Scleroderma
Conditions
Brief summary
The purpose of this study is to test MRI methods for evaluating patients with Scleroderma-associated interstitial lung disease.
Detailed description
1. Quantify the sensitivity and specificity of UTE MRI in screening for scleroderma-associated interstitial lung disease. ILD is relatively common in SSc, but current clinical standards require screening using HRCT. UTE MRI can provide images of pulmonary structure with contrast and resolution approaching that of CT. We hypothesize that UTE MRI will have high sensitivity and specificity (\>80%) to the presence of ILD as determined by HRCT. Aim 2. Quantify treatment response in patients with SSc-ILD using hyperpolarized 129Xe MRI. The optimal treatment for SSc-ILD is not known, and it is challenging to assess the efficacy of therapy. Hyperpolarized 129Xe MRI is highly sensitive to the pathophysiology associated with ILD, which suggests that it may be more sensitive to treatment response than conventional methods. We hypothesize that hyperpolarized 129Xe MRI biomarkers will be sensitive to lung function improvement or decline earlier than standard clinical measures (6MWD, FVC, DLCO, Dyspnea score).
Interventions
DIAGNOSTIC_TESTMRI
Patients will be imaged using MRI
Hyperpolarized Xe129 will be used to image the lungs of a subset of participants.
DIAGNOSTIC_TESTHRCT
High Resolution Computer Tomography
Sponsors
University of Kansas Medical Center
Scleroderma Foundation
Study design
Observational model
COHORT
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
Arm 1 (UTE MRI in patients with Scleroderma) Inclusion Criteria: * Age ≥ 18 years of age * Subject has clinical diagnosis of scleroderma. * Chest CT scan within 1 month prior to screening or Chest CT scan will be completed within 1 month post study enrollment. * Ability to adhere to the study visit schedule, adhere, and comply with all protocol requirements. * Ability to understand and provide written informed consent.
Exclusion criteria
* Subject unable to undergo MRI based on MRI safety screening * Pregnant or breastfeeding female subjects * Prisoners or incarcerated individuals * Any in-patient hospitalization (defined as greater than 23 hours) within 30 days of study enrollment * Any major surgical procedure within 90 days prior to study enrollment or planned surgical procedure during the study period. * Concomitant medical disorder, condition, or history, that in the opinion of the Investigator would impair the subject's ability to participate in or complete the requirements of the study * Other medical or psychiatric condition which, in the opinion of the Investigator, would place the subject at increased risk or would preclude obtaining voluntary consent or would confound the objectives of the study Arm 2 (Hyperpolarized 129Xe MRI in Patients with Scleroderma ILD) Inclusion Criteria: * Age ≥ 18 years of age * Subject clinically diagnosed with SSc-ILD. * Subject initiating background SSc-ILD therapy within ±30 days of visit 1. (i.e. patient cannot have begun therapy for SSc-ILD more than 30 days prior to visit 1, or must be clinically scheduled to initiate therapy within 30 days after visit 1). * FVC % Predicted ≥45% pre-bronchodilator within 30 days prior to screening or at baseline. * DLCO % Predicted ≥30% within 30 days prior to screening or at baseline. * Oxygen saturation \>87% on room air or with supplemental oxygen * Ability to adhere to the study visit schedule, adhere, and comply with all protocol requirements. * Ability to understand and provide written informed consent.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Presence of ILD on CT and MRI | Baseline | An experienced radiologist will review MRI and CT images to assess whether ILD is present. |
| Change in RBC/Barrier Ratio | 6 months | The change in hyperpolarized 129Xe RBC/Barrier ratio from baseline to follow-up imaging |
Countries
United States
Outcome results
None listed