Clotild® Smart Guidewire System (CSGS) Evaluation in EndovascUlar Thrombectomy Procedure (CLOTOUT)

Sensome

Status: Completed

Conditions: Stroke

Treatments: Device: Clotild®

Study type: Interventional

Funder types: Industry

Identifiers

NCT04993079

SEN_CLOTILD_FIH_1

Details and patient eligibility

About

The purpose of this First-in-Human study is to evaluate the safety of using the Clotild® system to guide the endovascular thrombectomy (EVT) device to the clot location during EVT for the treatment of an acute ischemic stroke eligible to EVT, whatever the EVT device chosen. A secondary purpose is to assess the clinical performance, defined as the feasibility of measuring clot electrophysiological parameters in vivo during EVT procedures.

Full description

Clotild® is a neurovascular guidewire equipped with the Sensome proprietary impedance sensor. The latter allows the measurement of the electrophysiological characteristics of the surrounding tissues. Clotild® could categorize the thrombus occluding the cerebral blood vessel, and support the neurointerventionist during mechanical thrombectomy for the treatment of ischemic stroke. The aim of the study is to evaluate the safety and the performance of the device. The electrophysiological measurements will be used to update Clotild®'s database and thus improve the prediction accuracy of the model in providing physicians with insights for mechanical thrombectomy.

Enrollment: 41 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Clinical signs and symptoms consistent with the diagnosis of an acute ischemic stroke eligible for EVT
2. M1 and/or MCA bifurcation arterial occlusion on Computed tomography angiography (CTA) or MRA (Magnetic resonance angiography) of an intracranial vessel amenable to EVT
3. Informed Consent by subject, subject's Legally Authorized Representative (LAR) or anyone approved by the Ethics Committee (EC) and/or regulatory agencies to provide consent on behalf of the subject.

Exclusion criteria

1. Patient having an intracranial occlusion other than M1 and/or MCA bifurcation, especially tandem occlusion and ICA (internal carotid artery) occlusion.
2. Current participation in another investigational device or drug study that has not completed the primary endpoint or that clinically interferes with the current study endpoints
3. Candidates not eligible for EVT based on neurointerventionist and/or neurologist investigators' opinion
4. Pregnancy or lactating subjects

Trial design

Primary purpose: Other

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

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41 participants in 1 patient group

Clotild®

Experimental group

Description:

Subjects presenting an acute ischemic stroke due to M1 or middle cerebral artery (MCA) bifurcation occlusion, eligible for Endovascular Thrombectomy (EVT) based on neuro-interventionist and/or neurologist investigators' opinion will be eligible. Twenty (20) patients will be initially enrolled. Up to 42 patients will be enrolled following an analysis of the data of the first 20 enrolled patients by a data safety monitoring board (DSMB) and its' recommendation to proceed with the study. Clots will be retrieved and analysed in a group of participants for which Clotild® is used as neurovascular guidewire.

Treatment:

Device: Clotild®