NCT04099615

Brief Summary

Endovascular treatment in patients with acute ischemic stroke due to large vessel occlusion does not always lead to good clinical and functional outcome, despite achieving complete arterial recanalization. The rate of significant functional disability or death after three months of an acute ischemic stroke still ranges from 40% to 67%. There is experimental and clinical evidence that somatosensory evoked potentials (SEPs) are good indicators of cerebral blood flow. The primary objective of this study is to determine the sensitivity and specificity of N20 response of SEPs prior to mechanical thrombectomy (MT) as a predictor of functional independence at 90 days after endovascular treatment. Secondly, the investigators will study whether SEPs may be neurophysiological markers of brain tissue in ischemic penumbra and optimal collateral circulation. Bilateral median nerve SEPs will be recorded before and continuously during MT in patients with acute ischemic stroke and anterior large vessel occlusion. N20 response ipsilateral to the cerebral hemisphere affected will be measured (qualitatively and quantitatively). The adjusted predictive value of the N20 biomarker on functional independence after MT will be analyzed by binary logistic regression and its predictive value on the full range of disability by ordinal logistic regression. The investigators will construct different regression models with other clinical predictors available at the prehospital setting and with those determined after hospital admission to determine the independent predictive power of the N20 response for a potential treatment decision-making. Finally, the investigators will study whether SEP can be neurophysiological markers ischemic penumbra tissue and optimal collateral circulation through its correlation with multimodal neuroimaging techniques. SEPs recording is non-invasive technique that can be performed at the bedside of the patient. The development of a portable device which could allow SEPs recording by sanitary staff (pre- and intrahospitally) would provide early data about N20 value, speeding up streamline decision making.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
228

participants targeted

Target at P75+ for all trials

Timeline
Completed

Started Jan 2018

Typical duration for all trials

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

January 1, 2018

Completed
1.6 years until next milestone

First Submitted

Initial submission to the registry

August 17, 2019

Completed
1 month until next milestone

First Posted

Study publicly available on registry

September 23, 2019

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 30, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 30, 2020

Completed
Last Updated

November 8, 2023

Status Verified

November 1, 2023

Enrollment Period

2.3 years

First QC Date

August 17, 2019

Last Update Submit

November 7, 2023

Conditions

Keywords

Evoked Potentials, SomatosensoryAcute Cerebrovascular AccidentEndovascular Procedures

Outcome Measures

Primary Outcomes (1)

  • Functional independence at 7 days or discharge

    The primary outcome is the functional independence at 7 days or discharge, defined by the modified Rankin scale score 0- 2. This early and more feasible outcome has a very high correlation with functional dependence at 90 days (Davalos A et al. Lancet Neurol 2017). Local certified assessors who are unaware of the SEPs monitoring findings evaluate the primary outcome variable in each patient by means of a structured interview.

    Baseline to 7 days or the day of discharge from hospital if it happens before the 7th day

Secondary Outcomes (8)

  • Functional independence at 90 days from the stroke

    Baseline to 90 days

  • Early dramatic response to treatment

    Baseline to 24 hours

  • Neurologic improvement

    Baseline to 24 hours

  • Clinical status

    Baseline to 7 days or the day of discharge from hospital if it happens before the 7th day

  • Infarct volume at 24 hours

    Baseline to 24 hours

  • +3 more secondary outcomes

Study Arms (1)

Endovascular urgent stroke treatment group

Patients between 18 and 85 years old who have and acute cerebral stroke due to a demonstrated occlusion in the anterior circulation (M1 or M2 segment of middle cerebral artery with or without ipsilateral internal carotid artery (ICA), that undergo endovascular acute therapy fulfilling all inclusion criteria and with non exclusion criteria for that treatment. We also exclude patient with well-documented history of neuromuscular disorders, stroke or central nervous system tumors that could interfere in the SEPs assessment.

Procedure: Somatosensory Evoked Potentials

Interventions

We stimulate both median nerves at wrist by means of surface adhesive electrodes. We apply square wave electrical pulses of 0.2 ms duration at a frequency of 5.7Hz. SEPs are recorded in a referential fashion from the C3' and C4' positions and from a reference electrode at Fpz or Cz' electrodes(international 10-20 system) with needle electrodes. The target signal is the presence of N20 response ipsilateral to the stroke site and, if present, measure amplitude and latency comparing with the contralateral if present. SEPs are registered during the whole procedure.

Also known as: SEP
Endovascular urgent stroke treatment group

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

Patients from our influence area (Barcelones-Nord-Maresme) ,other parts of Catalonia or people in this area at the moment of the acute stroke, arriving to our hospital because of an acute stroke of the anterior brain circulation, fulfilling criteria of endovascular urgent therapy

You may qualify if:

  • Acute stroke with a demonstrated occlusion in the anterior circulation (M1 or M2 segment of middle cerebral artery with or without ipsilateral internal carotid artery (ICA)significant stenosis or occlusion diagnosed by CT angiography (CTA) or angio-MRI) undergoing urgent thrombectomy procedure.
  • Prestroke functional independence of 2 or less on the modified Rankin scale (ranging from 0 \[no symptoms\] to 6 \[death\]),
  • Baseline score of at least 6 points on the National Institutes of Health Stroke Scale (NIHSS), which ranges from 0 to 42, with higher values indicating more severe deficit.

