Green dye could replace extra incisions in breast cancer surgery
NCT ID NCT07362485
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests if a safe green dye (indocyanine green) can help surgeons find lymph nodes that might contain cancer during a mastectomy, without needing a separate cut under the arm. About 90 women with early-stage breast cancer will receive the dye and a standard radioactive tracer. The goal is to see if the dye alone can accurately identify the key lymph nodes, potentially simplifying the procedure and reducing side effects.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 90 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Aug 2022
- Expected to finish
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Jun 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Female participants only
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Clinically node-negative, DCIS, invasive T1- T3 breast cancer confirmed by biopsy. * Preoperative axillary ultrasound to confirm clinical node-negative status. * Indication (or preference) for mastectomy and simultaneous SLN procedure. * Written informed consent according to ICH/GCP and national regulations. Exclusion Criteria: * Patients \< 18 years old * Breast conserving surgery * Direct reconstruction (with autologous tissue or implant) * Known allergy for indocyanine green (ICG) or radioisotope technetium (99mTc), intravenous contrast or iodine * Other concurrent solid tumour * Hyperthyroidism or thyroid cancer * Pregnancy or breast feeding * Psychological, familial, sociological or geographical factors that could potentially hamper compliance with the study protocol
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
2 sites. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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Isala
RECRUITINGZwolle, Overijssel, 8025 AB, Netherlands
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St. Antonius Ziekenhuis
RECRUITINGUtrecht, Utrecht, 3543 AZ, Netherlands
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