Investigation of the Effect of Lipikar Baume AP+M on Skin Barrier, Microbiome and AKASI of Participants With Actinic Keratoses and Field Cancerization of the Forearms and Hands
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 入组人数
- 20
- 试验地点
- 2
- 主要终点
- Transepidermal water loss measured by Tewameter®
研究概览
简要总结
Application of Lipikar Baume AP+M at least twice daily for 4 weeks on one of the two arms according to a randomization scheme The purpose of this study is to observe the skin barrier function, transepidermal water loss and microbial changes in study participants with actinic field damage of both arms.
It's a randomized, evaluator blinded, intra-individual controlled study conducted in one center in Germany, in adult subjects having AK (grade I to III) lesions on the forearms and back of hands and meeting specific inclusion/exclusion criteria.
A total of 20 subjects will be enrolled.
The study design consists in 4-week evaluation period, with 2 visits per subject: Screening/Baseline (Day 0, Day 28 (end of Lipikar Baume AP+M application)).
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Supportive Care
- 盲法
- Single (Investigator)
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Male, female, diverse persons (> 18yo) who are capable of giving consent
- •Female patients are eligible if the subject is not a woman of childbearing potential (WOCBP) or if she is postmenopausal (cessation of menstruation >12 months) or surgically sterile (bilateral tubal ligation, bilateral oophorectomy, total hysterectomy)
- •Signed informed consent
- •Diagnosis of at least 4 actinic keratoses of the the forearm and/or back of the hand (each arm)
- •Olsen grade I, II and/or III
- •Subjects with similar severity and number of AKs on each side symmetrically
- •The study participant is in good general condition for his or her age and does not currently have any active diseases that, in the opinion of the investigator, justify exclusion from the study
排除标准
- •Known or documented intolerance to any of the ingredients of Lipikar Baume AP+M
- •Any planned AK treatment during the study
- •Treatment of actinic keratoses in the application area within the past 3 Months (e.g. photodynamic therapy, topical 5-FU, diclofenac, imiquimod, cryotherapy etc.)
- •Suspected invasive squamous cell cancer in the application area
- •Chronic wounds, erosions, pre-existing infected skin or inflammation which, in the opinion of the investigator, are in need of treatment other than the study product
- •Suspected non-compliance
- •Current or within the last 8 weeks given systemic cancer medication or systemic treatment with 5-Fluorouracil
- •Any systemic immunosuppressant given within the 8 weeks prior to the study (e.g. systemic prednisolone, azathioprine etc.)
- •Locally applied retinoids, steroids, or other prescribed externals in the 4 weeks prior to the start of the study that, in the opinion of the study physician, necessitate exclusion
- •Products containing glycolic or alpha-hydroxy acids applied locally in the application area in the last 4 weeks
- •Participation in another clinical trial
- •Participation in a clinical study within the last 30 days
- •Family members or colleagues of the investigator
- •Participant is in a position or has a relationship with the investigator that presents a potential conflict of interest
结局指标
主要结局
Transepidermal water loss measured by Tewameter®
时间窗: Day 28
Transepidermal water loss (in g/m2/h - TEWL) measured by Tewameter® (Courage + Khazaka electronics GmbH, Cologne, Germany). 3 measurements at each arm und lesion will be taken (Actinic keratosis, perilesional and never by actinic keratosis affected skin). The average of the 3 measurements is calculated and day 0 and day 28 are compared.
Skin hydration measured by Corneometrie
时间窗: Day 28
Corneometer® (Courage + Khazaka electronics GmbH, Cologne, Germany) is used to assess skin hydration after 28 days. The Corneometer® measures in arbitrary units from 0 (no water) - 120 (on water). The units are referred to as "Corneometer® units". In total there will be 3 measurements at each point (Actinic keratosis, perilesional, never by actinic keratosis affected skin/healthy). The average of the 3 measurements is calculated and day 0 and day 28 are compared.
S. aureus colonization and S. epidermidis colonization (application area)
时间窗: Day 28
S. aureus colonization and S. epidermidis colonization is assessed after 28 days by skin swabs and qPCR. Quantification is based on fluorescence measurements taken in real time during a PCR cycle. Fluorescence increases in proportion to the amount of PCR product. At the end of a run (consisting of several cycles), quantification is performed in the exponential phase of the PCR using the fluorescence signals obtained. Mean Ct values (cycle threshold) of the study groups are given for qPCR.
Subjects's skin aspect
时间窗: Day 28
The investigator will assess the subject's skin aspect on the following signs or symptoms: scarring, atrophy, induration, redness or change in pigmentation. The Score is between 0 (poor) and 3 (Excellent). The investigator will assess the subjects skin aspect at day 28 for all lesions, that have disappeared. An anverage of the score is calculated for all lesions in each study group.
Aktinic keratosis area and severity index (AKASI)
时间窗: Day 28
The AKASI is a standardized tool for the clinically adequate assessment of larger areas (1). The area, distribution, erythema, and thickening of actinic keratoses are evaluated according to Dirschka et al. and a score is calculated. The score is between 0-18. Average values of study participants of each study group will be compared (day 0, day 28). 1\. Dirschka T, Pellacani G, Micali G, Malvehy J, Stratigos AJ, Casari A, et al. A proposed scoring system for assessing the severity of actinic keratosis on the head: actinic keratosis area and severity index. J Eur Acad Dermatol Venereol. 2017;31(8):1295-302.
次要结局
- modified Treatment Satisfaction Questionnaire for Medication-9 (mTSQM-9)(Day 28)
- Absolute lesion count by application site(Day 28)
- Number of new lesions on application area over the study period by application site(Day 28)
- Compliance (percentage of subjects using topical agents at all intended days, 90% of days or 75% of days)(Day 28)
- Symptom severity score: percentage across individual scores at each visit by application site(Day 28)
- Pictures at all time points(Day 28)
- Olsen Grade evaluation: percentage of lesion with improvement at least 1 grade at D28 by application site(Day 28)