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Vascular DiseasesPhase 3NCT00395733

Efficacy and Safety Study to Evaluate Gadavist (Gadobutrol) as Contrast Agent in Magnetic Resonance Imaging (MRI) of Vascular Diseases in Chinese Patients

A Phase 3 study testing Gadobutrol (Gadavist, Gadovist, BAY86-4875) and Gadopentate dimeglumine (Magnevist, BAY86-4882) in people with Vascular Diseases, run by Bayer at 3 sites in China.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record

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Trial summary

The purpose of this study is to determine if the contrast agent is effective and safe in the Magnetic Resonance Imaging (MRI) of vascular diseases in patients of Chinese origin. Read more about this study

Who is it for?
Ages 18 to 65 years
Conditions the study is for
Vascular Diseases
What is being tested?
Gadobutrol (Gadavist, Gadovist, BAY86-4875) and Gadopentate dimeglumine (Magnevist, BAY86-4882)
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
83 participants
Where
3 sitesChina
Study dates
Oct 2006to Oct 2007
Phase
Phase 3

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Chinese origin
  • Known or suspected blood vessel diseases

Who cannot join

  • Pregnancy
  • Lactation
  • Conditions interfering with MRI
  • Allergy to any contrast agent or any drugs
  • Participation in other trial
  • Require emergency treatment
  • Severely impaired liver and kidney functions

Trial locations and contacts

3 sites in 1 country.

China3 sites
  • Study site

    Beijing, 100853

  • Study site

    Chengdu, Sichuan, 610041

  • Study site

    Shanghai, 200025

Other trials in China

About this study

Official title: A Single-blind, Intra-individual, Crossover, Multicenter Study of the Efficacy, Safety and Tolerability of Gadavist (1.0 M) in Comparison With Magnevist (0.5 M) as Contrast Agent in the Enhanced Magnetic Resonance Angiography (MRA) in Chinese Patients

The purpose of this study is to determine if the contrast agent is effective and safe in the Magnetic Resonance Imaging (MRI) of vascular diseases in patients of Chinese origin.

Read the detailed description

The study has previously been posted by Schering AG, Germany. Schering AG, Germany has been renamed to Bayer HealthCare AG, Germany. Bayer HealthCare AG, Germany is the sponsor of the trial.

Being tested
Gadobutrol (Gadavist, Gadovist, BAY86-4875), Gadopentate dimeglumine (Magnevist, BAY86-4882)
Keywords
Gadovist, Gadavist, MRI Imaging, vascular diseases, Chinese
Medical subject headings
Vascular Diseases

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Gadobutrol (Gadavist, Gadovist, BAY86-4875)Drug

    Participant received a single intravenous injection with Gadobutrol (1.0 M) at a volume of 0.2 mL/kg BW (dose = 0.2 mmol/kg BW) or up to 0.3 mL/kg BW when 3 Fields of View were imaged (up to dose = 0.3 mmol/kg BW)

  • Gadopentate dimeglumine (Magnevist, BAY86-4882)Drug

    Participant received a single intravenous injection with Gadopentate (0.5 M) at a volume of 0.4 mL/kg BW (dose = 0.2 mmol/kg BW) or up to 0.6 mL/kg BW when 3 Fields of View were imaged (up to dose = 0.3 mmol/kg BW)

Study groups in NCT00395733
Study groupRoleWhat they receive
Gadobutrol, then Gadopentate dimeglumineExperimentalPeriod 1: Participant received Gadobutrol 1.0 M (iv: intravenous injection), at a dose of 0.2 mL/kg BW, up to 0.3 mL/kg BW if 3 Fields of View (FOVs) to be imaged; Period 2: Participant received Gadopentate 0.5 M (iv), at a dose of 0.4 mL/kg BW, up to 0.6 mL/kg BW if 3 FOVs to be imaged
Receives: Drug: Gadobutrol (Gadavist, Gadovist, BAY86-4875); Drug: Gadopentate dimeglumine (Magnevist, BAY86-4882)
Gadopentate, dimeglumine then GadobutrolExperimentalPeriod 1: Participant received Gadopentate 0.5 M (iv), at a dose of 0.4 mL/kg BW, up to 0.6 mL/kg BW if 3 FOVs to be imaged; Period 2: Participant received Gadobutrol 1.0 M (iv: intravenous injection), at a dose of 0.2 mL/kg BW, up to 0.3 mL/kg BW if 3 Fields of View (FOVs) to be imaged
Receives: Drug: Gadobutrol (Gadavist, Gadovist, BAY86-4875); Drug: Gadopentate dimeglumine (Magnevist, BAY86-4882)

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of Vessel Segments Visualized With Diagnostic Quality

    Each arterial segment visualized in magnetic resonance angiography (MRA) enhanced by Gadavist and Magnevist was characterized by the on-site investigators and by three independent blinded readers (reader 1, 2 and 3) according to a five-point scale (none/not assessable, poor, moderate, good, excellent), which takes into consideration intravascular contrast quality as well as vessel border delineation. The number of vessel segments with adequate diagnostic quality, i.e. good or excellent scores, was determined for each MRA image.

