Can a radioactive tracer pinpoint Cancer's first stop?
NCT ID NCT07764653
First seen Aug 14, 2026 · Last updated Aug 14, 2026
Summary
This trial is testing whether a radioactive tracer, technetium Tc 99m sulfur colloid, can accurately locate sentinel lymph nodes in women with early-stage breast cancer. The sentinel node is the first lymph node cancer is likely to spread to, and finding it helps guide surgery. The study compares this tracer to a standard blue dye to see which is better at detecting these nodes, and also checks for safety and consistency between the two methods.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- Technetium Tc 99m Sulfur Colloid Injection (a radioactive tracer)
- What this could lead to
- If successful, this could offer a more accurate and safer way to locate sentinel lymph nodes during breast cancer surgery, potentially reducing the need for more invasive lymph node removal.
- What could go wrong
- This is a phase 3 trial, but results are not yet available. The tracer may not be as effective as the standard dye in all patients, and there is a small risk of radiation exposure or allergic reactions.
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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.
Contacts and locations
Locations
-
Peking University Cancer Hospital
Beijing, Beijing Municipality, China
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