The classic website will no longer be available as of June 25, 2024. Please use the modernized ClinicalTrials.gov.
Working…
ClinicalTrials.gov
ClinicalTrials.gov Menu

A Study to Compare How Well Gadoquatrane Works and Its Safety With an Already Available Contrast Agent for MRI in People With Known or Suspected Brain or Spinal Cord-related Problems (Quanti CNS)

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.
 
ClinicalTrials.gov Identifier: NCT05915702
Recruitment Status : Recruiting
First Posted : June 23, 2023
Last Update Posted : May 8, 2024
Sponsor:
Information provided by (Responsible Party):
Bayer

Brief Summary:

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.


Condition or disease Intervention/treatment Phase
Contrast Enhancement in Magnetic Resonance Imaging Central Nervous System Pathology Drug: Gadoquatrane (BAY1747846) Drug: Gadobutrol Drug: Gadoterate meglumine Drug: Gadoteridol Phase 3

Layout table for study information
Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 295 participants
Allocation: Randomized
Intervention Model: Crossover Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Masking Description: The site staff in charge of the preparation and administration of study intervention will be unblinded and will not be involved in any evaluation of safety and efficacy. The site staff in charge of conducting all other study procedures as per the schedule of activities (SoA) will remain blinded to the study intervention administered.
Primary Purpose: Diagnostic
Official Title: A Multicenter, Randomized, Prospective Double-blind, Cross-over Phase 3 Study to Evaluate the Efficacy and Safety of 0.04 mmol Gd/kg Body Weight of Gadoquatrane for MRI in Adults With Known or Suspected Pathology of the Central Nervous System (CNS), Compared to 0.1 mmol Gd/kg Approved Macrocyclic Gadolinium-based Contrast Agents (GBCAs)
Actual Study Start Date : July 24, 2023
Estimated Primary Completion Date : July 15, 2024
Estimated Study Completion Date : July 16, 2024

Resource links provided by the National Library of Medicine

MedlinePlus related topics: MRI Scans

Arm Intervention/treatment
Experimental: Gadoquatrane - Approved Macrocyclic GBCA
Participants will receive one intravenous injection of gadoquatrane before or during MRI in Period 1, followed by one intravenous injection of any approved macrocyclic GBCA before or during MRI in Period 2.
Drug: Gadoquatrane (BAY1747846)
0.04 mmol Gd/kg body weight, solution for intravenous injection, single dose

Drug: Gadobutrol
Approved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose

Drug: Gadoterate meglumine
Approved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose
Other Name: Gadoteric acid

Drug: Gadoteridol
Approved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose

Experimental: Approved Macrocyclic GBCA - Gadoquatrane
Participants will receive one intravenous injection of any approved macrocyclic GBCA before or during MRI in Period 1, followed by one intravenous injection of gadoquatrane before or during MRI in Period 2.
Drug: Gadoquatrane (BAY1747846)
0.04 mmol Gd/kg body weight, solution for intravenous injection, single dose

Drug: Gadobutrol
Approved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose

Drug: Gadoterate meglumine
Approved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose
Other Name: Gadoteric acid

Drug: Gadoteridol
Approved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose




Primary Outcome Measures :
  1. Visualization parameter contrast Enhancement assessed by separate blinded evaluation of unenhanced and combined pre- and post-gadoquatrane MRI, by a BICR [ Time Frame: 1 day procedure ]
    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

  2. Visualization parameter delineation assessed by separate blinded evaluation of unenhanced and combined pre- and post-gadoquatrane MRI, by a BICR [ Time Frame: 1 day procedure ]
    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

  3. Visualization parameter morphology assessed by separate blinded evaluation of unenhanced and combined pre- and post-gadoquatrane MRI, by a BICR [ Time Frame: 1 day procedure ]
    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


Secondary Outcome Measures :
  1. 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 [ Time Frame: 1 day procedure ]
    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

  2. 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 [ Time Frame: 1 day procedure ]
    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

  3. 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 [ Time Frame: 1 day procedure ]
    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

  4. 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 [ Time Frame: 1 day procedure ]
    BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents

  5. 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 [ Time Frame: 1 day procedure ]
    BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents

  6. The overall diagnostic clinical value of combined pre- and post-gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs [ Time Frame: 1 day procedure ]
    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

  7. 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 [ Time Frame: 1 day procedure ]
    BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents

  8. 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 [ Time Frame: 1 day procedure ]
    BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents

  9. Diagnoses from combined pre- and post- gadoquatrane MRI and combined pre- and post-comparator MRI with macrocyclic GBCAs by the Investigator [ Time Frame: 1 day procedure ]
    BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents

  10. 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 [ Time Frame: 1 day procedure ]
    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

  11. 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 [ Time Frame: 1 day procedure ]
    BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents

