Removal of Colors Tattoo (Multiple Colors) Clinical Trial
Name of Device: Eraser Tattoo Removal Device
Device Description: The Eraser device is a mechanical device, resembling tattoo devices but
with an innovative mechanism for dripping treatment fluid over reciprocating needles and
returning used fluid into a reservoir chamber. The device is intended for removal of
tattoos.
Objectives: This study is a continuation of a previous feasibility study, which tested the
ability of the device to remove tattoos from small skin areas. The purpose of this study is
to evaluate the safety and effectiveness of the Eraser Tattoo Removal system for removal of
skin tattoos in their entirety.
Subject Population: 20 patients in the medical center. Subject enrollment will include (i) a
variety of tattoo colors (multiple colors) (ii) a variety of tattoo composition, contour
lines and shadings (iii) Subjects with different skin colors (white, tanned, dark, etc…)
(iv) professional and amateur tattoos.
Structure: A prospective, non-randomized, open, clinical study designed according to FDA
guidelines; ISO 14155: standard for clinical studies of medical devices; and the procedures
of the Israeli Ministry of Health for clinical studies.
After informed consent is signed, demographic details and medical history will be taken and
a physical examination performed. Subjects will be treated with the Eraser device, using
salicylic acid (5%) as washing fluid. The skin will be examined by a physician and the
tattoo area will be photographed. The Eraser device will be used to remove the tattoo from
the entire tattoo area (up to 30 minutes in a single session). An absorbent bandage will be
put on the treated area for one-hour post treatment. After Care Treatment, based on a
Dermatologist's consultation, will be performed on a case-by-case basis (for example, use of
antibiotic ointments in case of infection). All subjects must refrain from exposure to the
sun for 90 days following each treatment.
Follow-up: The subject will return for follow-up at one week, two weeks, 1 month and two
months (if tattoo removal and skin healing is complete), or up to six months (if skin
healing/ tattoo removal are not complete by two months), or until the healing of the tattoo
removal site is completely resolved or until the investigator determines that additional
treatments will provide no further benefit to the patient. In each follow-up visit, a
physician will perform a physical examination, check the skin over and around the treatment
area, and take photographs of the treated area. Images from last follow-up will be compared
with images of the same site taken before the removal procedure, for evaluation of treatment
efficacy and safety.
Repeat treatments: if tattoo removal is not complete, up to two additional treatments will
be performed, based on the investigator's discretion. After each treatment, follow-up will
continue as described above.
Blinding: Non-Applicable Concurrent Control: There is no concurrent control group in this
study. Images of tattoos before treatment will serve as the reference measure, to which
images of healed skin, several weeks after tattoo removal, will be compared.
Sample Size: 20 subjects will be enrolled in the study. Primary Effectiveness Variables: The
primary measure of effectiveness will be the pigment clearance, as evaluated by image
comparison on a 1-5 analog scale (5 - 81-100% clearance- excellent removal; 4 - 61-80% -
good removal; 3 - 41-60% - moderate removal; 2 - 21-40% - fair removal; 1 - 0-20% - poor
removal). Effectiveness will be calculated for the total study group and for individual
sub-groups (skin type, pigment colors, etc.). Effectiveness will be analyzed separately for
the area affected (percentage of treated area that showed any reaction to treatment) and for
the change in color brightness (if, due to technical reasons, part of the tattoo showed a
major effect, this area will be evaluated for the change in color brightness). For both
analyses, the same scale will be used.
For safety assessment, the rate of systemic and dermatologic adverse events will be
calculated and reported. The data will be listed by type of event and by severity.
Specifically, textural change, hypo- and hyper- pigmentation will be followed and their
rates calculated.
Data Analysis: For this clinical study, descriptive statistics will be used. Successful
treatment will be a result of 3 or more (at least, moderate tattoo removal) on the
brightness change scale.
Study Sponsor: Hawk Medical Technologies Ltd.
n/a
Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment