Safety of DAbigatran and RIvaroxaban Versus NAdroparin in the Prevention of Venous Thromboembolism After Knee Arthroplasty Surgery

NCT ID: NCT01431456

Last Updated: 2018-06-07

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: PHASE3
• Total Enrollment: 148 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2013-09-30
• Study Completion Date: 2014-10-31

Brief Summary

Rationale:

After total knee arthroplasty (TKA) surgery, patients are at risk to develop venous thromboembolism (VTE) or deep venous thrombosis (DVT) potentially resulting in a fatal pulmonary embolism (PE). Two novel agents, dabigatran and rivaroxaban, recently gained market authorisation for prevention of venous thromboembolism after knee arthroplasty.

However, there are no clinical trials with dabigatran and/or rivaroxaban and the comparator nadroparin.

Nadroparin is used in the most Dutch departments of orthopaedic surgery after total knee arthroplasty. Also safety of the new oral agents with long term use of 42 days is not available for total knee arthroplasty.

Our aim is to compare the long term use of dabigatran and rivaroxaban versus nadroparin on safety after total knee arthroplasty (TKA) in a clinical explorative pilot study by observing the incidence of major bleeding and clinical relevant non-major bleeding using a standardized model of bleeding definitions.

Objective:

The primary objective of this study is to compare the clinical safety with long term use of the oral once daily unmonitored thrombin inhibitors dabigatran and rivaroxaban versus subcutaneous administered nadroparin by observing the incidence of major bleeding and clinical relevant non-major bleeding in patients after knee arthroplasty surgery.

The secondary objectives of this study are effectivity of the agents, compliance, hospital stay, re-hospitalisation, outpatient clinic visits and interventions following complications. Additionally, coagulation monitoring, knee flexion range of motion, Knee injury and Osteoarthritis Outcome Score (KOOS), Knee Society Score (KSS) and relationship between health statuses and surgery parameters will be evaluated.

Study design:

The study is designed as non-inferiority randomized open label controlled pilot study. A total of 150 patients will be included, 50 patients in each treatment group (dabigatran, rivaroxaban and nadroparin).

Study population:

Patients ≥ 18 years and weighing more than 40 kg, participate in the 'joint care program' for primary elective total knee arthroplasty and want to provide signed informed consent are eligible for the study.

Intervention:

Patients receive subcutaneously nadroparin or oral rivaroxaban or oral dabigatran after knee replacement surgery.

Main study parameters/endpoints:

The primary safety outcome is the incidence of bleeding events occurring during the study period of 135 days (including follow-up). Major bleeding events and clinically relevant non-major bleeding events were defined according to accepted guidelines.

Conditions

Venous Thromboembolism

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: SINGLE

Study Groups

Dabigatran

Dabigatran

Group Type: ACTIVE_COMPARATOR

Dabigatran

Intervention Type: DRUG

Dabigatran

Rivaroxaban

Rivaroxaban

Group Type: ACTIVE_COMPARATOR

Rivaroxaban

Intervention Type: DRUG

Rivaroxaban

Nadroparin

Nadroparin

Group Type: ACTIVE_COMPARATOR

Nadroparin

Intervention Type: DRUG

Nadroparin

Interventions

Dabigatran

Dabigatran

Intervention Type: DRUG

Rivaroxaban

Rivaroxaban

Intervention Type: DRUG

Nadroparin

Nadroparin

Intervention Type: DRUG

Eligibility Criteria

Inclusion Criteria

Patients > 18 years and weighing more than 40 kg who are scheduled for primary elective total knee arthroplasty according to the 'joint care program' and want to provided signed informed consent are eligible for the study.

Exclusion Criteria

• a known inherited or acquired clinically significant active high risk of bleeding or bleeding disorder;
• major surgery, trauma, uncontrolled severe arterial hypertension, or myocardial infarction within the last 3 months;
• history of acute intracranial disease or hemorrhagic stroke;
• gastrointestinal or urogenital bleeding or ulcer disease within the last 6 months;
• cirrhotic patients with moderate hepatic impairment (aspartate or alanine aminotransferase (AST, ALT) levels higher than 2x the upper limit of the normal range (ULN) within the last month);
• severe renal insufficiency (creatinine clearance < 30 mL/min);
• treatment with anticoagulants during study drug treatment;
• active malignant disease;
• pregnancy or breastfeeding;
• and unable to give informed consent.

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 110 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: No

Sponsors

Martini Hospital Groningen

OTHER

Sponsor Role: lead

Responsible Party

Marinus van Hulst

Hospital Pharmacist

Responsibility Role: PRINCIPAL_INVESTIGATOR

Locations

Martini Ziekenhuis

Groningen, , Netherlands

Countries

Netherlands

References

van der Veen L, Segers M, van Raay JJ, Gerritsma-Bleeker CL, Brouwer RW, Veeger NJ, van Hulst M. Bleeding complications of thromboprophylaxis with dabigatran, nadroparin or rivaroxaban for 6 weeks after total knee arthroplasty surgery: a randomised pilot study. BMJ Open. 2021 Jan 18;11(1):e040336. doi: 10.1136/bmjopen-2020-040336.

Reference Type: DERIVED

PMID: 33462096 (View on PubMed)

Veen Lv, van Raay JJ, Gerritsma-Bleeker CL, Veeger NJ, Hulst Mv. Direct treatment comparison of DAbigatran and RIvaroxaban versus NAdroparin in the prevention of venous thromboembolism after total knee arthroplasty surgery: design of a randomised pilot study (DARINA). BMJ Open. 2013 Jan 24;3(1):e002218. doi: 10.1136/bmjopen-2012-002218.

Reference Type: DERIVED

PMID: 23355673 (View on PubMed)

Other Identifiers

DARINA

Identifier Type: -

Identifier Source: org_study_id