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    Clinical Trial Results:
    A Randomised Trial of the FLAMSA-BU Conditioning Regimen in Patients with Acute Myeloid Leukaemia and Myelodysplasia Undergoing Allogeneic Stem Cell Transplantation

    Summary
    EudraCT number
    2012-005538-12
    Trial protocol
    GB  
    Global end of trial date
    18 Aug 2020

    Results information
    Results version number
    v1(current)
    This version publication date
    23 Jan 2022
    First version publication date
    23 Jan 2022
    Other versions

    Trial information

    Close Top of page
    Trial identification
    Sponsor protocol code
    RG_12-264(HM2052)
    Additional study identifiers
    ISRCTN number
    ISRCTN50855000
    US NCT number
    -
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    University of Birmingham
    Sponsor organisation address
    Research Support Group, Aston Webb, B Block , Birmingham, United Kingdom, B15 2TT, Birmingham, United Kingdom, B15 2TT
    Public contact
    FIGARO Trial Coordinator, University of Birmingham, 004401213714365, IGARO Trial Coordinator, University of Birmingham, 004401213714365, 0044 01213714365, FIGARO@trials.bham.ac.uk
    Scientific contact
    FIGARO Trial Coordinator, University of Birmingham, 004401213714365, FIGARO Trial Coordinator, University of Birmingham, 004401213714365, 0044 01213714365, FIGARO@trials.bham.ac.uk
    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
    25 Nov 2021
    Is this the analysis of the primary completion data?
    No
    Global end of trial reached?
    Yes
    Global end of trial date
    18 Aug 2020
    Was the trial ended prematurely?
    Yes
    General information about the trial
    Main objective of the trial
    The principal objective of the trial is to determine whether there is a difference in the overall survival (OS) of patients with high risk AML/MDS after a FLAMSA-BU transplant compared with patients receiving one of the three currently used transplant regimens (FMA/FBA/FB-ATG).
    Protection of trial subjects
    Busulphan at the recommended dose and schedule is associated with profound myelosuppression. Severe granulocytopenia, thrombocytopenia, anaemia, or any combination thereof may develop. Frequent complete blood counts, including differential white blood cell counts, and platelet counts will be monitored during the treatment and until recovery is achieved. During periods of mylosuppression, prophylactic or empiric use of anti-infectives (bacterial, fungal, viral) will be adopted for the prevention and management of infections during the neutropenic period. Platelet and red blood cell support, as well as the use of growth factors such as granulocyte colony stimulating factor (G-CSF), will be employed as medically indicated. Busulphan has not been studied in patients with hepatic impairment. Since busulphan is mainly metabolised through the liver we will continue to monitor serum transaminase, alkaline phosphatase, and bilirubin regularly for 28 days following transplant for early detection of hepatotoxicity. Only patients with adequate hepatic function will be enrolled into the trial. Hepatic veno-occlusive disease is a major complication that can occur during treatment with busulphan. Patients who have received prior radiation therapy, greater than or equal to three cycles of chemotherapy, or prior stem cell transplant may be at an increased risk. We will therefore monitor such patients closely. No patients treated in clinical trials have yet experienced cardiac tamponade or other specific cardiac toxicities related to busulphan. However cardiac function will be monitored closely in the immediate transplant period. Occurrence of acute respiratory distress syndrome with subsequent respiratory failure associated with interstitial pulmonary fibrosis has been reported in busulphan studies in one patient who died, although, no clear aetiology was identified. In addition, busulphan might induce pulmonary toxicity that may be additive to the effects produc
    Background therapy
    -
    Evidence for comparator
    Transplant regimens selected for high risk AML and MDS patients vary across transplant centres in the UK and there is no clear consensus concerning the optimum transplant regimen. The control arm for this trial has been designed to include the three most commonly used RIC regimens currently used in the UK in this patient population. Fludarabine/Melphalan/Alemtuzumab (FMA): The Fludarabine/Melphalan/Alemtuzumab (FMA) RIC regimen has been used extensively in the UK for the treatment of patients with AML and MDS in whom a standard myeloablative transplant is contraindicated. The use of melphalan in conditioning for allogeneic SCT is based on its antitumour activity in a number of haematological malignancies in addition to its immunosuppressive effects24,25. Furthermore, fludarabine is a potent immunosuppressive agent that has potential synergistic activity with alkylators26. T cell depletion using alemtuzumab has been used in combination with fludarabine and melphalan to reduce the incidence of severe GvHD10. Studies have shown 3 year OS rates and DFS rates of 41% and 37% respectively using this transplant regimen8. However, in patients with relapsed/refractory AML at the time of transplant, the 3 year DFS is substantially reduced to 20%11. Separate studies have also indicated a poorer transplant outcome in patients with high risk disease. Fludarabine/Busulphan/Alemtuzumab (FBA): The combination of busulphan with fludarabine as conditioning therapy has been associated with significant clinical activity with OS rates of 30% at 2 years have been reported in patients with high risk AML or MDS27. A retrospective analysis comparing fludarabine/busulphan versus fludarabine/melphalan based transplant conditioning revealed that the melphalan group was associated with a higher rate of non-relapse mortality and had a more intense myelosuppressive effect. However, survival rates in the busulphan group were not improved due to the higher rates of disease relapse s
    Actual start date of recruitment
    01 Jun 2013
    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 Kingdom: 244
    Worldwide total number of subjects
    244
    EEA total number of subjects
    0
    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)
    183
    From 65 to 84 years
    61
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    244 patients with AML or MDS who were clinically indicated to receive a RIC allograft were recruited between Sept 2013 to Feb 2017 (164 AML, 80 MDS)

