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    Clinical Trial Results:
    A Phase 2, Randomized, Double-Blind, Placebo-Controlled Trial of IMO-8400 in Patients with Dermatomyositis

    Summary
    EudraCT number
    2015-003277-15
    Trial protocol
    GB   HU   SE  
    Global end of trial date
    04 Apr 2018

    Results information
    Results version number
    v1(current)
    This version publication date
    13 Dec 2021
    First version publication date
    13 Dec 2021
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    8400-211
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT02612857
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Idera Pharmaceuticals, Inc.
    Sponsor organisation address
    505 Eagleview Blvd., Suite 212, Exton, United States, PA 19341
    Public contact
    Clinical Trials Mailbox, Idera Pharmaceuticals, Inc., +1 617 679-5500, clinicaltrials@iderapharma.com
    Scientific contact
    Clinical Trials Mailbox, Idera Pharmaceuticals, Inc., +1 617 679-5500, clinicaltrials@iderapharma.com
    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
    04 Apr 2018
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    04 Apr 2018
    Global end of trial reached?
    Yes
    Global end of trial date
    04 Apr 2018
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    The main objectives were: • To assess the safety and tolerability of IMO-8400 in adult patients with dermatomyositis (DM) with active skin and muscle disease • To assess the effect of IMO-8400 on the cutaneous manifestations of DM
    Protection of trial subjects
    A data monitoring committee (DMC), operating autonomously from Idera, was responsible for providing independent recommendations to Idera about evolving risk-benefit observed in the course of the study and any protocol modifications required during the course of the study. The DMC was to comprise at least 1 physician experienced in treating DM, and an immunologist and a biostatistician.
    Background therapy
    Investigators could prescribe concomitant medications or treatments deemed necessary to provide adequate supportive care. The following therapies were permitted as concomitant medications: • Corticosteroids • Non-steroidal immunomodulatory medications - no more than 1 of the following: IVIG, mycophenolate mofetil, cyclophosphamide, cyclosporine, leflunomide, tacrolimus, methotrexate, azathioprine • Topical corticosteroids for use on the scalp only For patients who were on corticosteroids or non-steroidal immunomodulatory medications, a stable regimen should have been established prior to Screening and maintained during the 24 weeks of study drug treatment. Adjustments in dosage for increases in body weight were permitted but were not mandatory. If a patient had been on more than one non-steroidal immunomodulatory medication, they had to have stopped administration of the additional non-steroidal immunomodulatory medications for at least the washout period defined in the protocol.
    Evidence for comparator
    The only comparator was a matching placebo in this double-blind trial.
    Actual start date of recruitment
    03 Dec 2015
    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
    United States: 24
    Country: Number of subjects enrolled
    Hungary: 5
    Country: Number of subjects enrolled
    United Kingdom: 1
    Worldwide total number of subjects
    30
    EEA total number of subjects
    5
    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)
    24
    From 65 to 84 years
    6
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    Patients aged 18 to 75 years with definite or probable DM (Bohan and Peter criteria; 1975) or had all definite or probable criteria except heliotrope rash and Gottron’s signs/papules if they had 1 or more of the following: documented DM autoantibodies or classic DM associated skin change.

    Pre-assignment
    Screening details
    Screening evaluations were to be completed within 28 days prior to administering the first dose of study drug. A total of 34 patients were screened and 30 patients were enrolled and treated in this study. A full medical/surgical history, including information relating to prior or existing medical condition/ surgical procedures that may be relevant.

    Period 1
    Period 1 title
    Treatment period (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Double blind
    Roles blinded
    Subject, Investigator, Monitor, Data analyst, Carer, Assessor
    Blinding implementation details
    Randomization took place using an IXRS. Placebo matching the study drug was used. Since adminsitration was subcutaneous (SC), and IMO-8400 has been associated with potentially unblinding injection site reactions (ISRs), efficacy assessments were performed by qualified and trained raters who were blinded to treatment assignment and study drug injection sites and who had no other role or responsibility in the study other than administration of these efficacy assessments.

