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Quantifying Oxygen Utilization of Tumors Using Oxygen-Enhanced Molecular MRI

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. Read our disclaimer for details.
 
ClinicalTrials.gov Identifier: NCT04460495
Recruitment Status : Terminated (insufficient accrual)
First Posted : July 7, 2020
Last Update Posted : May 10, 2022
Sponsor:
Information provided by (Responsible Party):
Jonsson Comprehensive Cancer Center

Study Description
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Brief Summary:
This trial looks to study the safety and feasibility of using oxygen-enhanced molecular MRI to understand how cancer cells use oxygen differently than normal cells. Cancer cells tend to utilize (or not utilize) oxygen differently than normal cells. By using the oxygen-enhanced molecular MRI, researchers will be able to create spatial "maps" depicting areas of abnormal oxygen utilization unique to cancer. This type of information may be useful for diagnosing new cancers, understanding various "subtypes" of cancer that might utilize oxygen differently, or this information may be useful for evaluating new drugs that impact cancer metabolism.

Condition or disease Intervention/treatment Phase
Malignant Brain Neoplasm Procedure: Arterial Spin Labeling Magnetic Resonance Imaging Procedure: pH-Weighted amine CEST Procedure: Oxygen-weighted SAGE-EPI Not Applicable

Detailed Description:

PRIMARY OBJECTIVES:

I. Determine the safety, feasibility, and sensitivity of oxygen-enhanced molecular magnetic resonance imaging (MRI) in healthy volunteers.

II. Measure oxygen-enhanced molecular MRI characteristics in human brain tumors.

OUTLINE:

Participants undergo arterial spin labeling (ASL) MRI scan and amine chemical exchange saturation transfer spin-and-gradient echo echo-planar imaging using amine proton CEST echo spin-and-gradient echo (SAGE) EPI (CEST-SAGE-EPI) while breathing normal room air (21% oxygen). Patients then undergo another ASL MRI and CEST-SAGE-EPI while breathing medical grade air (100% oxygen). Total ASL MRI and CEST-SAGE-EPI imaging scan time is 60 minutes.

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 8 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Intervention Model Description: oxygen-enhanced molecular MRI in healthy volunteers.
Masking: None (Open Label)
Primary Purpose: Other
Official Title: Quantifying Tumor Respiration Using Oxygen-Enhanced Molecular MRI
Actual Study Start Date : July 7, 2020
Actual Primary Completion Date : September 16, 2021
Actual Study Completion Date : September 16, 2021

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Oxygen Therapy

Arms and Interventions
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Arm Intervention/treatment
Experimental: Feasibility (ASL,pH-Weighted amine CEST, O2-Weighted SAGE-EPI)
Participants undergo ASL perfusion, pH-weighted amine CEST, and oxygen-weighted SAGE-EPI , while breathing normal room air (21% oxygen). Patients then undergo another ASL perfusion, pH-weighted amine CEST, and oxygen-weighted SAGE-EPI while breathing medical grade air (100% oxygen). Total ASL perfusion, pH-weighted amine CEST, and oxygen-weighted SAGE-EPI imaging scan time is 60 minutes.
 Procedure: Arterial Spin Labeling Magnetic Resonance Imaging
Undergo ASL scan
Other Names:
  • ARTERIAL SPIN LABELING FUNCTIONAL MRI
  • Arterial Spin Labeling MRI
  • ASL
  • ASL fMRI

Procedure: pH-Weighted amine CEST
Undergo pH Weighted amine CEST
Other Names:
  • Amine CEST
  • CEST-EPI

Procedure: Oxygen-weighted SAGE-EPI
Undergo Oxygen-weighted SAGE-EPI
Other Names:
  • SAGE-EPI
  • Hypoxia MRI


Outcome Measures
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Primary Outcome Measures :
  1. Change in pH-weighted amine CEST MRI to measure tumor acidity (MTRasym at 3ppm) before/after oxygen enrichment [ Time Frame: Baseline and two hours after Oxygen enrichment ]
    Will be measured by voxel-wise t-tests via analysis of functional NeuroImages (AFNI) software between the average R2' and MTRasym during normal room air and medical grade air.

  2. Change in oxygen-weighted SAGE-EPI to measure oxygen extraction (R2') before and after oxygen enrichment [ Time Frame: Baseline and two hours after Oxygen enrichment ]
    We will perform voxel-wise t-tests via AFNI software between the average R2' and MTRasym during normal room air and medical grade air.

  3. Tumor blood flow as measured by cerebral blood flow (CBF) from arterial spin labeling (ASL). [ Time Frame: Baseline and two hours after Oxygen enrichment ]
    Change in ASL perfusion estimates of relative cerebral blood flow (CBF) before and after oxygen enrichment


Eligibility Criteria
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Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

  • Healthy volunteers will include persons who at the time of scans do not present with known neurological conditions that might impact tissue imaging results
  • Patient participants should have suspected or pathology-confirmed diagnosis of a brain tumor (any histological subtype including brain metastases)
  • All participants must be able to obtain an MRI scan and must be able to safely breathe high concentrations of oxygen

Exclusion Criteria:

  • Participants with contraindications to MRI including metal implants
  • Participants who are deemed not able to or not safe to breath high concentrations of oxygen
Contacts and Locations
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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 ClinicalTrials.gov identifier (NCT number): NCT04460495


Locations
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United States, California
UCLA / Jonsson Comprehensive Cancer Center
Los Angeles, California, United States, 90095
Sponsors and Collaborators
Jonsson Comprehensive Cancer Center
Investigators
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Principal Investigator: Benjamin M Ellingson UCLA / Jonsson Comprehensive Cancer Center
More Information
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Responsible Party: Jonsson Comprehensive Cancer Center
ClinicalTrials.gov Identifier: NCT04460495    
Other Study ID Numbers: 20-000449
NCI-2020-03446 ( Registry Identifier: CTRP (Clinical Trial Reporting Program) )
First Posted: July 7, 2020    Key Record Dates
Last Update Posted: May 10, 2022
Last Verified: May 2022

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: Yes
Additional relevant MeSH terms:
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Brain Neoplasms
Central Nervous System Neoplasms
Nervous System Neoplasms
Neoplasms by Site
 Neoplasms
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases