major inhaler devices used to deliver different LABA/LAMA FDCs, discusses the inhaler device characteristics that determine drug deposition in the airways, real-life preference for inhaler devices, and handling of inhaler devices that impact the results of the long-term management of COPD. The introduction of new LABA/LAMA FDCs, new inhaler devices, and more clinical studies have created confusion among physicians in choosing the optimal inhaled therapy for COPD patients; in this context, this review attempts to provide an evidence-based framework for informed decision-making with a particular focus on the inhaler devices.Funding. The preparation of this manuscript was funded by Novartis Pharma AG.
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Affiliation(s)
- Anthony D'Urzo
- Department of Family and Community Medicine, University of Toronto, Toronto, ON, Canada.
| | - Kenneth R Chapman
- Asthma and Airway Centre, University Health Network, University of Toronto, Toronto, ON, Canada
| | - James F Donohue
- Pulmonary Diseases and Critical Care Medicine, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
| | - Peter Kardos
- Group Practice and Centre for Allergy, Respiratory and Sleep Medicine, Red Cross Maingau Hospital, Frankfurt, Germany
| | - M Reza Maleki-Yazdi
- Division of Respiratory Medicine, Women's College Hospital, University of Toronto, Toronto, ON, Canada
| | - David Price
- Centre of Academic Primary Care, University of Aberdeen, Aberdeen, UK
- Observational and Pragmatic Research Institute, Singapore, Singapore
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14
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Malerba M, Foci V, Patrucco F, Pochetti P, Nardin M, Pelaia C, Radaeli A. Single Inhaler LABA/LAMA for COPD. Front Pharmacol 2019; 10:390. [PMID: 31105560 PMCID: PMC6494943 DOI: 10.3389/fphar.2019.00390] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 03/29/2019] [Indexed: 01/04/2023] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a common disabling disease characterized by progressive airflow obstruction. Great efforts were spent in the development of drugs able to improve symptoms, quality of life, reduce exacerbations, hospitalizations and the frequency of death of patients with COPD. The cornerstones of treatment are bronchodilator drugs of two different classes: beta agonists and muscarinic antagonists. Currently the Global initiative for COPD suggests the use of long acting beta agonists (LABAs) and long acting muscarinic antagonists (LAMAs) in combination for the majority of COPD patients, thus great interest is associated with the developing of LAMA/LABA fixed combination in the maintenance treatment of stable COPD. Many LAMA/LABA fixed dose combinations have been licensed in different countries and the clinical use of these drugs stimulated the performance of many clinical trials. The purpose of this review is a complete criticism of pharmacological and clinical aspects related to the use of LAMA/LABA single inhalers for the maintenance treatment of stable COPD, with particular mention to the most debated topics and future prospects in the field.
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Affiliation(s)
- Mario Malerba
- Respiratory Medicine, Department of Translational Medicine, University of Eastern Piedmont, Vercelli, Italy
- Respiratory Unit, Sant’Andrea Hospital, Vercelli, Italy
| | - Valentina Foci
- Respiratory Medicine, Department of Translational Medicine, University of Eastern Piedmont, Vercelli, Italy
- Respiratory Unit, Sant’Andrea Hospital, Vercelli, Italy
| | - Filippo Patrucco
- Respiratory Medicine, Department of Translational Medicine, University of Eastern Piedmont, Vercelli, Italy
- Respiratory Unit, Sant’Andrea Hospital, Vercelli, Italy
| | - Patrizia Pochetti
- Respiratory Medicine, Department of Translational Medicine, University of Eastern Piedmont, Vercelli, Italy
- Respiratory Unit, Sant’Andrea Hospital, Vercelli, Italy
| | - Matteo Nardin
- Department of Medicine, Spedali Civili di Brescia, Brescia, Italy
| | - Corrado Pelaia
- Department of Medical and Surgical Sciences, Section of Respiratory Diseases, University “Magna Græcia” of Catanzaro, Catanzaro, Italy
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15
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Abstract
Appropriate selection and correct use of inhalation devices is an integral component in the management of asthma and chronic obstructive pulmonary disease (COPD). It is well known that there are many challenges with the use of inhalers, and no one device suits all patients. Challenges can range from difficulties related to lung disease severity and pulmonary function to physical considerations, including manual dexterity and comorbidities such as arthritis. In terms of device selection and adherence, patient engagement and satisfaction are also important factors to consider. Furthermore, problems with inhaler use can be most evident in children and older patients. Here, we discuss aspects for consideration with commonly used devices, including nebulizers, pressurized metered-dose inhalers, dry powder inhalers, and the soft mist inhaler. As each inhaler offers varying technical properties, a tailored and personalized approach to the selection of the most appropriate device for the patient is highly recommended in order to increase the likelihood of achieving improved disease outcomes and enhance persistence with device adherence. Importantly, education and support is crucial, not only to enable patients to recognize the need for optimal disease management, but also to help them develop good inhaler technique. In addition, health care professionals should also aim to increase their knowledge of the devices they prescribe, and develop systems to ensure that they offer comprehensive support to patients in clinical practice. Considering these aspects, this review discusses potential strategies to help address the challenges of inhaler use in asthma and COPD.
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Affiliation(s)
- Omar S Usmani
- National Heart and Lung Institute (NHLI), Imperial College London and Royal Brompton Hospital, Airways Disease Section, London, UK,
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16
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Buhl R, Hamelmann E. Future perspectives of anticholinergics for the treatment of asthma in adults and children. Ther Clin Risk Manag 2019; 15:473-485. [PMID: 30936709 PMCID: PMC6422409 DOI: 10.2147/tcrm.s180890] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Despite major advances in therapeutic interventions and the availability of detailed treatment guidelines, a high proportion of patients with symptomatic asthma remain uncontrolled. Asthma management is largely guided by the Global Initiative for Asthma (GINA) strategy and is based on a backbone of inhaled corticosteroid (ICS) therapy with the use of additional therapies to achieve disease control. Inhaled long-acting bronchodilators alone and in combination are the preferred add-on treatment options. Although long-acting muscarinic antagonists (LAMAs) are a relatively recent addition to disease management recommendations for asthma, tiotropium has been extensively studied in a large clinical trial program. In Europe and the United States, tiotropium is approved for patients aged ≥6 years and uncontrolled on medium- to high-dose ICS/long-acting β2-agonists at GINA Steps 4 and 5 with a history of exacerbations. Evidence supports the efficacy of tiotropium Respimat® in adults in terms of lung function and asthma control, with a safety profile comparable with that of placebo across a range of asthma severities. Similarly, clinical trials in patients aged 1-17 years have shown improvements in lung function and trends toward improved asthma control. Furthermore, its efficacy makes tiotropium relatively easy to incorporate into routine clinical practice, irrespective of allergic status and without the need for patient phenotyping. Tiotropium is a cost-effective treatment that may offer an important alternative to other, more expensive add-on therapies. This review discusses the potential future position of LAMAs in clinical practice by considering the continuously evolving evidence. Prominence is given to tiotropium, the only LAMA supported by a structured clinical trial program in asthma to date, while also considering other recommended treatment options for patients with uncontrolled asthma. The importance of effective patient/caregiver-clinician communication and shared decision-making in enhancing treatment adherence is also highlighted.