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    Placebo
    Arm description
    Once weekly SC injections of placebo (Sterile Saline for Injection, USP/EP) for 24 weeks.
    Arm type
    Placebo

    Investigational medicinal product name
    Sterile Saline
    Investigational medicinal product code
    N/A
    Other name
    Pharmaceutical forms
    Solution for injection
    Routes of administration
    Subcutaneous use
    Dosage and administration details
    Once weekly SC injections for 24 weeks.

    Arm title
    IMO-8400 (0.6 mg/kg)
    Arm description
    Once weekly SC injections of IMO-8400 at 0.6 mg/kg for 24 weeks.
    Arm type
    Experimental

    Investigational medicinal product name
    IMO-8400
    Investigational medicinal product code
    IMO-8400
    Other name
    Pharmaceutical forms
    Powder for solution for injection
    Routes of administration
    Subcutaneous use
    Dosage and administration details
    Once weekly SC injections of IMO-8400 at 0.6 mg/kg for 24 weeks.

    Arm title
    IMO-8400 (1.8 mg/kg)
    Arm description
    Once weekly SC injections of IMO-8400 at 1.8 mg/kg for 24 weeks.
    Arm type
    Experimental

    Investigational medicinal product name
    IMO-8400
    Investigational medicinal product code
    IMO-8400
    Other name
    Pharmaceutical forms
    Powder for solution for injection
    Routes of administration
    Subcutaneous use
    Dosage and administration details
    Once weekly SC injections of IMO-8400 at 1.8 mg/kg for 24 weeks.

    Number of subjects in period 1
    Placebo IMO-8400 (0.6 mg/kg) IMO-8400 (1.8 mg/kg)
    Started
    11
    9
    10
    Completed
    8
    5
    6
    Not completed
    3
    4
    4
         Consent withdrawn by subject
    1
    -
    1
         Adverse event, non-fatal
    1
    3
    -
         Adverse Event of Special Interest
    -
    -
    1
         Lack of efficacy
    1
    1
    2

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Placebo
    Reporting group description
    Once weekly SC injections of placebo (Sterile Saline for Injection, USP/EP) for 24 weeks.

    Reporting group title
    IMO-8400 (0.6 mg/kg)
    Reporting group description
    Once weekly SC injections of IMO-8400 at 0.6 mg/kg for 24 weeks.

    Reporting group title
    IMO-8400 (1.8 mg/kg)
    Reporting group description
    Once weekly SC injections of IMO-8400 at 1.8 mg/kg for 24 weeks.

    Reporting group values
    Placebo IMO-8400 (0.6 mg/kg) IMO-8400 (1.8 mg/kg) Total
    Number of subjects
    11 9 10 30
    Age categorical
    Units: Subjects
        Adults (18-64 years)
    10 7 7 24
        From 65-84 years
    1 2 3 6
    Age continuous
    Age of patients at baseline.
    Units: years
        arithmetic mean (standard deviation)
    51.3 ( 10.55 ) 48.3 ( 14.23 ) 54.6 ( 14.12 ) -
    Gender categorical
    Units: Subjects
        Female
    7 7 9 23
        Male
    4 2 1 7
    Body Mass Index (kg/m2)
    Body mass index was calculated as weight in kg / (height in cm / 100)2
    Units: kg/m2
        arithmetic mean (standard deviation)
    34.15 ( 7.339 ) 26.83 ( 5.148 ) 27.76 ( 5.749 ) -

    End points

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    End points reporting groups
    Reporting group title
    Placebo
    Reporting group description
    Once weekly SC injections of placebo (Sterile Saline for Injection, USP/EP) for 24 weeks.

    Reporting group title
    IMO-8400 (0.6 mg/kg)
    Reporting group description
    Once weekly SC injections of IMO-8400 at 0.6 mg/kg for 24 weeks.

