The Role of Bacteria and Genetic Variations in Cystic Fibrosis
|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. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT00043225|
Recruitment Status : Recruiting
First Posted : August 7, 2002
Last Update Posted : November 27, 2017
This study will examine 1) the role of hereditary factors in cystic fibrosis; i.e., the relationship of the disease to specific gene variations, and 2) the role of bacterial products involved in lung infections substances produced by bacteria may worsen the disease.
Patients with cystic fibrosis who are being followed by the Medical College of Wisconsin or the University of Wisconsin-Madison are eligible for this study. Participants will have blood tests, pulmonary function tests, a sputum culture, and buccal swabbing (cotton swabbing of the inside of the cheek to collect cells for DNA study). In addition, their medical records will be reviewed for a history of lung infections and the results of various tests, including pulmonary function studies, chest X-rays and bacterial cultures. Blood samples collected previously at the Medical College of Wisconsin or the University of Wisconsin-Madison will also be analyzed for antibodies to bacteria.
Although this is a one-time study, participants may be asked to return for repeated tests.
|Condition or disease|
Individuals with cystic fibrosis (CF) are susceptible to chronic bacterial colonization by Pseudomonas aeruginosa, which results in deterioration of lung function and, eventually, death. In this study, we hope to improve our understanding of the innate immune response to infection by strains of P. aeruginosa that express type III cytotoxins and to delineate better the role of modifier genes in disease progression.
We will examine relationships between the patient's clinical course, the presence of antibodies to P. aeruginosa, and single nucleotide polymorphisms in suspected CF modifier genes.
|Study Type :||Observational|
|Estimated Enrollment :||200 participants|
|Official Title:||Clinical Course in Cystic Fibrosis: The Effects of Pseudomonas Aeruginosa and Potential Modifier Genes|
|Study Start Date :||June 20, 2001|
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00043225
|Contact: Mary Haughey, R.N.||(301) firstname.lastname@example.org|
|Contact: Joel Moss, M.D.||(301) email@example.com|
|United States, Maryland|
|National Institutes of Health Clinical Center, 9000 Rockville Pike||Recruiting|
|Bethesda, Maryland, United States, 20892|
|Contact: For more information at the NIH Clinical Center contact Patient Recruitment and Public Liaison Office (PRPL) 800-411-1222 ext TTY8664111010 firstname.lastname@example.org|
|United States, Washington|
|University of Washington||Recruiting|
|Seattle, Washington, United States, 98195|
|United States, Wisconsin|
|University of Wisconsin||Recruiting|
|Madison, Wisconsin, United States, 53792|
|Medical College of Wisconsin||Recruiting|
|Milwaukee, Wisconsin, United States|
|Principal Investigator:||Joel Moss, M.D.||National Heart, Lung, and Blood Institute (NHLBI)|