Dose Finding Study of Gadavist in Central Nervous System (CNS) Magnetic Resonance Imaging (MRI)

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Bayer
ClinicalTrials.gov Identifier:
NCT00862459
First received: November 26, 2008
Last updated: December 11, 2013
Last verified: December 2013
Results First Received: September 14, 2011  
Study Type: Interventional
Study Design: Allocation: Randomized;   Endpoint Classification: Safety/Efficacy Study;   Intervention Model: Parallel Assignment;   Masking: Double Blind (Subject, Investigator, Outcomes Assessor);   Primary Purpose: Diagnostic
Conditions: Brain Diseases
Spinal Cord Diseases
Interventions: Drug: Gadobutrol~0.03 mmol/kg BW (Gadavist, Gadovist, BAY86-4875)
Drug: Gadobutrol~0.1 mmol/kg BW (Gadavist, Gadovist, BAY86-4875)
Drug: Gadobutrol~0.3 mmol/kg BW (Gadavist, Gadovist, BAY86-4875)
Drug: OptiMARK~0.1 mmol/kg BW

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
The date of the first participant's first visit was 27 August 2005. The date of the last participant's last visit was 26 March 2007.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
242 participants were screened: 5 were screening failures (withdrew consent, did not meet study criteria, other). The remaining 237 were randomized to the 0.3, 0.1, or 0.03 millimole per kilogram (mmol/kg) group.

Reporting Groups
  Description
Gadobutrol~0.03 mmol/kg BW (Gadavist, BAY86-4875) Participant received one dose of 0.03 mmol/kg body weight (BW) of Gadobutrol and one dose of 0.1 mmol/kg BW of OptiMARK. The order in which the participants received Gadobutrol and OptiMARK was randomized. Gadobutrol was administered via a power injector at a rate of 5 milliliter per second (mL/s) followed by a 20 mL 0.9% saline flush at the same rate.
Gadobutrol~0.1 mmol/kg BW (Gadavist, BAY86-4875) Participant received one dose of 0.1 mmol/kg BW of Gadobutrol and one dose of 0.1 mmol/kg BW of OptiMARK. The order in which the participants received Gadobutrol and OptiMARK was randomized. Gadobutrol was administered via a power injector at a rate of 5 mL/s followed by a 20 mL 0.9% saline flush at the same rate.
Gadobutrol~0.3 mmol/kg BW (Gadavist, BAY86-4875) Participant received one dose of 0.3 mmol/kg BW of Gadobutrol and one dose of 0.1 mmol/kg BW of OptiMARK. The order in which the participants received Gadobutrol and OptiMARK was randomized. Gadobutrol was administered via a power injector at a rate of 5 mL/s followed by a 20 mL 0.9% saline flush at the same rate.

Participant Flow:   Overall Study
    Gadobutrol~0.03 mmol/kg BW (Gadavist, BAY86-4875)     Gadobutrol~0.1 mmol/kg BW (Gadavist, BAY86-4875)     Gadobutrol~0.3 mmol/kg BW (Gadavist, BAY86-4875)  
STARTED     72     93     72  
Participants Received Treatment     70 [1]   90 [2]   69 [3]
COMPLETED     66     85     66  
NOT COMPLETED     6     8     6  
Lost to Follow-up                 1                 2                 2  
Protocol Violation                 1                 0                 0  
Withdrawal by Subject                 1                 1                 3  
Adverse Event                 0                 1                 0  
Personal reasons                 1                 0                 0  
Operation                 1                 1                 0  
Intravenous (IV) site problems                 1                 0                 1  
Unable to hold still for imaging                 0                 1                 0  
Inclusion/exclusion criteria not met                 0                 1                 0  
Administrative problems                 0                 1                 0  
[1] Number reflects all treated participants of whom 67 received Gadobutrol and 70 received OptiMARK
[2] Number reflects all treated participants of whom 90 received Gadobutrol and 88 received OptiMARK
[3] Number reflects all treated participants of whom 68 received Gadobutrol and 69 received OptiMARK



  Baseline Characteristics
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Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
No text entered.

