Intraoperative MRI and 5-ALA Guidance to Improve the Extent of Resection in Brain Tumor Surgery (IMAGER)
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ClinicalTrials.gov Identifier: NCT01798771 |
Recruitment Status : Unknown
Verified February 2013 by Dr. Christian Senft, Johann Wolfgang Goethe University Hospital.
Recruitment status was: Not yet recruiting
First Posted : February 26, 2013
Last Update Posted : February 26, 2013
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Condition or disease | Intervention/treatment | Phase |
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Primary Malignant Neoplasm of Nervous System Glioma Glioblastoma Metastasis | Procedure: Interventional arm Procedure: Control arm | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 108 participants |
Allocation: | Randomized |
Intervention Model: | Parallel Assignment |
Masking: | Single (Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | Intraoperative MRI and 5-ALA Guidance to Improve the Extent of Resection in Brain Tumor Surgery |
Study Start Date : | March 2013 |
Estimated Primary Completion Date : | February 2015 |
Estimated Study Completion Date : | February 2016 |

Arm | Intervention/treatment |
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Control arm
5-ALA fluorescence guided surgery in patients with contrast enhancing tumors.
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Procedure: Control arm
5-ALA fluorescence guided surgery in patients with contrast enhancing tumors.
Other Names:
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Interventional arm
5-ALA fluorescence guided surgery with the additional use of an intraoperative MRI for resection control in patients with contrast enhancing tumors.
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Procedure: Interventional arm
5-ALA fluorescence guided surgery with the additional use of an intraoperative MRI for resection control in patients with contrast enhancing tumors.
Other Names:
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- Extent of Resection [ Time Frame: Early postoperative MRI within 72 hrs ]The primary efficacy endpoint is the rate of complete resections according to early postoperative MRI.
- Volumetric extent of resection [ Time Frame: Early postoperative MRI within 72hrs ]Secondary endpoint is the volumetric extent of resection as determined by direct comparison of preoperative and early postoperative tumor volumes.
- PFS 6 [ Time Frame: 6 months following surgery ]Secondary endpoint is the rate of subjects with progression-free survival (PFS) 6 months after tumor resection
- PFS 12 [ Time Frame: 12 months following surgery ]Secondary endpoint is the rate of subjects with progression-free survival (PFS) 12 months after tumor resection
- Quality of life [ Time Frame: 6 months/12 months ]Patient quality of life at 6 and 12 months following surgery is a secondary endpoint
- NIHSS [ Time Frame: 5 days following surgery ]The change of NIHSS (The NIH Stroke Scale) score is an other pre-specified outcome measure

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Ages Eligible for Study: | 18 Years and older (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- adult patient (> 18 years) able to give informed consent
- primary supratentorial intra-axial brain tumor exhibiting contrast enhancement suspected to be malignant glioma
- tumor must be deemed completely resectable by neurosurgeon
- diagnostic MRI
Exclusion Criteria:
- patient unable or unwilling to give informed consent
- infratentorial tumor location
- tumor location in or near eloquent areas
- multifocal tumor
- existance of contraindications to undergo MRI examination
- previous surgical treatment for an intraaxial brain tumor

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01798771
Contact: Christian Senft, MD PhD | 069-6301 ext 5939 | c.senft@med.uni-frankfurt.de |
Germany | |
Klinik für Neurochirurgie Johann Wolfgang Goethe University | |
Frankfurt am Main, Hessen, Germany, 60528 | |
Contact: Christian Senft, MD PhD 069-6301 ext 5939 c.senft@med.uni-frankfurt.de |
Principal Investigator: | Christian Senft, MD PhD | Dept. of Neurosurgery, Johann Wolfgang Goethe University Hospital |
Responsible Party: | Dr. Christian Senft, PD Dr. med. Christian Senft, Johann Wolfgang Goethe University Hospital |
ClinicalTrials.gov Identifier: | NCT01798771 |
Other Study ID Numbers: |
JohannWGUH_IMAGER 206/12 ( Other Identifier: Ethics Committee Johann Wolfgang Goethe University ) |
First Posted: | February 26, 2013 Key Record Dates |
Last Update Posted: | February 26, 2013 |
Last Verified: | February 2013 |
primary brain tumor malignant glioma intraoperative MRI 5-ALA |
Glioblastoma Glioma Brain Neoplasms Neoplasms Nervous System Neoplasms Astrocytoma Neoplasms, Neuroepithelial Neuroectodermal Tumors Neoplasms, Germ Cell and Embryonal Neoplasms by Histologic Type |
Neoplasms, Glandular and Epithelial Neoplasms, Nerve Tissue Central Nervous System Neoplasms Neoplasms by Site Brain Diseases Central Nervous System Diseases Nervous System Diseases Aminolevulinic Acid Photosensitizing Agents Dermatologic Agents |