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    Clinical Trial Results:
    A PHASE II STUDY TO EVALUATE THE SAFETY, TOLERABILITY, EFFICACY AND PHARMACOKINETICS OF INTRAVENOUS ASCENDING DOSES OF IDES IN KIDNEY TRANSPLANTATION

    Summary
    EudraCT number
    2014-000712-34
    Trial protocol
    SE  
    Global end of trial date
    13 Oct 2016

    Results information
    Results version number
    v1(current)
    This version publication date
    28 Oct 2017
    First version publication date
    28 Oct 2017
    Other versions

    Trial information

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    Trial identification
    Sponsor protocol code
    13-HMedIdeS-03
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT02475551
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    Hansa Medical AB
    Sponsor organisation address
    Scheelevägen 22, Lund, Sweden, 22007
    Public contact
    Hansa Medical AB, Hansa Medical AB, +46 768581506,
    Scientific contact
    Hansa Medical AB, Hansa Medical AB, +46 768581506,
    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
    22 Nov 2016
    Is this the analysis of the primary completion data?
    Yes
    Primary completion date
    13 Oct 2016
    Global end of trial reached?
    Yes
    Global end of trial date
    13 Oct 2016
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    To study the safety and tolerability of IdeS in renal transplantation
    Protection of trial subjects
    To secure the safety of the patients, a cautious approach was chosen, employing staggered dosing with at least 7 days between patients within a dose group and at least 14 days between dosing of the first patient in a higher dose group and dosing of the last patient in the previous dose group. The requirement for staggered dosing within dose groups was removed (in protocol amendment 3) when a sufficient amount of safety data was available to assess that it was no longer necessary. In addition, increase to a higher dose group was controlled by the DMC that evaluated all safety data prior to each dose escalation. No placebo group was included in the study since it could not be ethically justified to randomise patients with DSAs to placebo treatment. The presence of DSAs is a contraindication to transplantation due to the high risk of hyperacute and acute AMR.
    Background therapy
    Induction therapy was given according to clinical practice at each site. If anti-thymocyte globulin (ATG) was indicated, ATGAM® (equine ATG [eATG]) was given since rabbit ATG (rATG) is cleaved by IdeS. In addition to the medication that was administered as standard of care of kidney transplant patients, the following medication was required according to protocol: Premedication: In order to prevent an anaphylactic reaction due to infusion of a biological IMP, the patients received premedication with methylprednisolone sodium succinate (Solu-Medrol®) 250 mg i.v. and 10 mg oral loratadine before each IdeS infusion. Prophylactic Antibiotics: All patients received 1 g phenoxymethylpenicillin (Kåvepenin) once daily (OD) from the start of IdeS treatment until recovery of serum IgG level (>3 g/L) as antibiotic prophylaxis to prevent opportunistic infections due to low IgG levels. Standard of Care Medication The medication administered as standard of care of kidney transplant patients at the sites included; Prophylactic Antibiotics, Prophylaxis of Pneumocystis jirovecii, Viral Prophylaxis and Surveillance, and maintenance immunosuppression.
    Evidence for comparator
    -
    Actual start date of recruitment
    04 Jun 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
    Sweden: 10
    Worldwide total number of subjects
    10
    EEA total number of subjects
    10
    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)
    8
    From 65 to 84 years
    2
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    The study was conducted at 2 sites (departments of transplant surgery) in Sweden.

    Pre-assignment
    Screening details
    Screening of a patient could take place up to 28 days before first dosing on study day 0. If the patient met all inclusion and no exclusion criteria and was not dosed with IdeS within 28 days, for example because the patient did not receive an organ offer within this time frame, the patient could be re-screened. 12 patients screened , 10 enrolled.

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

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    First dose group
    Arm description
    Patients in the first dose group received one intravenous (i.v.) dose of 0.25 mg/kg IdeS over 15 minutes.
    Arm type
    Experimental

    Investigational medicinal product name
    HMED-IdeS
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Concentrate for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    One intravenous (i.v.) dose of 0.25 mg/kg over 15 minutes.

    Arm title
    Second dose group
    Arm description
    The second dose group received one dose of 0.50 mg/kg after evaluation of the safety and efficacy in the first group.
    Arm type
    Experimental

    Investigational medicinal product name
    HMED-IdeS
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Concentrate for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    One intravenous (i.v.) dose of 0.50 mg/kg ideS over 15 minutes.

