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    Summary
    EudraCT Number:2011-003044-53
    Sponsor's Protocol Code Number:B1271003
    National Competent Authority:Spain - AEMPS
    Clinical Trial Type:EEA CTA
    Trial Status:Completed
    Date on which this record was first entered in the EudraCT database:2012-03-16
    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 ConcernedSpain - AEMPS
    A.2EudraCT number2011-003044-53
    A.3Full title of the trial
    AN OPEN-LABEL, RANDOMISED PHASE 1B/2 STUDY OF PF-04691502 IN COMBINATION WITH LETROZOLE COMPARED WITH LETROZOLE ALONE IN PATIENTS WITH ESTROGEN RECEPTOR POSITIVE, HER-2 NEGATIVE EARLY BREAST CANCER
    ESTUDIO EN FASE 1B/2, ABIERTO Y ALEATORIZADO DE PF-04691502 EN COMBINACIÓN CON LETROZOL COMPARADO CON LETROZOL EN MONOTERAPIA EN PACIENTES CON CÁNCER DE MAMA INICIAL POSITIVO AL RECEPTOR ESTROGÉNICO, NEGATIVO AL HER2
    A.3.1Title of the trial for lay people, in easily understood, i.e. non-technical, language
    AN OPEN-LABEL, RANDOMISED PHASE 1B/2 STUDY OF PF-04691502 IN COMBINATION WITH LETROZOLE COMPARED WITH LETROZOLE ALONE IN PATIENTS WITH ESTROGEN RECEPTOR POSITIVE, HER-2 NEGATIVE EARLY BREAST CANCER
    ESTUDIO EN FASE 1B/2, ABIERTO Y ALEATORIZADO DE PF-04691502 EN COMBINACIÓN CON LETROZOL COMPARADO CON LETROZOL EN MONOTERAPIA EN PACIENTES CON CÁNCER DE MAMA INICIAL POSITIVO AL RECEPTOR ESTROGÉNICO, NEGATIVO AL HER2
    A.3.2Name or abbreviated title of the trial where available
    PF-4691502 PHASE 2 ER+ EARLY BREAST CANCER COMBINATION WITH LETROZOLE
    PF-4691502 PHASE 2 ER+ CÁNCER DE MAMA INICIAL EN COMBINACIÓN CON LETROZOL
    A.4.1Sponsor's protocol code numberB1271003
    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 SponsorPfizer, S.L.U.
    B.1.3.4CountrySpain
    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 supportPfizer Inc.
    B.4.2CountryUnited States
    B.5 Contact point designated by the sponsor for further information on the trial
    B.5.1Name of organisationPfizer Inc.
    B.5.2Functional name of contact pointClinical Trials.gov Call Center
    B.5.3 Address:
    B.5.3.1Street Address235 East 42nd Street
    B.5.3.2Town/ cityNew York
    B.5.3.3Post codeNY 10017
    B.5.3.4CountryUnited States
    B.5.4Telephone number0018007181021
    B.5.5Fax number0013037391119
    B.5.6E-mailClinicalTrials.govCallCenter@pfizer.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.3.2Product code PF-04691502
    D.3.4Pharmaceutical form 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 INNPF-04691502
    D.3.9.2Current sponsor codePF-04691502
    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: 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.3.2Product code PF-04691502
    D.3.4Pharmaceutical form 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 INNPF-04691502
    D.3.9.2Current sponsor codePF-04691502
    D.3.10 Strength
    D.3.10.1Concentration unit mg milligram(s)
    D.3.10.2Concentration typeequal
    D.3.10.3Concentration number5
    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 Femara
    D.2.1.1.2Name of the Marketing Authorisation holderNovartis Farmacéutica, S.A.
