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    Clinical Trial Results:
    A multicentre, open-label, single-arm, molecular profiling study of patients with epidermal growth factor receptor (EGFR) mutation-positive locally advanced or metastatic non-small-cell lung cancer (NSCLC) treated with osimertinib

    Summary
    EudraCT number
    2017-002359-27
    Trial protocol
    ES   IT  
    Global end of trial date
    19 Sep 2023

    Results information
    Results version number
    v2(current)
    This version publication date
    30 Oct 2024
    First version publication date
    19 Sep 2024
    Other versions
    v1
    Version creation reason
    • Correction of full data set
    Correction of information

    Trial information

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    Trial identification
    Sponsor protocol code
    D5161C00003
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT03239340
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    AstraZeneca
    Sponsor organisation address
    Södertälje, Södertälje, Sweden, 151 85
    Public contact
    Global Clinical Lead, AstraZeneca, +1 8772409479, information.center@astrazeneca.com
    Scientific contact
    Global Clinical Lead, AstraZeneca, +1 8772409479, information.center@astrazeneca.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
    18 Jul 2023
    Is this the analysis of the primary completion data?
    No
    Global end of trial reached?
    Yes
    Global end of trial date
    19 Sep 2023
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    To examine the tumour genetic and proteomic profile at the point of disease progression in patients receiving osimertinib as first-line epidermal growth factor receptor (EGFR) TKI therapy for EGFRm+ locally advanced or metastatic non-small-cell lung cancer (NSCLC) compared to the profile prior to initiation of treatment.
    Protection of trial subjects
    The study was performed in accordance with ethical principles that had their origin in the Declaration of Helsinki and were consistent with International Council of Harmonisation Good Clinical Practice and the AstraZeneca policy on Bioethics and Human Biological Samples applicable laws and regulatory requirements.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    30 May 2018
    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
    Italy: 11
    Country: Number of subjects enrolled
    Korea, Republic of: 65
    Country: Number of subjects enrolled
    Malaysia: 50
    Country: Number of subjects enrolled
    Spain: 16
    Country: Number of subjects enrolled
    United States: 12
    Worldwide total number of subjects
    154
    EEA total number of subjects
    27
    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)
    83
    From 65 to 84 years
    70
    85 years and over
    1

    Subject disposition

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    Recruitment
    Recruitment details
    Participants were enrolled in this study from 30 May 2018 (First subject in) and analyses presented in this results form are based on a data cut-off of 18 July 2023.

    Pre-assignment
    Screening details
    Participants meeting eligibility criteria predefined in protocol were enrolled in the study. All the assessments were performed as per the schedule of the assessments.

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

    Arms
    Arm title
    Osimertinib 80mg
    Arm description
    Participants received Osimertinib 80mg orally once daily.
    Arm type
    Experimental

    Investigational medicinal product name
    Osimertinib
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Tablet
    Routes of administration
    Oral use
    Dosage and administration details
    Participants received 80 mg Osimertinib orally once daily

    Number of subjects in period 1
    Osimertinib 80mg
    Started
    154
    Completed
    33
    Not completed
    121
         Physician decision
    16
         Lost to follow-up
    2
         Patients who are ongoing in the study at DCO
    10
         Death
    40
         Other
    26
         Withdrawal by Subject
    27

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Osimertinib 80mg
    Reporting group description
    Participants received Osimertinib 80mg orally once daily.

    Reporting group values
    Osimertinib 80mg Total
    Number of subjects
    154 154
    Age categorical
    Units: Subjects
        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
        Adults (<50)
    18 18
        >=50 - <65
    65 65
        >=65 - <75
    50 50
        >=75
    21 21
    Age Continuous
    Units: years
        arithmetic mean (standard deviation)
    62.7 ( 10.36 ) -
    Sex: Female, Male
    Units: Participants
        Female
    92 92
        Male
    62 62
    Race/Ethnicity, Customized
    Units: Subjects
        White
    30 30
        Black or African American
    5 5
        Asian
    118 118
        Other
    1 1
    Race/Ethnicity, Customized
    Units: Subjects
        Hispanic
    6 6
        Not Hispanic or Latino
    148 148
    Subject analysis sets

    Subject analysis set title
    Exon19del- EGFR tumor mutation at baseline
    Subject analysis set type
    Full analysis
    Subject analysis set description
    Participants with Exon19del received Osimertinib 80mg orally once daily.

    Subject analysis set title
    L858R- EGFR tumor mutation at baseline
    Subject analysis set type
    Full analysis
    Subject analysis set description
    Participants with L858R received Osimertinib 80mg orally once daily

    Subject analysis set title
    Exon19del- Detectable in plasma ctDNA at baseline
    Subject analysis set type
    Full analysis
    Subject analysis set description
    Participants with Exon19del received Osimertinib 80mg orally once daily

    Subject analysis set title
    L858R-Detectable in plasma ctDNA at baseline
    Subject analysis set type
    Full analysis
    Subject analysis set description
    Participants with L858R received Osimertinib 80mg orally once daily

    Subject analysis sets values
    Exon19del- EGFR tumor mutation at baseline L858R- EGFR tumor mutation at baseline Exon19del- Detectable in plasma ctDNA at baseline L858R-Detectable in plasma ctDNA at baseline
    Number of subjects
    85
    58
    62
    46
    Age categorical
    Units: Subjects
        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
        Adults (<50)
    11
    5
        >=50 - <65
    41
    23
        >=65 - <75
    21
    22
        >=75
    12
    8
    Age Continuous
    Units: years
        arithmetic mean (standard deviation)
    61.6 ( 10.74 )
    63.8 ( 9.51 )
    ( )
    ( )
    Sex: Female, Male
    Units: Participants
        Female
    34
    23
        Male
    51
    35
    Race/Ethnicity, Customized
    Units: Subjects
        White
    11
    17
        Black or African American
    4
    0
        Asian
    69
    41
        Other
    1
    0
    Race/Ethnicity, Customized
    Units: Subjects
        Hispanic
    3
    3
        Not Hispanic or Latino
    82
    55

    End points

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    End points reporting groups
    Reporting group title
    Osimertinib 80mg
    Reporting group description
    Participants received Osimertinib 80mg orally once daily.

    Subject analysis set title
    Exon19del- EGFR tumor mutation at baseline
    Subject analysis set type
    Full analysis
    Subject analysis set description
    Participants with Exon19del received Osimertinib 80mg orally once daily.

    Subject analysis set title
    L858R- EGFR tumor mutation at baseline
    Subject analysis set type
    Full analysis
    Subject analysis set description
    Participants with L858R received Osimertinib 80mg orally once daily

    Subject analysis set title
    Exon19del- Detectable in plasma ctDNA at baseline
    Subject analysis set type
    Full analysis
    Subject analysis set description
    Participants with Exon19del received Osimertinib 80mg orally once daily

    Subject analysis set title
    L858R-Detectable in plasma ctDNA at baseline
    Subject analysis set type
    Full analysis
    Subject analysis set description
    Participants with L858R received Osimertinib 80mg orally once daily

    Primary: Proportion of patients with a given tumour genetic and proteomic marker at the point of disease progression

