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    Clinical Trial Results:
    A Multicentre, Randomized, Double-blinded, Placebo-controlled, Parallel Group, Single-dose Design to Determine the Efficacy and Safety of Intravenous NA-1 in Subjects with Acute Ischemic Stroke Undergoing Endovascular Thrombectomy (ESCAPE-NA1 Trial)

    Summary
    EudraCT number
    2016-001826-33
    Trial protocol
    IE   GB   DE  
    Global end of trial date
    20 Nov 2019

    Results information
    Results version number
    v1(current)
    This version publication date
    26 Nov 2020
    First version publication date
    26 Nov 2020
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    NA-1-007
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT02930018
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    NoNO Inc.
    Sponsor organisation address
    479A Wellington Street West, Toronto, Canada, M5V 1E7
    Public contact
    Michael Tymianski, NoNO Inc., +1 4165831687, mtymianski@nonoinc.ca
    Scientific contact
    Michael Tymianski, NoNO Inc., +1 4165831687, mtymianski@nonoinc.ca
    Paediatric regulatory details
    Is trial part of an agreed paediatric investigation plan (PIP)
    No
    Does article 45 of REGULATION (EC) No 1901/2006 apply to this trial?
    No
    Does article 46 of REGULATION (EC) No 1901/2006 apply to this trial?
    No
    Results analysis stage
    Analysis stage
    Final
    Date of interim/final analysis
    28 Nov 2019
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    20 Nov 2019
    Global end of trial reached?
    Yes
    Global end of trial date
    20 Nov 2019
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    The primary objective is to determine the efficacy of the neuroprotectant, Nerinetide, in reducing global disability in subjects with major AIS with a small established infarct core and with good collateral circulation selected for endovascular revascularization.
    Protection of trial subjects
    This study was conducted in substantial compliance with the principles and requirements of the International Council for Harmonisation (ICH) Good Clinical Practice (GCP) regulations/guidelines, Canadian Food and Drug Regulations, United States Code of Federal Regulations (CFR; including Title 21 Parts 50, 54, 56, and 312), the Declaration of Helsinki and the Canadian Tri-Council Policy Statement on Ethical Conduct for Research involving Humans (2), where applicable.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    01 Mar 2017
    Long term follow-up planned
    No
    Independent data monitoring committee (IDMC) involvement?
    Yes
    Population of trial subjects
    Number of subjects enrolled per country
    Country: Number of subjects enrolled
    Australia: 43
    Country: Number of subjects enrolled
    Canada: 505
    Country: Number of subjects enrolled
    Germany: 76
    Country: Number of subjects enrolled
    Ireland: 9
    Country: Number of subjects enrolled
    Korea, Republic of: 42
    Country: Number of subjects enrolled
    Sweden: 14
    Country: Number of subjects enrolled
    United Kingdom: 2
    Country: Number of subjects enrolled
    United States: 414
    Worldwide total number of subjects
    1105
    EEA total number of subjects
    101
    Number of subjects enrolled per age group
    In utero
    0
    Preterm newborn - gestational age < 37 wk
    0
    Newborns (0-27 days)
    0
    Infants and toddlers (28 days-23 months)
    0
    Children (2-11 years)
    0
    Adolescents (12-17 years)
    0
    Adults (18-64 years)
    398
    From 65 to 84 years
    578
    85 years and over
    129

    Subject disposition

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    Recruitment
    Recruitment details
    Between 01 March 2017 and 12 August 2019, 1105 subjects were randomized to receive nerinetide or placebo at 48 sites in Canada, US, Germany, Ireland, Sweden, United Kingdom, Australia and the Republic of Korea.

    Pre-assignment
    Screening details
    Patients with acute ischaemic stroke who were selected to undergo EVT were randomized (1:1) to receive a single intravenous dose of nerinetide (NA-1) or placebo. All patients underwent endovascular thrombectomy and received alteplase in usual care when indicated.

