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2940nm Er:YAG Laser and 1927nm Thulium Laser in Improving Atrophic Acne Scars

NCT04813419 · Status: UNKNOWN · Phase: NA · Type: INTERVENTIONAL · Enrollment: 30

Last updated 2021-03-24

No results posted yet for this study

Summary

Fractional non-ablative laser (FNAL) has been widely used in improving acne scarring. However, there was only one study reported efficacy and safety of the fractional non-ablative 1927nm thulium laser (FTL) and no studies have reported a comparison between FTL and fractional ablative 2940nm Er:YAG laser(FEL), which had been proved effective and safety in many studies. Thus, we designed a prospective, simultaneous spilt-face trial to evaluate the efficacy and safety of FTL in the treatment of acne scarring and make a comparison between FTL and FEL, hoping to provide a new available modality for patients who are intolerable or reluctant to ablative lasers.

Conditions

  • Atrophic Acne Scar

Interventions

DEVICE

1927nm thulium laser

The right face of subjects were treated with fractional 2940nm Er:YAG laser(MCL 31 Asclepion Laser Technologies, Germany), N25 mode. Energy was adjusted from 12 to 27J according to the severity of scarring. The left face of subjects were treated with fractional 1927nm thulium laser(Lavieen, korea). Parameters were set as stamp mode, a spot size of 5\*5mm, a pulse time of 1000us, an energy intensity of 3645mJ/cm2 and a repetition of 1-3 times. All patients received 3 treatment sessions totally at an average interval of 4 to 6 weeks.

DEVICE

2940nm Er:YAG laser

The right face of subjects were treated with fractional 2940nm Er:YAG laser(MCL 31 Asclepion Laser Technologies, Germany), N25 mode. Energy was adjusted from 12 to 27J according to the severity of scarring. All patients received 3 treatment sessions totally at an average interval of 4 to 6 weeks.

Sponsors & Collaborators

  • Second Affiliated Hospital, School of Medicine, Zhejiang University

    lead OTHER

Principal Investigators

  • Suiqing S Cai, doctor · 2nd Affiliated Hospital, School of Medicine, Zhejiang University, China

Study Design

Allocation
NON_RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
40 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2020-06-11
Primary Completion
2021-03-20
Completion
2021-04-30

Countries

  • China

Study Locations

More Related Trials

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT04813419 on ClinicalTrials.gov