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Active, not recruiting No phase listed Observational Accepts healthy volunteers

Epidemiology of Sleep-Disordered Breathing in Adults

ClinicalTrials.gov ID: NCT00005557

Public ClinicalTrials.gov record NCT00005557. 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 Sep 8, 2026, 9:16 PM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Brief summary

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

To characterize the natural history and biologic spectrum of sleep disordered breathing (SDB) and other sleep problems and disorders, and test hypotheses regarding the causes and consequences of SDB and other sleep problems and disorders.

Study identification

NCT ID
NCT00005557
Recruitment status
Active, not recruiting
Study type
Observational
Phase
Not listed
Enrollment
1,545 participants

Conditions and interventions

Eligibility (public fields only)

Age range
30 Years to 95 Years
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
Mar 31, 1999
Primary completion
Mar 31, 2028
Completion
Mar 31, 2031
Last update posted
Oct 21, 2025

1999 – 2031

United States locations

U.S. sites
1
U.S. states
1
U.S. cities
1
Facility City State ZIP Site status
University of Wisconsin Hospital and Clinics Madison Wisconsin 53705

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 NCT00005557, 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 Oct 21, 2025 · Synced Sep 8, 2026

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Open the official record

The complete protocol, eligibility criteria, and contact information for NCT00005557 live on ClinicalTrials.gov.

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