3 Years Long-Term Results of Facial photoaging After alexandrite 755-nm picosecond laser with specialized optic- A split-face, single-blinded, randomized controlled comparison

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR1900026070

Enrollment

Unknown

Registered

2019-09-20

Start date

2014-09-01

Completion date

Unknown

Last updated

2019-09-30

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

Conditions

photoaging

Interventions

Contralateral face control:PSAL with focus lens array

Eligibility

Sex/Gender

Male

Age

45 Years to 55 Years

Inclusion criteria

Inclusion criteria: Healthy Chinese subjects with baseline presence of mild to moderate photodamage were recruited to the study.

Exclusion criteria

Exclusion criteria: Exclusion criteria included active dermatological disease on the face, history of poor wound healing, and keloidal scar formation, pregnancy or lactation, presence of baseline tan, and the use of topical or oral retinoids in the 8 months prior to trial commencement. Patients with documented photosensitivity, taking photosensitizing medications, or received previous laser, chemical peel or filler treatments in the past 6 months were also excluded.

Design outcomes

Primary

Measure	Time frame
the improvement of photoaging;	—

Countries

China

Contacts

Public ContactZhang Zhen

Shanghai 9th People's Hospital Shanghai Jiaotong University, School of Medicine

860382817@qq.com+86 15618690545

Outcome results

None listed

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