    Period 1
    Period 1 title
    Overall Trial (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Double blind
    Roles blinded
    Subject, Investigator, Monitor, Data analyst

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    Nerinetide (NA-1)
    Arm description
    Subjects received a single intravenous infusion of nerinetide over 10 ± 1 minutes.
    Arm type
    Experimental

    Investigational medicinal product name
    Nerinetide
    Investigational medicinal product code
    NA-1
    Other name
    Pharmaceutical forms
    Solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    2.6 mg/kg of active drug (up to a maximum of 270 mg), as a single 10 ±1minute IV infusion.

    Arm title
    Placebo
    Arm description
    Subjects received a single intravenous infusion of placebo over 10 ± 1 minutes.
    Arm type
    Placebo

    Investigational medicinal product name
    Placebo
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    Phosphate Buffered Saline of equivalent volume given as single 10 ±1minute IV infusion.

    Number of subjects in period 1
    Nerinetide (NA-1) Placebo
    Started
    549
    556
    Completed
    546
    550
    Not completed
    3
    6
         Consent withdrawn by subject
    2
    5
         Lost to follow-up
    1
    1

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Nerinetide (NA-1)
    Reporting group description
    Subjects received a single intravenous infusion of nerinetide over 10 ± 1 minutes.

    Reporting group title
    Placebo
    Reporting group description
    Subjects received a single intravenous infusion of placebo over 10 ± 1 minutes.

    Reporting group values
    Nerinetide (NA-1) Placebo Total
    Number of subjects
    549 556 1105
    Age categorical
    Units: Subjects
        Adults (18-64 years)
    194 204 398
        From 65-84 years
    293 285 578
        85 years and over
    62 67 129
    Age continuous
    Units: years
        median (full range (min-max))
    71.0 (18 to 98) 70.0 (20 to 103) -
    Gender categorical
    Units: Subjects
        Female
    268 281 549
        Male
    281 275 556
    Ethnicity(NIH/OMB)
    Units: Subjects
        Hispanic or Latino
    8 15 23
        Not Hispanic or Latino
    541 540 1081
        Unknown or Not Reported
    0 1 1
    Race(NIH/OMB)
    Units: Subjects
        Asian
    55 52 107
        Native Hawaiian or Other Pacific Islander
    0 3 3
        Black or African American
    45 31 76
        White
    436 453 889
        More than one race
    0 0 0
        Unknown or Not Reported
    11 15 26
        American Indian or Alaskan Native
    2 2 4
    Alteplase Treatment
    Treatment with alteplase as part of standard-of-care in addition to study drug
    Units: Subjects
        Subjects treated with alteplase
    330 329 659
        Subjects not treated with alteplase
    219 227 446

    End points

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    End points reporting groups
    Reporting group title
    Nerinetide (NA-1)
    Reporting group description
    Subjects received a single intravenous infusion of nerinetide over 10 ± 1 minutes.

    Reporting group title
    Placebo
    Reporting group description
    Subjects received a single intravenous infusion of placebo over 10 ± 1 minutes.

    Primary: Modified Rankin Score (mRS)

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    End point title
    Modified Rankin Score (mRS)
    End point description
    Overall proportion of subjects experiencing a favorable functional outcome 90 days post-randomization, defined as 0 to 2 on the mRS. The primary hypothesis was that administration of nerinetide (NA-1) would result in an increase in the proportion of responders. The primary analysis was a Wald test for treatment group difference in the primary outcome from a logistic regression adjusted for the 2 stratification variables (alteplase use, first declared thrombectomy device), and the 6 covariates used in the minimization. The trial was designed to have 80% power to detect an 8.7% absolute difference between groups.
    End point type
    Primary
    End point timeframe
    90 days
    End point values
    Nerinetide (NA-1) Placebo
    Number of subjects analysed
    549
    556
    Units: Subjects
    337
    329
    Statistical analysis title
    mRS on ITT population
    Comparison groups
    Placebo v Nerinetide (NA-1)
    Number of subjects included in analysis
    1105
    Analysis specification
    Pre-specified
    Analysis type
    superiority [1]
    P-value
    = 0.335 [2]
    Method
    Regression, Logistic
    Parameter type
    Odds ratio (OR)
    Point estimate
    1.146
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.869
         upper limit
    1.511
    Notes
    [1] - Primary outcome was not met in the trial population as a whole, possibly due to a drug-drug interaction between nerinetide and alteplase, as evidenced by a large absolute benefit which was observed for patients who received nerinetide and were not treated with usual care alteplase. The biological plausibility of this hypothesis was supported by pharmacokinetic data obtained from trial participants.
    [2] - 2 sided 0.05 significance level

