E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
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E.1.1.1 | Medical condition in easily understood language |
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E.1.1.2 | Therapeutic area | Diseases [C] - Cancer [C04] |
MedDRA Classification |
E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 20.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10006187 |
E.1.2 | Term | Breast cancer |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.3 | Condition being studied is a rare disease | No |
E.2 Objective of the trial |
E.2.1 | Main objective of the trial |
To determine whether SAR439859 given at 2 different doses improves the antiproliferative activity when compared to letrozole |
Determinar si SAR439859 administrado en 2 dosis diferentes mejora la actividad antiproliferativa en comparación con letrozol. |
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E.2.2 | Secondary objectives of the trial |
-To assess the proportion of participants with a relative decrease from baseline in percentage of positive tumor cells tested by immunohistochemistry ≥50% (Ki67≥50%) in the three treatment arms -To assess estrogen receptor (ER) degradation in biopsies in participants in the three treatment arms -To assess safety in the three treatment arms |
-Evaluar la proporción de participantes con una disminución relativa desde el inicio en porcentaje de células tumorales positivas probadas por inmunohistoquímica superior o igual al 50% (Ki67 superior o igual al 50%) en los tres brazos de tratamiento -Evaluar la degradación del receptor de estrógeno (RE) en biopsias en participantes en los tres brazos de tratamiento -Evaluar la seguridad en los tres brazos de tratamiento. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
-Histological or cytological proven diagnosis of invasive breast adenocarcinoma -Localized breast cancer eligible for immediate breast conservative surgery: Stage II or operable Stage III (excludes T4) as defined in American Joint Committee on Cancer (AJCC) Cancer Staging Manual 8th edition 2017 -Postmenopausal women as defined by one of the following: -Age ≥60 years -Age <60 years with: spontaneous cessation of menses >12 months; or with cessation of menses of duration ≤12 months or secondary to hysterectomy and have follicle stimulating hormone (FSH) level in the postmenopausal range; or who have received hormonal replacement therapy but have discontinued this treatment and have FSH level in the postmenopausal range; or with status post bilateral surgical oophorectomy; or postbilateral ovarian ablation through pelvic radiotherapy; or are premenopausal women on a gonadotropin-releasing hormone (GnRH) analog for at least 4 weeks (to be continued during study treatment) -Breast tumor size of at least 10 mm in short axis measured by ultrasound -Primary tumor must be positive for Estrogen Receptors (ER+) and negative for HER2 (HER2-) receptor by immunohistochemistry -Ki67 level of at least 15% at diagnosis from immunohistochemistry of the tumor -Eastern Cooperative Oncology Group (ECOG) performance status 0-1 |
-Diagnóstico histológico o citológico comprobado de adenocarcinoma de mama invasivo -Cáncer de mama localizado elegible para cirugía conservadora de mama inmediata: Etapa II u Etapa III operable (excluye T4) como se define en el American Joint Committee on Cancer (AJCC) Cancer Staging Manual 8th edition 2017 -Mujeres posmenopáusicas según lo definido por uno de los siguientes: -Edad superior o igual a 60 años -Edad inferior a 60 años con: cese espontáneo de la menstruación de más de 12 meses; o con el cese de la menstruación de duración inferior o igual a 12 meses o secundaria a la histerectomía y tener un nivel de hormona folículo estimulante (FSH) en el rango posmenopáusico; o que han recibido terapia de reemplazo hormonal pero han descontinuado este tratamiento y tienen un nivel de FSH en el rango posmenopáusico; o con estado post ooforectomía quirúrgica bilateral; o ablación ovárica posbilateral mediante radioterapia pélvica; o son mujeres premenopáusicas en un análogo de la hormona liberadora de gonadotropina (GnRH) durante al menos 4 semanas (se continuará durante el tratamiento del estudio) - Tamaño del tumor de mama de al menos 10 mm en eje corto medido por ultrasonido -El tumor primario debe ser positivo para los receptores de estrógeno (RE +) y negativo para el receptor HER2 (HER2-) por inmunohistoquímica - Nivel de Ki67 de al menos 15% en el momento del diagnóstico por inmunohistoquímica del tumor -Estado 0-1 en la Eastern Cooperative Oncology Group (ECOG) |
