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    Clinical Trial Results:
    A randomized, multicenter, open phase III study comparing the postoperative use of zoledronic acid versus no treatment in patients with histological tumor residuals after preoperative anthracycline and taxane containing chemotherapy for primary breast cancer (NEO-ADJUVANT TRIAL ADD-ON)

    Summary
    EudraCT number
    2004-002355-14
    Trial protocol
    DE   AT  
    Global end of trial date
    13 Dec 2013

    Results information
    Results version number
    v1(current)
    This version publication date
    27 Jan 2023
    First version publication date
    27 Jan 2023
    Other versions
    Summary report(s)
    CSR Synopsis

    Trial information

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    Trial identification
    Sponsor protocol code
    GBG36
    Additional study identifiers
    ISRCTN number
    -
    US NCT number
    NCT00512993
    WHO universal trial number (UTN)
    -
    Sponsors
    Sponsor organisation name
    GBG Forschungs GmbH
    Sponsor organisation address
    Martin-Behaim-Straße 12, Neu-Isenburg, Germany, 63263
    Public contact
    Medicine and Research, GBG Forschungs GmbH, publications@gbg.de
    Scientific contact
    Medicine and Research, GBG Forschungs GmbH, publications@gbg.de
    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
    05 Dec 2014
    Is this the analysis of the primary completion data?
    No
    Global end of trial reached?
    Yes
    Global end of trial date
    13 Dec 2013
    Was the trial ended prematurely?
    No
    General information about the trial
    Main objective of the trial
    To assess disease-free survival (DFS) after zoledronate given for 5 years versus no postoperative treatment in patients with invasive residual breast cancer (ypT1-4 and/or ypN1-3) after preoperative anthracycline/taxane containing chemotherapy. Of note, DFS was called event-free survival (EFS) in the study protocol.
    Protection of trial subjects
    The trial protocol including amendments, the patient information and the informed consent were reviewed and approved from a properly constituted IRB/IEC for each site prior to the study start. The trial was in compliance with the International Conference on Harmonization (ICH) - Harmonized Tripartite Guideline for Good Clinical Practice (GCP) (E6), and the Commission Directives in the European Community as well as with the applicable German national laws and regulations, and with Declaration of Helsinki and its revisions in all aspects of preparation, monitoring, reporting, auditing, and archiving.
    Background therapy
    -
    Evidence for comparator
    -
    Actual start date of recruitment
    19 Jan 2005
    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
    Austria: 24
    Country: Number of subjects enrolled
    Germany: 655
    Worldwide total number of subjects
    679
    EEA total number of subjects
    679
    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)
    596
    From 65 to 84 years
    83
    85 years and over
    0

    Subject disposition

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    Recruitment
    Recruitment details
    The study was conducted at 87 centers in Germany and Austria.

    Pre-assignment
    Screening details
    Patients with invasive residual breast cancer (ypT1-4 and/or ypN1-3) after preoperative anthracycline/taxane containing chemotherapy.

    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
    Zoledronate
    Arm description
    329 patients with invasive residual breast cancer (ypT1-4 and/or ypN1-3) after preoperative anthracycline/taxane-containing chemotherapy received zoledronate 4 mg i.v. for 5 years
    Arm type
    Experimental

    Investigational medicinal product name
    Letrozole
    Investigational medicinal product code
    Other name
    Zoledronic acid, Zoledronate
    Pharmaceutical forms
    Infusion
    Routes of administration
    Intravenous use
    Dosage and administration details
    Zoledronate 4 mg i.v. for 5 years. Zoledronate was given every 4 weeks for the first 6 months, every 3 months the following 2 years, and every 6 months for the last 2.5 years.

