Comparative study of the ND:YAG picosecond laser and CO2 fractional laser for acne scars

Comparative study on the efficacy and safety of the ND:YAG picosecond laser and CO2 fractional laser for acne scars

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100046654

Enrollment

Unknown

Registered

2021-05-25

Start date

2021-05-24

Completion date

Unknown

Last updated

2022-01-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acne Scar

Interventions

Experimental group:the treatment of ND:YAG picosecond laser

Control group:CO2 fractional laser

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with acne scars on their cheeks.

Exclusion criteria

Exclusion criteria: 1. Exclusion criteria include history of keloids; 2. Oral isotretinoin within the past 6 months; 3. Pregnancy and lactation; 4. Light sensitivity or the current use of light sensitive drugs; 5. Known lidocaine allergy; 6. Blood coagulation disorders; 7. Any facial radiofrequency or laser treatments, or immunosuppressive drug treatments in the past 6 months.

Design outcomes

Primary

Measure	Time frame
Degree of scars on both sides;	—

Secondary

Measure	Time frame
Improvement of scars on the left and right face;	—

Countries

China

Contacts

Public ContactWu Qiuju

Hospital of Dermatology, Chinese Academy of Medical Sciences

wqj0528@163.com+86 13813970439

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Feb 4, 2026