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    Summary
    EudraCT Number:2018-002990-24
    Sponsor's Protocol Code Number:RAD1901-308
    National Competent Authority:France - ANSM
    Clinical Trial Type:EEA CTA
    Trial Status:Ongoing
    Date on which this record was first entered in the EudraCT database:2019-03-19
    Trial 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 ConcernedFrance - ANSM
    A.2EudraCT number2018-002990-24
    A.3Full title of the trial
    Elacestrant Monotherapy vs. Standard of Care for the Treatment of Patients with ER+/HER2- Advanced Breast Cancer Following CDK4/6 Inhibitor Therapy: A Phase 3 Randomized, Open-Label, Active-Controlled, Multicenter Trial (EMERALD)
    Elacestrant en monothérapie contre traitement standard du cancer du sein métastatique RO+ HER2- après traitement préalable par inhibiteur de CDK4/6: une étude de phase 3, randomisée, ouverte, contrôlée et multicentrique (EMERALD)
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    Elacestrant Monotherapy for the Treatment of ER+/HER2- Advanced Breast Cancer Following CDK4/6 Inhibitor Therapy: A Phase 3 Randomized, Open-Label, Active-Controlled, Multicenter Trial
    Elacestrant en monothérapie pour le traitement d’un cancer du sein métastatique RO+ HER2- après traitement préalable par inhibiteur de CDK4/6 : un essai de phase 3 randomisé, ouvert, contrôlé contre un agent actif, multicentrique
    A.3.2Name or abbreviated title of the trial where available
    EMERALD
    A.4.1Sponsor's protocol code numberRAD1901-308
    A.5.4Other Identifiers
    Name:IND No.Number:124748
    A.7Trial is part of a Paediatric Investigation Plan No
    A.8EMA Decision number of Paediatric Investigation Plan
    B. Sponsor Information
    B.Sponsor: 1
    B.1.1Name of SponsorRadius Pharmaceuticals Inc.
    B.1.3.4CountryUnited States
    B.3.1 and B.3.2Status of the sponsorCommercial
    B.4 Source(s) of Monetary or Material Support for the clinical trial:
    B.4.1Name of organisation providing supportRadius Pharmaceuticals Inc.
    B.4.2CountryUnited States
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationRadius Pharmaceuticals Inc.
    B.5.2Functional name of contact pointClinical Operations
    B.5.3 Address:
    B.5.3.1Street Address950 Winter Street
    B.5.3.2Town/ cityWaltham
    B.5.3.3Post codeMA 02451
    B.5.3.4CountryUnited States
    B.5.4Telephone number+16175514000
    B.5.5Fax number+16175514701
    B.5.6E-mailRAD1901-308@radiuspharm.com
    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 No
    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 nameElacestrant
    D.3.2Product code RAD1901 2HCl
    D.3.4Pharmaceutical form Film-coated tablet
    D.3.4.1Specific paediatric formulation No
    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 INNELACESTRANT
    D.3.9.1CAS number 1349723-93-8
    D.3.9.2Current sponsor codeRAD1901 Dihydrochloride
    D.3.9.3Other descriptive nameElacestrant Dihydrochloride
    D.3.9.4EV Substance CodeSUB184531
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number100
    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) No
    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 No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    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 No
    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 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 No
    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 nameElacestrant
    D.3.2Product code RAD1901 2HCl
    D.3.4Pharmaceutical form Film-coated tablet
    D.3.4.1Specific paediatric formulation No
    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 INNELACESTRANT
    D.3.9.1CAS number 1349723-93-8
    D.3.9.2Current sponsor codeRAD1901 Dihydrochloride
    D.3.9.3Other descriptive nameElacestrant Dihydrochloride
    D.3.9.4EV Substance CodeSUB184531
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number400
    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) No
    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 No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    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 No
    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: 3
    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 Faslodex 250 mg solution for injection.
