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    Clinical Trial Results:
    An Open-Label Extension Study to Evaluate the Long-Term Effects of ACE-536 for the Treatment of Anemia in Patients with Low or Intermediate-1 Risk Myelodysplastic Syndromes (MDS) Previously Enrolled in Study A536-03

    Summary
    EudraCT number
    2014-001280-13
    Trial protocol
    DE  
    Global end of trial date
    19 Mar 2020

    Results information
    Results version number
    v1(current)
    This version publication date
    04 Apr 2021
    First version publication date
    04 Apr 2021
    Other versions
    Summary report(s)
    A536-05 synopsis

    Trial information

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    Trial identification
    Sponsor protocol code
    A536-05
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT02268383
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Acceleron Pharma Inc.
    Sponsor organisation address
    28 Sidney Street,, Cambridge, United States, 02139
    Public contact
    Mark Turnak , Acceleron Pharma Inc., +1 617 301 9516 , mturnak@acceleronpharma.com
    Scientific contact
    Mark Turnak, Sr. Director Medical Affairs , Acceleron Pharma Inc., +1 617 301 9516 , mturnak@acceleronpharma.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
    19 Mar 2020
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    19 Mar 2020
    Global end of trial reached?
    Yes
    Global end of trial date
    19 Mar 2020
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    To evaluate the long-term safety and tolerability of ACE-536 in patients with low or intermediate-1 risk MDS who were previously enrolled in study A536-03.
    Protection of trial subjects
    The trial was conducted under the principles of Good Clinical Practice, including human subject protection. No specific measures were warranted beyond the aforementioned and standard of care.
    Background therapy
    NA
    Evidence for comparator
    NA
    Actual start date of recruitment
    09 Oct 2014
    Long term follow-up planned
    No
    Independent data monitoring committee (IDMC) involvement?
    No
    Population of trial subjects
    Number of subjects enrolled per country
    Country: Number of subjects enrolled
    Germany: 75
    Worldwide total number of subjects
    75
    EEA total number of subjects
    75
    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)
    17
    From 65 to 84 years
    54
    85 years and over
    4

    Subject disposition

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    Recruitment
    Recruitment details
    A total of 75 of 116 subjects enrolled in Study A536-03 have continued on to the extension Study A536-05. Sixty-seven (89.3%) of these subjects rolled over directly into Study A536-05, and 8 (10.7%) subjects had a treatment interruption between Study A536-03 and Study A536-05 (subjects who completed the Study A536-03 EOS visit prior to C1D1).

    Pre-assignment
    Screening details
    Consenting subjects who met the Study A536-05 eligibility criteria immediately rolled over from Study A536-03 to Study A536-05 following the last luspatercept dose. These subjects did not undergo the Post-treatment Follow-up (PTFU) and End of Study (EOS) visit in Study A536-03 but instead were initiated immediately into the extension study A536-05.

    Period 1
    Period 1 title
    Overall trial (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Not applicable
    Blinding used
    Not blinded
    Blinding implementation details
    N/A

    Arms
    Arm title
    ITT population
    Arm description
    Luspatercept administered by subcutaneous injection (SC) at 0.5, 0.75, 1.0, 1.33, or 1.75 mg/kg once every 3 weeks
    Arm type
    Experimental

    Investigational medicinal product name
    ACE-536
    Investigational medicinal product code
    Other name
    Luspatercept
    Pharmaceutical forms
    Injection
    Routes of administration
    Subcutaneous use
    Dosage and administration details
    Luspatercept was administered by subcutaneous injection at 0.5, 0.75, 1.0, 1.33, or 1.75 mg/kg on C1D1. No more than 4 injections were administered per dose. Subsequent doses will be administered every 3 weeks on Day 1 of the cycle for up to 87 cycles. The last dose of luspatercept may not be administered after 87 cycles or 1825 calendar days from C1D1, whichever occurs first. Subjects received the dose level of luspatercept that they were assigned at study entry unless a dose modification was required.

