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Trial on the Efficacy of Prontosan Wound Irrigation Solution and Prontosan Wound Gel

2014-07-24 14:00:50 | BioPortfolio

Summary

The primary objective of the study is to evaluate the efficacy of Prontosan® Wound Irrigation Solution and Prontosan® Wound Gel in the treatment of hard-to heal venous leg ulcers compared to control saline irrigation solution and inactive gel by showing a reduction in size over a 12 week period.

Description

SUMMARY

Sponsor: B. BRAUN Medical AG

Trade name: Prontosan® Wound Irrigation Solution Prontosan® Wound Gel

Active substance: Polihexanide (0.1%) Betaine (0.1%)

Study Duration (per patient):

14 weeks, including the 2 week run in period

Primary Objective:

To evaluate the efficacy of the combination of Prontosan® Wound Irrigation Solution and Prontosan® Wound Gel in the reduction of wound size of hard-to-heal venous leg ulcers compared to control saline irrigation solution and inactive gel.

Secondary Objectives:

To assess the change in bio-burden (assessment of organisms present) and to determine local tolerance as well as reduction in pain and smell and to monitor exudate control.

Methodology:

A pilot randomised, double-blind, controlled clinical trial at a single centre

Planned number of patients:

A sample size of N= 15 evaluable patients was estimated for each treatment group (group "A" and "B"). Adding a dropout rate of approx. 25% results in a total number of patients for both treatment groups of N=38.

Study Visits:

Visit 0 (-2 weeks) - Screening Visit 1 ( Week 0) - Treatment and assessment visit Visit 2 (Week 1, day 7 +/- 1 day) - Treatment and assessment visit Visit 3 (Week 2, day14 +/- 1 day) - Treatment and assessment visit Visit 4 (Week 4, day 28 +/- 2 days) - Treatment and assessment visit Visit 5 (Week 8, day 56 +/- 2 days) - Treatment and assessment visit Visit 6 (Week 12, day 84 +/- 2 days) - End of study following 12 weeks of treatment or at healing whichever is soonest

The number of additional visits will be recorded in the CRF.

Treatment efficacy assessment:

Clinical signs and symptoms will be compared between the two randomised groups with microbiological analysis and, computer planimetry assessments of ulcer size, using Visitrak™ (Smith & Nephew), and digital photography at entry to the study, at each planned study visit and at healing or 12 weeks, whichever is soonest.

Tolerance assessment:

The tolerability of study treatment will be evaluation based on the intensity and the course of adverse events (undesired concomitant effects, both subjectively perceived symptoms and objectively detected signs of disease). Tolerance assessments will take place from visit 2 onwards

Assessment methods:

1. Assessment of clinical signs and symptoms, in particular related to development of infection:

- reduction of slough and necrotic tissue

- control of exudate

- presence of granulation tissue

- reduction of inflammatory signs (surrounding skin)

- pain

2. Ulcer computerised planimetry using Visitrak™

3. Microbiological analysis for bioburden (the bioburden within an ulcer relates to a microbiological qualitative and quantitative assessment of organisms present) assessed by wound swab or biopsy

4. Serial photography with blinded assessment of progress using linear analogue scale

Study Design

Allocation: Randomized, Control: Placebo Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment

Conditions

Venous Leg Uler

Intervention

Prontosan Wound Irrigation Solution and Prontosan Wound Gel, Normal Saline and Placebo Gel

Location

Cardiff University, Department of Wound Healing
Cardiff
Wales
United Kingdom
CF14 4XN

Status

Recruiting

Source

B. Braun Ltd. Centre of Excellence Infection Control

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-24T14:00:50-0400

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Medical and Biotech [MESH] Definitions

The application of a vacuum across the surface of a wound through a foam dressing cut to fit the wound. This removes wound exudates, reduces build-up of inflammatory mediators, and increases the flow of nutrients to the wound thus promoting healing.

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