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    End point title
    Proportion of patients with a given tumour genetic and proteomic marker at the point of disease progression [1]
    End point description
    The frequency of genetic and proteomic markers at disease progression regardless of their prevalence was evaluated. The primary analysis set included all patients with evaluable paired biopsies, which were defined as follows: the first biopsy was taken prior to osimertinib treatment, and the second biopsy was taken at any time between Investigator-assessed RECIST 1.1-defined progression and before the start of any new anticancer treatment. The primary analysis set was included for the analysis for the endpoint.
    End point type
    Primary
    End point timeframe
    Genetic and proteomic markers were assessed at baseline and progression (up to 5 years after baseline)
    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 statistical analysis was calculated for the Outcome measure
    End point values
    Osimertinib 80mg
    Number of subjects analysed
    51
    Units: Percentage of participants
    number (confidence interval 95%)
        AKT2; Copy Number Alteration: Type; amplification
    2.0 (0.05 to 10.45)
        ALK; Rearrangement
    3.9 (0.48 to 13.46)
        APC; Copy Number Alteration; Type: loss
    2.0 (0.05 to 10.45)
        ARAF; Copy Number Alteration; Type: amplification
    3.9 (0.48 to 13.46)
        ASXL1; Short Variant; Type: Q588*
    2.0 (0.05 to 10.45)
        ATRX; Short Variant; Type: P599fs*22
    2.0 (0.05 to 10.45)
        AXL; Copy Number Alteration; Type: amplification
    2.0 (0.05 to 10.45)
        BCL2L2; Copy Number Alteration; Type:amplification
    3.9 (0.48 to 13.46)
        BRAF; Rearrangement
    2.0 (0.05 to 10.45)
        BRAF; Short variant; Type: G469A
    2.0 (0.05 to 10.45)
        BRAF; Short variant Type: V600E
    3.9 (0.48 to 13.46)
        CBL; Short Variant; Type: R149Q
    2.0 (0.05 to 10.45)
        CCND1 Copy Number Alteration Type: amplification
    3.9 (0.48 to 13.46)
        CCNE1 Copy Number Alteration Type: amplification
    5.9 (1.23 to 16.24)
        CDK4 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        CDK6 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        CDKN1B Short Variant Type: S2*
    2.0 (0.05 to 10.45)
        CDKN2A Copy Number Alteration Type: loss
    15.7 (7.02 to 28.59)
        CDKN2A; Short Variant Type: P38L
    2.0 (0.05 to 10.45)
        CDKN2B Copy Number Alteration Type: loss
    15.7 (7.02 to 28.59)
        CRKL Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        CUL4A Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        DIS3 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        EGFR Copy Number Alteration Type: amplification
    11.8 (4.44 to 23.87)
        EGFR Rearrangement
    2.0 (0.05 to 10.45)
        EGFR Short Variant Type: C797S
    13.7 (5.70 to 26.26)
        EGFR Short Variant Type: L858R
    2.0 (0.05 to 10.45)
        EMSY Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        ERBB2 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        FANCG Rearrangement
    2.0 (0.05 to 10.45)
        FGF10 Copy Number Alteration Type: amplification
    3.9 (0.48 to 13.46)
        FGF14; Copy Number Alteration; Type: amplification
    2.0 (0.05 to 10.45)
        FGF19 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        FGFR1 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        FGFR3 Rearrangement
    2.0 (0.05 to 10.45)
        FGFR4 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        HGF Copy Number Alteration Type: amplification
    3.9 (0.48 to 13.46)
        HRAS Short Variant Type: Q61R
    2.0 (0.05 to 10.45)
        IDH1 Short Variant Type: R132L
    2.0 (0.05 to 10.45)
        IGF1R Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        IRS2 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        KRAS Copy Number Alteration Type: amplification
    3.9 (0.48 to 13.46)
        LYN Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        MAP2K1 Short Variant Type: E102_I103del
    2.0 (0.05 to 10.45)
        MCL1 Copy Number Alteration Type: amplification
    5.9 (1.23 to 16.24)
        MDM2 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        MET Copy Number Alteration Type: amplification
    17.6 (8.40 to 30.87)
        MTAP Copy Number Alteration Type: loss
    13.7 (5.70 to 26.26)
        MYC Copy Number Alteration Type: amplification
    3.9 (0.48 to 13.46)
        MYCN Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        NF1 Short Variant Type: M1I
    2.0 (0.05 to 10.45)
        NFE2L2 Short Variant Type: D29N
    2.0 (0.05 to 10.45)
        NFKBIA Copy Number Alteration Type: amplification
    9.8 (3.26 to 21.41)
        NKX2-1 Copy Number Alteration Type: amplification
    9.8 (3.26 to 21.41)
        NOTCH3 Rearrangement
    2.0 (0.05 to 10.45)
        NTRK1 Copy Number Alteration Type: amplification
    3.9 (0.48 to 13.46)
        PARP1 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        PDGFRB Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        PIK3CA Short Variant Type: E542K
    2.0 (0.05 to 10.45)
        PIM1 Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        RAD21 Copy Number Alteration Type: amplification
    3.9 (0.48 to 13.46)
        RB1 Copy Number Alteration Type: loss
    3.9 (0.48 to 13.46)
        RB1 Short Variant Type: Q846*
    2.0 (0.05 to 10.45)
        RICTOR Copy Number Alteration Type: amplification
    7.8 (2.18 to 18.88)
        SMAD4 Rearrangement
    2.0 (0.05 to 10.45)
        SMAD4 Short Variant Type: W524L
    2.0 (0.05 to 10.45)
        SPEN Short Variant Type: D2047fs*17
    2.0 (0.05 to 10.45)
        STK11 Copy Number Alteration Type: loss
    2.0 (0.05 to 10.45)
        STK11 Short Variant Type: K269fs*18
    2.0 (0.05 to 10.45)
        TERC Copy Number Alteration Type: amplification
    2.0 (0.05 to 10.45)
        TERT Short Variant Type: promoter -146C>T
    2.0 (0.05 to 10.45)
        TET2 Short Variant Type: Q916*
    2.0 (0.05 to 10.45)
        TET2 Short Variant Type: V1862fs*13
    2.0 (0.05 to 10.45)
        TP53 Short Variant Type: R213*
    2.0 (0.05 to 10.45)
        WHSC1L1 Copy Number Alteration Type: amplification
    3.9 (0.48 to 13.46)
        ZNF703 Copy Number Alteration Type: amplification
    3.9 (0.48 to 13.46)
    No statistical analyses for this end point