    Number of subjects in period 1
    First dose group Second dose group
    Started
    5
    5
    Completed
    5
    5

    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
    10 10
    Age categorical
    Units: Subjects
        In utero
    0 0
        Preterm newborn infants (gestational age < 37 wks)
    0 0
        Newborns (0-27 days)
    0 0
        Infants and toddlers (28 days-23 months)
    0 0
        Children (2-11 years)
    0 0
        Adolescents (12-17 years)
    0 0
        Adults (18-64 years)
    8 8
        From 65-84 years
    2 2
        85 years and over
    0 0
    Age continuous
    Units: years
        arithmetic mean (standard deviation)
    51.6 ( 13.7 ) -
    Gender categorical
    Units: Subjects
        Female
    7 7
        Male
    3 3

    End points

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    End points reporting groups
    Reporting group title
    First dose group
    Reporting group description
    Patients in the first dose group received one intravenous (i.v.) dose of 0.25 mg/kg IdeS over 15 minutes.

    Reporting group title
    Second dose group
    Reporting group description
    The second dose group received one dose of 0.50 mg/kg after evaluation of the safety and efficacy in the first group.

    Primary: Safety parameters

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    End point title
    Safety parameters [1]
    End point description
    Number of adverse events reported in each treatment group.
    End point type
    Primary
    End point timeframe
    From day -1 and throughout the study including the follow-up period until day 180 ± 7 days
    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: No formal statistical analysis were performed in this study. All endpoints were presented using descriptive statistics, individual patient listings and graphs.
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: Number of Adverse Events
    52
    54
    No statistical analyses for this end point

    Secondary: Efficacy defined as the IdeS dosing scheme resulting in HLA antibody levels acceptable for transplantation within 24 hours from dosing

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    End point title
    Efficacy defined as the IdeS dosing scheme resulting in HLA antibody levels acceptable for transplantation within 24 hours from dosing
    End point description
    Number of patients with HLA antibody levels acceptable for transplantation within 24 hours from dosing with IdeS.
    End point type
    Secondary
    End point timeframe
    Within 24 hours from dosing with HMED-IdeS
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: Number of subjects
    5
    5
    No statistical analyses for this end point

    Secondary: Reduction of PRA levels in cytotoxic sera screen after IdeS treatment

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    End point title
    Reduction of PRA levels in cytotoxic sera screen after IdeS treatment
    End point description
    Number of patients who had a reduction of PRA levels up to 24 hours after dosing with IdeS. Data available only for 6 patients.
    End point type
    Secondary
    End point timeframe
    Within 24 hours from dosing with IdeS
    End point values
    First dose group Second dose group
    Number of subjects analysed
    3
    3
    Units: Number of subjects
    3
    3
    No statistical analyses for this end point

    Secondary: Result in FACS and cytotoxic crossmatch test after IdeS treatment

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    End point title
    Result in FACS and cytotoxic crossmatch test after IdeS treatment
    End point description
    Number of subjects crossmatch negative after IdeS treatment. Data available for 7 subjects as 3 missing post dose FACS and CDC CXM.
    End point type
    Secondary
    End point timeframe
    Post IdeS treatment (between 2 and 24 hours)
    End point values
    First dose group Second dose group
    Number of subjects analysed
    3
    4
    Units: Number of subjects
    3
    4
    No statistical analyses for this end point

    Secondary: Pharmacokinetic (PK) profile of IdeS, Cmax: peak drug concentration

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    End point title
    Pharmacokinetic (PK) profile of IdeS, Cmax: peak drug concentration
    End point description
    End point type
    Secondary
    End point timeframe
    Up to 24 hours after dosing with IdeS
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: μg/L
        arithmetic mean (standard deviation)
    5900 ( 1200 )
    9900 ( 890 )
    No statistical analyses for this end point

    Secondary: Immunogenicity of IdeS by measuring anti-drug antibodies

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    End point title
    Immunogenicity of IdeS by measuring anti-drug antibodies
    End point description
    The overall average (SD) level of anti-IdeS IgG (ADA), ImmunoCAP (mg/L) at day 180.
    End point type
    Secondary
    End point timeframe
    Day 180
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: mg/L
        arithmetic mean (standard deviation)
    140 ( 190 )
    120 ( 180 )
    No statistical analyses for this end point

    Secondary: Kidney function in patients who were transplanted

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    End point title
    Kidney function in patients who were transplanted
    End point description
    Number of subjects having functioning kidney, assessed by serum creatinine, eGFR and kidney biopsy at day 180.
    End point type
    Secondary
    End point timeframe
    Day 180
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: Number of subjects
    5
    5
    No statistical analyses for this end point

    Secondary: Pharmacokinetic (PK) profile of IdeS, Tmax: time to maximum serum concentration

