# The Natural History of Gene Expression in the Lung Cells of Non-Smokers, Smokers and Ex-Smokers in Health and Disease

> **NCT00974064** · — · COMPLETED · sponsor: **Weill Medical College of Cornell University** · enrollment: 171 (actual)

## Conditions studied

- Chronic Obstructive Pulmonary Disease (COPD)
- Smoking
- Smoking Cessation
- Chronic Bronchitis
- Emphysema

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT00974064
- **Lead sponsor:** Weill Medical College of Cornell University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2009-08
- **Primary completion:** 2013-06
- **Final completion:** 2013-06
- **Target enrollment:** 171 (ACTUAL)
- **Last updated:** 2020-07-27


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00974064

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00974064, "The Natural History of Gene Expression in the Lung Cells of Non-Smokers, Smokers and Ex-Smokers in Health and Disease". Retrieved via AI Analytics 2026-06-02 from https://api.ai-analytics.org/clinical/NCT00974064. Licensed CC0.

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