E.1 Medical condition or disease under investigation |
E.1.1 | Medical condition(s) being investigated |
Post-menopausal women with ER+ HER2- breast cancer. |
Mujeres postmenopáusicas con cáncer de mama ER+ y HER2-. |
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E.1.1.1 | Medical condition in easily understood language |
Breast cancer in post-menopausal women. |
Cáncer de mama en mujeres posmenopáusicas. |
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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 | 23.0 |
E.1.2 | Level | LLT |
E.1.2 | Classification code | 10070575 |
E.1.2 | Term | Estrogen receptor positive breast cancer |
E.1.2 | System Organ Class | 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) |
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E.1.2 Medical condition or disease under investigation |
E.1.2 | Version | 23.0 |
E.1.2 | Level | PT |
E.1.2 | Classification code | 10083232 |
E.1.2 | Term | HER2 negative 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 |
Evaluate the effects of ARV-471 and anastrozole, respectively, on Ki-67 expression in tumors after 2 weeks of treatment. |
Evaluar los efectos de ARV-471 y anastrozol, respectivamente, sobre la expresión de Ki-67 en los tumores después de 2 semanas de tratamiento. |
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E.2.2 | Secondary objectives of the trial |
1. Evaluate the safety and tolerability of ARV-471 and anastrozole, respectively. 2. Evaluate the clinical and pathological response of ARV-471 and anastrozole, respectively. |
1. Evaluar la seguridad y la tolerabilidad de ARV-471 y anastrozol, respectivamente. 2. Evaluar la respuesta clínica y anatomopatológica de ARV-471 y anastrozol, respectivamente. |
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E.2.3 | Trial contains a sub-study | No |
E.3 | Principal inclusion criteria |
1. Post-menopausal females > or = 18 years. 2. Histologically or cytologically confirmed ER+ and HER2- breast cancer (per local assessment). 3. Clinical T1c-T4c, N0-N2, M0 breast cancer amenable to definitive surgical resection, without bilateral breast ductal carcinoma in situ or invasive breast cancer. 4. The primary tumor must be at least 1.5 cm by imaging. 5. Willingness to undergo a screening biopsy, an on-treatment biopsy and surgical resection. 6. Capable of giving signed informed consent. 7. Eastern Cooperative Oncology Group (ECOG) performance status of 0 or 1. 8. Adequate bone marrow function. 9. Activated partial thromboplastin time (aPTT) < or = 1.25 × upper limit of normal (ULN) and international normalized ratio (INR) < or = 1.25. 10. Adequate renal function defined as serum creatinine of < or = 1.5 × ULN or an estimated creatinine clearance of > or = 50 mL/min by Cockcroft Gault. 11. Adequate liver function. 12. Participants who are willing and able to comply with all scheduled visits, treatment plan, laboratory tests, lifestyle considerations, and other study procedures. |
1. Mujeres posmenopáusicas > o = 18 años. 2. Cáncer de mama ER+ y HER2- confirmado histológica o citológicamente (según la evaluación local). 3. Cáncer de mama clínico T1c-T4c, N0-N2, M0 tributario de resección quirúrgica definitiva, sin presencia de carcinoma in situ ductal bilateral ni cáncer de mama invasivo. 4. El tumor primario debe medir como mínimo 1,5 cm en las pruebas de imagen. 5. Disposición para someterse a una biopsia de selección, una biopsia durante el tratamiento y a la resección quirúrgica. 6. Capaz de dar el consentimiento informado firmado. 7. Estado funcional ECOG de 0 o 1. 8. Función de la médula ósea adecuada. 9. TTPa < o = 1,25 × LSN e INR < o = 1,25. 10. Función renal adecuada, definida como una concentración de creatinina sérica < o = 1,5 × LSN o un aclaramiento de creatinina estimado > o = 60 ml/min usando la fórmula de Cockcroft-Gault. 11. Función hepática adecuada. 12. Participantes que estén dispuestos y sean capaces de cumplir con todas las visitas programadas, plan de tratamiento, pruebas de laboratorio, consideraciones de estilo de vida y otros procedimientos del estudio. |
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E.4 | Principal exclusion criteria |