    Pre-assignment
    Screening details
    Screening commenced following consent and prior to patient randomisation in order to confirm eligibility. Screening assessments included: medical history, height, weight, demographic data, blood tests, clinical and cardiac assessments, ECOG performance, pregnancy test and bone marrow samples for research.

    Period 1
    Period 1 title
    Overall Trial (overall period)
    Is this the baseline period?
    Yes
    Allocation method
    Randomised - controlled
    Blinding used
    Not blinded

    Arms
    Are arms mutually exclusive
    Yes

    Arm title
    Control
    Arm description
    Sites could choose which control arm they wanted to use either; Fludarabine/Melphalan/Alemtuzumab (FMA) Fludarabine/busulphan/alemtuzumab (FBA) Fludarabine/busulphan/ATG (FB-ATG)
    Arm type
    Active comparator

    Investigational medicinal product name
    Fludarabine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Powder for concentrate for solution for injection/infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    30mg/m2 once a day IV for 5 days

    Investigational medicinal product name
    Melphalan
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Powder and solvent for solution for injection/infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    140mg/m2 once a day for one day

    Investigational medicinal product name
    Busulphan
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Concentrate for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    3.2mg.kg once daily for 2 days

    Arm title
    Experimental
    Arm description
    FLAMSA-BU
    Arm type
    Experimental

    Investigational medicinal product name
    Fludarabine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Powder for solution for injection/infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    30mg/m2 6 days

    Investigational medicinal product name
    Cytarabine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Solution for injection/infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    2g/m2 once daily for 4 days

    Investigational medicinal product name
    Amsacrine
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Concentrate for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    100mg/m2 once a day for 4 days

    Investigational medicinal product name
    Busulphan
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Concentrate for solution for infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    3.2mg/kg once a day for 4 days

    Number of subjects in period 1
    Control Experimental
    Started
    122
    122
    Completed
    122
    122

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Overall Trial (overall period)
    Reporting group description
    Overall Trial