    D.2.1.1.2Name of the Marketing Authorisation holderAstraZeneca AB, SE-151 85 Södertälje, Sweden
    D.2.1.2Country which granted the Marketing AuthorisationEuropean Union
    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.3.4Pharmaceutical form Solution for injection
    D.3.4.1Specific paediatric formulation No
    D.3.7Routes of administration for this IMPIntramuscular use
    D.3.8 to D.3.10 IMP Identification Details (Active Substances)
    D.3.8INN - Proposed INNFulvestrant
    D.3.9.1CAS number 129453-61-8
    D.3.9.3Other descriptive nameFULVESTRANT
    D.3.9.4EV Substance CodeSUB13933MIG
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number50
    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) No
    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 No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    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 No
    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: 4
    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 ARIMIDEX 1 mg filmom obložene tablete
    D.2.1.1.2Name of the Marketing Authorisation holderAstraZeneca d.o.o., Radnička cesta 80, 10000 Zagreb
    D.2.1.2Country which granted the Marketing AuthorisationCroatia
    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.3.4Pharmaceutical form Film-coated tablet
    D.3.4.1Specific paediatric formulation No
    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 INNAnastrozole
    D.3.9.1CAS number 120511-73-1
    D.3.9.3Other descriptive nameANASTROZOLE
    D.3.9.4EV Substance CodeSUB05502MIG
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number1
    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) No
    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 No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    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 No
    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: 5
    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 2,5 mg filmom obloţene tablete
    D.2.1.1.2Name of the Marketing Authorisation holderNovartis Hrvatska d.o.o., Radnička cesta 37b, 10 000 Zagreb
    D.2.1.2Country which granted the Marketing AuthorisationCroatia
    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.3.4Pharmaceutical form Film-coated tablet
    D.3.4.1Specific paediatric formulation No
    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.3.9.4EV Substance CodeSUB08444MIG
    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) No
    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 No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    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 No
    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: 6
    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 Aromasin 25 mg tablete
    D.2.1.1.2Name of the Marketing Authorisation holderPFIZER Croatia d.o.o., Slavonska avenija 6, 10000 Zagreb
    D.2.1.2Country which granted the Marketing AuthorisationCroatia
    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.3.4Pharmaceutical form Coated tablet
    D.3.4.1Specific paediatric formulation No
    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 INNExemestane
    D.3.9.1CAS number 107868-30-4
    D.3.9.3Other descriptive nameEXEMESTANE
    D.3.9.4EV Substance CodeSUB07492MIG
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number25
    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) No
    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 No
    D.3.11.3.4Combination ATIMP (i.e. one involving a medical device) No
    D.3.11.3.5Committee on Advanced therapies (CAT) has issued a classification for this product No
    D.3.11.4Combination product that includes a device, but does not involve an Advanced Therapy No
    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 No
    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
    Advanced breast cancer
    Cancer du sein avancé
    E.1.1.1Medical condition in easily understood language
    Advanced breast cancer
    Cancer du sein avancé
    E.1.1.2Therapeutic area Diseases [C] - Cancer [C04]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 20.0
    E.1.2Level LLT
    E.1.2Classification code 10072737
    E.1.2Term Advanced breast cancer
    E.1.2System Organ Class 100000004864
    E.1.3Condition being studied is a rare disease No
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    To demonstrate that elacestrant, compared with the Standard of Care (SoC options of either fulvestrant or an aromatase inhibitor (AI), is superior in prolonging progression-free survival (PFS) based on blinded central Imaging Review Committee (IRC) assessment in postmenopausal women and in men with advanced/metastatic estrogen receptor positive/ human epidermal growth factor receptor 2 negative (ER+/HER2-) breast cancer, either in subjects with tumors that harbor mutations in the ligand binding domain (LBD) of the estrogen receptor 1 (ESR1) gene (ESR1-mut subjects) or in all (ESR1-mut and ESR1 wild type [ESR1-WT]) subjects. Subjects must have received at least one and no more than two prior lines of endocrine therapy (with documented progression), which must have included prior CDK4/6 inhibitor therapy in combination with fulvestrant or an aromatase inhibitor (AI) and hormonal monotherapy must be an appropriate treatment option.
