A controlled trial of 730-nm, 532-nm picosecond laser and Q-switched 694-nm nanosecond laser in the treatment of freckles and solar lentigines

Status

Active, not recruiting

Phases

Early Phase 1

Study type

Observational

Source

ChiCTR

Registry ID

ChiCTR2200058573

Enrollment

Unknown

Registered

2022-04-11

Start date

2022-04-01

Completion date

Unknown

Last updated

2024-01-08

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

Conditions

None listed

Interventions

case series:None

Eligibility

Sex/Gender

All

Age

18 Years to 65 Years

Inclusion criteria

Inclusion criteria: 1. Aged 18-65 years; 2. Fitzpatrick II-IV skin type; 3. Freckles and solar spots may be evident through an ophthalmic examination or dermoscope/confocal microscope.

Exclusion criteria

Exclusion criteria: 1. Pregnant or lactating patients; 2. Patients with other skin diseases (such as light sensitivity, cicatricial constitution, melasma, skin tumors, infected persons in the treatment area), systemic diseases (diabetes, hypertension, cardiovascular diseases, etc.) and mental diseases; 3. Those who have received any laser, injection, radiofrequency or surgical treatment in the last 3 months; 4. Patients who could not follow up on schedule or could not cooperate with the study for other reasons.

Design outcomes

Primary

Measure	Time frame
VISIA speckles related index counting;photography score;	—

Countries

China

Contacts

Public ContactWa Qingbiao

295615394@qq.com+86 13981987190

Outcome results