Unknown NA INTERVENTIONAL 2-arm NCT04813419

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

Efficacy and Safety Comparison Between Fractional 2940nm Er:YAG Laser and Fractional 1927nm Thulium Laser in the Treatment of Facial Atrophic Acne Scars

Sponsor: Second Affiliated Hospital, School of Medicine, Zhejiang University

Conditions Atrophic Acne Scar

Interventions 1927nm thulium laser 2940nm Er:YAG laser

Updated 4 times since 2021 Last updated: Mar 21, 2021 Started: Jun 11, 2020 Primary completion: Mar 20, 2021 Completion: Apr 30, 2021

This information is for research purposes only and is not medical advice. Consult a healthcare provider before making any medical decision.

This NA trial investigates Atrophic Acne Scar and is currently ongoing. Second Affiliated Hospital, School of Medicine, Zhejiang University leads this study, which shows 4 recorded versions since 2020 — indicating limited longitudinal coverage. The change history captured here reflects the iterative nature of clinical trial conduct.

Status Flow

Change History

4 versions recorded

Sep 2024 — Present [monthly]

Unknown NA
Jul 2024 — Sep 2024 [monthly]

Unknown NA

Status: Unknown Status → Unknown
Apr 2023 — Jul 2024 [monthly]

Unknown Status NA

Status: Recruiting → Unknown Status
Apr 2021 — Apr 2023 [monthly]

Recruiting NA

First recorded

Jun 2020

Trial started

Per CT.gov start date — pre-dates our first snapshot

Eligibility Summary

No eligibility information available.

Contact Information

Sponsor contact:

Second Affiliated Hospital, School of Medicine, Zhejiang University

Data source: Second Affiliated Hospital, School of Medicine, Zhejiang University

For direct contact, visit the study record on ClinicalTrials.gov .

Study Locations

• Hangzhou, China