    D.2.1.2Country which granted the Marketing AuthorisationSpain
    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.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
    ESTROGEN RECEPTOR POSITIVE, HER-2 NEGATIVE EARLY BREAST CANCER WITH KI-67 HIGHER THAN 10%
    CÁNCER DE MAMA INICIAL POSITIVO AL RECEPTOR ESTROGÉNICO, NEGATIVO AL HER2 CON KI-67 SUPERIOR AL 10%
    E.1.1.1Medical condition in easily understood language
    early Breast cancer
    CÁNCER DE MAMA INICIAL
    E.1.1.2Therapeutic area Diseases [C] - Cancer [C04]
    MedDRA Classification
    E.1.2 Medical condition or disease under investigation
    E.1.2Version 14.1
    E.1.2Level LLT
    E.1.2Classification code 10070575
    E.1.2Term Estrogen receptor positive breast cancer
    E.1.2System Organ Class 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)
    E.1.3Condition being studied is a rare disease No
    E.2 Objective of the trial
    E.2.1Main objective of the trial
    Phase 1B: To assess the tolerability of PF-04691502 combined with letrozole in postmenopausal patients with ER positive, HER 2 negative advanced breast cancer.
    Phase 2: To compare the change in Ki-67 value from baseline to Week 6 in matched tumor biopsies from patients with ER positive, HER-2 negative early breast cancer treated with PF-04691502 in combination with letrozole or letrozole alone.
    Fase 1B (porción de preinclusión): Evaluar la tolerabilidad de PF-04691502 combinado con letrozol en pacientes posmenopáusicas con cáncer de mama avanzado RE positivo, HER-2 negativo.
    Fase 2: Comparar el cambio desde basal hasta la Semana 6 en el valor de Ki-67, en biopsias tumorales pareadas de pacientes con cáncer de mama inicial RE positivo, HER-2 negativo tratadas con PF-04691502 en combinación con letrozol o letrozol solo.
    E.2.2Secondary objectives of the trial
    Phase 1B: - evaluate the safety profile of PF-04691502 in combination with letrozole.
    - evaluate the pharmacokinetics (PK) of PF-0461502 and letrozole when administered alone and in combination.
    - characterize the effects, if any, of PF-0461502 combined with letrozole on QTc interval.
    - explore preliminary anti-tumor activity of PF-04691502 combined with letrozole
    Phase 2: - To evaluate the overall safety profile of the 2 regimens.
    - explore tumor response in patients treated with the 2 regimens.
    - evaluate the PK of PF-0461502 when given alone and in combination with letrozole.
    - explore the pharmacodynamic effect of the 2 regimens in tumor tissue at the 2 week time point and at the 6 week time point as compared to baseline.
    - evaluate genetic alterations and/or protein changes at baseline and after treatment with the 2 regimens, with a focus on the PI3K pathway, to explore novel patient selection biomarkers in ER positive, HER-2 negative early breast cancers.
    Fase 1B:- Evaluar el perfil de seguridad de PF-04691502 en combinación con letrozol.?Evaluar la Farmacocinética (FC) de PF-0461502 y letrozol al administrarlos solos y en combinación. -Describir los efectos, si existe alguno, de PF-0461502 combinado con letrozol sobre el intervalo QTc.
    - Explorar la actividad antitumoral preliminar de PF-04691502 combinado con letrozol.
    Fase 2: -Evaluar el perfil de seguridad general de las 2 pautas. -Explorar la respuesta tumoral en pacientes tratados con las 2 pautas. -Evaluar la FC de PF-0461502 administrado solo y en combinación con letrozol. -Explorar el efecto farmacodinámico de las 2 pautas en tejido tumoral en las fechas de valoración de la semana 2 y la semana 6 comparadas con basal. -Evaluar las alteraciones genéticas y/o cambios en las proteínas
    E.2.3Trial contains a sub-study No
    E.3Principal inclusion criteria
    1. For patients enrolled in the Phase 1B - Lead-in portion:
    - Postmenopausal female patients with histologically or cytologically proven diagnosis of breast cancer with evidence of metastatic disease or locally advanced disease, not amenable to resection or radiation therapy with curative intent.
    - ER positive and HER-2 negative breast cancer (ie, immunohistochemistry (IHC) 0 or 1+; if IHC 2+, FISH or CISH negative).
    - Measurable or non measurable disease as per Response Evaluation Criteria in Solid Tumors (RECIST).
