search
Back to results

Strategies for the Management of Atrial Fibrillation in patiEnts Receiving Dialysis (SAFE-D)

Primary Purpose

Atrial Fibrillation, End Stage Renal Failure on Dialysis

Status
Completed
Phase
Phase 2
Locations
International
Study Type
Interventional
Intervention
Warfarin
Apixaban
No oral anticoagulation
Sponsored by
Unity Health Toronto
About
Eligibility
Locations
Arms
Outcomes
Full info

About this trial

This is an interventional treatment trial for Atrial Fibrillation

Eligibility Criteria

18 Years - undefined (Adult, Older Adult)All SexesDoes not accept healthy volunteers

Inclusion Criteria:

  1. Age ≥ 18 years.
  2. Receiving maintenance hemodialysis or peritoneal dialysis for > 90 days.
  3. History of AF or atrial flutter as defined by:

    (i) AF or atrial flutter on a 12 lead ECG at enrollment, and not due to a reversible cause, or (ii) AF or atrial flutter documented on two separate occasions, not due to a reversible cause, at least 1 day apart prior to enrollment. AF or atrial flutter may be documented by ECG, or as an episode lasting at least 30 seconds on a rhythm strip or Holter recording, or more than 30 minutes if using pacemaker or implantable cardioverter defibrillator (ICD) recordings, or (iii) AF or atrial flutter documented on one occasion, not due to a reversible cause, prior to enrollment and being treated with an oral anticoagulant for AF or atrial flutter at enrollment. [AF or atrial flutter may be documented by ECG, or as an episode lasting at least 30 seconds on a rhythm strip or Holter recording, or more than 30 minutes if using pacemaker or implantable cardioverter defibrillator (ICD) recordings, or mentioned in the medical record], or (iv) AF or atrial flutter documented on one occasion on ECG, not due to a reversible cause, prior to enrollment and at least one more episode of AF or atrial flutter mentioned in the medical record, or (v) AF or atrial flutter documented on one occasion in a cardiologist report, not due to a reversible condition, prior to enrollment.

  4. Satisfying CHADS-65 criteria: i) Age ≥65 or ii) Age <65 and one of: hypertension, diabetes mellitus, congestive heart failure, stroke/transient ischemic attack or peripheral embolism.

Exclusion Criteria:

  1. Moderate or severe mitral stenosis.
  2. Conditions other than non-valvular atrial fibrillation that require oral anticoagulation, such as mechanical prosthetic valve, deep venous thrombosis, or pulmonary embolism.
  3. Need for aspirin at a dose > 165 mg a day, or need for aspirin in combination with P2Y12 antagonist therapy.
  4. Need for an interacting drug which precludes the safe use of apixaban.
  5. Life expectancy < 6 months.
  6. Scheduled live-donor kidney transplant in the next 6 months.
  7. A woman who is pregnant or breastfeeding or unwilling to pursue methods of contraception if < 12 months since the last menstrual period.
  8. Co-enrollment in a clinical trial where the intervention is deemed to interfere with the adherence, safety or efficacy of the intervention provided herein.
  9. Patient's attending physician(s) (e.g., nephrologist and/or cardiologist and/or neurologist) believes that oral anticoagulation is absolutely mandated.
  10. Patient's attending physician(s) (e.g., nephrologist and/or cardiologist and/or neurologist) believes that oral anticoagulation is absolutely contraindicated.

Sites / Locations

  • Nepean Hospital
  • Prince of Wales Hospital
  • Royal North Shore Hospital
  • St. George Hospital
  • Surrey Memorial Hospital
  • St. Paul's Hospital
  • Seven Oaks General Hospital
  • Nova Scotia Health Authority, QEII Health Sciences Centre
  • Royal Victoria Regional Health Centre
  • St. Joseph's Healthcare Hamilton
  • Kingston Health Sciences Centre - Kingston General Hospital
  • London Health Sciences Centre
  • Halton Healthcare - Oakville Trafalgar Memorial Hospital
  • Lakeridge Health Oshawa
  • The Ottawa Hospital - Riverside Campus
  • Health Sciences North
  • Thunder Bay Regional Health Sciences Centre
  • Sunnybrook Health Sciences Centre
  • Unity Health Toronto, at its St. Michael's Hospital site
  • University Health Network - Toronto General Hospital
  • St. Joseph's Health Centre Toronto
  • McGill University Health Centre
  • Hôpital Maisonneuve-Rosemont
  • Centre Hospitalier de l'Université de Montréal
  • Jewish General Hospital
  • Hôpital du Sacré-Cœur de Montréal
  • CHU de Québec - Université Laval
  • Regina General Hospital

Arms of the Study

Arm 1

Arm 2

Arm 3

Arm Type

Experimental

Active Comparator

Active Comparator

Arm Label

Warfarin

Apixaban

No oral anticoagulation

Arm Description

Individuals randomized to this arm will be exposed to dose-adjusted daily warfarin targeting an international normalized ratio (INR) of 2.0-3.0.

