NCT05855499

Brief Summary

Every year, 5 million people throughout Germany suffer from extensive, often chronic wounds. Cold plasma is an innovative therapeutic approach in the treatment of these persistent tissue defects. However, previous therapy options with cold plasma are very time-consuming, especially with increasing wound area, and are also strongly dependent on the skill of the practitioner. This study investigates the effectiveness of a system for reproducible application of cold plasma on larger areas and observes the effect of a 4-week additional plasma treatment on wound healing of large chronic wounds. The patient-related benefit of such an additional treatment will also be evaluated. Both study arms will receive guideline-based wound therapy, which is the current gold standard.

Trial Health

75
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
8mo left

Started Oct 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

8 active sites

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress88%
Oct 2021Dec 2026

Study Start

First participant enrolled

October 1, 2021

Completed
1.6 years until next milestone

First Submitted

Initial submission to the registry

April 24, 2023

Completed
17 days until next milestone

First Posted

Study publicly available on registry

May 11, 2023

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

December 31, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

December 31, 2026

Last Updated

March 18, 2026

Status Verified

March 1, 2026

Enrollment Period

5.3 years

First QC Date

April 24, 2023

Last Update Submit

March 16, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Reduction in area of chronic wounds

    The clinical trial is based on the following primary null hypothesis (H0): There is no significant difference in terms of reduction in area of chronic wounds between standard guideline-based wound therapy with and without initial 4-week plasma treatment. The associated alternative hypothesis (HA) is: There is a significant difference in terms of reduction in area of chronic wounds between standard guideline-based wound therapy with and without initial 4 weeks of plasma treatment

    3 visits weekly for 4 weeks, follow-up at at 12 and 20 weeks

Secondary Outcomes (4)

  • Wound closures

    during the 4-week active treatment phase, after 3 and after 6 months

  • Change in wound pain

    during the 6-month observation period

  • Change in quality of life

    during the 6-month observation period

  • Amount of germs/bacteria in the wound bed

    during the 4-week active treatment phase

Study Arms (2)

Plasma (CAPT)

EXPERIMENTAL

Conventional wound treatment according to S3 guideline, 3 visits weekly for 4 weeks, additive plasma treatment during each visit.

Device: CPtcube, CPTpatch

Standard wound treatment (SWT)

NO INTERVENTION

conventional wound treatment according to S3 guideline, 3 visits weekly for 4 weeks

Interventions

This study investigates the effectiveness of a system for reproducible application of cold plasma on larger areas and observes the effect of a 4-week additional plasma treatment on wound healing of large chronic wounds.

Plasma (CAPT)

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Patient Criteria:
  • Patient must be at least 18 years old (legal age) and legally competent
  • The patient has at least one diagnosed chronic (existing for at least 8 weeks), non-healing wound due to a UCA or UCV on the lower leg, below the knee
  • There is a signed consent form dated by the patient's own hand
  • Wound Criteria:

You may not qualify if:

  • The initial wound area is 5 cm²-100 cm2
  • The wound can be enclosed completely by the plasma applicator (10 cm x 10 cm)
  • The wound is not undermined
  • The wound is located on the lower leg
  • Patient Criteria:
  • The patient is younger than 18 years and/or lacks legal capacity
  • The patient has already participated in this study
  • The patient is already participating in another interventional study
  • Pregnant or breastfeeding patients
  • The patient has an implanted pacemaker, defibrillator or other active implants
  • The patient has a light/sun allergy
  • The patient has a silicone allergy
  • The patient has had a thrombosis within the last 3 months
  • The patient has a systemic and/or chronic infectious disease (e.g., HIV, tuberculosis, hepatitis)
  • The patient has a tumour disease
  • +15 more criteria

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (8)

Universitäts-Hautklinik Tübingen

Tübingen, Baden-Wurttemberg, 72076, Germany

Location

Zentrum Rothenaicher

München, Bavaria, 81927, Germany

Location

Zentrum Regensburg

Regensburg, Bavaria, 93047, Germany

Location

Universitätsklinikum Hamburg-Eppendorf

Hamburg, Hamburg, 20246, Germany

Location

Katholisches Klinikum Bochum

Bochum, North Rhine-Westphalia, 44805, Germany

Location

Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden

Dresden, Saxony, 01307, Germany

Location

Charité Universitätsmedizin Berlin

Berlin, State of Berlin, 10117, Germany

Location

Verbund Thüringen-Kliniken "Georgius Agricola"

Saalfeld, Thuringia, 07318, Germany

Location

Study Officials

  • Robert Banaschik, Dr.

    Coldplasmatech

    STUDY DIRECTOR
  • Isabel Zänker, Dr.

    Thüringen-Kliniken

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
INDUSTRY
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 24, 2023

First Posted

May 11, 2023

Study Start

October 1, 2021

Primary Completion (Estimated)

December 31, 2026

Study Completion (Estimated)

December 31, 2026

Last Updated

March 18, 2026

Record last verified: 2026-03

Locations