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Magnetic Resonance ImagingPhase 3NCT00937391

Contrast-enhanced MRI in Children 2 Months to <2 Years

A Phase 3 study testing Gadopentetate dimeglumine (Magnevist, BAY86-6661) in people with Magnetic Resonance Imaging, run by Bayer at 13 sites in 2 countries.

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 pharmacokinetics, safety and efficacy of Magnevist in children 2 months to < 2 years of age Read more about this study

Who is it for?
Ages 2 to 23 months
Conditions the study is for
Magnetic Resonance Imaging
What is being tested?
Gadopentetate dimeglumine (Magnevist, BAY86-6661)
Type of treatment
Injection or infusion
Could I receive a placebo?
No, everyone receives an active treatment
How many people
54 participants
Where
13 sitesin 2 countries
Study dates
Jan 2010to Sep 2010
Phase
Phase 3
Are there results?
Yes, posted in the registrySummary in the doctors' view

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 2 to 23 months
  • All sexes
  • No healthy volunteers
  • Child

Who may be able to join

  • Age: 2 months to < 2 years (23 months)
  • Participants (male/female) who are scheduled to undergo gadolinium-enhanced MRI
  • Able to comply with the study procedures

Who cannot join

  • Clinical unstable participants (eg, intensive care unit)
  • Renal Insufficiency
  • Participants undergoing chemotherapy </= 48 hours prior to and up to 24 hours after the administration of Magnevist.

Trial locations and contacts

13 sites in 2 countries.

13 sites in 2 countries

United States9 sites
  • Study site

    Akron, Ohio, 44308

  • Study site

    Aurora, Colorado, 80045

  • Study site

    Chicago, Illinois, 60614

  • Study site

    Hershey, Pennsylvania, 17033

  • Study site

    Houston, Texas, 77030

  • Study site

    Iowa City, Iowa, 52242

  • Study site

    Kansas City, Missouri, 64108-9898

  • Study site

    San Diego, California, 92123

  • Study site

    St Louis, Missouri, 63110

Other trials in United States

Germany4 sites
  • Study site

    Dresden, Saxony, 01307

  • Study site

    Halle, Saxony-Anhalt, 06120

  • Study site

    Jena, Thuringia, 07740

  • Study site

    Kiel, Schleswig-Holstein, 24105

Other trials in Germany

About this study

Official title: Open-label, Multi-center, Two-stage, Age Stratified, Pharmacokinetic, Safety, and Efficacy Study in Children 2 Months to < 2 Years of Age Undergoing Magnevist Injection Enhanced MRI

The purpose of this study is to determine pharmacokinetics, safety and efficacy of Magnevist in children 2 months to < 2 years of age

Read the detailed description

Safety issues are addressed in the AE section

Being tested
Gadopentetate dimeglumine (Magnevist, BAY86-6661)
Keywords
MRI agents, Magnevist

What participants receive

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

  • Gadopentetate dimeglumine (Magnevist, BAY86-6661)Drug

    For stage 1: Participants received an IV injection of 0.05 mmol/kg Body Weight (BW) (0.1 mL/kg BW) Magnevist. Upon completion of the MR imaging, the participants received another injection of 0.05 mmol/kg for a total cumulative dose of 0.1 mmol/kg BW (0.2 mL/kg BW). For stage 2: Participants received the optimal efficacious dose established in Stage 1 as a single IV injection of Magnevist Injection (0.1 mmol/kg BW (0.2 mL/kg BW)).

Study groups in NCT00937391
Study groupRoleWhat they receive
Gadopentetate dimeglumine (Magnevist, BAY86-6661)ExperimentalFor stage 1: Participants received an IV injection of 0.05 mmol/kg Body Weight (BW) (0.1 mL/kg BW) Magnevist. Upon completion of the MR imaging, the participants received another injection of 0.05 mmol/kg for a total cumulative dose of 0.1 mmol/kg BW (0.2 mL/kg BW). For stage 2: Participants received the optimal efficacious dose established in Stage 1 as a single IV injection of Magnevist Injection (0.1 mmol/kg BW (0.2 mL/kg BW)).
Receives: Drug: Gadopentetate dimeglumine (Magnevist, BAY86-6661)

What is being measured

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

  1. Number of Participants With Diagnostic Adequacy - Open-label Clinical Investigators (Per Protocol Set)

    A clinical judgment by the open-label Clinical Investigators (CIs) as to whether ("yes") or not ("no") the CI could make a diagnosis from the image.

    Measured: Within 5 minutes after injection

  2. Dose Determined by Blinded Readers to be Superior for Diagnosis

    Dose superiority was a calculation based upon the Blinder Readers' assessment of 4 visualization parameters

    Measured: Within 5 minutes after injection

  3. Paired-dose Comparison of Number of Participants With Dose Superiority Determined for 4 Lesion Visualization Variables - Blinded Readers

    For each participant, the Blinded Reader indicated which dose had better contrast enhancement, better border delineation, clearer internal morphology, and provided more diagnostic information. The dose chosen for 3 or 4 of these variables was the selected dose for that Reader and participant. If each dose was superior on 2 variables, the dose which provided more diagnostic information was selected for that participant. The dose selected for the majority of participants was the dose selected by that Reader; if chosen by 2 or 3 Readers, it was the selected dose.

