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Showing 1–20 of 20 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Venous Reflux Clear all
Terminated Phase 2 Interventional Accepts healthy volunteers Results available

A Study Evaluating ClariVein With a Sclerosing Agent for the Treatment of Venous Insufficiency

NCT03311269
View directory record Official record
Conditions
Venous Insufficiency
Interventions
ClariVein RES, Sodium Tetradecyl Sulfate 1% Injection, Sodium Tetradecyl Sulfate 3% Injection
Device · Drug
Lead sponsor
Vascular Insights, LLC
Industry
Eligibility
18 Years to 80 Years
Enrollment
19 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2017 – 2020
U.S. locations
5
States / cities
Darien, Connecticut • Frederick, Maryland • Hyannis, Massachusetts + 2 more
Source: ClinicalTrials.gov public record
Updated Mar 1, 2022 · Synced Jul 22, 2026, 5:02 PM EDT
Active, not recruiting Not applicable Interventional

Chronic Venous Thrombosis: Relief With Adjunctive Catheter-Directed Therapy (The C-TRACT Trial)

NCT03250247
View directory record Official record
Conditions
Deep Vein Thrombosis, Venous Stasis, Venous Insufficiency, Venous Leg Ulcer, Venous Reflux, Post Thrombotic Syndrome
Interventions
Stents
Device
Lead sponsor
Washington University School of Medicine
Other
Eligibility
18 Years and older
Enrollment
225 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2026
U.S. locations
29
States / cities
Orange, California • San Francisco, California • New Haven, Connecticut + 23 more
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional

The ATLANTIS Trial

NCT02553720
View directory record Official record
Conditions
Chronic Venous Hypertension Due to Deep Vein Thrombosis, Venous Reflux
Interventions
exercise in water, aquatic activity plus conventional management
Other
Lead sponsor
Arizona Cardiovascular Consultants
Other
Eligibility
18 Years and older
Enrollment
181 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2018
U.S. locations
1
States / cities
Mesa, Arizona
Source: ClinicalTrials.gov public record
Updated Jul 22, 2020 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Phase 1 Interventional Results available

Pharmacokinetic Study of Polidocanol Endovenous Microfoam (PEM)

NCT01428076
View directory record Official record
Conditions
Varicose Veins
Interventions
Polidocanol Endovenous Microfoam (PEM)
Drug
Lead sponsor
Boston Scientific Corporation
Industry
Eligibility
18 Years to 75 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
1
States / cities
Bradenton, Florida
Source: ClinicalTrials.gov public record
Updated Apr 20, 2021 · Synced Jul 22, 2026, 5:02 PM EDT
Recruiting Not applicable Interventional

Non-healing Venous Leg Ulcers Treated With Standard Care With or Without BR-AC

NCT06811909
View directory record Official record
Conditions
Non-infected Venous Leg Ulcer, Venous Leg Ulcer, Venous Insufficiency, Venous Stasis, Venous Reflux
Interventions
BR-AC, Standard Care
Other
Lead sponsor
BioStem Technologies
Industry
Eligibility
18 Years and older
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
23
States / cities
Guntersville, Alabama • Castro Valley, California • Glendale, California + 17 more
Source: ClinicalTrials.gov public record
Updated Jan 22, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Withdrawn Not applicable Interventional

Efficacy of Vasculera in Prevention on Post-op Pain and Edema Following Lower Extremity Venous Treatment in the Outpatient Setting

NCT02936271
View directory record Official record
Conditions
Venous Insufficiency of Leg, Venous Reflux, Varicose Veins, Lower Extremity Edema Chronic
Interventions
Vasculera, Placebo
Other
Lead sponsor
Corewell Health West
Other
Eligibility
18 Years to 85 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Grand Rapids, Michigan
Source: ClinicalTrials.gov public record
Updated Nov 22, 2022 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Phase 4 Interventional Results available

ClosureFAST vs. Laser Ablation for the Treatment of GSV Disease: A Multicenter, Single-Blinded, Randomized Study.

