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Completed

NCT Number: NCT05690685

PMS Study of Silver I Alginate Non-Woven Dressing (Hydro-Alginate)

Post market surveillance study to confirm the ongoing safety and performance of Silver I Alginate Non-Woven Dressing (Hydro-Alginate) in chronic and acute wounds.

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Key information

Age range

18 year and older

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

Royal United Hospital Bath, Bath, United Kingdom

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About this study

Design: The design of the study is an open-label, multicentre, single arm clinical trial in subjects with moderate to heavily exuding chronic and acute wounds consisting of Pressure ulcers and Donor sites.

The rationale for the chosen study design and objectives is based on the requirement for further confirmation of the clinical effectiveness and safety of the dressing in routine clinical use, in terms of management of wound, management of bioburden, maintaining a moist wound environment, and exudate management.

This post market study has been designed to be an in-market clinical evaluation. Using the assessment scale of "satisfactory" or "not satisfactory" will indicate whether the device is acceptable to the Healthcare Professional and therefore demonstrate the acceptability of the Silver I Alginate Non-Woven dressing (Hydro-Alginate).

It is intended to recruit 25-30 subjects per wound type in support of providing evidence of effectiveness and safety of wound dressings. The prior CE-marking evaluation for this device lacked information pertaining to the use of the device in pressure ulcers or donor site wounds. Therefore, this study will address this gap. This study analysis will be descriptive in nature, for each wound type and will not be based on any stand-alone statistical hypotheses.

The study endpoints have been chosen because they will demonstrate the safety and effectiveness of the dressing in routine clinical use.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Males or females, age 18 years or above. (Females must not be pregnant and if of reproductive age should provide a negative pregnancy test at screening).
  • Patients who are able to understand and give informed consent to take part in the study.
  • Have one or more of the following: Pressure ulcer or Donor site wounds that are infected, or are at high risk of infection (in the opinion of the Investigator), that are moderate to heavy levels of exudate.
  • Pressure ulcers that are moderate to high exudate, typically Category 3 and 4.
  • Only one primary wound may be treated per patient for the study.

Exclusion criteria

  • Patients who are known to be non-compliant with medical treatment,
  • Patients who are known to be sensitive to any of the device components
  • Subject is pregnant or actively breastfeeding;
  • Subject has a known sensitivity to Silver;
  • Life expectancy of <6 months;
  • Subject has any significant or unstable medical or psychiatric condition that, in the opinion of the Investigator, would interfere with his/her ability to participate in the study;
  • Subject is currently enrolled in another clinical study, or has completed a clinical study less than 30 days prior to enrolment.

Treatment and study plan

Silver I Alginate Non-Woven Dressing (Hydro-Alginate)

Device

Assigned interventions Subjects will undergo treatment of their chronic and acute wounds as indicated in instructions for use with Silver I Non-Woven dressings.

Subjects will be evaluated as follows:

Full Patient and wound assessment, Informed consent. Wound Assessment, application of dressings, (At each scheduled dressing change.) Wound Assessment, removal of dressings, (At each scheduled dressing change.) The patients will be evaluated at each dressing change up-to six-week follow-up period.

Other names: Silvercel (brand name)

Primary outcomes

  1. Evaluation of Wound progression following 6 weeks (Efficacy)

    Time frame: 6 weeks

    wound progression from baseline to end of follow-up.

    In order to be considered successful in wound progression, at least one of the following must occur in the change from baseline to the end of follow-up:

    • Increase in % of wound granulation tissue
    • Decrease in wound size (volume, area, or depth) or wound closure
    • Decrease in devitalized tissue

    In addition to the following:

    • Reduction or no signs or symptoms of clinical infection.
  2. Subject incidence of any treatment-related adverse events during follow-up period - 6 weeks (Safety)

    Time frame: 6 weeks

    The primary safety analysis will be the calculation of the subject incidence of any treatment-related adverse events between treatment initiation and the end of follow-up for each patient.

Secondary outcomes

  1. Pain assessment

    Time frame: 6 weeks

    Change in patient pain (using Visual Analog Score for pain-VAS Score) from baseline to end of follow-up.

    Min-Max VAS score: 0=no pain to 10=worst pain imaginable. Higher pain VAS score would mean a worse outcome.

  2. Change in wound odour

    Time frame: 6 weeks

    Change in wound odour (using Verbal Numeric Scale- VNS score), from baseline to end of follow-up.

    Min-Max score: 0= no odour to 4= Smell is present but is perceived as extremely offensive.

    A higher odour VNS score would mean a worse outcome.

  3. Ease of use assessment using Likert-type scale

    Time frame: 6 weeks

    Clinician satisfaction with the device (conformability and ease of use) will be assessed using a Likert-type scale.

    Min-Max score: 1=Very easy to 5=Very difficult. A higher score would mean a worse outcome.

  4. Change in wound granulation tissue

    Time frame: 6 weeks

    Change in % of wound granulation tissue.

  5. Percent change in wound size

    Time frame: 6 weeks

    Percent change in wound size (% change in: volume, area or depth).

  6. Percent change in devitalized tissue

    Time frame: 6 weeks

    Percent change in devitalized tissue

  7. Rates of individual components of wound progression (primary efficacy endpoint)

    Time frame: 6 weeks

    Rates of individual components of the primary efficacy endpoint, including:

    • Increase in % of wound granulation tissue
    • Decrease in wound size (volume, area, or depth) or wound closure
    • Decrease in devitalized tissue
    • Reduction or no signs or symptoms of clinical infection.

    For each of these components, the frequency and proportion of successes will be calculated for each wound type.

  8. The number of components of the primary efficacy endpoint experienced by each subject

    Time frame: 6 weeks

    Descriptive statistics of the number of components of the primary efficacy endpoint experienced by each subject, including:

    • Increase in % of wound granulation tissue
    • Decrease in wound size (volume, area, or depth) or would closure
    • Decrease in devitalized tissue
    • Reduction or no signs or symptoms of clinical infection

    For each subject, the number of successful primary efficacy endpoint components will be calculated (range: 0 - 4). Subjects missing data on any of the four primary efficacy endpoint components will be excluded from this secondary endpoint analysis. Descriptive statistics will be provided for the number of successful primary efficacy endpoint components for each wound type, treating the number of components as a continuous variable.

Sponsors and collaborators

Lead sponsor

Advanced Medical Solutions Ltd.

Industry

Collaborators

  • NAMSA

Registry information

Official study title

Post-market Surveillance Study to Confirm the Safety and Performance of Silver I Alginate Non-Woven Dressing (Hydro-Alginate) in Chronic and Acute Wounds

Important dates

Study start
2023
Primary completion
2025
Study completion
2025
First posted
Jan 19, 2023
Registry last updated
Nov 25, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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