    Number of subjects in period 1
    ITT population
    Started
    75
    Completed
    14
    Not completed
    61
         Presence of >1% blast peripheral blood
    1
         Death
    12
         Study terminated by sponsor
    22
         other
    12
         Lost to follow-up
    2
         Protocol deviation
    3
         Withdrawal by subject
    9

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Overall trial
    Reporting group description
    -

    Reporting group values
    Overall trial Total
    Number of subjects
    75 75
    Age categorical
    Units: Subjects
        Adults (18-64 years)
    17 17
        From 65-84 years
    54 54
        85 years and over
    4 4
    Age continuous
    Units: years
        arithmetic mean (full range (min-max))
    70.9 (29 to 90) -
    Gender categorical
    Units: Subjects
        Female
    50 50
        Male
    25 25
    Ethnicity
    Units: Subjects
        Hispanic or Latino
    0 0
        Not Hispanic or Latino
    67 67
        Not Reported
    7 7
        Unknown
    1 1
    Race
    Units: Subjects
        American Indian or Alaska Native
    0
        Asian
    0
        Black or African American
    0
        White
    75 75
        Other
    0
    Subject analysis sets

    Subject analysis set title
    Low-Transfusion Burden
    Subject analysis set type
    Intention-to-treat
    Subject analysis set description
    All treated patients who are Low Transfusion Burden (LTB) at Baseline. LTB subjects are defined as those who received < 4 units of RBCs within 8 weeks prior to Cycle 1 Day 1

    Subject analysis set title
    High-Transfusion Burden
    Subject analysis set type
    Intention-to-treat
    Subject analysis set description
    All treated patients who are High-Transfusion Burden (HTB) at baseline. HTB subjects are defined as those who required 4 or more units of RBC transfusions within 8 weeks prior to Cycle 1 Day 1 (-55 <= day <= 1)..

    Subject analysis set title
    Total
    Subject analysis set type
    Intention-to-treat
    Subject analysis set description
    All subjects who received at least 1 dose of luspatercept.

    Subject analysis sets values
    Low-Transfusion Burden High-Transfusion Burden Total
    Number of subjects
    50
    25
    75
    Age categorical
    Units: Subjects
        Adults (18-64 years)
    12
    5
    17
        From 65-84 years
    34
    20
    54
        85 years and over
    4
    0
    4
    Age continuous
    Units: years
        arithmetic mean (full range (min-max))
    71.8 (30 to 90)
    69.1 (29 to 79)
    70.9 (29 to 90)
    Gender categorical
    Units: Subjects
        Female
    18
    7
    25
        Male
    32
    18
    50
    Ethnicity
    Units: Subjects
        Hispanic or Latino
    0
    0
    0
        Not Hispanic or Latino
    47
    20
    67
        Not Reported
    2
    5
    7
        Unknown
    1
    0
    1
    Race
    Units: Subjects
        American Indian or Alaska Native
    0
    0
    0
        Asian
    0
    0
    0
        Black or African American
    0
    0
    0
        White
    50
    25
    75
        Other
    0
    0
    0

    End points

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    End points reporting groups
    Reporting group title
    ITT population
    Reporting group description
    Luspatercept administered by subcutaneous injection (SC) at 0.5, 0.75, 1.0, 1.33, or 1.75 mg/kg once every 3 weeks

    Subject analysis set title
    Low-Transfusion Burden
    Subject analysis set type
    Intention-to-treat
    Subject analysis set description
    All treated patients who are Low Transfusion Burden (LTB) at Baseline. LTB subjects are defined as those who received < 4 units of RBCs within 8 weeks prior to Cycle 1 Day 1

    Subject analysis set title
    High-Transfusion Burden
    Subject analysis set type
    Intention-to-treat
    Subject analysis set description
    All treated patients who are High-Transfusion Burden (HTB) at baseline. HTB subjects are defined as those who required 4 or more units of RBC transfusions within 8 weeks prior to Cycle 1 Day 1 (-55 <= day <= 1)..

    Subject analysis set title
    Total
    Subject analysis set type
    Intention-to-treat
    Subject analysis set description
    All subjects who received at least 1 dose of luspatercept.

