Flag of the European Union EU Clinical Trials Register Help

Clinical trials

The European Union Clinical Trials Register   allows you to search for protocol and results information on:
  • interventional clinical trials that were approved in the European Union (EU)/European Economic Area (EEA) under the Clinical Trials Directive 2001/20/EC
  • clinical trials conducted outside the EU/EEA that are linked to European paediatric-medicine development

    • EU/EEA interventional clinical trials approved under or transitioned to the Clinical Trial Regulation 536/2014 are publicly accessible through the
    Clinical Trials Information System (CTIS).

    The EU Clinical Trials Register currently displays   43871   clinical trials with a EudraCT protocol, of which   7290   are clinical trials conducted with subjects less than 18 years old.   The register also displays information on   18700   older paediatric trials (in scope of Article 45 of the Paediatric Regulation (EC) No 1901/2006).

    Phase 1 trials conducted solely on adults and that are not part of an agreed paediatric investigation plan (PIP) are not publicly available (see Frequently Asked Questions ).  
     
    Examples: Cancer AND drug name. Pneumonia AND sponsor name.
    How to search [pdf]
    Search Tips: Under advanced search you can use filters for Country, Age Group, Gender, Trial Phase, Trial Status, Date Range, Rare Diseases and Orphan Designation. For these items you should use the filters and not add them to your search terms in the text field.
    Advanced Search: Search tools
     

    < Back to search results

    Print Download

    Summary
    EudraCT Number:2007-001370-88
    Sponsor's Protocol Code Number:IBCSG 35-07/ BIG 1-07
    National Competent Authority:Sweden - MPA
    Clinical Trial Type:EEA CTA
    Trial Status:Completed
    Date on which this record was first entered in the EudraCT database:2007-09-21
    Trial results View results
    Index
    A. PROTOCOL INFORMATION
    B. SPONSOR INFORMATION
    C. APPLICANT IDENTIFICATION
    D. IMP IDENTIFICATION
    D.8 INFORMATION ON PLACEBO
    E. GENERAL INFORMATION ON THE TRIAL
    F. POPULATION OF TRIAL SUBJECTS
    G. INVESTIGATOR NETWORKS TO BE INVOLVED IN THE TRIAL
    N. REVIEW BY THE COMPETENT AUTHORITY OR ETHICS COMMITTEE IN THE COUNTRY CONCERNED
    P. END OF TRIAL
    Expand All   Collapse All
    A. Protocol Information
    A.1Member State ConcernedSweden - MPA
    A.2EudraCT number2007-001370-88
    A.3Full title of the trial
    A phase III trial evaluating the role of continuous letrozole versus intermittent letrozole following 4 to 6 years of prior adjuvant endocrine therapy for postmenopausal women with hormone-receptor positive, node positive early stage breast cancer
    A.3.2Name or abbreviated title of the trial where available
    Study of Letrozole Extension (SOLE)
    A.4.1Sponsor's protocol code numberIBCSG 35-07/ BIG 1-07
    A.7Trial is part of a Paediatric Investigation Plan Information not present in EudraCT
    A.8EMA Decision number of Paediatric Investigation Plan
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorInternational Breast Cancer Study Group (IBCSG)
    B.1.3.4CountrySwitzerland
    B.3.1 and B.3.2Status of the sponsorNon-Commercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing support
    B.4.2Country
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisation
    B.5.2Functional name of contact point
    D. IMP Identification
    D.IMP: 1
    D.1.2 and D.1.3IMP RoleTest
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation Yes
    D.2.1.1.1Trade name Femara 2.5mg
    D.2.1.1.2Name of the Marketing Authorisation holderNovartis Svergie AB, Täby, Sweden
    D.2.1.2Country which granted the Marketing AuthorisationSweden
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community No
    D.2.5.1Orphan drug designation number
    D.3 Description of the IMP
    D.3.1Product nameFemara
    D.3.2Product code not applicable
    D.3.4Pharmaceutical form Film-coated tablet
    D.3.4.1Specific paediatric formulation Information not present in EudraCT
    D.3.7Routes of administration for this IMPOral use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNLetrozole
    D.3.9.1CAS number 112809-51-5
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number2.5
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) No
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) Information not present in EudraCT
    D.3.11.3.1Somatic cell therapy medicinal product No
    D.3.11.3.2Gene therapy medical product No
    D.3.11.3.3Tissue Engineered Product Information not present in EudraCT
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) Information not present in EudraCT
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product Information not present in EudraCT
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy Information not present in EudraCT
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product Information not present in EudraCT
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.IMP: 2
    D.1.2 and D.1.3IMP RoleComparator
    D.2 Status of the IMP to be used in the clinical trial
    D.2.1IMP to be used in the trial has a marketing authorisation Yes
    D.2.1.1.1Trade name Femara 2.5mg
    D.2.1.1.2Name of the Marketing Authorisation holderNovartis Svergie AB, Täby, Sweden
    D.2.1.2Country which granted the Marketing AuthorisationSweden
    D.2.5The IMP has been designated in this indication as an orphan drug in the Community No
    D.2.5.1Orphan drug designation number
    D.3 Description of the IMP
    D.3.1Product nameFemara
    D.3.2Product code not applicable
    D.3.4Pharmaceutical form Film-coated tablet
    D.3.4.1Specific paediatric formulation Information not present in EudraCT
    D.3.7Routes of administration for this IMPOral use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNLetrozole
    D.3.9.1CAS number 112809-51-5
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number2.5
    D.3.11 The IMP contains an:
    D.3.11.1Active substance of chemical origin Yes
    D.3.11.2Active substance of biological/ biotechnological origin (other than Advanced Therapy IMP (ATIMP) No
    The IMP is a:
    D.3.11.3Advanced Therapy IMP (ATIMP) Information not present in EudraCT
    D.3.11.3.1Somatic cell therapy medicinal product No
    D.3.11.3.2Gene therapy medical product No
    D.3.11.3.3Tissue Engineered Product Information not present in EudraCT
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) Information not present in EudraCT
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product Information not present in EudraCT
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy Information not present in EudraCT
    D.3.11.5Radiopharmaceutical medicinal product No
    D.3.11.6Immunological medicinal product (such as vaccine, allergen, immune serum) No
    D.3.11.7Plasma derived medicinal product No
    D.3.11.8Extractive medicinal product No
    D.3.11.9Recombinant medicinal product Information not present in EudraCT
    D.3.11.10Medicinal product containing genetically modified organisms No
    D.3.11.11Herbal medicinal product No
    D.3.11.12Homeopathic medicinal product No
    D.3.11.13Another type of medicinal product No
    D.8 Information on Placebo
    E. General Information on the Trial
    E.1 Medical condition or disease under investigation
    E.1.1Medical condition(s) being investigated
    Postmenopausal women who are disease-free following 4-6 years of prior adjuvant endocrine therapy with selective estrogen receptor modulator(s) (SERM) and/or aromatase inhibitor(s) (AI) for endocrine-responsive, node-positive operable breast cancer.
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 9.1
    E.1.2Level LLT
    E.1.2Classification code 10057654
    E.1.2Term Breast cancer female
    E.1.3Condition being studied is a rare disease No
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    This trial will compare continuous letrozole for five years with intermittent letrozole over a five year period for postmenopausal women who are disease-free following 4-6 years of prior adjuvant endocrine therapy with SERM(s) and/or AI(s) for endocrine-responsive node-positive operable breast cancer.
    E.2.2Secondary objectives of the trial
    Overall survival (OS), distant disease-free survival (DDFS), breast cancer
    free interval (BCFI), sites of first failure, second (non-breast) malignancies, deaths without prior cancer events, and adverse events.
    E.2.3Trial contains a sub-study Yes
    E.2.3.1Full title, date and version of each sub-study and their related objectives
    Patient Reported Symptoms and Quality of Life Substudy, Appendix III to the main IBCSG 35-07/ BIG 1-07 Protocol, Version 1.2, 06.07.2007