    Secondary: Progression free survival (PFS)

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    End point title
    Progression free survival (PFS)
    End point description
    PFS is defined as the time from first dose of osimertinib until the date of Investigator assessed Response Evaluation Criteria in Solid Tumours (RECIST) 1.1-defined progression or death (by any cause in the absence of progression) regardless of whether the patient withdraws from therapy or receives another anticancer therapy prior to progression. The full analysis set included all patients who received at least one dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose until date of progression or death (by any cause in the absence of recurrence), up to 5 years
    End point values
    Osimertinib 80mg
    Number of subjects analysed
    154
    Units: Months
        median (confidence interval 95%)
    16.4 (12.7 to 20.3)
    No statistical analyses for this end point

    Secondary: Objective Response Rate (ORR)

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    End point title
    Objective Response Rate (ORR)
    End point description
    ORR is defined as the number (%) of patients with at least one visit response of complete response (CR) or partial response (PR) that is confirmed at least 4 weeks later. The full analysis set included all patients who received at least one dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose until progression, or last evaluable assessment in the absence of progression, up to 5 years
    End point values
    Osimertinib 80mg
    Number of subjects analysed
    154
    Units: Percentage of participants
        number (confidence interval 95%)
    73.4 (65.66 to 80.17)
    No statistical analyses for this end point

    Secondary: Duration of Response (DoR)

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    End point title
    Duration of Response (DoR)
    End point description
    Duration of response is defined as the time from the date of first documented response, (that is subsequently confirmed) until date of documented progression or death in the absence of disease progression, the end of response should coincide with the date of progression or death from any cause used for the PFS endpoint. The time of the initial response will be defined as the latest of the dates contributing towards the first visit that was CR or PR that was subsequently confirmed. The full analysis set included all patients who received at least one dose of Osimertinib. The Duration of response is calculated for only participants with a confirmed response. Participants must have had measurable disease at baseline to be included in the study.
    End point type
    Secondary
    End point timeframe
    From date of first documentation of complete/partial response until the date of progression, or last evaluable RECIST assessment for participants that did not progress within 2 missed visits of last assessment, up to 5 years
    End point values
    Osimertinib 80mg
    Number of subjects analysed
    113
    Units: Months
        median (confidence interval 95%)
    18.8 (14.2 to 22.3)
    No statistical analyses for this end point

    Secondary: Disease control rate (DCR)

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    End point title
    Disease control rate (DCR)
    End point description
    DCR is defined as percentage of patients with confirmed complete response, confirmed partial response or with stable disease. The full analysis set included all patients who received at least one dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    8 weeks
    End point values
    Osimertinib 80mg
    Number of subjects analysed
    154
    Units: Percentage of participants
        number (confidence interval 95%)
    94.8 (90.02 to 97.73)
    No statistical analyses for this end point

    Secondary: Time to Treatment Discontinuation or Death (TTD)

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    End point title
    Time to Treatment Discontinuation or Death (TTD)
    End point description
    TTD is defined as the time from the date of first dose of osimertinib to the earliest of treatment discontinuation or death. The full analysis set included all patients who received at least one dose of osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose to treatment discontinuation or death (by any cause in the absence of recurrence), up to 5 years
    End point values
    Osimertinib 80mg
    Number of subjects analysed
    154
    Units: Months
        median (confidence interval 95%)
    20.0 (16.3 to 23.8)
    No statistical analyses for this end point

    Secondary: Time to first subsequent therapy or Death (TFST)

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    End point title
    Time to first subsequent therapy or Death (TFST)
    End point description
    TFST is defined as the time from the date of first dose of Osimertinib to the earlier of the date of anticancer therapy start date following study treatment discontinuation, or death. The full analysis set included all patients who received at least one dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose to start of subsequent anticancer therapy or death (by any cause in the absence of recurrence), up to 5 years
    End point values
    Osimertinib 80mg
    Number of subjects analysed
    154
    Units: Months
        median (confidence interval 95%)
    32.1 (24.0 to 47.7)
    No statistical analyses for this end point

