Comparative Effectiveness of Low-Fluence and High-Fluence 755nm Picosecond Laser for Treatment of Acquired Bilateral Nevus of Ota-like Macules (ABNOM), A Randomized, Split-Lesion Clinical Trial

Status

Recruiting

Phases

Early Phase 1

Study type

Interventional

Source

ChiCTR

Registry ID

ChiCTR2100047471

Enrollment

Unknown

Registered

2021-06-20

Start date

2021-07-01

Completion date

Unknown

Last updated

2022-02-21

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

Conditions

Acquired Bilateral Nevus of Ota-like Macules (ABNOM)

Interventions

Experimental group:big spot low fluence PSAL

Eligibility

Sex/Gender

All

Age

18 Years to 60 Years

Inclusion criteria

Inclusion criteria: 1.Patients with ABNOM, aged 18 to 60 years, male/female; 2.Never underwent any relevant treatment; 3.After fully understanding the treatment plan and risks, patient or the guardian voluntarily signed the informed consent, willing to accept the self-controlled test, and cooperate with the follow-up.

Exclusion criteria

Exclusion criteria: 1.Pregnant or lactating women; 2.Allergic to topical anesthetics; 3.Any active skin disease in the test area; 4.Wound infection or epidermal ulceration at the test site; 5.Other factors the researchers believe might influence the results.

Design outcomes

Primary

Measure	Time frame
photo;pigment value;	—

Secondary

Measure	Time frame
satisfaction rate;	—

Countries

China

Contacts

Public ContactZhang Zhen

Department of Dermatology and Department of Laser and Aesthetic Medicine, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine

zz6503@vip.126.com+86 13817594541

Outcome results

None listed

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