NCT05449327

Brief Summary

Venous thromboembolism is a serious complication after total hip replacement (THR) and total knee replacement (TKR). Previous studies have reported the incidence of both asymptomatic and symptomatic deep vein thrombosis (DVT) after TKR were higher in Taiwan than other countries in Asia. Therefore, the usage of prophylactic antithrombotics should be considered. The efficacy and safety of Xarelto (Rivaroxaban) for preventing venous thromboembolism has been proved. However, there is a lack of study using prospective design to evaluate the efficacy and safety of Xarelto after THR and TKR for Taiwanese. In this study, the investigators use a randomized controlled trial design comparing the incidence of DVT, pulmonary embolism, and complications between intervention and control groups.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
150

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Feb 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 29, 2022

Completed
9 days until next milestone

First Posted

Study publicly available on registry

July 8, 2022

Completed
7 months until next milestone

Study Start

First participant enrolled

February 1, 2023

Completed
2.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 21, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

September 21, 2025

Completed
7 months until next milestone

Results Posted

Study results publicly available

April 24, 2026

Completed
Last Updated

April 24, 2026

Status Verified

April 1, 2026

Enrollment Period

2.6 years

First QC Date

June 29, 2022

Results QC Date

March 5, 2026

Last Update Submit

April 22, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Deep Vein Thrombosis

    The incidence of both asymptomatic and symptomatic deep vein thrombosis

    Up to 3 months after THR and TKR

  • Pulmonary Embolism

    The incidence of pulmonary embolism

    Up to 3 months after THR and TKR

Secondary Outcomes (1)

  • Complication

    Up to 3 months after THR and TKR

Study Arms (2)

Rivaroxaban

EXPERIMENTAL

The participants are provided with Rivaroxaban 10mg

Drug: Rivaroxaban 10 MG

Control

NO INTERVENTION

The participants are provided without antithrombotics

Interventions

Patients are randomly divided into two groups. One group receives no prophylaxis with an anticoagulant, the other one receives Rivaroxaban. The dosage of Rivaroxaban is 10 mg given orally once daily starting on the day of the surgery and continuing the following 13 days.

Also known as: Xarelto
Rivaroxaban

Eligibility Criteria

Age20 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • Undergo total knee replacement or total hip replacement

You may not qualify if:

  • Recent antithrombotics use
  • A history of a coagulopathy
  • Recent thromboembolic disease
  • Preoperative deep vein thrombosis screening presents positive
  • Age below 20

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Ditmanson Medical Foundation Chiayi Christian Hospital

Chiayi City, Taiwan, 60002, Taiwan

Location

MeSH Terms

Conditions

Venous Thromboembolism

Interventions

Rivaroxaban

Condition Hierarchy (Ancestors)

ThromboembolismEmbolism and ThrombosisVascular DiseasesCardiovascular Diseases

Intervention Hierarchy (Ancestors)

ThiophenesSulfur CompoundsOrganic ChemicalsMorpholinesOxazinesHeterocyclic Compounds, 1-RingHeterocyclic Compounds

Results Point of Contact

Title
Cheng-Ming Chou
Organization
Department of Orthopedics, Ditmanson Medical Foundation Chia- Yi Christian Hospital, Chia-Yi City, Taiwan

Publication Agreements

PI is Sponsor Employee
No
Restrictive Agreement
No

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

June 29, 2022

First Posted

July 8, 2022

Study Start

February 1, 2023

Primary Completion

September 21, 2025

Study Completion

September 21, 2025

Last Updated

April 24, 2026

Results First Posted

April 24, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share

Locations