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E.4 | Principal exclusion criteria |
Medical history or ongoing gastrointestinal disorders potentially affecting the absorption of SAR439859 or letrozole; Participants unable to swallow normally and to take capsules or tablets -Participant with any other cancer; adequately treated basal cell or squamous cell skin cancer or in situ cervical cancer or any other cancer from which the participant has been disease free for >3 years are allowed -Evidence of metastatic spread by standard assessment according to local practice -Treatment with strong or moderate Cytochrome P450 3A (CYP3A) or CYP2C8 inducers within 2 weeks before first study treatment administration or 5 elimination half-lives whichever is longest -Ongoing treatment with drugs that are sensitive substrates of P-glycoprotein (P-gp) -Use of any investigational agent within 4 weeks prior to randomization -Currently receiving (and unwilling to discontinue) hormone replacement therapy (last dose <14 days prior to randomization) -Prior anti-cancer treatment is not allowed unless it was completed at least 1 year prior to inclusion into this trial -Previous systemic or local treatment for the new primary breast cancer currently under investigation (including surgery, radiotherapy, cytotoxic and endocrine treatments) -Inadequate hematological or renal function -Prothrombin time/international normalized ratio (INR) >1.5 x ULN) or outside therapeutic range if receiving anticoagulation that would affect the prothrombin time/INR -Any of the following abnormal liver function test results: Aspartate aminotransferase >1.5 x upper limit of normal (ULN); Alanine aminotransferase >1.5 x ULN; Total bilirubin >1.5 x ULN -Participants are employees of the clinical study site or other individuals directly involved in the conduct of the study, or immediate family members of such individuals -Sensitivity to any of the study interventions, or components thereof, or drug or other allergy that, in the opinion of the Investigator, contraindicates participation in the study |
Historial médico o trastornos gastrointestinales en curso que puedan afectar la absorción de SAR439859 o letrozol; participantes no pueden tragar normalmente y tomar cápsulas o comprimidos. -Participante con cualquier otro cáncer; se permite el tratamiento adecuado del cáncer de piel de células basales o de células escamosas o cáncer cervical in situ o cualquier otro cáncer del que el participante haya estado libre de enfermedad durante más de 3 años -Evidencia de diseminación metastásica por evaluación estándar de acuerdo con la práctica local. -Tratamiento con inductores de citocromo P450 3A (CYP3A) o CYP2C8 fuertes o moderados dentro de las 2 semanas antes de la administración del primer tratamiento de estudio o 5 vidas medias de eliminación, lo que sea más largo -Tratamiento continuo con medicamentos que son sustratos sensibles de la glicoproteína P (P-gp) -Uso de cualquier agente de investigación dentro de las 4 semanas previas a la aleatorización -Actualmente recibiendo (y no dispuesto a suspender) la terapia de reemplazo hormonal (última dosis inferior a14 días antes de la aleatorización) -El tratamiento anticancerígeno previo no está permitido a menos que se haya completado al menos 1 año antes de su inclusión en este ensayo -Tratamiento sistémico o local previo para el nuevo cáncer de mama primario actualmente bajo investigación (incluyendo cirugía, radioterapia, tratamientos citotóxicos y endocrinos) - Función hematológica o renal inadecuada. -Tiempo de protrombina / relación normalizada internacional (INR)> 1.5 x ULN) o fuera del rango terapéutico si recibe anticoagulación que afectaría el tiempo de protrombina / INR -Cualquier de los siguientes resultados anormales de las pruebas de función hepática: aspartato aminotransferasa> 1.5 x límite superior de la normalidad (ULN); Alanina aminotransferasa> 1.5 x ULN; Bilirrubina total> 1.5 x ULN - Participantes que sean empleados del centro del estudio clínico u otras personas directamente involucradas en la realización del estudio, o miembros de la familia inmediata de dichas personas. -Sensibilidad a cualquiera de las intervenciones del estudio, o sus componentes, o al medicamento u otra alergia que, en opinión del investigador, contraindica la participación en el estudio. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Ki67: Change in Ki67 (percentage of positive tumor cells tested by immunohistochemistry) after a 14-day treatment period compared to baseline assessed by central reading |