You may not qualify if:

  • Evidence by imaging of a large ischemic core, as indicated by an Alberta Stroke Program Early Computed Tomography Score (ASPECTS) of less than 5 on computed tomography (CT) without the use of contrast material or a score of less than 4 on diffusion-weighted magnetic resonance imaging (MRI) (ASPECTS values range from 0 to 10, with higher values indicating less infarct burden). These cutoff values of the ischemic core have been selected in agreement with the treatment effect showed in the HERMES trial meta-analysis collaboration (Presented at the International Stroke Conference, Houston, 2017).
  • Well-documented history of neuromuscular disorders, stroke or central nervous system tumors that could interfere in the SEPs assessment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Hospital Universitari Germans Trias i Pujol

Badalona, Catalonia, 08916, Spain

Location

Related Publications (5)

  • Jovin TG, Chamorro A, Cobo E, de Miquel MA, Molina CA, Rovira A, San Roman L, Serena J, Abilleira S, Ribo M, Millan M, Urra X, Cardona P, Lopez-Cancio E, Tomasello A, Castano C, Blasco J, Aja L, Dorado L, Quesada H, Rubiera M, Hernandez-Perez M, Goyal M, Demchuk AM, von Kummer R, Gallofre M, Davalos A; REVASCAT Trial Investigators. Thrombectomy within 8 hours after symptom onset in ischemic stroke. N Engl J Med. 2015 Jun 11;372(24):2296-306. doi: 10.1056/NEJMoa1503780. Epub 2015 Apr 17.

    PMID: 25882510BACKGROUND
  • Saver JL, Goyal M, van der Lugt A, Menon BK, Majoie CB, Dippel DW, Campbell BC, Nogueira RG, Demchuk AM, Tomasello A, Cardona P, Devlin TG, Frei DF, du Mesnil de Rochemont R, Berkhemer OA, Jovin TG, Siddiqui AH, van Zwam WH, Davis SM, Castano C, Sapkota BL, Fransen PS, Molina C, van Oostenbrugge RJ, Chamorro A, Lingsma H, Silver FL, Donnan GA, Shuaib A, Brown S, Stouch B, Mitchell PJ, Davalos A, Roos YB, Hill MD; HERMES Collaborators. Time to Treatment With Endovascular Thrombectomy and Outcomes From Ischemic Stroke: A Meta-analysis. JAMA. 2016 Sep 27;316(12):1279-88. doi: 10.1001/jama.2016.13647.

    PMID: 27673305BACKGROUND
  • Lopez-Cancio E, Jovin TG, Cobo E, Cerda N, Jimenez M, Gomis M, Hernandez-Perez M, Caceres C, Cardona P, Lara B, Renu A, Llull L, Boned S, Muchada M, Davalos A. Endovascular treatment improves cognition after stroke: A secondary analysis of REVASCAT trial. Neurology. 2017 Jan 17;88(3):245-251. doi: 10.1212/WNL.0000000000003517. Epub 2016 Dec 9.

    PMID: 27940648BACKGROUND
  • Davalos A, Cobo E, Molina CA, Chamorro A, de Miquel MA, Roman LS, Serena J, Lopez-Cancio E, Ribo M, Millan M, Urra X, Cardona P, Tomasello A, Castano C, Blasco J, Aja L, Rubiera M, Gomis M, Renu A, Lara B, Marti-Fabregas J, Jankowitz B, Cerda N, Jovin TG; REVASCAT Trial Investigators. Safety and efficacy of thrombectomy in acute ischaemic stroke (REVASCAT): 1-year follow-up of a randomised open-label trial. Lancet Neurol. 2017 May;16(5):369-376. doi: 10.1016/S1474-4422(17)30047-9. Epub 2017 Mar 16.

    PMID: 28318984BACKGROUND
  • Alicia Martinez-Piñeiro , Giuseppe Lucente, María Hernandez-Perez, Jordi Cortés, Andrea Arbex, Natalia Pérez de la Ossa, Alba Ramos-Fransí, Miriam Almendrote, Mònica Millán, Meritxell Gomis, Laura Dorado, Carlos Castaño, Sebastián Remollo, Patricia Cuadras, Alicia Garrido, Nicolau Guanyabens, Joaquim Broto, Elena López-Cancio, Jaume Coll-Canti, Antoni Dávalos and PROMISE (Somatosensory Evoked POtEntials MonItoring During Acute Ischemic StrokE) Study Group. Prognostic Accuracy of N20 Somatosensory Potential in Patients With Acute Ischemic Stroke and Endovascular Thrombectomy Stroke: Vascular and Interventional Neurology. 2023 | Volume 3, Issue 5: e000735, originally publishedJune 14, 2023, https://doi.org/10.1161/SVIN.122.000735

    RESULT

MeSH Terms

Conditions

Stroke

Interventions

Evoked Potentials, Somatosensory

Condition Hierarchy (Ancestors)

Cerebrovascular DisordersBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesVascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

Evoked PotentialsCortical ExcitabilityElectrophysiological PhenomenaPhysiological PhenomenaNervous System Physiological PhenomenaMusculoskeletal and Neural Physiological Phenomena

Study Officials

  • Antoni Dávalos Errando, PhD

    Fundació Institut d'Investigació en Ciències de la Salut Germans Trias iPujol

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Target Duration
3 Months
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

August 17, 2019

First Posted

September 23, 2019

Study Start

January 1, 2018

Primary Completion

April 30, 2020

Study Completion

April 30, 2020

Last Updated

November 8, 2023

Record last verified: 2023-11

Data Sharing

IPD Sharing
Will not share

Locations