    Secondary: PFS in patient subgroups defined by molecular profile: Epidermal growth factor receptor (EGFR) tumor mutation at baseline

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    End point title
    PFS in patient subgroups defined by molecular profile: Epidermal growth factor receptor (EGFR) tumor mutation at baseline
    End point description
    PFS is defined as the time from first dose of osimertinib until the date of Investigator assessed Response Evaluation Criteria in Solid Tumours (RECIST) 1.1-defined progression or death (by any cause in the absence of progression) regardless of whether the patient withdraws from therapy or receives another anticancer therapy prior to progression. PFS was analysed in patient subgroups defined by molecular profile, including but not limited to: EGFR tumor mutation at baseline-Exon19del or L858R. The full analysis set included all patients who received at least one dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose until date of progression or death (by any cause in the absence of recurrence), up to 5 years
    End point values
    Exon19del- EGFR tumor mutation at baseline L858R- EGFR tumor mutation at baseline
    Number of subjects analysed
    85
    58
    Units: Months
        median (confidence interval 95%)
    22.0 (16.0 to 27.6)
    12.9 (10.8 to 18.2)
    No statistical analyses for this end point

    Secondary: PFS in patient subgroups defined by molecular profile: Detectable in plasma derived ctDNA at baseline

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    End point title
    PFS in patient subgroups defined by molecular profile: Detectable in plasma derived ctDNA at baseline
    End point description
    PFS is defined as the time from first dose of osimertinib until the date of Investigator assessed Response Evaluation Criteria in Solid Tumours (RECIST) 1.1-defined progression or death (by any cause in the absence of progression) regardless of whether the patient withdraws from therapy or receives another anticancer therapy prior to progression. PFS was analysed in patient subgroups defined by molecular profile, including but not limited to: Exon19del or L858R detectable in plasma derived circulating tumour deoxyribonucleic acid (ctDNA) at baseline. The full analysis set included all patients who received at least 1 dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose until date of progression or death (by any cause in the absence of recurrence), up to 5 years
    End point values
    Exon19del- Detectable in plasma ctDNA at baseline L858R-Detectable in plasma ctDNA at baseline
    Number of subjects analysed
    62
    46
    Units: Months
        median (confidence interval 95%)
    19.6 (12.7 to 24.0)
    13.7 (9.0 to 18.2)
    No statistical analyses for this end point

    Secondary: ORR in patient subgroups defined by molecular profile: EGFR tumor mutation at baseline

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    End point title
    ORR in patient subgroups defined by molecular profile: EGFR tumor mutation at baseline
    End point description
    ORR is defined as the number (%) of patients with at least one visit response of complete response or partial response that is confirmed at least 4 weeks later. ORR was analysed in patient subgroups defined by molecular profile: EGFR tumor mutation at baseline-Exon19del or L858R. The full analysis set included all patients who received at least 1 dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose until progression, or last evaluable assessment in the absence of progression, up to 5 years
    End point values
    Exon19del- EGFR tumor mutation at baseline L858R- EGFR tumor mutation at baseline
    Number of subjects analysed
    85
    58
    Units: Percentage of participants
        number (confidence interval 95%)
    82.4 (72.57 to 89.77)
    69.0 (55.46 to 80.46)
    No statistical analyses for this end point

    Secondary: ORR in patient subgroups defined by molecular profile: Detectable in plasma derived ctDNA at baseline

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    End point title
    ORR in patient subgroups defined by molecular profile: Detectable in plasma derived ctDNA at baseline
    End point description
    ORR is defined as the number (%) of patients with at least one visit response of complete response or partial response that is confirmed at least 4 weeks later. ORR was analysed in patient subgroups defined by molecular profile: Exon19del or L858R detectable in plasma derived ctDNA at baseline. The full analysis set included all patients who received at least 1 dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose until progression, or last evaluable assessment in the absence of progression, up to 5 years
    End point values
    Exon19del- Detectable in plasma ctDNA at baseline L858R-Detectable in plasma ctDNA at baseline
    Number of subjects analysed
    62
    46
    Units: Percentage of participants
        number (confidence interval 95%)
    85.5 (74.22 to 93.14)
    71.7 (56.54 to 84.01)
    No statistical analyses for this end point

    Secondary: TTD in patient subgroups defined by molecular profile: EGFR tumor mutation at baseline

