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A review of the efficacy and safety of once-daily tiotropium Respimat 2.5 micrograms in adults and adolescents with asthma

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Despite current guidelines, many patients with asthma remain symptomatic, particularly those intolerant of, unresponsive to, or uncontrolled by long-acting beta 2‐agonists (LABAs). Tiotropium bromide, delivered through the Respimat soft-mist inhaler in 2 puffs of 1.25 micrograms each, is approved for the long-term, maintenance treatment of asthma in patients aged ≥6 years.


An overview of the use of once-daily tiotropium Respimat 2.5 micrograms in adults and adolescents with varying degrees of asthma severity. The role of the parasympathetic nervous system in the pathophysiology of asthma, the development of tiotropium for respiratory disease, and the value of the Respimat inhaler are also discussed.


A literature search of all phase II and phase III trials of once-daily tiotropium Respimat 2.5 micrograms.


Once-daily tiotropium Respimat 2.5 micrograms was studied in five phase III studies: three studies in adults and two in adolescents aged 12‐17 years. Tiotropium Respimat 2.5 micrograms demonstrated efficacy in adults and adolescents with mild, moderate, or severe asthma, showing significant improvements in lung function and asthma control in patients with uncontrolled asthma despite inhaled corticosteroids (ICS) or ICS plus LABA use. The adverse event profile of tiotropium was very acceptable, with safety similar to placebo.


Once-daily tiotropium Respimat 2.5 micrograms has positive attributes that include efficacy, a safety profile similar to placebo, once-daily dosing, administration by inhalation, and delivery in the easy-to-use and consistent-dosing Respimat device. However, more data are needed on the effects of tiotropium on clinical outcomes, patients' day-to-day lives, and real-world effectiveness.

Keywords: ACQ; FEF25‐75%; FEV1; Respimat; Tiotropium; adolescents; adults; anticholinergic; asthma; safety

Document Type: Research Article

Publication date: January 1, 2018

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  • Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.

    The goal of the Proceedings is to publish articles with a predominantly clinical focus which directly impact quality of care for patients with allergic disease and asthma and by having the potential to directly impact the quality of patient care. AAP welcomes the submission of original works including peer-reviewed original research and clinical trial results. Additionally, as the official journal of the Eastern Allergy Conference (EAC), AAP will publish content from EAC poster sessions as well as review articles derived from EAC lectures.

    Featured topics include asthma, rhinitis, sinusitis, food allergies, allergic skin diseases, diagnostic techniques, allergens, and treatment modalities. Published material includes peer-reviewed original research, clinical trials and review articles.

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    The journal is indexed in Thomson Reuters Web of Science and Science Citation Index Expanded, plus the National Library of Medicine's PubMed service.
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