Haematex was founded by Thomas Exner PhD, a well known blood coagulation expert specialising in coagulation methods. With over 35 years experience, he has has made numerous presentations at haematology meetings, published over 100 papers, and has several patents. He is responsible for the one stage dilute Russells Viper venom test (dRVT) that is widely used for detecting lupus anticoagulants. He worked for 20 years in Haematology labs at Royal Prince Alfred and Westmead Hospitals in Sydney, becoming increasingly involved with research, quality control matters and diagnostic test development in the blood coagulation area. His special area of interest includes prothrombotic conditions, detection of which may predict strokes and heart attacks. He now runs his own company Haematex Research which has patented and developed the XACT test for assessing hypercoagulability. Haematex Research has collaborations with various international diagnostic companies and provides specialised consulting services.




Testing for new oral anticoagulants with LA-resistant Russells viper venom reagents. An in vitro study
Thromb Haemost. 2013 Apr;109(4):762-5. doi: 10.1160/TH12-11-0842. Epub 2013 Jan 31.
Thomas Exner, Lisa Ellwood, Jenny Rubie, Aileen Barancewicz


Clinical evaluation of a new functional test for detection of plasma procoagulant phospholipids
Blood coagulation & fibrinolysis: an international journal in haemostasis and thrombosis. 08/2009; 20(7):494-502. DOI: 10.1097/MBC.0b013e32832c5e51
Patrick van Dreden · Aurélie Rousseau · Sylviane Fontaine · Barry J Woodhams · Thomas Exner


Increased procoagulant phospholipid activity in blood from patients with suspected acute coronary syndromes: A pilot study
Blood Coagulation and Fibrinolysis 08/2005; 16(5):375-9. DOI:10.1097/01.mbc.0000173465.45613.a3.
Thomas Exner · Joanne E Joseph · David Connor · Joyce Low · David D F Ma


A new activated factor X-based clotting method with improved specificity for procoagulant phospholipid
Blood Coagulation and Fibrinolysis 01/2004; 14(8):773-9. DOI:10.1097/01.mbc.0000061366.73802.df
Thomas Exner · Joanne Joseph · Joyce Low · David Connor · David Ma


Conceptions and Misconceptions in Testing for Lupus Anticoagulants
Journal of Autoimmunity 10/2000; 15(2):179-83. DOI:10.1006/jaut.2000.0392
Thomas Exner


Detecting APC-resistant factor V
Blood Coagulation and Fibrinolysis 10/1999; 10(6):359-66. DOI:10.1097/00001721-199909000-00006
D B Rylatt · C Hohnen-Behrens · R L Pilgrim · L E Dickeson · M Neal · T Exner ·

A monoclonal antibody against prothrombin fragment 1 behaves like a lupus anticoagulant (Letter)
Thrombosis and Haemostasis 04/1999; 81(3):470-1.
T Exner · M Kraus ·


Diagnostic methodologies for circulating anticoagulants
Thrombosis and Haemostasis 08/1995; 74(1):338-44.
T Exner

Use of a simplified dilute Russell's viper venom time (DRVVT) confirms heterogeneity among 'lupus anticoagulants'
Blood Coagulation and Fibrinolysis 09/1990; 1(3):259-66.
T Exner · G Papadopoulos · J Koutts

Characterisation and some properties of the protein C activator from Agkistrodon Contortrix Contortrix venom.
Thrombosis and Haemostasis 03/1988; 59(1):40-4.
T Exner · R Vaasjoki ·

Detection of specific proenzyme activators in snake venoms by a new immunoabsorbant-chromogenic substrate method
Biochimica et Biophysica Acta 01/1986; 832(3):351-6. DOI:10.1016/0167-4838(85)90270-5
Thomas Exner · Beth Cotton · Merlin Howden ·