Joseph R. Shaw, MD MSc FRCPC DRCPSC is a hematologist and thrombosis medicine specialist in the Department of Medicine at The Ottawa Hospital. He is an Associate Scientist at the Ottawa Hospital Research Institute and an Assistant Professor in the Faculty of Medicine at the University of Ottawa.
He completed his undergraduate studies in Biochemistry at McGill University, for which he was awarded the Major Hiram Mills Medal.
He then completed his M.D., Internal Medicine and Hematology training at the University of Ottawa. He completed Royal College of Physicians and Surgeons AFC training in Adult Thrombosis Medicine through the Thrombosis Unit at The Ottawa Hospital and a Master of Science in Epidemiology at the University of Ottawa. His thesis dissertation was on the utility of thrombin generation assays for measuring the anticoagulant effects of direct oral anticoagulants and anticoagulation reversal.
His research is focused on evaluating anticoagulation reversal strategies and the perioperative management of anticoagulants. He is interested in studying the clinical applications of thrombin generation assays, including evaluating anticoagulant pharmacodynamics and the effects of anticoagulation reversal agents.
Dr. Shaw is currently Chair of the CanVECTOR National Thrombosis Seminars Committee and Co-Chair of the ISTH SSC on Perioperative and Critical Care Hemostasis and Thrombosis. His research on biomarker-enhanced VTE risk stratification in patients with cancer was awarded the Canadian Hematology Society’s John H. Crookston Award in 2019 and his publication on the perioperative management of anticoagulation among patients with cancer-associated VTE was recognized with the Journal of Thrombosis and Haemostasis’ Editors Award in 2020.
In 2024, he was awarded the Canadian Hematology Society's Early Career Award.
PAUSE-2 (CIHR Project Grant = $845,326) - Dr. Shaw and Dr. Douketis (McMaster University) are Co-Principal Investigators for the PAUSE-2 randomized controlled trial. PAUSE-2 is an international, multicenter trial comparing perioperative DOAC management strategies (PAUSE vs ASRA) in patients having high-bleed-risk surgery.
ACE-HIGH (CIHR Project Grant = $810,900) - Dr. Shaw and Dr. Marc Carrier are co-Principal Investigators for the ACE-HIGH study (Active Cancer Patients Having Cancer-Related Invasive Procedures or Surgery and Needing Perioperative Management of Anticoagulation Therapy - A Prospective Management Cohort Study).
GAUGE (PSI Foundation = $100,000) - Dr. Shaw is the lead investigator for a prospective observational study (GAUGE) evaluating the effects of prothrombin complex concentrates on thrombin generation parameters in patients with direct factor Xa inhibitor-associated bleeding
1. Douketis J, Li N, St John M, Nixon J, Moffat K,
Shaw JR, Syed S, Schulman S, Gross PL, Spyropoulos AC. Perioperative Management of Direct Oral Anticoagulants in Patients Having a High-Bleed-Risk Surgery or Procedure: the PAUSE-2 Pilot Study.
J Thromb Haemost 2025 [ACCEPTED].
2. Shaw JR and Levy JH.
Emergent Cardiac Surgery, Andexanet Alfa-Induced Heparin Resistance, and Prothrombotic Effects: Coagulation Chaos?
J Thromb Haemost 2025 [ACCEPTED]
3. Shaw JR, Li N, Grussé M, Van Dreden P, St John M, Nixon J, Spyropoulos AC, Schulman S, Levy JH, Carrier M, Douketis JD. Influence of DOAC Levels and Thrombin Generation on Postoperative Bleeding [SONAR]: A Nested Case-Control Study. Thromb Haemost 2025 Feb Online Ahead of Print doi: 10.1055/a-2521-0923
4. Shaw JR, Nopp S, Stavik B, Youkhana K, Michels AL, Kennes S, Rak J, ten Cate H. Thrombosis, Translational Medicine, and Biomarker Research: Moving the Needle.
J Am Heart Assoc 2024; 24:e038782. doi:10.1161/JAHA.124.038782.
