Acute Airway Vascular Smooth Muscle Effects of Inhaled Budesonide
2 other identifiers
interventional
20
1 country
1
Brief Summary
Glucocorticosteroids recently have been shown to have non-genomic actions that are plasma membrane-mediated and do not require gene transcription and translation. One of these non-genomic effects is the inhibition of adrenergic agonist transport into airway vascular smooth muscle cells with an increase of adrenergic agonist concentrations at adrenergic receptor sites and enhance the physiological effects of endogenous adrenergic agonists (e.g. locally released norepinephrine from noradrenergic neurons) or exogenous adrenergic agonists (e.g. inhaled beta-adrenergic agonists).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable asthma
Started Jul 2008
Longer than P75 for not_applicable asthma
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2008
CompletedFirst Submitted
Initial submission to the registry
October 12, 2010
CompletedFirst Posted
Study publicly available on registry
October 13, 2010
CompletedPrimary Completion
Last participant's last visit for primary outcome
August 1, 2012
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2012
CompletedResults Posted
Study results publicly available
January 16, 2015
CompletedJanuary 16, 2015
January 1, 2015
4.1 years
October 12, 2010
November 12, 2014
January 7, 2015
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Airway Blood Flow (Qaw)
Qaw will be measured before and up to 6 hours after a single inhaled dose of 360ug, 720ug, and 1440ug budesonide or placebo from a DPI, using a double-blinded randomized design on different days.
participants will be followed for 6 hours after budesonide dose
Secondary Outcomes (1)
Forced Expiratory Volume in 1 Second (FEV1)
participant will be followed up to 6 hours after budesonide dose
Study Arms (5)
budesonide 360ug
EXPERIMENTALasthmatic subject received different doses of inhaled budesonide in random other
budesonide 720ug
EXPERIMENTALasthmatic subject received different doses of inhaled budesonide in random other
budesonide 1440ug
EXPERIMENTALasthmatic subject received different doses of inhaled budesonide in random other
placebo
PLACEBO COMPARATORasthmatic subject received inhaled placebo
Budesonide720ug 4 times
EXPERIMENTALasthmatic subject received 720ug of inhaled budesonide 4 times separated by 30 minutes.
Interventions
A single inhaled dose of 360ug budesonide from a DPI.
A single inhaled dose of 720ug budesonide from a DPI.
A single dose of 1440ug of the budesonide from DPI.
720ug of budesonide will be inhaled by the subjects 4 times, separated by 30 minutes.
A single inhaled dose of placebo from a DPI.
Eligibility Criteria
You may qualify if:
- Twenty lifetime nonsmokers moderate or severe asthmatics; FEV1≥50 of predicted on the screening day
You may not qualify if:
- Women of childbearing potential who do not use accepted birth control measures; pregnant and breast feeding women; Cardiovascular disease and/or use of cardiovascular medication; Subjects with known beta-adrenergic agonist or glucocorticosteroid intolerance; Acute respiratory infection and or acute exacerbation of asthma within four weeks prior to the study; Use of systemic glucocorticosteroids within 4 weeks prior to the study; Daily ICS dose (fluticasone or budesonide) \> 500ug; Diabetes mellitus
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- University of Miamilead
- AstraZenecacollaborator
Study Sites (1)
Pulmonary Human Research Laboratory, University of Miami, Miller School of Medicine
Miami, Florida, 33136, United States
Related Publications (5)
Horvath G, Sutto Z, Torbati A, Conner GE, Salathe M, Wanner A. Norepinephrine transport by the extraneuronal monoamine transporter in human bronchial arterial smooth muscle cells. Am J Physiol Lung Cell Mol Physiol. 2003 Oct;285(4):L829-37. doi: 10.1152/ajplung.00054.2003. Epub 2003 Jun 13.
PMID: 12807698BACKGROUNDHorvath G, Lieb T, Conner GE, Salathe M, Wanner A. Steroid sensitivity of norepinephrine uptake by human bronchial arterial and rabbit aortic smooth muscle cells. Am J Respir Cell Mol Biol. 2001 Oct;25(4):500-6. doi: 10.1165/ajrcmb.25.4.4559.
PMID: 11694456BACKGROUNDMendes ES, Pereira A, Danta I, Duncan RC, Wanner A. Comparative bronchial vasoconstrictive efficacy of inhaled glucocorticosteroids. Eur Respir J. 2003 Jun;21(6):989-93. doi: 10.1183/09031936.03.00072402.
PMID: 12797493BACKGROUNDBrieva JL, Danta I, Wanner A. Effect of an inhaled glucocorticosteroid on airway mucosal blood flow in mild asthma. Am J Respir Crit Care Med. 2000 Jan;161(1):293-6. doi: 10.1164/ajrccm.161.1.9905068.
PMID: 10619834BACKGROUNDMendes ES, Rebolledo P, Campos M, Wanner A. Immediate antiinflammatory effects of inhaled budesonide in patients with asthma. Ann Am Thorac Soc. 2014 Jun;11(5):706-11. doi: 10.1513/AnnalsATS.201307-220OC.
PMID: 24735128DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Results Point of Contact
- Title
- Eliana Mendes
- Organization
- University of Miami
Study Officials
- PRINCIPAL INVESTIGATOR
Eliana Mendes, MD
University of Miami
Publication Agreements
- PI is Sponsor Employee
- Yes
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- DOUBLE
- Who Masked
- PARTICIPANT, INVESTIGATOR
- Purpose
- BASIC SCIENCE
- Intervention Model
- SINGLE GROUP
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- University of Miami
Study Record Dates
First Submitted
October 12, 2010
First Posted
October 13, 2010
Study Start
July 1, 2008
Primary Completion
August 1, 2012
Study Completion
August 1, 2012
Last Updated
January 16, 2015
Results First Posted
January 16, 2015
Record last verified: 2015-01