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    End point title
    TTD in patient subgroups defined by molecular profile: EGFR tumor mutation at baseline
    End point description
    TTD is defined as the time from the date of first dose of Osimertinib to the earliest of treatment discontinuation or death. TTD was analysed in patient subgroups defined by molecular profile: EGFR tumor mutation at baseline-Exon19del or L858R. The full analysis set included all patients who received at least 1 dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose to treatment discontinuation or death (by any cause in the absence of recurrence), up to 5 years
    End point values
    Exon19del- EGFR tumor mutation at baseline L858R- EGFR tumor mutation at baseline
    Number of subjects analysed
    85
    58
    Units: Months
        median (confidence interval 95%)
    25.5 (19.6 to 32.1)
    16.5 (12.1 to 21.7)
    No statistical analyses for this end point

    Secondary: TTD in patient subgroups defined by molecular profile: Detectable in plasma derived ctDNA at baseline

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    End point title
    TTD in patient subgroups defined by molecular profile: Detectable in plasma derived ctDNA at baseline
    End point description
    TTD is defined as the time from the date of first dose of osimertinib to the earliest of treatment discontinuation or death. TTD was analysed in patient subgroups defined by molecular profile: Exon19del or L858R detectable in plasma derived ctDNA at baseline. The full analysis set included all patients who received at least one dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose to treatment discontinuation or death (by any cause in the absence of recurrence), up to 5 years
    End point values
    Exon19del- Detectable in plasma ctDNA at baseline L858R-Detectable in plasma ctDNA at baseline
    Number of subjects analysed
    62
    46
    Units: Months
        median (confidence interval 95%)
    24.5 (17.8 to 29.6)
    16.5 (12.1 to 21.4)
    No statistical analyses for this end point

    Secondary: Tumour shrinkage/depth of response in patient subgroups defined by molecular profile: EGFR tumor mutation at baseline

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    End point title
    Tumour shrinkage/depth of response in patient subgroups defined by molecular profile: EGFR tumor mutation at baseline
    End point description
    Tumor shrinkage is defined as the best change from baseline in the sum of diameters of target lesions, in patient subgroups defined by molecular profile: EGFR tumor mutation at baseline-Exon19del or L858R. A negative change denotes a reduction in target lesion size. The full analysis set included all patients who received at least 1 dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose until last recorded post baseline RECIST target lesion assessment scan, up to 5 years
    End point values
    Exon19del- EGFR tumor mutation at baseline L858R- EGFR tumor mutation at baseline
    Number of subjects analysed
    83
    55
    Units: Percentage change
        median (full range (min-max))
    -59.68 (-100.0 to 6.5)
    -54.29 (-100.0 to 7.6)
    No statistical analyses for this end point

    Secondary: Tumour shrinkage/depth of response in patient subgroups defined by molecular profile: Detectable in plasma derived ctDNA at baseline

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    End point title
    Tumour shrinkage/depth of response in patient subgroups defined by molecular profile: Detectable in plasma derived ctDNA at baseline
    End point description
    Tumour shrinkage is defined as the best change from baseline in the sum of diameters of target lesions, in patient subgroups defined by molecular profile: Exon19del or L858R detectable in plasma derived ctDNA at baseline. A negative change denotes a reduction in target lesion size. The full analysis set included all patients who received at least 1 dose of Osimertinib.
    End point type
    Secondary
    End point timeframe
    From date of first dose until last recorded post baseline RECIST target lesion assessment scan, up to 5 years
    End point values
    Exon19del- Detectable in plasma ctDNA at baseline L858R-Detectable in plasma ctDNA at baseline
    Number of subjects analysed
    60
    44
    Units: Percentage change
        median (full range (min-max))
    -60.80 (-100.0 to 6.5)
    -58.33 (-100.0 to 7.6)
    No statistical analyses for this end point

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    From Day 1 to Follow-up (28 days post last dose) up to 5 years
    Assessment type
    Non-systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    26.1
    Reporting groups
    Reporting group title
    Osimertinib 80 mg
    Reporting group description
    Participants received Osimertinib 80mg orally once daily.

