| Not Yet Recruiting | Comparison of Radiofrequency Ablation With Concomitant or Staged Treatment for Tributary Varicose Veins NCT07445425 | Sir Run Run Shaw Hospital | N/A |
| Recruiting | HEMOVAR Study on Hemorrhoids and Varicose Veins NCT07317492 | Aydin Adnan Menderes University | — |
| Not Yet Recruiting | Efficacy and Safety of Endovenous Ablation for Relief of Knee Pain in Elderly Patients With Lower Extremity Va NCT07239284 | Chengdu University of Traditional Chinese Medicine | — |
| Not Yet Recruiting | Knee Pain Relief After Endovenous Treatment for Lower Limb Varicose Veins: A Prospective Observational Study NCT07163312 | Chengdu University of Traditional Chinese Medicine | — |
| Not Yet Recruiting | CLaCS Using 0.2% Aetoxysklerol Foam and 70% Glucose for the Treatment of Lower Limb Telangiectasias NCT07073742 | Charles University, Czech Republic | Phase 2 |
| Not Yet Recruiting | Clinical Outcomes, Safety, and Cost-Effectiveness Analysis of Two Catheters (Xianrui Da and Medtronic) in Radi NCT07046286 | Chengdu University of Traditional Chinese Medicine | N/A |
| Completed | Varicose Veins in Petrol Pump Workers NCT07071805 | Elite College of Management Sciences, Gujranwala, Pakistan | — |
| Recruiting | Comparative Analysis of Radiofrequency Ablation and Microwave Ablation Procedures for the Treatment of Small S NCT06711120 | Chengdu University of Traditional Chinese Medicine | N/A |
| Recruiting | Observation of Pain During the Treatment of Great Saphenous Vein Using Microwave Ablation， and Analysis of Rel NCT06693245 | Chengdu University of Traditional Chinese Medicine | — |
| Unknown | Effect of Cold Immersion on Patients With Varicose Vein NCT05930587 | Gazi University | N/A |
| Completed | Efficiency of Determining the Clinical Class of Chronic Venous Disorders by Artificial Intelligence NCT05978986 | Clinic of Phlebology and Laser Surgery, Chelyabinsk, Russia | N/A |
| Recruiting | Comparative Clinical Efficacy Between Multi-layer Bandage Pressure Therapy and Gradient Pressure Elastic Stock NCT06366763 | Chengdu University of Traditional Chinese Medicine | N/A |
| Completed | Effect of Vitis Vinifera Seed Extract on Venous Reflux Time in Varicose Vein NCT05851183 | Yonsei University | Phase 4 |
| Recruiting | Study of Venous Outflow From the Lower Limbs in Patients With Pelvic Varicosities NCT06124664 | Pirogov Russian National Research Medical University | — |
| Unknown | Feasibility Study of Ultrasound-guided Functional Remodeling of Lower Extremity Superficial Venous Valve NCT05914740 | The Fourth Affiliated Hospital of Zhejiang University School of Medicine | N/A |
| Active Not Recruiting | Effects of Bioflavanoids on Vascular Wall Remodeling in Patients With Varicose Veins NCT06367166 | Ryazan State Medical University | N/A |
| Unknown | Daily Duration of Compression Treatment in Patients With Symptomatic Chronic Venous Disease NCT06175546 | Pirogov Russian National Research Medical University | N/A |
| Unknown | The Study of Reducing Adverse Effects After Radiofrequency Ablation Combined With Sclerotherapy NCT05654233 | Chengdu University of Traditional Chinese Medicine | N/A |
| Active Not Recruiting | Compont - Varicose Veins of the Lower Extremities NCT06387264 | Peking University People's Hospital | N/A |
| Completed | Vacuum Assisted Sclerotherapy Performed by Catheter NCT05581524 | I-VASC S.r.l | N/A |
| Completed | Long Term Study of 3 Radiofrequency Devices NCT04720027 | Worcestershire Acute Hospitals NHS Trust | — |
| Completed | The Evaluation of the Pathophysiology of Varicose Veins in Pregnancy NCT05058989 | Imperial College London | — |
| Completed | ACOART RF CLOSURE:Radiofrequency for Varicose Veins of Lower Extremity in China NCT04658901 | Acotec Scientific Co., Ltd | N/A |
| Unknown | Evaluation of Pain Associated With Chronic Venous Insufficiency NCT04794712 | Imperial College London | — |
| Unknown | Safety and Efficacy Study of Endovenous Microwave Ablation for Treatment of Varicose Veins NCT04645771 | Chengdu University of Traditional Chinese Medicine | N/A |
| Unknown | MicrOwave and laSer ablaTion Study (MOST Study) NCT04726124 | Beijing Tsinghua Chang Gung Hospital | N/A |
| Recruiting | Prospective Cohort Study for Varicose Veins Incidence and Natural Course NCT04546750 | Russian Phlebological Association | — |
| Recruiting | Registry for Chronic Venous Disease Incidence and Natural Course NCT04487314 | Russian Phlebological Association | — |
| Unknown | Endovenous RFA Versus Ligation and Striping for Varicose Veins NCT04526626 | The University of Hong Kong-Shenzhen Hospital | N/A |
| Completed | Great Saphenous Vein Sparing Segmental Radiofrequency Ablation in Varicose Veins Patients NCT05372146 | Pirogov Russian National Research Medical University | N/A |
| Completed | Compression And Functional Ability After Endovenous Varicose Vein Treatment NCT03613376 | Oulu University Hospital | N/A |
| Recruiting | Ongoing Registry of Treatment of Chronic Venous Diseases NCT03035747 | Medalp Private Surgery Clinic | — |
| Completed | RCT Comparing EVLA Versus Polidocanol Foam in the Treatment of SSV Insufficiency NCT05468450 | Societe Francaise de Phlebologie | N/A |
| Unknown | Venous Ulcer: Endovenous Radiofrequency Treatment Trial NCT03293836 | Juliana Puggina | N/A |
| Completed | Mechanochemical Ablation vs Thermal Ablation NCT03722134 | Helsinki University Central Hospital | N/A |
| Completed | Effects of Kinesio Taping Method on Functional Capacity and Quality of Life in Patients With Chronic Venous Di NCT04148950 | Istanbul University | N/A |