- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT01378520
Effect of Ketoconazole on Breathlessness (KetoRLB)
The Effect of Ketoconazole on Breathlessness During Resistive Load Breathing in Patients With Chronic Obstructive Pulmonary Disease
Aperçu de l'étude
Statut
Les conditions
Intervention / Traitement
Description détaillée
Type d'étude
Inscription (Réel)
Phase
- Phase 4
Contacts et emplacements
Lieux d'étude
-
-
New Hampshire
-
Lebanon, New Hampshire, États-Unis, 03756-0001
- Dartmouth-Hitchcock Medical Center
-
-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
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
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Objectif principal: Traitement
- Répartition: Randomisé
- Modèle interventionnel: Affectation croisée
- Masquage: Quadruple
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: ketoconazole
600 mg ketoconazole
|
600 mg capsule oral once
Autres noms:
|
|
Comparateur placebo: inert powder
inert powder in capsule
|
oral once
Autres noms:
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Unpleasantness of Breathlessness
Délai: 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
Délai: 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)
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Change in Level of B-endorphin Immunoreactivity
Délai: 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)
|
Collaborateurs et enquêteurs
Parrainer
Les enquêteurs
- Chercheur principal: Donald A Mahler, MD, Dartmouth-Hitchcock Medical Center
Publications et liens utiles
Publications générales
- 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.
Dates d'enregistrement des études
Dates principales de l'étude
Début de l'étude
Achèvement primaire (Réel)
Achèvement de l'étude (Réel)
Dates d'inscription aux études
Première soumission
Première soumission répondant aux critères de contrôle qualité
Première publication (Estimation)
Mises à jour des dossiers d'étude
Dernière mise à jour publiée (Réel)
Dernière mise à jour soumise répondant aux critères de contrôle qualité
Dernière vérification
Plus d'information
Termes liés à cette étude
Termes MeSH pertinents supplémentaires
- Maladies des voies respiratoires
- Troubles respiratoires
- Signes et symptômes respiratoires
- Maladies pulmonaires
- Maladies pulmonaires obstructives
- Maladie pulmonaire obstructive chronique
- Dyspnée
- Effets physiologiques des médicaments
- Mécanismes moléculaires de l'action pharmacologique
- Agents anti-infectieux
- Inhibiteurs d'enzymes
- Hormones, substituts hormonaux et antagonistes hormonaux
- Inhibiteurs du cytochrome P-450 CYP3A
- Inhibiteurs des enzymes du cytochrome P-450
- Antagonistes hormonaux
- Agents antifongiques
- Inhibiteurs de la synthèse des stéroïdes
- Inhibiteurs de la 14-alpha déméthylase
- Kétoconazole
Autres numéros d'identification d'étude
- CPHS22775
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