Reporting Groups
  Description
Gadobutrol~0.03 mmol/kg BW (Gadavist, BAY86-4875) Participant received one dose of 0.03 millimole per kilogram of body weight (mmol/kg BW) of Gadobutrol and one dose of 0.1 mmol/kg BW of OptiMARK. The order in which the participants received Gadobutrol and OptiMARK was randomized. Gadobutrol was administered via a power injector at a rate of 5 milliliter per second (mL/s) followed by a 20 mL 0.9% saline flush at the same rate.
Gadobutrol~0.1 mmol/kg BW (Gadavist, BAY86-4875) Participant received one dose of 0.1 mmol/kg BW of Gadobutrol and one dose of 0.1 mmol/kg BW of OptiMARK. The order in which the participants received Gadobutrol and OptiMARK was randomized. Gadobutrol was administered via a power injector at a rate of 5 mL/s followed by a 20 mL 0.9% saline flush at the same rate.
Gadobutrol~0.3 mmol/kg BW (Gadavist, BAY86-4875) Participant received one dose of 0.3 mmol/kg BW of Gadobutrol and one dose of 0.1 mmol/kg BW of OptiMARK. The order in which the participants received Gadobutrol and OptiMARK was randomized. Gadobutrol was administered via a power injector at a rate of 5 mL/s followed by a 20 mL 0.9% saline flush at the same rate.
Total Total of all reporting groups

Baseline Measures
    Gadobutrol~0.03 mmol/kg BW (Gadavist, BAY86-4875)     Gadobutrol~0.1 mmol/kg BW (Gadavist, BAY86-4875)     Gadobutrol~0.3 mmol/kg BW (Gadavist, BAY86-4875)     Total  
Number of Participants  
[units: participants]
  70     90     69     229  
Age, Customized  
[units: Years]
       
<45 years     36     42     29     107  
45-64 years     24     39     28     91  
>=65 years     10     9     12     31  
Gender  
[units: Participants]
       
Female     33     58     38     129  
Male     37     32     31     100  
Race/Ethnicity, Customized  
[units: Participants]
       
Caucasian     30     45     29     104  
Black     7     8     3     18  
Hispanic     3     6     3     12  
Asian     1     1     0     2  
Other     29     30     34     93  



  Outcome Measures
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1.  Primary:   Categorical Visualization Score (CVS)   [ Time Frame: up to 2 hours after the injection of study medication ]

2.  Primary:   Difference in Number of Lesions Detected in Pre-contrast and Combined Pre-/Post-contrast MRI.   [ Time Frame: up to 2 hours after the injection of study medication ]

3.  Primary:   Assessment of Lesion Contrast Enhancement   [ Time Frame: up to 2 hours after the injection of study medication ]

4.  Primary:   Assessment of Border Delineation   [ Time Frame: up to 2 hours after the injection of study medication ]

5.  Primary:   Assessment of Internal Morphology   [ Time Frame: up to 2 hours after the injection of study medication ]

6.  Primary:   Contrast to Noise Ratio (CNR) Between White and Gray Matter With Gadobutrol Perfusion MRI   [ Time Frame: up to 2 hours after the injection of study medication ]

7.  Secondary:   Accuracy Comparison of Gadobutrol Doses – Detection of Matched Lesions: Blinded Reader 1   [ Time Frame: up to 2 hours after the injection of study medication ]

8.  Secondary:   Accuracy Comparison of Gadobutrol Doses – Detection of Matched Lesions: Blinded Reader 2   [ Time Frame: up to 2 hours after the injection of study medication ]

9.  Secondary:   Accuracy Comparison of Gadobutrol Doses – Detection of Matched Lesions: Blinded Reader 3   [ Time Frame: up to 2 hours after the injection of study medication ]

10.  Secondary:   Accuracy Comparison of Gadobutrol Doses – Detection of Matched Enhanced Lesions: Blinded Reader 1   [ Time Frame: up to 2 hours after the injection of study medication ]

11.  Secondary:   Accuracy Comparison of Gadobutrol Doses – Detection of Matched Enhanced Lesions: Blinded Reader 2   [ Time Frame: up to 2 hours after the injection of study medication ]