    Secondary: National Institutes of Health Stroke Score (NIHSS)

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    End point title
    National Institutes of Health Stroke Score (NIHSS)
    End point description
    Proportion of subjects with good neurological outcome, as defined by a score of 0-2 on the NIHSS at Day 90 or the last rating.
    End point type
    Secondary
    End point timeframe
    90 Days or the last rating
    End point values
    Nerinetide (NA-1) Placebo
    Number of subjects analysed
    549
    556
    Units: Subjects
    320
    320
    Statistical analysis title
    NIHSS on ITT Population
    Comparison groups
    Nerinetide (NA-1) v Placebo
    Number of subjects included in analysis
    1105
    Analysis specification
    Pre-specified
    Analysis type
    superiority [3]
    P-value
    = 0.866 [4]
    Method
    Regression, Logistic
    Parameter type
    Odds ratio (OR)
    Point estimate
    1.024
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.781
         upper limit
    1.342
    Notes
    [3] - Same comment as for the Primary Outcome
    [4] - 2 sided 0.05 significance level.

    Secondary: Mortality Rate

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    End point title
    Mortality Rate
    End point description
    A reduction in mortality rate, as defined by event rate (%) for mortality over the 90-day study period
    End point type
    Secondary
    End point timeframe
    90 Days
    End point values
    Nerinetide (NA-1) Placebo
    Number of subjects analysed
    549
    556
    Units: Subjects
    64
    74
    Statistical analysis title
    Mortality on ITT population
    Comparison groups
    Nerinetide (NA-1) v Placebo
    Number of subjects included in analysis
    1105
    Analysis specification
    Pre-specified
    Analysis type
    superiority [5]
    P-value
    = 0.199 [6]
    Method
    Regression, Logistic
    Parameter type
    Odds ratio (OR)
    Point estimate
    0.776
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.527
         upper limit
    1.143
    Notes
    [5] - Same comment as for the Primary Outcome
    [6] - 2 sided 0.05 significance level

    Post-hoc: Primary Outcome (mRS) in the No-Alteplase Sub-group

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    End point title
    Primary Outcome (mRS) in the No-Alteplase Sub-group
    End point description
    Overall proportion of subjects experiencing a favorable functional outcome 90 days post-randomization, defined as 0 to 2 on the mRS in the sub-group of participants not treated with alteplase as part of standard-of-care
    End point type
    Post-hoc
    End point timeframe
    90 days
    End point values
    Nerinetide (NA-1) Placebo
    Number of subjects analysed
    219
    227
    Units: Subjects
    130
    113
    Statistical analysis title
    mRS in the No-Alteplase Sub-group
    Comparison groups
    Nerinetide (NA-1) v Placebo
    Number of subjects included in analysis
    446
    Analysis specification
    Post-hoc
    Analysis type
    superiority [7]
    P-value
    = 0.028
    Method
    Regression, Logistic
    Parameter type
    Odds ratio (OR)
    Point estimate
    1.657
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    1.055
         upper limit
    2.603
    Notes
    [7] - The unadjusted absolute risk difference in the no-alteplase subgroup was 9.6% (the relative risk difference was 19.3%).

    Post-hoc: Primary Outcome (mRS) in the Alteplase Sub-group

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    End point title
    Primary Outcome (mRS) in the Alteplase Sub-group
    End point description
    Overall proportion of subjects experiencing a favorable functional outcome 90 days post-randomization, defined as 0 to 2 on the mRS in the sub-group of participants treated with alteplase as part of standard-of-care
    End point type
    Post-hoc
    End point timeframe
    90 days
    End point values
    Nerinetide (NA-1) Placebo
    Number of subjects analysed
    330
    329
    Units: Subjects
    207
    216
    Statistical analysis title
    mRS in the Alteplase group
    Comparison groups
    Nerinetide (NA-1) v Placebo
    Number of subjects included in analysis
    659
    Analysis specification
    Post-hoc
    Analysis type
    superiority [8]
    P-value
    = 0.529
    Method
    Regression, Logistic
    Parameter type
    Odds ratio (OR)
    Point estimate
    0.887
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.612
         upper limit
    1.286
    Notes
    [8] - Treatment effect was not observed in the alteplase group, possibly due to a drug-drug interaction between nerinetide and alteplase, as evidenced by a large absolute benefit which was observed for patients who received nerinetide and were not treated with usualcare alteplase. The biological plausibility of this hypothesis was supported by pharmacokinetic data obtained from trial participants.

    Post-hoc: NIHSS in the No-Alteplase Sub-group

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    End point title
    NIHSS in the No-Alteplase Sub-group
    End point description
    Proportion of subjects with good neurological outcome, as defined by a score of 0-2 on the NIHSS at Day 90 or the last rating in the sub-group of participants not treated with alteplase as part of standard-of-care
    End point type
    Post-hoc
    End point timeframe
    90 days or last rating
    End point values
    Nerinetide (NA-1) Placebo
    Number of subjects analysed
    219
    227
    Units: Subjects
    129
    113
    Statistical analysis title
    NIHSS in No-Alteplase sub-group
    Comparison groups
    Placebo v Nerinetide (NA-1)
    Number of subjects included in analysis
    446
    Analysis specification
    Post-hoc
    Analysis type
    superiority
    P-value
    = 0.088
    Method
    Regression, Logistic
    Parameter type
    Odds ratio (OR)
    Point estimate
    1.482
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.943
         upper limit
    2.329

    Post-hoc: NIHSS in the Alteplase Sub-group

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    End point title
    NIHSS in the Alteplase Sub-group
    End point description
    Proportion of subjects with good neurological outcome, as defined by a score of 0-2 on the NIHSS at Day 90 or the last rating in the sub-group of participants treated with alteplase as part of standard-of-care
    End point type
    Post-hoc
    End point timeframe
    90 days or last rating
    End point values
    Nerinetide (NA-1) Placebo
    Number of subjects analysed
    330
    329
    Units: Subjects
    191
    207
    Statistical analysis title
    NIHSS in the Alteplase sub-group
    Comparison groups
    Nerinetide (NA-1) v Placebo
    Number of subjects included in analysis
    659
    Analysis specification
    Post-hoc
    Analysis type
    superiority
    P-value
    = 0.181
    Method
    Regression, Logistic
    Parameter type
    Odds ratio (OR)
    Point estimate
    0.782
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.545
         upper limit
    1.121

    Post-hoc: Mortality Rate in the No-Alteplase Sub-group

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    End point title
    Mortality Rate in the No-Alteplase Sub-group
    End point description
    A reduction in mortality rate, as defined by event rate (%) for mortality over the 90-day study period in the sub-group of participants not treated with alteplase as part of standard-of-care
    End point type
    Post-hoc
    End point timeframe
    90 days
    End point values
    Nerinetide (NA-1) Placebo
    Number of subjects analysed
    219
    227
    Units: Subjects
    25
    43
    Statistical analysis title
    Mortality Rate in the No-Alteplase Sub-group
    Comparison groups
    Nerinetide (NA-1) v Placebo
    Number of subjects included in analysis
    446
    Analysis specification
    Post-hoc
    Analysis type
    superiority [9]
    P-value
    = 0.055
    Method
    Regression, Logistic
    Parameter type
    Odds ratio (OR)
    Point estimate
    0.572
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.323
         upper limit
    1.013
    Notes
    [9] - The unadjusted absolute reduction in mortality rate was 7.5% (relative difference of 39.7%).