Individuals randomized to this arm will receive apixaban 5 mg twice daily (a reduced dose of 2.5 mg twice daily will be given to selected participants).

Individuals in this arm will be exposed to a treatment strategy in which no oral anticoagulation is prescribed.

Outcomes

Primary Outcome Measures

Recruitment of the target population within 2 years
At least 80% of randomized participants remain in the trial and on the allocated study treatment at the end of the 26-week study period.

Secondary Outcome Measures

Proportion of patients randomized to warfarin achieving a Time in the Therapeutic Range (TTR) >65%.
>95% of randomized patients adhere to the enrollment criteria with respect to atrial fibrillation or atrial flutter
Through adjudication of ECGs or other cardiac diagnostics
Major bleeding
As defined by the International Society of Thrombosis and Haemostasis (ISTH)
Clinically relevant non-major bleeding
As defined by the International Society of Thrombosis and Haemostasis (ISTH)
Stroke and systemic embolism
All cause mortality
Non-fatal myocardial infarction
Vascular events not related to dialysis access
Events of special interest related to dialysis access, the dialysis procedure or the oral anticoagulants
Thrombosis of fistula or graft; fistula or graft abandonment; thrombosis of dialysis catheter; red blood cell transfusions; calciphylaxis

Full Information

First Posted
June 12, 2019
Last Updated
June 19, 2023
Sponsor
Unity Health Toronto
Collaborators
Canadian Institutes of Health Research (CIHR), The George Institute for Global Health (Sydney, Australia)
search

1. Study Identification

Unique Protocol Identification Number
NCT03987711
Brief Title
Strategies for the Management of Atrial Fibrillation in patiEnts Receiving Dialysis
Acronym
SAFE-D
Official Title
Strategies for the Management of Atrial Fibrillation in patiEnts Receiving Dialysis (SAFE-D)
Study Type
Interventional

2. Study Status

Record Verification Date
June 2023
Overall Recruitment Status
Completed
Study Start Date
December 10, 2019 (Actual)
Primary Completion Date
December 31, 2022 (Actual)
Study Completion Date
December 31, 2022 (Actual)

3. Sponsor/Collaborators

Responsible Party, by Official Title
Sponsor
Name of the Sponsor
Unity Health Toronto
Collaborators
Canadian Institutes of Health Research (CIHR), The George Institute for Global Health (Sydney, Australia)

4. Oversight

Studies a U.S. FDA-regulated Drug Product
No
Studies a U.S. FDA-regulated Device Product
No
Data Monitoring Committee
Yes

5. Study Description

Brief Summary
The prevention of atrial fibrillation related thromboembolism in the dialysis population is unclear. While the practice of anticoagulation appears favorable in patients with mild-to-moderate chronic kidney disease, no patients with severe chronic kidney disease (estimated glomerular filtration rate <25 ml/min), and specifically those receiving dialysis, have been included in randomized trials.Moreover, the effect of anticoagulation in the dialysis population may fundamentally differ from those studied in clinical trials. Accordingly, characterization of the optimal management strategy to reduce the risk of stroke and systemic embolism in patients with atrial fibrillation receiving dialysis is a priority. The overall goal of this pilot trial is to evaluate the feasibility of conducting a randomized controlled trial comparing anticoagulation strategies in patients with atrial fibrillation receiving dialysis (either hemodialysis or peritoneal dialysis).

6. Conditions and Keywords

Primary Disease or Condition Being Studied in the Trial, or the Focus of the Study
Atrial Fibrillation, End Stage Renal Failure on Dialysis

7. Study Design

Primary Purpose
Treatment
Study Phase
Phase 2
Interventional Study Model
Parallel Assignment
Masking
None (Open Label)
Allocation
Randomized
Enrollment
151 (Actual)