12.  Secondary:   Accuracy Comparison of Gadobutrol Doses – Detection of Matched Enhanced Lesions: Blinded Reader 3   [ Time Frame: up to 2 hours after the injection of study medication ]

13.  Secondary:   Evaluation of the Correct Diagnosis Following Gadobutrol-enhanced and Unenhanced MRI   [ Time Frame: up to 2 hours after the injection of study medication ]

14.  Secondary:   Evaluation of the Diagnostic Confidence Based on Unenhanced MRI and Combined Unenhanced and Enhanced MRI   [ Time Frame: up to 2 hours after the injection of study medication ]

15.  Secondary:   Evaluation of Perfusion Map Quality (Uncorrected Cerebral Blood Volume [CBV]) – Blinded Reader 1   [ Time Frame: up to 2 hours after the injection of study medication ]

16.  Secondary:   Evaluation of Perfusion Map Quality (Uncorrected Cerebral Blood Volume (CBV)) – Blinded Reader 2   [ Time Frame: up to 2 hours after the injection of study medication ]

17.  Secondary:   Evaluation of Perfusion Map Quality (Uncorrected Cerebral Blood Volume (CBV)) – Blinded Reader 3   [ Time Frame: up to 2 hours after the injection of study medication ]

18.  Secondary:   Evaluation of Perfusion Map Quality (Corrected Cerebral Blood Volume (CBV)) – Blinded Reader 1   [ Time Frame: up to 2 hours after the injection of study medication ]

19.  Secondary:   Evaluation of Perfusion Map Quality (Corrected Cerebral Blood Volume (CBV)) – Blinded Reader 2   [ Time Frame: up to 2 hours after the injection of study medication ]

20.  Secondary:   Evaluation of Perfusion Map Quality (Corrected Cerebral Blood Volume (CBV)) – Blinded Reader 3   [ Time Frame: up to 2 hours after the injection of study medication ]

21.  Secondary:   Evaluation of Perfusion Map Quality (Cerebral Blood Flow (CBF)) – Blinded Reader 1   [ Time Frame: up to 2 hours after the injection of study medication ]

22.  Secondary:   Evaluation of Perfusion Map Quality (Cerebral Blood Flow (CBF)) – Blinded Reader 2   [ Time Frame: up to 2 hours after the injection of study medication ]

23.  Secondary:   Evaluation of Perfusion Map Quality (Cerebral Blood Flow (CBF)) – Blinded Reader 3   [ Time Frame: up to 2 hours after the injection of study medication ]

24.  Secondary:   Evaluation of Perfusion Map Quality (Time to Peak (TTP)) – Blinded Reader 1   [ Time Frame: up to 2 hours after the injection of study medication ]

25.  Secondary:   Evaluation of Perfusion Map Quality (Time to Peak (TTP)) – Blinded Reader 2   [ Time Frame: up to 2 hours after the injection of study medication ]

26.  Secondary:   Evaluation of Perfusion Map Quality (Time to Peak (TTP)) – Blinded Reader 3   [ Time Frame: up to 2 hours after the injection of study medication ]

27.  Secondary:   Evaluation of Perfusion Map Quality (Mean Transit Time (MTT)) – Blinded Reader 1   [ Time Frame: up to 2 hours after the injection of study medication ]

28.  Secondary:   Evaluation of Perfusion Map Quality (Mean Transit Time (MTT)) – Blinded Reader 2   [ Time Frame: up to 2 hours after the injection of study medication ]

29.  Secondary:   Evaluation of Perfusion Map Quality (Mean Transit Time (MTT)) – Blinded Reader 3   [ Time Frame: up to 2 hours after the injection of study medication ]

30.  Secondary:   Evaluation of Perfusion Map Quality (Permeability Factor (PF) – Blinded Reader 1   [ Time Frame: up to 2 hours after the injection of study medication ]

31.  Secondary:   Evaluation of Perfusion Map Quality (Permeability Factor (PF) – Blinded Reader 2   [ Time Frame: up to 2 hours after the injection of study medication ]