    Reporting group values
    Overall Trial (overall period) Total
    Number of subjects
    244 244
    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)
    183 183
        From 65-84 years
    61 61
        85 years and over
    0 0
    Age continuous
    Units: years
        arithmetic mean (standard deviation)
    59 ( 2 ) -
    Gender categorical
    Units: Subjects
        Female
    99 99
        Male
    145 145
    Underlying Disease AML
    Units: Subjects
        AML FMA/FBA/FB-ATG
    140 140
        FLAMSA-BU
    104 104
    Cytogenetic risk Control - AML
    Units: Subjects
        Adverse risk
    50 50
        Intermediate Risk
    105 105
        Favourable Risk
    89 89
    Cytogenetic risk Experimental - AML
    Units: Subjects
        Adverse risk
    50 50
        Intermediate risk
    105 105
        Favourable risk
    89 89
    Cytogenetic risk control - MDS
    Units: Subjects
        Good risk
    105 105
        Intermediate risk
    69 69
        Poor risk
    70 70
    Cytogenetic risk experimental - MDS
    Units: Subjects
        Good risk
    127 127
        Intermediate risk
    45 45
        Poor risk
    72 72
    Disease status (AML only) control
    Units: Subjects
        CR1/CR2
    155 155
        Primary refractory
    89 89
    Disease status (AML only) experimental
    Units: Subjects
        CR1/CR2
    155 155
        Primary refractory
    89 89
    Donor type control
    Units: Subjects
        Sibling
    49 49
        Unrelated
    195 195
    Donor type experimental
    Units: Subjects
        Sibling
    49 49
        Unrelated
    195 195
    MRD results control
    Units: Subjects
        Positive
    81 81
        Negative
    95 95
        Inadequate
    27 27
        Unknown
    41 41
    MRD results experimental
    Units: Subjects
        Positive
    81 81
        Negative
    95 95
        Inadequate
    27 27
        Unknown
    41 41
    IPSS (MDS only) experimental
    Units: Subjects
        Standard risk (<=2)
    166 166
        High risk (>2)
    78 78
    IPSS (MDS only) control
    Units: Subjects
        Standard risk (<=2)
    166 166
        High (>2)
    78 78
    HCT-CI control
    Units: Subjects
        <=2
    145 145
        >=3
    51 51
        Unknown
    48 48
    HCT-CI experimental
    Units: Subjects
        <=2
    145 145
        >=3
    51 51
        Unknown
    48 48
    FLT3 control
    Units: Subjects
        Absent
    101 101
        Present
    43 43
        Unknown
    100 100
    FLT3 experimental
    Units: Subjects
        Absent
    101 101
        Present
    43 43
        Unknown
    100 100
    NPM1 control
    Units: Subjects
        Absent
    103 103
        Present
    40 40
        Unknown
    101 101
    NPM1 experimental
    Units: Subjects
        Absent
    103 103
        Present
    40 40
        Unknown
    101 101
    Stem cell source control
    Units: Subjects
        Peripheral blood
    208 208
        Bone marrow
    36 36
    Stem cell source experimental
    Units: Subjects
        Peripheral blood
    208 208
        Bone marrow
    36 36

    End points

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    End points reporting groups
    Reporting group title
    Control
    Reporting group description
    Sites could choose which control arm they wanted to use either; Fludarabine/Melphalan/Alemtuzumab (FMA) Fludarabine/busulphan/alemtuzumab (FBA) Fludarabine/busulphan/ATG (FB-ATG)

    Reporting group title
    Experimental
    Reporting group description
    FLAMSA-BU

    Primary: Overall Survival

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    End point title
    Overall Survival
    End point description
    Calculated as the time from date of randomisation to the date of death from any cause, or date last seen for censored patients who are still alive at the end of follow-up.
    End point type
    Primary
    End point timeframe
    OS (defined as the time from date of randomisation to the date of death from any cause) on both an intention-to-treat (ITT)
    End point values
    Control Experimental
    Number of subjects analysed
    122
    122
    Units: OS
    number (not applicable)
        Two year
    58.8
    60.9
        Three year
    52.9
    55.4
    Statistical analysis title
    Overall Survival
    Statistical analysis description
    Therefore assuming a 2 year OS in the control arm (FMA/FBA) of 25%, in order to detect a 15% improvement in the experimental arm (FLAMSA-BU), a total of about 214 patients (2 sided α=0.15, β=0.16) were required. In order to account for the 10% of patients in the trial who are randomised but do not undergo transplant, the trial aimed to recruit around 240 patients on a 1:1 basis.
    Comparison groups
    Experimental v Control
    Number of subjects included in analysis
    244
    Analysis specification
    Pre-specified
    Analysis type
    equivalence
    P-value
    < 0.5
    Method
    t-test, 2-sided
    Parameter type
    Mean difference (final values)
    Confidence interval
         level
    95%
    Variability estimate
    Standard deviation