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Affiliation(s)
- Roland Buhl
- Pulmonary Department, Johannes Gutenberg University Hospital Mainz, Mainz, Germany,
| | - Eckard Hamelmann
- Children's Center Bethel, Evangelic Hospital Bethel, Department of Pediatrics, Bielefeld, Germany
- University Children's Hospital, Allergy Center Ruhr, Ruhr University Bochum, Bochum, Germany
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17
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Ding B, Siddiqui S, DePietro M, Petersson G, Martin UJ. Inhaler usability of a pressurized metered dose inhaler and a soft mist inhaler in patients with COPD: A simulated-use study. Chron Respir Dis 2018; 16:1479972318787914. [PMID: 30016880 PMCID: PMC6302969 DOI: 10.1177/1479972318787914] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
The objective of this study was to evaluate task performance and handling errors
with soft mist inhalers (SMIs) or pressurized metered-dose inhalers (pMDIs)
among patients with chronic obstructive pulmonary disease (COPD) experienced
with, but not recently trained in, using these devices. This exploratory,
noninterventional, simulated-use study (D5970R00004) assessed handling/usability
of SMIs and pMDIs in inhaler-experienced patients with COPD (40–78 years;
diagnosis ≥6 months). Patients received a device and instruction-for-use leaflet
but no training and were recorded while performing tasks required for checking
the device, priming, and dosing. Errors that could substantially affect the
lung-delivered dose were considered critical. Sixteen of 61 patients (52% male)
had used SMIs and 55 had used pMDIs. Thirty-one patients received an SMI and 30
a pMDI. Overall, 79% made ≥5 performance errors (SMI 94%; pMDI 63%) and 49% made
≥5 critical errors (SMI 68%; pMDI 30%). All patients made ≥1 error; three (all
pMDI) made no critical errors. Regardless of the device used and previous
inhaler experience, patient-centered training, education, and continuous
retraining on correct inhaler use should be key aspects of routine patient care
in COPD.
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Affiliation(s)
- Bo Ding
- 1 AstraZeneca Gothenburg, Mölndal, Sweden
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18
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Seshadri DR, Ramamurthi A. Nanotherapeutics to Modulate the Compromised Micro-Environment for Lung Cancers and Chronic Obstructive Pulmonary Disease. Front Pharmacol 2018; 9:759. [PMID: 30061830 PMCID: PMC6054931 DOI: 10.3389/fphar.2018.00759] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2017] [Accepted: 06/22/2018] [Indexed: 11/13/2022] Open
Abstract
The use of nanomaterials to modulate the tumor microenvironment has great potential to advance outcomes in patients with lung cancer. Nanomaterials can be used to prolong the delivery time of therapeutics enabling their specific targeting to tumors while minimizing and potentially eliminating cytotoxic effects. Using nanomaterials to deliver small-molecule inhibitors for oncogene targeted therapy and cancer immunotherapy while concurrently enabling regeneration of the extracellular matrix could enhance our therapeutic reach and improve outcomes for patients with non-small cell lung cancer (NSCLC) and chronic obstructive pulmonary disease (COPD). The objective of this review is to highlight the role nanomedicines play in improving and reversing adverse outcomes in the tumor microenvironment for advancing treatments for targeting both diseases.
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Affiliation(s)
- Dhruv R. Seshadri
- Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH, United States
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
| | - Anand Ramamurthi
- Department of Biomedical Engineering, Cleveland Clinic, Cleveland, OH, United States
- Department of Biomedical Engineering, Case Western Reserve University, Cleveland, OH, United States
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19
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Matching Inhaler Devices with Patients: The Role of the Primary Care Physician. Can Respir J 2018; 2018:9473051. [PMID: 29951160 PMCID: PMC5989279 DOI: 10.1155/2018/9473051] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2018] [Accepted: 04/17/2018] [Indexed: 12/29/2022] Open
Abstract
Poor inhaler technique and nonadherence impair the efficacy of medications for asthma and chronic obstructive pulmonary disease (COPD). A range of factors, including age, dexterity, inspiratory capacity, cognitive ability, health literacy, and ethnicity, can impact a patient's ability and intention to use their device. Treatment success can also be influenced by patient preferences and perceptions. Therefore, it is important that healthcare professionals effectively match inhaler devices to individual patients' needs and abilities and empower patients by including them in treatment decisions. Physicians must, therefore, fully understand the characteristics of each device, as well as their patients' demographic characteristics and comorbidities. Following device selection, patient training and education, including a physical demonstration of the device, are key to eliminate any critical errors that may impact on health outcomes. Inhaler technique should be frequently rechecked. This review will examine the important role of primary care providers in the selection of appropriate inhaler devices and provision of training for patients with COPD and asthma to optimize correct inhaler use and adherence. An overview of the key features of available devices and of the factors to consider when selecting devices will be provided in the context of current asthma and COPD guidelines.
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20
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Bosnic-Anticevich SZ. Continued Innovation in Respiratory Care: The Importance of Inhaler Devices. Tuberc Respir Dis (Seoul) 2018; 81:91-98. [PMID: 29589381 PMCID: PMC5874147 DOI: 10.4046/trd.2017.0119] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 11/03/2017] [Accepted: 11/06/2017] [Indexed: 11/30/2022] Open
Abstract
When it comes to the use in inhalers in the management of chronic obstructive pulmonary diseases, there are many options, considerations and challenges, which health care professionals need to address. Considerations for prescribing and dispensing, administering and following up, education, and adherence; all of these factors impact on treatment success and all are intrinsically linked to the device selected. This review brings together relevant evidence, real-life data and practice tools to assist health care professionals in making decisions about the use of inhalers in the management of chronic obstructive pulmonary diseases. It covers some of the key technical device issues to be considered, the evidence behind the role of inhalers in disease control, population studies which link behaviors and adherence to inhaler devices as well as practice advice on inhaler technique education and the advantages and disadvantages in selecting different inhaler devices. Finally, a list of key considerations to aid health care providers in successfully managing the use of inhaler devices are summarized.
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21
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Hira D, Koide H, Nakamura S, Okada T, Ishizeki K, Yamaguchi M, Koshiyama S, Oguma T, Ito K, Funayama S, Komase Y, Morita SY, Nishiguchi K, Nakano Y, Terada T. Assessment of inhalation flow patterns of soft mist inhaler co-prescribed with dry powder inhaler using inspiratory flow meter for multi inhalation devices. PLoS One 2018; 13:e0193082. [PMID: 29462195 PMCID: PMC5819805 DOI: 10.1371/journal.pone.0193082] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 01/22/2018] [Indexed: 11/19/2022] Open
Abstract
The patients’ inhalation flow pattern is one of the significant determinants for clinical performance of inhalation therapy. However, the development of inhalation flow meters for various inhalation devices has been unable to keep up with the increasing number of newly launched inhalation devices. In the present study, we developed simple attachment orifices for the inhalation flow pattern monitoring system, which are suitable for all commercial inhalers, and investigated the efficacy of the system on the clinical inhalation instruction for patients co-prescribed dry powder inhaler (DPI) and soft mist inhaler (SMI). First, we constructed simple attachment orifices that were adjusted for 13 commercial inhalers, and examined the correlation between orifice and inhalation device. Second, the inhalation flow patterns (peak inspiratory flow rate, PIFR; inhalation duration time, DT) of patients prescribed a combination of DPI and SMI were monitored before and after inhalation instruction. The inhalation resistance of commercial inhalers are listed in the following order; Twincaps® > Handihaler® > Swinghaler® = Clickhaler® > Twisthaler® > Turbuhaler® > Jenuair® > Diskus® = Ellipta® > Diskhaler® > Breezhaler® > Respimat® = pMDI. The pressure drop via orifice was significantly correlated with that via the commercial inhaler. For the confirmation, all participants achieved the DPI criterion of PIFR. On the other hand, 4 participants (6 clinical visits) of 10 experimented participants could not achieve the essential criterion of DT (> 1.5 sec) for SMI, but all participants improved their duration time after inhalation instruction by pharmacists (P<0.05). In the present study, we successfully developed simple attachment orifice suitable for 13 commercial inhalation devices. These data suggested that our simple attachment orifices for the inhalation flow pattern monitoring system can detect patients with inadequate inhalation patterns via SMI.