    Post-hoc: Mortality Rate in the Alteplase Sub-group

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    End point title
    Mortality Rate in the Alteplase Sub-group
    End point description
    A reduction in mortality rate, as defined by event rate (%) for mortality over the 90-day study period in the sub-group of participants treated with alteplase as part of standard-of-care
    End point type
    Post-hoc
    End point timeframe
    90 days
    End point values
    Nerinetide (NA-1) Placebo
    Number of subjects analysed
    330
    329
    Units: Subjects
    39
    31
    Statistical analysis title
    Mortality Rate in the Alteplase Sub-group
    Comparison groups
    Nerinetide (NA-1) v Placebo
    Number of subjects included in analysis
    659
    Analysis specification
    Post-hoc
    Analysis type
    superiority
    P-value
    = 0.869
    Method
    Regression, Logistic
    Parameter type
    Odds ratio (OR)
    Point estimate
    1.05
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.588
         upper limit
    1.874

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    Adverse Events occurring within 30 days of randomization and all Serious Adverse Events up to the end of study visit (Day 90 visit or death) or until the subject was deemed "lost to follow-up" were reported.
    Adverse event reporting additional description
    Adverse Events of Special Interest (AESI) were collected, and included any Adverse Event occurred within 2 hours of end of drug infusion. Serious Adverse Events (SAEs) exceeding 1% in frequency were reported. SAEs occurred at a frequency of less than 1% (<1%) were grouped and reported as 'All SAEs <1%' in each SOC.
    Assessment type
    Non-systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    20
    Reporting groups
    Reporting group title
    Nerinetide
    Reporting group description
    -

