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This is a multicentre, prospective, observational, no post-authorization study. This study will be opened for recruitment approximately for 12 months for a pilot phase including at least 25-30 patients and 6 controls and for 12 additional months to complete patient and control inclusion until 90 patients and 20 control depending on the first part study results.
Full description
After enrolment, patients will be assigned to one of the following cohorts according to their level of hormone-resistance:
In both cohorts it will be collected residual pre-treatment tumor samples from metastatic lesions, preferably obtained after last treatment just prior to study entry, and/or primary breast tumor; as well as serial blood samples at baseline, after 6 weeks, at the same time of radiological re-evaluation (3 months after ET initiation) and at progressive disease (PD) which will be used for serial analytic determinations of the expression profiles of Natural Killer (NK) cells, other lymphoid innate cells, NKG2D ligands, cytokines and other possible biomarkers; in addition to obtain local data of hemogram and estradiol, Follicle Stimulating Hormone (FSH) and Luteinizing Hormone (LH) levels.
Patients who have participated in the study during their first line of ET are eligible to participate after progression, when they initiate the second line of ET (in this case, inclusion/exclusion criteria should be checked newly and Informed Consent Form (ICF) signed again).
From the control population it will be collected blood and local data (e.g. hemogram, estradiol, FSH and LH levels), in a single time-point after ICF signature.
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Inclusion and exclusion criteria
INCLUSION AND EXCLUSION CRITERIA OF PATIENTS
Inclusion Criteria:
Exclusion Criteria:
In the case of values of Neutrophil Count (NC) < 1.5 x 109/L prior to study entry or in case of patients who have received or are going to receive an investigational product, the information about NC or the investigational product should be checked with chief investigator in order to check any possible interference with the study results.
INCLUSION CRITERIA OF CONTROL PARTICIPANTS
Postmenopausal women are defined as women fulfilling any one of the following criteria (based on the National Comprehensive Cancer Network (NCCN) definition of menopause [NCCN 2008]):
Women who didn't comply with any of the prior criteria will be considered premenopausal women for the purposes of the study.
32 participants in 2 patient groups
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Central trial contact
Start-Up Unit Manager; Study Project Manager
Data sourced from clinicaltrials.gov
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