    Primary: Hemoglobin Response (ITT, LTB)

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    End point title
    Hemoglobin Response (ITT, LTB) [1]
    End point description
    Hemoglobin Response is defined as patients with all hemoglobin value from baseline during any rolling 8-week period were increased >= 1.5 g/dL in the absence of transfusion.
    End point type
    Primary
    End point timeframe
    Rolling 8 Weeks Rolling 8 weeks is defined as any consecutive 8 weeks during the study.
    Notes
    [1] - No statistical analyses have been specified for this primary end point. It is expected there is at least one statistical analysis for each primary end point.
    Justification: The response rate for each dose group is reported in earlier section of the EUDRACT results posting . However per protocol no statistical testing is performed to compare the dose groups, consequently no p-value is reported in this section.
    End point values
    Low-Transfusion Burden Total
    Number of subjects analysed
    50
    25
    Units: percent
        number (confidence interval 95%)
    66 (51.2 to 78.8)
    66 (51.2 to 78.8)
    No statistical analyses for this end point

    Secondary: Reduction in Transfusion Burden (ITT, HTB)

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    End point title
    Reduction in Transfusion Burden (ITT, HTB)
    End point description
    Change in Transfusion Burden in High Transfusion Burden Subjects RBC Reduction ≥ 4 units or 50% Reduction during Rolling 8 Weeks
    End point type
    Secondary
    End point timeframe
    Rolling 8 Weeks Rolling 8 weeks is defined as any consecutive 8 weeks during the study.
    End point values
    High-Transfusion Burden Total
    Number of subjects analysed
    25
    25
    Units: percent
        number (confidence interval 95%)
    84 (59.3 to 93.2)
    84 (59.3 to 93.2)
    No statistical analyses for this end point

    Secondary: Erythroid Response

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    End point title
    Erythroid Response
    End point description
    Defined as the proportion of subjects for whom the mean of all Hgb values from baseline during any rolling 8-week period increased ≥ 1.5 g/dL in the absence of transfusion for LTB subjects, or a reduction by ≥ 4 units or ≥ 50% of units of RBCs transfused over any rolling 8-week interval for HTB subject
    End point type
    Secondary
    End point timeframe
    Any rolling 8 week window on treatment compared with baseline. Rolling 8 weeks is defined as any consecutive 8 weeks
    End point values
    ITT population Low-Transfusion Burden High-Transfusion Burden Total
    Number of subjects analysed
    75
    50
    25
    75
    Units: percent
        arithmetic mean (confidence interval 95%)
    81.3 (77.7 to 89.4)
    80 (66.3 to 90.0)
    84 (63.9 to 95.5)
    81.3 (70.7 to 89.4)
    No statistical analyses for this end point

    Secondary: Neutrophil Response (ITT, HI-N Evaluable)

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    End point title
    Neutrophil Response (ITT, HI-N Evaluable)
    End point description
    Defined for subjects with baseline neutrophil count (absolute neutrophil count) < 1.0 x 10^9/L as subjects with a mean percentage increase ≥ 100% and an absolute mean increase > 0.5 x 10^9/L Response was defined as all records of neutrophil increase of ≥ 100% and an absolute increase of > 0.5
    End point type
    Secondary
    End point timeframe
    During any rolling 8-week window on treatment compared with baseline. Rolling 8 weeks is defined as any consecutive 8 weeks during the study.
    End point values
    ITT population
    Number of subjects analysed
    14
    Units: percent
        arithmetic mean (confidence interval 95%)
    50 (23.0 to 77.0)
    No statistical analyses for this end point

    Secondary: Reticulocytes (ITT)

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    End point title
    Reticulocytes (ITT)
    End point description
    End of Treatment, % Change From Baseline,
    End point type
    Secondary
    End point timeframe
    Baseline to end of treatment. Baseline is the last observation on or prior to Cycle 1 Day 1.
    End point values
    ITT population Total
    Number of subjects analysed
    47
    47
    Units: 10 to 9th power/L
        arithmetic mean (standard deviation)
    31.0 ± 67.8
    31.0 ± 67.8
    No statistical analyses for this end point

    Secondary: Direct Bilirubin

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    End point title
    Direct Bilirubin
    End point description
    End of Treatment, % Change From Baseline
    End point type
    Secondary
    End point timeframe
    Baseline to end of treatment. Baseline is the last observation on or prior to Cycle 1 Day 1.
    End point values
    ITT population
    Number of subjects analysed
    75
    Units: µmol/L
        arithmetic mean (standard deviation)
    6.10 ± 23.677
    No statistical analyses for this end point

