Non-Invasive Biomarkers in Cystic Fibrosis

December 18, 2006 updated by: Maastricht University Medical Center

Biomarkers in Exhaled Breath Indicate Presence, Control and Severity of Cystic Fibrosis

Background Chronic airway inflammation is present in cystic fibrosis. Non-invasive inflammometry may be useful in disease management.

Objective We studied 1) the ability of fractional exhaled nitric oxide and inflammatory markers (acidity, nitrite, nitrate, hydrogen peroxide, 8-isoprostane, interferon-γ, tumor necrosis factor-α, interleukin-2,-4,-5,-10) in exhaled breath condensate, to discriminate between cystic fibrosis and control children, and, 2) the relationship of biomarkers with control and severity of cystic fibrosis.

Methods In 98 children (48 cystic fibrosis / 50 controls), condensate was collected using a glass condenser. Exhaled nitric oxide was measured using the NIOX®.

Study Overview

Status

Completed

Conditions

Study Type

Observational

Enrollment

100

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Netherlands
      • Eindhoven, Netherlands
        • Catharina Hospital
      • Maastricht, Netherlands, 6202AZ
        • University Hospital Maastricht
      • Nijmegen, Netherlands
        • St Radboud Childrens Hospital
      • Veldhoven, Netherlands
        • Maxima Medical Centre

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

5 years to 25 years (Child, Adult)

Accepts Healthy Volunteers

Yes

Genders Eligible for Study

All

Description

Inclusion Criteria:

CF population

  • Children known with CF were recruited from the outpatient clinics. CF disease was defined as a combination of typical clinical features (e.g. persistent pulmonary problems, meconium ileus, failure to thrive, steatorrhoe) and an abnormal sweat test (Chloride > 60 mM). Uncontrolled CF was diagnosed by the paediatric pulmonologist based on a change in the presence or severity of respiratory symptoms in association with CF, and/or a decrease in lung function parameters compared to previous measurements during the last four weeks.

Control population

  • Control children without lung disease were recruited from the outpatient clinic of the University Hospital Maastricht. The reasons of consultation were constipation and enuresis nocturna. All children completed the 'International Study of Asthma and Allergies in Childhood (ISAAC) questionnaire to exclude children with any (history of) airway or allergy complaints, in order to exclude asthmatic disease

Exclusion Criteria:

For both study populations:

  • Diseases that may interfere with the results of the study (e.g. upper airway infection, heart disease, anatomic abnormalities of the airways and other chronic inflammatory diseases, such as Crohns disease and rheumatoid arthritis)
  • Mental retardation
  • Inability to perform the EBC collection procedure
  • Active smoking
  • Use of the following medication: papaverin, sodium nitroprusside, angiotensin-converting enzyme (ACE) inhibitors, oxymetazoline, L-arginine, or nitric oxide synthase (NOS) inhibitors.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Maastricht University Medical Center

Collaborators

AstraZeneca
Cystic Fibrosis Foundation

Investigators

  • Study Director: Edward Dompeling, MD, PhD, Maastricht University Medical Center
  • Study Director: Quirijn Jöbsis, MD, PhD, Maastricht University Medical Center
  • Principal Investigator: Charlotte M Robroeks, M, Maastricht University Medical Center

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2004

Study Completion

May 1, 2005

Study Registration Dates

First Submitted

December 18, 2006

First Submitted That Met QC Criteria

December 18, 2006

First Posted (Estimate)

December 19, 2006

Study Record Updates

Last Update Posted (Estimate)

December 19, 2006

Last Update Submitted That Met QC Criteria

December 18, 2006

Last Verified

November 1, 2003

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • MEC 03-228-CF

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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