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Clinical trialNCT00740337CompletedObservational

Factors That Affect the Development of COPD Symptoms

SponsorWashington University School of MedicineEnrollment82Pulmonary Disease, Chronic Obstructive
View the registry record on ClinicalTrials.gov

Summary

The lay summary the sponsor registered on ClinicalTrials.gov.

Chronic obstructive pulmonary disease (COPD) is the fourth most common cause of death in the United States. There is no cure and the disease gets worse over time. Although it usually occurs in people who smoke cigarettes, researchers do not know exactly how smoking leads to COPD. This study will compare blood and tissue samples from smokers and nonsmokers with and without COPD to determine why some COPD symptoms occur in some people and not others.
clinicaltrials.gov ↗

Investigators

The overall officials registered on this study. Names that resolve to a findmyKOL profile link to it; the rest are shown as registered.

  • Michael J. Holtzman, MD

    Pulmonary and Critical Care, Washington University School of Medicine

    Principal Investigator
    clinicaltrials.gov ↗

A profile link is shown only when the registered name resolves to a person record with a confident, namesake-checked match; ambiguous names stay unlinked.

Sites

1 registered facility, with the per-site recruitment status where the registry publishes one. ClinicalTrials.gov does not publish per-site enrollment counts.

United States
  • Washington University School of Medicine

    St Louis, Missouri, United States

Site investigator names are published by ClinicalTrials.gov only while a study recruits, so completed studies list sites without them.

Drugs studied

No drug or biological interventions are in our data for this study. It may test a procedure, device or behavioral intervention, or the intervention list isn't in our current snapshot. See the registry record ↗. Why? →

Registration & key dates

Registry attributes as recorded on the ClinicalTrials.gov study record.

Start
31 Oct 2007
Primary completion
29 Feb 2016
Completion
29 Feb 2016
Last update posted
18 Jun 2018
Registered enrollment
82
Registry id
NCT00740337
clinicaltrials.gov ↗

Source: ClinicalTrials.gov, via the CTTI AACT database, data as of 24 Aug 2026. Registry facts are shown as registered by the study sponsor; findmyKOL does not interpret them.