    Démontrer que l'élacestrant, par rapport aux options de la norme de soins (NdS) comprenant le fulvestrant ou un inhibiteur de l'aromatase (IA), est supérieur en termes de prolongation de la survie sans progression (SSP) sur la base d’une évaluation réalisée par le Comité central d’examen de l’imagerie (CEI) avec insu dans le traitement des femmes ménopausées et des hommes atteints d’un cancer du sein positif pour le récepteur de l'œstrogène et négatif pour le récepteur du facteur de croissance épidermique humain (ER+/HER2-) avancé/métastatique, chez des patients présentant des tumeurs portant des mutations dans le domaine de liaison du ligand (LBD) du gène codant le récepteur de l'œstrogène 1 (ESR1) (patients ESR1-mut) ou chez tous les patients (ESR1-mut et ESR1 de type sauvage [ESR1-WT]). Les patients doivent avoir reçu au moins un et au plus deux lignes de traitement endocrinien antérieures (avec progression documentée), (...) (pour la suite voir le synopsis du protocole page 2).
    E.2.2Secondary objectives of the trial
    ● To compare overall survival (OS) between treatment arms in ESR1-mut subjects,
    ● To compare OS between treatment arms in all (ESR1-mut and ESR1-WT) subjects,
    ● To compare PFS based on blinded IRC assessment,
    ● To compare objective response rate (ORR) based on blinded IRC assessment,
    ● To compare duration of response (DoR) based on blinded IRC assessment,
    ● To compare clinical benefit rate (CBR) based on blinded IRC assessment,
    ● To compare ORR based on local Investigator assessment,
    ● To compare DoR based on local Investigator assessment,
    ● To compare CBR based on local Investigator assessment,
    ● To compare the safety and tolerability between treatment arms
    ● To assess the pharmacokinetics (PK) of elacestrant
    ● To describe the changes of Patient Reported Outcomes (PROs) and Health-Related Quality of Life (HRQOL) within the study population and the differences in the changes of PROs/HRQOL between treatment arms
    •Comparer la SG entre les groupes de traitement chez les patients ESR1-mut
    •Comparer la SG entre les groupes de traitement chez tous les patients (ESR1-mut et ESR1-WT)
    •Comparer la SSP basée sur l’évaluation du CEI avec insu
    •Comparer le TRO basé sur le CEI avec insu
    •Comparer la durée de la réponse (DdR) basée sur le CEI avec insu
    •Comparer le taux d’effets cliniques bénéfiques (TECB) basé sur le CEI avec insu
    •Comparer le TRO basé sur l’évaluation de l’investigateur du centre
    •Comparer la DdR basée sur l’évaluation de l’investigateur du centre
    •Comparer le TECB basé sur l’évaluation de par l’investigateur du centre
    •Comparer l’innocuité et la tolérance entre les groupes de traitement
    •Évaluer la pharmacocinétique (PK) de l’élacestrant
    •Décrire les variations des résultats rapportés par le patient (PRO) et la qualité de vie liée à la santé (HRQOL) dans la population étudiée et les différences dans les variations des PRO et de l’HRQOL entre les groupes de traitement.
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    ● Subjects with histologically or cytologically proven diagnosis of adenocarcinoma of the breast with evidence of either locally advanced disease not amenable to resection or radiation therapy with curative intent or metastatic disease not amenable to curative therapy
    ● Subjects must be appropriate candidates for endocrine monotherapy
    ● Subjects must have one of the terms as defined by RECIST v1.1 and confirmed by central radiology review prior to randomization:
    a. Measurable disease
    b. Nonmeasurable (evaluable) bone-only disease. Evaluable bone-only disease must include at least one lytic bone lesion or a mixed lytic-blastic bone lesion; blasticonly metastases are not allowed. Subjects who have had prior radiation to bone must have at least one evaluable lesion in a non-irradiated area
    ● Female or male subjects age ≥ 18 years
    ● Female subjects must be postmenopausal, defined as:
    a. Documented bilateral surgical oophorectomy
    b. Age ≥ 60 years with amenorrhea ≥ 1 year since last menses
    c. Age < 60 years with amenorrhea ≥ 1 year since last menses with no alternative pathological or physiological cause (including chemotherapy, treatment with tamoxifen or toremifene, or a GnRH agonist), and serum estradiol and FSH level within the laboratory reference range for postmenopausal women
    d. Age < 60 years with tamoxifen or toremifene therapy within the last 12 months, with documentation of 12 months of amenorrhea prior to tamoxifen or toremifene therapy, and serum estradiol and FSH levels within the laboratory reference range for postmenopausal women
    ● Male subjects:
