MIECH: The Minimally Invasive Endoscopic Surgery With the Axonpen System for Spontaneous Intracerebral Hemorrhage
Primary Purpose
Intracerebral Hemorrhage, Cerebral Hemorrhage, Intracranial Hemorrhage
Status
Completed
Phase
Not Applicable
Locations
Taiwan
Study Type
Interventional
Intervention
Axonpen system
Sponsored by
About this trial
This is an interventional device feasibility trial for Intracerebral Hemorrhage focused on measuring Intracerebral Hemorrhage, Cerebral Hemorrhage, Intracranial Hemorrhage, ICH, Stroke, Endoscopic Hematoma Evacuation, Minimally Invasive Surgery, Endoscopic Neurosurgery
Eligibility Criteria
Inclusion Criteria:
Patients who fulfill ALL the inclusion criteria will be enrolled:
- Age 20-80 years, all genders/sexes are inclusive;
- Evidence of a spontaneous basal ganglia ICH on CT scan;
- Patient, or a family member with legally authorized responsibility, has given informed consent;
- GCS of 6-14;
- Volume of hematoma in range of 30-80 ml as measured by the ABC/2 method;
- Can receive surgical treatment within 48 hours after ictus.
Exclusion Criteria:
Patients who fulfill ANY ONE of the exclusion criteria should not be enrolled:
- Previous symptomatic stroke with neurological sequelae (per history or as seen on initial CT scan);
- ICH known or suspected by study investigator to be secondary to aneurysm, vascular malformation, hemorrhagic transformation of ischemic stroke, cerebral venous thrombosis, thrombolytic therapy, tumor, or infection;
- Acute or active infection signs requiring treatment at the time of admission;
- Significant ventricular extension of the hemorrhage; more than 30 mL of intraventricular hemorrhage;
- Refractory elevated ICP after placement of an EVD (external ventricular drain);
- Severe pre-existing physical or mental disability or severe co-morbidity which might interfere with assessment of outcome;
- Minimally invasive neurosurgery could not be commenced within 48 hours of onset. The case shall be excluded when the time of onset cannot be estimated and is judged with controversy by the investigator;
- The hematological effects of any previous anticoagulants are not completely reversed (platelet count < 100 × 10^3/μL; international normalized ratio (INR) > 1.4);
- Hereditary or acquired hemorrhagic diathesis or coagulation factor deficiency;
- Any condition that could impose hazards to the patient with the MIN or affect the participation of the patient in the study. The judgment is left to the discretion of the investigator;
- Major surgery within the preceding 14 days which poses risk in the opinion of the investigator;
- Any history or current evidence suggestive of venous or arterial thrombotic events within the previous 12 months, including clinical, ECG, laboratory, or imaging findings;
- Use of heparin, low-molecular weight heparin, GPIIb/IIIa antagonist, antiplatelet agents, or oral anticoagulation (e.g., warfarin, factor Xa inhibitor, thrombin inhibitor) within the previous 14 days, irrespective of laboratory values;
- Pregnancy, breast-feeding, or positive pregnancy test (either serum or urine) (Woman of child-bearing potential must have a negative pregnancy test prior to the study procedure.);
- Participation in any investigational study in the last 30 days;
- Known terminal illness or planned withdrawal of care or comfort care measures.
Sites / Locations
- Chang Gung Memorial Hospital (Linkou Branch)
Arms of the Study
Arm 1
Arm Type
Experimental
Arm Label
Axonpen
Arm Description
Subjects will receive minimally invasive endoscopic surgery using the Axonpen™ system for early hematoma evacuation (within 48 hours post-ictus).
Outcomes
Primary Outcome Measures
Rate of Mortality
Safety will be assessed by determining mortality within 30 days post-operation for all subjects
Number of Adverse events (AEs), Serious Adverse Events (SAEs), and Unanticipated Device Effects (UDEs)
AEs, SAEs, and UDEs will be observed from the beginning of the surgery until the last follow-up visit (Day 180) for safety monitoring, and their relation to the study device will be analyzed
Secondary Outcome Measures
Hemorrhage volume
Residual hematoma will be measured via 6 & 72 hours post-operation CT. Reduction (%) of hemorrhage volume will be assessed by comparing with pre-operation CT
Glasgow Coma Scale (GCS)
Clinical assessment for level of consciousness and responsiveness before and after surgery (Assessed by the sum of E/V/M scores. E: Eye opening, 1 = None - 4 = Spontaneous. V: Verbal response, 1 = None - 5 = Normal conversation. M: Motor response, 1 = None - 6 = Normal)
modified Rankin Scale (mRS)
Functional outcomes will be measured via mRS at 72 hours and 7 days post-operation, hospital discharge, and 40, 90, 180 days follow-up visits (Scale ranges from 1 to 7, 1 = No symptoms - 7 = Dead)
Glasgow Outcome Scale Extended (GOSE)
Functional outcomes will be measured via GOSE at 72 hours and 7 days post-operation, hospital discharge, and 40, 90, 180 days follow-up visits (Scale ranges from 1 to 8, 1 = Death - 8 = Upper good recovery)
Length of ICU
Duration of stay in the ICU
Length of hospitalization
Duration of stay in the hospital
Full Information
NCT ID
NCT04839770
First Posted
March 31, 2021
Last Updated
March 7, 2023
Sponsor
Clearmind Biomedical Inc.
