Chronic Venous Insufficiency Clinical Trial
Official title:
Best Endovenous Treatment, Including STenting, Versus Non-endovenous Treatment in Chronic Proximal Deep Venous Disease - the BEST Multi-centre Randomised Controlled Trial
Chronic obstruction of the iliac veins or inferior vena cava can occur as a result of deep vein thrombosis (DVT), or due to extrinsic compression in non-thrombotic iliac vein lesions (NIVLs). This obstruction can manifest as post-thrombotic syndrome (PTS) after DVT or as chronic venous disease (CVD) in NIVL. Despite sparse evidence, rates of venous stenting for PTS and NIVLs are increasing. A pragmatic, observer-blind, multi-centre, randomised-controlled trial for adults with CVD secondary to either PTS or NIVLs randomised to either best endovenous therapy (including venoplasty and deep venous stenting) or standard therapy (compression +/- anticoagulation). Included participants will have chronic venous disease (CEAP classification 3 - 6) secondary to proximal deep venous disease. The primary outcome is severity of venous disease at 6 months as ascertained by the Venous Clinical Severity Score (VCSS).
Symptomatic chronic obstructive lesions of the iliac veins and inferior vein cava can be secondary to post-thrombotic lesions caused by a deep vein thrombosis (DVT) or due to non-thrombotic iliac vein lesions (NIVLs). DVT has an annual incidence of 148 per 100,000 person years in Europe. Following a DVT, up to 50% of patients develop post thrombotic syndrome (PTS), defined as "chronic venous symptoms or signs secondary to DVT" i.e. lifelong leg pain, oedema and skin changes. Furthermore, the subsequent rate of venous ulceration is high with up to 29% of those with PTS suffering from active or healed venous ulcers. The pathophysiology of PTS is thought to be sustained venous hypertension from a combination of venous outflow obstruction and valvular incompetence. NIVLs are due to external compression or intrinsic lesions that reduce the venous drainage through the iliac venous system. This, in turn, can lead to chronic venous insufficiency and also increase the risk of DVT. NIVLs contribute to the significant morbidity and cost associated with CVD. NIVLs can be demonstrated on imaging as a stenosed iliac vein or in an iliac vein of normal diameter with intrinsic lesions. Rates of venous stenting for PTS and NIVLs are rapidly increasing. However, sparse evidence exists to support the use of venous stenting and clinical guidelines reflect this. Endovenous stenting is being increasingly used as a treatment option for individuals with complications relating to chronic venous disease such as skin changes, ulceration, debilitating symptoms, and functional impairment. However, a recent systematic review of sixteen eligible studies, none of which were RCTs, concluded that: "The quality of evidence to support the use of deep venous stenting to treat chronic obstructive disease is currently weak. The treatment does however appear promising and is safe and should therefore be considered as a treatment option while the evidence base is improved". Many of the studies employed stents which were not primarily designed for use in the venous system. The role of endovenous reconstruction in the context of patients with PTS and NIVLs, including deep venous stenting using modern stents designed specifically for use in the venous system, remains to be elucidated in a well-designed RCT. The rational for the proposed study is supported by both haemodynamic and clinical evidence. Retrospective cohorts of deep venous stenting in PTS and NIVLs have yielded promising results. Pre-clinical research suggests that common femoral vein pressure is increased in post thrombotic venous obstruction. It has been demonstrated that deep venous stenting improves mean ambulatory venous pressures and therefore should reduce the symptomology experienced by the individual. Furthermore, venous stents are specifically designed to be uncovered and rigid, aiming to keep the aspect ratio of the stent at a 1:1 ratio, to minimise outflow obstruction and increase venous return. ;
Status | Clinical Trial | Phase | |
---|---|---|---|
Terminated |
NCT02462096 -
A Feasibility Study of the ReLeaf Catheter System
|
N/A | |
Enrolling by invitation |
NCT05504070 -
Venclose digiRF System Post Market Study
|
N/A | |
Completed |
NCT05507346 -
A Clinical Study to Evaluate the Effectiveness of a Novel Portable Non-Pneumatic Active Compression Device vs. an Advanced Pneumatic Compression Device for Treating Lower Extremity Lymphedema
|
N/A | |
Completed |
NCT03283800 -
Copper Impact on Venous Insufficiency and Lipodermatosclerosis
|
N/A | |
Terminated |
NCT02248740 -
Radiofrequency Ablation vs. Laser Ablation of the Incompetent Small Saphenous Vein
|
Phase 4 | |
Completed |
NCT02236338 -
Radiofrequency Ablation vs Laser Ablation of the Incompetent Greater Saphenous Vein
|
Phase 4 | |
Completed |
NCT01501188 -
Efficacy Study of Kinesio Taping to Treat Muscular and Joint Problems in Chronic Venous Insufficiency
|
Phase 1 | |
Recruiting |
NCT05982405 -
Long-term Effects of Inspiratory Muscle Training in Chronic Venous Insufficiency
|
N/A | |
Completed |
NCT05383469 -
Efficacy of Active Versus Passive Methods in Chronic Venous Insufficiency
|
N/A | |
Completed |
NCT06238791 -
Plantar Pressure Analysis and Foot Biomechanics in Lipedema and Chronic Venous Disease
|
||
Withdrawn |
NCT02559427 -
SPA Therapy in the Treatment of Sleep Apnea Syndrome
|
N/A | |
Completed |
NCT02346058 -
Efficacy and Safety of Esarin Gel in Chronic Venous Insufficiency and Varicose Veins
|
Phase 4 | |
Active, not recruiting |
NCT05926830 -
Extracorporeal Flow Abolition in Relation With Primary Insufficiency of Great Saphenous Veins (GSV) Using High Intensity Focused Ultrasound (HIFU) Generated by Sonovein: A Multi Center Prospective Pivotal Study
|
N/A | |
Withdrawn |
NCT05047302 -
Investigation of Femoropopliteal In Situ Valve Formation With the InterVene System-Canada
|
N/A | |
Active, not recruiting |
NCT04339075 -
Registry to Investigate the Efficacy and Safety of VenaBlock VeIn SEaling System for VaRicose Veins in SingApore
|
||
Active, not recruiting |
NCT04580160 -
Venous Stent for the Iliofemoral Vein Investigational Clinical Trial Using the DUO Venous Stent System
|
N/A | |
Not yet recruiting |
NCT02927483 -
Study to Assess the Efficacy and Safety of Endolex Forte VErsus Diosmin and Hesperidin in Reducing VeNous Insufficiency
|
Phase 3 | |
Completed |
NCT02015221 -
Evaluation of a Dual Action Pneumatic Compression Device: Patient Ease of Use and Comfort
|
N/A | |
Completed |
NCT02050061 -
Chronic Venous Insufficiency; Impact of Compression Stockings on Quality of Life
|
N/A | |
Completed |
NCT01432795 -
Practicability of Gliding Aids for Medical Compression Stockings
|
Phase 4 |