    Reporting group title
    Placebo
    Reporting group description
    -

    Serious adverse events
    Nerinetide Placebo
    Total subjects affected by serious adverse events
         subjects affected / exposed
    181 / 547 (33.09%)
    198 / 554 (35.74%)
         number of deaths (all causes)
    64
    73
         number of deaths resulting from adverse events
    1
    0
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    All SAEs <1% Neoplasms benign, malignant and unspecified (incl cysts and polyps)
         subjects affected / exposed
    5 / 547 (0.91%)
    7 / 554 (1.26%)
         occurrences causally related to treatment / all
    0 / 5
    0 / 7
         deaths causally related to treatment / all
    0 / 1
    0 / 3
    Vascular disorders
    Hypotension
         subjects affected / exposed
    7 / 547 (1.28%)
    1 / 554 (0.18%)
         occurrences causally related to treatment / all
    5 / 7
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    All SAEs <1% Vascular disorders
         subjects affected / exposed
    11 / 547 (2.01%)
    9 / 554 (1.62%)
         occurrences causally related to treatment / all
    0 / 11
    0 / 9
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Surgical and medical procedures
    All SAEs <1% Surgical and medical procedures
         subjects affected / exposed
    1 / 547 (0.18%)
    0 / 554 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    General disorders and administration site conditions
    All SAEs <1% General disorders and administration site conditions
         subjects affected / exposed
    4 / 547 (0.73%)
    10 / 554 (1.81%)
         occurrences causally related to treatment / all
    0 / 4
    0 / 10
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Social circumstances
    All SAEs <1% Social circumstances
         subjects affected / exposed
    0 / 547 (0.00%)
    1 / 554 (0.18%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Respiratory, thoracic and mediastinal disorders
    Pneumonia aspiration
         subjects affected / exposed
    19 / 547 (3.47%)
    12 / 554 (2.17%)
         occurrences causally related to treatment / all
    0 / 19
    0 / 12
         deaths causally related to treatment / all
    0 / 8
    0 / 2
    Pulmonary embolism
         subjects affected / exposed
    2 / 547 (0.37%)
    6 / 554 (1.08%)
         occurrences causally related to treatment / all
    0 / 2
    0 / 6
         deaths causally related to treatment / all
    0 / 0
    0 / 2
    Respiratory failure
         subjects affected / exposed
    3 / 547 (0.55%)
    8 / 554 (1.44%)
         occurrences causally related to treatment / all
    0 / 3
    0 / 8
         deaths causally related to treatment / all
    0 / 3
    0 / 5
    All SAEs <1% Respiratory, thoracic and mediastinal disorders
         subjects affected / exposed
    8 / 547 (1.46%)
    12 / 554 (2.17%)
         occurrences causally related to treatment / all
    0 / 8
    1 / 12
         deaths causally related to treatment / all
    0 / 4
    0 / 8
    Psychiatric disorders
    All SAEs <1% Psychiatric disorders
         subjects affected / exposed
    3 / 547 (0.55%)
    10 / 554 (1.81%)
         occurrences causally related to treatment / all
    0 / 3
    0 / 10
         deaths causally related to treatment / all
    0 / 0
    0 / 1
    Investigations
    All SAEs <1% Investigations
         subjects affected / exposed
    2 / 547 (0.37%)
    1 / 554 (0.18%)
         occurrences causally related to treatment / all
    0 / 2
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Injury, poisoning and procedural complications
    All SAEs <1% Injury, poisoning and procedural complications
         subjects affected / exposed
    7 / 547 (1.28%)
    21 / 554 (3.79%)
         occurrences causally related to treatment / all
    0 / 7
    0 / 23
         deaths causally related to treatment / all
    0 / 2
    0 / 2
    Vascular procedure complication
         subjects affected / exposed
    9 / 547 (1.65%)
    8 / 554 (1.44%)
         occurrences causally related to treatment / all
    0 / 9
    0 / 9
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Congenital, familial and genetic disorders
    All SAEs <1% Congenital, familial and genetic disorders
         subjects affected / exposed
    1 / 547 (0.18%)
    2 / 554 (0.36%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Cardiac disorders
    All SAEs <1% Cardiac disorders
         subjects affected / exposed
    14 / 547 (2.56%)
    12 / 554 (2.17%)
         occurrences causally related to treatment / all
    0 / 14
    0 / 12
         deaths causally related to treatment / all
    0 / 6
    0 / 6
    Atrial fibrillation
         subjects affected / exposed
    6 / 547 (1.10%)