NCT00509392
View directory record Official record
Conditions
Venous Reflux
Interventions
Seg. RF Ablation & ClosureFAST catheter, Endovenous Laser
Device
Lead sponsor
Medtronic Endovascular
Industry
Eligibility
18 Years to 80 Years
Enrollment
69 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
1
States / cities
Portland, Oregon
Source: ClinicalTrials.gov public record
Updated Jul 11, 2017 · Synced Jul 22, 2026, 5:02 PM EDT
Not listed No phase listed Observational

Lake Washington Vascular VenaSeal™ Post-Market Evaluation

NCT04146168
View directory record Official record
Conditions
Varicose Veins, Venous Reflux
Interventions
Ultrasound
Diagnostic Test
Lead sponsor
Lake Washington Vascular
Other
Eligibility
18 Years and older
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
3
States / cities
Bellevue, Washington • Issaquah, Washington • Kirkland, Washington
Source: ClinicalTrials.gov public record
Updated Oct 30, 2019 · Synced Jul 22, 2026, 5:02 PM EDT
Terminated Not applicable Interventional Results available

Perforator Vein Injection for Symptomatic Venous Disease

NCT03363633
View directory record Official record
Conditions
Venous Disease
Interventions
sodium tetradecyl sulfate, Compression
Drug · Device
Lead sponsor
Ellen Dillavou
Other
Eligibility
18 Years to 100 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 22, 2018 · Synced Jul 22, 2026, 5:02 PM EDT
Withdrawn Phase 4 Interventional

Effect of PEM Treatment of Superficial Axial and Tributary Vein Reflux on Improvement of Wound Healing in VLUs

NCT02988063
View directory record Official record
Conditions
Leg Ulcer, Veins, Varicose, Venous Ulcer, Reflux, Venous Reflux, Venous Leg Ulcer, Varicose Veins, Varicose Ulcer, Varicose Veins Leg
Interventions
Polidocanol Endovenous Microfoam (PEM)
Drug
Lead sponsor
OhioHealth
Other
Eligibility
18 Years and older
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017
U.S. locations
1
States / cities
Columbus, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 14, 2017 · Synced Jul 22, 2026, 5:02 PM EDT
Terminated Not applicable Interventional Results available

The BRILLIANT Study

NCT00618514
View directory record Official record
Conditions
Varicose Veins
Interventions
Bright Tip Laser Fiber, Bare Tip Laser Fiber
Device
Lead sponsor
Vascular Solutions LLC
Industry
Eligibility
18 Years and older
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2009
U.S. locations
7
States / cities
Dothan, Alabama • Scottsdale, Arizona • Hollywood, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 22, 2015 · Synced Jul 22, 2026, 5:02 PM EDT
Terminated Not applicable Interventional Results available

VenaSeal Spectrum: Global Post-Market Randomized Controlled Trial

NCT03820947
View directory record Official record
Conditions
Venous Reflux
Interventions
VenaSeal™ System, Endothermal Ablation (ETA), Surgical Stripping
Device · Procedure
Lead sponsor
Medtronic Endovascular
Industry
Eligibility
18 Years and older
Enrollment
506 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2025
U.S. locations
12
States / cities
Prescott Valley, Arizona • Tucson, Arizona • Fresno, California + 9 more
Source: ClinicalTrials.gov public record
Updated Dec 29, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional Results available

Effects of Non Contact Low Frequency Ultrasound in Healing Venous Leg Ulcers

NCT01549860
View directory record Official record
Conditions
Venous Insufficiency, Venous Reflux, Lower Extremity Ulcer
Interventions
MIST Therapy
Device
Lead sponsor
Celleration, Inc.
Industry
Eligibility
18 Years to 90 Years
Enrollment
156 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Weymouth, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 29, 2015 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational

Retrospective Review of Saphenous Vein Incompetence: Venaseal Versus Endovenous Thermal Ablation

NCT04006184
View directory record Official record
Conditions
Varicose Veins, Venous Reflux, Venous Insufficiency
Interventions
Chart review
Other
Lead sponsor
Lake Washington Vascular
Other
Eligibility
18 Years and older
Enrollment
547 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
1
States / cities
Bellevue, Washington
Source: ClinicalTrials.gov public record
Updated Oct 2, 2019 · Synced Jul 22, 2026, 5:02 PM EDT
Active, not recruiting Not applicable Interventional

