Dermatologically Tested - Patch Tests - to Assess the Irritancy/Allergic Sensitivity of the Natural Personal-care Products Developed by "Mother's Choice".
试验速览
- 阶段
- 不适用
- 发起方
- 入组人数
- 100
- 试验地点
- 2
- 主要终点
- Number of participants with positive reactions, number of positive reactions.
研究概览
简要总结
The purpose of the study is to determine if any of Mother's Choice' all-natural personal-care products cause either irritation or allergic reaction when applied to both normal or sensitive skin.
Each product will be tested on the skin using patch tests.
详细描述
Volunteers will be seen on Day #0 and the study purpose will be explained. Each volunteer will be interviewed to determine if he/she has any exclusion criteria.
If there is no contraindication, and agreement is achieved,consent forms will be signed.
Volunteers will be examined by a lactic acid test to determine if he/she has normal or sensitive skin. In this test, a Finn's cell (plastic cell, size 1*1 cm) with lactic acid (50 microliter, 10%w/v) will be placed on the volunteer's cheek for ten minutes. The volunteer will be defined as "sensitive" or "normal" according to the degree of discomfort they report.
Patch-tests will be performed in the standard method. The materials to be tested will be placed in Finn's cells and attached to the participants healthy skin's back by a plaster (Micropore).The chambers will be left on the skin for 48 hours. The test will be read by a specialist one hour after chambers' removal and 48 hours afterwards. Any erythema,edema, blisters, pustules or erosions on the skin in the patch area will be considered a positive response, and will be evaluated by clinical tools as being of the irritant or the allergic type. in case of uncertainty we may use a confocal microscope for in vivo diagnosis.
Ingredients: appropriate concentrations and solvents of the test materials will be prepared according to accepted standards (refer to: Anton C. De Groot: Patch Testing, 3ed Edition, Wapserveen, The Netherlands, 2009).Leave on products will be tested 'as is'. Rinse off products will be diluted to 5% and 0.5%.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Screening
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 65 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Healthy adults
排除标准
- •Pregnant subjects
- •Subjects with an allergy or a skin disease which interferes with the proper results of the tests.
- •Subjects who are taking medications which can interfere with the proper results of the tests. For example: systemic corticosteroids, topical steroids applied to the test area.
- •Subjects with sun or phototherapy induced tanning at the test area.
- •Subject who had been participating in allergy tests within eight weeks prior to the present tests.
结局指标
主要结局
Number of participants with positive reactions, number of positive reactions.
时间窗: One week
Erythema, edema, blisters, pustules or erosions on the skin in the patch area will be considered a positive response. If the skin is normal after the patch removal, it means that contact with the material do not cause allergy or irritation.
次要结局
- Number of irritant versus allergic reactions, as determined by confocal microscopy.(On the spot)