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    End point title
    Pharmacokinetic (PK) profile of IdeS, Tmax: time to maximum serum concentration
    End point description
    End point type
    Secondary
    End point timeframe
    Up to 24 hours post dosing of IdeS
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: Hours
        arithmetic mean (standard deviation)
    0.70 ( 0.27 )
    0.29 ( 0.11 )
    No statistical analyses for this end point

    Secondary: Pharmacokinetic (PK) profile of IdeS, AUC: area under the plasma concentration-time curve

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    End point title
    Pharmacokinetic (PK) profile of IdeS, AUC: area under the plasma concentration-time curve
    End point description
    End point type
    Secondary
    End point timeframe
    From time 0 to infinity.
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: μg×h/L
        arithmetic mean (standard deviation)
    210000 ( 120000 )
    630000 ( 530000 )
    No statistical analyses for this end point

    Secondary: Pharmacokinetic (PK) profile of IdeS, t½: terminal half-life

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    End point title
    Pharmacokinetic (PK) profile of IdeS, t½: terminal half-life
    End point description
    Harmonic mean reported for t½ rather than arithmetic mean
    End point type
    Secondary
    End point timeframe
    During terminal phase of elimination.
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: Hours
        arithmetic mean (standard deviation)
    74 ( 16 )
    93 ( 50 )
    No statistical analyses for this end point

    Secondary: Pharmacokinetic (PK) profile of IdeS, Clearance

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    End point title
    Pharmacokinetic (PK) profile of IdeS, Clearance
    End point description
    End point type
    Secondary
    End point timeframe
    Up to day 21.
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: mL/h/kg
        arithmetic mean (standard deviation)
    1.7 ( 1.2 )
    1.2 ( 0.76 )
    No statistical analyses for this end point

    Secondary: Pharmacokinetic (PK) profile of IdeS, Vss: volume of distribution at steady state

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    End point title
    Pharmacokinetic (PK) profile of IdeS, Vss: volume of distribution at steady state
    End point description
    End point type
    Secondary
    End point timeframe
    Up to day 21.
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: L/kg
        arithmetic mean (standard deviation)
    0.12 ( 0.054 )
    0.13 ( 0.042 )
    No statistical analyses for this end point

    Secondary: Pharmacokinetic (PK) profile of IdeS, Vz: apparent volume of distribution

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    End point title
    Pharmacokinetic (PK) profile of IdeS, Vz: apparent volume of distribution
    End point description
    End point type
    Secondary
    End point timeframe
    Up to day 21.
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: L/kg
        arithmetic mean (standard deviation)
    0.17 ( 0.080 )
    0.16 ( 0.069 )
    No statistical analyses for this end point

    Secondary: Time to recovery of total serum IgG

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    End point title
    Time to recovery of total serum IgG
    End point description
    Time to 80% recovery of Immunoglobulin G
    End point type
    Secondary
    End point timeframe
    Up to day 180
    End point values
    First dose group Second dose group
    Number of subjects analysed
    2
    2
    Units: Days
        arithmetic mean (standard deviation)
    141 ( 26.9 )
    42.5 ( 29 )
    No statistical analyses for this end point

    Secondary: Time to recovery of total HLA-antibody

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    End point title
    Time to recovery of total HLA-antibody
    End point description
    Time to 80% recovery of SAB-HLA
    End point type
    Secondary
    End point timeframe
    Up to day 180
    End point values
    First dose group Second dose group
    Number of subjects analysed
    4
    5
    Units: Days
        arithmetic mean (standard deviation)
    87 ( 66 )
    23 ( 22 )
    No statistical analyses for this end point

    Secondary: Pharmacodynamic (PD) profile of IdeS (cleavage of IgG)

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    End point title
    Pharmacodynamic (PD) profile of IdeS (cleavage of IgG)
    End point description
    Mean IgG cleavage scores at 24 hours post dosing with IdeS. Summary of IgG cleavage scores: 0 = No intact IgG, scIgG or F(ab)2. 1 = F(ab)2. 2 = Mix of scIgG and F(ab)2. 3 = Only scIgG. 4 = Mix of intact IgG and scIgG. 5 = Only intact IgG.
    End point type
    Secondary
    End point timeframe
    24 hours post dosing with IdeS
    End point values
    First dose group Second dose group
    Number of subjects analysed
    5
    5
    Units: IgG cleavage scores
        arithmetic mean (standard deviation)
    1 ( 0 )
    1 ( 0 )
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    From day -1 and throughout the study including the follow-up period until day 180 ± 7 days
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    18.1
    Reporting groups
    Reporting group title
    0.25 mg/kg
    Reporting group description
    -

