Nitric Oxide Generating Gel Dressing in Patients With Superficial Partial Thickness Wounds

Overview

This is a study to assess the safety and efficacy of a nitric oxide (NOx) generating dressing on superficial partial thickness (SPT) wounds. Nitric oxide has a range of effects on the body including vasodilation and angiogenesis. It is also a potent antimicrobial. This 160 patient, randomised, controlled clinical study will assess the ability of a simple 2 part, NOx generating dressing to improve healing in SPT burn wounds and SPT skin graft donor site wounds compared to standard of care.

Full Title of Study: “ProNOx 2 – A Clinical Study of Superficial Partial Thickness Wound Treatment With an Oxides of Nitrogen Generating Gel Dressing”

Study Type

  • Study Type: Interventional
  • Study Design
    • Allocation: Randomized
    • Intervention Model: Parallel Assignment
    • Primary Purpose: Treatment
    • Masking: None (Open Label)
  • Study Primary Completion Date: March 2014

Detailed Description

This is a clinical study of a new wound dressing for superficial partial thickness (SPT) wounds. The dressing consists of 2 stable layers that when placed together release Nitric Oxide. In preclinical studies NOx delivery has caused significant vasodilation, angiogenesis and demonstrated potent anti-microbial activity. This is a multi-centre, 160 patient, randomised, controlled study. There are 2 arms to the study. 80 patients will have treatment applied to a SPT burn wound and 80 patients will have treatment applied to a SPT graft donor site wound. The controls will be intra-individual. Each patient will have their wound divided into 2, half of the wound being treated with the NOx dressing, the other half treated with standard of care. The positioning of the dressings will be randomised. The NOx dressing will be changed at least every 2 days and the standard of care changed according to normal clinical practice and patients will be treated until the wound is healed. The study will evaluate: – The size of the wound – Eepithelialisation – Trans-epidermal water loss – Infection status. There will be 3 and 12 month follow up with assessment of scarring.

Interventions

  • Device: NOx dressing
    • The NOx dressing should be changed at least every 2 days.
  • Device: Standard of Care
    • Dressing changed as per normal clinical practice

Arms, Groups and Cohorts

  • Other: SPT Burn Wound
    • Each wound will be divided into 2 with half the wound being treated with the NOx dressing and the other half with standard of care
  • Other: SPT graft donor site
    • Each wound will be divided into 2 with half the wound being treated with the NOx dressing and the other half with standard of care

Clinical Trial Outcome Measures

Primary Measures

  • Average number of days until healing (defined as 95% epithelisation) in SPT wounds treated with conventional Mepitel® dressing vs. investigational nitric oxide generating gel dressing
    • Time Frame: From randomisation and first application of the dressing, patients are assessed every 2 days until 95% epithelialisation occurs

Secondary Measures

  • Assessment of healing by blinded evaluation of photographs
    • Time Frame: Every 2 days from baseline until 95% epithelialisation occurs
  • Cosmetic Outcomes measured using both the Vancouver Scar Scale and the Patient Observer Scar Assessment Scale
    • Time Frame: 3 and 12 months post healing
  • Colonisation of wounds
    • Time Frame: Baseline and every 2 days therafter until 95% epithelialisation occurs
    • Wound swabs will be taken at every patient visit, every 2 days, until 95% epithelialisation occurs.
  • Tolerance and safety of the dressing
    • Time Frame: Baseline and every 2 days thereafter
    • Assessment of reported adverse events

Participating in This Clinical Trial

Inclusion Criteria

  • Patients who have a Superficial Partial Thickness wound (2a) either from a thermal injury or from a skin graft donor site under the care of St. Andrews service, within the recruitment timeline. – Wound area to be treated in study must be less than 5% of total body surface area (TBSA). – Patients aged over 12 months and up to and including 80 years old. – Informed Consent Exclusion Criteria:

  • Any inclusion criteria not met – Unwilling to consent to investigation/ unable to provide consent – Wounds deeper than superficial partial thickness (2b, 3 and 4) – Chemical /Electrical burns – Already having received silver sulfadiazine – Disease that could affect wound healing – Previous participation in the study – Females who are pregnant or breast-feeding. – Relative, spouse or employee of the investigational site – Known multiple allergic disorders – Skin disorders – Facial burns – Patients who have taken part in any investigational studies within the last 30 days prior to participation.

Gender Eligibility: All

Minimum Age: 1 Year

Maximum Age: N/A

Are Healthy Volunteers Accepted: No

Investigator Details

  • Lead Sponsor
    • Edixomed Ltd
  • Provider of Information About this Clinical Study
    • Sponsor
  • Overall Official(s)
    • Joanne Stewart, PhD, Principal Investigator, Queen Mary University London

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