    - Patients must be candidates to receive letrozole as standard of care.
    2. For patients enrolled in the Phase 2:
    - Postmenopausal women with newly diagnosed primary breast cancer or locally recurrent breast cancer for whom a neo-adjuvant therapy is prescribed.
    - ER positive and HER-2 negative breast cancer (ie, IHC 0 or 1+; if IHC 2+, FISH or CISH negative).
    - Tumor size >/=2 cm (as measured by ultrasound or MRI).
    - Ki-67 levels >10% positive cells determined by IHC at a central laboratory designated by the Sponsor.
    - Sufficient tumor tissue from baseline core biopsies to enable testing of biomarkers
    For patients enrolled in Phase 1b and Phase 2:
    3. ECOG Performance Status 0, or 1.
    4. Adequate glucose control, including no previous diagnosis of diabetes mellitus and HbA1c <7%.
    5. Adequate organ function as defined by the following criteria:
    - Absolute Neutrophil Count (ANC) >/=1,500/mm3 or >/=1.5 x 109/L.
    - Platelets >/=100,000/mm3 or >/=100 x 109/L.
    - Hemoglobin >/=9 g/dL.
    - Serum Aspartate Transaminase (AST) and serum Alanine Aminotransferase Transaminase (ALT) </=2.5 x upper limit of normal (ULN).
    - Alkaline phosphatase </=2.5 x ULN.
    - Total serum bilirubin </=1 x ULN.
    - Serum creatinine </=1.5 x ULN or estimated creatinine clearance >/=60 mL/min as calculated using the method standard for the institution.
    6. Adequate cardiac function, including:
    - 12 Lead electrocardiogram (ECG) with normal tracing or non clinically significant changes that do not require medical intervention.
    - QTc interval </=470 msec (mean of replicate values, correction per institutional standard) and no history of Torsades des Pointes or other symptomatic QTc abnormality.
    7. Resolution of all acute toxic effects of prior therapy or surgical procedures to grade </=1.
    8. At least 2 weeks since any prior hormone replacement therapy or phyto oestrogens herbal alternatives, or OTC sex hormone remedies.
    9. Evidence of a personally signed and dated informed consent form document indicating that the patient (or legally acceptable representative) has been informed of all the pertinent aspects of the trial prior to enrollment.
    10. Patients who are willing and able to comply with scheduled visits, treatment plan, laboratory tests, and other trial procedures.
    1.Para pacientes incluidas en la Fase 1B - Porción de preinclusión:
    - Pacientes mujeres posmenopáusicas con diagnóstico histológico o citológico probado de cáncer de mama con constatación de enfermedad metastática o enfermedad avanzada a nivel local, no susceptible para resección o radioterapia con intención curativa.
    - Cáncer de mama RE positivo y HER-2 negativo (es decir, inmunohistoquímica (IHC) 0 o 1+; si IHC 2+, FISH o CISH negativo)
    - Enfermedad mensurable o no mensurable según los Criterios de evaluación de la respuesta en tumores sólidos (RECIST).
    - Las pacientes deben ser candidatas a recibir tratamiento estándar con letrozol.
    2.Para pacientes incluidas en la Fase 2:
    - Mujeres posmenopáusicas con cáncer de mama primario de diagnóstico reciente o cáncer de mama recurrente localmente a las que se les haya prescrito tratamiento neo-adyuvante.
    - Cáncer de mama RE positivo y HER-2 negativo (es decir, IHC 0 o 1+; si IHC 2+, FISH o CISH negativo).
    - Tamaño tumoral >/=2 cm (determinado mediante ecografía o RM).
    - Niveles de Ki-67 >10% de células positivas, determinado mediante IHC en un laboratorio central designado por el promotor.
    - Tejido tumoral de las biopsias por punción con aguja gruesa basales suficiente para permitir estudiar los biomarcadores como se describe en el apartado 7.4 del protocolo.
    3.Estado funcional ECOG 0 o 1.
    4.Control glucémico adecuado, con ausencia de diagnóstico previo de diabetes mellitus y HbA1c <7%.