    Reporting group title
    0.50 mg/kg
    Reporting group description
    -

    Serious adverse events
    0.25 mg/kg 0.50 mg/kg
    Total subjects affected by serious adverse events
         subjects affected / exposed
    3 / 5 (60.00%)
    5 / 5 (100.00%)
         number of deaths (all causes)
    0
    0
         number of deaths resulting from adverse events
    0
    0
    Investigations
    Blood creatine increased
         subjects affected / exposed
    1 / 5 (20.00%)
    1 / 5 (20.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Donor specific antibody present
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Vascular disorders
    Lymphocele
         subjects affected / exposed
    1 / 5 (20.00%)
    1 / 5 (20.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Blood and lymphatic system disorders
    Leukopenia
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Immune system disorders
    Transplant rejection
         subjects affected / exposed
    0 / 5 (0.00%)
    3 / 5 (60.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Kidney transplant rejection
         subjects affected / exposed
    0 / 5 (0.00%)
    2 / 5 (40.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Hepatobiliary disorders
    Cholecystitis
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Cholelithiasis
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Renal and urinary disorders
    Renal artery stenosis
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Ureteric obstruction
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Infections and infestations
    Abdominal infection
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Catheter site infection
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Parvovirus infection
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Sepsis
         subjects affected / exposed
    1 / 5 (20.00%)
    2 / 5 (40.00%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Pneumonia
         subjects affected / exposed
    1 / 5 (20.00%)
    1 / 5 (20.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Infection
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Serratia infection
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Urinary tract infection
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Urosepsis
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 0%
    Non-serious adverse events
    0.25 mg/kg 0.50 mg/kg
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    5 / 5 (100.00%)
    5 / 5 (100.00%)
    Vascular disorders
    Lymphocele
         subjects affected / exposed
    1 / 5 (20.00%)
    2 / 5 (40.00%)
         occurrences all number
    1
    2
    Vena cava thrombosis
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    General disorders and administration site conditions
    Pain
         subjects affected / exposed
    1 / 5 (20.00%)
    1 / 5 (20.00%)
         occurrences all number
    1
    1
    Fatigue
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Pyrexia
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Immune system disorders
    Transplant rejection
         subjects affected / exposed
    0 / 5 (0.00%)
    4 / 5 (80.00%)
         occurrences all number
    0
    5
    Kidney transplant rejection
         subjects affected / exposed
    0 / 5 (0.00%)
    2 / 5 (40.00%)
         occurrences all number
    0
    2
    Respiratory, thoracic and mediastinal disorders
    Hydrothorax
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Psychiatric disorders
    Anxiety
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Insomnia
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Sleep disorder
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Investigations
    Blood creatine increased
         subjects affected / exposed
    1 / 5 (20.00%)
    2 / 5 (40.00%)
         occurrences all number
    1
    2
    Escherichia test positive
         subjects affected / exposed
    2 / 5 (40.00%)
    0 / 5 (0.00%)
         occurrences all number
    2
    0
    Neutrophil count increased
         subjects affected / exposed
    2 / 5 (40.00%)
    0 / 5 (0.00%)
         occurrences all number
    2
    0
    Alanine aminotransferase increased
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Blood alkaline phosphatase increased
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Blood triglycerides increased
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Donor specific antibody present
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Haematocrit increased
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Weight increased
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Injury, poisoning and procedural complications
    Post procedural haematoma
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Procedural pain
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Cardiac disorders
    Atrial fibrillation
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Sinus tachycardia
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Tachycardia
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Nervous system disorders
    Headache
         subjects affected / exposed
    2 / 5 (40.00%)
    1 / 5 (20.00%)
         occurrences all number
    2
    1
    Tremor
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Blood and lymphatic system disorders
    Anaemia
         subjects affected / exposed
    2 / 5 (40.00%)
    3 / 5 (60.00%)
         occurrences all number
    2
    3
    Leukopenia
         subjects affected / exposed
    0 / 5 (0.00%)
    2 / 5 (40.00%)
         occurrences all number
    0
    2
    Gastrointestinal disorders
    Diarrhoea
         subjects affected / exposed
    2 / 5 (40.00%)
    0 / 5 (0.00%)
         occurrences all number
    2
    0
    Gastritis
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Nausea
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Vomiting
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Hepatobiliary disorders
    Cholecystitis
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Cholelithiasis
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Skin and subcutaneous tissue disorders
    Rash
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Renal and urinary disorders
    Proteinuria
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Renal artery stenosis
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Ureteric obstruction
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Musculoskeletal and connective tissue disorders
    Osteoporosis
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    0
    0
    Infections and infestations
    Urinary tract infection
         subjects affected / exposed
    3 / 5 (60.00%)
    3 / 5 (60.00%)
         occurrences all number
    3
    7
    Sepsis
         subjects affected / exposed
    1 / 5 (20.00%)
    2 / 5 (40.00%)
         occurrences all number
    1
    2
    Candida infection
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    2
    Infection
         subjects affected / exposed
    0 / 5 (0.00%)
    2 / 5 (40.00%)
         occurrences all number
    0
    2
    Pneumonia
         subjects affected / exposed
    1 / 5 (20.00%)
    1 / 5 (20.00%)
         occurrences all number
    1
    1
    Abdominal infection
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Adenovirus infection
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    BK virus infection
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Catheter site infection
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Cytomegalovirus infection
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Cytomegalovirus viraemia
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Influenza
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Nasopharyngitis
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Parvovirus infection
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Postoperative wound infection
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Serratia infection
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Urosepsis
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Wound infection
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Metabolism and nutrition disorders
    Fluid overload
         subjects affected / exposed
    4 / 5 (80.00%)
    3 / 5 (60.00%)
         occurrences all number
    4
    3
    Diabetes mellitus
         subjects affected / exposed
    1 / 5 (20.00%)
    1 / 5 (20.00%)
         occurrences all number
    1
    1
    Decreased appetite
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Hyperglycaemia
         subjects affected / exposed
    0 / 5 (0.00%)
    1 / 5 (20.00%)
         occurrences all number
    0
    1
    Hyperkalaemia
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Hyperlipidaemia
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0
    Hypokalaemia
         subjects affected / exposed
    1 / 5 (20.00%)
    0 / 5 (0.00%)
         occurrences all number
    1
    0

