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Effect of DIRECT Transfer to ANGIOsuite on Functional Outcome in Severe Acute Stroke (DIRECTANGIO)

Primary Purpose

Acute Ischemic Stroke

Status
Recruiting
Phase
Not Applicable
Locations
France
Study Type
Interventional
Intervention
direct angio-suite admission
standard management
Sponsored by
Central Hospital, Nancy, France
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Acute Ischemic Stroke focused on measuring large-vessel occlusion, reperfusion therapy

Eligibility Criteria

18 Years - 85 Years (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  • Aged from 18 to 85 years,
  • Rapid neurological examination by the neurologist of the participating centre before randomization,
  • Suffered from acute severe neurological deficit at hospital admission confirmed by neurologist defined as:

    • Unilateral motor deficit with a total score ≥ 5

      1. Facial palsy: item 4 of NIHSS (score 0 to 2)
      2. Arm: item 5 of NIHSS (score 0 to 4)
      3. Leg: item 6 of NIHSS (score 0 to 2) AND
    • Cortical symptom with a total score ≥ 1

      1. Language: item 9 of NIHSS (score 0 to 3)
      2. Extinction: item 11 of NIHSS (score 0 to 2)
  • Patients who admitted to hospital within 5 hours after symptom onset
  • Known onset time of symptom
  • Only mothership admissions
  • Fully autonomous patient (pre-stroke mRS ≤2)
  • Availability of the angio-suite and endovascular treatment team at the randomization
  • Person affiliated to or beneficiary of a social security plan

Exclusion Criteria:

  • Severe allergy to iodinated contrast agents,
  • Ongoing pregnancy,
  • Breastfeeding,
  • Consent refusal or opposition of the relatives,
  • Individuals under mandatory legal guardianship or unable to consent and whose relatives oppose the research,
  • Any conditions that could hamper the 3-month outcome recording

Sites / Locations

  • Centre Hospitalier Régional UniversitaireRecruiting

Arms of the Study

Arm 1

Arm 2

Arm Type

Experimental

Active Comparator

Arm Label

Direct angio-suite admission

Standard management

Arm Description

Upon arrival in angio-suite and after neurological examination with scoring NIHSS and pre stroke mRS, and performing the blood sample, patient undergoes rotational CBCT in order to exclude intracerebral hemorrhage and cerebral angiography to confirm proximal arterial occlusion. Mechanical thrombectomy is then performed as well as intravenous thrombolysis in the absence of contraindications.

Arrival is in the MRI/CT-scan room or in the emergency department. Directly after neurological examination and blood sample, patient undergoes imaging and then bridging therapy, mechanical thrombectomy or intravenous thrombolysis alone when indicated.

Outcomes

Primary Outcome Measures

3-month functional independence
modified Rankin Scale assessing functional outcome from complete recovery scored 0 to death scored 6 with dichotomized outcome: mRS score 0-2 (at least independent for all activities of daily living) versus 3-6 (poor outcome) interpretation of mRS : lower is better

Secondary Outcome Measures

Confirmed large-vessel occlusion in the intervention group
proportion of arterial occlusive lesion on first angiogram
the quality of final perfusion
the modified Treatment In Cerebral Ischemia (mTICI) score, a 5-point scale staged from 0 (no perfusion), 1 ( antegrade reperfusion past the initial occlusion, but limited distal branch filling with little or slow distal reperfusion), 2a (antegrade reperfusion of less than half of the occluded target artery previously ischemic territory), 2b (antegrade reperfusion of more than half of the previously occluded target artery ischemic territory), 2c (nearly complete reperfusion), to 3 (complete antegrade reperfusion of the previously occluded target artery ischemic territory, with absence of visualized occlusion in all distal branches) interpretation of mTICI score: higher is better
the 24-hour clinical improvement
National Institute of Health Stroke Scale (NIHSS) neurological impairment and its seriousness are scale from 0 (no impairment) to 42 (most serious neurological deficit) interpretation of the NIHSS : lower is better
the blinded 12-month functional outcome
modified Rankin Scale assessing functional outcome from complete recovery scored 0 to death scored 6 interpretation of mRS : lower is better

