To evaluate safety and efficacy of Tri-Luma® cream as an adjunctive treatment to cryotherapy when used in the pre- and post-procedure phases for the treatment of solar lentigines on the back of the hands and in the prevention of post-inflammatory hyperpigmentation after cryotherapy.
To evaluate safety and efficacy of Tri-Luma® cream as an adjunctive treatment to cryotherapy when used in the pre- and post-procedure phases for the treatment of solar lentigines on the back of the hands and in the prevention of post-inflammatory hyperpigmentation after cryotherapy. The study has 13 weeks for each subject. Five visits will take place: at Baseline, week 2, 5, 9 and 13 after the cryotherapy.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
PREVENTION
Masking
NONE
Enrollment
50
Pre-procedure phase (From Baseline up to Week 2) treated daily for their solar lentigines with the investigational drug (Tri-Luma® cream) for 2 weeks. Post-procedure phase (From week 2 up to Week 13 - Visit ) \- Tri-Luma® cream treatment phase (from week 5 up to week 13 - visit 3 up to visit 5):The investigational drug (Tri-Luma® cream) will be applied again (group 1) for a minimum of 4 weeks and up to 8 weeks, according to the Global Improvement of solar lentigines and absence of PIH.
Procedure performed at week 2.
Solar Lentigines Count
Solar lentigines count up to 13 weeks
Time frame: up to 13 weeks
Change From Baseline in Melanin Levels
This assessment was made using a narrowband reflectance spectrophotometer (Mexameter MX18®, Courage-Khazaka, Germany). The measurement is based on absorption/reflection. The probe of the Mexameter® MX 18 emits three specific light wavelengths. A receiver measures the light reflected by the skin. As the quantity of emitted light is defined, the quantity of light absorbed by the skin can be calculated. The melanin is measured by two specific wavelengths (red: 660 nm and near infrared: 880 nm) chosen to correspond to different absorption rates by the pigments. The quantification of melanin is presented as a value that varies from 0-999. The higher the value, the larger is the amount of melanin on the skin.
Time frame: Baseline and up to 13 weeks
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