    The objective of this QL substudy is to compare differences in patient-reported symptoms and quality of life between continuous letrozole for 5 years and intermittent letrozole over a 5-year period among postmenopausal women who are disease-free following 4 to 6 years of prior adjuvant endocrine therapy for endocrine-responsive node-positive operable breast cancer.
    E.3Principal inclusion criteria
    Patients must be postmenopausal using any one of the following criteria. Because letrozole is not effective in pre- or perimenopausal patients, and may stimulate ovarian function, definitive confirmation of postmenopausal status is required:
    Patients of any age who have had a bilateral oophorectomy (including radiation
    castration AND amenorrheic for > 3 months)
    Patients 56 years old or older. If the patient has any evidence of ovarian function,
    biochemical evidence of definite postmenopausal status (defined as estradiol, LH,
    and FSH in the postmenopausal range) is required.
    Patients 55 years old or younger must have biochemical evidence of definite
    postmenopausal status (defined as estradiol, LH, and FSH in the postmenopausal
    range. Patients who have received prior LHRH analogue within the last year are
    eligible if they have definite evidence of postmenopausal status as defined above.

    Patients must be accessible for follow-up.

    At diagnosis, patients must have had operable, non-inflammatory breast cancer.

    Patients must be clinically disease-free at randomization.

    Patients must have had steroid hormone receptor positive tumors (ER and/or PgR), determined by immunohistochemistry, after primary surgery and before commencement of prior endocrine therapy.

    Following primary surgery, eligible patients must have had evidence of lymph node involvement either in the axillary or internal mammary nodes, but not supraclavicular nodes.

    There must have been no evidence of recurrent disease or distant metastatic disease at any time prior to randomization.

    Patients must have had proper local treatment including surgery with or without radiotherapy for primary breast cancer with no known clinical residual loco-regional disease.

    Patients must have clinically adequate hepatic function.

    Patients must have completed 4 to 6 years of prior adjuvant endocrine therapy with SERM(s), aromatase inhibitor(s), or a sequential combination of both. When calculating 4-6 years, neoadjuvant endocrine therapy should not be included.

    Patients must have stopped prior endocrine SERM/AI therapy, and must be randomized within 12 months (1 year) of the last dose of prior endocrine SERM/AI therapy.

    Patients may have received any type of prior adjuvant therapy, including but not limited to neoadjuvant chemotherapy, neoadjuvant endocrine therapy, adjuvant chemotherapy, trastuzumab, ovarian ablation, GnRH analogues, lapatinib.

    Patients must have stopped hormone replacement therapy (HRT), bisphosphonates (except for treatment of bone loss), or any investigational agent at randomization. (Note: These agents are also not permitted during trial treatment.)

    Pathology material from the primary tumor must be available for submission for
    central review as part of the quality control measures for this protocol.

    Written Informed Consent (IC) and written consent to pathology material submission must be signed and dated by the patient and the
    investigator prior to randomization.
    E.4Principal exclusion criteria
    Patients who have had bilateral breast cancer.

    Patients who have had a bone fracture due to osteoporosis at any time during the 4-6 years of prior endocrine SERM/AI therapy.

    Patients who have had any previous or concomitant malignancy EXCEPT adequately treated: basal or squamous cell carcinoma of the skin, in situ carcinoma of the cervix or bladder, contra- or ipsilateral in situ breast carcinoma.

    Patients who have had any other non-malignant systemic diseases (cardiovascular, renal, lung, etc.) that would prevent prolonged follow-up.

