Researchers are looking for a better way to help people with known or suspected brain or spinal cord-related problems scheduled for a "contrast-enhanced" Magnetic Resonance Imaging (MRI). MRI is used by doctors to create detailed images of the inside of the body to identify health problems. Sometimes doctors need to inject a contrast agent into a patient's vein to perform a so called "contrast-enhanced" MRI (CE-MRI). Such CE-MRI examinations may support doctors to identify certain health problems or improve the evaluation. The contrast agents commonly used in MRI are gadolinium-based contrast agents (GBCAs). GBCAs contain a "rare earth" element called gadolinium (Gd). Gadoquatrane is a new contrast agent under development with a lower amount of Gd needed per CE-MRI. The main purpose of this study is to learn whether CE-MRI scans with gadoquatrane work better than MRI scans without the use of a contrast agent (GBCA). The researchers will compare the ability to detect brain and spinal cord-related problems in gadoquatrane-MRI scans to plain-MRI scans without the use of a contrast agent. The participants will undergo 2 MRI scans, one with gadoquatrane and one with currently used GBCA. Both contrast agents will be injected into the vein. Each participant will be in the study for between 6 and 42 days with up to 7 doctor visits. At the start or during the study, the doctors and their study team will: * take blood and urine samples * do physical examinations * check blood pressure and heart rate * review the MRI scans obtained in the study and decide on the diagnosis * ask the participants questions about how they are feeling and what adverse events they are having. An adverse event is any medical problem that a participant has during a study. Doctors keep track of all adverse events, irrespective if they think it is related or not to the study treatments.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
DIAGNOSTIC
Masking
QUADRUPLE
Enrollment
303
0.04 mmol Gd/kg body weight, solution for intravenous injection, single dose
Approved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose
Approved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose
Approved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose
Halo Diagnostics - Indian Wells
Indian Wells, California, United States
University of California Irvine Med. Center / Diagnostic Radiology, Neuroradiology
Orange, California, United States
Biogenix Molecular, LLC
Miami, Florida, United States
Northwestern Memorial Hospital - Radiology
Chicago, Illinois, United States
QUEST Research Institute | Farmington Hills, MI
Farmington Hills, Michigan, United States
Visualization parameter contrast Enhancement assessed by separate blinded evaluation of unenhanced and combined pre- and post-gadoquatrane MRI, by a BICR
Contrast Enhancement will be assessed on a 4-point scale (1/No: not enhanced, 2/Moderate: weakly enhanced, 3/Good: clearly enhanced, 4/Excellent: clearly and brightly enhanced). BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging
Time frame: 1 day procedure
Visualization parameter delineation assessed by separate blinded evaluation of unenhanced and combined pre- and post-gadoquatrane MRI, by a BICR
Delineation will be assessed on a 4-point scale (1/No: no or unclear delineation, 2/Moderate: some aspects of delineation, 3/Good: almost clear but not complete, 4/Excellent: clear and complete delineation). BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging
Time frame: 1 day procedure
Visualization parameter morphology assessed by separate blinded evaluation of unenhanced and combined pre- and post-gadoquatrane MRI, by a BICR
Morphology will be assessed on a 3-point scale (1/Poor: no or poorly evaluable, 2/Moderate: partially evaluable, 3/Good: sufficiently evaluable). BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging
Time frame: 1 day procedure
Visualization parameter contrast assessed by separate blinded evaluation of combined pre- and post-gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs, by a BICR
Contrast Enhancement will be assessed on a 4-point scale (1/No: not enhanced, 2/Moderate: weakly enhanced, 3/Good: clearly enhanced, 4/Excellent: clearly and brightly enhanced). BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
Visualization parameter delineation assessed by separate blinded evaluation of combined pre- and post-gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs, by a BICR
Delineation will be assessed on a 4-point scale (1/No: no or unclear delineation, 2/Moderate: some aspects of delineation, 3/Good: almost clear but not complete, 4/Excellent: clear and complete delineation). BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
Visualization parameter morphology assessed by separate blinded evaluation of combined pre- and post-gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs, by a BICR
Morphology will be assessed on a 3-point scale (1/Poor: no or poorly evaluable, 2/Moderate: partially evaluable, 3/Good: sufficiently evaluable). BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
Sensitivity for the detection of lesions of combined pre- and post-gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs, by a BICR
BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
Specificity for the detection of lesions of combined pre- and post-gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs, by a BICR
BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
The overall diagnostic clinical value of combined pre- and post-gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs
The overall diagnostic clinical value is composed of 2 elements and based on: i.the evaluation of diagnostic descriptive imaging features adapted from radiologic reporting standards (detection/exclusion of enhancing pathology; location, extent, and pattern of enhancement) on a 5-point scale (1- no diagnostic clinical value from contrast enhancement, 2- poor diagnostic clinical value from contrast enhancement, 3- moderate diagnostic clinical value from contrast enhancement, 4- good diagnostic clinical value from contrast enhancement, 5- excellent diagnostic clinical value from contrast enhancement), by the BICR and the Investigator; ii. the evaluation of patient management based on the diagnostic reporting recommendations (i.e., likely diagnosis), by the Investigator. BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging
Time frame: 1 day procedure
Sensitivity for the detection of malignant lesions of combined pre- and post-gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs assessed by BICR and the investigator
BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
Specificity for the detection of malignant lesions of combined pre- and post-gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs assessed by BICR and the investigator
BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
Diagnoses from combined pre- and post- gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs by the Investigator
BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
Confidence in diagnosis combined pre- and post- gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs by BICR and by Investigator on 4PS
The degree of confidence will be rated on a 4-point scale: 1 = Not confident, 2 = Somewhat confident, 3 = Confident, 4 = Very confident. BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
Number of lesions seen on unenhanced MRI image set and combined pre- and post-gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs, by a BICR
BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
Number of enhancing lesions seen on combined pre- and post- gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs, by a BICR
BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents
Time frame: 1 day procedure
Number of participants with treatment emergent adverse events, including number of serious adverse events, after administration of gadoquatrane compared to macrocyclic GBCAs reported by the investigator
GBCAs = gadolinium-based contrast agents
Time frame: Within 24 ± 4 hours after administration of gadoquatrane or any approved macrocyclic GBCAs
Number of participants with treatment emergent adverse events, including number of serious adverse events, per intensity after administration of gadoquatrane compared to macrocyclic GBCAs reported by the investigator
GBCAs = gadolinium-based contrast agents
Time frame: Within 24 ± 4 hours after administration of gadoquatrane or any approved macrocyclic GBCAs
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