Comparing endovenous treatment with standard therapy for chronic venous disease

Best Endovenous Treatment, Including STenting, Versus Non-endovenous Treatment in Chronic Proximal Deep Venous Disease - the BEST Multi-centre Randomised Controlled Trial

NA · Imperial College London · NCT05622500

This study is testing if a new endovenous treatment can help adults with chronic venous disease feel better compared to the usual therapy they receive.

Quick facts

PhaseNA
Study typeInterventional
Enrollment328 (estimated)
Ages18 Years to 100 Years
SexAll
SponsorImperial College London (other)
Locations1 site (London, UK)
Trial IDNCT05622500 on ClinicalTrials.gov

What this trial studies

This clinical trial investigates the effectiveness of best endovenous therapy, including venoplasty and deep venous stenting, compared to standard therapy for adults suffering from chronic venous disease due to post-thrombotic syndrome or non-thrombotic iliac vein lesions. Participants will be randomly assigned to one of the two treatment groups, and the primary outcome will be assessed using the Venous Clinical Severity Score at six months. The study aims to provide clearer evidence on the benefits of venous stenting in managing chronic venous conditions.

Who should consider this trial

Good fit: Ideal candidates include adults with chronic venous disease classified as CEAP C3 to C6, resulting from proximal deep venous disease.

Not a fit: Patients who are anatomically unsuitable for stenting or have contraindications to anticoagulation may not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment options for patients with chronic venous disease, potentially reducing symptoms and complications.

How similar studies have performed: While the use of venous stenting is increasing, there is limited evidence from previous studies to support its efficacy, making this approach relatively novel.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

1. Adult patients with chronic venous disease secondary to chronic proximal thrombotic or nonthrombotic stenosis or occlusion
2. Disease in iliac and/or caval deep venous system(s)
3. CEAP clinical C3, C4, C5, C6 or symptoms of venous claudication
4. Anatomically suitable for endovenous reconstruction

Exclusion Criteria:

1. Contraindications to stenting (e.g. anatomically unsuitable, contrast allergy)
2. Contraindications to prolonged anticoagulation
3. Existing diagnosis of profound pro-thrombotic states (Beh et's, anti-phospholipid syndrome)
4. Caval occlusion at or proximal to the level of the renal veins
5. Open / hybrid open-endovascular deep venous intervention
6. Pregnancy
7. Inability to provide consent
8. Need to intervene caudal to common femoral vein confluence to achieve inflow
9. Participants that have tested positive for coronavirus within the last 3 months

Where this trial is running

London, UK

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.

View on ClinicalTrials.gov →

Conditions: Chronic Venous Insufficiency, Chronic Venous Thrombosis, Iliac Vein Stenosis, Iliac Vein Obstruction, Post Thrombotic Syndrome, Deep venous stenting, Intravascular ultrasound, Post thrombotic syndrome

Last reviewed 2026-05-15 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.