Flag of the European Union EU Clinical Trials Register Help

Clinical trials for 2011-003044-53

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

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

    The EU Clinical Trials Register currently displays   44335   clinical trials with a EudraCT protocol, of which   7366   are clinical trials conducted with subjects less than 18 years old.   The register also displays information on   18700   older paediatric trials (in scope of Article 45 of the Paediatric Regulation (EC) No 1901/2006).

    Phase 1 trials conducted solely on adults and that are not part of an agreed paediatric investigation plan (PIP) are not publicly available (see Frequently Asked Questions ).  
     
    Examples: Cancer AND drug name. Pneumonia AND sponsor name.
    How to search [pdf]
    Search Tips: Under advanced search you can use filters for Country, Age Group, Gender, Trial Phase, Trial Status, Date Range, Rare Diseases and Orphan Designation. For these items you should use the filters and not add them to your search terms in the text field.
    Advanced Search: Search tools
     
    1 result(s) found for: 2011-003044-53. Displaying page 1 of 1.
    EudraCT Number: 2011-003044-53 Sponsor Protocol Number: B1271003 Start Date*: 2012-01-30
    Sponsor Name:Pfizer Inc., 235 East 42nd Street, New York, NY 10017 US
    Full Title: 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
    Medical condition: ESTROGEN RECEPTOR POSITIVE, HER-2 NEGATIVE EARLY BREAST CANCER WITH KI-67 HIGHER THAN 10% AND ESTROGEN RECEPTOR POSITIVE, HER-2 NEGATIVE ADVANCED BREAST CANCER
    Disease: Version SOC Term Classification Code Term Level
    14.1 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) 10070575 Estrogen receptor positive breast cancer LLT
    Population Age: Adults, Elderly Gender: Female
    Trial protocol: DE (Prematurely Ended) BE (Prematurely Ended) SE (Prematurely Ended) ES (Completed) GB (Prematurely Ended)
    Trial results: View results
    Download Options:
    Number of Trials to download:
    Download Content:
    Download Format:
    Note, where multi-state trials are shown in search results, selecting "Full Trial details" will download full information for each of the member states/countries involved in the trial.
    Query did not match any studies.
    For support, Contact us.
    The status and protocol content of GB trials is no longer updated since 1 January 2021. For the UK, as of 31 January 2021, EU Law applies only to the territory of Northern Ireland (NI) to the extent foreseen in the Protocol on Ireland/NI. Legal notice
    As of 31 January 2023, all EU/EEA initial clinical trial applications must be submitted through CTIS . Updated EudraCT trials information and information on PIP/Art 46 trials conducted exclusively in third countries continues to be submitted through EudraCT and published on this website.

    European Medicines Agency © 1995-Fri May 09 22:36:06 CEST 2025 | Domenico Scarlattilaan 6, 1083 HS Amsterdam, The Netherlands
    EMA HMA