Rivaroxaban for the Prevention of Deep Vein Thrombosis in Patients With Left Iliac Vein Compression - The PLICTS Study (PLICTS)

April 16, 2024 updated by: Zhenjie Liu, Second Affiliated Hospital, School of Medicine, Zhejiang University

An Efficacy and Safety Study of Rivaroxaban for the Prevention of Deep Vein Thrombosis in Patients With Left Iliac Vein Compression Treated With Stent Implantation (PLICTS)：A Prospective Randomized Controlled Trial

The purpose of this study is to evaluate the efficacy and safety of rivaroxaban for the prevention of deep vein thrombosis in patients with left iliac vein compression treated with stent implantation.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Left Iliac Vein Compression Syndrome (LIVCS) is a disease of iliac vein stenosis/occlusion caused by chronic friction and compression of the left iliac vein by the right common iliac artery and lumbar vertebra. It is also called Cockett syndrome or May-Thurner syndrome. Recently, left iliac vein balloon dilatation with stent implantation have been used to treat patients with LIVCS, and have achieved good results. However, no matter the iliac vein stenosis or occlusion, interventional therapy can directly cause local trauma and intimal injury, which is a clear inducement of local thrombosis. Therefore, high intensity anticoagulation therapy is still needed to prevent secondary thrombosis in stent after left iliac vein balloon dilatation with stent implantation. At present, the postoperative anticoagulation regimen of these patients is early heparin anticoagulant therapy, and later warfarin anticoagulant therapy. However, due to the narrow therapeutic window of the drug, patients need to adjust the dosage according to coagulation function under the guidance of doctors. Rivaroxaban can simplify treatment, and is safe. Previous studies have shown that rivaroxaban is effective in preventing deep venous thrombosis after orthopaedic surgery. Rivaroxaban has also been shown to be safe and effective in anticoagulation therapy for patients with deep venous thrombosis and pulmonary embolism. However, Rivaroxaban lacks sufficient clinical data for adjuvant anticoagulation therapy after balloon dilatation with stent implantation. Therefore, this study should be carried out to provide the basis for LIVCS treatment guidelines and explore the clinical indications of rivaroxaban.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
224

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
    • Anhui
      • Hefei, Anhui, China, 230000
        • Recruiting
        • Anhui Provincial Hospital
        • Contact:
    • Shangdong
      • Yantai, Shangdong, China, 264000
        • Recruiting
        • Yantai Yuhuangding Hospital
        • Contact:
    • Shanghai
      • Shanghai, Shanghai, China, 200000
        • Recruiting
        • Huadong Hospital affiliated to Fudan University
        • Contact:
      • Shanghai, Shanghai, China, 200000
        • Recruiting
        • Shanghai 5th People's Hospital
        • Contact:
      • Shanghai, Shanghai, China, 200000
        • Recruiting
        • Zhongshan Hospital Affiliated to Fudan University
        • Contact:
    • Zhejiang
      • Hangzhou, Zhejiang, China
        • Recruiting
        • Zhejiang Provincial People's Hospital
        • Contact:
      • Hangzhou, Zhejiang, China, 310000
        • Recruiting
        • Sir Run Run Shaw Hospital
        • Contact:
      • Hangzhou, Zhejiang, China, 310000
        • Recruiting
        • the Second Affiliated Hospital of Zhejiang University School of Medicine
        • Contact:
      • Hangzhou, Zhejiang, China
        • Recruiting
        • Zhejiang Xiaoshan Hospital
        • Contact:

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years to 75 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Patients with thrombotic left iliac vein compression syndrome who underwent left iliac vein stent implantation

Exclusion Criteria:

  • Age < 18 years or age > 75 years
  • With history of pelvic surgery, left iliac vein trauma and pelvic radiotherapy
  • With obvious contraindications for anticoagulation therapy
  • Allergic to iodine contrast agents in the past
  • With concomitant diseases that need high-intensity anticoagulation, and the anticoagulation intensity is clearly higher than that of the patients with iliac vein therapy alone
  • Active bleeding or potential bleeding risk
  • Pregnant or breastfeeding women
  • With pelvic tumors causing compression of left iliac vein,
  • With chronic venous insufficiency of lower extremities caused by K-T syndrome
  • With malignant tumors and life expectancy < 1 year
  • Taking cytochrome P450 3A4(CYP-450 3A4) inhibitors or inducers

