Environmental Exposures, Genetics, and Exhaled Nitric Oxide in Pediatric Asthma
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|ClinicalTrials.gov Identifier: NCT00395096|
Recruitment Status : Completed
First Posted : November 2, 2006
Last Update Posted : February 19, 2009
|Condition or disease|
Nitric oxide is a naturally occurring gas that plays a role in many body functions. Levels of eNO increase with airway inflammation, a symptom of asthma. Researchers have proposed using eNO as a noninvasive measure to guide physicians in the treatment and medical management of asthma in children. However, more information about eNO is needed before this can happen. This study will perform a secondary analysis of the results from its parent study, the CAP study, which evaluated the effectiveness of preventing asthma in children who had been exposed to environmental tobacco smoke.
This study will not enroll any new participants. Previously collected data from the CAP study will be reevaluated in this study to determine the longitudinal effects of environmental and genetic factors on eNO levels. In addition, the data will be evaluated to determine the relationship between eNO levels and asthma severity. No new data will be collected in this study.
|Study Type :||Observational|
|Actual Enrollment :||225 participants|
|Official Title:||Environmental Exposures, NOS Genes, and Exhaled Nitric Oxide in Pediatric Asthma|
|Study Start Date :||July 2006|
|Actual Study Completion Date :||June 2008|
- Effects of environmental and genetic factors on exhaled nitric oxide (eNO) levels and the relationship between eNO and asthma severity [ Time Frame: Measured through the use of data previously collected in the Cincinnati Asthma Prevention (CAP) study ]
Biospecimen Retention: Samples With DNA
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00395096
|United States, Ohio|
|Cincinnati Children's Hospital Medical Center|
|Cincinnati, Ohio, United States, 45229-3039|
|Principal Investigator:||Adam J. Spanier, MD, MPH||Children's Hospital Medical Center, Cincinnati|