    Secondary: Lactate Dehydrogenase

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    End point title
    Lactate Dehydrogenase
    End point description
    End of Treatment, % Change From Baseline
    End point type
    Secondary
    End point timeframe
    Baseline to end of treatment. Baseline is the last observation on or prior to Cycle 1 Day 1.
    End point values
    ITT population
    Number of subjects analysed
    55
    Units: U/L
        arithmetic mean (standard deviation)
    43.78 ± 88.343
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    Adverse Events collected from first dose to end of study
    Adverse event reporting additional description
    Non-Serious Adverse Events reported in ≥ 5% of subjects overall are shown.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    20.0
    Reporting groups
    Reporting group title
    ITT Population
    Reporting group description
    -

    Serious adverse events
    ITT Population
    Total subjects affected by serious adverse events
         subjects affected / exposed
    58 / 75 (77.33%)
         number of deaths (all causes)
    13
         number of deaths resulting from adverse events
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Transformation to acute myeloid leukaemia
         subjects affected / exposed
    5 / 75 (6.67%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Myelodysplastic syndrome
         subjects affected / exposed
    4 / 75 (5.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Basal cell carcinoma
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Squamous cell carcinoma
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Bronchial carcinoma
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Leukaemia monocytic
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hepatic cancer
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Non-small cell lung cancer
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Prostate cancer
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Renal cell carcinoma
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Vascular disorders
    Aortic stenosis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hypertension
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hypertensive crisis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Peripheral arterial occlusive disease
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Arteritis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    General disorders and administration site conditions
    General physical health deterioration
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Asthenia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Fatigue
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Gait disturbance
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pyrexia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Sudden death
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Vessel puncture site haematoma
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Immune system disorders
    Autoinflammatory disease
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Reproductive system and breast disorders
    Prostatic obstruction
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Respiratory, thoracic and mediastinal disorders
    Pulmonary embolism
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Pulmonary congestion
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pulmonary fibrosis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Psychiatric disorders
    Hallucination
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Injury, poisoning and procedural complications
    Femur fracture
         subjects affected / exposed
    3 / 75 (4.00%)
         occurrences causally related to treatment / all
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    Contusion
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Lumbar vertebral fracture
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Bone contusion
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Compression fracture
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Fall
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hip fracture
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Meniscus injury
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Tendon rupture
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cardiac disorders
    Cardiac failure
         subjects affected / exposed
    4 / 75 (5.33%)
         occurrences causally related to treatment / all
    0 / 4
         deaths causally related to treatment / all
    0 / 0
    Acute myocardial infarction
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Atrial fibrillation
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Cardiac failure chronic
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Sinus node dysfunction
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Aortic valve stenosis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cardiac failure acute
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Myocardial infarction
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Nervous system disorders
    Syncope
         subjects affected / exposed
    4 / 75 (5.33%)
         occurrences causally related to treatment / all
    0 / 4
         deaths causally related to treatment / all
    0 / 0
    Normal pressure hydrocephalus
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Ataxia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Encephalopathy
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Sciatica
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Transient ischaemic attack
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Blood and lymphatic system disorders
    Anaemia
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Febrile neutropenia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Ear and labyrinth disorders
    Vestibular disorder
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Eye disorders
    Keratitis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Papilloedema
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Retinal detachment
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Ulcerative keratitis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Vitreous haemorrhage
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hepatobiliary disorders
    Cholecystitis
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Renal and urinary disorders
    Nephrolithiasis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Musculoskeletal and connective tissue disorders
    Bursitis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Muscular weakness
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Musculoskeletal pain
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Osteitis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Infections and infestations
    Pneumonia
         subjects affected / exposed
    7 / 75 (9.33%)
         occurrences causally related to treatment / all
    0 / 7
         deaths causally related to treatment / all
    0 / 0
    Erysipelas
         subjects affected / exposed
    4 / 75 (5.33%)
         occurrences causally related to treatment / all
    0 / 4
         deaths causally related to treatment / all
    0 / 0
    Sepsis
         subjects affected / exposed
    4 / 75 (5.33%)
         occurrences causally related to treatment / all
    0 / 4
         deaths causally related to treatment / all
    0 / 0
    Urinary tract infection bacterial
         subjects affected / exposed
    3 / 75 (4.00%)
         occurrences causally related to treatment / all
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    Device related infection
