Tissue Resistivity in Breast Cancer Patients

December 11, 2019 updated by: Ente Ospedaliero Cantonale, Bellinzona

Minimally Invasive Procedure for the Discrimination of Tissue Resistivity in Breast Cancer Patients

The resistivity measurements will be done by introducing a needle-probe into fresh healthy, peritumoral, and tumoral ex vivo tissues.

Study Overview

Status

Completed

Conditions

Detailed Description

Patients affected by breast cancer will have their tissue analysed immediately following their surgical excision for the treatment of breast cancer. Two probes will be used: a linear probe of 4 needle-electrodes positioned in a row that is able to perform Electrical Impedance Spectroscopy (EIS) measurements and a circular probe of 8 needle-electrodes arranged into a circular pattern that is able to generate cross sectional images (Electrical Impedance Tomography maps). Firstly, the linear probe will be inserted in the tumor parenchyma at a penetration depth of about 2 mm and the tissue impedance measurement will be performed along a broad spectrum of frequencies for few minutes. Approximately 10 seconds for each measurement will be needed. Subsequently, if the size of the tissue will allow it, the circular probe will be inserted in the tumor parenchyma at the same penetration depth and 10 cross sectional maps will be generated (approximately 30 seconds in total). Both information obtained using the linear and the circular probes will be integrated for a full characterization of the tissue under examination.

Study Type

Observational

Enrollment (Actual)

105

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

      • Mendrisio, Switzerland, 6850
        • Ospedale Regionale di Mendrisio

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

N/A

Genders Eligible for Study

Female

Sampling Method

Probability Sample

Study Population

The target population of this study are female patients with first radiological diagnosis of breast cancer needing for surgery and subsequent histological examination to confirm the diagnosis.

Description

Inclusion Criteria:

  • Age >18 years
  • First radiological diagnosis of breast adenocarcinoma needing a histological confirmation
  • Written Informed Consent

Exclusion Criteria:

  • Tumor mass diameter < 1 cm
  • Surgical specimen (harbouring tumoral + peritumoral tissue) diameter < 2 cm

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Resistivity measurements
The resistivity measurements will be done by introducing the needle-probe into fresh healthy, peritumoral, and tumoral ex vivo tissues
To measure and compare the tissue impedance values obtained by analysing ex vivo non-neoplastic (healthy and peritumoral) and neoplastic breast tissues

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Breat tissue characterization
Time Frame: 30 minutes from surgery
Use of Electrical Impedance Spectroscopyuse (EIS) to characterize ex vivo non-neoplastic (healthy and peritumoral) and neoplastic breast tissues
30 minutes from surgery

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Evaluation of the precision of each EIS measurement
Time Frame: 30 minutes from surgery
To evaluate the precision of each EIS measurement (healthy, peritumoral, cancerous) performed by the tissue impedance analyser in the same subject
30 minutes from surgery
Correlation between electrical and biological results
Time Frame: 30 minutes from surgery
To correlate the electrical behaviour of the breast cancer tissue to pathological and biological information
30 minutes from surgery

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

December 15, 2017

Primary Completion (Actual)

September 25, 2019

Study Completion (Actual)

September 25, 2019

Study Registration Dates

First Submitted

January 11, 2018

First Submitted That Met QC Criteria

January 11, 2018

First Posted (Actual)

January 18, 2018

Study Record Updates

Last Update Posted (Actual)

December 12, 2019

Last Update Submitted That Met QC Criteria

December 11, 2019

Last Verified

December 1, 2019

More Information

Terms related to this study

Other Study ID Numbers

  • OBV-GASTRO-001

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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