    Reporting group title
    IMO-8400 (1.8 mg/kg)
    Reporting group description
    Once weekly SC injections of IMO-8400 at 1.8 mg/kg for 24 weeks.

    Primary: Change from Baseline in mCDASIv2-activity score

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    End point title
    Change from Baseline in mCDASIv2-activity score
    End point description
    The efficacy of treatment with IMO-8400 was assessed primarily by the changes over time in CDASI-Activity score (modified CDASI version 2 [mCDASIv2]). The CDASIv2 is a clinician administered, 1-page instrument designed to evaluate the cutaneous manifestations of DM. The CDASI includes separate measurements for disease activity and damage and yields a total score that captures overall disease state, an activity score that reflects the current inflammatory state of disease, and a damage score. Decreases in CDASI scores are indicative of improvement. The CDASIv2 was modified for this study such that abdominal assessments were not performed after the first injection of study drug, to avoid unblinding the raters. Therefore, post-injection score totals did not include scores for the abdomen.
    End point type
    Primary
    End point timeframe
    Measured at Visits 2, 6, 10, 14, 18, 22, and 26 (EOT/Week 25).
    End point values
    Placebo IMO-8400 (0.6 mg/kg) IMO-8400 (1.8 mg/kg)
    Number of subjects analysed
    11
    9
    10
    Units: mCDASIv2-activity score
        least squares mean (confidence interval 95%)
    28.3 (24.74 to 31.77)
    27.6 (23.41 to 31.72)
    25.1 (21.36 to 28.90)
    Statistical analysis title
    mCDASIv2-Activity Score (0.6mg/kg)
    Statistical analysis description
    The primary efficacy analysis was a repeated measures mixed model analysis (RMMM) of mCDASIv2-Activity score across all visits; a one-sided test was performed with alpha set at 0.05. The RMMM used the mCDASIv2-Activity score as dependent variable and treatment group, visit week, treatment group by time interaction, and baseline CDASIv2-Activity score as independent variables. Subject was modeled as a random effect, when applicable.
    Comparison groups
    IMO-8400 (0.6 mg/kg) v Placebo
    Number of subjects included in analysis
    20
    Analysis specification
    Pre-specified
    Analysis type
    superiority [1]
    P-value
    = 0.415 [2]
    Method
    Bonferroni-Holm step-down method
    Parameter type
    Least squares mean difference
    Point estimate
    -0.7
    Confidence interval
         level
    90%
         sides
    2-sided
         lower limit
    -6.14
         upper limit
    4.75
    Notes
    [1] - A one-sided test was performed with alpha set at 0.05. The overall alpha level was controlled at 0.05 one-sided using the Bonferroni-Holm step-down method.
    [2] - Pairwise contrasts of the least squares means was performed between each IMO-8400 treatment group vs placebo. One sided p-values were reported for each hypothesis test. The P-value compares placebo vs. 0.6 mg/kg across all visits.
    Statistical analysis title
    mCDASIv2-Activity Score (1.8 mg/kg)
    Statistical analysis description
    The primary efficacy analysis was a repeated measures mixed model analysis (RMMM) of mCDASIv2-Activity score across all visits; a one-sided test was performed with alpha set at 0.05. The RMMM used the mCDASIv2-Activity score as dependent variable and treatment group, visit week, treatment group by time interaction, and baseline CDASIv2-Activity score as independent variables. Subject was modeled as a random effect, when applicable.
    Comparison groups
    Placebo v IMO-8400 (1.8 mg/kg)
    Number of subjects included in analysis
    21
    Analysis specification
    Pre-specified
    Analysis type
    superiority [3]
    P-value
    = 0.155 [4]
    Method
    Bonferroni-Holm step-down method
    Parameter type
    Least squares mean difference
    Point estimate
    -3.1
    Confidence interval
         level
    90%
         sides
    2-sided
         lower limit
    -8.28
         upper limit
    2.03
    Notes
    [3] - A one-sided test was performed with alpha set at 0.05. The overall alpha level was controlled at 0.05 one-sided using the Bonferroni-Holm step-down method.
    [4] - Pairwise contrasts of the least squares means was performed between each IMO-8400 treatment group vs placebo. One sided p-values were reported for each hypothesis test. The P-value compares placebo vs. 1.8 mg/kg across all visits.