8. Arms, Groups, and Interventions

Arm Title
Warfarin
Arm Type
Experimental
Arm Description
Individuals randomized to this arm will be exposed to dose-adjusted daily warfarin targeting an international normalized ratio (INR) of 2.0-3.0.
Arm Title
Apixaban
Arm Type
Active Comparator
Arm Description
Individuals randomized to this arm will receive apixaban 5 mg twice daily (a reduced dose of 2.5 mg twice daily will be given to selected participants).
Arm Title
No oral anticoagulation
Arm Type
Active Comparator
Arm Description
Individuals in this arm will be exposed to a treatment strategy in which no oral anticoagulation is prescribed.
Intervention Type
Drug
Intervention Name(s)
Warfarin
Other Intervention Name(s)
Coumadin
Intervention Description
Individuals randomized to this arm will be exposed to dose-adjusted daily warfarin targeting an international normalized ratio (INR) of 2.0-3.0.
Intervention Type
Drug
Intervention Name(s)
Apixaban
Other Intervention Name(s)
Eliquis
Intervention Description
Individuals randomized to this arm will receive apixaban 5 mg twice daily (a reduced dose of 2.5 mg twice daily will be given to selected participants).
Intervention Type
Other
Intervention Name(s)
No oral anticoagulation
Intervention Description
No oral anticoagulation
Primary Outcome Measure Information:
Title
Recruitment of the target population within 2 years
Time Frame
2 years from start of trial
Title
At least 80% of randomized participants remain in the trial and on the allocated study treatment at the end of the 26-week study period.
Time Frame
26 weeks
Secondary Outcome Measure Information:
Title
Proportion of patients randomized to warfarin achieving a Time in the Therapeutic Range (TTR) >65%.
Time Frame
26 weeks
Title
>95% of randomized patients adhere to the enrollment criteria with respect to atrial fibrillation or atrial flutter
Description
Through adjudication of ECGs or other cardiac diagnostics
Time Frame
End of trial
Title
Major bleeding
Description
As defined by the International Society of Thrombosis and Haemostasis (ISTH)
Time Frame
26 weeks
Title
Clinically relevant non-major bleeding
Description
As defined by the International Society of Thrombosis and Haemostasis (ISTH)
Time Frame
26 weeks
Title
Stroke and systemic embolism
Time Frame
26 weeks
Title
All cause mortality
Time Frame
26 weeks
Title
Non-fatal myocardial infarction
Time Frame
26 weeks
Title
Vascular events not related to dialysis access
Time Frame
26 weeks
Title
Events of special interest related to dialysis access, the dialysis procedure or the oral anticoagulants
Description
Thrombosis of fistula or graft; fistula or graft abandonment; thrombosis of dialysis catheter; red blood cell transfusions; calciphylaxis
Time Frame
26 weeks

