Clinical trial No longer in our active list Observational Ages 18 to 85 Women only

Comparing techniques for locating non-palpable breast lesions before surgery

Official title: A Retrospective Multicentric Clinical Study Comparing Different Techniques for Intraoperative Localization of Non-palpable Breast Lesions During Breast Conservative Surgery

Run by Istituti Clinici Scientifici Maugeri SpA · NCT05942105 · Data updated 2026-05-14

This study is no longer in our active list. It may have stopped recruiting or finished. The details below are as of 2026-05-14 and are kept for reference. Check ClinicalTrials.gov for its current status, or see similar studies below.

This study is testing different ways to find small breast tumors that can’t be felt before surgery to see which method works best for patients.

Quick facts

Study typeObservational
Ages18 Years to 85 Years
SexWomen only
Enrollment1064 (estimated)
SponsorIstituti Clinici Scientifici Maugeri SpA
Academic / other
Drugs / interventionschemotherapy
Locations1 site (Pavia, Lombardia)
Trial IDNCT05942105 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are females who have undergone breast conservative surgery for non-palpable breast lesions with specific histological diagnoses.

Probably not a fit

Patients with benign breast lesions or those with clinically palpable lesions will not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This observational study evaluates different localization techniques for non-palpable breast lesions in patients undergoing breast conservative surgery. It focuses on comparing the effectiveness of wire guided localization, radioactive seed localization, and carbon dye methods to ensure accurate detection and complete resection of tumors. The study aims to identify the best approach to minimize the risk of local recurrence and the need for additional surgeries. By analyzing data from multiple centers, it seeks to provide insights into the most effective preoperative strategies for these patients.

Why it matters

Potential benefit: If successful, this study could improve surgical outcomes and reduce the need for re-excision in breast cancer patients.

How similar studies have gone: Previous studies have shown varying success with localization techniques, but this study aims to provide a comprehensive comparison of established methods.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Female sex;
* Patients who underwent breast conservative surgery for non-palpable occult breast lesions;
* Intraoperative localization of breast lesion with WGL, ROLL, magnetic seed, carbon dye;
* Preoperative diagnosis on histology or cytology of borderline lesion (B3 or C3) or malignant lesion (B4-B5 or C4-C5).

Exclusion Criteria:

* Diagnosis of benign breast lesion, both on preoperative needle breast biopsy (B2) or on fine needle breast aspiration (C2);
* Clinically palpable breast lesion;
* Localization of a non-palpable lesion through two or more different techniques;
* Breast tumor localization with clip in patients who underwent neoadjuvant chemotherapy.

Where it's running

  • Istituti Clinici Scientifici Maugeri SpA
    Pavia, Lombardia, Italy
    Recruiting

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.