    Measured: 20-30 seconds after injection

Secondary outcomes (8)
  1. Change in Diagnostic Confidence From Pre- to Post-contrast MRA by Investigator

    The on-site investigators assessed the change in diagnostic confidence in the assessment of MRA scans before and after injection with Gadavist and Magnevist for each participant on a three-point scale as improved, unchanged or worsened.

    Measured: immediately before and 20-30 seconds after injection (precontrast and postcontrast)

  2. Change in Diagnostic Confidence From Pre- to Post-contrast MRA by Blinded Reader 1

    Independent blinded reader 1 assessed the change in diagnostic confidence in the assessment of MRA scans before and after injection with Gadavist and Magnevist for each participant on a three-point scale as improved, unchanged or worsened.

    Measured: immediately before and 20-30 seconds after injection (precontrast and postcontrast)

  3. Change in Diagnostic Confidence From Pre- to Post-contrast MRA by Blinded Reader 2

    Independent blinded reader 2 assessed the change in diagnostic confidence in the assessment of MRA scans before and after injection with Gadavist and Magnevist for each participant on a three-point scale as improved, unchanged or worsened.

    Measured: immediately before and 20-30 seconds after injection (precontrast and postcontrast)

  4. Change in Diagnostic Confidence From Pre- to Post-contrast MRA by Blinded Reader 3

    Independent blinded reader 3 assessed the change in diagnostic confidence in the assessment of MRA scans before and after injection with Gadavist and Magnevist for each participant on a three-point scale as improved, unchanged or worsened.

    Measured: immediately before and 20-30 seconds after injection (precontrast and postcontrast)

  5. MRA Diagnosis by Investigators

    The MRA diagnosis describes the pathology with regard to the extent of a stenosis, i.e., normal (no relevant disease), advanced arteriosclerosis but stenosis <= 50% (exemption: internal carotid artery: stenosis <= 70%), advanced arteriosclerosis, stenosis >50% but <99% (stenosis 50-99%) (exemption: internal carotid artery >70%), occlusion, and not assessable.

    Measured: 20-30 seconds after injection

  6. MRA Diagnosis by Blinded Reader 1

    The MRA diagnosis describes the pathology with regard to the extent of a stenosis, i.e., normal (no relevant disease), advanced arteriosclerosis but stenosis <= 50% (exemption: internal carotid artery: stenosis <= 70%), advanced arteriosclerosis, stenosis >50% but <99% (stenosis 50-99%) (exemption: internal carotid artery >70%), occlusion, and not assessable.

    Measured: 20-30 seconds after injection

  7. MRA Diagnosis by Blinded Reader 2

    The MRA diagnosis describes the pathology with regard to the extent of a stenosis, i.e., normal (no relevant disease), advanced arteriosclerosis but stenosis <= 50% (exemption: internal carotid artery: stenosis <= 70%), advanced arteriosclerosis, stenosis >50% but <99% (stenosis 50-99%) (exemption: internal carotid artery >70%), occlusion, and not assessable.

    Measured: 20-30 seconds after injection

  8. MRA Diagnosis by Blinded Reader 3

    The MRA diagnosis describes the pathology with regard to the extent of a stenosis, i.e., normal (no relevant disease), advanced arteriosclerosis but stenosis <= 50% (exemption: internal carotid artery: stenosis <= 70%), advanced arteriosclerosis, stenosis >50% but <99% (stenosis 50-99%) (exemption: internal carotid artery >70%), occlusion, and not assessable.

    Measured: 20-30 seconds after injection

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Nov 2006 (estimated)
  2. Study startOct 2006
  3. Primary completionOct 2007
  4. Study completionOct 2007

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Diagnosis
Allocation
Randomised
Intervention model
Crossover
Masking
Single blind
Who is masked
Participant
Enrolment
83 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00395733
Sponsor's protocol ID
91537
Other IDs
309762
Status last verified
Nov 2013
First submitted
2 Nov 2006
Last updated
18 Dec 2013
Data monitoring committee
No

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