Comparison Between Ultra-low-dose Computed Tomography and Lung MRI in Cystic Fibrosis (UBD-IRM)
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ClinicalTrials.gov Identifier: NCT04644471 |
Recruitment Status :
Recruiting
First Posted : November 25, 2020
Last Update Posted : September 27, 2022
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
Cystic Fibrosis | Diagnostic Test: CT scanner Diagnostic Test: Lung MRI | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 200 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Diagnostic |
Official Title: | Comparison Between Ultra-low-dose Computed Tomography and Lung MRI for Morphological Assessment of Lung Disease in Adult Cystic Fibrosis Patients |
Actual Study Start Date : | August 5, 2021 |
Estimated Primary Completion Date : | August 2023 |
Estimated Study Completion Date : | August 2023 |

- Diagnostic Test: CT scanner
1 conventional low dose inspiratory acquisition and 1 ultra-low-dose inspiratory acquisition
- Diagnostic Test: Lung MRI
3 UTE sequences (free breathing, inspiratory and expiratory) and 1 T2 sequence
- Reproducibility of visual score between imaging modalities [ Time Frame: 1 day ]Reproducibility disease severity measured by the Helbich scoring system with conventional CT as gold standard
- Intra and interobserver reproducibility of visual scores [ Time Frame: 1 day ]Intra and interobserver reproducibility of the Helbich score for each imaging modality
- Correlation between visual scores and pulmonary function [ Time Frame: 1 day ]Correlation between the Helbich score for each imaging modality and forced expiratory volume in 1 second (FEV1)
- Correlation between air trapping at MRI and pulmonary function test [ Time Frame: 1 day ]Correlation between air trapping, measured by comparing inspiratory to expiratory MRI images, and forced expiratory volume at one second (FEV1)

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Age ≥ 18 year-old
- Diagnosis of cystic fibrosis provided by genetic and swear test
- Chest CT acquisition performed as part of the standard follow-up
- Patient with social security or health insurance
- Informed consent
Exclusion Criteria:
- MRI contraindication
- Orthopnea
- Inability to hold breath for 17 seconds
- No spirometry planned the same day
- Lung transplant patient

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): NCT04644471
Contact: Guillaume CHASSAGNON, PhD | +33 1 58 41 53 66 | guillaume.chassagnon@aphp.fr | |
Contact: Adèle BELLINO | +33 158411195 | adele.bellino@aphp.fr |
France | |
Cochin hospital | Recruiting |
Paris, France, 75014 | |
Contact: Guillaume CHASSAGNON, PhD +33 1 58 41 53 66 guillaume.chassagnon@aphp.fr | |
Contact: Adèle BELLINO + 33 158411195 adele.bellino@aphp.fr |
Study Director: | Marie-Pierre REVEL, MD, PhD | Assistance Publique - Hôpitaux de Paris |
Responsible Party: | Assistance Publique - Hôpitaux de Paris |
ClinicalTrials.gov Identifier: | NCT04644471 |
Other Study ID Numbers: |
APHP190061 2019-A02078-49 ( Registry Identifier: ID-RCB ) |
First Posted: | November 25, 2020 Key Record Dates |
Last Update Posted: | September 27, 2022 |
Last Verified: | September 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | No |
Studies a U.S. FDA-regulated Device Product: | No |
Magnetic resonance imaging Multidetector computed tomography |
Cystic Fibrosis Fibrosis Pathologic Processes Pancreatic Diseases Digestive System Diseases |
Lung Diseases Respiratory Tract Diseases Genetic Diseases, Inborn Infant, Newborn, Diseases |