    5.Función orgánica adecuada definida por los siguientes criterios:
    - Recuento absoluto de neutrófilos (RAN) >/=1.500/mm3 o ?1,5 x 109/L
    - Plaquetas >/=100.000/mm3 o >/=100 x 109/L
    - Hemoglobina >/=9 g/dl
    - Aspartato transaminasa AST) y alanina aminotransferasa transaminasa (ALT) séricas (</=2,5 x límite superior de la normalidad (LSN)
    - Fosfatasa alcalina </=2,5 x LSN
    - Bilirrubina total sérica </=1 x LSN
    - Creatinina sérica </=1,5 x LSN o aclaramiento de creatinina estimado >/=60 ml/min. calculado usando el método estándar del centro
    6.Función cardiaca adecuada, incluidos:
    - Electrocardiograma (ECG) de 12 derivaciones con un trazado normal o sin cambios clínicamente significativos que no requieran intervención médica.
    - Intervalo QTc </=470 mseg. (media de los valores replicados, corrección según el estándar del centro) y sin antecedentes de Torsades des Pointes u otras alteraciones sintomáticas del QTc.
    7.Resolución de todos los efectos tóxicos agudos de la terapia anterior o los procedimientos quirúrgicos hasta un grado </=1.
    8.Haber transcurrido al menos 2 semanas desde cualquier terapia hormonal sustitutiva previa o las alternativas de fitoestrógenos o remedios de hormonas sexuales que no requieran prescripción.
    9.Constancia de consentimiento informado firmado personalmente que indique que la paciente (o el representante legal) ha sido informada de todos los aspectos pertinentes del estudio antes de la inclusión.
    10.Disposición y capacidad de cumplir las visitas programadas, los planes de tratamiento, las pruebas analíticas y otros procedimientos del ensayo.
    E.4Principal exclusion criteria
    1. Patients who are investigational site staff members or patients who are Pfizer employees directly involved in the conduct of the trial.
    2. Clinical presentation of inflammatory carcinoma.
    3. (For patients enrolled in the Phase 2) Patients unwilling to undergo core biopsies after 2 and 6 weeks of treatment.
    4. (For patients enrolled in the Phase 1B - Lead-in portion) Presence of active brain metastases, presence of spinal cord compression, or carcinomatous meningitis, or leptomeningeal disease. Patients with previously diagnosed brain metastases are eligible if they have completed their CNS treatment and have recovered from the acute effects of radiation therapy or surgery prior to the start of study medication, have discontinued corticosteroid treatment for these metastases for at least 4 weeks and are neurologically stable.
    5. Prior therapy with an agent that is known or proposed to be active by action on PI3K and/or mTOR.
    6. Known hypersensitivity to letrozole or to any of the excipients.
    7. Any surgery (not including minor procedures such as lymph node biopsy, primary tumor core biopsy, fine needle aspiration) within 4 weeks of start of study treatment; or not fully recovered from any side effects of previous procedures.
    8. Diagnosis of any second malignancy within the last 5 years, except for adequately treated basal cell carcinoma, or squamous cell skin carcinoma, or in situ cervical carcinoma.
    9. Current use or anticipated need for food or drugs that are known potent CYP3A4 inhibitors.
    10. Current or anticipated need for food or drugs that are known potent CYP3A4 inducers.
    11. Concurrent administration of herbal preparations.
    12. Any clinically significant gastrointestinal abnormalities, which may impair intake, transit or absorption of the study drugs, such as the inability to take oral medication in tablet form and malabsorption syndrome.
    13. Any mental disorder that would limit the understanding or rendering of informed consent and/or compromise compliance with the requirements of this protocol.
    14. Other 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 judgement of the investigator would make the patient inappropriate for entry into this study.
    15. Participation in other studies within 4 weeks before the current study begins and/or during study participation.
    1.Paciente miembro del equipo del centro de investigación o empleada de Pfizer directamente involucrado en la realización del estudio.
    2.Presentación clínica de carcinoma inflamatorio.