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    01 Dec 2014
    Amendment 1, dated 26 Sep 2014 •Inclusion criterion number 3 was changed to allow inclusion of patients who were more highly sensitised. This was done because preliminary data from an ongoing phase II study showed high efficacy also on highly sensitised patients and one patient in that study had been transplanted with a good result. •Results in cytotoxic cross-match test were added to the secondary endpoints. • P-alkaline phosphatase (ALP) was added to the clinical chemistry variables since this variable was also required for safety evaluation. • It was clarified that treatment with IdeS should be performed the day before transplantation for patients with a living donor and on the day of transplantation for patients with a deceased donor. • The sampling time points for cross-match tests after IdeS administration were clarified. • The time points for kidney biopsies were changed and it was clarified that patients who did not undergo transplantation would not have biopsies taken. • The causality rating for AEs was changed to be consistent with the safety plan. • The procedures for SAE and SUSAR reporting were changed to be consistent with the safety management plan. • The principal investigator at Uppsala University Hospital was changed. • One more site (Karolinska University Hospital) was added.
    14 Nov 2015
    Amendment 3, dated 20 Oct 2015 • Staggered dosing within dose groups removed . • Number of additional patients that could be included in each dose group increased from 2 to 6 additional patients (i.e. total 2-8 patients). • Clarified on signature page of protocol that principal investigator at Uppsala University Hospital was the coordinating investigator for study. • Known horse allergy added as an exclusion criterion. • Requirement for a negative cross-match test before transplantation was removed. • Screening window increased to include day 0, i.e. including the day of IdeS administration. • Flow charts were updated to specify that day 0 was the day of IdeS dosing and to clarify when pre-dose sampling was to be performed. • In the flow chart clarified that the pregnancy test did not have to be repeated pre-dose if the pregnancy test at screening had been performed within the last 24 hours prior to dosing. • Clarified viral surveillance (BK, EBV, and CVM) would be performed. • Previous virology screening (for HIV and hepatitis B and C) accepted if performed within 36 months prior to IdeS administration instead of only 6 months. • P-creatinine was added to the table describing the DMC safety data package • Complement function variables would not be evaluated for clinical significance at each time point. • Phenoxymethylpenicillin changed to 1 g OD instead of 1 g three times daily. Valaciclovir 500 mg three times daily was changed to valganciclovir 450 mg daily. • Clarified that induction therapy would be given according to clinical practice. • Additional time points added in the flow chart for analysis of SAB-C1q • Complement function screening C3dg was removed • Evaluation of causal relationship between SAEs and other medications apart from the IMP omitted • Patients could be re-screened if IdeS had not been given within 28 days from first screening • Info regarding Investigators from Karolinska University Hospital added

    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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