18FDG-PET Imaging to Detect Changes in Airways Inflammation in Cystic Fibrosis Patients

October 3, 2018 updated by: Felix Ratjen, The Hospital for Sick Children

A Pilot Study of 18FDG-PET Imaging to Detect Changes in Airways Inflammation in Cystic Fibrosis Patients After Treatment for a Pulmonary Exacerbation

The purpose of this study is to determine if 18Fluorodeoxyglucose (FDG) Positron Emission Tomography (PET) imaging can detect changes in airways inflammation in Cystic Fibrosis (CF) patients after treatment for a pulmonary exacerbation.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Neutrophils play a key role in the pathogenesis of CF lung disease. We know that neutrophilic inflammation is related to a decline in pulmonary function. Therefore, early anti-inflammatory intervention is an opportunity to slow this irreversible pulmonary destruction. However, the development of sensitive, non-invasive diagnostic tools of airways inflammation is essential to the study and implementation of anti-inflammatory therapies. Our current armentarium of measures of airways inflammation is limited. BAL is invasive and not clinically acceptable as a tool for the serial measurement of inflammation. Sputum samples are highly variable and not reliable.

18FDG-PET is a promising tool because it is non invasive, has been shown to quantify the amount and location of neutrophilic inflammation and has the potential to be used to track inflammation over time. Therefore, the goal of this research study is to evaluate the ability of 18FDG -PET imaging to detect changes in airways inflammation in CF patients in response to conventional treatment for a pulmonary exacerbation

Study Type

Interventional

Enrollment (Actual)

20

Phase

  • Phase 3

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

  • Canada
    • Ontario
      • Toronto, Ontario, Canada
        • The Hospital for Sick Children

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

6 years to 18 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Diagnosis of CF as defined by two or more clinical features of CF and a documented sweat chloride > 60mEq/L by quantitative pilocarpine iontophoresis test or a genotype showing two well characterized disease causing mutations
  • Informed consent and verbal assent (as appropriate) provided by the subject's parent or legal guardian and the subject
  • Ages 6-18 and able to perform reproducible spirometry
  • Admission to the Hospital for Sick Children for a pulmonary exacerbation

Exclusion Criteria:

  • Inability to perform reproducible spirometry
  • Diagnosis of Cystic Fibrosis Related Diabetes (CFRD)
  • Medical instability that would preclude the ability to perform PET imaging
  • FEV1% predicted < 40%
  • The use of supplementary oxygen
  • Pregnancy or breastfeeding
  • Severe claustrophobia

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

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 1
Other: 18-FDG
The administered intravenous dose of 18-FDG is 0.14mCi/kg up to a maximum of 10mCi before each PET imaging scan is performed.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Time Frame
Change in airways inflammation detected by 18FDG -PET from baseline
Time Frame: Measured at end of treatment (day 14)
Measured at end of treatment (day 14)

Secondary Outcome Measures

Outcome Measure
Time Frame
Correlation of pre and post 18FDG-PET data with lung function (FEV1, FEF 25-75 and FVC), sputum neutrophil count and sputum free elastase
Time Frame: Measured at end of treatment (day 14)
Measured at end of treatment (day 14)

Collaborators and Investigators

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

Sponsor

The Hospital for Sick Children

Investigators

  • Principal Investigator: Felix Ratjen, MD, The Hospital for Sick Children

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

April 1, 2008

Primary Completion (Actual)

April 1, 2010

Study Completion (Actual)

April 1, 2010

Study Registration Dates

First Submitted

May 8, 2008

First Submitted That Met QC Criteria

May 22, 2008

First Posted (Estimate)

May 26, 2008

Study Record Updates

Last Update Posted (Actual)

October 5, 2018

Last Update Submitted That Met QC Criteria

October 3, 2018

Last Verified

October 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 1000011762

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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