NCT05705076

Brief Summary

Direct Oral Anticoagulants INTRODUCTION: DOAC's looks like an attractive alternative to VKA because they offer important advantages beyond their easiness of administration, like less interactions and no need of laboratory monitoring. 1 All oral anticoagulant regimens but not aspirin were associated with a lower risk of recurrent VTE, while only VKAs were associated with a higher risk of major bleeding. 2 There have been significant differences between VKAs and DOACs in the risk of major bleeding by the current study size. Even though the risk of major bleeding with VKAs may be lower in patients already challenged to anticoagulation treatment. 3 Furthermore, when deciding on longer term secondary prevention of VTE, DOACs appeared safer than standard-intensity VKAs, taking clinically relevant bleeding or any bleeding into consideration.4-5 Until now there is no randomized controlled trial assessing the role of oral direct anticoagulant as a prophylaxis for catheter associated venous thromboembolism. Aim of the work: To evaluate the efficacy of direct oral anticoagulants as a prophylactic anticoagulation in thromboprophylaxis of catheter induced thrombosis. Patients and methods Study location: The study will be conducted at the department of vascular surgery in Mansoura University, Faculty of Medicine, Mansoura, Egypt . Type of study: Randomized Controlled Prospective study Study duration: 2 years: 2022-2024 Sample size: It will include all patients presented to our department fulfilling the inclusion criteria. Study population: The study will be conducted in patients with any permanent catheter inserted intravenous either femoral or jugular either for hemodialysis or replacement therapy . Inclusion criteria: Any permanent catheter inserted intravenous either femoral or jugular either for hemodialysis, replacement or chemotherapy. Exclusion criteria: History of central venous occlusion, contraindication of direct oral anticoagulants. Consent: Patients must sign informed consent about possible complications from the therapy. Data collection: The demographics, symptoms, and preoperative clinical data will be collected. History Data: including underlying medical conditions, any previous associated morbidity. Examination: Venous examinations. Laboratory: Blood picture, Blood sugar level, Kidney functions, Liver functions and Coagulation profile. Imaging: Duplex US Method of Randomization: Computer-based Therapies group A : Apixaban 2.5 mg twice group B : Rivaroxaban 10 mg plus placebo group C : Placebo without anticoagulation Follow up All patients are followed by duplex ultrasonography to assess the thrombosis at the tip of catheter or around the catheter 10 days postoperative and 1, 3, 6, months then after one year, venography is indicated if the clinical evaluation not matched with sonographic results.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
1,100

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Jan 2023

Status
unknown

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

January 21, 2023

Completed
3 days until next milestone

Study Start

First participant enrolled

January 24, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

January 30, 2023

Completed
1.2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 25, 2024

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 25, 2024

Completed
Last Updated

January 30, 2023

Status Verified

January 1, 2023

Enrollment Period

1.2 years

First QC Date

January 21, 2023

Last Update Submit

January 21, 2023

Conditions

Outcome Measures

Primary Outcomes (1)

  • thromboprophylaxis of catheter induced thrombosis

    Prevention of thrombosis

    6 months

Secondary Outcomes (1)

  • Duplex ultrasonography

    6 months

Study Arms (2)

Placebo without anticoagulation

PLACEBO COMPARATOR

Without any anticoagulation

Drug: catheter induced thromboprophylaxis

Low Dose Direct Oral Anticoagulation

ACTIVE COMPARATOR

Apixaban 2.5 mg twice Rivaroxaban 10 mg plus placebo

Drug: catheter induced thromboprophylaxis

Interventions

Direct oral anticoagulation for catheter induced thromboprophylaxis

Low Dose Direct Oral AnticoagulationPlacebo without anticoagulation

Eligibility Criteria

Age10 Years - 95 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • Any permanent catheter inserted intravenous either femoral or jugular either for hemodialysis, replacement or chemotherapy.

You may not qualify if:

  • History of central venous occlusion, contraindication of direct oral anticoagulants.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Natale P, Palmer SC, Ruospo M, Longmuir H, Dodds B, Prasad R, Batt TJ, Jose MD, Strippoli GF. Anticoagulation for people receiving long-term haemodialysis. Cochrane Database Syst Rev. 2024 Jan 8;1(1):CD011858. doi: 10.1002/14651858.CD011858.pub2.

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
QUADRUPLE
Who Masked
PARTICIPANT, CARE PROVIDER, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
PREVENTION
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

January 21, 2023

First Posted

January 30, 2023

Study Start

January 24, 2023

Primary Completion

March 25, 2024

Study Completion

June 25, 2024

Last Updated

January 30, 2023

Record last verified: 2023-01