Therapeutic Drug Monitoring (TDM)
"Our therapeutic drug monitoring proficiency testing scheme - helping your lab to meet measurement challenges" Therapeutic Drug Monitoring consists of the measurement of specific drug concentrations 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.
TDM, AXIO's Therapeutic Drugs Monitoring proficiency testing programme, provides independent performance assessment for labs undertaking the routine quantification of a wide range of anti-epileptic and other therapeutic drugs.
The operation of the TDM 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.
TDM, AXIO's Therapeutic Drugs Monitoring proficiency testing programme, provides independent performance assessment for labs undertaking the routine quantification of a wide range of anti-epileptic and other therapeutic drugs.
The operation of the TDM 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.
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{{ "Please see individual products for specific accreditation status" | truncate(70) }} See our accreditations
ISO/IEC 17043
ISO 9001
Scheme Information
Round Dates
Round
Despatch Date
Reporting Deadline
TM268
19 January 2026
23 February 2026
TM269
19 January 2026
23 March 2026
TM270
19 January 2026
20 April 2026
TM271
27 April 2026
01 June 2026
TM272
27 April 2026
29 June 2026
TM273
27 April 2026
27 July 2026
TM274
20 July 2026
24 August 2026
TM275
20 July 2026
21 September 2026
TM276
20 July 2026
19 October 2026
TM277
26 October 2026
30 November 2026
TM278
26 October 2026
04 January 2027
TM279
26 October 2026
25 January 2027
Scheme Documents
48-hour USA dispatch time
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{{ getAccreditationDisplayName(product) }} Accredited within the boundaries of LGC’s fixed and flexible scope of UKAS accreditation. Further details can be found in the scheme description. ISO/IEC 17043 Specifies general requirements for the competence of providers of proficiency testing schemes and for the development and operation of proficiency testing schemes. Find out more. The characterisation of this reference material was undertaken in accordance with the internationally recognised standard for the General Requirements for the Competence of Testing and Calibration Laboratories, ISO 17025 – required for the generation of valid results. Find out more. {{ getAccreditationDisplayName(product) }} Produced in accordance with internationally recognised requirements for the development and production of reference standards and for the competence of reference standard manufacturers. Find out more.
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{{ getAccreditationDisplayName(product) }} Accredited within the boundaries of LGC’s fixed and flexible scope of UKAS accreditation. Further details can be found in the scheme description. ISO/IEC 17043 Specifies general requirements for the competence of providers of proficiency testing schemes and for the development and operation of proficiency testing schemes. Find out more. The characterisation of this reference material was undertaken in accordance with the internationally recognised standard for the General Requirements for the Competence of Testing and Calibration Laboratories, ISO 17025 – required for the generation of valid results. Find out more. {{ getAccreditationDisplayName(product) }} Produced in accordance with internationally recognised requirements for the development and production of reference standards and for the competence of reference standard manufacturers. Find out more.
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Short shelf life. Check that the expiry date is fit for your purposes.
This product will require custom synthesis. Please submit a quote request and our team will provide you with a price and lead time as soon as possible
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This product will require custom synthesis. Please submit a quote request and our team will provide you with a price and lead time as soon as possible
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Restrictions may apply. Additional documentation may be required such as permits or BSL certification. Controlled product. We may require documentation to meet relevant regulations. Additional handling fees may apply and lead times may vary.
Made to order. Only produced when an order is placed.
Freight restricted. {{ product.freightRestrictionTooltip }}
Short shelf life. Check that the expiry date is fit for your purposes.
This product will require custom synthesis. Please submit a quote request and our team will provide you with a price and lead time as soon as possible
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{{ getAccreditationDisplayName(product) }} Accredited within the boundaries of LGC’s fixed and flexible scope of UKAS accreditation. Further details can be found in the scheme description. ISO/IEC 17043 Specifies general requirements for the competence of providers of proficiency testing schemes and for the development and operation of proficiency testing schemes. Find out more. The characterisation of this reference material was undertaken in accordance with the internationally recognised standard for the General Requirements for the Competence of Testing and Calibration Laboratories, ISO 17025 – required for the generation of valid results. Find out more. {{ getAccreditationDisplayName(product) }} Produced in accordance with internationally recognised requirements for the development and production of reference standards and for the competence of reference standard manufacturers. Find out more.
Restrictions may apply. Additional documentation may be required such as permits or BSL certification. Controlled product. We may require documentation to meet relevant regulations. Additional handling fees may apply and lead times may vary.
Made to order. Only produced when an order is placed.
Freight restricted. {{ product.freightRestrictionTooltip }}
Short shelf life. Check that the expiry date is fit for your purposes.
This product will require custom synthesis. Please submit a quote request and our team will provide you with a price and lead time as soon as possible
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