Collaborators
Chang Gung Memorial Hospital
1. Study Identification
Unique Protocol Identification Number
NCT04839770
Brief Title
MIECH: The Minimally Invasive Endoscopic Surgery With the Axonpen System for Spontaneous Intracerebral Hemorrhage
Official Title
The Minimally Invasive Endoscopic Surgery With the Axonpen System for Spontaneous Intracerebral Hemorrhage (MIECH): An Open-label, Non-randomized, Single-arm Pilot Study
Study Type
Interventional
2. Study Status
Record Verification Date
March 2023
Overall Recruitment Status
Completed
Study Start Date
August 7, 2020 (Actual)
Primary Completion Date
October 31, 2022 (Actual)
Study Completion Date
January 31, 2023 (Actual)
3. Sponsor/Collaborators
Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Clearmind Biomedical Inc.
Collaborators
Chang Gung Memorial Hospital
4. Oversight
Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Product Manufactured in and Exported from the U.S.
No
Data Monitoring Committee
No
5. Study Description
Brief Summary
The primary objective of this trial is to provide preliminary safety data of minimally invasive endoscopic surgery using the Axonpen™ system for spontaneous intracerebral hemorrhage (ICH). The effectiveness of the Axonpen™ system in early hematoma removal and the surgical impact on subject's functional recovery will also be evaluated.
The Axonpen™ system, consisting of a neuroendoscope (Axonpen) and a monitor (Axonmonitor), is cleared by FDA and indicated for the illumination and visualization of intracranial tissue and fluids and the controlled aspiration of tissue and/or fluid during surgery of the ventricular system or cerebrum.
Detailed Description
In the present trial, the FDA-cleared Axonpen™ system was applied on the ICH surgery. The Axonpen™ System is a neuroendoscope combined with the functions of hematoma aspiration and irrigation, aiming to minimize surgical brain injury, optimize surgical procedure, and be available for early hematoma evacuation.
The technique of minimally invasive endoscopic neurosurgery for ICH is still considered in development; however, a retrospective study [Kuo et al.] has shown that early and complete evacuation of ICH may lead to improved outcomes in selected patients, where the neurosurgeons utilized combination of the existing instruments, such as a rod-lens endoscope with irrigation system and a suction coagulator, to enable visualization, aspiration, and irrigation of the hematoma to be worked simultaneously. The technology employed and the results revealed in the previous study provide a proof of concept for the Axonpen™ system, and also imply that the current device could be safe and effective in the management of ICH.
6. Conditions and Keywords
Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Intracerebral Hemorrhage, Cerebral Hemorrhage, Intracranial Hemorrhage, Basal Ganglia Hemorrhage
Keywords
Intracerebral Hemorrhage, Cerebral Hemorrhage, Intracranial Hemorrhage, ICH, Stroke, Endoscopic Hematoma Evacuation, Minimally Invasive Surgery, Endoscopic Neurosurgery
7. Study Design
Primary Purpose
Device Feasibility
Study Phase
Not Applicable
Interventional Study Model
Single Group Assignment
Masking
None (Open Label)
Allocation
N/A
Enrollment
10 (Actual)
8. Arms, Groups, and Interventions
Arm Title
Axonpen
Arm Type
Experimental
Arm Description
Subjects will receive minimally invasive endoscopic surgery using the Axonpen™ system for early hematoma evacuation (within 48 hours post-ictus).
Intervention Type
Device
Intervention Name(s)
Axonpen system
Intervention Description
The Axonpen™ system, containing the Axonpen and the Axonmonitor, has been cleared for the illumination and visualization of intracranial tissue and fluids and the controlled aspiration of tissue and/or fluid during surgery of the ventricular system or cerebrum.
The Axonpen is a neuroendoscope integrated with suction (sourced from hospital vacuum) and irrigation (sourced from third-party saline infusion bag) functions. The Axonmonitor is used for view and storage of the endoscopic image. The Axonpen™ system is intended to optimize the procedure of minimally invasive neurosurgery for early ICH evacuation.