    3.(Para pacientes incluidas en la Fase 2) Pacientes que no deseen someterse a biopsias por punción con aguja gruesa tras 2 y 6 semanas de tratamiento.
    4.(Para pacientes incluidas en la Fase 1B - Porción de preinclusión) Presencia de metástasis cerebrales activas, presencia de compresión medular, meningitis carcinomatosa o enfermedad leptomeníngea. Las pacientes con diagnóstico previo de metástasis cerebrales serán elegibles si han finalizado el tratamiento del SNC y se han recuperado de los efectos agudos de la radioterapia o la cirugía antes de iniciar la medicación de estudio, has suspendido el tratamiento con corticosteroides para estas metástasis durante un mínimo de 4 semanas y se encuentran estables neurológicamente.
    5.Terapia previa con un fármaco conocido o propuesto como activo sobre el PI3K y/o mTOR.
    6.Hipersensibilidad conocida letrozol o alguno de sus excipientes.
    7.Intervención quirúrgica (no se incluyen los procedimientos menores como la biopsia de un ganglio linfático, biopsia del tumor primario por punción con aguja gruesa, aspiración con aguja fina) en las 4 semanas anteriores al inicio del tratamiento de estudio; o no recuperadas totalmente de algún efecto colateral de los procedimientos previos.
    8.Diagnóstico de una segunda neoplasia maligna en los últimos 5 años, excepto el carcinoma de células basales, carcinoma cutáneo de células escamosas o carcinoma cervical in situ, adecuadamente tratados.
    9.Uso actual o previsión de la necesidad de alimentos o fármacos conocidos por ser inhibidores potentes del CYP3A4 (ver el apartado 5.4.1.).
    10.Uso actual o previsión de la necesidad de alimentos o fármacos conocidos por ser inductores potentes del CYP3A4 (ver el apartado 5.4.1.).
    11.Administración concurrente de preparaciones de plantas medicinales.
    12.Anormalidad gastrointestinal clínicamente significativa, que pueda alterar la ingesta, tránsito o absorción de los fármacos de estudio, como la incapacidad para tomar medicación oral en forma de comprimidos o el síndrome de malabsoción.
    13.Trastorno mental que limitara la comprensión o la interpretación del consentimiento informado y/o el compromiso de cumplimiento de los requisitos del protocolo.
    14.Cualquier otra patología grave aguda o crónica, médica o psiquiátrica, o anomalía analítica que pueda incrementar sustancialmente el riesgo asociado a la participación de la paciente en el estudio o la administración del producto en investigación, o pueda interferir la interpretación de los resultados del estudio y que, en opinión del investigador, hiciera que la inclusión de la paciente en el estudio resultara inadecuada.
    15.Participación en otros estudios en las 4 semanas anteriores al inicio del estudio y/o durante la participación en el mismo.
    E.5 End points
    E.5.1Primary end point(s)
    Primary Endpoint Phase 1B (Lead-in portion): Adverse Events as characterized by type, frequency, severity (as graded by NCI CTCAE v 4.0) timing, seriousness and relationship to study therapy

    Primary Endpoint - Phase 2: Ki 67 (% positive tumor cells) as tested by IHC (central lab).
    Criterio de valoración primario de la Fase 1B (porción de preinclusión)
    - Acontecimientos adversos descritos según el tipo, frecuencia, intensidad (según la calificación NCI CTCAE v 4.0), temporalidad, gravedad y relación con el tratamiento de estudio.
    - Ki-67 (% de células tumorales positivas) determinado mediante IHC (laboratorio central)
    E.5.1.1Timepoint(s) of evaluation of this end point
    Phase 1B - The primary end point is Adverse Events as characterized by type, frequency, severity (as graded by NCI CTCAEv.4.0) timing, seriousness and relationship to study therapy. The timepoint of evaluation of adverse event is through continous monitoring until up to 28 days after last dose of study treatment or until a new antitumor agent is administered. Phase 2 - The primary end point Ki-67 (% positive tumor cells) as tested by IHC (central lab). The timepoint is baseline, week 2 and Week 6.
