Effectiveness of 3M Cavilon Advanced Skin Protectant in the Treatment of Moisture-associated Skin Damage in Hospitals

Problem statement:

Partial-thickness wounds (erosion/denudation of the epithelial and dermal layers of the skin) can occur due to prolonged exposure of moisture and irritants. Various sources of moisture can cause these superficial wounds called moisture-associated skin damage (MASD) which include wound exudate, bodily fluids from incontinence and effluent from stomas and fistulas. MASD can present as inflammation with or without erosion and even secondary infection. Partial-thickness denudation can be extremely painful and detrimental to the patient. Traditionally a wide array of treatment options is used in clinical practice, yet there is a lack of robust studies comparing newer technologies with current practices. 3M™ Cavilon™ Advanced Skin Protectant, launched in 2017, is a newer cyanoacrylate-based medical device indicated for treatment of partial-thickness skin loss and is the only cyanoacrylate-based barrier product available on the Belgian market.

Objectives: The aim of this study is to evaluate the effectiveness of 3M™ Cavilon™ Advanced Skin Protectant in the treatment of partial-thickness wounds caused by moisture (MASD) compared to usual wound care treatment.

Methodology:

RESEARCH DESIGN: A randomized controlled multicentre clinical trial.

DATA COLLECTION:

Procedure: Demographics and Participant Characteristics: Patient demographics will be recorded in REDCap eCRFs on study schedule Day 01: gender, age, height, weight, co-morbidities.

Randomization/Blinding and Participant Numbering: The patients will be allocated 1:1 by block randomization, using the REDCap Randomization Module, to either Cavilon™ Advanced Skin Protectant or local hospital partial-thickness wound (MASD) treatment protocol, yielding one study group. Due to the obvious differences between the comparative hospital wound care treatment products and the study device, the study nurses cannot be blinded. A blinded assessor will assess the time to healing and other healing outcomes centrally based on the photographs of the study area.

Study area: Defined as all partial-thickness, skin damaged areas on the body - due to exposure to (a) incontinence body fluids, (b) wound exudate, (c) stomal- or fistula effluent or digestive secretions.

Study duration: 21 days or until complete healing of the moisture associated skin damage (complete epithelialization).

Hypothesis: 3M™ Cavilon™ Advanced Skin Protectant is more effective in the treatment of partial-thickness wounds caused by moisture (moisture-associated skin damage) compared to usual wound care treatment in hospitals.

Skin (MASD) assessment: Daily skin assessment of the study area is to be conducted by the study nurses. Relevant wound and patient information will be recorded. This information includes incontinence status, presence of a urinary catheter or faecal management system, number of absorbent pad or diaper changes, number of cleansing procedures, type of stoma, number of applications regarding Cavilon Advanced Skin Protectant or usual hospital wound treatment protocol. Daily photographs will be taken with each daily skin assessment after removal of all visual product to ensure blinded skin assessment by the central reviewer. Digital planimetry software (PictZar® version 7.6.1 ss) will be the main mode of assessing wound healing. The central reader will perform a blinded skin assessment based on the provided photographic documentation of the study area.

Pain assessment: The Numeric Rating Scale (NRS) or Crital care Pain Observation Tool (CPOT) will be used to assess pain daily. Treatment-related pain (pain experienced during treatment (cleansing and product application)) and wound related pain (pain perception specifically caused by the MASD lesion) will be assessed.

Nursing time assessment: Time per cleansing and time per treatment application will be done on days 4 and 7 using a stopwatch.

DATA ANALYSIS:

All quantitative data will be summarized with descriptive statistics.

Inferential analysis: Cox proportional hazards will be used to calculate the primary efficacy variable. Linear mixed logistic regressions and linear mixed models will be used to calculate the secondary objectives.

Exploratory analysis: Cox proportional hazards will be used to calculate the primary efficacy variable. Linear mixed logistic regressions and linear mixed models will be used to calculate the secondary objectives.

Health economic evaluation: A cost-effectiveness analysis will be performed with an institutional perspective in a Belgian context. Total cost will be calculated by the sum of the total product cost and the total cost of nursing time. Costs will be averaged within each group and compared using a two-signed t-test at an alpha level of 5%. A cost-effectiveness analysis will be performed by calculating the ICER. The ICER will be expressed in euros per wound healed per patient.

• Proportion of participants with complete epithelialization [Time frame: Day 07, Day 14, Day 21]
• Mean change in treatment related pain [Time frame: Day 01 - Day 21]
• Mean change in wound pain [Time frame: Day 01, Day 02, Day 04, Day 07]
• Change in maceration surface area [Time frame: Day 07, Day 14, Day 21]
• Total treatment cost [Time frame: Day 04, Day 07]