Primary Outcome Measure Information:
Title
Rate of Mortality
Description
Safety will be assessed by determining mortality within 30 days post-operation for all subjects
Time Frame
30 days
Title
Number of Adverse events (AEs), Serious Adverse Events (SAEs), and Unanticipated Device Effects (UDEs)
Description
AEs, SAEs, and UDEs will be observed from the beginning of the surgery until the last follow-up visit (Day 180) for safety monitoring, and their relation to the study device will be analyzed
Time Frame
180 days
Secondary Outcome Measure Information:
Title
Hemorrhage volume
Description
Residual hematoma will be measured via 6 & 72 hours post-operation CT. Reduction (%) of hemorrhage volume will be assessed by comparing with pre-operation CT
Time Frame
6 and 72 hours
Title
Glasgow Coma Scale (GCS)
Description
Clinical assessment for level of consciousness and responsiveness before and after surgery (Assessed by the sum of E/V/M scores. E: Eye opening, 1 = None - 4 = Spontaneous. V: Verbal response, 1 = None - 5 = Normal conversation. M: Motor response, 1 = None - 6 = Normal)
Time Frame
180 days
Title
modified Rankin Scale (mRS)
Description
Functional outcomes will be measured via mRS at 72 hours and 7 days post-operation, hospital discharge, and 40, 90, 180 days follow-up visits (Scale ranges from 1 to 7, 1 = No symptoms - 7 = Dead)
Time Frame
180 days
Title
Glasgow Outcome Scale Extended (GOSE)
Description
Functional outcomes will be measured via GOSE at 72 hours and 7 days post-operation, hospital discharge, and 40, 90, 180 days follow-up visits (Scale ranges from 1 to 8, 1 = Death - 8 = Upper good recovery)
Time Frame
180 days
Title
Length of ICU
Description
Duration of stay in the ICU
Time Frame
Number of days from admission, up to 180 days
Title
Length of hospitalization
Description
Duration of stay in the hospital
Time Frame
Number of days from admission to discharge, up to 180 days
10. Eligibility
Sex
All
Minimum Age & Unit of Time
20 Years
Maximum Age & Unit of Time
80 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria:
Patients who fulfill ALL the inclusion criteria will be enrolled:
Age 20-80 years, all genders/sexes are inclusive;
Evidence of a spontaneous basal ganglia ICH on CT scan;
Patient, or a family member with legally authorized responsibility, has given informed consent;
GCS of 6-14;
Volume of hematoma in range of 30-80 ml as measured by the ABC/2 method;
Can receive surgical treatment within 48 hours after ictus.
Exclusion Criteria:
Patients who fulfill ANY ONE of the exclusion criteria should not be enrolled:
Previous symptomatic stroke with neurological sequelae (per history or as seen on initial CT scan);
ICH known or suspected by study investigator to be secondary to aneurysm, vascular malformation, hemorrhagic transformation of ischemic stroke, cerebral venous thrombosis, thrombolytic therapy, tumor, or infection;
Acute or active infection signs requiring treatment at the time of admission;
Significant ventricular extension of the hemorrhage; more than 30 mL of intraventricular hemorrhage;
Refractory elevated ICP after placement of an EVD (external ventricular drain);
Severe pre-existing physical or mental disability or severe co-morbidity which might interfere with assessment of outcome;
Minimally invasive neurosurgery could not be commenced within 48 hours of onset. The case shall be excluded when the time of onset cannot be estimated and is judged with controversy by the investigator;
The hematological effects of any previous anticoagulants are not completely reversed (platelet count < 100 × 10^3/μL; international normalized ratio (INR) > 1.4);
Hereditary or acquired hemorrhagic diathesis or coagulation factor deficiency;
Any condition that could impose hazards to the patient with the MIN or affect the participation of the patient in the study. The judgment is left to the discretion of the investigator;
Major surgery within the preceding 14 days which poses risk in the opinion of the investigator;
Any history or current evidence suggestive of venous or arterial thrombotic events within the previous 12 months, including clinical, ECG, laboratory, or imaging findings;
Use of heparin, low-molecular weight heparin, GPIIb/IIIa antagonist, antiplatelet agents, or oral anticoagulation (e.g., warfarin, factor Xa inhibitor, thrombin inhibitor) within the previous 14 days, irrespective of laboratory values;
Pregnancy, breast-feeding, or positive pregnancy test (either serum or urine) (Woman of child-bearing potential must have a negative pregnancy test prior to the study procedure.);
Participation in any investigational study in the last 30 days;
Known terminal illness or planned withdrawal of care or comfort care measures.
Facility Information:
Facility Name
Chang Gung Memorial Hospital (Linkou Branch)
City
Taoyuan
ZIP/Postal Code
333423
Country
Taiwan
12. IPD Sharing Statement
Citations:
PubMed Identifier
21456936
Citation
Kuo LT, Chen CM, Li CH, Tsai JC, Chiu HC, Liu LC, Tu YK, Huang AP. Early endoscope-assisted hematoma evacuation in patients with supratentorial intracerebral hemorrhage: case selection, surgical technique, and long-term results. Neurosurg Focus. 2011 Apr;30(4):E9. doi: 10.3171/2011.2.FOCUS10313.
Results Reference
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MIECH: The Minimally Invasive Endoscopic Surgery With the Axonpen System for Spontaneous Intracerebral Hemorrhage
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