    Secondary: Event free survival

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    End point title
    Event free survival
    End point description
    For patients randomised in CR1/CR2 - calculated as the time fro date of randomisation to the first date of relapse or death from any cause, or date last seen for censored patients who have not had an event by the end of follow-up.
    End point type
    Secondary
    End point timeframe
    Event free survival (EFS) (defined for patients randomised in CR1/CR2 as the time from date of randomisation to the first of date of relapse or death from any cause and for patients with primary refractory disease as the time from date of randomisation
    End point values
    Control Experimental
    Number of subjects analysed
    122
    122
    Units: EFS
    number (not applicable)
        2 years
    48.7
    54.6
        3 years
    44.8
    49.1
    No statistical analyses for this end point

    Secondary: Cumulative incidence of disease relapse

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    End point title
    Cumulative incidence of disease relapse
    End point description
    Cumulative incidence of disease relapse is defined as time in days from date of randomisation to date of disease relapse. Death will be considered a competing risk with time being calculated as date of randomisation to date of death and patients who do not experience disease relapse or death being censored at their date last. Primary refractory patients will be excluded from this analysis.
    End point type
    Secondary
    End point timeframe
    Time in days form date of randomisation to date of disease relapse
    End point values
    Control Experimental
    Number of subjects analysed
    122
    122
    Units: CIR
    number (not applicable)
        I year
    21.8
    19.8
        2 year
    29.4
    26.4
        3 year
    32.4
    30.2
    No statistical analyses for this end point

    Secondary: Transplant related mortality

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    End point title
    Transplant related mortality
    End point description
    Cumulative incidence of TRM is defined with non-transplant related deaths as a competing risk, by the time in days from the date of randomisation to date of any death unrelated to the underlying disease and considered related to the transplant procedure. Date of death will be taken for patients who experience a competing event (non-transplant related deaths) and date last seen for censored patients who have not experienced an event or competing event. Table 34: TRM
    End point type
    Secondary
    End point timeframe
    Day 100 and 12 months TRM defined as as any death unrelated to the underlying disease and considered related to the transplant procedure
    End point values
    Control Experimental
    Number of subjects analysed
    108
    108
    Units: TRM
    number (not applicable)
        Day 100 TRM
    2.8
    13.9
        1 year TRM
    16.8
    20.5
        2 year TRM
    18.7
    21.5
    No statistical analyses for this end point

    Secondary: Incidence of graft versus host disease (GvHD)

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    End point title
    Incidence of graft versus host disease (GvHD)
    End point description
    • Incidence of GvHD
    End point type
    Secondary
    End point timeframe
    Incidence of GvHD
    End point values
    Control Experimental
    Number of subjects analysed
    44
    39
    Units: aGvHD
    number (not applicable)
        Day 100 cumulative incidence grade 3-4
    1.7
    5.8
        Day 100 cumulative incidence grade 2-4
    10.1
    8.3
    No statistical analyses for this end point

    Secondary: Incidence of graft versus host disease (GvHD)

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    End point title
    Incidence of graft versus host disease (GvHD)
    End point description
    Incidence of chronic GvHD
    End point type
    Secondary
    End point timeframe
    Incidence of chronic GvHD
    End point values
    Control Experimental
    Number of subjects analysed
    36
    31
    Units: cGvHD
    number (not applicable)
        1 year cumulative incidence of cGvHD
    25.2
    17.4
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    All AEs were to be documented and reported from the date of commencement of protocol defined treatment until 30 days after the date of transplant
    Adverse event reporting additional description
    The collection and reporting of AEs were in accordance with the Medicines for Human Use Clinical Trials Regulations 2004 and its subsequent amendments. The Investigator should assess the seriousness and causality (relatedness) of all AEs experienced by the patient with reference to the Investigator Brochure.
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    CTCAE
    Dictionary version
    4.0
    Reporting groups
    Reporting group title
    Control
    Reporting group description
    -

