Safety and Efficacy of Apixaban in Severe Renal Impairment

August 24, 2022 updated by: Henny Billett, Albert Einstein College of Medicine

Despite emergence of new anticoagulants over the last few years, patients with advanced chronic kidney disease still have limited options and are usually managed with warfarin after venous thromboembolism or diagnosis of atrial fibrillation. The use of all direct oral anticoagulants is not recommended in patients with creatinine clearance below 15 mL/min. Apixaban has the lowest fraction of renal excretion (27%) and is sometimes used in patients with CKD V (GFR < 15 mL/min/BSA) and end stage renal disease (ESRD). Until recently, data on apixaban use in this population were limited to pharmacodynamics as patients with severe renal impairment were excluded from clinical trials. In a 2016 study, it was found that ESRD resulted in 36% increase in apixaban AUC but no increase in Cmax, and that hemodialysis had a limited impact on apixaban clearance.1 There are now data available on inpatient use of apixaban vs.coumadin in patients with creatinine clearance below 25 ml/min.2 There was no significant difference in bleeding events between the two groups but the study period was limited to a hospital admission and may not reflect bleeding risk of long-term anticoagulation.

Use of warfarin in patients on hemodialysis entails several disadvantages in this population. The need for INR monitoring adds clinic visits for patients that already spend a great portion of their time in healthcare facilities. Numerous drug interactions, involving warfarin, complicate management of ESRD patients that are often on many medications. The reduced risk of intracranial bleeding on apixaban, compared to warfarin, in the ARISTOTLE study, is an important consideration in patients that may already be at increased risk due other factors such as uremia and concurrent antiplatelet agents.

Study Overview

Status

Withdrawn

Conditions

Detailed Description

This is a retrospective cohort study. The investigators will use Clinical Looking Glass (CLG) to identify all adult patients with creatinine clearance < 15 ml/min who were treated with apixaban or warfarin, for at least 1 month, between 3/1/2013 and 3/1/2017. The investigators will then review electronic charts in Carecast and Epic to gather data about bleeding and thrombotic events.Primary outcome: clinically significant bleeding, per Control of Anticoagulation Subcommittee criteria: 1) fatal bleed; 2) symptomatic bleed at anatomically critical sites such as intracranial, intraspinal, intraocular, or pericardial hemorrhage; 3)symptomatic noncritical bleeds resulting in transfusion of 2 units or more of red blood cells or drop in hemoglobin of at least 2.0 g/dl.4 Secondary outcomes: venous thromboembolism, cerebrovascular accident, intracranial hemorrhage, bleeding related to HD access

Study Type

Observational

Contacts and Locations

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

Study Locations

    • New York
      • Bronx, New York, United States, 10467
        • Montefiore Medical Center

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

Ages Eligible for Study

  • Child
  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Patients with creatinine clearance <15 mL/min who are on anticoagulation with apixaban or warfarin.

Description

Inclusion Criteria:

  • Patients with creatinine clearance <15 mL/min who are on anticoagulation with apixaban or warfarin.

Exclusion Criteria:

  • Patients without end stage renal disease who are not on anticoagulation with apixaban or warfarin.

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

  • Observational Models: Cohort
  • Time Perspectives: Retrospective

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Clinically significant bleeding
Time Frame: 4 years
1) fatal bleed; 2) symptomatic bleed at anatomically critical sites such as intracranial, intraspinal, intraocular, or pericardial hemorrhage; 3) symptomatic noncritical bleeds resulting in transfusion of 2 units or more of red blood cells or drop in hemoglobin of at least 2.0 g/dl
4 years

Collaborators and Investigators

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

Sponsor

Investigators

  • Principal Investigator: Henny H Billett, MD, Albert Einstein College of Medicine and Montefiore Medical Center

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)

May 10, 2017

Primary Completion (Actual)

July 7, 2019

Study Completion (Actual)

August 24, 2022

Study Registration Dates

First Submitted

January 8, 2018

First Submitted That Met QC Criteria

January 8, 2018

First Posted (Actual)

January 16, 2018

Study Record Updates

Last Update Posted (Actual)

August 26, 2022

Last Update Submitted That Met QC Criteria

August 24, 2022

Last Verified

August 1, 2022

More Information

Terms related to this study

Other Study ID Numbers

  • 2017-7774

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

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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