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Affiliation(s)
- Daiki Hira
- Department of Pharmacy, Shiga University of Medical Science Hospital, Otsu, Shiga, Japan
| | - Hiroyoshi Koide
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto, Kyoto, Japan
| | | | - Toyoko Okada
- Hitachi Automotive Systems, Ltd., Isesaki, Gunma, Japan
| | | | - Masafumi Yamaguchi
- Department of Medicine, Division of Respiratory Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
| | | | | | - Kayoko Ito
- Oral Rehabilitation, Niigata University Medical and Dental Hospital, Niigata, Niigata, Japan
| | - Saori Funayama
- Oral Rehabilitation, Niigata University Medical and Dental Hospital, Niigata, Niigata, Japan
| | - Yuko Komase
- Department of Respiratory Internal Medicine, St. Marianna University, School of Medicine, Yokohama-City Seibu Hospital, Yokohama, Kanagawa, Japan
| | - Shin-ya Morita
- Department of Pharmacy, Shiga University of Medical Science Hospital, Otsu, Shiga, Japan
| | - Kohshi Nishiguchi
- Department of Clinical Pharmacy, Faculty of Pharmaceutical Sciences, Kyoto Pharmaceutical University, Kyoto, Kyoto, Japan
| | - Yasutaka Nakano
- Department of Medicine, Division of Respiratory Medicine, Shiga University of Medical Science, Otsu, Shiga, Japan
| | - Tomohiro Terada
- Department of Pharmacy, Shiga University of Medical Science Hospital, Otsu, Shiga, Japan
- * E-mail:
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22
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Sion KYJ, Huisman EL, Punekar YS, Naya I, Ismaila AS. A Network Meta-Analysis of Long-Acting Muscarinic Antagonist (LAMA) and Long-Acting β 2-Agonist (LABA) Combinations in COPD. Pulm Ther 2017; 3:297-316. [PMID: 32026346 PMCID: PMC6964204 DOI: 10.1007/s41030-017-0048-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Indexed: 02/01/2023] Open
Abstract
INTRODUCTION Comparative data on the efficacies of long-acting muscarinic antagonist (LAMA) and long-acting β2-agonist (LABA) combinations for the treatment of moderate-to-very-severe chronic obstructive pulmonary disease (COPD) are limited. The aim of this Bayesian network meta-analysis (NMA) is to assess the relative efficacies of available open combinations (delivered via separate inhalers) and fixed-dose combinations (FDCs, delivered via a single inhaler). METHODS We conducted a systematic literature review with the aim of identifying randomized controlled trials (RCTs) of ≥8-week duration in adults aged ≥40 years with COPD that compared LAMA + LABA combinations with each other, with tiotropium (TIO), or with placebo. Data on changes from baseline in trough forced expiratory volume in 1 s (FEV1) and on St George's Respiratory Questionnaire (SGRQ) total score, the Transition Dyspnea Index (TDI) focal score, and rescue medication use at 12 and 24 weeks were extracted from these RCTs and analyzed using a NMA in a Bayesian framework. RESULTS Data from 44 RCTs were included in the NMA. All FDCs showed improvements relative to placebo in terms of trough FEV1, SGRQ total score, and TDI focal score above clinically relevant thresholds, with the exception of TIO/olodaterol and aclidinium/formoterol, both of which failed to show clinically relevant improvements in SGRQ score at 24 weeks. All FDCs demonstrated reduced rescue medication use versus placebo. Open combinations demonstrated improved efficacy in all outcomes versus placebo, but these improvements did not consistently exceed clinically relevant thresholds for SGRQ and TDI scores. All once-daily FDCs showed improved efficacy versus TIO, but improvements were less consistently observed versus TIO with open dual combinations and combinations containing formoterol or salmeterol administered twice daily. Relative probabilities of improvement between FDCs highlighted potential between-class differences for trough FEV1 but suggested little potential for differences in patient-reported outcomes. CONCLUSION LAMA + LABA combinations generally showed improved outcomes versus placebo and TIO. FDCs appeared to perform better than open dual combinations. A potential effectiveness gradient was observed between FDCs for objectively assessed functional outcomes, although further prospective trials are required to confirm these findings. FUNDING GSK.
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Affiliation(s)
- Katya Y J Sion
- Real World Strategy and Analytics, Mapi Group, Houten, The Netherlands
- Care and Public Health Research Institute, Maastricht University, Maastricht, The Netherlands
| | - Eline L Huisman
- Real World Strategy and Analytics, Mapi Group, Houten, The Netherlands
- Novo Nordisk, Alphen aan den Rijn, The Netherlands
| | - Yogesh S Punekar
- ViiV Healthcare, GlaxoSmithKline, Brentford, Hounslow, Middlesex, UK
| | - Ian Naya
- Respiratory Medicine Development Centre, GlaxoSmithKline, Brentford, Hounslow, Middlesex, UK
| | - Afisi S Ismaila
- Value Evidence and Outcomes, GlaxoSmithKline, 5 Moore Drive, PO Box 13398, Research Triangle Park, NC, 27709-3398, USA.
- Department of Clinical Epidemiology and Biostatistics, McMaster University, Hamilton, ON, Canada.
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23
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Santus P, Radovanovic D, Cristiano A, Valenti V, Rizzi M. Role of nebulized glycopyrrolate in the treatment of chronic obstructive pulmonary disease. Drug Des Devel Ther 2017; 11:3257-3271. [PMID: 29180850 PMCID: PMC5695264 DOI: 10.2147/dddt.s135377] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
In the upcoming years, the proportion of elderly patients with chronic obstructive pulmonary disease (COPD) will increase, according to the progressively aging population and the increased efficacy of the pharmacological treatments, especially considering the management of chronic comorbidities. The issue to prescribe an appropriate inhalation therapy to COPD patients with significant handling or coordination difficulties represents a common clinical experience; in the latter case, the choice of an inadequate inhalation device may jeopardize the adherence to the treatment and eventually lead to its ineffectiveness. Treatment options that do not require particular timing for coordination between activation and/or inhalation or require high flow thresholds to be activated should represent the best treatment option for these patients. Nebulized bronchodilators, usually used only in acute conditions such as COPD exacerbations, could fulfill this gap, enabling an adequate drug administration during tidal breathing and without the need for patients' cooperation. However, so far, only short-acting muscarinic antagonists have been available for nebulization. Recently, a nebulized formulation of the inhaled long-acting muscarinic antagonist glycopyrrolate, delivered by means of a novel proprietary vibrating mesh nebulizer closed system (SUN-101/eFlow®), has progressed to Phase III trials and is currently in late-stage development as an option for maintenance treatment in COPD. The present critical review describes the current knowledge about the novel nebulizer technology, the efficacy, safety, and critical role of nebulized glycopyrrolate in patients with COPD. To this end, PubMed, ClinicalTrials.gov, Embase, and Cochrane Library have been searched for relevant papers. According to the available results, the efficacy and tolerability profile of nebulized glycopyrrolate may represent a valuable and dynamic treatment option for the chronic pharmacological management of patients with COPD.