Full Information

First Posted
May 29, 2019
Last Updated
September 7, 2023
Sponsor
Central Hospital, Nancy, France
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1. Study Identification

Unique Protocol Identification Number
NCT03969511
Brief Title
Effect of DIRECT Transfer to ANGIOsuite on Functional Outcome in Severe Acute Stroke
Acronym
DIRECTANGIO
Official Title
Effect of DIRECT Transfer to ANGIOsuite on Functional Outcome in Patient With Severe Acute Stroke Treated With Thrombectomy: the Randomized DIRECT ANGIO Trial
Study Type
Interventional

2. Study Status

Record Verification Date
September 2023
Overall Recruitment Status
Recruiting
Study Start Date
July 9, 2020 (Actual)
Primary Completion Date
October 24, 2024 (Anticipated)
Study Completion Date
August 9, 2025 (Anticipated)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Principal Investigator
Name of the Sponsor
Central Hospital, Nancy, France

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
Rationale: Acute large-vessel strokes, requiring endovascular treatment, are currently being managed through radiology department before being transferred to the angiography room. However, patients with severe neurological deficit have demonstrated even greater benefits from recanalization as the symptom onset-to-reperfusion time is shortened to less than 1 hour. Recent pilot study have shown a benefit in reducing management delays with direct admission to the angiography room and subsequently in increasing functional independence at 3 months. Therefore, the aim is to demonstrate the superiority of the direct angio-suite transfer versus the standard management, in terms of 3-month functional independence, in patients strongly suspected of having a severe ischemic stroke related to acute large-vessel occlusion of the anterior circulation, and treated by mechanical thrombectomy ± intravenous thrombolysis. Methods and Design: The DIRECT ANGIO trial is a (PROBE) randomized, multicenter, controlled, open-label, blinded endpoint clinical trial. Study Outcomes: The primary outcome is the rate of patients with 3-month functional independence defined as modified Rankin Scale score ≤2 at 3 months.
Detailed Description
Methods: Design: The DIRECT ANGIO trial is a French academic, investigator-initiated, multicenter, controlled, open-label, blinded endpoint, two-arm randomized, clinical trial to compare the effectiveness and safety of direct angio-suite admission versus the standard radiological or emergency departement-based management in ≤85 year-old patients with suspected proximal arterial occlusion lesion. Patient population: Patients will be recruited in an emergency situation by neurologists and/or neuroradiologists after a rapid neurological examination by the neurologist raising the suspicion of ischemic stroke by proximal occlusion on the patient's arrival and before any imaging. Inclusion and exclusion criteria: All consecutive patients with the following features are enrolled, under the condition of immediate availability of the angio-suite and the team (Inclusion and exclusion criteria are detailed below). According to the French laws, the patient's written consent will be sought if able to receive information and express consent, otherwise written consent from relatives present. In case of inability to consent and absence of the relatives, inclusion in an emergency situation by the neurologist or neuroradiologist, then informed consent to follow will be obtained. If the patient dies before the collection of consent(s) for continuation, the non-objection to the use of his data will be sought from the relatives. Randomization: After inclusion, patients are randomized in the two treatment arms using a web-based centralized system with a 1:1 ratio to either direct angio-suite management or standard management, and stratified on the time from symptom onset to hospital arrival (<2.5 hours or ≥2.5 hours). To deal with open-label, 3-month functional outcome is gathered with blinding to randomization arm. Treatment