Ziv Harel, University of Toronto

Research

Apixaban Atrial Fibrillation Hemodialysis End Stage Renal Disease Anticoagulation Direct Oral Anticoagulants Feasibility Warfarin

Latest papers

Glucagon-like Peptide-1 Receptor Agonists and Risk of Major Adverse Cardiovascular Events in Patients With CKD.
American journal of kidney diseases : the official journal of the National Kidney Foundation · 2026
Prepregnancy Serum Creatinine Concentration and Risk of Severe Maternal Morbidity and Mortality.
Kidney medicine · 2026 · first author
First-trimester serum placental growth factor and risk of severe maternal morbidity and mortality.
American journal of obstetrics and gynecology · 2026 · senior author

All 108 publications

Latest funding

Strategies for the management of Atrial Fibrillation in patiEnts receiving Dialysis 2 (SAFE-D2)
CIHR · 2025 · Nominated PI
$1,874,251
Glucagon-like-peptide-1 Receptor Agonists in Patients Receiving Maintenance Dialysis (GUARD-1)
CIHR · 2023 · Co-investigator
$566,099
Hemoglobin A1c and adverse perinatal, child and maternal outcomes
CIHR · 2021 · Co-investigator
$75,000

All 6 grants and awards

108 publications.

01

Glucagon-like Peptide-1 Receptor Agonists and Risk of Major Adverse Cardiovascular Events in Patients With CKD.

Yau K, Ray JG, Jeyakumar N, Luo B, Abdullah S, Dixon SN, Wing S, Clemens KK, Castrillon-Ramirez F, Udell JA, Meraz-Munoz A, Young A, Harel Z, Perl J, Leiter LA, Garg AX, Cherney DZI, Wald R

American journal of kidney diseases : the official journal of the National Kidney Foundation2026

DOI: 10.1053/j.ajkd.2025.09.010 PMID: 41238166

02

Prepregnancy Serum Creatinine Concentration and Risk of Severe Maternal Morbidity and Mortality.

Harel Z, Kang Y, Velez MP, Dayan N, Ray JG

Kidney medicine2026First author

DOI: 10.1016/j.xkme.2026.101455 PMID: 42701382

03

First-trimester serum placental growth factor and risk of severe maternal morbidity and mortality.

Ray JG, Velez MP, Kang Y, Huang T, Dayan N, Jairam JA, Harel Z

American journal of obstetrics and gynecology2026Senior author

DOI: 10.1016/j.ajog.2026.03.014 PMID: 41864315

04

Ischemic Stroke, Major Bleeding and Death Following Oral Anticoagulation for Atrial Fibrillation Among Elderly Long-term Care Residents With Chronic Kidney Disease.

Harel Z, Kang Y, Stirling K, Ray JG, Win SL

Kidney medicine2026First author

DOI: 10.1016/j.xkme.2026.101456 PMID: 42668457

05

The Impact of a Central Acid Delivery System on the Carbon Footprint of In-Center Hemodialysis.

Shah M, Singh S, Shi W, Barlow GK, Ghimire A, Goldstein M, Harel Z, Wald R, Perl J, Pooya H

Kidney international reports2026

DOI: 10.1016/j.ekir.2026.106502 PMID: 42058118

06

Phosphate-latest news and ongoing trials.

Parpia AS, Kumra R, Mansell C, Harel Z, Perl J, Ben-Bassat OK, Wald R

Clinical kidney journal2026

DOI: 10.1093/ckj/sfag108 PMID: 42311904

07

Incidence and Prevalence of Atrial Fibrillation Among Individuals With Chronic Kidney Disease.

Wing SL, Jeyakumar N, Kang Y, Stirling K, Wald R, Harel Z

Kidney medicine2026Senior author

DOI: 10.1016/j.xkme.2025.101184 PMID: 41503093

08

The Role of Pilot Studies When Planning Clinical Trials in Nephrology

Harel Z, Prce I, Walsh M, Wald R

Journal of the American Society of Nephrology20261 citationsFirst author

DOI: 10.1681/asn.0000001146

09

Kidney recovery after iodinated contrast administration in patients with acute kidney injury receiving renal replacement therapy.

Khoo B, Friedrich JO, Lebovic G, Hiremath S, Fishman G, Wing S, Meraz-Munoz A, Harel Z, Goder N, Gal-Oz A, Bagshaw SM, Wald R

Journal of critical care2025

DOI: 10.1016/j.jcrc.2025.155015 PMID: 39889644

10

Glucagon-Like Peptide 1 Receptor Agonists and the Risk of Emergency Department Visits and Hospitalization in Patients With Chronic Kidney Disease.

Yau K, Ray JG, Jeyakumar N, Luo B, Abdullah S, McArthur E, Dixon SN, Wing S, Clemens KK, Castrillon-Ramirez F, Udell JA, Meraz-Munoz A, Young A, Harel Z, Perl J, Sridhar VS, Ni H, Yi TW, Leiter LA, Garg AX, Cherney DZI, Wald R

Diabetes care2025

DOI: 10.2337/dc24-2811 PMID: 40569823

Strategies for the management of Atrial Fibrillation in patiEnts receiving Dialysis 2 (SAFE-D2)

Nominated PICIHR2025Project Grant

Principal investigators: Harel, Ziv; Wald, Ron

Keywords: Apixaban; Atrial Fibrillation; End Stage Renal Disease; Hemodialysis

$1,874,251

Glucagon-like-peptide-1 Receptor Agonists in Patients Receiving Maintenance Dialysis (GUARD-1)

Co-investigatorCIHR2023Project Grant

Principal investigators: Wald, Ron; Cherney, David Z; Clemens, Kristin K; Yau, Kevin

