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Freeze or cream? study pits two skin spot treatments head-to-head

NCT ID NCT06461442

Symptom relief Sponsor: University of California, Davis 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 07, 2026 · Updated 2 times

Summary

This study compares two treatments for actinic keratosis, rough skin spots caused by sun exposure. About 73 adults with at least 10 spots on their head, neck, or limbs will receive both cryotherapy (freezing) and a 5-FU cream on different body areas. Researchers will track which treatment clears more spots, side effects, and how satisfied patients are over 12 months.

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 73 people

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

Started

Jul 2024

Expected to finish

Sep 2026

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: * 18 years of age or older * Has a clinical diagnosis of 10 or more AKs in the head, neck, or extremities areas * Able to give informed consent themselves * Willing to return for follow up visits Exclusion Criteria: * Cognitively Impaired * Incarcerated * Non-English speakers * Immuno-comprised status * Received any kind of treatment for AK within the past 2 months * Use of systemic retinoids within the past 3 months * Suspicion of cancer in the target area * Porphyria * Genetic skin cancer disorders * Allergy to trial drugs or peanut/soy products * Pregnancy or breast-feeding

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Conditions

The condition(s) this trial relates to.

actinic keratosis

As listed by the trial registrant

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

Actinic keratoses

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

    The full official record for this study. This one lists no contact details, but it is the first place any would appear.

    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

  • University of California, Davis - Dermatology Department

    Sacramento, California, 95816, United States

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