Transcriptomic Study of ER 4017 Topical Application in Elderly Subject
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 10
- 试验地点
- 1
- 主要终点
- Investigate the effectiveness of an anti aging topical treatment by characterizing molecular modifications linked to barrier function recovery following a disruption of stratum corneum.
研究概览
简要总结
The stratum corneum (SC) is the superficial layer of the epidermis situated at the interface between the body and its outside environment. Its strategic position confers it a crucial role of protection against aggressions. After disruption, the kinetic of cutaneous barrier is slower in elderly comparatively to young subjects.
The purpose of this study is to investigate, by characterizing molecular events, the effectiveness of ER4017 (Hydroxypropyltetrahydropyrantriol) to restore kinetic barrier function after acute disruption of stratum corneum in ederly subjects.
10 male volunteers aged from 60 to 75 years are randomized to receive topical application of ER4017 versus placebo on skin inner forearms twice a day during 3 months. After sequential selloptape strips, epidermal samples of treated and control skin are removed under local anesthesia, using a dermatome. Differential gene expression analysis is performed using micro array techniques and quantitative RT-PCR.
treatment, randomized on the location, double blind, placebo control, internal control subject, prospective study.
详细描述
Structural modifications of the superficial dermis during the aging process associated to alterations in the GAG- and PG profile appear to impact the quality of the dermal epidermal junction (DEJ). Previous biological and clinical evaluations of ER4017, a C-glycoside biomimetic of xylose, showed its capacity to stimulate GAG- and PG synthesis and to improve morphogenesis of the whole DEJ.
The aim of the study is to investigate the gene expression in human epidermis treated with ER4017 following sequential sellotapes strips after a 3 months ER4017 topical application. For this purpose, the modulation of gene expression is determined using a cDNA microarray technology. Stratum corneum disruption is performed following 3 months topical application on skin inner forearms. All the experiments are performed in 10 elderly healthy men. Volunteers are clinically and biophysically evaluated at baseline and then at monthly intervals or at 3 months respectively.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Basic Science
- 盲法
- Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor)
入排标准
- 年龄范围
- 60 Years 至 75 Years（Adult, Older Adult）
- 性别
- Male
- 接受健康志愿者
- 是
入选标准
- •Phototype I to III
- •Healthy skin on studied skin areas
- •Subject having freely given his informed written consent.
- •Cooperative subject, aware of the necessity to attend all the scheduled appointments during the study.
- •Negative serology for HIV, hepatitis B and hepatitis C
- •No past or present history of allergy linked either to one of the ingredients of the study cosmetic cream tested or to xylocaïne (anesthesia).
排除标准
- •Cutaneous disease or previous malignant cutaneous lesion on the tested zones.
- •Any treatment able to act on blood coagulation and homeostasis.
研究组 & 干预措施
2
干预措施: ER4017 (hydroxypropyltetrahydropyrantriol) (Drug)
2
干预措施: placebo (Drug)
hydroxypropyltetrahydropyrantriol
干预措施: ER4017 (hydroxypropyltetrahydropyrantriol) (Drug)
结局指标
主要结局
Investigate the effectiveness of an anti aging topical treatment by characterizing molecular modifications linked to barrier function recovery following a disruption of stratum corneum.
时间窗: day 0(visit selection), day 1 (inclusion visit), day 2 to day 84 (treatment period), day 85 (end of the treatment), day 92 and day 99 (follow up period)
次要结局
未报告次要终点