Effects of Tiotropium on Breathing Capacity and Exercise Limitation in Early Stages of Chronic Obstructive Pulmonary Disease
A Randomized, Double-blind, Placebo-controlled, 6-week, Crossover Study to Examine the Effects of Tiotropium (Spiriva® HandiHaler®, 18 µg Once Daily) on Dynamic Hyperinflation and Physical Exercise Capacity in Patients With Early Stage Chronic Obstructive Pulmonary Disease (COPD)
調査の概要
研究の種類
入学 (実際)
段階
- フェーズ 4
連絡先と場所
研究場所
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Alabama
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Birmingham、Alabama、アメリカ
- 205.440.1006 Boehringer Ingelheim Investigational Site
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Jasper、Alabama、アメリカ
- 205.440.1015 Boehringer Ingelheim Investigational Site
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California
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Torrance、California、アメリカ
- 205.440.1002 Boehringer Ingelheim Investigational Site
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Connecticut
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Hartford、Connecticut、アメリカ
- 205.440.1018 Boehringer Ingelheim Investigational Site
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Illinois
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Springfield、Illinois、アメリカ
- 205.440.1008 Boehringer Ingelheim Investigational Site
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Indiana
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Muncie、Indiana、アメリカ
- 205.440.1017 Boehringer Ingelheim Investigational Site
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Michigan
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Livonia、Michigan、アメリカ
- 205.440.1020 Boehringer Ingelheim Investigational Site
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New Hampshire
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Lebanon、New Hampshire、アメリカ
- 205.440.1011 Boehringer Ingelheim Investigational Site
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North Carolina
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Charlotte、North Carolina、アメリカ
- 205.440.1019 Boehringer Ingelheim Investigational Site
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Pennsylvania
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Pittsburgh、Pennsylvania、アメリカ
- 205.440.1013 Boehringer Ingelheim Investigational Site
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South Carolina
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Spartanburg、South Carolina、アメリカ
- 205.440.1007 Boehringer Ingelheim Investigational Site
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Ontario
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Kingston、Ontario、カナダ
- 205.440.2003 Boehringer Ingelheim Investigational Site
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Quebec
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Montreal、Quebec、カナダ
- 205.440.2001 Boehringer Ingelheim Investigational Site
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Montreal、Quebec、カナダ
- 205.440.2004 Boehringer Ingelheim Investigational Site
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Ste-Foy、Quebec、カナダ
- 205.440.2002 Boehringer Ingelheim Investigational Site
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参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion criteria:
For COPD subjects: Male or female, age of 40 years or older, smoking history >10 pack-years, symptomatic defined as baseline dyspnea index focal score of 9 or more and / or daily cough with production of sputum for three months per year during at least two consecutive years, diagnosis of early stage COPD according to: post-bronchodilator FEV1/FVC ratio <70%., FEV1 >/=50% post-bronchodilator predicted normal, and a decreased Inspiratory Capacity during exercise. For Age / Gender Matched Controls: Male or female, age of 40 years or older, nonsmoker, with no significant diseases.
Exclusion criteria:
Patients with a significant disease other than COPD; a significant disease is defined as a disease which, in the opinion of the investigator, may (i) put the patient at risk because of participation in the study, (ii) influence the results of the study, or (iii) cause concern regarding the patient's ability to participate in the study.
Patients with a history of asthma, Patients requiring the use of supplemental oxygen therapy, Patients who have a limitation of exercise performance as a result of factors other than fatigue or exertional dyspnoea, such as arthritis in the leg, angina pectoris, claudication or other conditions, or Patients with contraindications to exercise.
Note: Additional exclusion criteria for Age / Gender Matched Controls: Patients with a significant disease including COPD.
研究計画
研究はどのように設計されていますか?
デザインの詳細
- 主な目的:処理
- 割り当て:ランダム化
- 介入モデル:クロスオーバー割り当て
- マスキング:ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
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アクティブコンパレータ:18 mcg tiotropium
Patient to receive 1 tiotropium bromide inhalation powder capsule daily (in the morning) via HandiHaler
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double blind randomized crossover
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プラセボコンパレーター:Placebo
Patient to receive 1 placebo inhalation powder capsule daily (in the morning) identical to those containing tiotropium bromide inhalation powder via HandiHaler
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inhalation powder capsule identical to those containing tiotropium bromide inhalation powder
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介入なし:Control
Age and gender matched control subjects to conduct incremental and constant work rate exercise tests for comparison to subjects with early stage COPD
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この研究は何を測定していますか?
主要な結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Change From Baseline in Inspiratory Capacity (IC) at Isotime
時間枠:baseline, six weeks of treatment
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Inspiratory capacity (IC) during CWR exercise testing measured at isotime (isotime was established during CWR exercise testing at baseline).
Isotime is the minimum exercise time among all tests.
Constant work rate exercise means the exercise is done under constant work rate.
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baseline, six weeks of treatment
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
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Constant Work Rate (CWR) Endurance Time
時間枠:six weeks of treatment
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CWR exercise duration calculated as the length of time of the exercise period
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six weeks of treatment
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Change From Baseline in Modified Borg Scale Ratings for Dyspnea Intensity at Isotime
時間枠:baseline, six weeks of treatment
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Modified Borg Scale is a participant rating of the intensity of dyspnea measured on a scale ranging from 0 (Nothing at all) to 10 (Maximal, most severe ever experienced).
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baseline, six weeks of treatment
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協力者と研究者
スポンサー
協力者
出版物と役立つリンク
一般刊行物
- Gagnon P, Casaburi R, Saey D, Porszasz J, Provencher S, Milot J, Bourbeau J, O'Donnell DE, Maltais F. Cluster Analysis in Patients with GOLD 1 Chronic Obstructive Pulmonary Disease. PLoS One. 2015 Apr 23;10(4):e0123626. doi: 10.1371/journal.pone.0123626. eCollection 2015.
- Porszasz J, Blonshine S, Cao R, Paden HA, Casaburi R, Rossiter HB. Biological quality control for cardiopulmonary exercise testing in multicenter clinical trials. BMC Pulm Med. 2016 Jan 16;16:13. doi: 10.1186/s12890-016-0174-8.
- Casaburi R, Maltais F, Porszasz J, Albers F, Deng Q, Iqbal A, Paden HA, O'Donnell DE; 205.440 Investigators. Effects of tiotropium on hyperinflation and treadmill exercise tolerance in mild to moderate chronic obstructive pulmonary disease. Ann Am Thorac Soc. 2014 Nov;11(9):1351-61. doi: 10.1513/AnnalsATS.201404-174OC.
- O'Donnell DE, Maltais F, Porszasz J, Webb KA, Albers FC, Deng Q, Iqbal A, Paden HA, Casaburi R; 205.440 investigators. The continuum of physiological impairment during treadmill walking in patients with mild-to-moderate COPD: patient characterization phase of a randomized clinical trial. PLoS One. 2014 May 1;9(5):e96574. doi: 10.1371/journal.pone.0096574. eCollection 2014.
便利なリンク
研究記録日
主要日程の研究
研究開始
一次修了 (実際)
研究の完了 (実際)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (見積もり)
学習記録の更新
投稿された最後の更新 (見積もり)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
この情報は、Web サイト clinicaltrials.gov から変更なしで直接取得したものです。研究の詳細を変更、削除、または更新するリクエストがある場合は、register@clinicaltrials.gov。 までご連絡ください。 clinicaltrials.gov に変更が加えられるとすぐに、ウェブサイトでも自動的に更新されます。