Effect of a Basic Skin Care Product on the Structural Strength of the Skin
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT03625167|
Recruitment Status : Completed
First Posted : August 10, 2018
Last Update Posted : January 23, 2019
|Condition or disease||Intervention/treatment||Phase|
|Healthy Skin||Other: Treatment with petrolatum||Not Applicable|
The process of aging involves numerous structural and functional changes also affecting the skin. The skin fulfills a variety of protective and regulatory functions. Compared to other organs, the skin is constantly exposed to harmful environmental influences. Besides intrinsic factors these external factors may accelerate skin aging. Due to its ageing-related loss of functional capacity the skin becomes susceptible to develop adverse skin conditions and dermatological diseases (e.g. skin dryness, fungal infections). Especially old aged, care depended, and severely ill individuals are at high risk for developing severe skin injuries and wounds (e.g. decubitus, skin tears) with high social and economic impact. Empirical evidence indicates that the reduced adhesion of the dermal-epidermal junction is a major pathophysiological predictor for these types of injuries.
The suction blister model is an artificial and controlled technique for dermal-epidermal separation along the dermo-epidermal junction (DEJ). Empirical evidence suggests that the time of the dermal-epidermal separation (blistering time) is a measure of the dermo-epidermal adhesion. It has been proposed that the blistering time might be a clinically relevant parameter reflecting the mechanical integrity/stability of the dermo-epidermal junction.
Clinical practice guidelines recommend the use of topical skin care products to reduce the risk for pressure ulcer and skin tear development. However, the underlying working mechanisms of most basic skin care products are poorly understood. It is known that topically applied skin care products exhibit physical and chemical effects on and in the uppermost skin layers (e.g. the stratum corneum). Despite a few well known active ingredients (e.g. retinoids, vitamin C) exhibiting effects in the dermis, a particular skin protective effect of the vast majority of daily basic skin care applications on these deeper skin layers is unknown. The primary objective of this study is to test, whether the use of a basic skin care formulation increases the mechanical integrity/adhesion of the dermo-epidermal junction.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||12 participants|
|Intervention Model:||Parallel Assignment|
|Masking:||None (Open Label)|
|Official Title:||An Exploratory Randomized Controlled Study to Evaluate the Effect of a Basic Skin Care Product on the Structural Strength of the Dermo-epidermal Junction|
|Actual Study Start Date :||July 31, 2018|
|Actual Primary Completion Date :||December 11, 2018|
|Actual Study Completion Date :||December 31, 2018|
Experimental: Treatment with petrolatum
In each healthy volunteer, one of the two forearms is randomly assigned to the intervention. This forearm is treated with petrolatum for 4 respectively 8 weeks.
Other: Treatment with petrolatum
Petrolatum is applied twice daily to the intervention arm.
No Intervention: Control
The control forearm will remain untreated throughout the study.
- Blistering Time at Day 28±2 [ Time Frame: Day 28±2 ]Duration from the start of suction pressure to the development of a full blister (measured in minutes)
- Blistering Time at Day 56±2 [ Time Frame: Day 56±2 ]Duration from the start of suction pressure to the development of a full blister (measured in minutes)
- Change from Baseline in Epidermal Thickness [ Time Frame: Baseline, Day 14±1, Day 28±2, Day 42±2, Day 56±2, Day 66±3 ]Optical coherence tomography (OCT) will be used to quantitatively measure changes of the epidermal thickness on the volar forearm
- Change from Baseline in Epidermal Hydratation, Measurements Per Skin Area in Percentage (%) at the volar forearm [ Time Frame: Baseline, Day 14±1, Day 28±2, Day 42±2, Day 56±2, Day 66±3 ]Epidermal moisture (measurement depth 0,5mm) was measured using MoistureMeterEpiD (Delfin Technologies Ltd.). The values are expressed in percentage of local tissue water (0 to 100 %).
- Change from Baseline in Stratum Corneum Hydration (SCH), measured in Arbitrary Units (AU) [ Time Frame: Baseline, Day 14±1, Day 28±2, Day 42±2, Day 56±2, Day 66±3 ]Corneometer® CM 825 (Courage & Khazaka electronic GmbH, Cologne, Germany) was used to measure Stratum Corneum Hydration (SCH) in arbitrary units (AU) (range 0-120 AU) on the volar forearm. Lower values represent reduced skin hydration in the upper skin layer.
- Skin surface Temperature [ Time Frame: Day 28±2 ]Measurement of the skin surface temperature on the volar forearm
- Skin surface Temperature [ Time Frame: Day 56±2 ]Measurement of the skin surface temperature on the volar forearm
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03625167
|Clinical Research Center for Hair and Skin Science, Department of Dermatology and Allergy, Charite University Berlin|
|Berlin, Germany, 10117|
|Principal Investigator:||Jan Kottner, PhD||Charite University, Berlin, Germany|