Effect of Vilanterol on Methacholine Challenge Results
The Effect of Vilanterol Against Methacholine-induced Bronchoconstriction in Mild Asthmatics
1 other identifier
interventional
17
1 country
1
Brief Summary
The study will assess the degree of bronchoprotection provided by the ultra long-acting beta2 agonist vilanterol against methacholine-induced bronchoconstriction.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for phase_4 asthma
Started Oct 2017
Shorter than P25 for phase_4 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
October 13, 2017
CompletedFirst Submitted
Initial submission to the registry
October 16, 2017
CompletedFirst Posted
Study publicly available on registry
October 19, 2017
CompletedPrimary Completion
Last participant's last visit for primary outcome
May 1, 2018
CompletedStudy Completion
Last participant's last visit for all outcomes
May 1, 2018
CompletedOctober 11, 2018
October 1, 2018
7 months
October 16, 2017
October 9, 2018
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Change from baseline methacholine PC20 (bronchoprotection) at 30 min post-treatment
assessed by dose shift of geometric mean methacholine PC20 data
baseline versus 30 min post-treatment
Secondary Outcomes (1)
Change from baseline methacholine PC20 (bronchoprotection) at 24 hours post-treatment
baseline versus 24 hours post-treatment
Study Arms (3)
Vilanterol
EXPERIMENTALVilanterol (25mcg)+ fluticasone (100mcg) inhaled through Ellipta® inhaler
Fluticasone
EXPERIMENTALFluticasone (100mcg) monotherapy inhaled through Ellipta® inhaler
Placebo
PLACEBO COMPARATORLactose powder inhaled through Ellipta® inhaler
Interventions
Same as vilanterol arm description
Eligibility Criteria
You may qualify if:
- men and women aged 18 or older
- stable mild-to-moderate asthma
- baseline methacholine PC20 less than or equal to 8mg/mL
- FEV1 greater than or equal to 65% of predicted
You may not qualify if:
- Use of long-acting anticholinergic or long-acting beta2 agonist within 30 days of study
- pregnant or nursing
- diabetes
- hypokalemia
- cardiovascular, prostate, kidney, or urinary retention problems
- lactose-intolerant
- allergy-induced asthma symptoms or upper respiratory tract infection within four weeks of study
- current smokers
- past smokers with smoking history \>10 pack years
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Asthma Research Lab - University of Saskatchewan
Saskatoon, Saskatchewan, S7N 0W8, Canada
Related Publications (1)
Westbury GLM, Blais CM, Davis BE, Cockcroft DW. Bronchoprotective effect of vilanterol against methacholine-induced bronchoconstriction in mild asthmatics: A randomized three-way crossover study. Ann Allergy Asthma Immunol. 2018 Sep;121(3):328-332. doi: 10.1016/j.anai.2018.07.005. Epub 2018 Jul 12.
PMID: 30017826DERIVED
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Officials
- PRINCIPAL INVESTIGATOR
Don Cockcroft, MD
University of Saskatchewan
Study Design
- Study Type
- interventional
- Phase
- phase 4
- Allocation
- RANDOMIZED
- Masking
- TRIPLE
- Who Masked
- PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- CROSSOVER
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Professor, Department of Medicine
Study Record Dates
First Submitted
October 16, 2017
First Posted
October 19, 2017
Study Start
October 13, 2017
Primary Completion
May 1, 2018
Study Completion
May 1, 2018
Last Updated
October 11, 2018
Record last verified: 2018-10
Data Sharing
- IPD Sharing
- Will share
Journal Publication