    a. Must have suppression of testicular hormone production through chemical ablation with an approved GnRH agonist, starting at least six weeks prior to study entry and continuing without interruption for the duration of protocol treatment (unless they have undergone prior orchiectomy). Note: GnRH agonists should be administered as per local standard of care and should be documented as concomitant medication
    b. Must, even if surgically sterilized (ie, status post-vasectomy):
    i. Agree to practice highly effective barrier contraception (use condoms) during the entire study treatment period and through 120 days after the last dose of study drug. For subjects (who have not undergone vasectomy) with female
    partners of childbearing potential, the subject and his partner must in addition to condoms, use highly effective contraceptive measures when engaging in sexual intercourse throughout the study, and for at least 120 days after the last dose of study drug (eg, oral contraceptive and condoms, intrauterine device (IUD) and condoms, diaphragm with spermicide and condoms, other forms of contraception must be approved by the medical monitor) OR Agree to practice true abstinence during the entire study treatment period and through 120 days after the last dose of study drug
    ii. Agree not to donate sperm during the course of this study or within 120 days after receiving their last dose of the study drugs
    ● Subjects must have ER-positive, HER2-negative tumor status confirmed per local laboratory testing on their most recent biopsy from a metastatic lesion (if metastatic disease), or recurrent disease lesion (if locally advanced), or for subjects with bone only disease, from the most recent results from a biopsy from any site
    ● Subjects must have previously received at least one and no more than two lines of endocrine therapy for advanced/metastatic breast cancer
    ● Subjects must have received prior treatment with a CDK4/6 inhibitor in combination with either fulvestrant or an AI
    ● Subjects may have received no more than one line of chemotherapy in the advanced/metastatic setting. Chemotherapy administered for less than one cycle will not be counted as a prior line of chemotherapy. For subjects who progress within 12 months of (neo)adjuvant chemotherapy, this will count as one prior line of therapy for
    advanced/metastatic disease
    ● Subjects must have ctDNA ESR1-mut or ESR1-WT status as determined by central testing before subject is randomized
    ● Except where prohibited by local regulations, subjects must agree to provide a tissue sample taken from a metastatic disease lesion (if metastatic) or recurrent disease lesion (if locally advanced). A fresh biopsy is requested; however, an archival sample taken from the most recent available surgical biopsy (from a metastatic disease lesion or recurrent disease lesion) is acceptable. For subjects with bone only disease, archival tissue from the most recent biopsy of any kind is acceptable
    ● Eastern Cooperative Oncology Group (ECOG) performance status 0 or 1
    ● Resolution of all toxic effects of prior therapies or surgical procedures to Grade ≤ 1 (except alopecia and peripheral neuropathy)
    ● Adequate organ function as defined below:
    a. Hematologic function
    b. Renal function
    c. Hepatic function
    d. Serum chemistry
    e. Coagulation
    ● Ability to understand the protocol and provide informed consent
    ●Patient dont le diagnostic histologique ou cytologique d'adénocarcinome du sein a été démontré, présentant des signes d'une maladie localement avancée ne pouvant faire l'objet d'une résection ou d'une radiothérapie à visée curative ou d'une maladie métastatique ne pouvant faire l'objet d'un traitement curatif.
    ●Les patients doivent être de bons candidats pour une monothérapie endocrinienne
    ●Les patients doivent présenter l'un des éléments suivants, défini par les critères RECIST v1.1 et confirmé par un examen radiologique central avant la randomisation :
    a.Une maladie mesurable
    b.Une maladie uniquement osseuse non mesurable (évaluable). Une maladie uniquement osseuse évaluable doit comprendre au moins une lésion osseuse lytique ou une lésion osseuse lytique-blastique mixte ; des métastases exclusivement blastiques ne sont pas autorisées. Les patients ayant préalablement été irradiés au niveau des os doivent présenter au moins une lésion évaluable dans une zone non irradiée
    ●Femme ou homme âgé(e) de ≥ 18 ans
    ●Les patientes doivent être des femmes ménopausées, définies par :
    a. Une ovariectomie bilatérale documentée
    b. Un âge ≥ 60 ans avec une aménorrhée ≥ 1 an depuis leurs dernières menstruations
    c. Un âge < 60 ans avec une aménorrhée ≥ 1 an depuis leurs dernières menstruations sans aucune autre cause pathologique ou physiologique (notamment une chimiothérapie, un traitement par tamoxifène ou torémifène, ou un agoniste de la GnRH), et un taux sérique d'œstradiol et de FSH dans les valeurs de référence du laboratoire pour les femmes ménopausées.