  12. 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 [ Time Frame: 1 day procedure ]
    BICR = blinded independent central read / blinded independent central readers; MRI = magnetic resonance imaging; GBCAs = gadolinium-based contrast agents

  13. 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 [ Time Frame: Within 24 ± 4 hours after administration of gadoquatrane or any approved macrocyclic GBCAs ]
    GBCAs = gadolinium-based contrast agents

  14. 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 [ Time Frame: Within 24 ± 4 hours after administration of gadoquatrane or any approved macrocyclic GBCAs ]
    GBCAs = gadolinium-based contrast agents



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
Criteria

Inclusion Criteria:

  • Participant must be >= 18 years of age inclusive, at the time of signing the informed consent form
  • Participants with a clinical indication for a contrast-enhanced MRI (including MRA), with any approved standard of care macrocyclic GBCA with proven efficacy, safety and tolerability in clinical routine CE-MRI/MRA (gadobutrol, gadoterate meglumine/ gadoteric acid or gadoteridol) that is used at the site for the indication, for a known or suspected CNS pathology
  • Participants who can undergo study-related procedures, including 2 contrast-enhanced MRI examinations (one with gadoquatrane and one with a comparator macrocyclic GBCA), as per participant and Investigator's judgement
  • Contraceptive use by female participants should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies. A female participant is eligible to participate if she is not pregnant or breastfeeding, and one of the following conditions applies: Is a woman of nonchildbearing potential (WONCBP) OR Is a woman of childbearing potential (WOCBP) and using an acceptable contraceptive method during the study intervention period (at a minimum of 24 hours after the last dose of study intervention)

Exclusion Criteria:

  • Considered clinically unstable or has a concurrent/concomitant condition that may significantly alter image comparability between the 2 study MRIs or between study parameters (e.g. safety, pharmacokinetics [PK] parameters) or would not allow participation for the full planned study period, in the judgement of the investigator
  • Participants presenting with severe renal insufficiency, defined as an estimated glomerular filtration rate (eGFR) < 30 mL/min/1.73 m^2, derived from a serum or plasma creatinine sample obtained within 48 hours prior to the first contrast agent injection in the study
  • Participants with acute kidney injury (i.e., acute renal failure), regardless of eGFR
  • History of moderate to severe allergic-like reaction to any GBCA
  • Bronchial asthma considered unstable or who have had recent modification to their medical therapy
  • Receipt of any contrast agent < 72 h prior to the study MRIs or planned to receive any contrast agent during the trial until 24 h +/- 4 h after the second study MRI
  • Planned or expected interventional diagnostic or therapeutic procedure (e.g. biopsy or surgery in the region of interest) or change in treatment (e.g. start of chemotherapy or antiangiogenic therapy, significant change in corticosteroids dose) that may significantly alter image comparability between the 2 MRIs or other study parameters (i.e. safety/adverse events (AEs) [e.g. confounding AEs or safety events due to surgery or chemotherapy], PK parameters), from the first study MRI up to 24 h after the second study MRI
  • Has received any investigational product within 30 days, or within 5 times half-life of the investigational product, whatever is shorter, prior to or concurrent with this study
  • Contraindications to the administration of macrocyclic GBCAs (depending on local product label), or history of adverse reaction to gadoquatrane
  • Any contraindication to MRI examinations based on institution policy and investigator's clinical judgement (e.g. some metallic implants or active implants)

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): NCT05915702


Contacts
Layout table for location contacts
Contact: Bayer Clinical Trials Contact (+)1-888-84 22937 clinical-trials-contact@bayer.com

Locations
Show Show 94 study locations
Sponsors and Collaborators
Bayer
Additional Information:
Layout table for additonal information
Responsible Party: Bayer
ClinicalTrials.gov Identifier: NCT05915702    
Other Study ID Numbers: 21181
2022-501884-41-00 ( Registry Identifier: CTIS (EU) )
First Posted: June 23, 2023    Key Record Dates
Last Update Posted: May 8, 2024
Last Verified: May 2024
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No
Plan Description:

Availability of this study's data will later be determined according to Bayer's commitment to the EFPIA/PhRMA "Principles for responsible clinical trial data sharing". This pertains to scope, timepoint and process of data access. As such, Bayer commits to sharing upon request from qualified researchers patient-level clinical trial data, study-level clinical trial data, and protocols from clinical trials in patients for medicines and indications approved in the US and EU as necessary for conducting legitimate research. This applies to data on new medicines and indications that have been approved by the EU and US regulatory agencies on or after January 01, 2014.

Interested researchers can use www.vivli.org to request access to anonymized patient-level data and supporting documents from clinical studies to conduct research. Information on the Bayer criteria for listing studies and other relevant information is provided in the member section of the portal.


Layout table for additional information
Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
Layout table for MeSH terms
Gadolinium 1,4,7,10-tetraazacyclododecane-N,N',N'',N'''-tetraacetate
Chelating Agents
Sequestering Agents
Molecular Mechanisms of Pharmacological Action