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Laser showdown: which works best for acne scars in asian skin?

NCT ID NCT07153679

Symptom relief Sponsor: Second Affiliated Hospital of Xi'an Jiaotong University 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 24, 2026 · Last updated Jun 26, 2026 · Updated 2 times

Summary

This study tested two different lasers on 38 people with atrophic acne scars. Each person received one laser on one side of the face and the other laser on the other side. The goal was to see which laser improved scars more and caused fewer side effects like dark spots.

What this could mean

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

Active substance
1064-nm Nd:YAG picosecond laser and 1927-nm fractional thulium laser
What this could lead to
If one laser proves better, it could offer a more effective and safer option for reducing acne scars in people with darker skin tones.
What could go wrong
This is a small, completed trial with only 38 participants. Results may not apply to everyone, and individual responses to lasers can vary.

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

38 people

The number who actually took part.

Started

Jan 2021

Finished

Aug 2021

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: * Aged between 18 and 40. * Symmetrical atrophic acne scars on both sides of the face. Exclusion Criteria: * Uncontrolled active acne. * Pregnant and lactating women. * Infectious skin diseases at the treatment site. * Have taken retinoid drugs orally within the past 6 months. * Photosensitive individuals or those who have used photosensitive drugs within 2 weeks. * Keloid constitution.

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As listed by the trial registrant

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

Acne scar Acne scars - atrophic

Contacts and locations

Locations

  • The second affiliated hospital of Xi'an Jiaotong University

    Xi’an, Shanxi, 710000, China

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