    d. Un âge < 60 ans sous traitement par tamoxifène ou torémifène au cours des 12 derniers mois, avec une aménorrhée de 12 mois documentée avant le traitement par tamoxifène ou torémifène, et des taux sériques d'œstradiol et de FSH dans les valeurs de référence du laboratoire pour les femmes ménopausées.
    ●Hommes :
    a. La production d'hormones testiculaires doit être inhibée par une ablation chimique avec un agoniste approuvé de la GnRH, débutée au moins six semaines avant le début de l'étude et poursuivie sans interruption pendant toute la durée du traitement du protocole (sauf si une orchidectomie a déjà été réalisée). Remarque : Les agonistes de la GnRH doivent être administrés selon la norme de soins du centre et doivent être documentés comme des médicaments concomitants.
    b. Doivent, même s’ils ont été stérilisés de manière chirurgicale (c.-à-d. statut post-vasectomie)
    i. Accepter d’utiliser une contraception de type barrière extrêmement efficace (utilisation de préservatifs) pendant toute la durée du traitement à l’étude et pendant les 120 jours suivant la dernière administration du médicament à l’étude. Pour les patients (qui n'ont pas subi de vasectomie) ayant des partenaires féminines en âge de procréer, le patient et sa partenaire doivent, en plus des préservatifs, utiliser une méthode de contraception extrêmement efficace lorsqu'ils ont un rapport sexuel tout au long de l'étude et pendant au moins 120 jours après la dernière administration du médicament à l'étude (par exemple, contraceptif oral et préservatifs, dispositif intra-utérin (DIU) et préservatifs, diaphragme avec spermicide et préservatifs, toute autre forme de contraception devant être approuvée par le moniteur médical)
    OU Accepter de pratiquer une véritable abstinence pendant toute la durée du traitement à l’étude et pendant les 120 jours suivant la dernière administration du médicament à l’étude
    ii. Accepter de ne pas faire de don de sperme au cours de cette étude ou dans les 120 jours suivant la dernière administration du médicament à l'étude
    ●Les patients doivent présenter un statut tumoral ER-positif, HER-négatif confirmé par des analyses de laboratoire réalisées au centre sur leur biopsie la plus récente d'une lésion métastatique (en cas de maladie métastatique) ou récidivante (en cas de maladie localement avancée), ou pour les patients présentant une maladie uniquement osseuse, confirmé par les résultats les plus récents d’une biopsie prélevée au niveau de n’importe quel site
    ●Les patients doivent avoir déjà reçu au moins une et au plus deux lignes de traitement endocrinien pour traiter un cancer du sein avancé/métastatique
    ●Les patients doivent avoir déjà reçu un traitement par un inhibiteur de CDK4/6 en association avec le fulvestrant ou un IA.
    ●Les patients peuvent ne pas avoir reçu plus d'une ligne de chimiothérapie à un stade avancé/métastatique. Une chimiothérapie administrée pendant moins d'un cycle ne sera pas considérée comme une ligne de chimiothérapie antérieure. Pour les patients dont la maladie progresse dans les 12 mois suivant une chimiothérapie (néo)adjuvante, cela peut être considéré comme une ligne de traitement antérieure pour traiter une maladie avancée/métastatique.
    ●Les patients doivent avoir un statut ESR1-mut ou ESR1-WT détecté dans l’ADNtc déterminé par une analyse centrale avant leur randomisation.