Venclose digiRF System Post Market Study

NCT05504070
View directory record Official record
Conditions
Venous Reflux, Chronic Venous Insufficiency
Interventions
Venclose System (digiRF generator w EVSRF catheter), Venclose MAVEN System (digiRF generator w MAVEN catheter)
Device
Lead sponsor
C. R. Bard
Industry
Eligibility
18 Years and older
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
7
States / cities
Thornton, Colorado • Kailua, Hawaii • Roseville, Michigan + 4 more
Source: ClinicalTrials.gov public record
Updated Mar 17, 2026 · Synced Jul 22, 2026, 5:02 PM EDT
Terminated Not applicable Interventional Results available

Investigation of Femoropopliteal In Situ Valve Formation With the InterVene System (INFINITE-US)

NCT04225806
View directory record Official record
Conditions
Chronic Venous Insufficiency (CVI), Deep Vein Reflux
Interventions
BlueLeaf® Endovenous Valve Formation System (BlueLeaf System)
Device
Lead sponsor
Intervene, Inc.
Industry
Eligibility
18 Years and older
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2023
U.S. locations
5
States / cities
Darien, Connecticut • New York, New York • Chapel Hill, North Carolina + 2 more
Source: ClinicalTrials.gov public record
Updated Aug 18, 2025 · Synced Jul 22, 2026, 5:02 PM EDT
Completed No phase listed Observational

VeClose Five Year Follow-Up Extension Study

NCT03455699
View directory record Official record
Conditions
Great Saphenous Vein (GSV) With Venous Reflux Disease
Interventions
VenaSeal SCS, ClosureFast Radiofrequency Ablation (RFA), Roll-In (VenaSeal SCS)
Device
Lead sponsor
Medtronic Endovascular
Industry
Eligibility
21 Years to 70 Years
Enrollment
114 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2019
U.S. locations
9
States / cities
Scottsdale, Arizona • San Diego, California • Greenwood Village, Colorado + 6 more
Source: ClinicalTrials.gov public record
Updated Apr 11, 2019 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional Results available

VenaSeal Sapheon Closure System Pivotal Study (VeClose)

NCT01807585
View directory record Official record
Conditions
Great Saphenous Vein (GSV) With Venous Reflux Disease
Interventions
VenaSeal SCS, ClosureFast Radiofrequency Ablation (RFA), Roll-in (VenaSeal SCS)
Device
Lead sponsor
Medtronic Endovascular
Industry
Eligibility
21 Years to 70 Years
Enrollment
242 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2017
U.S. locations
10
States / cities
Scottsdale, Arizona • San Diego, California • Greenwood Village, Colorado + 7 more
Source: ClinicalTrials.gov public record
Updated Jun 25, 2018 · Synced Jul 22, 2026, 5:02 PM EDT
Not listed Not applicable Interventional

Outcomes of Sclerotherapy of the Ulcer Bed Compared to a Combination of Ablation and Injections

NCT05633277
View directory record Official record
Conditions
Venous Reflux, Venous Insufficiency, Venous Ulcer, Venous Disease
Interventions
Polidocanol
Procedure
Lead sponsor
ProMedica Health System
Other
Eligibility
18 Years and older
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2024
U.S. locations
1
States / cities
Toledo, Ohio
Source: ClinicalTrials.gov public record
Updated Nov 30, 2022 · Synced Jul 22, 2026, 5:02 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Lake Washington Vascular VenaSeal™ Post-Market Evaluation (WAVES)

NCT02585726
View directory record Official record
Conditions
Venous Reflux
Interventions
SP-402 VenaSeal™ Closure System
Device
Lead sponsor
Lake Washington Vascular
Other
Eligibility
18 Years to 80 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2015 – 2017
U.S. locations
1
States / cities
Bellevue, Washington
Source: ClinicalTrials.gov public record
Updated Mar 15, 2018 · Synced Jul 22, 2026, 5:02 PM EDT