    Reporting group title
    Experimental
    Reporting group description
    -

    Serious adverse events
    Control Experimental
    Total subjects affected by serious adverse events
         subjects affected / exposed
    11 / 122 (9.02%)
    29 / 122 (23.77%)
         number of deaths (all causes)
    1
    5
         number of deaths resulting from adverse events
    1
    5
    General disorders and administration site conditions
    fever
         subjects affected / exposed
    0 / 122 (0.00%)
    2 / 122 (1.64%)
         occurrences causally related to treatment / all
    0 / 0
    2 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Immune system disorders
    Cytokine release syndrome
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 0
         deaths causally related to treatment / all
    1 / 1
    0 / 0
    Respiratory, thoracic and mediastinal disorders
    Aspiration
         subjects affected / exposed
    1 / 122 (0.82%)
    0 / 122 (0.00%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 0
         deaths causally related to treatment / all
    1 / 1
    0 / 0
    Respiratory, thoracic and mediastinal disorders other
         subjects affected / exposed
    1 / 122 (0.82%)
    0 / 122 (0.00%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Investigations
    Neutrophil count decreased
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 1
    Cardiac disorders
    Mitral valve disease
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    3 / 3
         deaths causally related to treatment / all
    0 / 0
    3 / 3
    Myocardial infarction
         subjects affected / exposed
    1 / 122 (0.82%)
    0 / 122 (0.00%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 0
         deaths causally related to treatment / all
    1 / 1
    0 / 0
    Nervous system disorders
    Intracranial hemorrhage
         subjects affected / exposed
    1 / 122 (0.82%)
    3 / 122 (2.46%)
         occurrences causally related to treatment / all
    0 / 1
    1 / 3
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Nervous system disorder other
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Syncope
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Blood and lymphatic system disorders
    Other
         subjects affected / exposed
    0 / 122 (0.00%)
    2 / 122 (1.64%)
         occurrences causally related to treatment / all
    0 / 0
    2 / 2
         deaths causally related to treatment / all
    0 / 0
    2 / 2
    Febrile Neutropenia
         subjects affected / exposed
    0 / 122 (0.00%)
    3 / 122 (2.46%)
         occurrences causally related to treatment / all
    0 / 0
    3 / 3
         deaths causally related to treatment / all
    0 / 0
    3 / 3
    Gastrointestinal disorders
    Diarrhea
         subjects affected / exposed
    3 / 122 (2.46%)
    0 / 122 (0.00%)
         occurrences causally related to treatment / all
    3 / 3
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Nausea
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 1
    Oral pain
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    1 / 1
    Vomiting
         subjects affected / exposed
    1 / 122 (0.82%)
    0 / 122 (0.00%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Skin and subcutaneous tissue disorders
    Palmar-plantar erythrodysaesthesia syndrome
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Renal and urinary disorders
    Hematuria
         subjects affected / exposed
    0 / 122 (0.00%)
    2 / 122 (1.64%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Musculoskeletal and connective tissue disorders
    Generalized muscle weakness
         subjects affected / exposed
    1 / 122 (0.82%)
    0 / 122 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Missing
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Infections and infestations
    Appendicitis
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Other
         subjects affected / exposed
    1 / 122 (0.82%)
    2 / 122 (1.64%)
         occurrences causally related to treatment / all
    0 / 1
    2 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Lung infection
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    1 / 1
    Lung infection. Diarrhea
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Cough
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Sepsis
         subjects affected / exposed
    1 / 122 (0.82%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 1
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Skin infection
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Metabolism and nutrition disorders
    Hyperkalaemia
         subjects affected / exposed
    0 / 122 (0.00%)
    1 / 122 (0.82%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Frequency threshold for reporting non-serious adverse events: 5%
    Non-serious adverse events
    Control Experimental
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    66 / 122 (54.10%)
    89 / 122 (72.95%)
    Investigations
    Lymphocyte count decreased
         subjects affected / exposed
    14 / 122 (11.48%)
    16 / 122 (13.11%)
         occurrences all number
    30
    40
    Neutrophil count decreased
         subjects affected / exposed
    35 / 122 (28.69%)
    37 / 122 (30.33%)
         occurrences all number
    78
    56
    Platelet count decreased
         subjects affected / exposed
    31 / 122 (25.41%)
    38 / 122 (31.15%)
         occurrences all number
    77
    158
    White blood cell count decreased
         subjects affected / exposed
    25 / 122 (20.49%)
    30 / 122 (24.59%)
         occurrences all number
    54
    48
    Blood and lymphatic system disorders
    Anaemia
         subjects affected / exposed
    21 / 122 (17.21%)
    32 / 122 (26.23%)
         occurrences all number
    29
    73
    Febrile neutropenia
         subjects affected / exposed
    24 / 122 (19.67%)
    46 / 122 (37.70%)
         occurrences all number
    27
    52
    Gastrointestinal disorders
    Diarrhoea
         subjects affected / exposed
    11 / 122 (9.02%)
    17 / 122 (13.93%)
         occurrences all number
    11
    18
    mucositis oral
         subjects affected / exposed
    10 / 122 (8.20%)
    16 / 122 (13.11%)
         occurrences all number
    10
    16
    Nausea
         subjects affected / exposed
    6 / 122 (4.92%)
    11 / 122 (9.02%)
         occurrences all number
    9
    11
    Infections and infestations
    Device related infection
         subjects affected / exposed
    3 / 122 (2.46%)
    10 / 122 (8.20%)
         occurrences all number
    3
    10
    Other, specify
         subjects affected / exposed
    7 / 122 (5.74%)
    8 / 122 (6.56%)
         occurrences all number
    10
    11
    Sepsis
         subjects affected / exposed
    1 / 122 (0.82%)
    12 / 122 (9.84%)
         occurrences all number
    1
    12
    Metabolism and nutrition disorders
    Anorexia nervosa
         subjects affected / exposed
    3 / 122 (2.46%)
    11 / 122 (9.02%)
         occurrences all number
    3
    11

