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Completed No phase listed Observational Accepts healthy volunteers

Modulation of Genes Responsible for Cilia Length by Exposure to Cigarette Smoke

ClinicalTrials.gov ID: NCT02168673

Public ClinicalTrials.gov record NCT02168673. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Nov 11, 2026, 4:55 AM EST

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Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

Cigarette smoking is the major risk factor for developing chronic obstructive pulmonary disease (COPD). Patients with COPD have difficulty clearing mucus and debris from their airways. Even smokers who have not developed COPD may have difficulty clearing the airways. This is partly because smoking impairs the function of cilia, tiny hairs lining the airways that sweep out mucus to keep the airways clean. The investigators have found that smoking reduces the length of cilia, which may contribute to the worsened cilia function in smoking and COPD. This is true even in smokers who show no signs of lung disease. The investigators believe that smoking affects levels of genes in lung cells, resulting in shorter cilia.

Study identification

NCT ID
NCT02168673
Recruitment status
Completed
Study type
Observational
Phase
Not listed
Enrollment
1 participant

Conditions and interventions

Conditions

Interventions

Not listed

Eligibility (public fields only)

Age range
18 Years and older
Sex
All
Healthy volunteers
Accepts healthy volunteers

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
Apr 2011 (Type not available)
Primary completion
Apr 2015 (Actual)
Completion
Apr 2015 (Actual)
Last update posted
May 2, 2016

2011 – 2015

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT02168673, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted May 2, 2016 · Synced Nov 11, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT02168673 live on ClinicalTrials.gov.

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