Keywords: Diabetes Mellitus; Dialysis; End-Stage Kidney Disease; Glp-1 Receptor Agonists; Pilot Rct

$566,099

Hemoglobin A1c and adverse perinatal, child and maternal outcomes

Co-investigatorCIHR2021Project Grant - PA: Data Analysis Using Existing Databases and Cohorts

Principal investigators: Ray, Joel G

Keywords: Abortion; Cardiovascular Disease; Congenital Anomaly; Diabetes Mellitus; Kidney Disease; Miscarriage; Periconceptional; Pregnancy; Severe Infection; Severe Maternal Morbidity

$75,000

Pragmatic randomised trial of High Or Standard PHosphAte Targets in End-stage kidney disease - PHOSPHATE Canada (TARGET 2)

Co-investigatorCIHR2018Project Grant

Principal investigators: Wald, Ron; Walsh, Michael W

Keywords: Dialysis; End-Stage Renal Disease; Phosphate; Randomized Control Trial

$1,526,175

Strategies for the management of Atrial Fibrillation in patiEnts receiving HemoDialysis (SAFE-HD)

Nominated PICIHR2018Project Grant

Principal investigators: Harel, Ziv; Wald, Ron

Keywords: Anticoagulation; Apixaban; Atrial Fibrillation; Direct Oral Anticoagulants; Feasibility; Hemodialysis; Warfarin

$314,416

Lithium and Renal Disease in Older Adults

Co-investigatorCIHR2012Catyalyst Grant: Health Services and Systems for an Aging Population

Principal investigators: Gruneir, Andrea; Herrmann, Nathan

Keywords: Aging; Geriatric; Health Services; Interdisciplinary Care; Lithium; Nephrogenic Diabetes Insipidus; Nephrology; Psychiatry; Renal Diseases; Renal Failure

$64,827

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Frequent collaborators

Medicine/Nephrology
Nephrology
Medicine
Health Research Methods, Evidence, and Impact
Research Institute
Internal Medicine
Cardiology
Other

Co-authors at University of Toronto, colored by department. Thicker lines mean more shared papers; select anyone to open their profile and their own map.

Ron Wald

Nephrology

63 shared papers, latest 2026

Amit Garg

Health Research Methods, Evidence, and Impact

37 shared papers, latest 2025

Jeffrey Perl

Medicine/Nephrology

22 shared papers, latest 2026

Amber Molnar

Medicine

13 shared papers, latest 2025

Ziv Harel

Faculty

7 shared papers, latest 2024

Kevin Yau

Faculty

5 shared papers, latest 2026

William Beaubien-Souligny

Faculty

5 shared papers, latest 2023

William Beaubien-Souligny

Medicine/Nephrology

5 shared papers, latest 2023

Deborah Zimmerman

Faculty

5 shared papers, latest 2019

Ron Wald

Medicine/Nephrology

5 shared papers, latest 2022

Paul Dorian

Cardiology

4 shared papers, latest 2025

Rahul Chanchlani

Population Health Research Institute (PHRI) (Joint Institute)

4 shared papers, latest 2025

Andrea Gruneir

Faculty

4 shared papers, latest 2020

Navdeep Tangri

Internal Medicine

4 shared papers, latest 2025

Gihad Nesrallah

Research Institute

4 shared papers, latest 2025

Ayub Akbari

Department of Medicine

3 shared papers, latest 2023

Muhammad Mamdani

Department of Laboratory Medicine and Pathobiology

3 shared papers, latest 2016

Soham Rej

Faculty

3 shared papers, latest 2020

Natalie Dayan

Faculty

3 shared papers, latest 2026

Howard Berger

Obstetrics and Gynecology

3 shared papers, latest 2023

Michael Walsh

Medicine

3 shared papers, latest 2026

Chaim Bell

Faculty

3 shared papers, latest 2017

Karen Burns

Health Research Methods, Evidence, and Impact

3 shared papers, latest 2015

Scott Brimble

Medicine

3 shared papers, latest 2023

Matthew Weir

Medicine/Nephrology

3 shared papers, latest 2025

Adeera Levin

Nephrology

3 shared papers, latest 2025

Pietro Ravani

Community Health Sciences

3 shared papers, latest 2025

Marisa Battistella

Faculty

2 shared papers, latest 2025

Michael Zappitelli

Pediatrics

2 shared papers, latest 2023

Kazuyoshi Aoyama

Department of Anesthesiology and Pain Medicine

2 shared papers, latest 2020

Edward Clark

Department of Medicine

2 shared papers, latest 2025

Eitan Amir

Department of Medicine

1 shared papers, latest 2018

Rahim Moineddin

Department of Family and Community Medicine

1 shared papers, latest 2012

Gustavo Saposnik

Department of Medicine

1 shared papers, latest 2017

Karthik Tennankore

Internal Medicine

1 shared papers, latest 2025

Alejandro Lazo-Langner

Department of Epidemiology and Biostatistics

1 shared papers, latest 2017

Marc Carrier

Department of Medicine

1 shared papers, latest 2020

Grégoire Le Gal

Department of Medicine

1 shared papers, latest 2021

Darren Yuen

Faculty

1 shared papers, latest 2016

Rahul Chanchlani

Faculty

1 shared papers, latest 2022

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their CIHR grant from 2025

Subject: Prospective PhD student: Apixaban Dear Professor Harel, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Glucagon-like Peptide-1 Receptor Agonists and Risk of Major Adverse Cardiovascular Events in Patients With CKD." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your CIHR-funded project "Strategies for the management of Atrial Fibrillation in patiEnts receiving Dialysis 2 (SAFE-D2)" (2025), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]