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    At each study visit, patients were evaluated for new AEs and the status of existing AEs. All AEs from the time the informed consent was signed through the EOS Visit 27/Week 29 were recorded on the eCRF.
    Adverse event reporting additional description
    Treatment-emergent advrerse ents are presented.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    18.0
    Reporting groups
    Reporting group title
    Placebo
    Reporting group description
    Once weekly SC injections of placebo (Sterile Saline for Injection, USP/EP) for 24 weeks.

    Reporting group title
    IMO-8400 (0.6 mg/kg)
    Reporting group description
    Once weekly SC injections of IMO-8400 at 0.6 mg/kg for 24 weeks.

    Reporting group title
    IMO-8400 (1.8 mg/kg)
    Reporting group description
    Once weekly SC injections of IMO-8400 at 1.8 mg/kg for 24 weeks.

    Serious adverse events
    Placebo IMO-8400 (0.6 mg/kg) IMO-8400 (1.8 mg/kg)
    Total subjects affected by serious adverse events
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         number of deaths (all causes)
    0
    0
    0
         number of deaths resulting from adverse events
    0
    0
    0
    Injury, poisoning and procedural complications
    Wrist fracture
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    Placebo IMO-8400 (0.6 mg/kg) IMO-8400 (1.8 mg/kg)
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    11 / 11 (100.00%)
    9 / 9 (100.00%)
    10 / 10 (100.00%)
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Benign bone neoplasm
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Vascular disorders
    Hot flush
         subjects affected / exposed
    1 / 11 (9.09%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    1
    1
    0
    Flushing
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    General disorders and administration site conditions
    Injection site erythema
         subjects affected / exposed
    1 / 11 (9.09%)
    7 / 9 (77.78%)
    10 / 10 (100.00%)
         occurrences all number
    1
    22
    74
    Injection site pain
         subjects affected / exposed
    0 / 11 (0.00%)
    6 / 9 (66.67%)
    7 / 10 (70.00%)
         occurrences all number
    0
    36
    71
    Injection site induration
         subjects affected / exposed
    0 / 11 (0.00%)
    5 / 9 (55.56%)
    5 / 10 (50.00%)
         occurrences all number
    0
    9
    10
    Injection site pruritus
         subjects affected / exposed
    0 / 11 (0.00%)
    3 / 9 (33.33%)
    5 / 10 (50.00%)
         occurrences all number
    0
    8
    30
    Injection site bruising
         subjects affected / exposed
    0 / 11 (0.00%)
    2 / 9 (22.22%)
    4 / 10 (40.00%)
         occurrences all number
    0
    2
    9
    Fatigue
         subjects affected / exposed
    0 / 11 (0.00%)
    3 / 9 (33.33%)
    2 / 10 (20.00%)
         occurrences all number
    0
    3
    2
    Injection site vesicles
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    3 / 10 (30.00%)
         occurrences all number
    0
    0
    4
    Injection site haematoma
         subjects affected / exposed
    1 / 11 (9.09%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    1
    1
    0
    Injection site rash
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    2 / 10 (20.00%)
         occurrences all number
    0
    0
    22
    Malaise
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    1 / 10 (10.00%)
         occurrences all number
    0
    1
    3
    Application site alopecia
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Asthenia
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Chest pain
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Feeling hot
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Influenza like illness
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    4
    0
    Injection site discolouration
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    2
    0
    Injection site exfoliation
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Injection site haemorrhage
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Injection site swelling
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    3
    Non-cardiac chest pain
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Oedema peripheral
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Pyrexia
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Respiratory, thoracic and mediastinal disorders
    Oropharyngeal pain
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    1 / 10 (10.00%)
         occurrences all number
    0
    2
    1
    Cough
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Dyspnoea
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Nasal congestion
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Throat lesion
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Psychiatric disorders
    Insomnia
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    2 / 10 (20.00%)
         occurrences all number
    0
    0
    3
    Anxiety
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    4
    0
    Anxiety disorder
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Psychosomatic disease
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Investigations
    Complement factor C3 decreased
         subjects affected / exposed
    0 / 11 (0.00%)
    2 / 9 (22.22%)
    1 / 10 (10.00%)
         occurrences all number
    0
    2
    1
    Anti-platelet antibody positive
         subjects affected / exposed
    0 / 11 (0.00%)
    2 / 9 (22.22%)
    0 / 10 (0.00%)
         occurrences all number
    0
    5
    0
    Weight increased
         subjects affected / exposed
    0 / 11 (0.00%)
    2 / 9 (22.22%)
    0 / 10 (0.00%)
         occurrences all number
    0
    2
    0
    Aspartate aminotransferase increased
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Blood creatine phosphokinase increased
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Double stranded DNA antibody positive
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Monocyte count increased
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Neutrophil count decreased
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Urine leukocyte esterase positive
