Cross-sectional Characterization of Idiopathic Bronchiectasis

NCT01264055 | Completed

• 2 other identifiers: 11004611-H-0046
• Study Type: observational
• Target: 275
• Locations: 2 countries
• Sites: 6

Brief Summary

Background: \- Bronchiectasis is a type of lung condition in which the lungs airways are abnormally stretched and widened. This stretching and widening makes it difficult for mucus and other substances to move out of the lungs, encouraging the growth of bacteria and leading to breathing problems or infection. Bronchiectasis can be caused by genetic disorders or diseases such as tuberculosis or rheumatoid arthritis. Researchers are interested in developing better ways to diagnose and treat a lung problem called idiopathic or unexplained bronchiectasis. Objectives: \- To better describe the physical characteristics, radiographic patterns, and airway microbiology of unexplained bronchiectasis and to look for possible genetic links or risk factors. Eligibility:

• Individuals at least 18 years of age who have a chronic cough and who have had a CT scan that has revealed signs of bronchiectasis.
• Current smokers or those who have smoked for at least 10 years, as well as individuals who have known causes of bronchiectasis or who have had organ transplants, are not eligible to participate. Design:
• Participants will have one outpatient clinic visit for evaluation with a physical examination including detailed body size measurements and medical history and for collection of blood samples for routine lab tests and genetic analyses and a chest x-ray if no recent one is available.
• Participants will also have tests of lung function, and measurement of a gas called nitric oxide in the nose. Participants whose initial tests show abnormal results may also be asked to have a nasal scrape to collect cell samples and/or a skin sweat test to measure salt concentrations.
• Participants will also have a sputum specimen collected during the visit and will be asked to collect two additional early morning sputum samples and a mouth rinse at home within 2 weeks of the clinic visit, and mail the sample collection materials to the research team.

Conditions

Bronchial Diseases; Infection; Respiratory Tract Diseases

Keywords

Rare Disease of Airways; Chronic Cough; Nontuberculous Mycobacteriam Infection; Natural History; Bronchiectasis; Idiopathic Bronchiectasis

Outcome Measures

Primary Outcomes (1)

• Clinical characteristics by gender and NTM

  Clinical characteristics by gender and NTM status including body morphotypes, radiographic patterns, and respiratory flora

  30 years

Secondary Outcomes (1)

• Seek to define Genotype/phenotype

  30 years

Study Arms (1)

1

Adults with idiopathic bronchiectasis

Eligibility Criteria

• Age: 18 Years - 100 Years
• Sex: all
• Healthy Volunteers: No
• Age Groups: Adult (18-64), Older Adult (65+)
• Sampling Method: Probability Sample

Study Population

Adults with idiopathic bronchiectasis, with stratification by gender and by presence/absence of respiratory infection with nontuberculous mycobacteria (NTM)

You may qualify if:

• The criteria for participants to enter the study mandates that each patient have received a standard (current clinical practice) diagnostic evaluation that includes a CT scan of the chest to document bronchiectasis, prior to enrolling in the Consortium study. To enter this protocol, adults must have bronchiectasis and meet the following criteria:
• Males or females, age greater than or equal to18 years
• Chronic cough
• An available CT of the chest (on a CD) that shows evidence of dilated airways fulfilling radiographic criteria for bronchiectasis in more than one lobe
• Ability to provide informed consent, including HIPAA consent

You may not qualify if:

• A participant should not be in the study if they have not had a standard clinical evaluation to rule out other potential causes of chronic sino-pulmonary disease.
• Known diagnosis of cystic fibrosis with classic clinical presentation and elevated sweat chloride levels and/or two known disease-causing CFTR mutations
• History of tuberculosis or other known explanation for bronchiectasis, such as alpha 1-antitrypsin deficiency (ZZ or ZS), confirmed or probable PCD, inflammatory bowel disease, rheumatoid arthritis, Sjogren s syndrome, allergic bronchopulmonary aspergillosis, or documented primary or acquired immunodeficiency
• Current smoker or \> 10 pack-year history of tobacco use
• Prior solid organ transplant

Sponsors & Collaborators

• National Heart, Lung, and Blood Institute (NHLBI): lead

Study Sites (6)

Stanford Medical Center

Stanford, California, 94305, United States

Location

National Jewish Health

Denver, Colorado, 80206, United States

Location

National Institutes of Health Clinical Center

Bethesda, Maryland, 20892, United States

Location

Washington University, St. Louis

St Louis, Missouri, 63110, United States

Location

University of North Carolina at Chapel Hill

Chapel Hill, North Carolina, 27514, United States

Location

St. Michael's Hospital

Toronto, Canada

Location

Related Publications (1)

• Wanner A, Salathe M, O'Riordan TG. Mucociliary clearance in the airways. Am J Respir Crit Care Med. 1996 Dec;154(6 Pt 1):1868-902. doi: 10.1164/ajrccm.154.6.8970383. No abstract available.

  PMID: 8970383 BACKGROUND

Related Links

• NIH Clinical Center Detailed Web Page

MeSH Terms

Conditions

Infections; Bronchial Diseases; Respiratory Tract Diseases; Chronic Cough; Bronchiectasis

Condition Hierarchy (Ancestors)

Cough; Respiration Disorders; Signs and Symptoms, Respiratory; Signs and Symptoms; Pathological Conditions, Signs and Symptoms

Study Officials

• Andrew J Lipton, M.D.

  National Heart, Lung, and Blood Institute (NHLBI)

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: observational
• Observational Model: COHORT
• Time Perspective: CROSS SECTIONAL
• Sponsor Type: NIH
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: December 18, 2010
• First Posted: December 21, 2010
• Study Start: April 26, 2011
• Last Updated: January 5, 2026

Record last verified: 2025-07-08

Locations

CA (1); US (5)