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Tiotropium Respimat® in asthma: a double-blind, randomised, dose-ranging study in adult patients with moderate asthma.

ABSTRACT: Tiotropium, a once-daily long-acting anticholinergic bronchodilator, when administered via Respimat® SoftMist™ inhaler (tiotropium Respimat®) significantly reduces the risk of severe exacerbations and improves lung function in patients with severe persistent asthma that is not fully controlled despite using inhaled corticosteroids (ICS) and long-acting ?2-agonists. To further explore the dose-response curve in asthma, we investigated the efficacy and safety of three different doses of tiotropium Respimat® as add-on to ICS in symptomatic patients with moderate persistent asthma.In this randomised, double-blind, placebo-controlled, four-way crossover study, patients were randomised to tiotropium Respimat® 5 ?g, 2.5 ?g or 1.25 ?g or placebo Respimat®, once daily in the evening. Each treatment was administered for 4 weeks, without washout between treatment periods. Eligibility criteria included ?60% and ?90% of predicted normal forced expiratory volume in 1 second (FEV1) and seven-question Asthma Control Questionnaire mean score of ?1.5. Patients were required to continue maintenance treatment with stable medium-dose ICS for at least 4 weeks prior to and during the treatment period. Long-acting ?2-agonists were not permitted during the treatment phase. The primary efficacy end point was peak FEV1 measured within 3 hours after dosing (peak FEV1(0-3h)) at the end of each 4-week period, analysed as a response (change from study baseline).In total, 149 patients were randomised and 141 completed the study. Statistically significant improvements in peak FEV1(0-3h) response were observed with each tiotropium Respimat® dose versus placebo (all P?

SUBMITTER: Beeh KM

PROVIDER: S-EPMC4066691 | biostudies-literature | 2014 Jun

REPOSITORIES: biostudies-literature

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Tiotropium Respimat® in asthma: a double-blind, randomised, dose-ranging study in adult patients with moderate asthma.

Beeh Kai-Michael KM Moroni-Zentgraf Petra P Ablinger Othmar O Hollaenderova Zuzana Z Unseld Anna A Engel Michael M Korn Stephanie S

Respiratory research 20140603

<h4>Background</h4>Tiotropium, a once-daily long-acting anticholinergic bronchodilator, when administered via Respimat® SoftMist™ inhaler (tiotropium Respimat®) significantly reduces the risk of severe exacerbations and improves lung function in patients with severe persistent asthma that is not fully controlled despite using inhaled corticosteroids (ICS) and long-acting β2-agonists. To further explore the dose-response curve in asthma, we investigated the efficacy and safety of three different ...[more]

PMID: 24890738

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Project description:A Phase II, multicentre, randomised, double-blind, placebo-controlled, crossover trial comparing the 24-h forced expiratory volume in 1 s (FEV1) time profile after 3 weeks' treatment with once-daily (QD) or twice-daily (BID) olodaterol (at the same total daily dose) versus placebo delivered via Respimat® in patients with moderate to severe asthma.Patients were randomised to different sequences of olodaterol with 2-week washout, either as a total daily dose of 5 ?g (5 ?g QD [AM] or 2.5 ?g BID) or placebo, or 10 ?g (10 ?g QD [AM] or 5 ?g BID) or placebo. Primary end point was FEV1 area under the curve from 0 to 24 h (AUC0-24) response (defined as change from study baseline FEV1) after 3 weeks. Key secondary end points were FEV1 AUC0-12 and AUC12-24 responses.Two hundred and six patients received treatment. All olodaterol treatments demonstrated statistically significant improvements in FEV1 AUC0-24 response at 3 weeks versus placebo (p?<?0.0001); adjusted mean treatment difference versus placebo was 0.191 L for olodaterol 2.5 ?g BID (95 % confidence interval [CI] 0.152, 0.229), 0.150 L for 5 ?g QD (95 % CI 0.111, 0.189), 0.228 L for 5 ?g BID (95 % CI 0.190, 0.266) and 0.209 L for 10 ?g QD (95 % CI 0.170, 0.247). These results were supported by the key secondary end points. Olodaterol 5 ?g QD provided numerically lower mean values for 24-h bronchodilation than olodaterol 2.5 ?g BID (p?=?0.0465), with no statistically significant difference between treatment with olodaterol 10 ?g QD and 5 ?g BID. No relevant differences in morning and evening peak expiratory flow or Asthma Control Questionnaire scores at 3 weeks were observed between different doses and regimens. Adverse events were generally mild to moderate and comparable between groups.All doses and dose frequencies provided adequate 24-h bronchodilation superior to placebo. Based on the results of this study, it would be reasonable to include both posologies of 5 ?g olodaterol daily (5 ?g QD or 2.5 ?g BID, both delivered in two puffs per dose from the Respimat® inhaler) in subsequent studies. Further studies are necessary to confirm the optimum dosing regimen in asthma. No safety concerns were identified.ClinicalTrials.gov NCT01311661.