    Serious adverse events
    Osimertinib 80 mg
    Total subjects affected by serious adverse events
         subjects affected / exposed
    53 / 154 (34.42%)
         number of deaths (all causes)
    40
         number of deaths resulting from adverse events
    12
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Cervix carcinoma
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Vascular disorders
    Embolism
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Deep vein thrombosis
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    General disorders and administration site conditions
    Asthenia
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    General physical health deterioration
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Reproductive system and breast disorders
    Vaginal haemorrhage
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 4
         deaths causally related to treatment / all
    0 / 0
    Respiratory, thoracic and mediastinal disorders
    Haemoptysis
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Interstitial lung disease
         subjects affected / exposed
    2 / 154 (1.30%)
         occurrences causally related to treatment / all
    2 / 2
         deaths causally related to treatment / all
    1 / 1
    Dyspnoea
         subjects affected / exposed
    2 / 154 (1.30%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 1
    Asthma
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Respiratory failure
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pneumothorax
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pneumonitis
         subjects affected / exposed
    2 / 154 (1.30%)
         occurrences causally related to treatment / all
    2 / 2
         deaths causally related to treatment / all
    0 / 0
    Pulmonary embolism
         subjects affected / exposed
    4 / 154 (2.60%)
         occurrences causally related to treatment / all
    1 / 4
         deaths causally related to treatment / all
    0 / 1
    Psychiatric disorders
    Mania
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Confusional state
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Investigations
    Platelet count decreased
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    Neutrophil count decreased
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Electrocardiogram QT prolonged
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    Injury, poisoning and procedural complications
    Femoral neck fracture
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Humerus fracture
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Foreign body aspiration
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Fibula fracture
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pelvic fracture
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Wound dehiscence
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Cardiac disorders
    Cardiac failure acute
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 1
    Cardiac failure
         subjects affected / exposed
    2 / 154 (1.30%)
         occurrences causally related to treatment / all
    1 / 2
         deaths causally related to treatment / all
    0 / 0
    Atrial fibrillation
         subjects affected / exposed
    3 / 154 (1.95%)
         occurrences causally related to treatment / all
    0 / 4
         deaths causally related to treatment / all
    0 / 0
    Acute coronary syndrome
         subjects affected / exposed
    2 / 154 (1.30%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 1
    Nervous system disorders
    Status epilepticus
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Spinal cord compression
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Peripheral sensory neuropathy
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Blood and lymphatic system disorders
    Immune thrombocytopenia
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Blood loss anaemia
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Anaemia
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Gastrointestinal disorders
    Vomiting
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 1
    Gastritis
         subjects affected / exposed
    3 / 154 (1.95%)
         occurrences causally related to treatment / all
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    Duodenitis
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hepatobiliary disorders
    Cholecystitis
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Skin and subcutaneous tissue disorders
    Subcutaneous emphysema
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Renal and urinary disorders
    Acute kidney injury
         subjects affected / exposed
    2 / 154 (1.30%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Haematuria
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Renal impairment
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Endocrine disorders
    Adrenal insufficiency
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Musculoskeletal and connective tissue disorders
    Back pain
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Infections and infestations
    COVID-19
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Urosepsis
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Urinary tract infection
         subjects affected / exposed
    3 / 154 (1.95%)
         occurrences causally related to treatment / all
    0 / 3
         deaths causally related to treatment / all
    0 / 0
    Tuberculosis
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Sepsis
         subjects affected / exposed
    4 / 154 (2.60%)
         occurrences causally related to treatment / all
    0 / 4
         deaths causally related to treatment / all
    0 / 2
    Respiratory tract infection
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Pneumonia aspiration
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 1
    Pneumonia
         subjects affected / exposed
    12 / 154 (7.79%)
         occurrences causally related to treatment / all
