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Study identifier: NCT03105843 Synced from ClinicalTrials.gov · July 29, 2026
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Sensory-Mechanical Responses to Eucapneic Voluntary Hyperventilation and Mannitol

Condition: Asthma · Cough · Cough Variant Asthma  ·  Sponsor: Dr. Diane Lougheed

PhasePhase 4
Planned participants30
Who can joinAll sexes, 18 Years to 65 Years
Healthy volunteersYes

About this study

The objectives of this study are to determine the sensory-mechanical responses to Eucapneic Voluntary Hyperventilation (EVH) and Mannitol in individuals with cough variant asthma (CVA) and methacholine-induced cough with normal airway sensitivity (COUGH) and compare these responses to a control group of healthy individuals without asthma or chronic cough. We hypothesize: 1. EVH and Mannitol cause dyspnea, cough, small airway obstruction with resultant dynamic hyperinflation, gas trapping and autoPEEP in individuals with CVA and COUGH, but not healthy controls. 2. The sensory-mechanical responses to both hyperosmolar challenges (EVH and Mannitol) are comparable within groups (CVA, COUGH and healthy controls).

This description comes directly from the study's public registry record.

Talk to the study team

M. Diane Lougheed, MD, MSc  ·  613-548-2348  ·  diane.lougheed@kingstonhsc.ca

Taylar Wall, RRT  ·  613-549-6666  ·  taylar.wall@kingstonhsc.ca

Always discuss trial participation with your own doctor first.

Locations (1)

Kingston Health Sciences CentreKingston, Ontario, CanadaRecruiting

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Source record: clinicaltrials.gov/study/NCT03105843