Project description:IntroductionTiotropium is prescribed for the treatment of chronic obstructive pulmonary disease (COPD) and delivered via HandiHaler(®) (18 μg once daily) or Respimat(®) Soft Mist™ inhaler (5 μg once daily). The recent TIOtropium Safety and Performance In Respimat(®) (TIOSPIR™) study demonstrated that both exhibit similar safety profiles. This analysis provides an updated comprehensive safety evaluation of tiotropium(®) using data from placebo-controlled HandiHaler(®) and Respimat(®) trials.MethodsPooled analysis of adverse event (AE) data from tiotropium HandiHaler(®) 18 μg and Respimat(®) 5 μg randomized, double-blind, parallel-group, placebo-controlled, clinical trials in patients with COPD (treatment duration ≥4 weeks). Incidence rates, rate ratios (RRs), and 95% confidence intervals (CIs) were determined for HandiHaler(®) and Respimat(®) trials, both together and separately.ResultsIn the 28 HandiHaler(®) and 7 Respimat(®) trials included in this analysis, 11,626 patients were treated with placebo and 12,929 with tiotropium, totaling 14,909 (12,469 with HandiHaler(®); 2,440 with Respimat(®)) patient-years of tiotropium exposure. Mean age was 65 years, and mean prebronchodilator forced expiratory volume in 1 second (FEV1) was 1.16 L (41% predicted). The risk (RR [95% CI]) of AEs (0.90 [0.87, 0.93]) and of serious AEs (SAEs) (0.94 [0.89, 0.99]) was significantly lower in the tiotropium than in the placebo group (HandiHaler(®) and Respimat(®) pooled results), and there was a numerically lower risk of fatal AEs (FAEs) (0.90 [0.79, 1.01]). The risk of cardiac AEs (0.93 [0.85, 1.02]) was numerically lower in the tiotropium group. Incidences of typical anticholinergic AEs, but not SAEs, were higher with tiotropium. Analyzed separately by inhaler, the risks of AE and SAE in the tiotropium groups remained lower than in placebo and similarly for FAEs.ConclusionThis analysis indicates that tiotropium is associated with lower rates of AEs, SAEs, and similar rates of FAEs than placebo when delivered via HandiHaler(®) or Respimat(®) (overall and separately) in patients with COPD.

Project description:BackgroundTiotropium Safety and Performance in Respimat® (TIOSPIR®) compared the safety and efficacy of tiotropium Respimat® and tiotropium HandiHaler® in patients with chronic obstructive pulmonary disease (COPD). A prespecified spirometry substudy compared the lung function efficacy between treatment groups.MethodsTIOSPIR® was a large-scale, long-term (2.3-year), event-driven, randomized, double-blind, parallel-group trial of 17,135 patients with COPD. In the spirometry substudy, trough forced expiratory volume in 1 second (FEV1) and forced vital capacity (FVC) were measured at baseline and every 24 weeks for the duration of the trial.ResultsThe substudy included 1370 patients who received once-daily tiotropium Respimat® 5 μg (n = 461), 2.5 μg (n = 464), or tiotropium HandiHaler® 18 μg (n = 445). Adjusted mean trough FEV1 (average 24-120 weeks) was 1.285, 1.258, and 1.295 L in the Respimat® 5 μg, 2.5 μg, and HandiHaler® 18 μg groups (difference versus HandiHaler® [95 % CI]: -10 [-38, 18] mL for Respimat® 5 μg and, -37 [-65, -9] mL for Respimat® 2.5 μg); achieving noninferiority to tiotropium HandiHaler® 18 μg for tiotropium Respimat® 5 but not for 2.5 μg (prespecified analysis). Adjusted mean trough FVC was 2.590, 2.544, and 2.593 L in the Respimat® 5 μg, 2.5 μg, and HandiHaler® 18 μg groups. The rates of FEV1 decline over 24 to 120 weeks were similar for the three treatment arms (26, 40, and 34 mL/year for the tiotropium Respimat® 5-μg, 2.5-μg, and HandiHaler® 18-μg groups). The rate of FEV1 decline in GOLD I + II patients was greater than in GOLD III + IV patients (46 vs. 23 mL/year); as well as in current versus ex-smokers, in patients receiving combination therapies at baseline versus not, and in those experiencing an exacerbation during the study versus not.ConclusionsThe TIOSPIR® spirometry substudy showed that tiotropium Respimat® 5 μg was noninferior to tiotropium HandiHaler® 18 μg for trough FEV1, but Respimat® 2.5 μg was not. Tiotropium Respimat® 5 μg provides similar bronchodilator efficacy to tiotropium HandiHaler® 18 μg with comparable rates of FEV1 decline. The rate of FEV1 decline varied based on disease severity, with a steeper rate of decline observed in patients with moderate airway obstruction.Trial registrationNCT01126437.

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Tiotropium Respimat® in asthma: a double-blind, randomised, dose-ranging study in adult patients with moderate asthma.

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Tiotropium Respimat® in asthma: a double-blind, randomised, dose-ranging study in adult patients with moderate asthma.

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