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Atypical pneumonia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Campylobacter gastroenteritis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    Clostridium difficile infection
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Haematoma infection
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Infection
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Influenza
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Spondylitis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pneumocystis jirovecii pneumonia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Staphylococcal osteomyelitis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Metabolism and nutrition disorders
    Abscess
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Type 2 diabetes mellitus
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Diabetes mellitus
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    ITT Population
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    33 / 75 (44.00%)
    Vascular disorders
    Hypertension
         subjects affected / exposed
    5 / 75 (6.67%)
         occurrences all number
    5
    Hot flush
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Ascites
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    General disorders and administration site conditions
    Fatigue
         subjects affected / exposed
    4 / 75 (5.33%)
         occurrences all number
    4
    Oedema peripheral
         subjects affected / exposed
    3 / 75 (4.00%)
         occurrences all number
    1
    Injection site erythema
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Adverse drug reaction
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Chest discomfort
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Injection site pain
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Injection site pruritus
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Injection site reaction
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Injection site swelling
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Injection site warmth
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Injection site inflammation
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Respiratory, thoracic and mediastinal disorders
    Epistaxis
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences all number
    2
    Dysphonia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Oropharyngeal pain
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Investigations
    Blood bilirubin increased
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences all number
    2
    C-reactive protein increased
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Platelet count increased
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Rash maculo-papular
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Rash pruritic
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Cardiac disorders
    Supraventricular extrasystoles
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Tachycardia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Nervous system disorders
    Headache
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences all number
    2
    Dizziness
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences all number
    2
    Hypotonia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Peripheral sensorimotor neuropathy
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Blood and lymphatic system disorders
    White blood cell count increased
    Additional description: leucocytosis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Splenomegaly
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Thrombocytopenia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Thrombocytosis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Ear and labyrinth disorders
    Vertigo
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Eye disorders
    eye oed
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Gastrointestinal disorders
    Diarrhoea
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences all number
    2
    Nausea
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Skin and subcutaneous tissue disorders
    Alopecia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Rash
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Renal and urinary disorders
    Pollakiuria
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Musculoskeletal and connective tissue disorders
    Arthralgia
         subjects affected / exposed
    4 / 75 (5.33%)
         occurrences all number
    4
    Bone pain
         subjects affected / exposed
    3 / 75 (4.00%)
         occurrences all number
    3
    Musculoskeletal pain
         subjects affected / exposed
    2 / 75 (2.67%)
         occurrences all number
    2
    Bursitis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Muscular weakness
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Myalgia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Neck pain
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Pain in extremity
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Infections and infestations
    Angular cheilitis
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Metabolism and nutrition disorders
    Abnormal loss of weight
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Hyperglycaemia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    1
    Hyperkalaemia
         subjects affected / exposed
    1 / 75 (1.33%)
         occurrences all number
    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
    Addition of ability to include other QOL tools to evaluate patient outcomes. The study has been extended by an additional year in order to obtain longer-term safety and efficacy data. Increased total patient numbers due to increase in the number of patients planned to enroll into the base study A536-03. Starting does updated to 1.0 mg/kg. Updated the maximum dose titration not to exceed 1.75 mg/kg. Schedule of Events Table updated table to allow for treatment period of 24 months. Day 8 visits removed to simplify schedule to Q3W visits.
    05 Jul 2016
    Number of study centers increased to facilitate enrollment. The study has been extended to up to five years of treatment in order to obtain longer-term safety and efficacy data. Additional dose modification rule added to ensure patients are not showing signs of disease progression. Number of cycles increased to reflect study extension up to five years of treatment. Iron chelation therapy is allowed to be initiated during the study if required per standard of care.
    05 Jul 2017
    Medical Monitor information updated. Total number of patients increased to reflect addition of expansion cohort 3 to Study A536-03. Study design updated to indicate that only patients without treatment interruption for expansion cohorts 2 and 3 are eligible for the A536-05 study unless otherwise approved by sponsor. Updated additional monitoring of adverse events of special interest and extension of survival follow-up to 3 years. Additional dose modification rule added to ensure patients are not showing signs of disease progression.
    06 Mar 2018
    Synopsis Efficacy Assesments updated NTBI data not being used as part of analysis. Disease progression table added for reference, from Cheson, et al. Blood 2006.
    29 Mar 2019
    Dosage, and mode of administration updated to allow for the use of vials containing either 25 mg, 50 mg, or 75 mg of lyophilized ACE-536.

    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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