An observational study in Lung Diseases and Sarcoidosis, sponsored by National Heart, Lung, and Blood Institute (NHLBI). Completed. Open to participants aged Up to 100 Years. Per ClinicalTrials.gov, last updated 2016-03-25.
Sponsored by National Heart, Lung, and Blood Institute (NHLBI) · Observational
To test specific hypotheses concerning environmental, occupational, lifestyle, and other risk factors for sarcoidosis. Also, to examine the familial aggregation of sarcoidosis and to test genetic hypotheses concerning its etiology. Finally, to describe the natural history of sarcoidosis, particularly in African-Americans who appear to be disproportionately affected, and to implement a system for storing biological specimens including blood cells, plasma, and serum.
BACKGROUND:
Sarcoidosis is a systemic granulomatous disorder of unknown etiology. While recognized as a distinct clinical entity for over a century, information on incidence, prevalence, risk factors, and natural history in the United States remains quite limited. Data available on the occurrence in the United States indicate that the incidence ranges from about 1 to 10 per 100,000 and prevalence from about 5 to 50 per 100,000. Incidence appears highest for young adults, ages 25 to 40, higher in females than males, and much greater in African Americans than other ethnic groups. Morbidity from this chronic disease is not well estimated by mortality data. In 1981, there were over 10,000 discharges from United States hospitals for sarcoidosis. Like mortality data, the hospital discharge information probably substantially underestimates the morbidity associated with sarcoidosis which is typically managed on an outpatient basis.
The Requests for Proposals were issued in September, 1994. Awards were made in June, 1995.
DESIGN NARRATIVE:
Each of ten clinical centers enrolled patients with sarcoidosis. Because population-based case-finding mechanisms have not been widely implemented for sarcoidosis, an institution-based rather than a population-based design was used. Participating institutions were located in geographic regions where the disease was known and ethnic and gender factors could be addressed. Several investigator-initiated studies were carried out.
In addition to etiology, ACCESS examined the socioeconomic status and clinical course of patients with sarcoidosis. Newly diagnosed cases of sarcoidosis were compared to age, sex, and race matched controls. Leads to the etiology of sarcoidosis have come from diverse sources: in clinical laboratory investigations, alveolitis has been found to precede granulomatous inflammation; in case control studies, familial aggregation has been identified; and in case reports, recurrence of granulomatous inflammation has been observed after lung transplantation.
3,303 studies on the registry are indexed under Lung Diseases; 355 are open to participants now.
Browse Lung Diseases studies →National Heart, Lung, and Blood Institute (NHLBI) is the lead sponsor of 1,117 studies on the registry; 71 are open to participants now.
Of its 57 completed or terminated interventional studies of FDA-regulated products, 49 (86%) have results posted.
Counted across the registry records on this site, refreshed daily.
No eligibility criteria
No study locations are listed for this record.
This study is completed, as verified in Dec 2005. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
National Heart, Lung, and Blood Institute (NHLBI)