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Weight decreased
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    White blood cell count decreased
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Injury, poisoning and procedural complications
    Contusion
         subjects affected / exposed
    2 / 11 (18.18%)
    0 / 9 (0.00%)
    2 / 10 (20.00%)
         occurrences all number
    4
    0
    2
    Fall
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Meniscus injury
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Muscle strain
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Nervous system disorders
    Headache
         subjects affected / exposed
    1 / 11 (9.09%)
    2 / 9 (22.22%)
    3 / 10 (30.00%)
         occurrences all number
    2
    2
    4
    Dizziness
         subjects affected / exposed
    2 / 11 (18.18%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    2
    0
    1
    Hypoaesthesia
         subjects affected / exposed
    1 / 11 (9.09%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    1
    1
    0
    Burning sensation
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Head discomfort
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    2
    Hypersomnia
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Migraine
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Neuropathy peripheral
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Syncope
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Blood and lymphatic system disorders
    Leukocytosis
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Thrombocytopenia
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    4
    Eye disorders
    Vision blurred
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Gastrointestinal disorders
    Diarrhoea
         subjects affected / exposed
    2 / 11 (18.18%)
    0 / 9 (0.00%)
    2 / 10 (20.00%)
         occurrences all number
    4
    0
    2
    Nausea
         subjects affected / exposed
    1 / 11 (9.09%)
    1 / 9 (11.11%)
    2 / 10 (20.00%)
         occurrences all number
    1
    1
    2
    Abdominal discomfort
         subjects affected / exposed
    1 / 11 (9.09%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    1
    1
    0
    Abdominal pain upper
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    1 / 10 (10.00%)
         occurrences all number
    0
    1
    3
    Abdominal distension
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Constipation
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Faeces soft
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Gastrooesophageal reflux disease
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Large intestine polyp
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Vomiting
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    3
    0
    0
    Skin and subcutaneous tissue disorders
    Pruritus
         subjects affected / exposed
    2 / 11 (18.18%)
    2 / 9 (22.22%)
    2 / 10 (20.00%)
         occurrences all number
    2
    2
    2
    Dermatomyositis
         subjects affected / exposed
    2 / 11 (18.18%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    3
    0
    1
    Rash
         subjects affected / exposed
    1 / 11 (9.09%)
    1 / 9 (11.11%)
    2 / 10 (20.00%)
         occurrences all number
    1
    1
    2
    Alopecia
         subjects affected / exposed
    0 / 11 (0.00%)
    2 / 9 (22.22%)
    0 / 10 (0.00%)
         occurrences all number
    0
    2
    0
    Erythema
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    2 / 10 (20.00%)
         occurrences all number
    0
    0
    2
    Rash erythematous
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    1
    0
    1
    Urticaria
         subjects affected / exposed
    0 / 11 (0.00%)
    2 / 9 (22.22%)
    0 / 10 (0.00%)
         occurrences all number
    0
    2
    0
    Dermal cyst
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Hyperhidrosis
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Skin fissures
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Renal and urinary disorders
    Nephrolithiasis
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Nocturia
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Musculoskeletal and connective tissue disorders
    Muscular weakness
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    1
    0
    1
    Musculoskeletal chest pain
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    1
    0
    1
    Myalgia
         subjects affected / exposed
    1 / 11 (9.09%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    1
    1
    0
    Antisynthetase syndrome
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Osteoporosis
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Pain in extremity
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Plantar fasciitis
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Temporomandibular joint syndrome
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Infections and infestations
    Upper respiratory tract infection
         subjects affected / exposed
    1 / 11 (9.09%)
    3 / 9 (33.33%)
    2 / 10 (20.00%)
         occurrences all number
    1
    6
    2
    Urinary tract infection
         subjects affected / exposed
    1 / 11 (9.09%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    1
    3
    0
    Cystitis
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Ear infection
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Gastroenteritis viral
         subjects affected / exposed
    0 / 11 (0.00%)
    1 / 9 (11.11%)
    0 / 10 (0.00%)
         occurrences all number
    0
    1
    0
    Genital herpes simplex
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Nasopharyngitis
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Parotitis
         subjects affected / exposed
    1 / 11 (9.09%)
    0 / 9 (0.00%)
    0 / 10 (0.00%)
         occurrences all number
    1
    0
    0
    Metabolism and nutrition disorders
    Abnormal loss of weight
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1
    Decreased appetite
         subjects affected / exposed
    0 / 11 (0.00%)
    0 / 9 (0.00%)
    1 / 10 (10.00%)
         occurrences all number
    0
    0
    1