    5 / 554 (0.90%)
         occurrences causally related to treatment / all
    0 / 6
    0 / 5
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Cardiac failure congestive
         subjects affected / exposed
    9 / 547 (1.65%)
    4 / 554 (0.72%)
         occurrences causally related to treatment / all
    0 / 9
    0 / 4
         deaths causally related to treatment / all
    0 / 4
    0 / 2
    Myocardial infarction
         subjects affected / exposed
    6 / 547 (1.10%)
    3 / 554 (0.54%)
         occurrences causally related to treatment / all
    0 / 6
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    0 / 1
    Nervous system disorders
    All SAEs <1% Nervous system disorders
         subjects affected / exposed
    21 / 547 (3.84%)
    18 / 554 (3.25%)
         occurrences causally related to treatment / all
    1 / 21
    1 / 18
         deaths causally related to treatment / all
    0 / 0
    0 / 1
    Haemorrhagic transformation stroke
         subjects affected / exposed
    8 / 547 (1.46%)
    11 / 554 (1.99%)
         occurrences causally related to treatment / all
    0 / 8
    0 / 11
         deaths causally related to treatment / all
    0 / 4
    0 / 7
    Ischaemic stroke
         subjects affected / exposed
    18 / 547 (3.29%)
    20 / 554 (3.61%)
         occurrences causally related to treatment / all
    0 / 18
    0 / 20
         deaths causally related to treatment / all
    0 / 6
    0 / 3
    Stroke in evolution
         subjects affected / exposed
    36 / 547 (6.58%)
    43 / 554 (7.76%)
         occurrences causally related to treatment / all
    1 / 36
    0 / 43
         deaths causally related to treatment / all
    1 / 27
    0 / 32
    Blood and lymphatic system disorders
    All SAEs <1% Blood and lymphatic system disorders
         subjects affected / exposed
    2 / 547 (0.37%)
    4 / 554 (0.72%)
         occurrences causally related to treatment / all
    0 / 2
    0 / 4
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Eye disorders
    All SAEs <1% Eye disorders
         subjects affected / exposed
    3 / 547 (0.55%)
    3 / 554 (0.54%)
         occurrences causally related to treatment / all
    0 / 3
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Gastrointestinal disorders
    All SAEs <1% Gastrointestinal disorders
         subjects affected / exposed
    10 / 547 (1.83%)
    6 / 554 (1.08%)
         occurrences causally related to treatment / all
    0 / 10
    0 / 6
         deaths causally related to treatment / all
    0 / 1
    0 / 1
    Gastrointestinal haemorrhage
         subjects affected / exposed
    6 / 547 (1.10%)
    4 / 554 (0.72%)
         occurrences causally related to treatment / all
    0 / 6
    0 / 4
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Hepatobiliary disorders
    All SAEs <1% Hepatobiliary disorders
         subjects affected / exposed
    2 / 547 (0.37%)
    3 / 554 (0.54%)
         occurrences causally related to treatment / all
    0 / 2
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    0 / 1
    Skin and subcutaneous tissue disorders
    All SAEs <1% Skin and subcutaneous tissue disorders
         subjects affected / exposed
    1 / 547 (0.18%)
    1 / 554 (0.18%)
         occurrences causally related to treatment / all
    0 / 1
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Renal and urinary disorders
    All SAEs <1% Renal and urinary disorders
         subjects affected / exposed
    6 / 547 (1.10%)
    3 / 554 (0.54%)
         occurrences causally related to treatment / all
    0 / 6
    0 / 4
         deaths causally related to treatment / all
    0 / 0
    0 / 1
    Endocrine disorders
    All SAEs <1% Endocrine disorders
         subjects affected / exposed
    1 / 547 (0.18%)
    0 / 554 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Musculoskeletal and connective tissue disorders
    All SAEs <1% Musculoskeletal and connective tissue disorders
         subjects affected / exposed
    0 / 547 (0.00%)
    1 / 554 (0.18%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Infections and infestations
    All SAEs <1% Infections and infestations
         subjects affected / exposed
    16 / 547 (2.93%)
    16 / 554 (2.89%)
         occurrences causally related to treatment / all
    0 / 17
    0 / 16
         deaths causally related to treatment / all
    0 / 5
    0 / 4
    Pneumonia
         subjects affected / exposed
    6 / 547 (1.10%)
    5 / 554 (0.90%)
         occurrences causally related to treatment / all
    0 / 6
    0 / 5
         deaths causally related to treatment / all
    0 / 1
    0 / 2
    Sepsis
         subjects affected / exposed
    3 / 547 (0.55%)
    6 / 554 (1.08%)
         occurrences causally related to treatment / all
    0 / 3