10. Eligibility

Sex
All
Minimum Age & Unit of Time
18 Years
Accepts Healthy Volunteers
No
Eligibility Criteria
Inclusion Criteria: Age ≥ 18 years. Receiving maintenance hemodialysis or peritoneal dialysis for > 90 days. History of AF or atrial flutter as defined by: (i) AF or atrial flutter on a 12 lead ECG at enrollment, and not due to a reversible cause, or (ii) AF or atrial flutter documented on two separate occasions, not due to a reversible cause, at least 1 day apart prior to enrollment. AF or atrial flutter may be documented by ECG, or as an episode lasting at least 30 seconds on a rhythm strip or Holter recording, or more than 30 minutes if using pacemaker or implantable cardioverter defibrillator (ICD) recordings, or (iii) AF or atrial flutter documented on one occasion, not due to a reversible cause, prior to enrollment and being treated with an oral anticoagulant for AF or atrial flutter at enrollment. [AF or atrial flutter may be documented by ECG, or as an episode lasting at least 30 seconds on a rhythm strip or Holter recording, or more than 30 minutes if using pacemaker or implantable cardioverter defibrillator (ICD) recordings, or mentioned in the medical record], or (iv) AF or atrial flutter documented on one occasion on ECG, not due to a reversible cause, prior to enrollment and at least one more episode of AF or atrial flutter mentioned in the medical record, or (v) AF or atrial flutter documented on one occasion in a cardiologist report, not due to a reversible condition, prior to enrollment. Satisfying CHADS-65 criteria: i) Age ≥65 or ii) Age <65 and one of: hypertension, diabetes mellitus, congestive heart failure, stroke/transient ischemic attack or peripheral embolism. Exclusion Criteria: Moderate or severe mitral stenosis. Conditions other than non-valvular atrial fibrillation that require oral anticoagulation, such as mechanical prosthetic valve, deep venous thrombosis, or pulmonary embolism. Need for aspirin at a dose > 165 mg a day, or need for aspirin in combination with P2Y12 antagonist therapy. Need for an interacting drug which precludes the safe use of apixaban. Life expectancy < 6 months. Scheduled live-donor kidney transplant in the next 6 months. A woman who is pregnant or breastfeeding or unwilling to pursue methods of contraception if < 12 months since the last menstrual period. Co-enrollment in a clinical trial where the intervention is deemed to interfere with the adherence, safety or efficacy of the intervention provided herein. Patient's attending physician(s) (e.g., nephrologist and/or cardiologist and/or neurologist) believes that oral anticoagulation is absolutely mandated. Patient's attending physician(s) (e.g., nephrologist and/or cardiologist and/or neurologist) believes that oral anticoagulation is absolutely contraindicated.
Overall Study Officials:
First Name & Middle Initial & Last Name & Degree
Ziv Harel
Organizational Affiliation
Unity Health Toronto
Official's Role
Principal Investigator
First Name & Middle Initial & Last Name & Degree
Ron Wald
Organizational Affiliation
Unity Health Toronto
Official's Role
Principal Investigator
Facility Information:
Facility Name
Nepean Hospital
City
Kingswood
State/Province
New South Wales
ZIP/Postal Code
2747
Country
Australia
Facility Name
Prince of Wales Hospital
City
Randwick
State/Province
New South Wales
ZIP/Postal Code
2031
Country
Australia
Facility Name
Royal North Shore Hospital
City
Saint Leonards
State/Province
New South Wales
ZIP/Postal Code
2065
Country
Australia
Facility Name
St. George Hospital
City
Sydney
Country
Australia
Facility Name
Surrey Memorial Hospital
City
Surrey
State/Province
British Columbia
ZIP/Postal Code
V3V 0C6
Country
Canada
Facility Name
St. Paul's Hospital
City
Vancouver
State/Province
British Columbia
ZIP/Postal Code
V6Z 1Y6
Country
Canada
Facility Name
Seven Oaks General Hospital
City
Winnipeg
State/Province
Manitoba
ZIP/Postal Code
R2V 3M3
Country
Canada
Facility Name
Nova Scotia Health Authority, QEII Health Sciences Centre
City
Halifax
State/Province
Nova Scotia
ZIP/Postal Code
B3H 1V7
Country
Canada
Facility Name
Royal Victoria Regional Health Centre
City
Barrie
State/Province
Ontario
ZIP/Postal Code
L4M 6M2
Country
Canada
Facility Name
St. Joseph's Healthcare Hamilton
City
Hamilton
State/Province
Ontario
ZIP/Postal Code
L8N 4A6
Country
Canada
Facility Name
Kingston Health Sciences Centre - Kingston General Hospital
City
Kingston
State/Province
Ontario
ZIP/Postal Code
K7L 2V7
Country
Canada
Facility Name
London Health Sciences Centre
City
London
State/Province
Ontario
ZIP/Postal Code
N6A 5A5
Country
Canada
Facility Name
Halton Healthcare - Oakville Trafalgar Memorial Hospital
City
Oakville
State/Province
Ontario
ZIP/Postal Code
L6M 0L8
Country
Canada
Facility Name
Lakeridge Health Oshawa
City
Oshawa
State/Province
Ontario
ZIP/Postal Code
L1G 2B9
Country
Canada
Facility Name
The Ottawa Hospital - Riverside Campus
City
Ottawa
State/Province
Ontario
Country
Canada
Facility Name
Health Sciences North
City
Sudbury
State/Province
Ontario
ZIP/Postal Code
P3E 5J1
Country
Canada
Facility Name
Thunder Bay Regional Health Sciences Centre
City
Thunder Bay
State/Province
Ontario
ZIP/Postal Code
P7B 6V4
Country
Canada
Facility Name
Sunnybrook Health Sciences Centre
City
Toronto
State/Province
Ontario
ZIP/Postal Code
M4G 3E8
Country
Canada
Facility Name
Unity Health Toronto, at its St. Michael's Hospital site
City
Toronto
State/Province
Ontario
ZIP/Postal Code
M5B 1W8
Country
Canada
Facility Name
University Health Network - Toronto General Hospital
City
Toronto
State/Province
Ontario
ZIP/Postal Code
M6K3S2
Country
Canada
Facility Name
St. Joseph's Health Centre Toronto
City
Toronto
State/Province
Ontario
ZIP/Postal Code
M6R 1B5
Country
Canada
Facility Name
McGill University Health Centre
City
Montreal
State/Province
Quebec
ZIP/Postal Code
H8S 4K4
Country
Canada
Facility Name
Hôpital Maisonneuve-Rosemont
City
Montréal
State/Province
Quebec
ZIP/Postal Code
H1T 2M4
Country
Canada
Facility Name
Centre Hospitalier de l'Université de Montréal
City
Montréal
State/Province
Quebec
ZIP/Postal Code
H2X 3E4
Country
Canada
Facility Name
Jewish General Hospital
City
Montréal
State/Province
Quebec
ZIP/Postal Code
H3T 1E2
Country
Canada
Facility Name
Hôpital du Sacré-Cœur de Montréal
City
Montréal
State/Province
Quebec
ZIP/Postal Code
H4J 1C5
Country
Canada
Facility Name
CHU de Québec - Université Laval
City
Quebec City
State/Province
Quebec
ZIP/Postal Code
G1R 2J6
Country
Canada
Facility Name
Regina General Hospital
City
Regina
State/Province
Saskatchewan
ZIP/Postal Code
S4P 0W5
Country
Canada

12. IPD Sharing Statement

Learn more about this trial

Strategies for the Management of Atrial Fibrillation in patiEnts Receiving Dialysis

We'll reach out to this number within 24 hrs