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Affiliation(s)
- Pierachille Santus
- Department of Biomedical and Clinical Sciences (DIBIC), University of Milan, Division of Respiratory Diseases, “L. Sacco” Hospital, ASST Fatebenefratelli Sacco, Milan, Italy
| | - Dejan Radovanovic
- Department of Biomedical and Clinical Sciences (DIBIC), University of Milan, Division of Respiratory Diseases, “L. Sacco” Hospital, ASST Fatebenefratelli Sacco, Milan, Italy
| | - Andrea Cristiano
- Department of Biomedical and Clinical Sciences (DIBIC), University of Milan, Division of Respiratory Diseases, “L. Sacco” Hospital, ASST Fatebenefratelli Sacco, Milan, Italy
| | - Vincenzo Valenti
- Department of Health Bioscience, University of Milan – Respiratory Unit, Policlinico di San Donato, IRCCS – San Donato Milanese, Milan, Italy
| | - Maurizio Rizzi
- Department of Biomedical and Clinical Sciences (DIBIC), University of Milan, Division of Respiratory Diseases, “L. Sacco” Hospital, ASST Fatebenefratelli Sacco, Milan, Italy
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Sharma G, Mahler DA, Mayorga VM, Deering KL, Harshaw O, Ganapathy V. Prevalence of Low Peak Inspiratory Flow Rate at Discharge in Patients Hospitalized for COPD Exacerbation. CHRONIC OBSTRUCTIVE PULMONARY DISEASES-JOURNAL OF THE COPD FOUNDATION 2017; 4:217-224. [PMID: 28848933 DOI: 10.15326/jcopdf.4.3.2017.0183] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Background: Low peak inspiratory flow rate (PIFR) (<60 L/min) among patients with chronic obstructive pulmonary disease (COPD) may result in ineffective medication inhalation, leading to poor bronchodilation. Objective: The objectives of this analysis were to evaluate the prevalence of low PIFR at the time of discharge from a COPD-related hospitalization and to examine the real-world treatment patterns and rehospitalizations by PIFR. Methods: Patients at 7 sites in the United States were screened for enrollment at hospital discharge. PIFR was measured using the InCheckTM DIAL to simulate resistance of the DISKUS® dry powder inhaler (DPI). An equal number of patients were enrolled into low PIFR (<60 L/min) or normal PIFR (≥60 L/min) cohorts. Demographics, COPD-related clinical characteristics, health status, treatment and rehospitalization data were collected. Results: Mean PIFR was 71±22.12 L/min among 268 screened patients; 31.7% (n=85) of patients had low PIFR. Among all enrolled patients (n=170), the low PIFR cohort was older (66.2±10.04 years versus 62.1±9.41 years, p=0.006) and more likely to be female (61.2% versus 42.4%, p=0.014). There was an increase in DPI use at discharge, compared with admission, in the low PIFR cohort (62.4% versus 70.6%, p=0.020). The incidences of all-cause rehospitalization up to 180 days were similar between the low and normal PIFR cohorts. Conclusions: At discharge following hospitalization for an exacerbation of COPD, approximately one-third of patients had a PIFR <60 L/min. More patients with a low PIFR were discharged with a DPI medication compared with use at admission. There was no difference in the rehospitalization rates by PIFR.
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Affiliation(s)
| | - Donald A Mahler
- Geisel School of Medicine at Dartmouth, Hanover, New Hampshire and Valley Regional Hospital, Claremont, New Hampshire
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25
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Dal Negro RW, Longo P, Ziani OV, Bonadiman L, Turco P. Instant velocity and consistency of emitted cloud change by the different levels of canister filling with Metered Dose Inhalers (MDIs), but not with Soft Mist Inhalers (SMIs): a bench study. Multidiscip Respir Med 2017; 12:13. [PMID: 28560037 PMCID: PMC5447303 DOI: 10.1186/s40248-017-0096-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2017] [Accepted: 04/26/2017] [Indexed: 12/04/2022] Open
Abstract
Background Inhalation is the preferred route for respiratory drug delivery, but several factors contribute to the variability of the respirable dose fraction. Instant velocity and the dynamic characteristics of the droplet cloud represent crucial factors. Aim was to measure and compare the instant velocity and the consistency of emitted cloud from five different MDIs (A - Salbutamol sulphate 100mcg, GSK; B - Salbutamol sulphate 100mcg, Valeas; C - Salmeterol xinafoate/Fluticasone propionate 25/125mcg, GSK; D - Formoterol fumarate/Bechlomethasone propionate 6/100mcg, Chiesi; E - Formoterol fumarate/Fluticasone dipropionate 5/125mcg, Mundipharma) and one SMI (Tiotropium bromide 5mcg, Boehringer Ingelheim), at different distance from the nozzle and canister filling. Methods Measurements were made at 90, 50, and 10% of canister filling, and at 5, 10, and 20 cm from the nozzle, for a total of 972 puffs. A high speed video photography protocol was adopted and high speed cameras (1.200 frames/sec.) were used. Data were acquired by means of specialized softwares. Temperature, humidity, and vibrations occurrence were strictly controlled during measurements. Statistics: Anova and p < 0.05 were accepted as the minimum significance level. Results MDIs generated different Instant velocities: MDI B generated the highest, while MDI A the lowest. As expected, velocity decreased in proportion to the distance from the nozzle. Except with MDI C, instant velocity decreased significantly over the first 50% of canister emptying, but dropped by >33% at 90% of emptying with all other MDIs (p < 0–037; p < 0.001; p < 0.005, and p < 0.001, respectively). Instant velocity was extremely lower (p < 0.001) and constant for all levels of canister filling (p = ns) with SMI. All MDIs had a very fast jet phase, ranging 0.01–0.03 s at 10 cm, and 0.03–0.05 s at 20 cm from the nozzle, without any significant difference from each other (p = ns). MDIs generated a cloud similarly tight (p = ns) at 10 and 20 cm from the nozzle, while it was extremely wider and constant with the SMI (p = 0–001). Also the cloud turbulence was minimized during the SMI emission. Discussion and Conclusions MDIs are characterized by a substantial variability in both their instant velocity and consistency of the emitted cloud at different levels of canister filling. SMI generates a much slower soft mist cloud which is constantly homogeneous and independent of canister emptying. These peculiarities assessed at bench are suggesting a higher dose consistency and a much more effective therapeutic performance also in real life.
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Affiliation(s)
- Roberto W Dal Negro
- National Centre for Respiratory Pharmacoeconomics & Pharmacoepidemiology - CESFAR, Verona, Italy
| | - Pietro Longo
- National Centre for Respiratory Pharmacoeconomics & Pharmacoepidemiology - CESFAR, Verona, Italy
| | | | - Luca Bonadiman
- National Centre for Respiratory Pharmacoeconomics & Pharmacoepidemiology - CESFAR, Verona, Italy
| | - Paola Turco
- Research & Clinical Governance, Verona, Italy
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Lee HW, Kim HJ, Lee CH. The impact of olodaterol on the risk of mortality and serious adverse events: a systematic review and meta-analysis. Br J Clin Pharmacol 2017; 83:1166-1175. [PMID: 27957746 DOI: 10.1111/bcp.13210] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2016] [Revised: 10/21/2016] [Accepted: 12/09/2016] [Indexed: 01/27/2023] Open
Abstract
AIMS Olodaterol is a novel inhaled long-acting β2 -agonist (LABA) that showed efficacy as a bronchodilator for patients with chronic obstructive pulmonary disease (COPD) and asthma. However, it is unclear whether olodaterol reduces mortality; the safety issues of olodaterol have not been fully evaluated. METHODS Randomized controlled trials comparing olodaterol with placebo for patients with COPD or asthma, which evaluated mortality or serious adverse events, were included. Eighteen trials reporting mortality and 26 trials reporting nonfatal serious adverse events were included. RESULTS Inhaled olodaterol did not reduce the risk of mortality (Peto fixed OR 1.31; 95% CI 0.90-1.89) and had no significant impacts on nonfatal serious adverse events (Peto fixed OR 1.03; 95% CI 0.91-1.15). CONCLUSIONS Inhaled olodaterol has no impact on mortality risk in clinical trials conducted on patients with COPD and asthma. However, the interpretation is limited by a high OR (1.31) and a wide CI that includes the hazardous effect. We could not find any relationship between inhaled olodaterol use and nonfatal serious adverse events.
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Affiliation(s)
- Hyun Woo Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Hyung-Jun Kim
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
| | - Chang-Hoon Lee
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Seoul National University Hospital, 101 Daehak-Ro, Jongno-Gu, Seoul, 03080, Republic of Korea
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27
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Abstract
Current guidelines recommend inhaled pharmacologic therapy as the preferred route of administration for treating COPD. Bronchodilators (β2-agonists and antimuscarinics) are the mainstay of pharmacologic therapy in patients with COPD, with long-acting agents recommended for patients with moderate to severe symptoms or those who are at a higher risk for COPD exacerbations. Dry powder inhalers and pressurized metered dose inhalers are the most commonly used drug delivery devices, but they may be inadequate in various clinical scenarios (eg, the elderly, the cognitively impaired, and hospitalized patients). As more drugs become available in solution formulations, patients with COPD and their caregivers are becoming increasingly satisfied with nebulized drug delivery, which provides benefits similar to drugs delivered by handheld inhalers in both symptom relief and improved quality of life. This article reviews recent innovations in nebulized drug delivery and the important role of nebulized therapy in the treatment of COPD.