    0 / 12
         deaths causally related to treatment / all
    0 / 3
    Lower respiratory tract infection
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Gastroenteritis
         subjects affected / exposed
    2 / 154 (1.30%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Metabolism and nutrition disorders
    Hyperglycaemic hyperosmolar nonketotic syndrome
         subjects affected / exposed
    1 / 154 (0.65%)
         occurrences causally related to treatment / all
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    Hyponatraemia
         subjects affected / exposed
    2 / 154 (1.30%)
         occurrences causally related to treatment / all
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    Hypokalaemia
         subjects affected / exposed
    1 / 154 (0.65%)
         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
    Osimertinib 80 mg
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    148 / 154 (96.10%)
    Investigations
    Gamma-glutamyltransferase increased
         subjects affected / exposed
    9 / 154 (5.84%)
         occurrences all number
    16
    Platelet count decreased
         subjects affected / exposed
    11 / 154 (7.14%)
         occurrences all number
    16
    Weight decreased
         subjects affected / exposed
    11 / 154 (7.14%)
         occurrences all number
    14
    Aspartate aminotransferase increased
         subjects affected / exposed
    14 / 154 (9.09%)
         occurrences all number
    14
    Alanine aminotransferase increased
         subjects affected / exposed
    16 / 154 (10.39%)
         occurrences all number
    16
    Nervous system disorders
    Headache
         subjects affected / exposed
    11 / 154 (7.14%)
         occurrences all number
    11
    Dizziness
         subjects affected / exposed
    11 / 154 (7.14%)
         occurrences all number
    12
    Blood and lymphatic system disorders
    Anaemia
         subjects affected / exposed
    26 / 154 (16.88%)
         occurrences all number
    34
    Thrombocytopenia
         subjects affected / exposed
    9 / 154 (5.84%)
         occurrences all number
    10
    General disorders and administration site conditions
    Fatigue
         subjects affected / exposed
    11 / 154 (7.14%)
         occurrences all number
    17
    Asthenia
         subjects affected / exposed
    13 / 154 (8.44%)
         occurrences all number
    14
    Gastrointestinal disorders
    Constipation
         subjects affected / exposed
    13 / 154 (8.44%)
         occurrences all number
    16
    Gastritis
         subjects affected / exposed
    8 / 154 (5.19%)
         occurrences all number
    9
    Diarrhoea
         subjects affected / exposed
    63 / 154 (40.91%)
         occurrences all number
    94
    Vomiting
         subjects affected / exposed
    14 / 154 (9.09%)
         occurrences all number
    16
    Stomatitis
         subjects affected / exposed
    22 / 154 (14.29%)
         occurrences all number
    30
    Mouth ulceration
         subjects affected / exposed
    15 / 154 (9.74%)
         occurrences all number
    20
    Nausea
         subjects affected / exposed
    17 / 154 (11.04%)
         occurrences all number
    21
    Respiratory, thoracic and mediastinal disorders
    Dyspnoea
         subjects affected / exposed
    8 / 154 (5.19%)
         occurrences all number
    10
    Cough
         subjects affected / exposed
    32 / 154 (20.78%)
         occurrences all number
    36
    Productive cough
         subjects affected / exposed
    9 / 154 (5.84%)
         occurrences all number
    9
    Skin and subcutaneous tissue disorders
    Rash
         subjects affected / exposed
    26 / 154 (16.88%)
         occurrences all number
    30
    Pruritus
         subjects affected / exposed
    23 / 154 (14.94%)
         occurrences all number
    27
    Dry skin
         subjects affected / exposed
    30 / 154 (19.48%)
         occurrences all number
    37
    Dermatitis acneiform
         subjects affected / exposed
    21 / 154 (13.64%)
         occurrences all number
    32
    Psychiatric disorders
    Insomnia
         subjects affected / exposed
    10 / 154 (6.49%)
         occurrences all number
    11
    Musculoskeletal and connective tissue disorders
    Pain in extremity
         subjects affected / exposed
    10 / 154 (6.49%)
         occurrences all number
    12
    Back pain
         subjects affected / exposed
    18 / 154 (11.69%)
         occurrences all number
    21
    Arthralgia
         subjects affected / exposed
    16 / 154 (10.39%)
         occurrences all number
    20
    Infections and infestations
    Upper respiratory tract infection
         subjects affected / exposed
    24 / 154 (15.58%)
         occurrences all number
    39
    Urinary tract infection
         subjects affected / exposed
    16 / 154 (10.39%)
         occurrences all number
    21
    COVID-19
         subjects affected / exposed
    14 / 154 (9.09%)
         occurrences all number
    14
    Paronychia
         subjects affected / exposed
    36 / 154 (23.38%)
         occurrences all number
    72
    Metabolism and nutrition disorders
    Decreased appetite
         subjects affected / exposed
    27 / 154 (17.53%)
         occurrences all number
    32

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    14 Apr 2023
    There had been substantial amendment of the Protocol Version 2.0 on 05Sep17, version 3.0 on 24 January 2018, Version 4.0 on 25 September 2018, Version 5.0, 28 April 2022, Version 6.0, 02 November 2022 and Version 7.0 14 April 2023

    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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    The status and protocol content of GB trials is no longer updated since 1 January 2021. For the UK, as of 31 January 2021, EU Law applies only to the territory of Northern Ireland (NI) to the extent foreseen in the Protocol on Ireland/NI. Legal notice
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