Monitoring of Venous Ulcers Using a Bioimpedance Measurement Based Method and System

Last updated: March 16, 2026
Sponsor: CutoSense Oy
Overall Status: Active - Recruiting

Phase

N/A

Condition

Venous Leg Ulcers

Stasis Dermatitis

Treatment

WoundWatch® wound monitoring system

Clinical Study ID

NCT05805137
WW001
R23094L (WW001 TAYS)
  • Ages > 18
  • All Genders

Study Summary

The purpose of this study is to investigate the functionality of a new type of wound monitoring method and measurement system for monitoring healing of venous ulcers. The system is consisted of a wound dressing with electrodes (eDressing), a bioimpedance measurement device and a mobile phone application.

Eligibility Criteria

Inclusion

Inclusion Criteria:

  • Age at least 18 years

  • The subject has a chronic lower extremity ulcer with a primary etiology of venousinsufficiency. The previous venous procedure is not an obstacle to the study

  • Compression therapy can be implemented

  • The wound is not wider than 5 cm and the electrode dressing can be placed on thewound as intended. The wound should be located above the ankle, on the skin areawhere the electrode dressing can be placed properly.

  • The wound is not deep with steep edges or cavity-like

  • The wound is not highly excreting

  • The wound can be expected to heal within two months (area reduced ≥ 90% frombaseline)

  • The subject gives consent to the study and commits to following the instructions ofthe medical staff

Exclusion

Exclusion Criteria:

  • Clinical wound infection at the time of the study

  • The subject has an intravenous (in Tampere: A venous operation) procedure within 2months

  • Significant arterial circulatory disorder or adherence problem that preventscompression therapy (in Tampere: Contraindication for compression therapy, e.g.significant arterial circulatory disorder or severe heart failure)

  • Subject movement 2-3 times a week during the study to the study site is difficult toarrange (in Tampere: Subject not able to commit to study visits 2-3 times a week.)

  • Diagnosed epoxy resin allergy

  • Any other reasons of potential study subject non-compliance by the opinion of theinvestigator

Additional local exclusion criteria in Tampere site:

  • Special groups, such as pregnant women/patients trying to conceive during the studyor patients with reduced autonomy

  • Subject with any implantable electrical device. Such as pacemaker or implanteddefibrillator. Patient has other electrically conductive implanted material in legs.Such as a metallic prostheses.

Study Design

Total Participants: 20
Treatment Group(s): 1
Primary Treatment: WoundWatch® wound monitoring system
Phase:
Study Start date:
April 20, 2023
Estimated Completion Date:
December 31, 2026

Study Description

The technical principle of the monitoring method is based on the quasimonopolar bioimpedance measurement. The measurement system consists of a bioimpedance measuring device, a wound dressing with electrodes (eDressing) and a mobile application for use with a mobile phone.

The electrode dressing is placed on top of a wound, in contact with the wound tissue. The other necessary dressing layers (such as absorbent dressings and compression bandages) are placed over the electrode dressing. The electrode dressing is kept on the wound for maximum of seven consecutive days. The electrode dressing can be removed and replaced when needed due to medical reasons. Other dressings can be changed considered necessary.

During a study subject visit, the bioimpedance measurement is made using the device, the uppermost dressings are opened carefully and it is ensured that the wound condition is as expected. Upon the replacement of the electrode dressing, the wound is photographed and documented. The wound area is measured, and the findings are recorded.

A maximum of 20 subjects with venous ulcers will be recruited for the study in two study sites (Gdansk, Poland and Tampere, Finland).

Adult subjects (≥18 years) with venous ulcer who are applicable for compression therapy treatment, whose ulcer is not wider than 5 cm and does not excrete excessively can be recruited to the study. Previous surgical venous procedure is not an exclusion criterion for enrollment, but surgical procedure can not be performed during the study.

A subject shall visit the clinic 2-3 times a week, according to the doctor's or study nurse's assessment. Wound healing is monitored until the wound re-epithelized (>90% of initial wound surface area) or maximum two months. Thus, there will be a maximum of 24 study visits per subject.

In addition to scientific objectives, the results of this study are also used as part of clinical evidence when submitting the technical documentation to Notified Body for assessment of the conformity of the device before being placed on the market.

Connect with a study center

  • TAYS Haavakeskuksen poliklinikka

    Tampere, 33520
    Finland

    Active - Recruiting

  • University Clinical Centre, Gdańsk

    Gdansk,
    Poland

    Active - Recruiting

  • University Clinical Centre, Gdańsk

    Gdańsk,
    Poland

    Site Not Available

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