    Patients with psychiatric, addictive, or any disorder which compromises compliance with protocol requirements.
    E.5 End points
    E.5.1Primary end point(s)
    Disease-free survival (includes second (non-breast) malignancies and deaths).
    Disease-free survival (DFS) is defined as the time from randomization to local (including invasive recurrence restricted to the breast after breast conserving treatment), regional or distant relapse, contralateral breast cancer, appearance of a second (non-breast) malignancy, or death from any cause, whichever occurs first. Appearance of DCIS or LCIS either in the ipsilateral or in the contralateral breast will not be considered as an event for DFS.
    E.6 and E.7 Scope of the trial
    E.6Scope of the trial
    E.6.1Diagnosis No
    E.6.2Prophylaxis No
    E.6.3Therapy Yes
    E.6.4Safety Yes
    E.6.5Efficacy Yes
    E.6.6Pharmacokinetic No
    E.6.7Pharmacodynamic No
    E.6.8Bioequivalence No
    E.6.9Dose response No
    E.6.10Pharmacogenetic No
    E.6.11Pharmacogenomic No
    E.6.12Pharmacoeconomic No
    E.6.13Others Yes
    E.6.13.1Other scope of the trial description
    Quality of life
    E.7Trial type and phase
    E.7.1Human pharmacology (Phase I) No
    E.7.1.1First administration to humans No
    E.7.1.2Bioequivalence study No
    E.7.1.3Other No
    E.7.1.3.1Other trial type description
    E.7.2Therapeutic exploratory (Phase II) No
    E.7.3Therapeutic confirmatory (Phase III) Yes
    E.7.4Therapeutic use (Phase IV) No
    E.8 Design of the trial
    E.8.1Controlled Yes
    E.8.1.1Randomised Yes
    E.8.1.2Open Yes
    E.8.1.3Single blind No
    E.8.1.4Double blind No
    E.8.1.5Parallel group Yes
    E.8.1.6Cross over No
    E.8.1.7Other No
    E.8.2 Comparator of controlled trial
    E.8.2.1Other medicinal product(s) No
    E.8.2.2Placebo No
    E.8.2.3Other Yes
    E.8.2.3.1Comparator description
    Same extended Letrozole 2.5mg per day continuously for 5 years
    E.8.3 The trial involves single site in the Member State concerned Information not present in EudraCT
    E.8.4 The trial involves multiple sites in the Member State concerned Information not present in EudraCT
    E.8.4.1Number of sites anticipated in Member State concerned7
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA60
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA Yes
    E.8.6.2Trial being conducted completely outside of the EEA Information not present in EudraCT
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    E.8.7Trial has a data monitoring committee Yes
    E.8.8 Definition of the end of the trial and justification where it is not the last visit of the last subject undergoing the trial
    The target number of events for the final analysis is 647, and interim analyses are planned after 40% and 70% information (259 and 453 events observed respectively). To achieve this 4800 patients, 1600 pts over 3 years with 1 year start-up and an additional 5 year follow-up are needed.
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years14
    E.8.9.1In the Member State concerned months
    E.8.9.1In the Member State concerned days
    E.8.9.2In all countries concerned by the trial years14
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 No
    F.1.1.1In Utero Information not present in EudraCT
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) Information not present in EudraCT
    F.1.1.3Newborns (0-27 days) Information not present in EudraCT
    F.1.1.4Infants and toddlers (28 days-23 months) Information not present in EudraCT
    F.1.1.5Children (2-11years) Information not present in EudraCT
    F.1.1.6Adolescents (12-17 years) Information not present in EudraCT
    F.1.2Adults (18-64 years) Yes
    F.1.3Elderly (>=65 years) Yes
    F.2 Gender
    F.2.1Female Yes
    F.2.2Male No
    F.3 Group of trial subjects
    F.3.1Healthy volunteers No
    F.3.2Patients Yes
    F.3.3Specific vulnerable populations No
    F.3.3.1Women of childbearing potential not using contraception No
    F.3.3.2Women of child-bearing potential using contraception No
    F.3.3.3Pregnant women No
    F.3.3.4Nursing women No
    F.3.3.5Emergency situation No
    F.3.3.6Subjects incapable of giving consent personally No
    F.3.3.7Others No
    F.4 Planned number of subjects to be included
    F.4.1In the member state200
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 3500
    F.4.2.2In the whole clinical trial 4800
    F.5 Plans for treatment or care after the subject has ended the participation in the trial (if it is different from the expected normal treatment of that condition)
    Follow-up every 6 months during years 1-5, and thereafter yearly until death
    G. Investigator Networks to be involved in the Trial
    N. Review by the Competent Authority or Ethics Committee in the country concerned
    N.Competent Authority Decision Authorised
    N.Date of Competent Authority Decision2007-11-06
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2007-10-19
    P. End of Trial
    P.End of Trial StatusCompleted
    P.Date of the global end of the trial2018-12-31
    For support, Contact us.
    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
    As of 31 January 2023, all EU/EEA initial clinical trial applications must be submitted through CTIS . Updated EudraCT trials information and information on PIP/Art 46 trials conducted exclusively in third countries continues to be submitted through EudraCT and published on this website.

    European Medicines Agency © 1995-Sat May 04 12:56:31 CEST 2024 | Domenico Scarlattilaan 6, 1083 HS Amsterdam, The Netherlands
    EMA HMA