Developing Optimal Parameters for Hyperpolarized Noble Gas and Inert Fluorinated Gas MRI of Lung Disorders

Developing Optimal Parameters for Hyperpolarized Noble Gas (3He and 129Xe) and Inert Fluorinated Gas Magnetic Resonance Imaging of Lung Disorders

The goal of this research is to optimize the MRI system to obtain ideal lung images using Hyperpolarized (HP) Noble and Inert Fluorinated Gases as contrast agents. Lung coils tuned to the frequencies of these gases will be used. This study will take place at TBRHSC in the Cardiorespiratory Department and in the Research MRI facility.

Study Overview

• Status: Terminated
• Conditions: Bronchiectasis; Chronic Obstructive Pulmonary Disease; Asthma; Obstructive Sleep Apnea; Emphysema; Pulmonary Fibrosis; Lung Cancer; Cystic Fibrosis; Mesothelioma; Pulmonary Hypertension; Interstitial Lung Disease; Pulmonary Embolism; Lung Resection; Lung Transplant; Seasonal Allergies; Lung Infection; Asbestosis; Cold Virus; Pulmonary Dysplasia
• Intervention / Treatment: Drug: HP 3He; Drug: HP 129Xe; Drug: PFP; Drug: SF6; Device: 129Xe Small and Large Human Lung Coil; Device: 3He Human Lung Coil; Device: PFP and SF6 Human Lung Coil

Detailed Description

MR images of the lung obtained using HP 3He, HP 129Xe, and inert fluorinated gases essentially show the distribution of the inhaled gas inside the lungs. Measurements can be performed on these images to provide additional information that can be related to pulmonary function.

Participation will involve at least two study visits. During the first visit, participants will provide written, informed consent, and undergo eligibility screening. Study drug administration, use of the investigational devices, and MR imaging for this study will be performed at the 3T Research MRI at the Thunder Bay Regional Health Sciences Centre (TBRHSC). Pulmonary Function Tests (PFTs) will be performed at TBRHSC by a Registered Respiratory Therapist (RRT) and an MR Tech will be present for the duration of participant scans.

Participants will be placed in the MRI with the appropriate chest coil wrapped around them like a vest. Several inhalation procedures will be carried out during scanning. Participants safety will be closely monitored throughout the entire study.

• Study Type: Interventional
• Enrollment (Actual): 10
• Phase: Early Phase 1

Contacts and Locations

Study Locations

• Canada
  • Ontario
    • Thunder Bay, Ontario, Canada, P7B 6V4
      • Thunder Bay Regional RI

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (Adult, Older Adult)
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Is either:

  1. A healthy volunteer (i.e.: someone not diagnosed with a lung disorder written below; this may include smokers who have not been diagnosed with a lung disorder) or
  2. Has been diagnosed with one of the following respiratory disorders: lung transplants, lung resection, lung cancer, asthma, cystic fibrosis, chronic obstructive pulmonary disease, emphysema, mesothelioma, asbestosis, pulmonary embolism, interstitial lung disease, pulmonary fibrosis, bronchiectasis, seasonal allergies, pneumonia, cold virus, lung infection, pulmonary hypertension, pulmonary dysplasia, obstructive sleep apnea
• Able to provide informed consent

• Able to hold their breath for imaging:

  1. Healthy volunteers enrolled in this study must be able to hold their breath for 25 seconds
  2. Lung disorder participants must be able to hold their breath for 15 seconds

Exclusion Criteria:

• Have contraindication to MR imaging (i.e. ferrous implants, cardiac pacemakers) - determined by MR screening prior to scans.
• Have a history of claustrophobia.
• Female exclusion only: are or may be pregnant.
• Requires an oxygen mask and cannot use a nasal cannula.
• Blood oxygen saturation is below 92% (measured at rest in a sitting position, and with an O2 nasal cannula if the participant normally uses one).
• Has had an acute respiratory infection in the past 10 days.
• Is a student currently enrolled in a course at Lakehead University where the Principal Investigator (PI) is the instructor.
• Is a student currently enrolled in a degree program at Lakehead University where the PI is their direct thesis supervisor.
• Is currently an employee of the PI at the Thunder Bay Regional Research Institute (TBRRI) and/or Lakehead University.

