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Laser zaps acne? small trial fizzles out

NCT ID NCT04466527

Symptom relief Sponsor: Massachusetts General Hospital 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
The trial has finished. Results may not be published yet.
Stopped early This study
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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026

Summary

This study tested whether a fractional carbon dioxide laser can improve moderate to severe acne in adults aged 18 to 40. Participants received up to 3 laser treatments and were followed for changes in blemish count and skin severity. The trial was terminated early and only enrolled 4 people, so results are very limited.

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

Not a phased trial

Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.

Participants

4 people

The number who actually took part.

Started

Nov 2020

Finished

Jul 2022

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 to 40 years

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: 1. Subject must be able and willing to provide written informed consent and comply with the requirements of the study protocol; 2. In good general health, based on answers provided during the screening visit; 3. Subject must be able to read and understand English; 4. Any gender and any Fitzpatrick skin type; 5. Ages 18 through 40; 6. Subjects must have moderate to severe nodular active facial acne vulgaris (PGA 3 or 4) 7. Willing to sun protect treated area for the duration of enrollment in the study and 1 year after treatment; 8. Subjects must be ineligible for or have declined standard of care treatments (e.g. oral isotretinoin therapy). Exclusion Criteria: 1. Participation in another investigational drug or device clinical trial in the past 30 days; 2. Currently undergoing or wish to begin or continue topical treatments; 3. Are pregnant or lactating; 4. History of allergic reaction to topical anesthesia; 5. Subjects may not have undergone oral isotretinoin therapy within the past 12 months; 6. Currently take oral antibiotic or oral therapy for acne; 7. History of keloidal or hypertrophic scarring; 8. Laser treatment in past six months; 9. History of poor wound healing; 10. Clinically significant abnormal findings or conditions which might, in the opinion of the Investigator, interfere with study evaluations or pose a risk to subject safety during the study.

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Conditions

The condition(s) this trial relates to.

acne Acne Vulgaris

As listed by the trial registrant

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

Acne vulgaris

Contacts and locations

Locations

  • MGH Clinical Unit for Research Trials & Outcomes in Skin

    Boston, Massachusetts, 02114, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.