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Affiliation(s)
- Donald P Tashkin
- Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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28
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Dahl R, Kaplan A. A systematic review of comparative studies of tiotropium Respimat® and tiotropium HandiHaler® in patients with chronic obstructive pulmonary disease: does inhaler choice matter? BMC Pulm Med 2016; 16:135. [PMID: 27724909 PMCID: PMC5057252 DOI: 10.1186/s12890-016-0291-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2016] [Accepted: 08/18/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND In many countries worldwide, the long-acting anticholinergic drug tiotropium is available as a dry powder formulation delivered by means of the HandiHaler® inhalation device and as an aqueous solution delivered via the Respimat® Soft Mist™ Inhaler. Tiotropium HandiHaler® is a single-dose, dry powder, breath-actuated inhaler that provides delivered doses and lung deposition of tiotropium that are, over a wide range, not influenced by the severity of chronic obstructive pulmonary disease (COPD). Tiotropium Respimat® is a propellant-free, multi-dose inhaler that delivers a metered dose of medication as a fine, slow-moving, long-lasting soft mist, independently of patient inspiratory effort. The high fine-particle fraction of droplets produced by the Respimat® inhaler optimizes the efficiency of drug delivery to the lungs. METHODS To help inform the choice of tiotropium inhaler for prescribers and patients, this systematic review summarizes the available pharmacokinetic, efficacy and safety data from comparative studies of tiotropium Respimat® and tiotropium HandiHaler® in COPD, focusing on the licensed once-daily doses of 5 and 18 μg, respectively. Data sources reviewed include publications and abstracts identified from database searches. RESULTS Published evidence from comparative studies suggests that tiotropium Respimat® 5 μg and tiotropium HandiHaler® 18 μg provide similar clinical outcomes in patients with COPD. CONCLUSIONS The findings indicate that physicians can base their decision about an inhaler for tiotropium on factors other than efficacy or safety. These could be patient preference for a particular inhaler, ease of use and the efficiency of drug delivery, with the aim of optimizing adherence and clinical outcomes with long-term tiotropium maintenance therapy.
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Affiliation(s)
- Ronald Dahl
- Odense University Hospital, Odense, Denmark.
| | - Alan Kaplan
- Family Physician Airways Group of Canada, Richmond Hill, ON, Canada
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Tan CK, Say GQ, Geake JB. Long-term safety of tiotropium delivered by Respimat ® SoftMist™ Inhaler: patient selection and special considerations. Ther Clin Risk Manag 2016; 12:1433-1444. [PMID: 27703365 PMCID: PMC5036544 DOI: 10.2147/tcrm.s109011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Tiotropium bromide is a long-acting inhaled muscarinic antagonist used in patients with chronic respiratory disease. It has been available since 2002 as a single-dose dry powder formulation via the HandiHaler® dry powder inhaler (DPI) device, and since 2007 as the Respimat® SoftMist™ Inhaler (SMI). The latter is a novel method of medication delivery that utilizes a multidose aqueous solution to deliver the drug as a fine mist. Potential benefits include more efficient drug deposition throughout the respiratory tract, reduced systemic exposure, and greater ease of use and patient satisfaction compared with the use of HandiHaler DPI. Although tiotropium bromide delivered via the HandiHaler DPI has been clearly shown to improve lung function, dyspnea, and quality of life and to reduce exacerbations in patients with chronic obstructive pulmonary disease (COPD), there is accumulating evidence regarding the use of tiotropium HandiHaler in other respiratory diseases characterized by airflow limitation, such as asthma and cystic fibrosis. Developed more recently, tiotropium delivered via the Respimat SMI appears to have a similar efficacy and safety profile to the HandiHaler DPI, and early data raising the possibility of safety concerns with its use in COPD have been refuted by more recent evidence. The benefits over the HandiHaler DPI, however, remain unclear. This paper will review the evidence for tiotropium delivered via the Respimat SMI inhaler, in particular as an alternative to the HandiHaler DPI, and will focus on the safety profile for each of the chronic lung diseases in which it has been trialed, as well as an approach to appropriate patient selection.
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Affiliation(s)
- Ching Kuo Tan
- Department of Respiratory Medicine, Lyell McEwin Hospital, Elizabeth Vale, SA, Australia
| | - Gui Quan Say
- Department of Respiratory Medicine, Lyell McEwin Hospital, Elizabeth Vale, SA, Australia
| | - James B Geake
- Department of Respiratory Medicine, Lyell McEwin Hospital, Elizabeth Vale, SA, Australia
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30
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Dal Negro RW, Povero M. Dry-powder inhalers in patients with persistent airflow limitation: usability and preference. Multidiscip Respir Med 2016; 11:31. [PMID: 27597888 PMCID: PMC5011351 DOI: 10.1186/s40248-016-0068-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 07/12/2016] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Inhalation devices represent per sé critical factors because they can affect the therapeutic outcomes independently of the drug used. The role of patients' usability and preference (PUP) for Dry Powder Inhalers (DPIs) is high indeed because they can influence the extent of the adherence to treatment and the therapeutic outcomes. Aim of the study was to assess and compare the PUP of three different DPIs in out-patients with persistent airflow limitation due to asthma or COPD. METHODS The PUP of three different DPIs (Breezhaler; Genuair; Handihaler) were investigated by means of the Handling Questionnaire in out-patients with persistent airflow limitation needing an inhalation therapy. Patients had to report their preference before and after the nurse's instruction on the handling of each device. The nurse had also to note the critical steps during the patient's procedure for actuation; to count the number of attempts needed for actuating the device properly, and to measure the time (in sec.) required for these procedures. Data were collected up to three attempts per device. STATISTICS Welch test was used for normal distributed variables, while the Wilcoxon test for not normal distributed variables. The χ (2) test and the ANOVA test were also used. Univariate and multivariate regressions were also performed in order to investigate the effect of patients' characteristics and of technical differences of each device on their proper use. RESULTS Three hundred thirty-three consecutive out-patients (age range 55-58 years, and well matched for gender), with persistent airway limitation of different severity were investigated, suffering from bronchial asthma (n = 175) or from chronic obstructive pulmonary disease (COPD) (n = 158). In particular, 127 patients (38 %) tested the three DPIs, while 110 (33 %) tested Breezhaler and Genuair, and 96 (29 %) Breezhaler and Handihaler. More than 50 % of patients who tested all devices preferred the Genuair and perceived this device as the easiest to use. The nurse's judgement confirmed their opinion. When compared to the other two DPIs, Genuair proved the least problematic either according to the patients' judgement and to the nurse's opinion. Mean number of attempts aimed to achieving the first proper actuation was lower with Genuair than with Breezhaler and Handihaler (1.5 vs 2.5-2.6, p < 0.0001). Finally, Genuair also proved the easiest to use and the least problematic according to the nurse judgement (0.0001), the most easily learned (0.0001), and that one with a successful rate of more than 56 % at the first attempt. Breezhaler and Handihaler needed an average of about one additional attempt to be used properly (p < 0.0001), and their usability proved significantly more difficult (OR of successful rate between 0.15 and 0.17, p < 0.001). In general, older patients needed more attempts to perform their first proper inhalation; their successful rate was lower, and they needed more time to learn how to use devices properly: with Genuair these differences were minimized. CONCLUSIONS The possibility of grading objectively the performance of different DPIs in terms of their usability and therapeutic convenience in daily life represents a crucial operational opportunity to pursue. To note that a substantial discrepancy exists between the patients' belief "at glance" and the patients' effective usability with can be registered with some devices. From a general point of view, devices requiring less manual actions for their actuation confirmed their better usability and proper handling after less attempts. In particular, Genuair came out as the most preferred DPI also when several different aspects of preference and usability are assessed objectively and compared.
