Longitudinal Study of Cortisol and Pulmonary Function

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00005370
Recruitment Status : Completed
First Posted : May 26, 2000
Last Update Posted : May 13, 2016
Information provided by:
National Heart, Lung, and Blood Institute (NHLBI)

Brief Summary:
To conduct a longitudinal study of the relationship between the rate of decline of pulmonary function and measurements of cortisol concentration and excretion in a sample of middle-aged and older men and their wives. The study tested the hypothesis that persons whose plasma cortisol concentrations were relatively low, albeit within the normal range, were predisposed to excessively rapid deterioration of pulmonary function during aging.

Condition or disease
Lung Diseases, Obstructive Chronic Obstructive Pulmonary Disease

Detailed Description:


It was hoped that the study would provide important insights into the pathogenesis of chronic obstructive pulmonary disease with potential implications for prevention and early therapeutic intervention.


All subjects participating in the Normative Aging Study were recruited for the study at the time of their next scheduled examination. Twenty-four hour urinary excretion of free cortisol, morning serum cortisol concentration, and pre- and post-bronchodilator spirometric indices were measured. For the 700 subjects who were recruited during years one and two of the study, these measurements were repeated when subjects returned for their next triennial examination in years four and five of the study. Respiratory illness and smoking questionnaire data, total and differential leukocyte counts, and methacholine inhalation challenge test data were also available at both time points. The specific aims of the study were to examine: (1) the cross-sectional relationship between level of pulmonary function and both morning serum cortisol concentration and 24-hour urinary free cortisol excretion; (2) the relationship between the rate of decline of pulmonary function during the follow-up interval and these measurements of cortisol concentration and excretion; (3) whether these relationships were modified by smoking history, blood total leukocyte count, methacholine airway responsiveness, or other characteristics; and (4) the stability over time of serum cortisol concentration and urinary cortisol excretion in this aging population.

The study completion date listed in this record was obtained from the "End Date" entered in the Protocol Registration and Results System (PRS) record.

Study Type : Observational
Study Start Date : April 1993
Actual Study Completion Date : March 1999

Information from the National Library of Medicine

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Ages Eligible for Study:   up to 100 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
No eligibility criteria Identifier: NCT00005370     History of Changes
Other Study ID Numbers: 4261
R01HL049869 ( U.S. NIH Grant/Contract )
First Posted: May 26, 2000    Key Record Dates
Last Update Posted: May 13, 2016
Last Verified: November 2001

Additional relevant MeSH terms:
Lung Diseases
Lung Diseases, Obstructive
Pulmonary Disease, Chronic Obstructive
Respiratory Tract Diseases