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A Safety and Efficacy Study of Intravenous (IV) Elezanumab Assessing Change in Neurologic Function in Adult Participants With Acute Ischemic Stroke (EAISE)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Know the risks and potential benefits of clinical studies and talk to your health care provider before participating. Read our disclaimer for details. Identifier: NCT04309474
Recruitment Status : Recruiting
First Posted : March 16, 2020
Last Update Posted : September 11, 2020
Information provided by (Responsible Party):

Brief Summary:

Stroke is one of the leading causes death and major functional disability worldwide. Treatment options for acute stroke are limited with many patients having residual neurologic impairment. The purpose of this study is to evaluate the safety and efficacy of elezanumab and assess change in neurologic function in participants following an acute ischemic stroke.

Elezanumab is an investigational drug being developed for the treatment of acute ischemic stroke. This 52-week study is "double-blinded', which means that neither the participants nor the study doctors will know who will be given elezanumab and who will be given placebo (does not contain treatment drug). Participants will be assigned to one of two groups, called treatment arms. Participants in one arm will receive elezanumab and participants in the other arm will receive placebo. There is a 1 in 2 chance that participants will be assigned to placebo. Approximately 80 subjects will be enrolled in 30 sites worldwide.

Participants will receive elezanumab or placebo by intravenous (IV) infusion within 24 hours of "last known normal" (time when the participant was last known to be without signs and symptoms of the current stroke) and every 4 weeks thereafter for 48 weeks for a total of 13 doses.

There will be a higher treatment burden for participants in this trial compared to their standard of care. Participants will attend regular visits during the course of the study at a hospital or clinic. The effect of elezanumab will be checked by medical assessments, blood tests, evaluation of side effects, and completion of questionnaires.

Condition or disease Intervention/treatment Phase
Acute Ischemic Stroke Drug: Elezanumab Drug: Placebo Phase 2

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 80 participants
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomized, Double-Blind, Placebo-Controlled Proof-of-Concept Study to Assess the Safety and Efficacy of Elezanumab in Acute Ischemic Stroke
Actual Study Start Date : June 30, 2020
Estimated Primary Completion Date : November 16, 2021
Estimated Study Completion Date : September 29, 2022

Arm Intervention/treatment
Experimental: Elezanumab
Participants will receive elezanumab dose A
Drug: Elezanumab
Intravenous (IV) infusion
Other Name: ABT-555

Placebo Comparator: Placebo
Participants will receive placebo for elezanumab
Drug: Placebo
Intravenous (IV) infusion

Primary Outcome Measures :
  1. National Institutes of Health Stroke Scale (NIHSS) total score during the treatment period [ Time Frame: Week 0 through Week 52 ]
    The National Institutes of Health Stroke Scale (NIHSS) is a neurological examination used to quantitatively measure the severity of acute stroke by evaluating impact of cerebral infarction on level of consciousness, gaze, visual field, facial palsy, motor ability of arm and leg, limb ataxia, sensation, language, dysarthria, and extinction/inattention. Domains are scored on a scale of 0 to 2, 0 to 3, or 0 to 4, for a total range of 0 -42 points with higher scores indicating impairment.

Secondary Outcome Measures :
  1. Responder Status based on modified Rankin Scale (mRS) [ Time Frame: Week 0 through Week 52 ]
    The mRS is used to assess participant's disability and functional dependence. It is a 6-point scale ranging from 0 (no symptoms) to 5 (severe disability), with additional rating of 6 if the participant is deceased.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   30 Years to 80 Years   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Clinical diagnosis of acute ischemic stroke in anterior circulation, supported by acute brain computed tomography (CT) or magnetic resonance imaging (MRI) consistent with the clinical diagnosis.
  • Able to initiate study drug administration within 24 hours of last known normal.
  • National Institute of Health Stroke Scale (NIHSS) total score of 7 to 21, inclusive.
  • Participants or their legally authorized representative confirms that prior to index stroke, no significant impairment in participant's ability to perform activities of daily living without assistance.

Exclusion Criteria:

  • Evidence of severe stroke on imaging based on available acute imaging studies performed under the standard of care.
  • The index acute ischemic stroke is intended to be treated with endovascular therapy.
  • Evidence of seizure at the onset of index stroke.
  • Evidence of acute myocardial infarction.
  • Symptoms are considered likely to resolve within the subsequent few hours (e.g., transient ischemic attack [TIA]).
  • Known history prior to randomization of clinically significant medical conditions (other than current acute ischemic stroke) or any other reason, including any physical, psychological, or psychiatric condition that in the investigator's opinion would compromise the safety or interfere with the participant's participation in this study.
  • Known medical history of repeated episodes of complex migraine. Participants with history of complex migraine, but with imaging conclusively demonstrating an acute ischemic stroke are still allowed.
  • Female who is pregnant, breastfeeding, or considering becoming pregnant during the study or for within 39 weeks (5 half-lives) after the last dose of study drug.
  • No known receipt of any investigational product within 30 days or 5 half-lives of the drug (whichever is longer) prior to the first dose of study drug. No current enrollment in another interventional clinical study, including pharmacologic and behavioral interventional studies.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT04309474

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Contact: ABBVIE CALL CENTER 847.283.8955

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Sponsors and Collaborators
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Study Director: AbbVie Inc. AbbVie
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Responsible Party: AbbVie Identifier: NCT04309474    
Other Study ID Numbers: M19-148
2019-003753-29 ( EudraCT Number )
First Posted: March 16, 2020    Key Record Dates
Last Update Posted: September 11, 2020
Last Verified: September 2020
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Yes
Plan Description: AbbVie is committed to responsible data sharing regarding the clinical trials we sponsor. This includes access to anonymized, individual and trial-level data (analysis data sets), as well as other information (e.g., protocols and clinical study reports), as long as the trials are not part of an ongoing or planned regulatory submission. This includes requests for clinical trial data for unlicensed products and indications.
Supporting Materials: Study Protocol
Statistical Analysis Plan (SAP)
Clinical Study Report (CSR)
Time Frame: Data requests can be submitted at any time and the data will be accessible for 12 months, with possible extensions considered.
Access Criteria: Access to this clinical trial data can be requested by any qualified researchers who engage in rigorous, independent scientific research, and will be provided following review and approval of a research proposal and Statistical Analysis Plan (SAP) and execution of a Data Sharing Agreement (DSA). For more information on the process, or to submit a request, visit the following link.

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Studies a U.S. FDA-regulated Drug Product: Yes
Studies a U.S. FDA-regulated Device Product: No
Product Manufactured in and Exported from the U.S.: No
Keywords provided by AbbVie:
Acute Ischemic Stroke
Additional relevant MeSH terms:
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Cerebral Infarction
Cerebrovascular Disorders
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Vascular Diseases
Cardiovascular Diseases
Pathologic Processes
Brain Infarction
Brain Ischemia