    Measured: Within 5 minutes after injection

  4. PK Analysis - Total Clearance (CL)

    Total clearance is the fraction of the volume of distribution (Vd) which is completely purified per unit of time and depends also on the plasma half-life of the drug.

    Measured: 20 to 45 min and 4 to 8 hours post injection

  5. PK Analysis - Total Clearance (CL)/Body Weight (BW)

    CL/BW = total clearance normalized by BW

    Measured: 20 to 45 min and 4 to 8 hours post injection

  6. PK Analysis - Volume of Distribution at Steady State (Vss)

    Vss is an estimate of drug distribution independent of the elimination process and is proportional to the amount of drug in the body versus the drug plasma concentration at steady-state.

    Measured: 20 to 45 min and 4 to 8 hours post injection

  7. PK Analysis - Volume of Distribution at Steady State (Vss) /Body Weight (BW)

    Vss/BW = volume of distribution at steady state normalized by body weight

    Measured: 20 to 45 min and 4 to 8 hours post injection

  8. PK Analysis - Area Under the Drug Concentration-time Curve (AUC)

    AUC = Area under the drug concentration-time curve from administration to infinity

    Measured: Samples taken 20 to 45 min and 4 to 8 hours post injection. AUC calculated from time of injection to infinity.

  9. PK Analysis - t 1/2

    t 1/2 = termination elimination half-life calculated from the area under the drug concentration-time curve from administration to infinity

    Measured: Samples taken at 20 to 45 min and at 4 to 8 hours post injection; t 1/2 calculated from area under the drug concentration-time curve from administration to infinity

Secondary outcomes (20)
  1. Number of Participants With Number of Lesions Detected - Stage 1

    BR = blinded reader; CI = clinical investigator; unenh. image = unenhanced image; comb. image= combined unenhanced and enhanced image. The Blinded Readers and the open-label Clinical Investigators determined the number of participants with 0, 1, 2, and 3 or more lesions.

    Measured: Within 5 minutes after injection

  2. Number of Participants With Number of Lesions Detected - Stage 2

    BR = blinded reader; CI = clinical investigator; unenh. image = unenhanced image; comb. image= combined unenhanced and enhanced image. The Blinded Readers and the open-label Clinical Investigators determined the number of participants with 0, 1, 2, and 3 or more lesions.

    Measured: Within 5 minutes after injection

  3. Number of Participants With Quality of Lesion Visualization - Stage 1

    BR = blinded reader; CI = clinical investigator. The Blinded Readers and the open-label Clinical Investigators determined the quality of lesion visualization with the unenhanced and the combined image sets based on a 3-point scale (1=excellent - lesion clearly seen and diagnosis possible; 2=fair but adequate - most of lesion seen and diagnosis possible; and 3=poor - lesion barely seen and diagnosis not possible)

    Measured: Within 5 minutes after injection

  4. Number of Participants With Quality of Lesion Visualization - Stage 2

    BR = blinded reader; CI = clinical investigator. The Blinded Readers and the open-label Clinical Investigators determined the quality of lesion visualization with the unenhanced and the combined image sets based on a 3-point scale (1=excellent - lesion clearly seen and diagnosis possible; 2=fair but adequate - most of lesion seen and diagnosis possible; and 3=poor - lesion barely seen and diagnosis not possible)

    Measured: Within 5 minutes after injection

  5. Number of Participants With Quality of Border Delineation - Stage 1

    BR = blinded reader; CI = clinical investigator. The Blinded Readers and the open-label Clinical Investigators determined the quality of border delineation based on a 3-point scale (1=excellent - border completely delineated; 2=fair but adequate - some of the border is delineated; and 3=poor - entire or almost the entire border is not delineated) by image set

    Measured: Within 5 minutes after injection

  6. Number of Participants With Quality of Border Delineation - Stage 2

    BR = blinded reader; CI = clinical investigator. The Blinded Readers and the open-label Clinical Investigators determined the quality of border delineation based on a 3-point scale (1=excellent - border completely delineated; 2=fair but adequate - some of the border is delineated; and 3=poor - entire or almost the entire border is not delineated) by image set

    Measured: Within 5 minutes after injection

  7. Most Frequent Diagnostic Findings With Unenhanced Images - Stage 1

    BR = blinded reader; CI = clinical investigator. The Blinded Readers and the open-label Clinical Investigators determined the most frequent diagnostic findings with the unenhanced images