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Affiliation(s)
- Roberto W Dal Negro
- National Centre for Respiratory Pharmacoeconomics & Pharmacoepidemiology - CESFAR, Verona, Italy
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31
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Dekhuijzen PNR, Lavorini F, Usmani OS. Patients' perspectives and preferences in the choice of inhalers: the case for Respimat(®) or HandiHaler(®). Patient Prefer Adherence 2016; 10:1561-72. [PMID: 27574405 PMCID: PMC4993394 DOI: 10.2147/ppa.s82857] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
Poor inhaler technique hampers the efficacy of drug therapy in asthma and chronic obstructive pulmonary disease. Not only does this affect individual patient care, but it also impacts on the wider health care economics associated with these conditions. Treatment guidelines recommend a systematic approach to drug class selection; however, standardization of inhaler selection is currently difficult owing to the complexity of the interaction between the inhaler device and the patient. Specifically, individual patient preference can influence how successful a treatment is overall. This article reviews inhaler devices from the patient perspective, with a particular focus on the dry powder inhaler HandiHaler(®) and Respimat(®) Soft Mist™ Inhaler. It discusses factors that influence device preference and treatment compliance and reviews tools that can aid health care professionals to better match inhaler devices to individual patients' needs.
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Affiliation(s)
| | - Federico Lavorini
- Department of Experimental and Clinical Medicine, Careggi University Hospital, Florence, Italy
| | - Omar S Usmani
- National Heart and Lung Institute, Imperial College London and Royal Brompton Hospital, London, UK
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32
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Dal Negro RW, Povero M. The economic impact of educational training assessed by the Handling Questionnaire with three inhalation devices in asthma and Chronic Obstructive Pulmonary Disease patients. CLINICOECONOMICS AND OUTCOMES RESEARCH 2016; 8:171-6. [PMID: 27274291 PMCID: PMC4869654 DOI: 10.2147/ceor.s104066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Background The usability of inhalation devices depends on several factors, eg, the drug to inhale, device handling, and patients’ training. Usability is then presumed to have economic consequences. Aim To assess and compare the cost of patients’ training for proper usability of Breezhaler and Genuair (both dry powder inhalers) and Respimat (a soft mist inhaler) in asthma and chronic obstructive pulmonary disease (COPD) outpatients. Methods The acceptance and handling of the three devices were investigated by means of the Handling Questionnaire. The time spent in specific training for ensuring a proper actuation and the corresponding costs were also calculated. Linear and logistic regressions were used in order to investigate the factors influencing proper handling of the devices. A significance level of P<0.05 was accepted. Results According to both the patients’ and the nurse’s judgments, Genuair and Respimat were perceived as the easiest devices to use, while Breezhaler required the highest number of attempts for achieving the first proper actuation (2.6 vs 1.6; P<0.0001). The total training cost per patient (including the nurse’s time for demonstration and that for attending the patients’ maneuvers) was €1.38±€1.21. Breezhaler was found to be the most expensive as the cost per patient was €2.35±€1.26, which was three to four times higher than that of Genuair and Respimat (both devices involved a cost of <€1 per patient, with negligible differences between each other). Asthma and COPD patients showed a similar trend, with better outcomes reported for asthma patients probably due to lower age. Conclusion Substantial differences were found to exist in patients’ acceptability and handling of the three devices. The economic impact of specific training was also different and strictly related to the comprehension of the procedure for actuation of each device. Respimat as a soft mist inhaler and Genuair as an metered-dose inhaler proved to be the most convenient in economic terms also.
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Affiliation(s)
- Roberto W Dal Negro
- National Centre for Respiratory Phamacoeconomics and Pharmacoepidemiology - CESFAR, Verona, Italy
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33
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Dal Negro RW, Povero M. Acceptability and preference of three inhalation devices assessed by the Handling Questionnaire in asthma and COPD patients. Multidiscip Respir Med 2016; 11:7. [PMID: 26865979 PMCID: PMC4748681 DOI: 10.1186/s40248-016-0044-5] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 01/12/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND The patients' criteria of preference for inhalation devices can affect the extent of their adherence to treatment and outcomes. Aim of this study was to assess and compare the patients' preference and acceptability (PPA) for Breezhaler and Genuair (both Dry Powder Inhalers), and for Respimat (a Soft Mist Inhaler) in asthma and COPD out-patients by means of the Handling Questionnaire. METHODS The Handling Questionnaire is a validated instrument which allows the investigation of different domains of PPA; it also takes into account the patients' age and gender, together with their previous experience with the inhalation devices and their previous education approach to them. Differences in terms of preference, acceptance and usability were assessed by linear and logistic regressions in order to evaluate factors influencing the proper actuation. RESULTS AND DISCUSSION Data from 333 patients were collected: Genuair and Respimat were the most liked and perceived as the easiest to use at glance by patients, but also as the least problematic according to the patients' and nurse's judgments. Mean number of attempts for achieving the first effective actuation was the highest with Breezhaler (2.6 vs 1.6; p <0.0001). Linear regressions showed that longer the explanation, higher was the number of attempts to the first proper actuation (0.58 additional attempts every 10 s increase in the first explanation, p <0.0001). Devices requiring less manoeuvres for the actuation were used properly after less attempts (0.38 increase in the number of attempts every additional manoeuvres, p <0.0001). Respimat proved to be the most indicated in COPD patients since it was the most liked and its successful rate at first attempt was the highest. Logistic regressions confirmed these data. Previous experience with DPIs and/or MDIs did not affect the patient preference and acceptability, independently whether suffering from asthma or COPD. CONCLUSIONS Substantial differences are existing in patient's preference and acceptability for inhalation devices, mainly related to the handling and the understanding of the different devices.
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Affiliation(s)
- Roberto W Dal Negro
- National Centre for Respiratory Phamacoeconomics & Pharmacoepidemiology, CESFAR, Verona, Italy
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34
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Tiotropium Respimat(®) Soft Mist™ inhaler: a review of its use in chronic obstructive pulmonary disease. Drugs 2015; 74:1801-16. [PMID: 25300412 DOI: 10.1007/s40265-014-0307-4] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
The long-acting anticholinergic agent tiotropium bromide (Spiriva(®)) is available as a solution for inhalation via Respimat(®) Soft Mist™ Inhaler in the EU and various other countries for the treatment of chronic obstructive pulmonary disease (COPD). With the Respimat(®) Soft Mist™ Inhaler there is improved lung deposition of drug (allowing a reduced dosage compared with tiotropium HandiHaler(®)), the delivered drug dose is independent of inspiratory effort and the prolonged duration of the aerosol cloud should make the co-ordination of actuation and inhalation easier. In patients with COPD, tiotropium Respimat(®) improved lung function, COPD exacerbations, health-related quality of life and dyspnoea and was at least as effective as tiotropium HandiHaler(®). Tiotropium Respimat(®) was generally well tolerated in patients with COPD, with anticholinergic adverse events among the most commonly reported adverse events. In the TIOSPIR trial, tiotropium Respimat(®) was noninferior to tiotropium HandiHaler(®) in terms of all-cause mortality, and the risk of cardiovascular mortality or major adverse cardiovascular events did not significantly differ between the two treatment groups. In conclusion, tiotropium Respimat(®) Soft Mist™ Inhaler is a useful option for the treatment of patients with COPD.
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35
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Muruganandan S, Jayaram L. Profile of a fixed-dose combination of tiotropium/olodaterol and its potential in the treatment of COPD. Int J Chron Obstruct Pulmon Dis 2015; 10:1179-89. [PMID: 26124657 PMCID: PMC4476436 DOI: 10.2147/copd.s54154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is a progressive, debilitating disorder that results in frequent exacerbations and impacts quality of life. It represents a growing burden of health care cost, both from societal and economic perspectives. Short- and long-acting bronchodilators remain the mainstay of therapy in COPD patients. New fixed-dose combination inhalers with novel pharmacological combinations of long-acting β2-agonists and muscarinic antagonists and delivered once-daily through a variety of devices are currently being developed and licensed for the treatment of COPD. There is mounting research suggesting that combining a fixed dose of a β2-agonist and a muscarinic antagonist achieves better bronchodilation and clinical outcomes compared with either agent alone. These once-daily dosing inhalers are anticipated to impact favorably on patient preference and compliance. This review examines the fixed-dose combination of tiotropium bromide and olodaterol delivered by a Respimat(®) Soft Mist™ inhaler at doses of 2.5/5 μg and 5/5 μg in moderate-to-very-severe COPD, and its potential role in COPD compared with other long-acting β2-agonist with long-acting muscarinic antagonist combinations and delivery devices.