    (...) (Voir suite dans le synopsis du protocole)
    E.4Principal exclusion criteria
    ● Prior treatment with elacestrant, GDC-0810, GDC-0927, GDC-9545, LSZ102, AZD9496, bazedoxifene, or other investigational selective estrogen receptor degrader (SERD) or investigational ER antagonist
    ● Prior anticancer or investigational drug treatment
    ● Presence of symptomatic metastatic visceral disease, defined as extensive hepatic involvement, untreated or progressive central nervous system (CNS) metastases, or symptomatic pulmonary lymphangitic spread. Subjects with discrete pulmonary parenchymal metastases are eligible, provided their respiratory function is not significantly compromised as a result of disease in the opinion of the Investigator. Subjects with previously treated CNS metastases are eligible provided that that all known lesions were previously treated, they have completed radiotherapy at least 28 days prior to first dose of study drug, are clinically stable, and require no steroid medication. If anti-convulsant medication is required, subjects must be stable on a non-enzyme inducing anticonvulsant regimen
    ● Subjects with an intact uterus with a history of endometrial intraepithelial neoplasia (atypical endometrial hyperplasia or higher-grade lesion)
    ● Diagnosis of any other malignancy within five years before enrollment, except for adequately treated basal cell or squamous cell skin cancer, or carcinoma in situ of the cervix
    ● Any of the following within six months before enrollment: myocardial infarction, severe/unstable angina, ongoing cardiac dysrhythmias ≥ Grade 2, prolonged QTcF ≥ Grade 2, uncontrolled atrial fibrillation of any grade, coronary/peripheral artery bypass graft, heart failure > Class II as defined by the New York Heart Association (NYHA) guidelines (Appendix 5), or cerebrovascular accident including transient ischemic attack
    ● Subjects with abnormal coagulation profiles, or any history of coagulopathy within the past six months, including history of deep vein thrombosis (DVT) or pulmonary embolism. However, subjects with the following conditions will be allowed to participate: a.Subjects with adequately treated catheter-related venous thrombosis occurring more than one month prior to the first dose of study drug b.Subjects being treated with an anticoagulant, eg, warfarin or heparin, for a thrombotic event occurring more than six months before enrollment, or for an otherwise stable and allowed medical condition (eg, well controlled atrial fibrillation), provided dose and coagulation parameters (as defined by local standard of care) are stable for at least one month prior to the first dose of study drug, and provided that an AI would be an appropriate therapy for the subject
    ● Subjects with known difficulty in tolerating oral medications or conditions which would impair absorption of oral medications such as: uncontrolled nausea or vomiting, gastrointestinal obstruction/motility disorder, malabsorption syndrome, or prior gastric bypass
    ● Subjects unable or unwilling to avoid prescription medications, over the counter medications, dietary/herbal supplements, and/or foods (eg, pomelos, star fruit, Seville oranges, and their juices) that are strong inhibitors or inducers of CYP3A4 activity, or cholestyramine or other anion exchange resins. Participation will be allowed if the medication, supplements and/or foods are discontinued for at least five half-lives or 14 days (whichever is longer) prior to study entry and for the duration of the study
    ● Major surgery within 28 days before the first dose of study drug
    ● Radiation therapy within 14 days (28 days for brain lesions per Exclusion Criterion 3) before the first dose of study drug. Note: tumor lesions previously subjected to radiation therapy or other locoregional therapy will be considered measurable only if disease progression after completion of locoregional therapy is clearly documented
    ● Any concurrent severe, acute, or chronic medical or psychiatric condition or laboratory abnormality that may increase the risk associated with study participation or investigational product administration or may interfere with the interpretation of study results and, in the judgment of the Investigator, would make the subject inappropriate for entry into this study
    ● Known hypersensitivity reaction to drugs chemically related to elacestrant or their excipients
    ● Known hypersensitivity to fulvestrant, anastrozole, letrozole, or exemestane (or to any of their excipients), unless treatment with one of the other three of these four treatment options would be appropriate therapy
    ●Traitement antérieur par élacestrant, GDC-0810, GDC-0927, GDC-9545, LSZ102, AZD9496, bazédoxifène ou tout autre SERD expérimental ou antagoniste expérimental d'ER.
