Working… Menu

Hyperpolarized 129Xe MRI of Survivors of COVID-19

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT04659707
Recruitment Status : Recruiting
First Posted : December 9, 2020
Last Update Posted : February 24, 2021
Information provided by (Responsible Party):
Peter J. Niedbalski, PhD, University of Kansas Medical Center

Brief Summary:
The purpose of this study is to evaluate pulmonary function of patients recovering from mild, moderate, and severe COVID-19 disease using hyperpolarized 129Xe MRI.

Condition or disease Intervention/treatment Phase
Covid19 Drug: Hyperpolarized Xe129 Phase 1

Detailed Description:

COVID-19, the disease at the heart of the current global pandemic, is characterized by fevers, cough, sore throat, malaise, and myalgias, with 98% of patients experiencing some pulmonary involvement. In those infected with the causative virus, SARS-CoV-2, the severity of symptoms, as well as their duration, is widely variable. There is strong evidence from computed tomography (CT) images of patients with severe COVID-19 that pulmonary abnormalities and lung damage caused by infection may have long-term consequences for survivors. Furthermore, many patients with mild or moderate experience symptoms such as fatigue and dyspnea long (>60 days) after initial symptom onset, but there are currently no clinical predictors of which patients are at greatest risk for long-term health effects. As such, sensitive and specific predictors or biomarkers that can evaluate quality-of-life, risk of infection exacerbation, and long-term outcomes are critically needed.

Pulmonary imaging using hyperpolarized (HP) 129Xe magnetic resonance imaging (MRI) provides a means to detect abnormalities in the pulmonary small airways, vasculature, and parenchyma by quantifying pulmonary ventilation, gas diffusion, and regional gas exchange. HP 129Xe MRI is fast (<16s), non-invasive, and radiation free, making it a safe and effective method for characterizing lung function, even in individuals with lung disease. In this pilot study, we will use HP 129Xe to evaluate pulmonary structure and function in COVID-19 patients using the following specific aims:

Aim 1. Detect regional pulmonary function abnormalities in recovering COVID-19 patients using hyperpolarized 129Xe MRI. The hypothesis is that ventilation and gas exchange defects will be present in recovering COVID-19 patients, and further that the extent of impairment will correlate with disease severity.

Aim 2. Determine risk factors for long term outcomes using hyperpolarized 129Xe MRI and clinical biomarkers. The hypothesis is that HP 129Xe MRI biomarkers will predict long-term lung function impairment brought on by COVID-19.

These aims will be tested by performing HP 129Xe MRI in patients recovering from mild, moderate, or severe COVID-19. By coming to a fuller understanding of the long-term impairment of pulmonary function, future treatment can be optimized to minimize severe disease and health care utilization.

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 20 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Diagnostic
Official Title: Evaluating Lung Structure and Function in Survivors of COVID-19 Using Hyperpolarized 129Xe MRI
Actual Study Start Date : February 22, 2021
Estimated Primary Completion Date : December 31, 2021
Estimated Study Completion Date : December 31, 2021

Arm Intervention/treatment
Experimental: COVID-19 Survivors
Subjects recovering from COVID-19 disease will be imaged using hyperpolarized 129Xe MRI.
Drug: Hyperpolarized Xe129
Subjects will inhale up to 4 doses of hyperpolarized Xenon gas in order to image pulmonary function.
Other Names:
  • HP Xenon
  • 129Xe

Primary Outcome Measures :
  1. Ventilation Defect Percentage [ Time Frame: Baseline ]
    VDP at Baseline

  2. Ventilation Defect Percentage [ Time Frame: 6-months ]
    VDP at 6 months

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Layout table for eligibility information
Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Oxygenation saturation of ≥88% at rest by study staff within 48 hours prior to study entry.
  • The participant has a previous diagnosis of COVID-19 confirmed by COVID-19 PCR or antibody testing and is being seen for outpatient follow-up.
  • Subject is at least 10 days post-symptom-onset and do not have a fever (<99.5°).
  • Ability to read and understand English or Spanish

Exclusion Criteria:

  • Subject is less than 18 years old
  • MRI is contraindicated based on responses to MRI screening questionnaire
  • Subject is pregnant or lactating
  • Subject does not fit into 129Xe vest coil used for MRI
  • Subject cannot hold his/her breath for 15-16 seconds
  • Subject deemed unlikely to be able to comply with instructions during imaging
  • Oxygen saturation <88% on room air or with supplemental oxygen
  • Cognitive deficits that preclude ability to provide consent
  • Institutionalization

Information from the National Library of Medicine

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 identifier (NCT number): NCT04659707

Layout table for location contacts
Contact: Peter J Niedbalski, PhD 9135882271

Layout table for location information
United States, Kansas
University of Kansas Medical Center Recruiting
Kansas City, Kansas, United States, 66160
Contact: Peter J Niedbalski, PhD    913-588-2271   
Sponsors and Collaborators
University of Kansas Medical Center
Layout table for additonal information
Responsible Party: Peter J. Niedbalski, PhD, Research Assistant Professor, University of Kansas Medical Center Identifier: NCT04659707    
Other Study ID Numbers: 00146646
First Posted: December 9, 2020    Key Record Dates
Last Update Posted: February 24, 2021
Last Verified: February 2021
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: Deidentified imaging data will be shared with researchers upon reasonable request.

Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No