1. Any other active malignancy within three years prior to enrollment, except for adequately treated basal cell or squamous cell skin cancer, or cervical carcinoma in situ. 2. Any of the following in the previous six months: - Myocardial infarction. - Severe / unstable angina. - Coronary / peripheral artery bypass graft. - Symptomatic congestive heart failure (New York Heart Association class III or IV). - Cerebrovascular accident. - Transient ischemic attack. - Symptomatic pulmonary embolism. 3. Any of the following in the previous six months: - Congenital long QT syndrome. - Torsade de Pointes. - Sustained ventricular tachyarrhythmia and ventricular fibrillation. - Left anterior hemiblock (bifascicular block). - Ongoing cardiac dysrhythmias of National Cancer Institute (NCI) Common Toxicity Criteria for Adverse Events (CTCAE) > or = Grade 2. - Atrial fibrillation of any grade (> or = Grade 2 in the case of asymptomatic lone atrial fibrillation). 4. Active inflammatory gastrointestinal disease, chronic diarrhea, known uncontrolled diverticular disease, or previous gastric resection or lap band surgery. 5. Cirrhosis meeting criteria for Child Pugh B and C. 6. Major surgery (as defined by the Investigator) within four weeks of first dose of study drug. 7. History of allergy or reaction to any of the drug components for ARV-471 or anastrozole. 8. Inability to take oral medication without crushing, dissolving, or chewing tablets. 9. Other medical or psychiatric condition including recent (within the past year) or active suicidal ideation/behavior or laboratory abnormality that may increase the risk of study participation or, in the investigator’s judgment, make the participant inappropriate for the study. 10. Prior treatment for breast cancer including systemic therapy (eg, chemotherapy, hormonal therapy), radiation, surgery, or any investigational agents. 11. Any live vaccines within 14 days of planned start of first dose of study drug. 12. Taking the following agents within 14 days of C1D1 unless otherwise specified: - Sensitive P-glycoprotein (P-gp) substrates or P-gp substrates with narrow therapeutic indices. - Strong CYP3A4 inhibitors or inducers. - Any medications with known QT risk, and/or are associated with a risk of Torsades de Pointes, within 7 days of C1D1. 13. Corrected QT interval by Fredericia’s method (QTcF) > 470 msec. 14. Participants with active, uncontrolled bacterial, fungal or viral infection, including (but not limited to) hepatitis B virus (HBV) and hepatitis C virus (HCV) and known human immunodeficiency virus (HIV) or acquired immunodeficiency syndrome (AIDS) related illness. 15. Participants who are involuntarily incarcerated. (Note: under certain specific circumstances a person who has been imprisoned may be included or permitted to continue as a participant. Strict conditions apply and Sponsor approval is required). 16. Participants who are compulsorily detained for treatment of either a psychiatric or physical (e.g., infectious disease) illness. 17. Investigator site staff or Sponsor employees directly involved in the conduct of the study, site staff otherwise supervised by the investigator, and their respective family members. |
1. Diagnóstico de cualquier otra neoplasia maligna dentro de los 3 años previos a la inclusión, a excepción del cáncer de piel de células basales o escamosas o el carcinoma in situ de cérvix. 2. Cualquiera de los siguientes dentro de los 6 meses previos: - Infarto de miocardio. - Angina inestable grave. - Bypass de las arterias coronarias/periférico. - Insuficiencia cardíaca congestiva sintomática (clase III o IV de la New York Heart Association). - Accidente vascular cerebral. - Accidente isquémico transitorio. - Embolismo pulmonar sintomático. 3. Cualquiera de los siguientes dentro de los 6 meses previos: - Síndrome de QT largo congénito. - Torsade de Pointes. - Taquiarritmia ventricular mantenida o fibrilación ventricular. - Hemibloqueo anterior izquierdo (bloqueo bifascicular). - Disritmias cardíacas en curso ≥ Grado 2 de los CTCAE del NCI. - Fibrilación auricular de cualquier grado (≥ Grado 2 en caso de una fibrilación auricular asintomática aislada). 4. Enfermedad inflamatoria intestinal activa, diarrea crónica, enfermedad diverticular conocida y no controlada, resección gástrica previa o cirugía bariátrica con colocación de banda gástrica. 5. Cirrosis que cumpla los criterios de Child Pugh B o C. 6. Cirugía mayor (definida según el criterio del investigador) realizada dentro de las 4 semanas previas a la primera administración del fármaco del estudio. 7. Antecedentes de alergia o reacción a cualquiera de los componentes de ARV-471 o anastrozol. 8. Incapacidad para ingerir medicación por vía oral a menos que los comprimidos se trituren, disuelvan o mastiquen. 9. Otras condiciones médicas o psiquiátricas incluyendo recientes (dentro del ultimo año) o idea/comportamiento suicida o anormalidades de laboratorio que ponga en riesgo la participación en el estudio o, a juicio del investigador que considere el participante inapropiado para participar. 10. Tratamiento previo para el cáncer de mama que incluya terapia sistémica (p.ej., quimioterapia, terapia hormonal), radioterapia, cirugía o cualquier fármaco en investigación. 11. Cualquier vacuna con microorganismos vivos administrada dentro de los 14 días previos al inicio previsto de la administración del fármaco en estudio. 