    0 / 6
         deaths causally related to treatment / all
    0 / 0
    0 / 1
    Metabolism and nutrition disorders
    All SAEs <1% Metabolism and nutrition disorders
         subjects affected / exposed
    1 / 547 (0.18%)
    2 / 554 (0.36%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 1
    Frequency threshold for reporting non-serious adverse events: 1%
    Non-serious adverse events
    Nerinetide Placebo
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    474 / 547 (86.65%)
    472 / 554 (85.20%)
    Injury, poisoning and procedural complications
    Vascular procedure complication
         subjects affected / exposed
    49 / 547 (8.96%)
    54 / 554 (9.75%)
         occurrences all number
    54
    58
    Vascular disorders
    Hypotension
         subjects affected / exposed
    60 / 547 (10.97%)
    54 / 554 (9.75%)
         occurrences all number
    61
    55
    Cardiac disorders
    Atrial fibrillation
         subjects affected / exposed
    48 / 547 (8.78%)
    45 / 554 (8.12%)
         occurrences all number
    49
    48
    Bradycardia
         subjects affected / exposed
    18 / 547 (3.29%)
    32 / 554 (5.78%)
         occurrences all number
    18
    34
    Nervous system disorders
    Headache
         subjects affected / exposed
    79 / 547 (14.44%)
    88 / 554 (15.88%)
         occurrences all number
    82
    95
    Haemorrhagic transformation stroke
         subjects affected / exposed
    60 / 547 (10.97%)
    66 / 554 (11.91%)
         occurrences all number
    61
    66
    Stroke in evolution
         subjects affected / exposed
    48 / 547 (8.78%)
    54 / 554 (9.75%)
         occurrences all number
    49
    54
    Blood and lymphatic system disorders
    Anaemia
         subjects affected / exposed
    33 / 547 (6.03%)
    42 / 554 (7.58%)
         occurrences all number
    33
    45
    General disorders and administration site conditions
    Pyrexia
         subjects affected / exposed
    40 / 547 (7.31%)
    47 / 554 (8.48%)
         occurrences all number
    41
    47
    Vessel puncture site haematoma
         subjects affected / exposed
    32 / 547 (5.85%)
    28 / 554 (5.05%)
         occurrences all number
    32
    29
    Gastrointestinal disorders
    Constipation
         subjects affected / exposed
    34 / 547 (6.22%)
    45 / 554 (8.12%)
         occurrences all number
    34
    45
    Nausea
         subjects affected / exposed
    37 / 547 (6.76%)
    31 / 554 (5.60%)
         occurrences all number
    37
    33
    Vomiting
         subjects affected / exposed
    31 / 547 (5.67%)
    36 / 554 (6.50%)
         occurrences all number
    31
    39
    Respiratory, thoracic and mediastinal disorders
    Pneumonia aspiration
         subjects affected / exposed
    35 / 547 (6.40%)
    28 / 554 (5.05%)
         occurrences all number
    37
    33
    Infections and infestations
    Urinary tract infection
         subjects affected / exposed
    52 / 547 (9.51%)
    68 / 554 (12.27%)
         occurrences all number
    52
    68
    Metabolism and nutrition disorders
    Hypokalaemia
         subjects affected / exposed
    33 / 547 (6.03%)
    34 / 554 (6.14%)
         occurrences all number
    35
    35

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    15 Apr 2019
    Amendment to protocol included changes which were made in order to address the requests obtained from the German Health Authorities (BfArM) and the applicable ethics committee during their review of the clinical trial application: •Clarifying the specific procedure for inclusion of subjects by the investigator where local regulations and ethics allow (Inclusion Criteria #9 - informed consent). •Clarification to Exclusion Criteria #8 on possible contraindications to iodinated contrast preventing endovascular intervention. •Additional IDMC review at 300 subjects •Removal of the CTA imaging procedure at 2-8 hours in subjects who did not complete a digital subtraction cerebral angiogram, as not standard of care in all regions. •Clarification on maximum dosing to reflect the dosing for subjects weighing 105-120 kg. There is no change to the actual dosing of the drug as used in the trial. •Align Protocol Section 11 (STATISTICS) with the Statistical Analysis Plan •Provide clarification on the conduct of laboratory testing and the collection of pre-morbid mRS.

    Interruptions (globally)

    Were there any global interruptions to the trial? No

    Limitations and caveats

    Limitations of the trial such as small numbers of subjects analysed or technical problems leading to unreliable data.
    None reported

    Online references

    http://www.ncbi.nlm.nih.gov/pubmed/32087818
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