Actively Recruiting

Phase Not Applicable
Age: 18Years +
All Genders
ID04694248

Anticoagulant Plus Antiplatelet Therapy Following Iliac Vein Stenting

Led by First Affiliated Hospital of Zhejiang University · Updated on 2025-09-25

172

Participants Needed

1

Research Sites

25 weeks

Total Duration

On this page

Sponsors

F

First Affiliated Hospital of Zhejiang University

Lead Sponsor

Z

Zhejiang University

Collaborating Sponsor

AI-Summary

What this Trial Is About

Researchers are evaluating the safety and effectiveness of combining anticoagulant and antiplatelet therapy to keep the iliac vein open one year after stenting in patients with acute proximal deep vein thrombosis (DVT) and iliac vein narrowing. This single-arm, open-label study involves 172 adults diagnosed with these conditions who have undergone percutaneous mechanical thrombectomy and iliac vein stenting. The study is conducted across multiple centers in Zhejiang Province, China. Participants will receive rivaroxaban 20 mg once daily for six months along with aspirin 100 mg once daily indefinitely after the stent placement. The study lasts 12 months, with follow-up visits at 3, 6, and 12 months to monitor treatment effects and safety. Evaluations include vein patency, bleeding events, post-thrombotic syndrome severity, and DVT recurrence rates. During the study, participants will have regular assessments to document efficacy and safety outcomes, including clinical evaluations and monitoring for bleeding or other complications. Data collected throughout the 12-month period will be analyzed to understand the combination therapy's impact on maintaining vein openness and patient safety after iliac vein stenting.

CONDITIONS

Brief Title

Anticoagulant Plus Antiplatelet Therapy Following Iliac Vein Stenting

Who Can Participate

Age: 18Years +
All Genders

Eligibility Criteria

Eligible

You may qualify if you...

  • Diagnosed with deep venous thrombosis (DVT) and ipsilateral iliac vein stenosis greater than 50%
  • Have undergone percutaneous mechanical thrombectomy, with or without catheter-directed thrombolysis
  • Received iliac vein stent implantation within 30 days of thrombectomy or thrombolysis
  • Adults aged 18 years or older
Not Eligible

You will not qualify if you...

  • Chronic DVT or DVT onset longer than 3 weeks
  • Isolated distal DVT not affecting the ipsilateral femoral or iliac vein
  • Glomerular filtration rate less than 60 ml/min
  • Presence of ipsilateral varicose veins or venous insufficiency before DVT
  • Acute arterial embolism or significant stenosis in abdominal aorta, ipsilateral iliac artery, or lower extremity artery
  • Known aneurysms or limiting dissections in relevant arteries
  • Contraindications to antiplatelet or anticoagulant drugs
  • Untreatable systemic diseases
  • Prior use of anticoagulants or antiplatelet drugs before DVT
  • Under 18 years old or unwilling to participate
  • Myocardial infarction within the past 6 months
  • High bleeding risk due to conditions like intracerebral hemorrhage, recent gastrointestinal bleeding, liver failure, coagulopathy, extreme frailty, or severe renal failure requiring dialysis

AI-Screening

AI-Powered Screening

Complete this quick 3-step screening to check your eligibility

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Your Study Journey

Screening

Duration - 2 to 4 weeks

Participants are screened for eligibility to participate in the trial.

1 visit (in-person)

Treatment

Duration - 6 months for rivaroxaban; aspirin continues indefinitely

Participants receive anticoagulant therapy with rivaroxaban once daily for 6 months and antiplatelet therapy with aspirin once daily indefinitely following iliac vein stenting.

Visits at 3 months and 6 months post-procedure

Follow-up

Duration - Up to 12 months

Participants are followed to monitor efficacy and safety endpoints after treatment, including patency, bleeding events, post-thrombotic syndrome, and recurrence of deep venous thrombosis.

Visits at 12 months post-procedure

Trial Site Locations

Total: 1 location

1

The First Affliated Hospital, Zhejiang University, School of Medicine

Hangzhou, Zhejiang, China

Actively Recruiting

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Research Team

H

Hongkun Zhang, M.D.

How is the study designed?

Study Type

INTERVENTIONAL

Masking

NONE

Allocation

NA

Model

SINGLE_GROUP

Primary Purpose

TREATMENT

Number of Arms

1

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Published Research Related To This Trial

Post-thrombotic syndrome after catheter-directed thrombolysis for deep vein thrombosis (CaVenT): 5-year follow-up results of an open-label, randomised controlled trial.

Ylva Haig, Tone Enden, Ole Grøtta...

https://pubmed.ncbi.nlm.nih.gov/26853645

Endovascular Management of Deep Vein Thrombosis with Rheolytic Thrombectomy: Final Report of the Prospective Multicenter PEARL (Peripheral Use of AngioJet Rheolytic Thrombectomy with a Variety of Catheter Lengths) Registry.

Mark J Garcia, Robert Lookstein, Rahul Malhotra...

https://pubmed.ncbi.nlm.nih.gov/25824314

Safety and Effectiveness of Stent Placement for Iliofemoral Venous Outflow Obstruction: Systematic Review and Meta-Analysis.

Mahmood K Razavi, Michael R Jaff, Larry E Miller

https://pubmed.ncbi.nlm.nih.gov/26438686

Combination of factor Xa inhibition and antiplatelet therapy after stenting in patients with iliofemoral post-thrombotic venous obstruction.

Nicolas Langwieser, Isabell Bernlochner, Isabel Wustrow...

https://pubmed.ncbi.nlm.nih.gov/26183668