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18FDG- PET/CT Contribution to the Assessment of Lesion Severity in Cystic Fibrosis (CF)

This study has been completed.
Information provided by:
Hadassah Medical Organization Identifier:
First received: August 10, 2006
Last updated: May 19, 2009
Last verified: August 2006
Cystic fibrosis (CF) is an autosomal recessive disorder caused by mutations in the CF trans-membrane conductance regulator (CFTR) protein. CF is the most common inherited disease of Caucasians, with a carrier frequency of 1 in 25-30 individuals. Even with the impressive advances achieved in the understanding of the molecular basis and physiopathology of CF, it remains a life-threatening disorder that causes severe lung damage and nutritional deficiencies. It is generally accepted that early therapy could delay the progression of lung disease. A number of non-invasive methods are available to monitor disease activity in CF patients; however none of the currently used tools are able to monitor real-time events. Recently high resolution computed tomography (HRCT) has been used to monitor changes in lung structure. However, HRCT does not allow differentiating between acute and chronic lesions. Positron emission tomography (PET) with 18fluoro-deoxy-glucose (FDG) has already been used in a variety of settings to visualize inflammation or infection. FDG-PET imaging appears to be a promising new tool to quantify inflammation as it can detect clinically relevant changes even when no changes or minimal ones are detected by morphologic imaging. PET/CT may consequently be used to evaluate the severity of lung inflammation/infection in CF patients, and therefore the aim of this study is to evaluate the use of PET/CT for the assessment of the severity of lung inflammation/ infection in CF patients.

Condition Intervention
Cystic Fibrosis Procedure: PET-CT

Study Type: Interventional
Study Design: Allocation: Non-Randomized
Intervention Model: Single Group Assignment
Masking: Single
Primary Purpose: Diagnostic
Official Title: 18FDG- PET/CT Contribution to the Assessment of Lesion Severity in Cystic Fibrosis (CF

Resource links provided by NLM:

Further study details as provided by Hadassah Medical Organization:

Primary Outcome Measures:
  • Improved diagnosis of CF patients
  • Real-time follow up of treatment

Estimated Enrollment: 20
Study Start Date: August 2006
Study Completion Date: December 2007
Primary Completion Date: August 2007 (Final data collection date for primary outcome measure)
Detailed Description:

Cystic fibrosis patients with active lung disease will undergo a high resolution PET-CT.PET/CT scans (GE ST Discovery PET/CT scanner) will be performed 60 to 90 minutes after injection of 5 MBq/kg of FDG. PET/CT will be repeated at the end of the treatment and compared with the results of the initial scan. PET and CT will be interpreted by a certified nuclear medicine physician and by a certified radiologist, respectively, blinded to clinical data, using the PET severity score (PSS), based on the number and the intensity of FDG uptake of lung foci. Intensity of uptake will be determined by calculating the mean value for the maximum standardized uptake values (MSUV) of all foci.

(SUV = Activity concentration in ROI (region of interest) divided by injected dose / patient body weight). SUV will be measured in normal lungs to receive the normal baseline control for the calculations. The correlation with clinical data (FEV1% predicted) and sputum bacteriology will then be performed. Inflammation status will also be followed by cytokine analysis.


Ages Eligible for Study:   10 Years and older   (Child, Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:CF patients with active lesions in their lungs -

Exclusion Criteria:pregnancy,

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Please refer to this study by its identifier: NCT00363402

Hadassah Medical Organization
Jerusalem, Israel, 24035
Sponsors and Collaborators
Hadassah Medical Organization
Study Director: Eitan Kerem, MD Hadassah Medical Organization
  More Information

Responsible Party: Arik Tzukert, DMD, Hadassah Medical Organization Identifier: NCT00363402     History of Changes
Other Study ID Numbers: PETCT-HMO-CTIL
Study First Received: August 10, 2006
Last Updated: May 19, 2009

Keywords provided by Hadassah Medical Organization:
Cystic Fibrosis

Additional relevant MeSH terms:
Cystic Fibrosis
Pathologic Processes
Pancreatic Diseases
Digestive System Diseases
Lung Diseases
Respiratory Tract Diseases
Genetic Diseases, Inborn
Infant, Newborn, Diseases processed this record on September 20, 2017