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Diagnostic
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Healthy Participants; Participants will inhale investigational gases (HP 3He, HP 129Xe, PFP and SF6) according to the procedure for that intervention. All participants can potentially inhale all the gases. Magnetic resonance imaging will be performed during breath-holds or continuous breathing (gas-dependent) with the appropriate investigational human lung coil (3He Human Lung Coil, 129Xe Small and Large Human Lung Coil, or PFP and SF6 Human Lung Coil), using the 3T Research MRI at the Thunder Bay Regional Health Sciences Centre.	Drug: HP 3He; 3He will be hyperpolarized using a custom-built polarizer to enhance its MRI signal. Hyperpolarization does not change the chemical or physical properties of helium gas.; Other Names: Hyperpolarized helium 3; Drug: HP 129Xe; 129Xe will be hyperpolarized using a Xemed polarizer to enhance its MRI signal. Hyperpolarization does not change the chemical or physical properties of xenon gas.; Other Names: Hyperpolarized xenon 129; Drug: PFP; Perfluoropropane (PFP) will be premixed and delivered to the participants with no further processing.; Other Names: Perfluoropropane; Drug: SF6; Sulfur hexafluoride (SF6) will be premixed and delivered to the participant with no further processing.; Other Names: Sulfur hexafluoride; Device: 129Xe Small and Large Human Lung Coil; The investigational 129Xe small and large quadrature lung coils are sensitive to 129Xe resonant frequencies and therefore will be paired with the investigational drug 129Xe. The size of the coil used will depend on the participants' body size.; Device: 3He Human Lung Coil; The investigational 3He quadrature lung coil is sensitive to 3He resonant frequencies and therefore will be paired with the investigational drug 3He.; Device: PFP and SF6 Human Lung Coil; The investigational PFP and SF6 quadrature lung coil is sensitive to inert fluorinated gas resonant frequencies and therefore will be paired with both PFP and SF6.
Experimental: Lung Disorder Participants; Participants will inhale investigational gases (HP 3He, HP 129Xe, PFP and SF6) according to the procedure for that intervention. All participants can potentially inhale all the gases. Magnetic resonance imaging will be performed during breath-holds or continuous breathing (gas-dependent) with the appropriate investigational human lung coil (3He Human Lung Coil, 129Xe Small and Large Human Lung Coil, or PFP and SF6 Human Lung Coil), using the 3T Research MRI at the Thunder Bay Regional Health Sciences Centre.	Drug: HP 3He; 3He will be hyperpolarized using a custom-built polarizer to enhance its MRI signal. Hyperpolarization does not change the chemical or physical properties of helium gas.; Other Names: Hyperpolarized helium 3; Drug: HP 129Xe; 129Xe will be hyperpolarized using a Xemed polarizer to enhance its MRI signal. Hyperpolarization does not change the chemical or physical properties of xenon gas.; Other Names: Hyperpolarized xenon 129; Drug: PFP; Perfluoropropane (PFP) will be premixed and delivered to the participants with no further processing.; Other Names: Perfluoropropane; Drug: SF6; Sulfur hexafluoride (SF6) will be premixed and delivered to the participant with no further processing.; Other Names: Sulfur hexafluoride; Device: 129Xe Small and Large Human Lung Coil; The investigational 129Xe small and large quadrature lung coils are sensitive to 129Xe resonant frequencies and therefore will be paired with the investigational drug 129Xe. The size of the coil used will depend on the participants' body size.; Device: 3He Human Lung Coil; The investigational 3He quadrature lung coil is sensitive to 3He resonant frequencies and therefore will be paired with the investigational drug 3He.; Device: PFP and SF6 Human Lung Coil; The investigational PFP and SF6 quadrature lung coil is sensitive to inert fluorinated gas resonant frequencies and therefore will be paired with both PFP and SF6.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Signal to Noise Ratio	The primary objective of this study is to determine an optimized set of scan parameters that will produce clear, anatomically and clinically relevant images of the lungs for healthy participants and various types of lung disorder participants, and using one or more gas type (3He, 129Xe, PFP, SF6).	2 years