and Intervention Intervention Arm: Upon arrival in angio-suite and after neurological examination with scoring National Institutes of Health Stroke Scale (NIHSS) and pre stroke modified Rankin Scale (mRS), and performing blood sampling, electrocardiogram and weight estimation, patient undergoes rotational Cone Beam CT (CBCT) in order to exclude intracerebral hemorrhage. A cerebral angiography was immediately performed in order to confirm proximal arterial occlusion and mechanical thrombectomy is then performed as well as intravenous thrombolysis in the absence of contraindications. If no proximal or distal intracranial arterial occlusion was visualized, the patient will be redirected to the standard management as in the control arm. They will thus benefit from cerebral MRI/CT-scan and the treatment strategy will then be determined according to the results of imaging. Control Arm: Arrival is in the MRI/CT-scan room or in the emergency department. Directly after neurological examination and blood sample, patient undergoes imaging. If required, patient undergoes intravenous thrombolysis directly in the MRI/CT-scan room or after transfer in the stroke unit or in the emergency service, according to the practices of the centres involved. In a second step, the patient is admitted in the angio-suite if mechanical thrombectomy indicated. The transfer to angio-suite will be carried out as soon as possible. All patients data will be recorded in an electronic case report form (e-CRF) and imagings will be recorded in a centralized database, located in the Clinical Investigation Centre-Technological Innovation of Nancy, in order to a centralized radiological reading by the Imaging Core Lab. Patient population: Patients will be recruited in an emergency situation by neurologists and/or neuroradiologists after a rapid neurological examination by the neurologist raising the suspicion of ischemic stroke by proximal occlusion on the patient's arrival and before any imaging examination. Clinical assessment Clinical assessment is performed early, upon the patient's arrival at the participating centre with a rapid neurological examination by the neurologist to validate the strong suspicion of ischemic stroke large vessel occlusion and confirms that the patients meet the inclusion criteria. Clinical assessment includes then demographics and collection of routine clinical information (comorbidities, symptoms, vital constants), allergy contraindications. Neurological deficit will be assessed using the NIHSS score and pre-stroke disability with mRS by a neurologist. Care workflow time will record all the delays between each strategy time (onset-to-admission in angio-suite/radiology department time; onset-to-intravenous thrombolysis, onset-to-groin puncture, onset-to-reperfusion times). Imaging protocol Baseline imaging characteristics in the standard management group is either magnetic resonance imaging with 3D-Time of Flight (TOF) sequence or CT-scan with intracranial angiography and CT-perfusion sequence. In the angio-suite group, rotational CBCT and CBCT-angiography will be performed. The imaging protocol in angio-suite will be harmonized between the centres and the quality of the images evaluated before the study is implemented. Furthermore, if mechanical thrombectomy is indicated, angiographic perfusion will be assessed with the modified Treatment In Cerebral Ischemia (mTICI) score on initial and final angiograms and collateral status with the Grading Collateral System (GCS) score on initial angiogram, in the two groups. At 3 months (±15 days) and 12 months (±1 month), the mRS score will be centralized gathered by a trained clinical research nurse blinded to randomization group via a telephone conversation. The 12-month outcome assessment comprises medical ongoing treatment, vital status and EQ-5D-5L questionnaire. Primary Outcomes The primary outcome is the rate of patients with 3-month functional independence defined as modified Rankin Scale score ≤2 at 3 months (±15 days), irrespective of the