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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

Eligibility

Eligible Ages
Between 18 Years and 80 Years
Eligible Sex
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  1. 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

  1. 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

ArmDescriptionAssigned 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
  • Drug: [68Ga]CBP8
    Participants will receive a single intravenous injection of up to 350 MBq of [68Ga]CBP8
  • Drug: Gadoterate Meglumine
    Participants will receive a single intravenous injection of 0.05 mmol/kg gadoterate meglumine during DCE-MRI

Recruiting Locations

Massachusetts General Hospital
Boston, Massachusetts 02114
Contact:
Sydney Montesi
617 643 3260
cfromson@mgh.harvard.edu

More Details

Status
Recruiting
Sponsor
Peter Caravan

Study Contact

Sydney Montesi, MD
617 724 4030
sbmontesi@mgb.org

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.

Notice

Study information shown on this site is derived from ClinicalTrials.gov (a public registry operated by the National Institutes of Health). The listing of studies provided is not certain to be all studies for which you might be eligible. Furthermore, study eligibility requirements can be difficult to understand and may change over time, so it is wise to speak with your medical care provider and individual research study teams when making decisions related to participation.