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Affiliation(s)
- Sanjeevan Muruganandan
- Department of Respiratory and Sleep Medicine, Austin Health, Melbourne, Victoria, Australia
| | - Lata Jayaram
- Department of Respiratory and Sleep Medicine, Western Health, Melbourne, Victoria, Australia
- University of Melbourne, Melbourne, Victoria, Australia
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Trotta F, Da Cas R, Rajevic M, Rossi M, Traversa G. Risk factors influencing the prescription of tiotropium Respimat formulation: a population-based cohort study. BMJ Open 2015; 5:e006619. [PMID: 26009573 PMCID: PMC4452750 DOI: 10.1136/bmjopen-2014-006619] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
OBJECTIVES The study aims at investigating the influence of several factors on the probability of receiving one of the two tiotropium formulations (Respimat or Handihaler). DESIGN Drug utilisation study. SETTING All residents in the Region Umbria, Italy, aged ≥45 years, who received prescriptions of tiotropium during 2011-2012. PARTICIPANTS Two groups of patients were studied: (1) incident users of the two tiotropium formulations (ie, without tiotropium prescriptions in the previous 6 months); (2) switchers from Handihaler to Respimat. Users of the two formulations were compared with regard to baseline characteristics and medical history. The adjusted OR of receiving Respimat was estimated for several factors. RESULTS Incident users of the two formulations (4390 participants) had similar characteristics. They were older and with more comorbidities than patients included in randomised control trials (RCTs). Among prevalent users of Handihaler, the probability of switching to Respimat was greater in patients with severe respiratory disease (users of ≥4 respiratory drugs: adjusted OR=4.62; 95% CI 2.46 to 8.69) and among β-blocker users (adjusted OR=1.76; 95% CI 1.13 to 2.75). Age above 75 years and lipid-lowering drug use reduced the probability of switching. A positive association was also found between neurological conditions and the use of Respimat. CONCLUSIONS When starting tiotropium treatment, the choice between the two formulations is weakly affected by comorbidities and chronic obstructive pulmonary disease severity. Instead, these characteristics influence the likelihood of switching from Handihaler to Respimat. Since tiotropium users in clinical practice are more severe than those included in RCTs, further aetiological studies are needed to compare the safety profile of the two formulations in routine care.
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Affiliation(s)
- Francesco Trotta
- Pharmacovigilance Office, Italian Medicines Agency, Rome, Italy
- Pharmacoepidemiology Unit, National Centre for Epidemiology, Italian National Institute of Health, Rome, Italy
| | - Roberto Da Cas
- Pharmacoepidemiology Unit, National Centre for Epidemiology, Italian National Institute of Health, Rome, Italy
| | - Maja Rajevic
- Pharmaceutical Sciences, Drug Chemistry and Technologies Department, “La Sapienza” University, Rome, Italy
| | - Mariangela Rossi
- Unit for Pharmaceutical Governance, General Directorate for Health, Umbria Region, Perugia, Italy
| | - Giuseppe Traversa
- Pharmacoepidemiology Unit, National Centre for Epidemiology, Italian National Institute of Health, Rome, Italy
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Slebos DJ, Klooster K, Koegelenberg CFN, Theron J, Styen D, Valipour A, Mayse M, Bolliger CT. Targeted lung denervation for moderate to severe COPD: a pilot study. Thorax 2015; 70:411-9. [PMID: 25739911 PMCID: PMC4413833 DOI: 10.1136/thoraxjnl-2014-206146] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 02/09/2015] [Accepted: 02/12/2015] [Indexed: 01/08/2023]
Abstract
BACKGROUND Parasympathetic pulmonary nerves release acetylcholine that induces smooth muscle constriction. Disruption of parasympathetic pulmonary nerves improves lung function and COPD symptoms. AIMS To evaluate 'targeted lung denervation' (TLD), a novel bronchoscopic therapy based on ablation of parasympathetic pulmonary nerves surrounding the main bronchi, as a potential therapy for COPD. METHODS This 1-year, prospective, multicentre study evaluated TLD in patients with COPD forced expiratory volume in 1 s (FEV1)/forced vital capacity (FVC) (FEV1/FVC <0.70; FEV1 30%-60% predicted). Patients underwent staged TLD at 20 watts (W) or 15 W following baseline assessment off bronchodilators. Assessments were repeated on tiotropium before treatment and off bronchodilators at 30, 90, 180, 270 and 365 days after TLD. The primary endpoint was freedom from documented and sustained worsening of COPD directly attributable to TLD to 1 year. Secondary endpoints included technical feasibility, change in pulmonary function, exercise capacity, and quality of life. RESULTS Twenty-two patients were included (n=12 at 20 W, n=10 at 15 W). The procedures were technically feasible 93% of the time. Primary safety endpoint was achieved in 95%. Asymptomatic bronchial wall effects were observed in 3 patients at 20 W. The clinical safety profiles were similar between the two energy doses. At 1 year, changes from baseline in the 20 W dose compared to the 15 W dose were: FEV1 (+11.6%±32.3 vs +0.02%±15.1, p=0.324), submaximal cycle endurance (+6.8 min±12.8 vs 2.6 min±8.7, p=0.277), and St George's Respiratory Questionnaire (-11.1 points ±9.1 vs -0.9 points ±8.6, p=0.044). CONCLUSIONS Bronchoscopic TLD, based on the concept of ablating parasympathetic pulmonary nerves, was feasible, safe, and well tolerated. Further investigation of this novel therapy is warranted. TRIAL REGISTRATION NUMBER NCT01483534.
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Affiliation(s)
- Dirk-Jan Slebos
- Department of Pulmonary diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Karin Klooster
- Department of Pulmonary diseases, University of Groningen, University Medical Center Groningen, Groningen, The Netherlands
| | - Coenraad F N Koegelenberg
- Faculty of Medicine and Health Sciences, Division of Pulmonology, Department of Medicine, Stellenbosch University, Cape Town, South Africa
| | | | - Dorothy Styen
- Faculty of Medicine and Health Sciences, Division of Pulmonology, Department of Medicine, Stellenbosch University, Cape Town, South Africa
| | - Arschang Valipour
- Department of Respiratory and Critical Care Medicine, Ludwig-Boltzmann-Institute for COPD and Respiratory Epidemiology, Otto-Wagner-Spital, Vienna, Austria
| | | | - Chris T Bolliger
- Faculty of Medicine and Health Sciences, Division of Pulmonology, Department of Medicine, Stellenbosch University, Cape Town, South Africa
- Medi Clinic Panorama, Cape Town, South Africa
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Kamin W, Frank M, Kattenbeck S, Moroni-Zentgraf P, Wachtel H, Zielen S. A Handling Study to Assess Use of the Respimat(®) Soft Mist™ Inhaler in Children Under 5 Years Old. J Aerosol Med Pulm Drug Deliv 2015; 28:372-81. [PMID: 25844687 PMCID: PMC4601632 DOI: 10.1089/jamp.2014.1159] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022] Open
Abstract
Background: Respimat® Soft Mist™ Inhaler (SMI) is a hand-held device that generates an aerosol with a high, fine-particle fraction, enabling efficient lung deposition. The study objective was to assess inhalation success among children using Respimat SMI, and the requirement for assistance by the parent/caregiver and/or a valved holding chamber (VHC). Methods: This open-label study enrolled patients aged <5 years with respiratory disease and history of coughing and/or recurrent wheezing. Patients inhaled from the Respimat SMI (air only; no aerosol) using a stepwise configuration: “1” (dose released by child); “2” (dose released by parent/caregiver), and “3” (Respimat SMI with VHC, facemask, and parent/caregiver help). Co-primary endpoints included the ability to perform successful inhalation as assessed by the investigators using a standardized handling questionnaire and evaluation of the reasons for success. Inhalation profile in the successful handling configuration was verified with a pneumotachograph. Patient satisfaction and preferences were investigated in a questionnaire. Results: Of the children aged 4 to <5 years (n=27) and 3 to <4 years (n=30), 55.6% and 30.0%, respectively, achieved success without a VHC or help; with assistance, another 29.6% and 10.0%, respectively, achieved success, and the remaining children were successful with VHC. All children aged 2 to <3 years (n=20) achieved success with the Respimat SMI and VHC. Of those aged <2 years (n=22), 95.5% had successful handling of the Respimat SMI with VHC and parent/caregiver help. Inhalation flow profiles generally confirmed the outcome of the handling assessment by the investigators. Most parent/caregiver and/or child respondents were satisfied with operation, instructions for use, handling, and ease of holding the Respimat SMI with or without a VHC. Conclusions: The Respimat SMI is suitable for children aged <5 years; however, children aged <5 years are advised to add a VHC to complement its use.
