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Glowing dye may save surgical flaps in head and neck cancer patients

NCT ID NCT07635420

Disease control Sponsor: Region Skane Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This trial tests whether a special dye called indocyanine green (ICG), injected during surgery, helps surgeons see blood flow in reconstructed tissue better than standard checks. About 244 adults having head and neck reconstruction will be randomly assigned to get the dye or standard care. The main goal is to see if the dye reduces partial flap loss needing extra treatment within 30 days.

What this could mean

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

Active substance
Indocyanine green (ICG) dye
What this could lead to
If it works, this could reduce the need for repeat surgeries after head and neck reconstruction by helping surgeons spot blood flow problems earlier.
What could go wrong
This is a relatively small, early-stage trial. ICG is already used in other surgeries, but its benefit here is unproven. There is a small risk of allergic reaction to the dye.

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.

Phase

Phase 4

Runs after approval, following long-term safety and how well the treatment works in everyday use.

Participants

About 244 people

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

Expected to start

Oct 2026

An estimate. Start dates often move.

Expected to finish

Aug 2029

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.

Ages

18 years and older

Sex

Anyone

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: * Age ≥18 years at the time of inclusion * Scheduled to undergo microvascular free flap reconstruction as part of oncologic, trauma, or benign surgery in the head and neck area * Ability to understand study information and provide written informed consent Exclusion Criteria: * Known allergy to indocyanine green or iodine * Severe hepatic or renal impairment * Confirmed or suspected pregnancy * Breastfeeding

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Conditions

The condition(s) this trial relates to.

head and neck cancer Head and Neck Neoplasms

As listed by the trial registrant

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

Free flap Free flap evaluation Free tissue flaps Head and neck cancer (H&N) Indocyanine green Indocyanine green (ICG) Microsurgery Randomised controlled trial

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

  • Dept. of Plastic and Reconstructive Surgery and Dept. of Health Sciences, Skåne University Hospital, Malmö, Sweden.

    Malmö, Sweden

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