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Gadoquatrane

Phase 3

Contrast Enhancement in Magnetic Resonance Imaging | Small molecule | Other |Bayer AG|Trials Updated: Oct 8, 2026

Gadoquatrane target and mechanism

ModalitySmall molecule

Also known as Gadoquatrane (BAY1747846)

Success Probability

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Market & Valuation

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Trial Design

RandomizedDouble-BlindCONTROLLED
Total Trials4
Total Enrollment893

FDA Designations

No designations recorded

Gadoquatrane clinical trials

Gadoquatrane · 4 trials · 4 indications

Phase 3 3Phase 2 1
NCT05915026A Study to Learn How Gadoquatrane Moves Into, Through, and Out of the Body and How Safe it is in Children (From Birth to <18 Years), Who Will Undergo a Contrast Enhanced MRI (Quanti Pediatric)Contrast Enhancement in Magnetic Resonance Imaging
COMPLETED105 Analytics
NCT05915702A 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 ProblemsContrast Enhancement in Magnetic Resonance Imaging
COMPLETED321 Analytics
NCT05915728A Study to Compare How Well Gadoquatrane Works and Its Safety With an Already Available Contrast Agent for MRI in People With Any Known or Suspected Problems of the Body (Except Brain or Spinal Cord-related Problems)Contrast Enhancement in Magnetic Resonance Imaging
COMPLETED410 Analytics
PHASE3COMPLETED
A Study to Learn How Gadoquatrane Moves Into, Through, and Out of the Body and How Safe it is in Children (From Birth to <18 Years), Who Will Undergo a Contrast Enhanced MRI (Quanti Pediatric)
Contrast Enhancement in Magnetic Resonance ImagingUnlock trial analytics
PHASE3COMPLETED
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
Contrast Enhancement in Magnetic Resonance ImagingUnlock trial analytics
PHASE3COMPLETED
A Study to Compare How Well Gadoquatrane Works and Its Safety With an Already Available Contrast Agent for MRI in People With Any Known or Suspected Problems of the Body (Except Brain or Spinal Cord-related Problems)
Contrast Enhancement in Magnetic Resonance ImagingUnlock trial analytics

Study Endpoints

Primary Endpoints

Area Under the Curve (AUC) of Gadoquatrane After Single Administration
Up to 8 hours post injection

Median values (5th and 95th percentile)

Plasma Clearance Normalized to Body Weight (CL/BW) of Gadoquatrane After Single Administration
Up to 8 hours post injection

Median values (5th and 95th percentile)

Apparent Volume of Distribution at Steady State Normalized to Body Weight (Vss/BW) of Gadoquatrane After Single Administration
Up to 8 hours post injection

Median values (5th and 95th percentile)

Simulation of Plasma Concentration at 10, 20 and 30 Minutes Post-injection (C10, C20 and C30)
At 10, 20 and 30 minutes post injection

Median values (5th and 95th percentile)

Visualization Parameter Contrast Enhancement Assessed by Separate Blinded Evaluation of Unenhanced and Combined Pre- and Post-gadoquatrane MRI, by a BICR (Mean Score)
1 day procedure

contrast enhancement was assessed by blinded independent central review (BICR) readers using separate blinded evaluations of unenhanced MRI image sets and combined pre- and post-contrast gadoquatrane MRI image sets. Contrast enhancement was rated on a 4-point scale (1 = not enhanced; 2 = weakly enhanced; 3 = clearly enhanced; 4 = clearly and brightly enhanced), and mean scores with standard deviation are reported.

Visualization Parameter Delineation Assessed by Separate Blinded Evaluation of Unenhanced and Combined Pre- and Post-gadoquatrane MRI, by a BICR (Mean Score)
1 day procedure

Delineation was assessed by blinded independent central review (BICR) readers using separate blinded evaluations of unenhanced MRI image sets and combined pre- and post-contrast gadoquatrane MRI image sets. Delineation was rated on a 4-point scale (1 = no or unclear delineation; 2 = moderate delineation, with some aspects visible; 3 = good delineation, almost clear but not complete; 4 = excellent delineation, clear and complete), and mean scores with standard deviation are reported.

Visualization Parameter Morphology Assessed by Separate Blinded Evaluation of Unenhanced and Combined Pre- and Post-gadoquatrane MRI, by a BICR (Mean Score)
1 day procedure

Morphology was assessed by blinded independent central review (BICR) readers using separate blinded evaluations of unenhanced MRI image sets and combined pre- and post-contrast gadoquatrane MRI image sets. Morphology was rated on a 3-point scale (1 = poor: no or poorly evaluable; 2 = moderate: partially evaluable; 3 = good: sufficiently evaluable), and mean scores with standard deviation are reported.

Visualization Parameter Contrast Enhancement Assessed by Separate Blinded Evaluation of Unenhanced and Combined Pre- and Post-gadoquatrane MRI, by a BICR
1 day procedure

Contrast Enhancement was 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

Visualization Parameter Delineation Assessed by Separate Blinded Evaluation of Unenhanced and Combined Pre- and Post-gadoquatrane MRI, by a BICR
1 day procedure

Delineation was 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

Visualization Parameter Morphology Assessed by Separate Blinded Evaluation of Unenhanced and Combined Pre- and Post-gadoquatrane MRI, by a BICR
1 day procedure

Morphology was 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

Overall Diagnostic Preference
At 5 minute post each injection

Overall diagnostic preference using a matched pairs approach was evaluated by 3 blinded readers using an ordinal 5-point scale (greatly prefer gadoquatrane, prefer gadoquatrane, no preference, prefer gadobutrol, greatly prefer gadobutrol). Percentage of participants and the respective Wald confidence intervals (CI) for image preference were reported for each of the 3 readers based on the 3-point preference scale (1=greatly prefer/prefer gadoquatrane, 0=no preference, -1=greatly prefer/prefer gadobutrol). If 2 or 3 readers reach the same conclusion on the recommended action (e.g. no dose adjustment needed), then this will be the recommended action taken.

Secondary Endpoints

Number of Participants With Treatment Emergent Adverse Events, Including Serious Adverse Events
Within 24 (± 4) hours post injection
Number of Participants With Treatment Emergent Adverse Events Per Intensity
Within 24 (± 4) hours post injection
Number of Participants With Post-treatment Adverse Events, Including Serious Adverse Events
Between 24 (± 4) hours and 7 (± 1) days after the day of study intervention
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Study Design & Arms

AllocationNA
MaskingNONE
ModelSINGLE_GROUP
PurposeBASIC_SCIENCE

Treatment Arms

ArmTypeDescription
GadoquatraneEXPERIMENTALParticipants will receive one intravenous injection of gadoquatrane during MRI.
Gadoquatrane - Approved Macrocyclic GBCAEXPERIMENTALParticipants 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.
Approved Macrocyclic GBCA - GadoquatraneEXPERIMENTALParticipants 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.
Gadobutrol + GadoquatraneEXPERIMENTALParticipants will receive one intravenous (IV) injection of gadobutrol 0.1 millimole(s) gadolinium/kilogram body weight (mmol Gd/kg bw) and one IV injection of Gadoquatrane (BAY1747846).

Interventions

NameTypeDescription
Gadoquatrane (BAY1747846)DRUG0.04 mmol Gd/kg body weight, solution for intravenous injection, single dose
GadobutrolDRUGApproved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose
Gadoterate meglumineDRUGApproved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose
GadoteridolDRUGApproved standard of care macrocyclic GBCA, 0.1 mmol Gd/kg body weight, solution for intravenous injection, single dose
Gadobutrol (Gadovist/Gadavist)DRUGSolution for IV injection, single dose
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Eligibility Criteria

Age Range0 Years to 17 Years
SexALL
Healthy VolunteersNo
Study Sites34

Inclusion Criteria: * Participants from birth to \<18 years of age at the time of signing the informed consent form. * Participants who have a clinical indication to undergo a CE-MRI for any clinical condition in any body region and who can undergo study procedures as per Investigator judgement. * ...

Countries:United StatesArgentinaBulgariaCanadaChinaCzechiaGermanyJapanPolandSwedenFranceHungaryItalySouth KoreaTurkey (Türkiye)United Kingdom
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Recent Changes (Last 90 Days)

MEDIUMSep 20, 2026NCT05915728TRIAL_REMOVED: changed
MEDIUMSep 20, 2026NCT05915728TRIAL_REMOVED: changed
MEDIUMSep 20, 2026NCT05915728TRIAL_REMOVED: changed
MEDIUMAug 17, 2026NCT05915026TRIAL_REMOVED: changed
MEDIUMAug 17, 2026NCT05915026TRIAL_REMOVED: changed
MEDIUMAug 17, 2026NCT05915026TRIAL_REMOVED: changed

Frequently asked questions about Gadoquatrane

What is Gadoquatrane used for?

Gadoquatrane is an investigational gadolinium-based contrast agent being developed for contrast enhancement in magnetic resonance imaging (MRI). It is intended to help visualize known or suspected pathology in the central nervous system, such as brain or spinal cord conditions, as well as non-central nervous system pathology elsewhere in the body.

Who is developing Gadoquatrane?

Gadoquatrane is being developed by Bayer AG, which trades on the OTC market under the ticker BAYRY. Bayer is the sponsor of the clinical program evaluating the agent as a contrast medium for magnetic resonance imaging.

What phase is Gadoquatrane in?

Gadoquatrane is in Phase 2 development according to the drug's overall profile, though the clinical program includes completed Phase 3 trials. It is an investigational agent and has not been approved by the FDA. The completed studies enrolled a total of 836 participants across adult and pediatric populations.

What clinical trials is Gadoquatrane in?

Gadoquatrane has been studied in completed trials including NCT05915728, which evaluated contrast enhancement for non-central nervous system pathology in 410 adults, NCT05915702, which assessed brain or spinal cord-related pathology in 321 adults, NCT05915026, a pediatric study in 105 children from birth to under 18 years, and NCT04307186, a Phase 2 dose-finding study in 57 adults with central nervous system pathology.

Is Gadoquatrane the same as BAY1747846?

Yes, Gadoquatrane is also known as BAY1747846. BAY1747846 is the internal Bayer development code for the same investigational gadolinium-based contrast agent. Both names refer to the identical molecule being studied for contrast enhancement in magnetic resonance imaging.