    ●Traitement médicamenteux contre le cancer ou expérimental antérieur
    ●Présence d'une maladie viscérale métastatique symptomatique, définie par une atteinte hépatique étendue, des métastases du SNC non traitées ou progressives ou une propagation lymphangitique pulmonaire symptomatique. Les patients présentant des métastases discrètes du parenchyme pulmonaire sont éligibles, à condition que leur fonction respiratoire ne soit pas compromise de manière significative en raison de la maladie, selon l'investigateur. Les patients présentant des métastases du SNC préalablement traitées sont éligibles à condition que toutes les lésions connues aient déjà été traitées, qu'ils aient terminé la radiothérapie au moins 28 jours avant la première administration du médicament à l'étude, qu'ils soient stables sur le plan clinique et qu'ils ne nécessitent pas de stéroïdes. Si un traitement anticonvulsivant est nécessaire, les patients doivent être stables sous un schéma anticonvulsivant n’induisant pas d’enzyme
    ●Patientes présentant un utérus intact et ayant des antécédents de néoplasie intraépithéliale de l'endomètre (hyperplasie atypique de l'endomètre ou lésion de grade plus élevé).
    ●Diagnostic de toute autre tumeur maligne dans les cinq ans précédant l'inclusion, sauf en cas de cancer de la peau basocellulaire ou squameux, ou de carcinome in situ du col de l'utérus.
    ●Dans les six mois précédant l'inclusion, l'un des symptômes suivants : infarctus du myocarde, angor sévère/instable, dysrythmies cardiaques persistantes de grade ≥ 2 selon la classification CTCAE v5.0 du NCI, intervalle QTcF prolongé de ≥ grade 2, fibrillation auriculaire non contrôlée de tout grade, pontage de l'artère coronaire/périphérique, insuffisance cardiaque de classe ≥ II telle que définie par les directives de la New York Heart Association (NYHA) (Annexe 5 du protocole), ou accident vasculaire cérébral, y compris un accident ischémique transitoire.
    ●Patients présentant des profils de coagulation anormaux ou des antécédents de coagulopathie au cours des six derniers mois, y compris des antécédents de thrombose veineuse profonde (TVP) ou d'embolie pulmonaire. Cependant, les patients présentant les conditions suivantes seront autorisés à participer :a. Patients ayant présenté une thrombose veineuse liée au cathéter traitée de manière adéquate plus d'un mois avant la première administration du médicament à l'étude, b. Patients traités par un anticoagulant, par exemple la warfarine ou l’héparine, pour un événement thrombotique survenu plus de 6 mois avant l’inclusion, ou pour une condition médicale autrement stable et autorisée (par exemple, une fibrillation auriculaire bien contrôlée), à condition que la dose et les paramètres de coagulation (tels que définis par la norme de soins locale) soient stables pendant au moins un mois avant la première administration du médicament à l’étude et à condition qu’un IA soit un traitement approprié pour le patient.
    ●Patients ayant des difficultés connues à tolérer des médicaments oraux ou des conditions susceptibles de gêner l'absorption de médicaments oraux, telles que : nausées ou vomissements incontrôlés, obstruction gastro-intestinale/troubles de la motilité gastro-intestinale, syndrome de malabsorption ou pontage gastrique antérieur.
    ● Patients ne pouvant ou ne voulant pas éviter de prendre certains médicaments sur ordonnance, médicaments en vente libre, suppléments diététiques/à base de plantes et/ou aliments (par exemple, les pomelos, les caramboles, les oranges de Séville et leurs jus) qui sont de puissants inhibiteurs ou inducteurs de l'activité du CYP3A4, ou de la cholestyramine ou d’autres résines échangeuses d'anions. La participation sera autorisée si la prise des médicaments, suppléments et/ou la consommation des aliments sont arrêtées pendant au moins 5 demi-vies ou 14 jours (selon la durée la plus longue) avant l'inclusion dans l'étude et pendant toute la durée de l'étude.
    ●Chirurgie lourde < 28 jours avant la première administration du médicament à l’étude.
    ●Radiothérapie dans les 14 jours (28 jours pour les lésions cérébrales selon le critère de non inclusion 3) avant la première administration du médicament à l’étude. Remarque : les lésions tumorales précédemment soumises à une radiothérapie ou à un autre traitement locorégional ne seront considérées comme mesurables que si la progression de la maladie après la fin du traitement locorégional est clairement documentée.