El cambio en Ki67 (porcentaje de células tumorales positivas analizadas por inmunohistoquímica [IHQ]) después de un período de tratamiento de 14 días en comparación con los valores iniciales evaluados mediante una lectura central. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Baseline and Day 15 |
Basal y día 15 |
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E.5.2 | Secondary end point(s) |
1. Ki67≥50%: Proportion of participants with relative change from baseline in Ki67≥50% after a 14-day treatment period compared to baseline 2. ER Expression: Change in ER expression after a 14-day treatment period compared to baseline 3. Adverse Events (AEs)/Serious Adverse Events (SAEs): Percentage of participants with AEs/SAEs 4. Clinical Laboratory Test Abnormalities: Percentage of participants with clinical laboratory test abnormalities |
1. Ki67≥50%: Proporción de participantes con una disminución relativa desde el inicio en el marcador de proliferación Ki67 después de un período de 14 días de tratamiento en comparación con el valor inicial. 2. Expresion RE: Cambio en la expresión del RE después de un período de tratamiento de 14 días en comparación con el valor inicial. 3. Evaluar la seguridad en los tres grupos de tratamiento Acontecimiento Adversos (AA)/Acontecimientos Adversos Graves (AAG): Porcentaje de participantes con AA/AAG 4. Anormalidades de laboratorio: Porcentaje de participantes con anormalidades de laboratorio. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1. Baseline and Day 15 2. Baseline and Day 15 3. Up to approximately Day 44 4. Up to Day 14 |
1. Basal y día 15 2. Basal y día 15 3. Hasta aproximadamente el día 44 4. Hasta el día 14 |
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E.6 and E.7 Scope of the trial |
E.6 | Scope of the trial |
E.6.1 | Diagnosis | No |
E.6.2 | Prophylaxis | No |
E.6.3 | Therapy | No |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | Yes |
E.6.6 | Pharmacokinetic | Yes |
E.6.7 | Pharmacodynamic | Yes |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | Yes |
E.6.11 | Pharmacogenomic | No |
E.6.12 | Pharmacoeconomic | No |
E.6.13 | Others | No |
E.7 | Trial type and phase |
E.7.1 | Human pharmacology (Phase I) | No |
E.7.1.1 | First administration to humans | No |
E.7.1.2 | Bioequivalence study | No |
E.7.1.3 | Other | No |
E.7.1.3.1 | Other trial type description | |
E.7.2 | Therapeutic exploratory (Phase II) | Yes |
E.7.3 | Therapeutic confirmatory (Phase III) | No |
E.7.4 | Therapeutic use (Phase IV) | No |
E.8 Design of the trial |
E.8.1 | Controlled | Yes |
E.8.1.1 | Randomised | Yes |
E.8.1.2 | Open | Yes |
E.8.1.3 | Single blind | No |
E.8.1.4 | Double blind | No |
E.8.1.5 | Parallel group | Yes |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | No |
E.8.2 | Comparator of controlled trial |
E.8.2.1 | Other medicinal product(s) | Yes |
E.8.2.2 | Placebo | No |
E.8.2.3 | Other | No |
E.8.2.4 | Number of treatment arms in the trial | 3 |
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.8.4.1 | Number of sites anticipated in Member State concerned | 3 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 14 |
E.8.6 Trial involving sites outside the EEA |
E.8.6.1 | Trial being conducted both within and outside the EEA | Yes |
E.8.6.2 | Trial being conducted completely outside of the EEA | No |
E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned |
Belgium |
France |
Italy |
Russian Federation |
Spain |
United States |
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E.8.7 | Trial has a data monitoring committee | No |
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
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LVLS |
Última visita del último paciente |
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E.8.9 Initial estimate of the duration of the trial |
E.8.9.1 | In the Member State concerned years | 0 |
E.8.9.1 | In the Member State concerned months | 11 |
E.8.9.1 | In the Member State concerned days | 0 |
E.8.9.2 | In all countries concerned by the trial years | 0 |
E.8.9.2 | In all countries concerned by the trial months | 11 |
E.8.9.2 | In all countries concerned by the trial days | 0 |