Airway Redox and Gender Determinants in Severe Asthma

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ACTIVE_NOT_RECRUITING

Total Enrollment

300 participants

Study Classification

OBSERVATIONAL

Study Start Date

2012-12-31

Study Completion Date

2027-08-31

Brief Summary

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The investigators will study the biologic and chemical differences that cause the greater incidence, and severity of asthma in women as compared to men. Severe asthma affects boys more than girls, while severe asthma in adults is predominantly a disease of women. The investigators aim to identify the processes that occur in the body that are behind the onset of severe asthma in young women during the teenage years, and the resolution of severe asthma in boys. To further evaluate gender influences on asthma, asthmatic women at different stages of their menstrual cycle (period) will be also studied. The investigators aim to use biomarkers to develop testing procedures that will identify different types or characteristics of asthma in men and women; and to follow patients over time to uncover relevant clinical outcomes of biomarkers. The investigators anticipate that they will 1) develop clinically relevant tests to identify unique types or characteristics of asthma and severe asthma; 2) determine outcomes over time of biochemically-defined types of asthma; and 3) identify the reasons for why adult women are affected more than men with severe asthma.

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Detailed Description

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This scientific site-specific project is part of a larger network of asthma studies, the Severe Asthma Research Program (SARP). The mission of SARP is to improve the understanding of severe asthma to develop better treatments.

Conditions

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Asthma

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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None interventional

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

Subjects with asthma

* children age 6-17 years old (25% enrollment)
* adults 18 years and older (75% enrollment)

Exclusion Criteria

* Pregnancy during the characterization phase
* Current smoking
* Smoking history \> 10 pack years if ≥30 years of age, or smoking history \> 5 pack years if \<30 years of age (Note: if a subject has a smoking history, no smoking within the past year),
* Other chronic pulmonary disorders associated with asthma-like symptoms, including (but not limited to) cystic fibrosis, chronic obstructive pulmonary disease, chronic bronchitis, vocal cord dysfunction (that is the sole cause of respiratory symptoms and at the PI's discretion)
* Severe scoliosis or chest wall deformities
* History of premature birth before 35 weeks gestation
* Unwillingness to receive an intramuscular triamcinolone acetonide injection.

Minimum Eligible Age

6 Years

Maximum Eligible Age

80 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes