Airway ObstructionNCT00044317
Health Effects of Particulate Acids in Late Adolescence
An observational study of Airway Obstruction and Cough, run by National Institute of Environmental Health Sciences (NIEHS).
Trial summary
This study was designed to follow a group of adolescents who were previously examined by questionnaire and pulmonary function tests when they were aged 8-10 years old. Approximately 50% of the population in 10 towns were seen again at age 17-18. Questionnaires and pulmonary function were repeated. Read more about this study
- Who is it for?
- Ages 16 to 19 yearsHealthy volunteers can take part
- Conditions the study is for
- Airway Obstruction, Cough
- How many people
- 1,500 participants
- Where
- No sites listed yet
- Study dates
- Start not givento not given
- Phase
- Observational
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 16 to 19 years
- All sexes
- Healthy volunteers accepted
- Child, Adult
Children seen in a previous study at ages 8-10 from selected cities
About this study
This study was designed to follow a group of adolescents who were previously examined by questionnaire and pulmonary function tests when they were aged 8-10 years old. Approximately 50% of the population in 10 towns were seen again at age 17-18. Questionnaires and pulmonary function were repeated. The hypotheses being tested related to whether the previously seen levels of pulmonary function that were related to pollution levels in the towns persisted as the lungs of these children grew and whether dietary antioxidants influences level of attained pulmonary function.
- Conditions
- Airway Obstruction, Cough
- Keywords
- FEV, Smoking, antioxidents, lung growth
- Medical subject headings
- Airway Obstruction, Cough, Smoking
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted27 Aug 2002 (estimated)
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Airway ObstructionStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Observational
- Observational model
- Defined population
- Time perspective
- Other
- Enrolment
- 1,500 participants
Sponsor and investigators
- Lead sponsor
- National Institute of Environmental Health Sciences (NIEHS)
- Sponsor type
- US National Institutes of Health
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT00044317
- Sponsor's protocol ID
- 8391-CP-001
- Status last verified
- Aug 2002
- First submitted
- 26 Aug 2002
- Last updated
- 24 Jun 2005
- Results posted
- No
Study at a glance
From the registry record, last updated by the sponsor on 24 Jun 2005. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- Health Effects of Particulate Acids in Late Adolescence
- ClinicalTrials.gov ID
- NCT00044317
- Acronym / sponsor ID
- 8391-CP-001
- Conditions
- Airway Obstruction, Cough
- Keywords
- FEV, Smoking, antioxidents, lung growth
- Study type
- Observational
- Recruitment status
- Completed
- Enrolment
- 1,500 participants
- Lead sponsor
- National Institute of Environmental Health Sciences (NIEHS)US National Institutes of Health
- First posted
- 27 Aug 2002 (estimated)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
This study was designed to follow a group of adolescents who were previously examined by questionnaire and pulmonary function tests when they were aged 8-10 years old. Approximately 50% of the population in 10 towns were seen again at age 17-18. Questionnaires and pulmonary function were repeated. The hypotheses being tested related to whether the previously seen levels of pulmonary function that were related to pollution levels in the towns persisted as the lungs of these children grew and whether dietary antioxidants influences level of attained pulmonary function.
Study design
- Observational model
- Defined population
- Time perspective
- Other
Who may qualify
- Ages
- 16 to 19 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Child, Adult
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Primary outcome
Not reported in the source record.
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 24 Jun 2005.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
The record lists no contact. Use the official record to reach the sponsor.
Questions about this trial
What is this clinical trial studying?
An observational study of Airway Obstruction and Cough, run by National Institute of Environmental Health Sciences (NIEHS).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 24 Jun 2005. Status can change between updates, so confirm with the study contact before making plans.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 24 Jun 2005.