The efficacy and the adverse reactions of laser assisted tattoo removal - a split study using Nanosecond and Picosecond lasers

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

DRKS

Registry ID

DRKS00025487

Enrollment

Registered

2021-06-09

Start date

2019-09-01

Completion date

Unknown

Last updated

2025-04-07

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

Conditions

L81.8

Interventions

Group 1: One half ot the tattoo was treated with a standard nanosecond laser (694 nm). The laser was applied at regular time intervals of 4 weeks for up to eight treatments. Group 2: The other half o

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: full legal age, written consent of the proband

Exclusion criteria

Exclusion criteria: pregnancy

Design outcomes

Primary

Measure	Time frame
Tattoo clearance (primary endpoint) was appraised by physicians, blinded observers and by subjects.	—

Secondary

Measure	Time frame
Pain and adverse reactions (secondary endpoints) were appraised by physicians, blinded observers and by subjects. The extent and duration of adverse reactions were additionally assessed by using a questionnaire and photo-documentation between each consecutive treatment	—

Countries

Germany

Contacts

Public ContactKatharina Weiß

Klinik und Poliklinik für Dermatologie, Universitätsklinikum Regensburg

katharina.weiss@ukr.de+49941/944-9601

Outcome results

None listed

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