Evaluating foam sclerotherapy for venous leg ulcers

Finnish Venous Ulcer Study

Not applicable Interventional Oulu University Hospital · NCT04737941

This study tests if getting foam sclerotherapy right away can help people with venous leg ulcers heal faster compared to the usual treatment.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment248 (estimated)
Ages18 Years and up
SexAll
SponsorOulu University Hospital Academic / other
Locations5 sites (Helsinki and 4 other locations)
Trial IDNCT04737941 on ClinicalTrials.gov

What this trial studies

This multicenter randomized controlled trial assesses the effectiveness of first-visit foam sclerotherapy in patients with venous leg ulcers. Participants are randomly assigned to receive either immediate foam sclerotherapy or the current standard treatment. Both groups will also undergo endothermal ablation and/or foam sclerotherapy in subsequent visits to address underlying venous insufficiency. The primary outcome measured is the time taken for the ulcers to heal over a one-year follow-up period.

Who should consider this trial

Good fit: Ideal candidates are patients aged one month to one year with venous ulcers and verified superficial venous insufficiency.

Not a fit: Patients with leg ulcers of non-venous origin or those requiring surgical intervention will not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce the healing time for patients with venous leg ulcers.

How similar studies have performed: Previous studies have shown promising results with foam sclerotherapy for venous ulcers, suggesting this approach may be effective.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patient informed consent
* Venous ulcer, aged from one month to one year
* Duplex ultrasonography verified (vein reflux greater than \>0.5 second) superficial venous insufficiency
* Sufficient arterial circulation (at least on criterion met: Palpable distal pulses / ankle-brachial index \> 0,8 / Toe pressure \>60mmhg)

Exclusion Criteria:

* Leg ulcers other than venous etiology
* Ulcers requiring operation theater revision
* Patent foramen ovale
* Several times recurrent (over 3 recurrences) venous ulcer
* Body Mass Index over 40
* Pregnancy

Where this trial is running

Helsinki and 4 other locations

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Venous Leg UlcerFoam SclerotherapyEndothermal AblationSub-ulcer Foam Sclerotherapy
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.