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Clinical Trial Details — Status: Recruiting

Administrative data

NCT number NCT04708171
Other study ID # MEC-2020-081-2
Secondary ID
Status Recruiting
Phase
First received
Last updated
Start date January 1, 2022
Est. completion date October 1, 2026

Study information

Verified date May 2022
Source Erasmus Medical Center
Contact Jasper Gerritsen, MD
Phone +31629119553
Email j.gerritsen@erasmusmc.nl
Is FDA regulated No
Health authority
Study type Observational

Clinical Trial Summary

The study is designed as an international, multicenter prospective cohort study. Patients with presumed glioblastoma (GBM) in- or near eloquent areas on diagnostic MRI will be selected by neurosurgeons. Patients will be treated following one of three study arms: 1) a craniotomy where the resection boundaries for motor or language functions will be identified by the "awake" mapping technique (awake craniotomy, AC); 2) a craniotomy where the resection boundaries for motor functions will be identified by "asleep" mapping techniques (MEPs, SSEPs, continuous dynamic mapping); 3) a craniotomy where the resection boundaries will not be identified by any mapping technique ("no mapping group"). All patients will receive follow-up according to standard practice.


Recruitment information / eligibility

Status Recruiting
Enrollment 453
Est. completion date October 1, 2026
Est. primary completion date October 1, 2025
Accepts healthy volunteers No
Gender All
Age group 18 Years to 90 Years
Eligibility Inclusion Criteria: 1. Age =18 years and = 90 years 2. Tumor diagnosed as GBM on MRI as assessed by the neurosurgeon 3. Tumors situated in or near eloquent areas; motor cortex, sensory cortex, subcortical pyramidal tract, speech areas or visual areas as indicated on MRI (Sawaya Grading II and II) 4. The tumor is suitable for resection (according to neurosurgeon) 5. Written informed consent Exclusion Criteria: 1. Tumors of the cerebellum, brain stem or midline 2. Multifocal contrast enhancing lesions 3. Medical reasons precluding MRI (e.g. pacemaker) 4. Inability to give written informed consent (e.g. because of severe language barrier) 5. Second primary malignancy within the past 5 years with the exception of adequately treated in situ carcinoma of any organ or basal cell carcinoma of the skin

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
Awake mapping under local anesthesia
During an awake craniotomy, the patient is awake and cooperative during the resection of the tumor while the surgeon uses electro(sub)cortical mapping to prevent damage to eloquent areas.
Asleep mapping under general anesthesia
During asleep mapping under general anesthesia, the surgeon uses electro(sub)cortical mapping with evoked potentials (MEPs, SSEPs or continuous dynamic mapping) to prevent damage to eloquent areas.
Resection under general anesthesia without mapping
During resection under general anesthesia without mapping, the surgeon does not use any intraoperative stimulation mapping techniques to identify eloquent areas.

Locations

Country Name City State
Belgium University Hospitals Leuven Leuven Vlaams-Brabant
Germany University Hospital Heidelberg Heidelberg
Germany Technical University Munich Munich
Netherlands Erasmus MC Rotterdam Zuid-Holland
Netherlands Medical Center Haaglanden The Hague Zuid-Holland
Switzerland Inselspital Universitätsspital Bern Bern
United States Massachusetts General Hospital Boston Massachusetts
United States University of California, San Francisco San Francisco California

Sponsors (4)

Lead Sponsor Collaborator
Erasmus Medical Center Medical Center Haaglanden, Universitaire Ziekenhuizen Leuven, University of California, San Francisco

Countries where clinical trial is conducted

United States,  Belgium,  Germany,  Netherlands,  Switzerland, 

Outcome

Type Measure Description Time frame Safety issue
Primary Neurological morbidity NIHSS deterioration of 1 point or more as compared to baseline value. Between baseline and 6 weeks/3 months/6 months postoperatively
Primary Extent of resection Resection percentage as assessed by an independent neuroradiologist on MRI contrast images with volumetric analysis Assessed within 72 hours on postoperative MRI scan
Secondary Progression-free survival Progression-free survival (PFS) defined as time from diagnosis to disease progression (occurrence of a new tumour lesion with a volume greater than 0.175 cm³, or an increase in residual tumour volume of more than 25%) or death, whichever comes first. Between surgery and 12 months postoperatively
Secondary Overall survival Overall survival (OS) defined as time from diagnosis to death from any cause. Between surgery and 12 months postoperatively
Secondary Onco-functional outcome 2D coordinate based on extent of resection (or residual tumor volume) on the x-axis and NIHSS score on the y-axis Between baseline and 6 weeks/3 months/6 months postoperatively
Secondary Frequency and severity of Serious Adverse Events (SAEs) Infections, intracerebral bleeding, epilepsy, aphasia, paresis/paralysis in arms or/and legs (this is not an exhaustive list). Between surgery and 6 weeks postoperatively
Secondary Residual tumor volume Postoperative tumor volume in mm3 as assessed by an independent neuroradiologist on MRI contrast images with volumetric analysis Assessed within 72 hours on postoperative MRI scan
Secondary MRC deterioration (for motor gliomas) MRC deterioration of 1 point or more as compared to baseline value. Between baseline and 6 weeks/3 months/6 months postoperatively
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