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临床试验/NCT01249469
NCT01249469Unknown不适用

Evaluate the Lightening Effect of the Whitening Cosmetic Product BEX-2011 on Solar Lentigines by Harmonic Generation Microscopy

National Taiwan University Hospital2 个研究点 分布在 1 个国家目标入组 40 人开始时间: 2010年6月最近更新:
适应症

试验速览

阶段
不适用
入组人数
40
试验地点
2
主要终点
the mean reduction of darkness from baseline in target area after treatment

研究概览

简要总结

Background: Solar lentigines are a common dermatologic condition that manifest as circumscribed single or multiple brownish macules usually located on sun-exposed skin such as face, hands or forearms. An effective, safe, daily-use, homecare whitening product may alleviate the cosmetic concerns for the general population. The efficacy and safety of the previous generation BEX-2009 (Blanc Expert Spot Eraser, L'Oreal, France), a whitening cosmetic product containing ellagic acid, salicylic acid, licorice root extract, etc., has been established in Caucasian and Asian populations with facial solar lentigines.

Objective: The purpose of this placebo-controlled, single-center study is 1) to evaluate the efficacy of the new generation whitening cosmetic product BEX-2011 (Ultimate Whitening Spot Eraser, L'Oreal, France) in the improvement of solar lentigines on the dorsum of hands or forearms, and 2) to evaluate the efficacy of BEX-2011 by harmonic generation microscopy to obtain information of the epidermal melanin continuum, compared to other standard tools for melanin measurement.

详细描述

Method: 40 subjects, who are non-gravid women between 45 to 65 years old and need to have ≥10 solar lentigines on the forearms/hands, will be recruited. One to three flat lesions which are larger than 4 mm and with the same pigmentation intensity on the left or right forearm/hand, respectively, are designated the target lesions. However, all lesions on the randomly selected side will be treated with BEX-2011 twice a day. The opposite site will be treated with vehicle and is served as the control. Evaluation will be performed at week 0, 4 and 8. At each visit, treated and control spots as well as their surrounding spotless skin will be evaluated using Pigmentation Index Scores, VISIA-CR, SIAscope, Dermascore, and harmonic generation microscopy. Evaluation of the efficacy of whitening will be compared to the baseline and to the control area between week 0 and week 8. Safety will be assessed using clinical monitoring and adverse event reporting.

研究设计

研究类型
Interventional
分配方式
Randomized
干预模型
Parallel
主要目的
Treatment
盲法
Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)

入排标准

年龄范围
40 Years 至 65 Years(Adult, Older Adult)
性别
Female
接受健康志愿者

入选标准

  • 40-65 years old Asian women (skin types III to IV)
  • With ≥10 solar lentigines on the forearms or dorsum of hands
  • With at least one to three lesions ≥4 mm on the left or right forearm/ dorsum of hand, respectively, which are flat and are at the same pigmentation degree according to the color chart.

排除标准

  • Having major treatment, including topical hydroquinone or tretinoin, cryotherapy, electrosurgery, trichloroacetic acid application, laser or intense pulsed light, in the 3 months before the beginning of the study
  • Past history of allergy to whitening cosmetic products
  • Past history of atopic dermatitis
  • Habit of going to the tanning salon or frequent sun exposure longer than 4 hours per day

结局指标

主要结局

the mean reduction of darkness from baseline in target area after treatment

时间窗: 8 weeks

次要结局

  • the difference of darkness between the treated spots and the control spots(8 weeks)

研究者

申办方类型
Other

研究点 (2)

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