pathology that actually led to the hospitalisation and of the treatment actually received. It will be centralized gathered via telephone conversations with patients and their relatives by a certified clinical research nurse with blinding to the randomized group. Secondary Outcomes Secondary feasibility outcomes will include the rate and the site of confirmed large-vessel stroke, the rate of proximal intracranial occlusion of the anterior circulation, the hospital admission-to-imaging time / the admission-to-thrombolysis time / the admission-to-puncture time / the admission-to-reperfusion time, the imaging-to-puncture time / the imaging-to-reperfusion time, the puncture-to-reperfusion time. Secondary Effectiveness outcomes will include : the quality of final perfusion according to the mTICI score: percentage of patients with reperfusion defined by mTICI 0, 1, 2a, 2b, 2c, and 3 (modified Treatment In Cerebral Infarction) at the end of thrombectomy, the rate of complications per procedure: embolus in new territory, arterial perforation, arterial dissection the 24-hour (±6 hours) clinical improvement staged with the NIHSS score, the NIHSS at 5-7 days (or at hospital discharge if within 5 days) and the NIHSS at 3 months, the blinded 12-month (±1 month) functional outcome valued by the mRS score independently, centrally and blindly evaluated by a qualified and certified clinical research nurse, the rate of cerebral hemorrhage at admission, the rate of patients without proximal intracranial arterial occlusion, the rate of conversion to the standard management Secondary safety outcomes will comprise: the rate of 24-hour (±6 hours) asymptomatic and symptomatic intracerebral haemorrhagic transformation as defined by the Safe Implementation of Thrombolysis in Stroke-Monitoring Study (SITS-MOST and ECASS III), the rate of overall mortality (mRS score 6) at 3-month (±15 days) and at 12 months (±1 month), the rate of patients with haemorrhagic stroke, the inhospital rate of neurosurgical procedure (malignant stroke or large intracerebral hemorrhage with mass effect). the rate of stroke (ischemic or hemorrhagic), of stroke unrelated to large-vessel occlusion, the rate of patients treated by intravenous thrombolysis alone and who required additional imaging (MRI or CT-scan), the rate of stroke mimics (tumour, epilepsy). Medico-economic analyses will assess the avoided health care costs in an health insurance perspective and provide a cost-utility evaluation using the Health-Related Quality of Life Questionnaire (EQ-5D-5L) at 12-month (±1 month) from inclusion. Health costs will be collected from a national database (the National Institute of Health Data) using a matching method. Data Monitoring Body: To ensure that appropriate ethical consideration is given to the welfare of the patients enrolled in the study, a DSMB was formed. The members of the DSMB are not participants of the DIRECT ANGIO consortium and not involved in the clinical trial. The DSMB is composed by one neuroradiologist, one pharmacovigilance specialist and one methodologist, who are not participating in the study and are not affiliated with the sponsor. In addition, one interim analysis is planned once 50% of patients have been included, for the study to be stopped early owing either to compelling evidence of efficacy (using a pre-specified Haybittle-Peto efficacy boundary with an alpha level of 0.001) or of futility. Sample Size Estimates: The type I error is specified at 0.05 with a power of 80%. Assuming 30% of patients randomized in the control arm achieve 3-month mRS score ≤2 and an absolute difference of 20% between the two arms, we will need a sample size of 93 patients per group for a two-sided test. To deal with 10% drop-out, we will include a total of 208 patients. Statistical Analyses: Statistical analysis is discribed in our publication doi: 10.1136/bmjopen-2020-040522. The study protocol was approved by the National Commission for Informatics and Liberties (CNIL), the Comité de Protection des Personnes (CPP).