    (...) (Voir suite dans le synopsis du protocole)










    E.5 End points
    E.5.1Primary end point(s)
    ● IRC assessed PFS in ESR1-mut subjects
    ● IRC assessed PFS in all (ESR1-mut and ESR1-WT) subjects-,
    where IRC assessed PFS is defined as the length of time from randomization until the date of objective disease progression per RECIST v1.1 as assessed by the blinded IRC, or death from any cause.
    ●la SSP évaluée par le CEI chez les patients ESR1-mut
    ●la SSP évaluée par le CEI chez tous les patients (ESR1-mut et ESR1-WT)
    où la SSP évaluée par le CEI est définie comme le temps écoulé entre la randomisation et la date de la progression objective de la maladie selon les critères RECIST v1.1 ) évaluée par le CEI avec insu, ou le décès toutes causes confondues.
    E.5.1.1Timepoint(s) of evaluation of this end point
    The date of objective disease progression per RECIST v1.1 or the date of subject's death.
    la date de la progression objective de la maladie selon les critères RECIST v1.1 ou la date de décès du patient.
    E.5.2Secondary end point(s)
    ● OS in ESR1-mut subjects, where OS is defined as the length of time from randomization until the date of death from any cause
    ● OS in all (ESR1-mut and ESR1-WT) subjects
    ● La SG chez les patients ESR1-mut, où la SG est définie comme le temps écoulé entre la randomisation et la date du décès toutes causes confondues
    ● La SG chez tous les patients (ESR1-mut et ESR1-WT)
    E.5.2.1Timepoint(s) of evaluation of this end point
    The date of subject's death.
    La date de décès du patient.
    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 Yes
    E.6.7Pharmacodynamic Yes
    E.6.8Bioequivalence No
    E.6.9Dose response No
    E.6.10Pharmacogenetic Yes
    E.6.11Pharmacogenomic Yes
    E.6.12Pharmacoeconomic No
    E.6.13Others No
    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) Yes
    E.8.2.2Placebo No
    E.8.2.3Other No
    E.8.2.4Number of treatment arms in the trial2
    E.8.3 The trial involves single site in the Member State concerned No
    E.8.4 The trial involves multiple sites in the Member State concerned Yes
    E.8.4.1Number of sites anticipated in Member State concerned14
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA92
    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 No
    E.8.6.3If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned
    Argentina
    Australia
    Austria
    Belgium
    Canada
    Denmark
    France
    Germany
    Greece
    Hungary
    Ireland
    Israel
    Italy
    Korea, Republic of
    Portugal
    Spain
    United Kingdom
    United States
    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
    A survival analysis will be performed at the same time as the final PFS analysis and again when approximately 50% of subjects have died at which time the study will be complete.
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years3
    E.8.9.1In the Member State concerned months2
    E.8.9.1In the Member State concerned days4
    E.8.9.2In all countries concerned by the trial years4
    E.8.9.2In all countries concerned by the trial months2
    E.8.9.2In all countries concerned by the trial days0
    F. Population of Trial Subjects
    F.1 Age Range
    F.1.1Trial has subjects under 18 No
    F.1.1.1In Utero No
    F.1.1.2Preterm newborn infants (up to gestational age < 37 weeks) No
    F.1.1.3Newborns (0-27 days) No
    F.1.1.4Infants and toddlers (28 days-23 months) No
    F.1.1.5Children (2-11years) No
    F.1.1.6Adolescents (12-17 years) No
    F.1.2Adults (18-64 years) Yes
    F.1.2.1Number of subjects for this age range: 233
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 233
    F.2 Gender
    F.2.1Female Yes
    F.2.2Male Yes
    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 state30
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 304
    F.4.2.2In the whole clinical trial 466
    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)
    Subjects will enter a FU phase during which survival and new anti-cancer therapy information will be collected following the EOT visit for the duration of the study.For subjects who discontinue treatment for reasons other than disease progression,and who do not begin a new course of anti-cancer therapy,tumor assessments will continue per the SOE until disease progression;at that time,they will continue to be monitored for survival and new anti-cancer therapy information.
    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 Decision2019-05-03
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2019-07-17
    P. End of Trial
    P.End of Trial StatusOngoing
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