Quantitation and Spatial Registration of Airways Dysfunction With Dynamic 19F MRI in Cystic Fibrosis
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ClinicalTrials.gov Identifier: NCT06057714 |
Recruitment Status :
Recruiting
First Posted : September 28, 2023
Last Update Posted : September 29, 2023
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Condition or disease | Intervention/treatment |
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Cystic Fibrosis Ventilatory Defect | Combination Product: 19F MRI |
Study Type : | Observational |
Estimated Enrollment : | 30 participants |
Observational Model: | Case-Only |
Time Perspective: | Cross-Sectional |
Official Title: | Quantitation and Spatial Registration of Airways Dysfunction With Dynamic 19F MRI in Cystic Fibrosis |
Actual Study Start Date : | January 20, 2021 |
Estimated Primary Completion Date : | December 2025 |
Estimated Study Completion Date : | December 2025 |
Group/Cohort | Intervention/treatment |
---|---|
All Participants
All subjects to receive inhaled perfluoropropane via standard Douglas bag at every visit (3-5 visits). They will breathe the gas for 5 breath hold cycles (variable volumes as lung capacity/size varies per participant). Not to exceed 30 liters inhaled at each visit as this is the max capacity of our Douglas bag.
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Combination Product: 19F MRI
Inhalation of a biologically inert contrast gas, perfluoropropane, combined with 19F-tuned MRI with image acquisition at breath-hold and during tidal breathing
Other Name: Perfluoropropane (PFP) |
- Change in Ventilation Defect Parameter (VDP) over 14 days [ Time Frame: Day 1 to Day 14 ]VDP measured at Day 1 and Day 14, expressed as a percentage of total lung volume
- Change in VDP over 365 days [ Time Frame: Day 1 to Day 365 (+/- 30 days) ]Average of VDP measured at Day 1 and Day 14; subtracted from VDP at Day 365, expressed as a percentage of total lung volume
- Change in FLVlongtau2 over 14 days [ Time Frame: Day 1 to Day 14 ]FLVlongtau2 measured at Day 1 and Day 14, expressed as a percentage of total lung volume
- Change in FLVlongtau2 over 365 days [ Time Frame: Day 1 to Day 365 (+/- 30 days) ]Average of FLVlongtau2 measured at Day 1 and Day 14; subtracted from FLVlongtau2 at Day 365, expressed as a percentage of total lung volume
- Change in VDP occurring with a protocol-defined CF pulmonary exacerbation [ Time Frame: Day 1 to Day 365 (+/- 30 days) ]Difference in VDP between baseline and exacerbation visit 1, expressed as a percentage of total lung volume.
- Change in FLVlongtau2 occurring with a protocol-defined CF pulmonary exacerbation [ Time Frame: Day 1 to Day 365 (+/- 30 days) ]Difference in FLVlongtau2 between baseline and exacerbation visit 1, expressed as a percentage of total lung volume.
- Change in MRI severity score over 365 days [ Time Frame: Day 1 to Day 365 (+/- 30 days) ]Change in MRI severity score from baseline to Day 365.
- Correlation of MRI severity score with VDP at baseline. [ Time Frame: Day 1 to Day 14 ]
Baseline is a mean of the VDP scores from Day 1 and Day 14 (expressed as percentage of lung).
Correlation of MRI scores with VDP and FLVlongtau2
- Correlation of MRI severity score with FLVlongtau2 at baseline. [ Time Frame: Day 1 to Day 14 ]
Baseline is a mean of the FLVlongtau2 scores from Day 1 and Day 14 (expressed as percentage of lung).
Correlation of MRI scores with VDP and FLVlongtau2
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Ages Eligible for Study: | 18 Years to 99 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Sampling Method: | Non-Probability Sample |
Inclusion Criteria:
- Subjects must be ≥18 years of age
- Non-smokers (<10 pack/year history and no active smoking in the past year)
- Diagnosis of cystic fibrosis via standard sweat chloride/phenotypic features/genotyping
- No use of supplemental oxygen
- Stable lung function (within 10% of personal best in the last 6 months) with no pulmonary exacerbations in the past 4 weeks and baseline FEV1≥60% of predicted
- Evidence of a personally signed and dated consent indicating that the subject has been informed of all pertinent aspects of the trial
- Subjects must be willing and able to comply with scheduled visits and other trial procedures
Exclusion Criteria:
Subjects presenting with any of the following will not be included in the trial:
- Active or past smokers or vapers with less than 1 year since quitting or >10 pack-year smoking history
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Unable to undergo a 3.0-Tesla MRI exam of the lungs and chest because of contraindications including
- Occupation (past or present) of machinist, welder, or grinder;
- Injury to the eye involving a metallic object
- Injury to the body by a metallic object (bullet, bullet ball, shrapnel)
- Presence of a cardiac pacemaker or defibrillator
- Presence of aneurysm clips
- Presence of carotid artery vascular clamp
- Presence of neurostimulator
- Presence of insulin or infusion pump
- Presence of implanted drug infusion device that is not known to be MRI compatible (i.e., was placed outside of UNC or is older than 10 years)
- Bone growth or fusion simulator
- Presence of cochlear, otologic or ear implant
- Any type of prosthesis (eye, penile, etc.)
- Artificial limb or joint
- Non-removable electrodes (on body, head or brain)
- Intravascular stents, filters or coils
- Shunt (spinal or intraventricular)
- Swan-Ganz catheter
- Any implant held in place by a magnet
- Transdermal delivery system (e.g. Nitro)
- An intrauterine device or diaphragm that is not MRI compatible
- Tattooed makeup (eyeliner, lips, etc.) or tattoos covering >25% of body surface area
- Body piercings (must be removed before MRI)
- Any metal fragments
- Internal pacing wires
- Metal or wire mesh implants
- Hearing aid (remove before MRI) aa. Dentures (remove before MRI) bb. Claustrophobia
- Unable to tolerate inhalation of gas mixture
- Presence of facial hair that may interfere with the fit of the mask (and unwillingness to shave prior to each MRI)
- Any changes in medications that may affect CF lung disease in the past 28 days, including any experimental therapies
- Other severe acute or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with trial participation or may interfere with the interpretation of trial results and, in the judgment of the investigator, would make the subject inappropriate for entry into this trial.
- Pregnancy; women of childbearing potential must have a confirmed negative urine pregnancy test on the day of the MR scan, prior to the MRI scan.
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): NCT06057714
Contact: Jennifer L Goralski, MD | 919-445-0331 | jennifer_goralski@med.unc.edu | |
Contact: Margret Z Powell, BS | 984-974-2962 | margret_powell@med.unc.edu |
United States, North Carolina | |
Univeristy of North Carolina at Chapel Hill | Recruiting |
Chapel Hill, North Carolina, United States, 27514 | |
Contact: Jennifer L Goralski, MD 919-445-0331 jennifer_goralski@med.unc.edu | |
Principal Investigator: Jennifer L Goralski, MD |
Principal Investigator: | Jennifer L Goralski, MD | UNC Chapel Hill |
Responsible Party: | University of North Carolina, Chapel Hill |
ClinicalTrials.gov Identifier: | NCT06057714 |
Other Study ID Numbers: |
20-1233 5K23HL138257-03 ( U.S. NIH Grant/Contract ) |
First Posted: | September 28, 2023 Key Record Dates |
Last Update Posted: | September 29, 2023 |
Last Verified: | September 2023 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Cystic Fibrosis Fibrosis Pathologic Processes Pancreatic Diseases Digestive System Diseases |
Lung Diseases Respiratory Tract Diseases Genetic Diseases, Inborn Infant, Newborn, Diseases |