- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT01801306
A New Minimal-invasive Brain Tissue Probe Applying Near Infrared Spectroscopy
A New Multi-parameter Monitoring System Applying Near Infrared Spectroscopy and Indocyanine Green to Detect Cerebrovascular Events in Patients With Subarachnoid Hemorrhage
To assess the feasibility of a new brain tissue probe for multi-parameter neuromonitoring (NeMo Probe) and the accuracy of measurement values.
To demonstrate the ability of the NeMo probe to detect changes in cerebral hemodynamics and oxygenation during cerebrovascular events monitored with established methods including brain tissue oxygenation tension and microdialysis
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Heidelberg, Germany, 69221
- Department of Neurosurgery, University Hospital Heidelberg
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Males and females aged 18-75 years (inclusive)
- Patients with high-grade subarachnoid hemorrhage (WFNS 4-5)
- Decreased level of consciousness with the need for intracranial pressure monitoring
- Successful exclusion of the ruptured aneurysm with clipping or coiling
- Women of childbearing potential must have a negative serum pregnancy test
- Written informed consent obtained by a legal representative
Exclusion Criteria:
- Significant kidney and/or liver disease
- Any severe unstable concomitant condition or disease (e.g. cancer, coronary disease) or chronic condition (e.g. psychiatric disorder, chronic obstructive pulmonary disease Grade II, chronic heart failure > NYHA II)
- Cerebrospinal fluid infection or signs of meningoencephalitis
- Acute respiratory distress syndrome (ARDS), pulmonary edema
- Preexisting coagulation disorder
- Patients with current alcohol or drug abusus or dependence
- Patients with a history of hypersensitivity against indocyanine green or sodium iodine
- Patients with thyroid disease causing hyperthyroidism
- Breast-feeding women
- Patients committed to an institution based on official directive or court order
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Diagnostic
- Allocation: N/A
- Interventional Model: Single Group Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
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Other: NeMoProbe
The NeMo System is used for intracranial pressure (ICP) and brain temperature monitoring, as well as the determination of the brain tissue oxygenation saturation (SbtO2) and cerebral blood flow.
The sensors for NIRS are implemented into a conventional brain tissue probe for ICP monitoring (NeMo Probe).
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A new minimal-invasive brain tissue probe applying near infrared spectroscopy
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
To assess the feasibility of the neuromonitoring system and accuracy of the measurement values
Time Frame: Day 90 after Removal of Medical Device
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Feasibility: User acceptance rate in comparison to conventional probes for ICP-monitoring. The following parameters will be analysed:
Safety endpoints: -Adverse events profile (including adverse device effects): Incidence of complications (infections, brain tissue damage, hemorrhage) in comparison to historical series (conventional probes for ICP-monitoring): |
Day 90 after Removal of Medical Device
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Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
To demonstrate the ability of the neuromonitoring system to detect cerebrovascular events in patients with subarachnoid hemorrhage
Time Frame: Day 90 after Removal of Medical Device
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Results concerning the response to cortical spreading depolarization (CSD) monitored with electrocorticography (ECoG): Increase of brain tissue oxygenation (SbtO2), total hemoglobin (dHbtotal, aHbtotal), CBV, CBV Hb and CBF >20% Decrease of SbtO2, dHbtotal, aHbtotal, CBV, CBV Hb and CBF >20% Changes of SbtO2, dHbtotal, aHbtotal, CBV, CBV Hb and CBF <20% Results concerning the sensitivity and specificity to detect delayed cerebral ischemia (DCI) monitored with ptiO2 and MD: Correlation of CBF values <15 ml/100g/min with defined criteria for DCI (ptiO2 <15 mmHg, Gluc brain<0.7 mmol/l, Lactate-Pyruvate-Ratio >40), number of false negative and false positive events, Receiver Operating Characteristic (ROC) curve. |
Day 90 after Removal of Medical Device
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Martin Seule, MD, Department of Neurosurgery, University Hospital Heidelberg
Study record dates
Study Major Dates
Study Start
Primary Completion (Actual)
Study Completion (Actual)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Estimate)
Study Record Updates
Last Update Posted (Estimate)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- CIV-12-04-006261
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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