on Tuesday, 07 April 2020. Posted in Homepage

Direct Oral Anticoagulants (DOACs) are a relatively new class of anticoagulants that have several advantages over traditional anticoagulation agents such as Warfarin. This includes rapid onset of action, few drug interactions and predictable pharmacokinetics which result in no requirement for routine laboratory monitoring. As a result, the use of DOAC’s in clinical practice has grown. The DOAC’s are problematic for the laboratory as they have been reported to interfere with most coagulation tests to varying degrees.

Currently when testing a patient for a thrombophilia a patient is required to be free from anticoagulation to obtain a valid result, however due to the risk of thrombosis these patients are also required to be anticoagulated. This paradox is problematic for both the laboratory and the clinician.

DOAC-Stop tablets can be used to efficiently remove all types of DOACs including dabigatran, apixaban, rivaroxaban and edoxaban, from test plasmas with minimal effect on plasma proteins involved in the clotting mechanism. This will allow clinicians to get an accurate result while the patient is anticoagulated with a DOAC, preventing the need for cessation for an accurate result and therefore reducing the risk of thrombosis.

If you are requesting a thrombophilia or lupus anticoagulant screen and your patient is on a DOAC, please state clearly on the request form, together with which anticoagulant, so DOAC Stop can be applied.


Leave a comment

Please login to leave a comment.

The laboratories at Heartlands Hospital, Good Hope Hospital and Solihull Hospital form part of the services provided by University Hospitals Birmingham and are UKAS (United Kingdom Accreditation Service) accredited to the ISO 15189:2012 standard. For a list of accredited tests and other information please visit the UKAS website using the following link:

  • Heartlands, Good Hope and Solihull Hospital pathology laboratories are a UKAS accredited medical laboratory No.8217
  • United Kingdom Health Security Agency laboratory is a UKAS accredited medical laboratory No.8213

Tests not appearing on the UKAS Schedule of Accreditation currently remain outside of our scope of accreditation. However, these tests have been validated to the same high standard as accredited tests and are performed by the same trained and competent staff.

For further test information, please visit the test database:

Protection of personal information - Laboratory Medicine comply with the Trust Data Protection policy and have procedures in place to allow the Directorate and its employees to comply with the Data Protection act  1998 and associated best practice and guidance.

For further information contact Louise Fallon, Quality Manager, 0121 424 1235