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    12 Aug 2013
    Addition of FB-ATG regimen Patients should be randomised 2-6 weeks prior to transplant admission date Changes in scheduling solely for logistical reasons or to allow weekday administration of chemotherapy permitted without approval from CI or CC
    11 Apr 2014
    Addition of new inclusion criteria; Patients with Flt-3 ITD positive AML; Patients with persistent or rising MRD levels, who have a morphological CR; Patients who been have defined as high risk by MRD criteria Reclassification of T-cell depletion agents from IMPS to NIMPs
    15 Dec 2014
    Modification to guidance on Mycophenolate Mofetil Patients 60 years and over omit day -7 busulphan and count as a rest day Clarification of patients age range for the FLAMSA-Bu schedule
    20 Jan 2015
    Revised schedule for FLAMSA-BU conditioning regimen in patients 60 years and over. Exclusion criteria reworded to clarify the inclusion of patients who have had a previous malignancy and which also applies to those with a Sorror score of greater than 3 due to a previous malignancy
    27 May 2015
    Patients with Hep-B are now allowed to be included as the presence of the virus does not cause any issues with treatment. There is new wording in the patient information sheet to clarify the aim of the clinical trial and also to state that there may be some variation in the number of days for treatment depending on the local hospital schedules.
    14 Dec 2015
    to allow the inclusion of patients defined as patients not in complete remission (CR) after the first course of induction therapy and patients with secondary AML who have a previous history of myelodysplasia, antecedent haematological disease or chemotherapy exposure in CR1 or CR2. The classification of high risk patients defined according to the clinical trial AML 17 has been removed as the AML 17 trial is now closed. The stopping rule has been redefined on advice from the trial steering committee for the trial. This was based on the data obtained from the trial so far.
    16 Feb 2018
    Addition of Clatterbridge as a site
    25 Mar 2019
    Change of PI ate Leicester Royal Infirmary from Dr Ann Hunter to Dr Alexander Martin

    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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