    Criterio de valoración primario de la Fase 1B (porción de preinclusión)
    - Acontecimientos adversos descritos según el tipo, frecuencia, intensidad (según la calificación NCI CTCAE v 4.0), temporalidad, gravedad y relación con el tratamiento de estudio.Los tiempos de la evaluación de los acontecimientos adversos es por monitorizción continuada hasta 28 días después de la última dosis de tratamiento de estudio o hasta la administración de un Nuevo agente antitumoral.
    Fase 2: Ki-67 (% de células tumorales positivas) determinado mediante IHC (laboratorio central)Los tiempos son en la selección en la semana 2 y en la semana 6.
    E.5.2Secondary end point(s)
    Secondary Endpoints Phase 1B (Lead-in portion):
    a) Laboratory test abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE v. 4.0) and timing.
    b) Vital Signs.
    c) QTc Interval.
    d) PK parameters of PF-04691502 and letrozole when administered alone and in combination.
    e) Objective tumor response.

    Secondary Endpoints - Phase 2:
    a) Adverse Events as characterized by type, frequency, severity (as graded by NCI CTCAE v.4.0) timing, seriousness and relationship to study therapy.
    b) Laboratory test abnormalities as characterized by type, frequency, severity (as graded by NCI CTCAE v. 4.0) and timing.
    c) Vital Signs.
    d) Objective tumor response.
    e) PK parameters of PF-04691502 when administered alone and in combination with letrozole.
    f) Expression levels of PI3K pathway proteins (eg, pAKT, pS6, stathmin) and markers of cellular proliferation and survival (eg, Ki 67, apoptosis assays) in biopsied tumor tissue.
    g) Genetic alteration, RNA and protein expression data in biopsied tumor tissue relating to PI3K pathway signaling (eg, PIK3CA, AKT mutations, PIK3CA amplification, PTEN protein levels) and other pathways relevant to the biology of ER positive, HER 2 negative early breast cancer.
    Criterios de valoración secundarios de la Fase 1B (porción de preinclusión)
    - Alteraciones analíticas descritas según el tipo, frecuencia, intensidad (según la calificación NCI CTCAE v 4.0) y temporalidad
    - Constantes vitales
    - Intervalo QTc
    - Parámetros FC de PF-04691502 y letrozol al administrarlos solos y en combinación.
    - Respuesta tumoral objetiva
    Criterios de valoración secundarios de la Fase 2
    - Acontecimientos adversos descritos según el tipo, frecuencia, intensidad (según la calificación NCI CTCAE v 4.0), temporalidad, gravedad y relación con el tratamiento de estudio.
    - Alteraciones analíticas descritas según el tipo, frecuencia, intensidad (según la calificación NCI CTCAE v 4.0) y temporalidad
    - Constantes vitales
    - Respuesta tumoral objetiva
    - Parámetros FC de PF-04691502 al administrarlo solo y en combinación con letrozol.
    - Niveles de expresión de proteínas de la vía PI3K (p. ej., pAKT, pS6, estatmina) y marcadores de la proliferación y supervivencia celular (p. ej., Ki-67, análisis de apoptosis) en tejido tumoral biopsiado.
    - Datos de alteración genética, expresión del ARN y proteínas en tejido tumoral biopsiado que estén relacionados con la señalización de la vía PI3K (p. ej., mutaciones PIK3CA, AKT, amplificación PIK3CA, niveles de proteínas PTEN) y otras vías relevantes de la biología del cáncer de mama inicial RE positivo, HER-2 negativo.