12. Toma de los siguientes agentes dentro de los 14 días previos a C1D1, a menos que se especifique lo contrario: - Sustratos sensibles a P-gp o sustratos de P-gp con índice terapéutico estrecho. - Inhibidores o inductores potentes del CYP3A4. - Cualquier medicación con riesgo conocido de afectación del QT y/o que se asocie a riesgo de aparición de Torsades de Pointes, administrada dentro de los 7 días previos al C1D1. 13. Intervalo QT corregido por metodo Fredericia (QTcF)>470 msec. 14.Participantes con infección bacteriana, fúngica o viral activa y no controlada, incluyendo (pero no limitada a) el virus de la hepatitis B (VHB) y el virus de la hepatitis C (VHC) y el virus de inmunodeficiencia humana conocido (VIH) o las enfermedades asociadas al síndrome de inmunodeficiencia adquirida (SIDA). 15. Participantes en prisión (Nota: bajo ciertas circusntancias específicas una persona que ha estado encarcelada podria ser incluida o permitirse que continue como participante. Se requerirán la aprobacion del Promotor y las condiciones estrictas que apliquen). 16. Los participantes que son arrestados obligatoriamente para recibir un tratamiento de enfermedad psiquiatrica o fisica (ej. enfermedad infecciosa). 17. Personal del centro investigador o empleados del promotor directamente involucrados en el estudio, personal del centro supervisados por el investigador o sus respectivos miembros familiares. |
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E.5 End points |
E.5.1 | Primary end point(s) |
Percent change in Ki-67 expression between baseline and Cycle 1 Day 15 tumor biopsies. |
Porcentaje de cambio en la expresión de Ki-67 entre la situación basal y las biopsias tumorales del D15 del C1. |
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E.5.1.1 | Timepoint(s) of evaluation of this end point |
Cycle 1 Day 15, i.e. after two weeks of treatment. |
Día 15 del ciclo 1, es decir después de dos semanas de tratamiento. |
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E.5.2 | Secondary end point(s) |
1. Incidence of all adverse events, serious adverse events, and adverse events leading to study drug discontinuation. 2. Pathologic stage, pathologic complete response (pCR) rate, and modified Pre-operative Endocrine Prognostic Index (mPEPI) score at the time of surgical resection (C6D18 ± 10 days); rates of breast conserving surgery; radiographic response of the primary tumor based on imaging during cycle 6; caliper-based response on C6D1. |
1. Incidencia de todos los acontecimientos adversos, acontecimientos adversos graves y acontecimientos adversos que provocan la suspensión del fármaco en estudio. 2. Estadio patológico, tasa de respuesta completa patológica (RCp) y puntuación del Índice Pronóstico Endocrino Preoperatorio modificado (PEPIm) en el momento de la resección quirúrgica (D18 del C6 ± 10 días); tasas de cirugía conservadora de la mama; respuesta radiológica del tumor primario basándose en las pruebas de imagen realizadas durante el ciclo 6; respuesta basada en las mediciones con calibrador del D1 del C6. |
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E.5.2.1 | Timepoint(s) of evaluation of this end point |
1. During entire duration of the trial. 2. At end of trial participation. |
1. Durante toda la duración del ensayo. 2. Al final de la participación en el ensayo. |
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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 | Yes |
E.6.4 | Safety | Yes |
E.6.5 | Efficacy | No |
E.6.6 | Pharmacokinetic | No |
E.6.7 | Pharmacodynamic | No |
E.6.8 | Bioequivalence | No |
E.6.9 | Dose response | No |
E.6.10 | Pharmacogenetic | No |
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 | No |
E.8.1.6 | Cross over | No |
E.8.1.7 | Other | Yes |
E.8.1.7.1 | Other trial design description |
No están previstas comparaciones formales entre ARV-471 y anastrozol o pruebas de hipótesis |
No formal comparisons between ARV-471 and anastrozole or hypotheses testing are planned |
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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 | 2 |
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 | 20 |
E.8.5 | The trial involves multiple Member States | Yes |
E.8.5.1 | Number of sites anticipated in the EEA | 35 |
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 |
United States |
Spain |
Germany |
Georgia |
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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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End of study is defined as the last participant’s last study visit or follow-up phone call. |
El final del estudio se define como la última visita de estudio o llamada telefónica de seguimiento del último participante. |
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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 | 1 |
E.8.9.1 | In the Member State concerned months | 6 |
E.8.9.1 | In the Member State concerned days | |
E.8.9.2 | In all countries concerned by the trial years | 1 |
E.8.9.2 | In all countries concerned by the trial months | 6 |