    Measured: Within 5 minutes after injection

  8. Most Frequent Diagnostic Findings With Unenhanced Images - Stage 2

    BR = blinded reader; CI = clinical investigator. The Blinded Readers and the open-label Clinical Investigators determined the most frequent diagnostic findings with the unenhanced images

    Measured: Within 5 minutes after injection

  9. Overall Number of Participants With Change in Diagnosis From Unenhanced to Combined Images - Stage 1

    The Blinded Readers and the open-label Clinical Investigators determined the number of participants with a change in diagnosis from unenhanced to combined images. BR = blinded reader; CI = clinical investigator

    Measured: Within 5 minutes after injection

  10. Overall Number of Participants With Change in Diagnosis From Unenhanced to Combined Images - Stage 2

    The Blinded Readers and the open-label Clinical Investigators determined the number of participants with a change in diagnosis from unenhanced to combined images. BR = blinded reader; CI = clinical investigator

    Measured: Within 5 minutes after injection

  11. Number of Participants With Specific Change in the Diagnosis From Unenhanced to Combined Images - Stage 1

    Those participants for whom the diagnosis changed for at least 1 Blinded Reader from unenhanced to combined images are presented for Stage 1. For completeness, the corresponding data for these participants are presented for the open-label Clinical Investigators. BR=Blinded Reader; CI=Clinical Investigator.

    Measured: Within 5 minutes after injection

  12. Number of Participants With Specific Change in the Diagnosis From Unenhanced to Combined Images - Stage 2

    Those participants for whom the diagnosis changed for at least 1 Blinded Reader from unenhanced to combined images are presented for Stage 2. For completeness, the corresponding data for these participants are presented for the open-label Clinical Investigators. BR=Blinded Reader; CI=Clinical Investigator

    Measured: Within 5 minutes after injection

  13. Number of Participants With Diagnostic Confidence - Stage 1

    The overall diagnostic confidence of the Blinded Readers and the open-label Clinical Investigators was indicated on a 3-point scale: 1=not confident; 2=confident; and 3=very confident. BR=Blinder Reader; CI=Clinical Investigator

    Measured: Within 5 minutes after injection

  14. Number of Participants With Diagnostic Confidence - Stage 2

    The overall diagnostic confidence of the Blinded Readers and the open-label Clinical Investigators was indicated on a 3-point scale: 1=not confident; 2=confident; and 3=very confident. BR=Blinder Reader; CI=Clinical Investigator

    Measured: Within 5 minutes after injection

  15. Management Based on Unenhanced Images - Stage 1

    For Stage 1 based on unenhanced images, the recommended management is presented as determined by the open-label Clinical Investigators.

    Measured: Within 5 minutes before injection

  16. Management Based on Unenhanced Images - Stage 2

    For Stage 2 based on unenhanced images, the recommended management is presented as determined by the open-label Clinical Investigators.

    Measured: Within 5 minutes before injection

  17. Overall Number of Participants With Change in Management From Unenhanced to Combined Images - Stage 1

    For Stage 1, the number of participants for whom the recommended management of the open-label Clinical Investigators changed from unenhanced to combined images is presented for both doses.

    Measured: Within 5 minutes after injection

  18. Overall Number of Participants With Change in Management From Unenhanced to Combined Images - Stage 2

    For Stage 2, the number of participants for whom the recommended management of the open-label Clinical Investigators changed from unenhanced to combined images is presented for the optimal efficacious dose determined in Stage 1.

    Measured: Within 5 minutes after injection

  19. Number of Participants With Specific Change in Management From Unenhanced to Combined Images - Stage 1

    The actual change in management from unenhanced to combined images recommended by the open-label Clinical Investigators is presented for both doses in Stage 1

    Measured: Within 5 minutes after injection

  20. Number of Participants With Specific Change in Management From Unenhanced to Combined Images - Stage 2

    The actual change in management from unenhanced to combined images recommended by the open-label Clinical Investigators is presented in Stage 2 for the optimal efficacious dose determined in Stage 1

    Measured: Within 5 minutes 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 posted13 Jul 2009 (estimated)
  2. Study startJan 2010
  3. Primary completionSep 2010
  4. Study completionSep 2010

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
Non-randomised
Intervention model
Single group
Masking
None (open label)
Enrolment
54 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00937391
Sponsor's protocol ID
91784
Other IDs
2009-013081-17, 312046, 2009
Status last verified
Oct 2015
First submitted
10 Jul 2009
Last updated
18 Nov 2015
Data monitoring committee
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing Gadopentetate dimeglumine (Magnevist, BAY86-6661) in people with Magnetic Resonance Imaging, run by Bayer at 13 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 3 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 18 Nov 2015. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 13 sites in United States, Germany. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

Yes. Results are posted in the registry (first posted 13 Oct 2011). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of Participants With Diagnostic Adequacy - Open-label Clinical Investigators (Per Protocol Set) (time frame: Within 5 minutes after injection). The study lists 9 primary outcomes in all. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 18 Nov 2015.

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