5. Shaw JR, Almujalli A, Xu Y, Levy JH, Schulman S, Siegal D, Dowlatshahi D, Tokessy M, Buyukdere H, Carrier M, Castellucci LA. Prothrombin complex concentrate for direct factor Xa inhibitor-associated bleeding or before urgent surgery. Thromb Res 2024; 243: 109172. doi: 10.1016/j.thrombres.2024.109172. Epub 2024 Sep 24.
6. Levy JH,
Shaw JR, Castellucci LA, Connors JM, Douketis J, Lindhoff-Last E, Rocca B, Samama CM, Siegal D, Weitz JI. Reversal of direct oral anticoagulants: Guidance from the SSC of the ISTH.
J Thromb Haemost. 2024; Jul 17:S1538-7836(2)00426-4 Online ahead of print.
7. Hrubesz G, Dwyer K, McIsaac D, Sood M, Clark E, Douketis J, Carrier M,
Shaw JR. Perioperative Management of Apixaban in Patients with Advanced CKD Undergoing a Planned Invasive Procedure.
Blood Adv. 2024 Feb 13;8(3):732-735.
8. Shaw JR, Li N, Abdulrehman J, Stella SF, St John M, Nixon J, Spyropoulos AC, Schulman S, Wang TF, Carrier M, Douketis JD. (2023) Periprocedural Management of Direct Oral Anticoagulants in Patients with Atrial Fibrillation and Active Cancer. J Thromb Haemost. 2024;22(3): 727-737. doi:10.1016/j.jtha.2023.10.082. PMID: 37949316
9. Shaw JR,
James T, Douxfils J, Dargaud Y, Levy JH, Brinkman HJM, Shorr R, Siegal D,
Castellucci LA, Gross P, Khalife R, Sperling C, Page D, Fergusson D, Carrier M.
(2023) Thrombin generation, bleeding and hemostasis in humans: Protocol for a
scoping review of the literature.
PLoS One. 2023 Nov 1;18(11)
10. Shaw JR, Castellucci LA., Siegal D., Carrier M. DOAC-associated bleeding, hemostatic strategies and thrombin generation assays - a review of the literature.
J Thromb Haemost. 2023 Mar;21(3):433-452
11. Aziz J., Wang TF., Siegal D., Douketis J., Le Gal G., Carrier M.,
Shaw JR. Thrombotic and bleeding outcomes following the perioperative interruption of anticoagulation among patients with nonvalvular atrial fibrillation and active cancer.
J Thromb Haemost. 2023 Apr;21(4):933-943.
12. Shaw JR, Li N., Nixon J., Moffat KA., Spyropoulos AC., Schulman S., Douketis JD. Coagulation assays and direct oral anticoagulant levels among patients having an elective surgery or procedure.
J Thromb Haemost. 2022 Dec;20(12):2953-2963
13.Shaw JR, Kumar V., Mallick R., Carrier M., Ilich A., Key N., Wells P. (2020) Biomarker-enhanced VTE risk stratification in ambulatory patients with cancer.
Thromb Res; 196: 437-443
14.Shaw JR, Li N., Vanassche T., Coppens M., Spyropoulos A.C., Syed S., Radwi M., Duncan J., Schulman S., Douketis J. (2020) Predictors of preprocedural direct oral anticoagulant levels in patients having an elective surgery or procedure.
Blood Advances; 4(15): 3520-3527
15. Shaw JR, Kaplovitch E., Douketis J. (2020) Periprocedural management of oral anticoagulation.
Med Clin North Am; 104(4): 709-726
16. Shaw JR., Siegal D.M. (2020). Prothrombin complex concentrates for DOAC-associated bleeding, global coagulation assays, and assessments of clinical hemostasis: How to gauge the impact?
Res Pract Thromb Haemost; 4(5): 677-679
17. Shaw JR, Douketis J., Le Gal G., Carrier M (2019). Periprocedural interruption of anticoagulation in patients with cancer-associated venous thromboembolism: An analysis of thrombotic and bleeding outcomes.
J Thromb Haemost; 17(7): 1171-1178
18. Shaw JR, Siegal D.M. (2018). Pharmacological reversal of the direct oral anticoagulants – A comprehensive review of the literature.
Res Pract Thromb Haemost; 2:251-265
