Cardiovascular Magnetic Resonance Prognosticators in Pediatric Oncology Patients With Sepsis

Study Overview
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Brief Summary
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The overall purpose of this protocol is to identify subacute sepsis-associated cardiac disease in pediatric patients with cancer by CMR and evaluate the CMR findings during their follow-up. This will help inform heart failure management decision making. Evidence of dysfunction or elevated T2 values may inform adjustment of afterload reduction and beta blocker administration, and elevated ECV findings will suggest the need for increased surveillance for diastolic dysfunction. Primary Objectives: (Feasibility Phase) To determine the feasibility of cardiac MRI without anesthesia in the immediate post-sepsis period in children with cancer. CMR scanning will be completed within 10 days of presentation - this will allow us to ensure that possible hemodynamic or respiratory instability and renal dysfunction has resolved prior to transport to the MRI scanner during the most acute phase of illness. (Completion Phase) To estimate the frequency of subacute sepsis-associated cardiac disease, including myocardial inflammation and dysfunction, in the post-acute phase (within 10 days of presentation) of severe sepsis in children with cancer

Detailed Description
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The primary purpose of this study is to evaluate the feasibility of obtaining cardiac MRI in pediatric patients with cancer post-septic shock which will be completed in an initial 5 patients to establish feasibility of successfully completing first study CMR within ten days of sepsis presentation without sedation. This study will use a two-stage design. The initial stage (the feasibility phase) will evaluate the feasibility of data collection, and the second stage (the completion phase) will provide data for analysis of cardiovascular abnormalities and recovery in sepsis. Feasibility Phase The feasibility phase of the study will comprise the first 5 study participants. The aim of this stage is to establish feasibility of successfully completing the initial study CMR within ten days of sepsis presentation without sedation. At completion of the feasibility phase, (first 5 participants) feasibility of data collection will be evaluated using the following stopping rule: If at least 4 of attempted 5 patient scans provide adequate available data for CMR analysis and can be completed without sedation or delay beyond the 10-day window (due to coordination or deferral due to hemodynamic instability), the study may continue to the completion phase. If fewer than 4 participants are able to complete the cardiac MRI, the study will be paused until any factors that can improve the feasibility may be identified. Data obtained during the feasibility phase will be included in analysis of CMR abnormalities. Completion Phase The Completion Phase will comprise approximately 20 participants in order to complete the pilot study to evaluate for abnormalities on CMR. We estimate the feasibility phase will require up to 6 months to accrue and perform first CMR for the initial 5 patients and the completion phase will require an additional up to 18 months to accrue 15 additional patients who can complete CMR evaluation

Official Title
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Cardiovascular Magnetic Resonance Prognosticators In Pediatric Oncology Patients With Sepsis: A Priority Pilot Study

Conditions
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Acute Respiratory Distress Syndrome, Sepsis, Cardiovascular Shock

Intervention / Treatment
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* Diagnostic Test: Cardiac MRI


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: Between 9 and 25 years of age at time of study enrollment Currently receiving care for cancer at St. Jude Diagnosed with severe sepsis according to consensus criteria Exclusion Criteria: History of allogeneic hematopoietic cell transplantation or CAR-T cell therapy Participant has been diagnosed with clinically significant left ventricular dysfunction (EF < 55%) prior to the onset of sepsis Participant has any condition that would, in the opinion of the investigator, place the subject at an unacceptable risk of injury or render the subject unable to meet the requirements of the protocol. Participant is pregnant. Estimated glomerular filtration rate < 45 ml/minute/1.73m2 Does not meet MRI safety screening criteria.

Ages Eligible for Study
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Minimum Age: 9 Years
Maximum Age: 25 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Diagnostic
Intervention Model: Single Group Assignment
Masking: None (Open Label)


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Cardiac MRI after sepsis<br>Participants who meet the eligibility criteria of severe sepsis. | Diagnostic Test: Cardiac MRI<br>* Cardiac Magnetic Resonance provides more sensitive measure of ventricular volume and ejection fraction as well as novel markers of tissue characterization and edema assessment.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Feasibility of cardiac MRI in pediatric oncology patients with sepsis | The proportion of enrolled participants who have evaluable cMRI data within 10 days after onset of sepsis | within 10 days after onset of sepsis | 
| Frequency of subacute sepsis-associated cardiac disease | To estimate the frequency of subacute sepsis-associated cardiac disease, including myocardial inflammation and dysfunction, in the post-acute phase (within 10 days of presentation) of severe sepsis in children with cancer | Within 10 days of presentation |