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Rivaroxaban
Participants will receive rivaroxaban 15mg twice daily for three weeks, then 20mg oral once daily after operation.
Drug: Rivaroxaban
Dose: 15mg twice daily for three weeks, then 20mg once daily until six months after the operation. Application: oral
Other Names:
  • Xarelto
Active Comparator: Warfarin/Nadroparin
Participants will receive nadroparin 1mg/kg twice daily (subcutaneous), plus warfarin 3mg oral once daily for 5 days after the operation, later warfarin(oral) at individually titrated doses(0.75mg to 18mg) to achieve a target international normalized ratio (INR) of 2.0 to 3.0, once daily until 6 months.
Drug: Warfarin
Dose: 3mg for 5 days after the operation, later 0.75mg to 18mg depending on INR (2.0-3.0) until 6 months Duration: 6 months Frequency: once daily Application: oral
Other Names:
  • coumadin
Drug: Nadroparin
Dose: 1mg/kg Duration: 5 days after the operation Frequency: twice daily Application: subcutaneous
Other Names:
  • Fraxiparin

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
stent occlusion rate
Time Frame: 2 year after operation
Stent occlusion is defined as DS > 50% for each modality with no procedure performed on the treated segment
2 year after operation

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Quality of Life Change Scale Survey Results
Time Frame: 1, 3, 6, 12, 18 and 24 months after operation
Quality of life will be assessed by MOS item short-form health survey scale (SF-36). SF-36 includes eight subscales: physical functioning (PF, 10 items), role limitations due to physical health problems (RL-P, 4 items), bodily pain (BP, 2 items), general health (GH, 5 items), vitality (V, 4 items), social functioning (SF, 2 items), role limitations due to emotional problems (RL-E, 3 items) and mental health (MH, 5 items). The vitality sub-score assesses energy and fatigue, and ranges from 0 (worst) - 100 (best).
1, 3, 6, 12, 18 and 24 months after operation
All cause mortality
Time Frame: 1, 3, 6, 12, 18 and 24 months after operation
Percentage of participants with all deaths
1, 3, 6, 12, 18 and 24 months after operation
anticoagulation raleted mortality
Time Frame: 1, 3, 6, 12, 18 and 24 months after operation
Percentage of participants with anticoagulation raleted deaths
1, 3, 6, 12, 18 and 24 months after operation
Proportion of participants with stent displacement/fracture
Time Frame: 1, 3, 6, 12, 18 and 24 months after operation
Events will be assessed based on computed tomography (CT) or X ray
1, 3, 6, 12, 18 and 24 months after operation
Proportion of participants with hemorrhage
Time Frame: 1, 3, 6, 12, 18 and 24 months after operation
Including hemorrhagic stroke, gastrointestinal bleeding, hematuria, mucocutaneous hemorrhage and other visceral bleeding
1, 3, 6, 12, 18 and 24 months after operation
Proportion of participants with other vascular events
Time Frame: 1, 3, 6, 12, 18 and 24 months after operation
All vascular events (ST segment elevation myocardial infarction, non ST segment elevation myocardial infarction, acute coronary syndrome, unstable angina, ischemic stroke, transient ischemic attack, pulmonary embolism, non-central nervous system systemic embolism or vascular death) will be assessed based results/films/images of confirmatory testing, and/or case summaries.
1, 3, 6, 12, 18 and 24 months after operation
Proportion of participants with thrombosis
Time Frame: 1, 3, 6, 12, 18 and 24 months after operation
1, 3, 6, 12, 18 and 24 months after operation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Second Affiliated Hospital, School of Medicine, Zhejiang University

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
Shanghai Zhongshan Hospital
Sir Run Run Shaw Hospital
Zhejiang Provincial People's Hospital
Anhui Provincial Hospital
Yantai Yuhuangding Hospital
Huadong Hospital
Shanghai 5th People's Hospital
Zhejiang Hospital

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Zhejie Liu, MD,PhD, Second Affiliated Hospital, School of Medicine, Zhejiang University

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
May 18, 2020

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
December 31, 2024

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
December 31, 2024

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 24, 2019

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 22, 2019

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 26, 2019

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 18, 2024

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
April 16, 2024

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
April 1, 2024

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SAHZhejiangU-001

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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