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Affiliation(s)
- Wolfgang Kamin
- 1 Children's Hospital , Evangelisches Krankenhaus Hamm, Hamm, Germany
| | | | | | | | | | - Stefan Zielen
- 3 Children's Hospital, Allergology, Pneumology and Cystic Fibrosis, Goethe-University , Frankfurt am Main, Germany
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Kleinstreuer C, Feng Y, Childress E. Drug-targeting methodologies with applications: A review. World J Clin Cases 2014; 2:742-756. [PMID: 25516850 PMCID: PMC4266823 DOI: 10.12998/wjcc.v2.i12.742] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2014] [Revised: 08/23/2014] [Accepted: 10/16/2014] [Indexed: 02/05/2023] Open
Abstract
Targeted drug delivery to solid tumors is a very active research area, focusing mainly on improved drug formulation and associated best delivery methods/devices. Drug-targeting has the potential to greatly improve drug-delivery efficacy, reduce side effects, and lower the treatment costs. However, the vast majority of drug-targeting studies assume that the drug-particles are already at the target site or at least in its direct vicinity. In this review, drug-delivery methodologies, drug types and drug-delivery devices are discussed with examples in two major application areas: (1) inhaled drug-aerosol delivery into human lung-airways; and (2) intravascular drug-delivery for solid tumor targeting. The major problem addressed is how to deliver efficiently the drug-particles from the entry/infusion point to the target site. So far, most experimental results are based on animal studies. Concerning pulmonary drug delivery, the focus is on the pros and cons of three inhaler types, i.e., pressurized metered dose inhaler, dry powder inhaler and nebulizer, in addition to drug-aerosol formulations. Computational fluid-particle dynamics techniques and the underlying methodology for a smart inhaler system are discussed as well. Concerning intravascular drug-delivery for solid tumor targeting, passive and active targeting are reviewed as well as direct drug-targeting, using optimal delivery of radioactive microspheres to liver tumors as an example. The review concludes with suggestions for future work, considereing both pulmonary drug targeting and direct drug delivery to solid tumors in the vascular system.
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Sanduzzi A, Balbo P, Candoli P, Catapano GA, Contini P, Mattei A, Puglisi G, Santoiemma L, Stanziola AA. COPD: adherence to therapy. Multidiscip Respir Med 2014; 9:60. [PMID: 25485108 PMCID: PMC4256899 DOI: 10.1186/2049-6958-9-60] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2014] [Accepted: 10/30/2014] [Indexed: 11/10/2022] Open
Abstract
Adherence to medical therapies is a growing issue, so much so that the World Health Organization defined it as “a new pharmacological problem”. The main factors affecting compliance are: frequency of administration, rapid onset of action, role of device. The most severe consequence of non-adherence is the increased risk of poor clinical outcome, associated with worsening of the quality of life and increase in health-care expenditure. It appears crucial to identify those COPD patients who are “poorly or not at all compliant with their treatment”. In order to evaluate adherence to the medical therapy, several methods were proposed, the most effective of which turned out to be self-reports, i.e. simple, brief questionnaires (e.g. Morisky test). To increase the likelihood of quickly identifying non-compliant patients, it may be useful to administer a simple questionnaire to naïve subjects (for example, in the waiting room before an examination) including six specific items allowing to identify the patient’s key characteristics. Depending on the answers, patients who do not comply with their pharmacological treatment may be classified as belonging to 6 phenotypes. For patients who are already under treatment it might be useful to administer another short questionnaire during follow up examination. Once the risk of non-compliance is identified, four possible types of measures can be taken: prescription-related, educational, behavioral and complex combined measures (combination of two or more actions). Therefore, while it is clear that adherence in COPD is a critical issue, it is also obvious that raising awareness on the disease and improving cooperation among specialists, general practitioners, health-care professionals, and patients is the starting point at which this evolution should immediately begin. Each medication is able to foster good compliance with the therapy, and consequently to maximize the efficacy, by virtue of its specific inhaler and its own active ingredient.
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Affiliation(s)
- Alessandro Sanduzzi
- Department of Respiratory Diseases, Monaldi Hospital, University Federico II, Naples, Italy
| | - Piero Balbo
- Pneumology Thoracic Unit, Ospedale Maggiore della Carità, Novara, Italy
| | - Piero Candoli
- Pulmonary and Endoscopic Thoracic Unit, AUSL, Ravenna, Italy
| | - Giousuè A Catapano
- Clinical Researcher, Respiratory Diseases, Institute of Clinical Physiology, G. Monasterio Tuscany Foundation/National Research Council, Pisa, Italy
| | - Paola Contini
- Department of Respiratory Diseases, Bellaria Hospital, Bologna, Italy
| | - Alessio Mattei
- Department of Pulmonary Diseases, Città della Salute e della Scienza Molinette, Torino, Italy
| | - Giovanni Puglisi
- Department of Pulmonary Diseases, S. Camillo - Forlanini Hospital, Rome, Italy
| | | | - Anna A Stanziola
- Department of Respiratory Diseases, Monaldi Hospital, University Federico II, Naples, Italy
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Yawn BP. Is 'GOLD' standard for the management of COPD in clinical practice? Drugs Context 2012; 2012:212243. [PMID: 24432032 PMCID: PMC3884956 DOI: 10.7573/dic.212243] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Accepted: 09/14/2012] [Indexed: 12/29/2022] Open
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Dhand R, Dolovich M, Chipps B, R. Myers T, Restrepo R, Rosen Farrar J. The Role of Nebulized Therapy in the Management of COPD: Evidence and Recommendations. COPD 2012; 9:58-72. [DOI: 10.3109/15412555.2011.630047] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Henriet AC, Marchand-Adam S, Mankikian J, Diot P. [Respimat®, first Soft Mist™ inhaler: new perspectives in the management of COPD]. Rev Mal Respir 2010; 27:1141-9. [PMID: 21163393 DOI: 10.1016/j.rmr.2010.10.024] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2010] [Accepted: 09/16/2010] [Indexed: 10/18/2022]
Abstract
INTRODUCTION In COPD, inhaler choice should be based on the likelihood that the patient will be able to use the device correctly in order to favour adherence and compliance, and therefore treatment efficacy. SATE OF THE ART: Performances of usual inhalers are limited by the necessity of a good coordination of patient inspiration and inhaler activation (pressurized metered dose inhalers), or a sufficient inspiratory flow (dry powder inhalers). Respimat®, the first "Soft Mist™ inhaler" (SMI), releases the drug solution as a low and sustained soft mist, so that lung deposition is both improved and reproducible. PERSPECTIVES In clinical studies, Respimat® has been shown to allow equivalent bronchodilator response and tolerability to metered dose or dry powder inhalers, but with lower doses of active drugs. Furthermore, studies assessing inhaler preference in COPD showed that patients preferred Respimat® to usual inhalers. CONCLUSION Respimat® SMI offers new perspectives for the management of chronic respiratory diseases, particularly in newly diagnosed or poorly compliant patients.
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Affiliation(s)
- A-C Henriet
- Inserm U618, Service de Pneumologie, Hôpital Bretonneau, CHU de Tours, 2 Boulevard Tonnellé, 37044 Tours, France
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