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Neural Mechanisms in Asthma

This study has been completed.
Sponsor:
ClinicalTrials.gov Identifier:
NCT01155843
First Posted: July 2, 2010
Last Update Posted: October 2, 2015
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
University of Wisconsin, Madison
June 30, 2010
July 2, 2010
October 2, 2015
October 2011
November 2014   (Final data collection date for primary outcome measure)
  • Neural activity in response to stress [ Time Frame: duration of stress (30 minutes) ]
    positron emission tomography
  • inflammation [ Time Frame: 24 hours ]
    infiltration of eosinophils into lung sputum, percentage of blood eosinophils, exhaled nitric oxide, glucocorticoid sensitivity of peripheral blood leukocytes
  • lung function [ Time Frame: 24 hours ]
    peak expiratory volume in 1 sec effort
  • peripheral acute stress reactivity [ Time Frame: 60 minutes ]
    salivary cortisol and alpha amylase in response to acute stressor
Same as current
Complete list of historical versions of study NCT01155843 on ClinicalTrials.gov Archive Site
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Neural Mechanisms in Asthma
Neural Mechanisms by Which Chronic Stress Regulates Inflammation in Asthma
Asthma is a chronic disease that affects nearly 13% of adults in the U.S., causing substantial impairment that is reflected in the tens of millions of missed days of work, and doctors' and emergency room visits it leads to annually. Those who have asthma are twice as likely to develop depression and anxiety, which are associated with more frequent and severe asthma symptoms, especially in those under chronic stress. The project proposed here seeks to understand the role of the brain in these associations and to evaluate the neural mechanisms through which a safe, low-cost intervention, that influences the function of body via the mind, may diminish the expression of asthma symptoms.
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Observational
Observational Model: Case Control
Time Perspective: Cross-Sectional
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Non-Probability Sample
Community sample
Asthma
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  • Asthmatic, chronic stress
  • Asthmatic, non-stress
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*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
31
November 2014
November 2014   (Final data collection date for primary outcome measure)

Inclusion Criteria:

  • Asthmatics:

    • Physician diagnosed asthma with previous use of asthma medication
  • Controls:

    • negative skin-prick test to cat dander or house dust mite and have no history of asthma
  • Chronic Stress:

    • score 3 or above on any subscale of the UCLA (University of California Los Angeles) chronic stress interview

No chronic stress:

score 1.5 or below on all subscales of the UCLA chronic stress interview

Exclusion Criteria:

  • Individuals with severe asthma, or those whom currently require the use of corticosteroids
  • Individuals with significant medical problems
  • Individuals who smoke cigarettes
  • Individuals a previous adverse reaction to corticosteroids, a recent (< 1 month) viral illness, a history of severe asthma or anaphylaxis.
  • Breastfeeding women or women who are, suspect they might be or are trying to become pregnant
Sexes Eligible for Study: All
18 Years to 45 Years   (Adult)
Yes
Contact information is only displayed when the study is recruiting subjects
United States
 
 
NCT01155843
K01AT006202( U.S. NIH Grant/Contract )
Yes
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University of Wisconsin, Madison
University of Wisconsin, Madison
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University of Wisconsin, Madison
December 2014