Could a blue dye spare breast cancer patients from arm swelling?

NCT ID NCT07532096

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tests a simpler way to check for cancer spread after chemotherapy in women with node-positive breast cancer. Doctors will use a blue dye called methylene blue to find and remove a wider area of lymph nodes, instead of the standard method. The goal is to see if this approach is safe and reduces the risk of arm swelling (lymphedema) after surgery. About 240 women will take part, and they will be followed for two years.

What this could mean

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

Active substance

methylene blue

What this could lead to

If successful, this could simplify breast cancer surgery by safely using a less invasive lymph node removal technique, potentially reducing arm swelling after treatment.

What could go wrong

This is an early-stage study with no control group, so results may not apply to all patients. The dye method may miss cancer cells, leading to false negatives.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Xijing hospital

    Xi'an, Shaanxi, 710032, China

    Contact Phone: •••-•••-•••• Email: •••••@•••••