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    22 Jul 2015
    The protocol was updated per requests from Food and Drug Administration (FDA) to state that any serious adverse events assessed as possibly or probably related to study drug would automatically require withdrawal of study drug.
    26 Aug 2015
    The protocol was updated per requests from the Institutional Review Board/Independent Ethics Committee. These updates included a change made to ensure study objectives are clearly associated with measurable study endpoints, clarification of the use of the CDASIv2 tool at specific study visits, clarification of study duration, clarification to PD assessments, change made to define the pharmacokinetic (PK) analysis population and clarification of time and extent of PK sampling, clarification that patients who do not meet eligibility criteria at the Screening Visit (Visit 1) may have screening procedures performed during the screening period and/or be rescreened, change made to focus the required cancer screening procedures on the patient population at the highest risk for DM-associated cancer, change made to add kidney disease as an exclusionary condition and to clarify that some pre-existing conditions do not require exclusion of the patient as long as the disease is considered controlled.
    29 Feb 2016
    The protocol was updated to reflect changes based on additional dose interruption criteria, updated dose cohorts, and operational considerations. These changes included testing only the 0.6 mg/kg dose cohort of IMO-8400 compared to placebo, updating statistical analyses to assess if patient demographics or different baseline DM disease characteristics independently affected clinical measurements, updating statistical analysis to be in line with updated dose cohorts, changes to inclusion criteria to include patients taking intravenous immunoglobulin, DM patients who did not meet criteria of Bohan and Peter exactly, and to minimize radiation exposure and clarify RB testing procedures and additional administrative, technical and procedural clarifications.
    25 May 2016
    The protocol was updated per requests from FDA review. These changes included to test the 0.6 and 1.8 mg/kg dose cohorts of IMO-8400 compared with placebo in a 1:1:1 ratio, updating statistical analyses to be in line with updated dose cohorts, changes made to update dose rationale with safety data available from completed and ongoing studies of IMO-8400 and additional administrative, technical, and procedural clarifications.
    27 Jan 2017
    The protocol was updated based on Investigator feedback and operational considerations. These changes included adding benefits and risks assessment of IMO-8400, updates to inclusion/exclusion criteria, allowance of facial photography, and additional administrative, technical, and procedural clarifications.

    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
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