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Clownfish mucus may hold the key to jellyfish sting prevention

NCT ID NCT00114894

Prevention Sponsor: University of Minnesota 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
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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 30, 2026 · Last updated Jul 31, 2026 · Updated 1 time

Summary

This field study tests whether a topical lotion based on clownfish mucus can prevent jellyfish stings in real ocean conditions. Healthy volunteers planning to snorkel for 30–45 minutes apply the lotion before entering the water. The trial compares the sting-inhibitor lotion against a standard sunscreen placebo to see if it reduces the number of stings.

What this could mean

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

Active substance
a topical jellyfish sting inhibitor based on clownfish mucus, called Safe Sea
What this could lead to
If it works, this could offer a reliable way to prevent jellyfish stings for swimmers and snorkelers worldwide.
What could go wrong
This is a small field test with only 12 participants, and lab results may not hold up in real ocean conditions. The lotion's effectiveness may also vary by jellyfish species.

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 3

Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.

Participants

12 people

The number who actually took part.

Start date

Apr 2004

Finished

Feb 2006

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

Accepted

You do not need to have the condition being studied to take part.

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: * Healthy volunteers planning on snorkeling for 30 to 45 minutes. Exclusion Criteria: * Pregnancy * Severe allergy to jellyfish * Allergy to any topical dermatologic product

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Conditions

The condition(s) this trial relates to.

Bites and Stings

As listed by the trial registrant

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

Bites and stings

Contacts and locations

Locations

  • Dry Tortugas National Park

    Key West, Florida, 33041, United States