    Investigational medicinal product name
    Calcium and Vitamin D
    Investigational medicinal product code
    Other name
    Pharmaceutical forms
    Oral drops
    Routes of administration
    Oral use
    Dosage and administration details
    Calcium and Vitamin D (as supplement, if applicable)

    Arm title
    Observation
    Arm description
    350 patients with invasive residual breast cancer (ypT1-4 and/or ypN1-3) after preoperative anthracycline/taxane-containing chemotherapy who did not receive postoperative bisphosphonate treatment
    Arm type
    No intervention

    Investigational medicinal product name
    No investigational medicinal product assigned in this arm
    Number of subjects in period 1
    Zoledronate Observation
    Started
    329
    350
    Completed
    179
    350
    Not completed
    150
    0
         death
    7
    -
         Adverse event, non-fatal
    10
    -
         patient wish
    28
    -
         Unknown
    35
    -
         Lost to follow-up
    5
    -
         disease progression
    65
    -

    Baseline characteristics

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    Baseline characteristics reporting groups
    Reporting group title
    Zoledronate
    Reporting group description
    329 patients with invasive residual breast cancer (ypT1-4 and/or ypN1-3) after preoperative anthracycline/taxane-containing chemotherapy received zoledronate 4 mg i.v. for 5 years

    Reporting group title
    Observation
    Reporting group description
    350 patients with invasive residual breast cancer (ypT1-4 and/or ypN1-3) after preoperative anthracycline/taxane-containing chemotherapy who did not receive postoperative bisphosphonate treatment

    Reporting group values
    Zoledronate Observation Total
    Number of subjects
    329 350 679
    Age categorical
    Units: Subjects
        Adults (18-64 years)
    291 305 596
        From 65-84 years
    38 45 83
    Age continuous
    age at randomization, years
    Units: years
        median (standard deviation)
    50 ± 9.9 50 ± 9.9 -
    Gender categorical
    Units: Subjects
        Female
    329 350 679
        Male
    0 0 0

    End points

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    End points reporting groups
    Reporting group title
    Zoledronate
    Reporting group description
    329 patients with invasive residual breast cancer (ypT1-4 and/or ypN1-3) after preoperative anthracycline/taxane-containing chemotherapy received zoledronate 4 mg i.v. for 5 years

    Reporting group title
    Observation
    Reporting group description
    350 patients with invasive residual breast cancer (ypT1-4 and/or ypN1-3) after preoperative anthracycline/taxane-containing chemotherapy who did not receive postoperative bisphosphonate treatment

    Primary: DFS

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    End point title
    DFS
    End point description
    DFS was defined as the time in months between the randomization and any event, i.e. invasive or non-invasive ipsilateral locoregional, contralateral, distant recurrence, secondary primaries or death due to any cause (corresponding to DFS-DCIS). Overall survival (OS) was defined as the interval between the date of randomization and the date of death due to any cause. Patients without documented event were censored at the date of the last contact. Of note, DFS was called event-free survival (EFS) in the study protocol.
    End point type
    Primary
    End point timeframe
    5 years.
    End point values
    Zoledronate Observation
    Number of subjects analysed
    329
    350
    Units: events
    82
    87
    Statistical analysis title
    DFS
    Comparison groups
    Zoledronate v Observation
    Number of subjects included in analysis
    679
    Analysis specification
    Pre-specified
    Analysis type
    superiority
    P-value
    = 0.789
    Method
    Logrank
    Parameter type
    Hazard ratio (HR)
    Point estimate
    0.96
    Confidence interval
         level
    95%
         sides
    2-sided
         lower limit
    0.71
         upper limit
    1.3

    Adverse events

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    Adverse events information
    Timeframe for reporting adverse events
    All AEs occurring during the treatment period were reported.
    Adverse event reporting additional description
    AEs are reported per patient during the complete treatment duration for the overall safety population (N=467). Note, overall number of single AE occurrences per term was not assessed, only per patient
    Assessment type
    Systematic
    Dictionary used for adverse event reporting
    Dictionary name
    MedDRA
    Dictionary version
    0
    Reporting groups
    Reporting group title
    Observation
    Reporting group description
    -

    Reporting group title
    Zoledronate
    Reporting group description
    zoledronate 4 mg i.v. for 5 years