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Acute Ischemic Stroke
Keywords
large-vessel occlusion, reperfusion therapy

7. Study Design

Primary Purpose
Treatment
Study Phase
Not Applicable
Interventional Study Model
Parallel Assignment
Masking
Outcomes Assessor
Allocation
Randomized
Enrollment
208 (Anticipated)

8. Arms, Groups, and Interventions

Arm Title
Direct angio-suite admission
Arm Type
Experimental
Arm Description
Upon arrival in angio-suite and after neurological examination with scoring NIHSS and pre stroke mRS, and performing the blood sample, patient undergoes rotational CBCT in order to exclude intracerebral hemorrhage and cerebral angiography to confirm proximal arterial occlusion. Mechanical thrombectomy is then performed as well as intravenous thrombolysis in the absence of contraindications.
Arm Title
Standard management
Arm Type
Active Comparator
Arm Description
Arrival is in the MRI/CT-scan room or in the emergency department. Directly after neurological examination and blood sample, patient undergoes imaging and then bridging therapy, mechanical thrombectomy or intravenous thrombolysis alone when indicated.
Intervention Type
Procedure
Intervention Name(s)
direct angio-suite admission
Intervention Description
Upon arrival in angio-suite and after neurological examination with scoring NIHSS and mRS, and performing the blood sample, patient undergoes rotational CBCT in order to confirm ischemic stroke. Mechanical thrombectomy is the performed as well as intravenous thrombolysis when contraindications are excluded.
Intervention Type
Procedure
Intervention Name(s)
standard management
Intervention Description
Arrival is in the MRI/CT-scan room or in the emergency department. Directly after neurological examination and blood sample, patient undergoes imaging and then bridging therapy when indicated.
Primary Outcome Measure Information:
Title
3-month functional independence
Description
modified Rankin Scale assessing functional outcome from complete recovery scored 0 to death scored 6 with dichotomized outcome: mRS score 0-2 (at least independent for all activities of daily living) versus 3-6 (poor outcome) interpretation of mRS : lower is better
Time Frame
3 months (±15 days)
Secondary Outcome Measure Information:
Title
Confirmed large-vessel occlusion in the intervention group
Description
proportion of arterial occlusive lesion on first angiogram
Time Frame
per-procedural time
Title
the quality of final perfusion
Description
the modified Treatment In Cerebral Ischemia (mTICI) score, a 5-point scale staged from 0 (no perfusion), 1 ( antegrade reperfusion past the initial occlusion, but limited distal branch filling with little or slow distal reperfusion), 2a (antegrade reperfusion of less than half of the occluded target artery previously ischemic territory), 2b (antegrade reperfusion of more than half of the previously occluded target artery ischemic territory), 2c (nearly complete reperfusion), to 3 (complete antegrade reperfusion of the previously occluded target artery ischemic territory, with absence of visualized occlusion in all distal branches) interpretation of mTICI score: higher is better
Time Frame
at end of the endovascular procedure
Title
the 24-hour clinical improvement
Description
National Institute of Health Stroke Scale (NIHSS) neurological impairment and its seriousness are scale from 0 (no impairment) to 42 (most serious neurological deficit) interpretation of the NIHSS : lower is better
Time Frame
at 24 hours ((±6 hours)
Title
the blinded 12-month functional outcome
Description
modified Rankin Scale assessing functional outcome from complete recovery scored 0 to death scored 6 interpretation of mRS : lower is better
Time Frame
at 12 months (±1 month)

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Maximum Age & Unit of Time
85 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Aged from 18 to 85 years, Rapid neurological examination by the neurologist of the participating centre before randomization, Suffered from acute severe neurological deficit at hospital admission confirmed by neurologist defined as: Unilateral motor deficit with a total score ≥ 5 Facial palsy: item 4 of NIHSS (score 0 to 2) Arm: item 5 of NIHSS (score 0 to 4) Leg: item 6 of NIHSS (score 0 to 2) AND Cortical symptom with a total score ≥ 1 Language: item 9 of NIHSS (score 0 to 3) Extinction: item 11 of NIHSS (score 0 to 2) Patients who admitted to hospital within 5 hours after symptom onset Known onset time of symptom Only mothership admissions Fully autonomous patient (pre-stroke mRS ≤2) Availability of the angio-suite and endovascular treatment team at the randomization Person affiliated to or beneficiary of a social security plan Exclusion Criteria: Severe allergy to iodinated contrast agents, Ongoing pregnancy, Breastfeeding, Consent refusal or opposition of the relatives, Individuals under mandatory legal guardianship or unable to consent and whose relatives oppose the research, Any conditions that could hamper the 3-month outcome recording
Central Contact Person:
First Name & Middle Initial & Last Name or Official Title & Degree
Benjamin Gory, MD, PhD
Phone
+33 3 83 85 15 01
Ext
+33
Email
b.gory@chru-nancy.fr
Facility Information:
Facility Name
Centre Hospitalier Régional Universitaire
City
Nancy
ZIP/Postal Code
54035
Country
France
Individual Site Status
Recruiting
Facility Contact:
First Name & Middle Initial & Last Name & Degree
Benjamin Gory, MD, PhD
Phone
+33 3 83 85 95 27
Ext
+33
Email
b.gory@chru-nancy.fr
First Name & Middle Initial & Last Name & Degree
Aboubaker Cherifi, coordinator
Phone
+33 3 83 15 70 84
Ext
+33
Email
a.cherifi@chru-nancy.fr

12. IPD Sharing Statement

Plan to Share IPD
No
Citations:
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28446535
Citation
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URL
http://doi.org/10.1016/S1878-6480(16)30330-5
Description
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Effect of DIRECT Transfer to ANGIOsuite on Functional Outcome in Severe Acute Stroke

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