Can a single tracer light up cancer's first stop? a trial puts a hybrid dye-and-radioactive marker to the test.

NCT ID NCT06666634

First seen Jul 22, 2026 · Last updated Jul 23, 2026 · Updated 1 time

Summary

This trial tests whether a new hybrid tracer, ICG-99mTc-nanoscan, can replace the standard tracer for sentinel node biopsy in people with penile cancer, melanoma, or oral cancer. The hybrid tracer combines a fluorescent dye with a radioactive marker, potentially allowing surgeons to see lymph nodes both before and during surgery with one injection. Researchers will compare how well the new tracer matches the standard one in identifying sentinel nodes on imaging. The study enrolls 29 adults scheduled for a sentinel node procedure as part of their routine care.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance
a hybrid tracer called ICG-99mTc-nanoscan, combining a fluorescent dye and a radioactive marker to help surgeons locate sentinel lymph nodes
What this could lead to
If the new tracer proves as effective as the standard one, it could simplify sentinel node procedures by allowing both preoperative imaging and real-time surgical guidance with a single injection.
What could go wrong
This is a small validation study with only 29 participants, so results may not apply broadly. The new tracer might not match the standard's accuracy, and there is a risk of allergic reaction or false negatives.

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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

  • NKI-AVL

    Amsterdam, Netherlands

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