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Comparative study for the efficacy and safety of the 755-nm alexandrite picosecond laser and ablative CO2 fractional laser for facial atrophic acne scars

Comparative study for the efficacy and safety of the 755-nm alexandrite picosecond laser and ablative CO2 fractional laser for facial atrophic acne scars

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR1800019028
Enrollment
Unknown
Registered
2018-10-21
Start date
2016-01-01
Completion date
Unknown
Last updated
2019-10-14

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

Conditions

acne scar

Interventions

Group 1:ablative CO2 fractional laser
Group 2:755-nm alexandrite picosecond laser

Sponsors

Dermatology Hospital, Chinese Academy of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
All
Age
18 Years to No maximum

Inclusion criteria

Inclusion criteria: 1. Healthy men and women aged 18 years or older; 2. having atrophic acne scars; 3. Ability and willingness to comply with the time and requirements for all interviews, treatment and evaluation; 4. Be able to understand and provide written information.

Exclusion criteria

Exclusion criteria: 1. history of keloid; 2. history of oral isotretinoin within the preceding 6 months; 3. pregnancy and lactation; 4. photosensitivity or current use of photosensitive drugs; 5. known allergy to lidocaine; 6. any facial radiofrequency or laser treatment in the last 6 months; 7. therapy with immunosuppressive drugs.

Design outcomes

Primary

MeasureTime frame
ECCA grading scale;—

Secondary

MeasureTime frame
4-point scale;—

Countries

china

Contacts

Public ContactTong Lin

Dermatology Hospital, Chinese Academy of Medical Sciences

ddlin@hotmail.com+86 13951902258

Outcome results

None listed

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