    Serious adverse events
    Observation Zoledronate
    Total subjects affected by serious adverse events
         subjects affected / exposed
    21 / 239 (8.79%)
    60 / 228 (26.32%)
         number of deaths (all causes)
    0
    0
         number of deaths resulting from adverse events
    0
    0
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Myeloid leukaemia
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Benign breast neoplasm
         subjects affected / exposed
    1 / 239 (0.42%)
    2 / 228 (0.88%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Fibroadenoma of breast
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Ovarian adenoma
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Ovarian cyst
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Suspicion of metastases
         subjects affected / exposed
    0 / 239 (0.00%)
    2 / 228 (0.88%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Thyroid cancer
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    cognitive disturbance
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Vascular disorders
    Collapse
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Hypertension
         subjects affected / exposed
    0 / 239 (0.00%)
    2 / 228 (0.88%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Hypotesia
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Subclavian vein thrombosis
         subjects affected / exposed
    1 / 239 (0.42%)
    2 / 228 (0.88%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Surgical and medical procedures
    Colon polypectomy
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Pregnancy, puerperium and perinatal conditions
    Premature labour
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    General disorders and administration site conditions
    General disorder
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Thoracic pain
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Reproductive system and breast disorders
    Fallopian tube cyst
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Respiratory, thoracic and mediastinal disorders
    Cardiopulmonary arrest
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Dyspnoea
         subjects affected / exposed
    0 / 239 (0.00%)
    2 / 228 (0.88%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Psychiatric disorders
    Bipolar disorder
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Fear of disease
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Injury, poisoning and procedural complications
    Fracture
    Additional description: Arm fracture
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Clavicle fracture
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Meniscus lesion
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Accident
    Additional description: Road traffic accident
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Tibia fracture
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Unspecific injury
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Congenital, familial and genetic disorders
    Vestibular disorder
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Cardiac disorders
    Left ventricular dysfunction
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Left ventricular failure
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Myocardial infarction
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Pleural effusion
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Sinus tachycardia
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Tachyarrhythmia
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Nervous system disorders
    Cognitive disorder
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Coma
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 1
    0 / 0
    Dizziness
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Weakness
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Gastrointestinal disorders
    Epigastric discomfort
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Pancreatitis
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    1 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Small bowel obstruction
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Hepatobiliary disorders
    Calculous cholecystitis
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Skin and subcutaneous tissue disorders
    Erythema
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Renal and urinary disorders
    Nephrolithiasis
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    pain back
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Musculoskeletal and connective tissue disorders
    Arnold-Chiari malformation
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Arthralgia
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Arthrosis
    Additional description: Arthrosis NOS
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Lumbar disc herniation
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Osteonecrosis of jaw
         subjects affected / exposed
    0 / 239 (0.00%)
    5 / 228 (2.19%)
         occurrences causally related to treatment / all
    0 / 0
    5 / 5
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Pain in arm
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Prolapsed lumbar disc
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Synovitis
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Infections and infestations
    Diverticulitis
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Allergy
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Appendicitis
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Bronchopneumopathy
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Catheter site infection
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    cold
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Erythema
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Herpes zoster
         subjects affected / exposed
    1 / 239 (0.42%)
    2 / 228 (0.88%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 2
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Mastitis
         subjects affected / exposed
    1 / 239 (0.42%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Osteomyelitis
         subjects affected / exposed
    1 / 239 (0.42%)
    0 / 228 (0.00%)
         occurrences causally related to treatment / all
    0 / 1
    0 / 0
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Fever
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    1 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Metabolism and nutrition disorders
