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Therapeutic Drugs (TDM)

Who is the scheme designed for?

The AXIO Therapeutic Drugs Monitoring (TDM) proficiency testing scheme provides independent performance assessment for the routine quantification of a wide range of anti-epileptic and other therapeutic drugs.

The industry challenges

TDM is a measurement of specific drug concentration levels at timed intervals in patients, usually through blood/serum samples, and is necessary where control of drug concentrations is required to achieve optimum treatment for the patient, or where there is a narrow range between the therapeutic and toxic levels.

AXIOs solution for our partners

LGC AXIO Proficiency Testing recognises the challenges within your industry. This is why we have developed the AXIO TDM scheme. The operation of this scheme is supported by an Advisory Group consisting of members of professional bodies, scheme participants, and others experienced in the field. The scheme reports on the performance of UK participants (who have clinical responsibilities) to the National Quality Assurance Advisory Panels for Chemical Pathology.

LGC AXIO – Driving Quality Together.

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{{ "Please see individual products for specific accreditation status" | truncate(70) }} See our accreditations

ISO/IEC 17043
ISO 9001

Scheme Information


Despatch Date

Reporting Deadline


18 January 2021

15 February 2021


18 January 2021

15 March 2021


18 January 2021

12 April 2021


19 April 2021

17 May 2021


19 April 2021

14 June 2021


19 April 2021

12 July 2021


26 July 2021

23 August 2021


26 July 2021

20 September 2021


26 July 2021

18 October 2021


18 October 2021

15 November 2021


18 October 2021

13 December 2021


18 October 2021

17 January 2022

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