Effect of Ketoconazole on Breathlessness (KetoRLB)
The Effect of Ketoconazole on Breathlessness During Resistive Load Breathing in Patients With Chronic Obstructive Pulmonary Disease
調査の概要
詳細な説明
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
-
-
New Hampshire
-
Lebanon、New Hampshire、アメリカ、03756-0001
- Dartmouth-Hitchcock Medical Center
-
-
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:
- 50 years of age or older;
- diagnosis of COPD;
- current or former smoker of at least 10 pack-years;
- post-bronchodilator FEV1 greater than or equal to 30% predicted and less than or equal to 80% predicted; post-bronchodilator ratio < 70%
Exclusion Criteria:
- any concomitant disease that might interfere with study procedures;
- use of a drug that may cause a possible drug interaction with ketoconazole
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:4倍
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
実験的:ketoconazole
600 mg ketoconazole
|
600 mg capsule oral once
他の名前:
|
|
プラセボコンパレーター:inert powder
inert powder in capsule
|
oral once
他の名前:
|
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 |
|---|---|---|
|
Unpleasantness of Breathlessness
時間枠:At 1 minute intervals during Resistive Load Breathing at Period 1 (Day 3 or 4) and Period 2 (Day 5, 6 or 7)
|
The average of all ratings for the unpleasantness of breathlessness at equivalent times for each subject during Resistive Load Breathing (RLB). For example, if 1 subject provided 6 ratings during 6 minutes of RLB with Ketoconazole and 10 ratings during 10 minutes of RLB with inert powder, then ratings for unpleasantness through 6 minutes were used for analysis for that patient. This approach was used for all subjects to yield a total of 252 ratings for Ketoconazole and for inert powder. Subject rating of intensity of unpleasantness was obtained during RLB on a 100 mm Visual Analog Scale anchored at the bottom by "No Unpleasantness" and at the top by "Greatest Unpleasantness". |
At 1 minute intervals during Resistive Load Breathing at Period 1 (Day 3 or 4) and Period 2 (Day 5, 6 or 7)
|
|
Intensity of Breathlessness
時間枠:At 1 minute intervals during Resistive Load Breathing at Period 1 (Day 3 or 4) and Period 2 (Day 5, 6 or 7)
|
The average of all ratings for the intensity of breathlessness at equivalent times for each subject during Resistive Load Breathing (RLB). For example, if 1 subject provided 6 ratings during 6 minutes of RLB with Ketoconazole and 10 ratings during 10 minutes of RLB with inert powder, then ratings for intensity through 6 minutes were used for analysis for that patient. This approach was used for all subjects to yield a total of 252 ratings for Ketoconazole and for inert powder. Subject rating of intensity of breathlessness was obtained at 1 minute intervals during RLB on a 100 mm Visual Analog Scale anchored at the bottom by "No Intensity" and at the top by "Greatest Intensity". |
At 1 minute intervals during Resistive Load Breathing at Period 1 (Day 3 or 4) and Period 2 (Day 5, 6 or 7)
|
二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Change in Level of B-endorphin Immunoreactivity
時間枠:At the end of resistance load breathing (4.5 hours after receiving the test article)
|
Change between pre-treatment and post treatment serum levels of beta-endorphin immunoreactivity measured in pmol/L
|
At the end of resistance load breathing (4.5 hours after receiving the test article)
|
協力者と研究者
捜査官
- 主任研究者:Donald A Mahler, MD、Dartmouth-Hitchcock Medical Center
出版物と役立つリンク
一般刊行物
- Gifford AH, Mahler DA, Waterman LA, Ward J, Kraemer WJ, Kupchak BR, Baird JC. Neuromodulatory effect of endogenous opioids on the intensity and unpleasantness of breathlessness during resistive load breathing in COPD. COPD. 2011 Jun;8(3):160-6. doi: 10.3109/15412555.2011.560132. Epub 2011 Apr 22.
- Mahler DA, Gifford AH, Waterman LA, Ward J, Kraemer WJ, Kupchak BR, Harver A. Effect of increased blood levels of beta-endorphin on perception of breathlessness. Chest. 2013 May;143(5):1378-1385. doi: 10.1378/chest.12-1541.
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 (実際)
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
本研究に関する用語
追加の関連 MeSH 用語
その他の研究ID番号
- CPHS22775
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