About this trial
Extracellular vesicles (EVs) are lipid bilayer-delimited particles, naturally released from cells and mediators of intercellular cross-talk. In breast cancer (BC), EVs seem to be involved in the tumor microenvironment's shaping, in cancer cells invasion and in the set-up of metastasis.
Clinical studies have provided initial evidence that these vesicles may have a prognostic and predictive value in breast cancer. Considering their ubiquitous presence in body fluids and their minimally invasive assessment through blood sampling, EVs could have a potential as liquid biopsy-derived biomarkers. Their quantification though is a complex task requiring complicated and time-consuming pre-analytical procedures of EVs isolation.
This protocol want to develop a new method for the detection of tumor-derived-EVs associated proteins, based on the use of Single Molecule Array (SiMoA), a digital ELISA technology able to detect and quantify extremely low concentrations of target proteins or particles.
The aim of this study is to evaluate how this new technology can allow the quantification of EVs plasma levels in patients affected by BC, providing useful diagnostic and prognostic information.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Signing of a specific informed consent for participation to the study
Female sex
Diagnosis of early breast cancer;
Indication for surgery after multidisciplinary discussion.
Disqualifiers
Presence of distant metastases
Synchronous presence of a different tumor
Indication to neoadjuvant chemotherapy
Diagnosis of breast cancer
Trial population
Breast cancer patients
Trial design
Case-control
Prospective
Treatments tested in this trial
Blood sample
Diagnostic testAnalysis of plasma in order to quantify and characterize EVs
Treatment groups
Trial outcomes
Primary outcomes
EVs levels in early BC
Determination of plasma EVs levels in patients with EBC by SIMOA digital ELISA and evaluation of the difference of their concentration compared to healthy controls
EVs levels in metastatic BC
Determination of plasma EVs levels in patients with first diagnosis of metastatic BC by SIMOA digital ELISA and evaluation of the difference of their concentration compared to healthy controls
Secondary outcomes
EVs levels after surgery
Determination of plasma EVs levels in patients with early BC one month after surgery and comparison with pre-surgery EVs levels in order to evaluate any qualitative of quantitative modifications in circulating EVs
EVs levels after chemotherapy treatment
Determination of plasma EVs levels in patients with first diagnosis of metastatic BC after 4 months of systemic therapy and comparison with pre-therapy EV's plasma levels
Sponsors and contacts
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