Outcome
Type |
Measure |
Description |
Time frame |
Safety issue |
Primary |
the percentage change of skin tone index ITA° value of facial solar lentigines from baseline |
measure L* (luminance) and b* (yellow/blue component) values at baseline and 4th week by color meter (CR-400 Chroma Meter) to assess the ITA° percentage change. (ITA°=tangent arc((L*-50)/b*) 180/3.14159) |
4 week |
|
Secondary |
the value change of skin tone index ITA° value of facial solar lentigines from baseline |
measure L* (luminance) and b* (yellow/blue component) values by color meter (CR-400 Chroma Meter) at baseline and 4th week to assess the ITA° value change. (ITA°=tangent arc((L*-50)/b*) 180/3.14159) |
4 week |
|
Secondary |
the value change of skin tone index ITA° value of facial solar lentigines from baseline |
measure L* (luminance) and b* (yellow/blue component) values by color meter (CR-400 Chroma Meter) at baseline and 2nd week to assess the ITA° value change. (ITA°=tangent arc((L*-50)/b*) 180/3.14159) |
2 week |
|
Secondary |
the value change of melanin index of facial solar lentigines from baseline |
measure the melanin index by CK Mexameter at baseline and 2nd week |
2 week |
|
Secondary |
the value change of melanin index of facial solar lentigines from baseline |
measure the melanin index by CK Mexameter at baseline and 4th week |
4 week |
|
Secondary |
the percentage change of melanin index of facial solar lentigines from baseline |
measure the melanin index by CK Mexameter at baseline and 2nd week |
2 week |
|
Secondary |
the percentage change of melanin index of facial solar lentigines from baseline |
measure the melanin index by CK Mexameter at baseline and 4th week |
4 week |
|
Secondary |
rating the improvement of facial solar lentigines on the facial image taken by VISIA, skin analysis imaging system |
use Physician Global Assessment (PGA) to assess the percentage improvement of lesions using VISIA images , with a scale of -1 to 5 |
2 week |
|
Secondary |
rating the improvement of facial solar lentigines on the facial image taken by VISIA, skin analysis imaging system |
use Physician Global Assessment (PGA) to assess the percentage improvement of lesions using VISIA images , with a scale of -1 to 5 |
4 week |
|
Secondary |
assessing the value change of skin tone index L*a*b* of facial solar lentigines from baseline |
determine the facial spot color index L*a*b* by color meter (CR-400 Chroma Meter) at baseline and 2nd week |
2 week |
|
Secondary |
assessing the value change of skin tone index L*a*b* of facial solar lentigines from baseline |
determine the facial spot color index L*a*b* by color meter (CR-400 Chroma Meter) at baseline and 4th week |
4 week |
|
Secondary |
assessing the percentage change of skin tone index L*a*b* of facial solar lentigines from baseline |
determine the facial spot color index L*a*b* by color meter (CR-400 Chroma Meter) at baseline and 2nd week |
2 week |
|
Secondary |
assessing the percentage change of skin tone index L*a*b* of facial solar lentigines from baseline |
determine the facial spot color index L*a*b* by color meter (CR-400 Chroma Meter) at baseline and 4th week |
4 week |
|
Secondary |
assessing the patches safety on the skin by adverse reactions |
assess by the incidence of adverse reactions |
through study completion, an average of 4 weeks |
|
Secondary |
assessing the patches safety on the skin by subject diary |
assess by subject diary |
through study completion, an average of 4 weeks |
|
Secondary |
assessing the patches safety on the skin by skin response |
assess by skin response score sheets |
through study completion, an average of 4 weeks |
|
Secondary |
assessing the subjects' compliance with the trial by subjects' return visits |
assess subjects' compliance by the number of the subjects' return visits |
through study completion, an average of 4 weeks |
|
Secondary |
assessing the subjects' compliance with the trial by subject diary |
assess subjects' compliance by subject diary |
through study completion, an average of 4 weeks |
|
Secondary |
assessing the subjects' compliance with the trial by the number of patches packages returned |
assess subjects' compliance by the number of patches packages returned by the subjects |
through study completion, an average of 4 weeks |
|
Secondary |
assessing the subjects' feedback of the patches |
assess the questionnaire completed by the subjects. Items in the questionnaire include satisfaction, patch usability, patch shape, patch size, skin quality after using the patch, issues with product use, etc. |
through study completion, an average of 4 weeks |
|