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CompletedNCT01660841Updated Oct 1, 2014

Safety and Efficacy of Gadobutrol 1.0 Molar in Japanese Subjects for CNS Imaging

A Phase 3 interventional study of Gadobutrol (Gadovist, BAY86-4875) in Magnetic Resonance Imaging, sponsored by Bayer. Completed at 15 sites in Japan. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2014-10-01.

Sponsored by Bayer · Phase 3, Interventional, and Diagnostic

Phase
Phase 3
Study type
Interventional
Enrollment
223
Allocation
Not applicable
Ages
18 Years and older
Sex
All
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Study summary

Purpose of the study is to look at the safety (what are the side effects) and efficacy (how well does it work) of gadobutrol when used for taking images of the brain and spine. The results of the Magnetic Resonance Imaging (MRI) will be compared to the results of images taken without contrast (gadobutrol).

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Conditions studied

  • Magnetic Resonance Imaging

Keywords

  • Magnetic resonance imaging
  • central nervous system
  • contrast media
  • gadobutrol
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In context

Lead sponsor

Bayer is the lead sponsor of 1,643 studies on the registry; 57 are open to participants now.

Of its 209 completed or terminated interventional studies of FDA-regulated products, 129 (62%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Subjects referred for a contrast-enhanced Magnetic Resonance Imaging (MRI) of the central nervous system based on current clinical symptoms or results of a previous imaging procedure

Exclusion criteria

Exclusion Criteria:

  • Subjects with any contraindication to the MRI examination
  • Subjects with severe renal disease to end stage renal disease
  • Subjects scheduled or are likely to require a biopsy or any interventional therapeutic procedure within 72 (±4) hours after the study MRI
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Study design

Phase
Phase 3
Primary purpose
Diagnostic
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
223 participants (actual)

Study arms

  • Experimental
    Arm 1

    Drug: Gadobutrol (Gadovist, BAY86-4875)

Interventions

  • DrugGadobutrol (Gadovist, BAY86-4875)

    A single bolus injection of gadobutrol 1.0M 0.1mmol/kg body weight.

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What researchers measure

Primary outcomes

  1. Scores for visualization parameter: degree of contrast enhancement

    Blinded readers evaluate contrast of at maximum 5 lesions and 4 normal brain structures in scans taken with and without injection of gadobutrol on a 4-point-scale.

    Time frame: Day of gadobutrol injection (Day 0)

  2. Scores for visualization parameter: border delineation

    Blinded readers evaluate border delineation of at maximum 5 lesions and 4 normal brain structures in scans taken with and without injection of gadobutrol on a 4-point-scale.

    Time frame: Day of gadobutrol injection (Day 0)

  3. Scores for visualization parameter: internal morphology

    Blinded readers evaluate internal morphology of at maximum 5 lesions and 4 normal structures in scans taken with and without gadobutrol on a 3-point-scale.

    Time frame: Day of gadobutrol injection (Day 0)

  4. Number of detected lesions

    Blinded readers determine number of detected lesions in scans with and without gadobutrol.

    Time frame: Day of gadobutrol injection (Day 0)

Secondary outcomes

  1. Percentage of exact match of the MRI diagnosis with the final clinical diagnosis

    An exact match is defined as identical diagnosis given by the blinded reader and the independent standard of truth committee.

    Time frame: Day of gadobutrol injection (Day 0)

  2. Sensitivity and specificity to detect abnormal/normal brain tissue

    Blinded readers classify the brain tissue as normal or abnormal based on the MRI sets.

    Time frame: Day of gadobutrol injection (Day 0)

  3. Sensitivity and specificity to detect malignant Central Nervous System(CNS) lesions

    Percentage to correctly detect presence and absence of malignant lesions which are derived from the MR diagnosis of readers when compared with the diagnosis of the independent standard of truth committee.

    Time frame: Day of gadobutrol injection (Day 0)

  4. Number of participants with treatment emergent adverse events as a measure of safety and tolerability

    Time frame: 3 days after injection (Day 3)

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Study locations

15 sites
  • Nagoya, Aichi 455-8530, Japan
  • Funabashi, Chiba 274-8503, Japan
  • Kitakyushu, Fukuoka 800-0057, Japan
  • Fukuyama, Hiroshima 720-0825, Japan
  • Kobe, Hyogo 650-0047, Japan
  • Kobe, Hyogo 654-0047, Japan
  • Fujisawa, Kanagawa 251-8550, Japan
  • Kawasaki, Kanagawa 210-0013, Japan
  • Yokohama, Kanagawa 226-0025, Japan
  • Daito, Osaka 574-0074, Japan
  • Kishiwada, Osaka 596-8522, Japan
  • Shimonoseki, Yamaguchi 750-0061, Japan
  • Ube, Yamaguchi 755-0151, Japan
  • Fukuoka, 810-0001, Japan
  • Fukuoka, 811-0213, Japan
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Oct 1, 2014, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01660841
Lead sponsor
Bayer
Responsible party
Sponsor
First posted
Aug 9, 2012
Start date
Sep 2012
Primary completion
Aug 2013
Completion
Aug 2013
Last update
Oct 1, 2014

Study contacts

Bayer Study Director
study director · Bayer

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

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