32.  Secondary:   Evaluation of Perfusion Map Quality (Permeability Factor (PF)) – Blinded Reader 3   [ Time Frame: up to 2 hours after the injection of study medication ]

33.  Secondary:   Evaluation of Perfusion Map Parameter Value (Uncorrected Cerebral Blood Volume (CBV)) – Independent Radiologist   [ Time Frame: up to 2 hours after the injection of study medication ]

34.  Secondary:   Evaluation of Perfusion Map Parameter Value (Corrected Cerebral Blood Volume (CBV)) – Independent Radiologist   [ Time Frame: up to 2 hours after the injection of study medication ]

35.  Secondary:   Evaluation of Perfusion Map Parameter Value (Cerebral Blood Flow (CBF)) – Independent Radiologist   [ Time Frame: up to 2 hours after the injection of study medication ]

36.  Secondary:   Evaluation of Perfusion Map Parameter Value (Time to Peak (TTP)) – Independent Radiologist   [ Time Frame: up to 2 hours after the injection of study medication ]

37.  Secondary:   Evaluation of Perfusion Map Parameter Value (Mean Transit Time (MTT)) – Independent Radiologist   [ Time Frame: up to 2 hours after the injection of study medication ]

38.  Secondary:   Evaluation of Perfusion Map Parameter Value (Permeability Factor (PF)) – Independent Radiologist   [ Time Frame: up to 2 hours after the injection of study medication ]

39.  Secondary:   Evaluation of Perfusion Map Artifacts (Uncorrected Cerebral Blood Volume (CBV)) – Blinded Reader   [ Time Frame: up to 2 hours after the injection of study medication ]

40.  Secondary:   Evaluation of Perfusion Map Artifacts (Corrected Cerebral Blood Volume (CBV)) – Blinded Reader   [ Time Frame: up to 2 hours after the injection of study medication ]

41.  Secondary:   Evaluation of Perfusion Map Artifacts (Cerebral Blood Flow (CBF)) – Blinded Reader   [ Time Frame: up to 2 hours after the injection of study medication ]

42.  Secondary:   Evaluation of Perfusion Map Artifacts (Time to Peak (TTP)) – Blinded Reader   [ Time Frame: up to 2 hours after the injection of study medication ]

43.  Secondary:   Evaluation of Perfusion Map Artifacts (Mean Transit Time (MTT)) – Blinded Reader   [ Time Frame: up to 2 hours after the injection of study medication ]

44.  Secondary:   Evaluation of Perfusion Map Artifacts (Permeability Factor (PF)) – Blinded Reader   [ Time Frame: up to 2 hours after the injection of study medication ]

45.  Secondary:   Evaluation of MRI Tumor Grade Agreement With Biopsy Results by Dose Group   [ Time Frame: up to 2 hours after the injection of study medication ]

46.  Secondary:   Contrast to Noise Ratio (CNR) of Lesion/Gray Matter and Lesion/White Matter   [ Time Frame: up to 2 hours after the injection of study medication ]


  Serious Adverse Events


  Other Adverse Events


  Limitations and Caveats
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Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
OptiMARK was used as a standard of reference in this study. A formal comparison of the efficacy of gadobutrol and OptiMARK was not specified prospectively in the statistical analysis plan. For completeness, the safety data of OptiMARK is presented.


  More Information
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Certain Agreements:  
Principal Investigators are NOT employed by the organization sponsoring the study.
There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
The agreement is:
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is less than or equal to 60 days. The sponsor cannot require changes to the communication and cannot extend the embargo.
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is more than 60 days but less than or equal to 180 days. The sponsor cannot require changes to the communication and cannot extend the embargo.


Results Point of Contact:  
Name/Title: Therapeutic Area Head
Organization: BAYER
e-mail: clinical-trials-contact@bayerhealthcare.com


No publications provided by Bayer

Publications automatically indexed to this study:

Responsible Party: Bayer
ClinicalTrials.gov Identifier: NCT00862459     History of Changes
Other Study ID Numbers: 91400, 308200
Study First Received: November 26, 2008
Results First Received: September 14, 2011
Last Updated: December 11, 2013
Health Authority: United States: Food and Drug Administration