Secondary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Correlation with PFTs	The secondary objective of this study is to correlate the results with PFTs, including spirometry and plethysmography.	2 years

Collaborators and Investigators

• Sponsor: Thunder Bay Regional Health Research Institute
• Collaborators: Lakehead University; St. Joseph's Care Group; Thunder Bay Regional Health Sciences Centre
• Investigators: Principal Investigator: Mitchell S Albert, PhD, Thunder Bay Regional Health Research Institute

Publications and helpful links

General Publications

• Couch MJ, Blasiak B, Tomanek B, Ouriadov AV, Fox MS, Dowhos KM, Albert MS. Hyperpolarized and inert gas MRI: the future. Mol Imaging Biol. 2015 Apr;17(2):149-62. doi: 10.1007/s11307-014-0788-2.
• Kooner HK, McIntosh MJ, Matheson AM, Venegas C, Radadia N, Ho T, Haider EA, Konyer NB, Santyr GE, Albert MS, Ouriadov A, Abdelrazek M, Kirby M, Dhaliwal I, Nicholson JM, Nair P, Svenningsen S, Parraga G. 129Xe MRI ventilation defects in ever-hospitalised and never-hospitalised people with post-acute COVID-19 syndrome. BMJ Open Respir Res. 2022 May;9(1):e001235. doi: 10.1136/bmjresp-2022-001235.
• Matheson AM, McIntosh MJ, Kooner HK, Lee J, Desaigoudar V, Bier E, Driehuys B, Svenningsen S, Santyr GE, Kirby M, Albert MS, Shepelytskyi Y, Grynko V, Ouriadov A, Abdelrazek M, Dhaliwal I, Nicholson JM, Parraga G. Persistent 129Xe MRI Pulmonary and CT Vascular Abnormalities in Symptomatic Individuals with Post-acute COVID-19 Syndrome. Radiology. 2022 Nov;305(2):466-476. doi: 10.1148/radiol.220492. Epub 2022 Jun 28.

Study record dates

Study Major Dates

• Study Start (Actual): November 10, 2020
• Primary Completion (Actual): October 16, 2021
• Study Completion (Actual): October 16, 2021

Study Registration Dates

• First Submitted: April 19, 2016
• First Submitted That Met QC Criteria: April 19, 2016
• First Posted (Estimated): April 22, 2016

Study Record Updates

• Last Update Posted (Actual): October 15, 2024
• Last Update Submitted That Met QC Criteria: October 8, 2024
• Last Verified: October 1, 2024

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Digestive System Diseases; Pathologic Processes; Cardiovascular Diseases; Vascular Diseases; Nervous System Diseases; Respiratory Tract Diseases; Neoplasms by Histologic Type; Neoplasms; Apnea; Respiration Disorders; Sleep Disorders, Intrinsic; Dyssomnias; Sleep Wake Disorders; Neoplasms, Glandular and Epithelial; Disease Attributes; Infant, Newborn, Diseases; Bronchial Diseases; Genetic Diseases, Inborn; Embolism and Thrombosis; Occupational Diseases; Sleep Apnea Syndromes; Pancreatic Diseases; Pneumoconiosis; Lung Injury; Adenoma; Hypertension; Neoplasms, Mesothelial; Chronic Disease; Fibrosis; Sleep Apnea, Obstructive; Bronchiectasis; Lung Diseases; Lung Diseases, Obstructive; Pulmonary Disease, Chronic Obstructive; Embolism; Emphysema; Pulmonary Fibrosis; Cystic Fibrosis; Hypertension, Pulmonary; Lung Diseases, Interstitial; Mesothelioma; Pulmonary Embolism; Asbestosis
• Other Study ID Numbers: RP-312-07112014

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No