Clinical trial · Interventional
Electrocorticography in Mapping Functional Brain Areas During Surgery in Patients With Brain Tumors
Pilot Investigation of Using Electrocorticogram (ECoG) in Predicting Eloquent Cortex and Post-Operative Functional Outcomes in Patients With Brain Tumors
- Source
- ClinicalTrials.gov
- Retrieved
- Sep 8, 2026
- Layer
- normalized (units and labels harmonized; values unchanged)
- Run
- ING-CLINICALTRIALS-20260908-000001
Summary
Brief summary (as posted)
This pilot clinical trial studies how well electrocorticography works in mapping functional brain areas during surgery in patients with brain tumors. Using a larger than the standard mapping grid currently used during brain tumor surgery or a high-definition grid for electrocorticogram brain mapping may help doctors to better identify which areas of the brain are active during specific limb movement and speech during surgery in patients with brain tumors.
Conditions
Conditions (3)
Free-text conditions as registered, with the CancerIndex entity they were reconciled to and the match type.
| Condition (as posted) | Mapped entity | Match | Confidence |
|---|---|---|---|
| Brain Neoplasm | Brain Neoplasm | ONTOLOGY_EXACT | 0.90 |
| Metastatic Malignant Neoplasm in the Brain | — | UNRESOLVED | — |
| Recurrent Brain Neoplasm | Brain Neoplasm | CURATED_BROADER | 0.78 |
Interventions
Interventions (2)
| Intervention | Type | Mapped drug | Match |
|---|---|---|---|
| Direct Electrocortical Stimulation | Procedure | — | UNRESOLVED |
| Electrocorticography | Other | — | UNRESOLVED |
Design
Arms and outcomes
Arms (1)
- type
- EXPERIMENTAL
- label
- Diagnostic (electrocorticography)
- description
- Patients undergo tumor resection. During surgery, patients also undergo electrocorticography with either the CorTec high resolution hybrid grid, the PMT high-resolution grid, or the Ad-Tech grid followed by direct electrocortical stimulation.
- interventionNames
- Procedure: Direct Electrocortical Stimulation
- Other: Electrocorticography
Primary outcomes (1)
- measure
- Electrocorticogram (ECoG)
- timeFrame
- Up to 6 months (± 4 weeks)
- description
- Will be assessed by cortical electrical activity based on individual hand muscle function. ECoG will be compared to direct electrical stimulation (DES), navigated transcranial magnetic stimulation (nTMS), and functional magnetic resonance imaging (fMRI). The data obtained using ECoG will be correlated with the fMRI and TMS data acquired preoperatively and intraoperative DES. The categorical variables would be preoperative Karnofsky performance status and functional status, tumor location, fMRI, TMS, ECoG, and DES data points. Other variables involved in the analysis would be extent of resection and neurological and language/speech outcome. The Chi-square or Fisher's exact tests will be used to explore associations between categorical variables. Additional analysis may be performed.
Eligibility
Eligibility (as posted)
- Sex
- All
- Minimum age
- 18 Years
Show eligibility criteria text
Inclusion Criteria: * Patients undergoing a tumor resection at the University of Texas M. D. Anderson Cancer Center for a newly diagnosed as well as recurrent primary or metastatic brain tumor located in or adjacent to motor and/or speech brain areas * Patients \>= 18 years of age * Signed informed consent Exclusion Criteria: * Patients with significant neurological motor deficits of the upper extremities, and/or speech deficits, which would preclude them from performing the while awake intra-operative tasks at the discretion of the principal investigator (PI) * Patients who have impaired vision and/or hearing and whose performance could affect the study will be excluded at the discretion of the PI
References
Publications (0)
Data not yet available