- ICH GCP
- Registre américain des essais cliniques
- Essai clinique NCT02141633
Airway and Pulmonary Vascular Endothelial Function in Healthy Smokers: Effect of Inhaled Glucocorticosteroid Treatment (smoker3)
Aperçu de l'étude
Statut
Les conditions
Description détaillée
With this protocol the Investigators will test the hypotheses that a) there is a correlation between airway and pulmonary vascular endothelial function within the current smoker and non-smoker groups, and b) ICS treatment improves airway and pulmonary vascular endothelial function in the current smoker group.
Fifteen healthy current smokers with a >10 pack-year history of smoking and 15 healthy never-smokers will be enrolled. Males and females between 25 and 75 years of age will be recruited There will be 1-4 visits to the laboratory (one for non-smokers, 4 for smokers). All subjects will have the first visit. Current smokers will have 3 additional visits. Current smokers will be asked not to smoke before coming to the laboratory on the 3 study days. All subjects will be instructed to abstain from ingesting alcoholic beverages, coffee or caffeinated drinks for at least 12 hours the night before each study day. The subjects will also be instructed not to use PDE5 inhibitors for 24 hours before coming to the laboratory. On each study day, the protocol will start at the same time (in the morning).
Type d'étude
Inscription (Réel)
Phase
- N'est pas applicable
Contacts et emplacements
Lieux d'étude
-
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Florida
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Miami, Florida, États-Unis, 33136
- University of Miami School of Medicine
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-
Critères de participation
Critère d'éligibilité
Âges éligibles pour étudier
Accepte les volontaires sains
Sexes éligibles pour l'étude
La description
Inclusion Criteria:
- Fifteen healthy current smokers with a >10 pack-year history of smoking and 15 healthy never-smokers will be enrolled. Males and females between 25 and 75 years of age will be recruited.
Exclusion Criteria:
- Women of childbearing potential who do not use accepted birth control measures; pregnant and breast feeding women
- Cardiovascular disease and/or use of cardiovascular medications
- Subjects with known beta-adrenergic agonist intolerance
- A physician diagnosis of chronic airway disease (asthma, COPD, bronchiectasis, cystic fibrosis)
- Acute respiratory infection within four weeks prior to the study
- Use of any airway medication
- Abnormal pulmonary function
Plan d'étude
Comment l'étude est-elle conçue ?
Détails de conception
- Répartition: Randomisé
- Modèle interventionnel: Affectation parallèle
- Masquage: Double
Armes et Interventions
Groupe de participants / Bras |
Intervention / Traitement |
|---|---|
|
Expérimental: smokers
participants with smoking history ( > 10 pack/year) will be enrolled and perform airway blood flow and echocardiogram before and 15 minutes after albuterol inhalation
|
participants will performed echocardiogram before and 15 minutes after inhaled albuterol
participants will performed echocardiogram before and 15 minutes after inhaled albuterol
Autres noms:
participant will be received a 4-week course of inhaled fluticasone (220 μg fluticasone twice a day administered as a MDI using a spacer)
participant will be received a 4-week course of identically appearing placebo (2 puffs twice a day via spacer).
|
|
Expérimental: non-smokers
healthy life-time non smokers will be enrolled and perform airway blood flow and echocardiogram before and 15 minutes after albuterol inhalation
|
participants will performed echocardiogram before and 15 minutes after inhaled albuterol
participants will performed echocardiogram before and 15 minutes after inhaled albuterol
Autres noms:
|
Que mesure l'étude ?
Principaux critères de jugement
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Airway Blood Flow
Délai: before and 15 minutes after albuterol inhalation
|
compare inhaled albuterol-induced changes in airway blood flow (ΔQaw) in healthy current smokers and lifetime non-smokers as an index of endothelial function in the airway circulation and to compare the results between smokers and non-smokers
|
before and 15 minutes after albuterol inhalation
|
Mesures de résultats secondaires
Mesure des résultats |
Description de la mesure |
Délai |
|---|---|---|
|
Echocardiogram
Délai: MPAP before and 15 minutes after albuterol inhalation in smokers vs non-smokers
|
to compare inhaled albuterol-induced changes in echocardiogram measuring mean pulmonary artery pressure (MPAP)in healthy current smokers and lifetime non-smokers as an index of endothelial function in the pulmonary circulation and to compare the results between smokers and non-smokers
|
MPAP before and 15 minutes after albuterol inhalation in smokers vs non-smokers
|
Collaborateurs et enquêteurs
Parrainer
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 (Estimation)
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
- Effets physiologiques des médicaments
- Agents adrénergiques
- Agents neurotransmetteurs
- Mécanismes moléculaires de l'action pharmacologique
- Agents autonomes
- Agents du système nerveux périphérique
- Agents anti-inflammatoires
- Agonistes adrénergiques
- Agents dermatologiques
- Agents bronchodilatateurs
- Agents anti-asthmatiques
- Agents du système respiratoire
- Agents de contrôle de la reproduction
- Agents anti-allergiques
- Agonistes des récepteurs bêta-2 adrénergiques
- Bêta-agonistes adrénergiques
- Agents tocolytiques
- Fluticasone
- Xhance
- Albutérol
Autres numéros d'identification d'étude
- 20120896
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