    Hyperglycaemia
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         occurrences causally related to treatment / all
    0 / 0
    0 / 1
         deaths causally related to treatment / all
    0 / 0
    0 / 0
    Hyponatraemia
         subjects affected / exposed
    0 / 239 (0.00%)
    1 / 228 (0.44%)
         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
    Observation Zoledronate
    Total subjects affected by non serious adverse events
         subjects affected / exposed
    179 / 239 (74.90%)
    197 / 228 (86.40%)
    Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    Neoplasms benign
         subjects affected / exposed
    6 / 239 (2.51%)
    5 / 228 (2.19%)
         occurrences all number
    6
    5
    Vascular disorders
    other Vascular disorders
         subjects affected / exposed
    39 / 239 (16.32%)
    36 / 228 (15.79%)
         occurrences all number
    39
    36
    Hot flushes
         subjects affected / exposed
    49 / 239 (20.50%)
    49 / 228 (21.49%)
         occurrences all number
    49
    49
    Oedema
         subjects affected / exposed
    27 / 239 (11.30%)
    31 / 228 (13.60%)
         occurrences all number
    27
    31
    Surgical and medical procedures
    Surgical and medical prosedures
         subjects affected / exposed
    4 / 239 (1.67%)
    8 / 228 (3.51%)
         occurrences all number
    4
    8
    General disorders and administration site conditions
    Fever without neutropenia
         subjects affected / exposed
    1 / 239 (0.42%)
    28 / 228 (12.28%)
         occurrences all number
    1
    28
    Fatigue
         subjects affected / exposed
    36 / 239 (15.06%)
    65 / 228 (28.51%)
         occurrences all number
    36
    65
    Pain NOS
         subjects affected / exposed
    18 / 239 (7.53%)
    21 / 228 (9.21%)
         occurrences all number
    18
    21
    Other general disorders
         subjects affected / exposed
    2 / 239 (0.84%)
    16 / 228 (7.02%)
         occurrences all number
    2
    16
    Immune system disorders
    Immune system disorders
         subjects affected / exposed
    4 / 239 (1.67%)
    7 / 228 (3.07%)
         occurrences all number
    4
    7
    Reproductive system and breast disorders
    Other reproductive system disorders
         subjects affected / exposed
    27 / 239 (11.30%)
    23 / 228 (10.09%)
         occurrences all number
    27
    23
    Respiratory, thoracic and mediastinal disorders
    Respiratory
         subjects affected / exposed
    25 / 239 (10.46%)
    28 / 228 (12.28%)
         occurrences all number
    25
    28
    Psychiatric disorders
    Psychiatric disorders
         subjects affected / exposed
    31 / 239 (12.97%)
    30 / 228 (13.16%)
         occurrences all number
    31
    30
    Investigations
    Investigations
         subjects affected / exposed
    1 / 239 (0.42%)
    1 / 228 (0.44%)
         occurrences all number
    1
    1
    Injury, poisoning and procedural complications
    Injury
         subjects affected / exposed
    9 / 239 (3.77%)
    12 / 228 (5.26%)
         occurrences all number
    9
    12
    Cardiac disorders
    Cardiac disorders
         subjects affected / exposed
    8 / 239 (3.35%)
    11 / 228 (4.82%)
         occurrences all number
    8
    11
    Nervous system disorders
    Sensory neuropathy
         subjects affected / exposed
    31 / 239 (12.97%)
    46 / 228 (20.18%)
         occurrences all number
    31
    46
    Other neurological disorders
         subjects affected / exposed
    19 / 239 (7.95%)
    32 / 228 (14.04%)
         occurrences all number
    19
    32
    Headache
         subjects affected / exposed
    13 / 239 (5.44%)
    19 / 228 (8.33%)
         occurrences all number
    13
    19
    Blood and lymphatic system disorders
    Blood and lymphatic system disorders
         subjects affected / exposed
    13 / 239 (5.44%)
    14 / 228 (6.14%)
         occurrences all number
    13
    14
    Ear and labyrinth disorders
    Ear and labyrinth disorders
         subjects affected / exposed
    4 / 239 (1.67%)
    2 / 228 (0.88%)
         occurrences all number
    4
    2
    Eye disorders
    Eye disorders
         subjects affected / exposed
    12 / 239 (5.02%)
    16 / 228 (7.02%)
         occurrences all number
    12
    16
    Gastrointestinal disorders
    Gastrointestinal disorders
         subjects affected / exposed
    39 / 239 (16.32%)
    61 / 228 (26.75%)
         occurrences all number
    39
    61
    Hepatobiliary disorders
    Hepatobiliary disorders
         subjects affected / exposed
    13 / 239 (5.44%)
    13 / 228 (5.70%)
         occurrences all number
    13
    13
    Skin and subcutaneous tissue disorders
    Other skin and subcutaneous tissues disorders
         subjects affected / exposed
    26 / 239 (10.88%)
    42 / 228 (18.42%)
         occurrences all number
    26
    42
    Alopecia
         subjects affected / exposed
    18 / 239 (7.53%)
    23 / 228 (10.09%)
         occurrences all number
    18
    23
    Renal and urinary disorders
    Renal and urinary disorders
         subjects affected / exposed
    4 / 239 (1.67%)
    7 / 228 (3.07%)
         occurrences all number
    4
    7
    Endocrine disorders
    Endocrine disorders
         subjects affected / exposed
    6 / 239 (2.51%)
    3 / 228 (1.32%)
         occurrences all number
    6
    3
    Musculoskeletal and connective tissue disorders
    Arthralgia
         subjects affected / exposed
    54 / 239 (22.59%)
    63 / 228 (27.63%)
         occurrences all number
    54
    63
    Bone pain
         subjects affected / exposed
    41 / 239 (17.15%)
    62 / 228 (27.19%)
         occurrences all number
    41
    62
    Other musculo-skeletal disorders
         subjects affected / exposed
    48 / 239 (20.08%)
    48 / 228 (21.05%)
         occurrences all number
    48
    48
    Myalgia
         subjects affected / exposed
    10 / 239 (4.18%)
    29 / 228 (12.72%)
         occurrences all number
    10
    29
    Back pain
         subjects affected / exposed
    12 / 239 (5.02%)
    19 / 228 (8.33%)
         occurrences all number
    12
    19
    Infections and infestations
    Infection
         subjects affected / exposed
    40 / 239 (16.74%)
    53 / 228 (23.25%)
         occurrences all number
    40
    53
    Metabolism and nutrition disorders
    Metabolism and nutrition disorders
         subjects affected / exposed
    26 / 239 (10.88%)
    15 / 228 (6.58%)
         occurrences all number
    26
    15

