MRB 0.3% Serum Effectiveness on 2 Early Clinical Markers of Photoinduced Cutaneous Aging: Actinic Lentigo and Actinic Keratosis A Single-center Clinical Study in Two Phases: First Phase: Randomized Double-blind Clinical Interventional Study Versus Placebo in Split Face or Split Skull Second Phase: Open-label Observational Clinical Study on the Entire Face or Skull
试验速览
- 阶段
- 不适用
- 入组人数
- 35
- 主要终点
- To evaluate MRB 0.3% serum effectiveness after 6 months of treatment on 2 early clinical markers of photoinduced cutaneous aging: actinic lentigo and actinic keratosis
研究概览
简要总结
The aim of this study is to evaluate effectiveness of a serum containing 0.3% of MRB, a cosmetic active ingredient, against actinic lentigo and actinic keratosis.
详细描述
Skin aging is an extremely complex multifactorial process that disrupts the functions and structure of epidermal and dermal cells and extracellular matrix components and has multiple causes including extrinsic phenomena (UV radiation, exposure to pollution, etc.).
It has important effects on the skin and is particularly apparent on the face. Indeed, sunlight, in particular ultraviolet light, is an important factor that contributes to cutaneous photoaging by inducing the photo-chronic generation of reactive oxygen species (ROS). Although skin has its own antioxidant system against ROS, these antioxidant defenses are not fully effective during sun exposure and weaken over time. Photoaging of the skin is characterized by the development of pigmentary disorders, such as actinic lentigos (AL), as well as benign skin tumors such as actinic keratosis (AK), both of which are target pathologies for this study.
AL usually occur in the elderly. They are usually benign but can cause aesthetic problems. They are commonly seen on the hands but can appear on all areas of the body, especially on sun-exposed areas such as the face, back, arms, feet, shoulders and skull. There are different treatment approaches, including physical therapy such as laser therapy, pulsed light, chemical peeling, bleaching and cryotherapy or topical therapy such as hydroquinone (HQ). Although topical therapies are generally more time consuming compared to physical therapies, patients can control their own treatment and side effects can be decreased.
AK is a very common skin lesion caused by chronic sun damage that typically measure less than 1 cm in diameter. KA is considered a premalignant epithelial skin lesion that may progress to squamous cell carcinoma. For this reason, all KA should be treated and clinical follow-up is recommended. The goals of treatment are: (i) to clinically eradicate obvious and subclinical lesions, (ii) to prevent their progression to EC, and (iii) to reduce the number of relapses and consequently increase the quality of life of patients.
Medical treatment with antioxidant properties/actions that would allow the reduction of damaged cells seems to play a role in both the prevention and treatment of AL and KA (Nashan et al., 2013).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Triple (Participant, Care Provider, Investigator)
入排标准
- 年龄范围
- 40 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Minimum of 5 actinic lentigos and 3 actinic keratoses of grade 1 or 2 on each hemi-face of the face and/or hemi-cranium (in men with baldness)
- •Phototype I to III
- •Patients with free, informed, written consent to participate in the study.
- •Women unable to conceive or women of childbearing potential with a negative urine pregnancy test and using contraception
排除标准
- •Subjects with less than 5 actinic lentigos or less than 3 actinic keratoses of grade 1 or 2 on each hemiface of the face and/or skull (for men with baldness)
- •Phototype IV to VI
- •Immunocompromised subject
- •Subjects with a history of skin carcinoma in the treated areas
- •Subjects using another active treatment for actinic keratoses or lentigos (or having used one in the past 3 months)
- •Subjects unable to understand the information (due to language or psychiatric reasons)
- •Subjects without social insurance
- •Pregnant women
- •Breastfeeding women
- •Women of childbearing age without contraception
- •Subjects under legal protection measures
- •Subjects unable to express their consent
- •Subjects under legal protection
结局指标
主要结局
To evaluate MRB 0.3% serum effectiveness after 6 months of treatment on 2 early clinical markers of photoinduced cutaneous aging: actinic lentigo and actinic keratosis
时间窗: 6 months
The primary endpoint will be the decrease at 6 months from baseline in the overall score determined by the sum of the total number of actinic lentigos and actinic keratoses on each hemi-face, one receiving MRB 0.3% serum and the other a placebo serum. For men with baldness, the evaluation could be performed on each hemi-skull and/or each hemi-face. The counting of the two types of lesions will be done by simple dermatological examination.
次要结局
- To evaluate 0.3% MRB serum effectiveness versus a placebo serum at inclusion, 1, 3 and 6 months of treatment on the evolution of actinic lentigos on each hemi- face and/or skull(1, 3 and 6 months)
- To evaluate in the long term, at 9 and 12 months, on the whole face and/or skull the effect of a MRB 0.3% serum on actinic keratoses(9 and 12 months)
- To evaluate in the long term, at 9 and 12 months, on the whole face and/or skull the effect of a MRB 0.3% serum on the grade of actinic keratoses(9 and 12 months)
- To evaluate at 6 and 12 months from inclusion, the evolution of a lesioned area and an area of normal skin by confocal microscopy on each hemi-face/skull of 10 volunteer subjects.(6 and 12 months)
- To evaluate 0.3% MRB serum effectiveness versus a placebo serum at inclusion, 1, 3 and 6 months of treatment on the evolution actinic keratoses on each hemi-face/skull(1, 3 and 6 months)
- To evaluate in the long term, at 9 and 12 months, on each hemi-face and/or skull the effect of a MRB 0.3% serum on actinic keratoses(9 and 12 months)
- To evaluate at each visit, the tolerance of MRB 0.3% serum versus a placebo serum(1, 3, 6, 9 and 12 months)
- To evaluate 0.3% MRB serum effectiveness versus a placebo serum at inclusion, 1, 3 and 6 months of treatment on the grade of actinic keratoses on each hemi-face/skull(1, 3 and 6 months)
- To evaluate in the long term, at 9 and 12 months, on the whole face and/or skull the effect of a MRB 0.3% serum on actinic lentigos and actinic keratoses(9 and 12 months)
- To evaluate in the long term, at 9 and 12 months, on the whole face and/or skull the effect of a MRB 0.3% serum on actinic lentigos(9 and 12 months)
- To evaluate in the long term, at 9 and 12 months, on each hemi-face and/or skull the effect of a MRB 0.3% serum on actinic lentigos(9 and 12 months)
- To evaluate the satisfaction of the subjects at 6 months (in hemi-face and/or skull), at 9 and 12 months (for the whole face and/or skull and in hemi-face and/or skull) regarding the use of a MRB 0.3 % serum(6, 9 and 12 months)
- To evaluate in the long term, at 9 and 12 months, on each hemi-face and/or skull the effect of a MRB 0.3% serum on actinic lentigos and actinic keratoses(9 and 12 months)
- To evaluate in the long term, at 9 and 12 months, on each hemi-face and/or skull (in men with baldness) the effect of a MRB 0.3% serum on the grade of actinic keratoses(9 and 12 months)
- To evaluate the satisfaction of the subjects regardind galenic at 6 months (in hemi-face and/or skull), at 9 and 12 months (for the whole face and/or skull and in hemi-face and/or skull) regarding the use of the applied serums(6, 9 and 12 months)
- To evaluate the satisfaction of the investigator at 6, 9 and 12 months regarding the products used(6, 9 and 12 months)
- To evaluate subjects' compliance with serums application(1, 3, 6, 9 and 12 months)
研究者
JULIE TISSERAND
PhD, Project manager
NAOS Institute of Life Science