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New study uses dye to watch Radiation's hidden effects on arm lymphatics

NCT ID NCT07297927

Knowledge-focused Sponsor: Inah Kim Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 27, 2026 · Last updated Aug 27, 2026 · Updated 2 times

Summary

This study watches how the lymphatic system changes after radiation therapy in 40 women with breast cancer. Researchers use a safe dye and special camera to see early signs of arm swelling (lymphedema). The goal is to find ways to predict and prevent this side effect in the future.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

About 40 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2025

Expected to finish

Oct 2028

An estimate. End dates often move.

Lead sponsor

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.

Who is studied

Female breast cancer survivors (stage I-III) scheduled for adjuvant radiotherapy after surgery. Participants are recruited consecutively from the Department of Rehabilitation Medicine, Radiation Oncology and General Surgery at Hallym University Dongtan Sacred Heart Hospital. The study population represents patients at risk for radiation-induced lymphatic dysfunction or breast-cancer-related lymphedema.

Ages

18 years and older

Sex

Female participants only

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Female, ≥18 years old * Pathologically confirmed stage I-III breast cancer * Scheduled to receive postoperative radiotherapy (RT) Exclusion Criteria: * Previous or current lymphedema * Prior radiotherapy to the ipsilateral breast or axilla * History of neoadjuvant chemotherapy * Severe systemic diseases (heart, renal, hepatic failure) * Active infection * Pregnancy or lactation Allergy to indocyanine green (ICG) or iodine-based contrast agents

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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm lymphedema

As listed by the trial registrant

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

Breast neoplasms Lymphedema due to radiation

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Dongtan Sacred Heart Hospital

    RECRUITING

    Hwaseong-si, Gyeonggido, 18450, South Korea

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