    E.5.2.1Timepoint(s) of evaluation of this end point
    Phase 1B:
    a) baseline, day 1, week 3, week 5, week 7, every 4 weeks between weeks 9 and 52. SOC beyond 52 weeks
    b) baseline, day 1, week 3, week 5, week 7, every 4 weeks between weeks 9 and 52. SOC beyond 52 weeks
    c) baseline, day 1, day 2, day 12, end of treatment
    d) day 1, day 2, day 12
    e) baseline, week 12, week 36 and as per SOC at the EOT

    Phase 2:
    a) continous
    b) baseline, day 1 and instead of/or week 6/EOT
    c) baseline, day 1, week 6/EOT, follow up
    d) baseline, week 6/EOT
    e) day 1, week 2 and week 6/EOT (Only patients treated with PF-04691502 and PF-04691502 combined with letrozole)
    f) baseline, week 2 and week 6/EOT
    g) baseline, week 2 and week 6/EOT
    a) Selección, dia 1, semana 3, 5, 7, cada 4 semanas entre semana 9 y 52.. Tratamiento estandar después de la semana 52.
    b)Selección, dia 1, semana 3, 5, 7, cada 4 semanas entre semana 9 y 52.. Tratamiento estandar después de la semana 52.
    c)Selección, dia 1, dia 2, dia 12, fin de tratamiento.
    d)Dia 1, dia 2, dia 12
    e)selección, semana 12, semana 36 y segun tratamiento estándar en Fin de Tratamiento.

    Fase 2
    a) Continuo
    b)elección, dia 1 y fin de tratamiento/ semana 6
    c)EOTselección, dia 1, fin de tratamiento/ semana 6, seguimiento
    d)selección, semana 6/fin de tratamiento
    e)elección, dia 1 y fin de tratamiento/ semana 6 ( solo pacientes tratados con PF-04691502 y PF-04691502 combinado con letrozol).
    f)Selección, semana 2 y semana 6/FDT
    g)Selección, semana 2 y semana 6/FDT
    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 No
    E.6.12Pharmacoeconomic No
    E.6.13Others Yes
    E.6.13.1Other scope of the trial description
    evaluate combination treatment of PF-04691502 and Letrozole
    Evaluar el tratamiento combinado de PF-04691502 y letrozol.
    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) Yes
    E.7.3Therapeutic confirmatory (Phase III) No
    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 trial3
    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 concerned7
    E.8.5The trial involves multiple Member States Yes
    E.8.5.1Number of sites anticipated in the EEA25
    E.8.6 Trial involving sites outside the EEA
    E.8.6.1Trial being conducted both within and outside the EEA No
    E.8.6.2Trial being conducted completely outside of the EEA No
    E.8.7Trial 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
    End of Trial in all participating countries is defined as last patient having the End of Treatment visit.
    El fin de studio de todos los paises participantes se define como el ultimo paciente que realize visita de fin de tratamiento.
    E.8.9 Initial estimate of the duration of the trial
    E.8.9.1In the Member State concerned years2
    E.8.9.1In the Member State concerned months0
    E.8.9.1In the Member State concerned days0
    E.8.9.2In all countries concerned by the trial years2
    E.8.9.2In all countries concerned by the trial months0
    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: 100
    F.1.3Elderly (>=65 years) Yes
    F.1.3.1Number of subjects for this age range: 120
    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 state30
    F.4.2 For a multinational trial
    F.4.2.1In the EEA 220
    F.4.2.2In the whole clinical trial 220
    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)
    At the end of the 6-week treatment in Phase 2, patients may undergo surgery within few days if considered appropriate by the treating physician, or may initiate neo-adjuvant therapy. Neo-adjuvant therapy may consist of chemotherapy as per standard of care at each institution or up to 10 additional weeks of the study treatment (PF-04691502 in combination with letrozole or letrozole alone) until surgery if considered appropriate by the treating physician.
    Al final de las seis semananas de tratamiento en la fase II, los pacientes pueden recibir cirugía si el médico lo considera apropiado o puede iniciar terapia neoadyuvante. La terapia neoadyuvante puede consistir en quimioterapia según el estándar en cada institución o hasta 10 semanas adicionales de tratamiento (PF-04691502 en combinación con letrozol o letrozol solamente) hasta que el médico considere adecuada la cirugía
    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 Decision2011-11-30
    N.Ethics Committee Opinion of the trial applicationFavourable
    N.Ethics Committee Opinion: Reason(s) for unfavourable opinion
    N.Date of Ethics Committee Opinion2011-11-24
    P. End of Trial
    P.End of Trial StatusCompleted
    P.Date of the global end of the trial2012-12-10
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