    More information

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    Substantial protocol amendments (globally)

    Were there any global substantial amendments to the protocol? Yes
    Date
    Amendment
    01 Dec 2005
    Amendment 1 of the study protocol (version 2 from 01.12.2005) included the following changes: - Inclusion for postneoadjuvant treatment for all prior neoadjuvant patients (not only study patients as add on to neoadjuvant protocol) - Letrozole could be given only to menopausal women older than 50 years. Use not mandatory within the study, only highly recommended - Dose reduction scheme for zolendronic acid for patients with reduced renal function - Exclusion of patients with a history of dental problems (infection of the teeth or jawbone [maxilla or mandibular]; dental or fixture trauma, or a current or prior diagnosis of osteonecrosis of the jaw, of exposed bone in the mouth, or of slow healing after dental procedures).
    15 Jun 2007
    Amendment 2 of the study protocol (version 3 from 15.06.2007) included the following changes: - The study design/methodology was amended to multinational trial conducted in cooperation with the Austrian Breast & Colorectal Cancer Study Group (ABCSG) - Patients with ypT1-4 were also eligible - In the rational of the trial, participation in a preoperative chemotherapy trial investigating anthracycline and taxan based regimen was allowed, but not mandatory for all patients - Primary objective was modified as follows: to determine the disease-free survival (DFS)* after zoledronic acid for 5 years versus no postoperative treatment in patients with invasive residual breast cancer (ypT1-4 and/or ypN1-3) after preoperative anthracycline/taxane containing chemotherapy - The dose of vitamin D used as premedication or supportive therapy was increased to 880 I.U - Statistical considerations were changed as follows: a 5-year DFS* rate of 67.2% was expected in the zoledronate arm corresponding to a hazard ratio of 0.73. A two-sided log-rank test was planned with a α 5%, 1-ß of 80%, and an exponential drop-out rate of 5% over an accrual period of 48 months and a followup period of 48 months. To compare proportional hazards without covariates 316 DFS events from 654 randomised patients were needed (section 9.1 of the CSR) - An interim analysis for efficacy with adjusted alpha was planned after 158 events were observed - After the development of bone metastases, patients of both arms should receive bisphosphonates according to local treatment guidelines - Changes in the administrative structure

    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

    Online references

    http://www.ncbi.nlm.nih.gov/pubmed/27323347
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