Advanced Imaging to Assess the Effect of Immunosuppression on Progressive Fibrosis
Purpose
The purpose of this study is to investigate how immunosuppression treatment affects measurements of active collagen deposition using [68Ga]CBP8 positron emission tomography (PET) and tissue injury using dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) in individuals with non-idiopathic pulmonary fibrosis interstitial lung disease (non-IPF ILD).
Conditions
- Interstitial Lung Disease
- Pulmonary Fibrosis
Eligibility
- Eligible Ages
- Between 18 Years and 80 Years
- Eligible Sex
- All
- Accepts Healthy Volunteers
- No
Inclusion Criteria
- Age 18-80 with a diagnosis of chronic hypersensitivity pneumonitis, connective tissue-associated ILD (due to rheumatoid arthritis, systemic sclerosis, mixed connective tissue disease), or undifferentiated ILD. 2. Starting immunosuppression treatment with mycophenolate mofetil, mycophenolate sodium, and / or prednisone for clinically indicated non-IPF ILD treatment. 3. Pulmonary fibrosis, defined as honeycombing, traction bronchiectasis, or reticular opacities on high-resolution computed tomography (HRCT) performed within 1 year to or at Visit 1. 4. Forced vital capacity (FVC) of >/= 45% and diffusing capacity of the lungs for carbon monoxide (DLCO) >/= 25% predicted on PFTs performed at Visit 1.
Exclusion Criteria
- Current or prior exposure to FDA approved anti-fibrotic therapy. 2. Extent of emphysema greater than extent of fibrosis. 3. Pregnancy or plans to become pregnant at baseline or during follow-up. 4. Contraindications to MRI. 5. Contraindications to receiving gadolinium-based contrast agents. 6. Research-related radiation exposure exceeds 50 millisievert (mSv) in the prior year. 7. Estimated glomerular filtration rate (eGFR) < 30 mL/min (only for individuals with a history of chronic kidney disease). 8. Clinically significant pulmonary hypertension (PH) defined by use of pulmonary vasodilatory therapy. 9. Respiratory infection within the prior 6 weeks. 10. Smoking of any kind within the prior 6 months.
Study Design
- Phase
- Phase 2
- Study Type
- Interventional
- Allocation
- N/A
- Intervention Model
- Single Group Assignment
- Primary Purpose
- Diagnostic
- Masking
- None (Open Label)
Arm Groups
| Arm | Description | Assigned Intervention |
|---|---|---|
|
Experimental Participants with Pulmonary Fibrosis |
Participants with non-idiopathic pulmonary fibrosis interstitial lung disease (non-IPF ILD) will receive [68Ga]CBP8 and undergo PET combined with dynamic contrast-enhanced MRI prior to and 12 weeks after starting clinically-prescribed immunosuppression for treatment of non-IPF ILD |
|
Recruiting Locations
Massachusetts General Hospital
Boston, Massachusetts 02114
Boston, Massachusetts 02114
More Details
- Status
- Recruiting
- Sponsor
- Peter Caravan
Detailed Description
15 different subjects with non-IPF ILD starting immunosuppression treatment for their underlying ILD will be enrolled. Participants will undergo [68Ga]CBP8 PET and DCE-MRI prior to and 12 weeks after treatment initiation to determine the effects of immunosuppressive treatment on PET measurements of collagen deposition and selected DCE-MRI-derived measurements.