- ICH GCP
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- Klinische proef NCT02141633
Airway and Pulmonary Vascular Endothelial Function in Healthy Smokers: Effect of Inhaled Glucocorticosteroid Treatment (smoker3)
Studie Overzicht
Toestand
Conditie
Gedetailleerde beschrijving
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).
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Florida
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Miami, Florida, Verenigde Staten, 33136
- University of Miami School of Medicine
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
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
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Dubbele
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Experimenteel: 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
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participants will performed echocardiogram before and 15 minutes after inhaled albuterol
participants will performed echocardiogram before and 15 minutes after inhaled albuterol
Andere namen:
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).
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Experimenteel: non-smokers
healthy life-time non smokers will be enrolled and perform airway blood flow and echocardiogram before and 15 minutes after albuterol inhalation
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participants will performed echocardiogram before and 15 minutes after inhaled albuterol
participants will performed echocardiogram before and 15 minutes after inhaled albuterol
Andere namen:
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Airway Blood Flow
Tijdsspanne: before and 15 minutes after albuterol inhalation
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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
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before and 15 minutes after albuterol inhalation
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Echocardiogram
Tijdsspanne: MPAP before and 15 minutes after albuterol inhalation in smokers vs non-smokers
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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
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MPAP before and 15 minutes after albuterol inhalation in smokers vs non-smokers
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Medewerkers en onderzoekers
Sponsor
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Schatting)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Trefwoorden
Aanvullende relevante MeSH-voorwaarden
- Fysiologische effecten van medicijnen
- Adrenerge middelen
- Neurotransmitter agenten
- Moleculaire mechanismen van farmacologische werking
- Autonome agenten
- Agenten van het perifere zenuwstelsel
- Ontstekingsremmende middelen
- Adrenerge agonisten
- Dermatologische middelen
- Bronchusverwijdende middelen
- Anti-astmatische middelen
- Agenten van het ademhalingssysteem
- Reproductieve controlemiddelen
- Anti-allergische middelen
- Adrenerge bèta-2-receptoragonisten
- Adrenerge beta-agonisten
- Tocolytische middelen
- Fluticason
- Xhance
- Albuterol
Andere studie-ID-nummers
- 20120896
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