Advancing excellence in laboratory medicine for better healthcare worldwide

Standardization of Thyroid Function Tests (C-STFT)


NamePositionCountryTermTime in Office
H. VesperChairUS2nd2021 01 - 2023 12
S. L. AndersenMemberDK1st2021 05 - 2023 12
A. HishinumaMemberJP2nd2021 01 - 2023 12
V. RaverotMemberFR1st2020 03 - 2022 12
K. Van UytfangheMemberBE2nd2021 01 - 2023 12
I. ErlundConsultantFI
M. RottmannConsultantDE
L. ThienpontConsultantBE
H. VölzkeConsultantDE

In the previous terms, the committee developed the basis needed to implement standardization of thyroid function tests. Specifically, the committee:

  • developed reference measurement systems (reference materials/reference methods) to establish traceability of free thyroid hormone and TSH assays,
  • provided an infrastructure for procurement of serum panels,
  • demonstrated that the traceable assays can use a common reference interval,
  • informed the clinical and research community about the importance of standardized tests.

Building on these accomplishments, the current committee set the following terms of reference:

Terms of Reference:

  • Establish a system to maintain traceability of free thyroid hormone and TSH measurements.
  • Coordinate programs to evaluate free thyroid and TSH assays with regards to their analytical performance.
  • Develop reference intervals for free thyroid hormones and TSH.
  • Liaise with key stakeholders to promote the use of the standardized assays in routine clinical practice and public health, to ensure analytical performance requirements meet clinical needs, and to help with developing and establishing reference intervals. 

Current Projects:

  • Establishment of a reference laboratory network
  • Develop and establish follow-up panel for TSH
  • Collaborate with relevant organizations to ensure that free thyroid hormones and TSH are standardized consistently
  • Collaborate with stakeholders to define reference populations and plan study to establish reference intervals
  • Provide information and training to stakeholders about the importance of standardized thyroid function assays, and support organizations working on promoting high quality of thyroid function tests


Resources made available by the C-STFT are available here

Read more at: 

List of Corresponding Members, nominated by National Societies

NameFull and Affiliate Member Societies
Paul WilliamsAustralasian Association for Clinical Biochemistry and Laboratory Medicine (AACB)
Valentina VidranskiCroatian Society of Medical Biochemistry and Laboratory Medicine
Radovan BílekCzech Society of Clinical Biochemistry (CSKB)
Nino BekaiaLaboratory Medicine Association of Georgia (GLMA)
Poornima ManjrekaAssociation of Clinical Biochemists of India (ACBI)
Ashishkumar AgravattAssociation of Medical Biochemists of India (AMBI)
M. Reza BakhtiariIranian Association of Clinical Laboratory Doctors
Suprita GuptaNepalese Association for Clinical Chemistry (NACC)
Simeon AdebisiAssociation of Clinical Chemists Nigeria (ACCN)
Jens BergNorwegian Society of Medical Biochemistry
Sheharbano ImranPakistan Society of Chemical Pathologists
Lakminda ThilakarathnaAssociation for Clinical Biochemistry, Sri Lanka
Yasemin Ucal Turkish Biochemical Society (TBS)
David HalsallAssociation for Clinical Biochemistry (ACB) - UK

List of Corresponding Members, nominated by Corporate Members

NameCorporate Member
Gordon AveryABBOTT Diagnostics
Zengming JinAUTOBIO Diagnostics
Stephan FellnerDIASYS Diagnostic Systems
Laura-Leena KiiskinenMEDIX BIOCHEMICA
Carole DauscherSIEMENS Healthineers
Jiazhen ShenSNIBE

Committee Chair's contact

Director, Clinical Standardization Programs
Chief, Protein Biomarker and Lipid Reference Laboratory
Clinical Chemistry Branch
Division of Laboratory Sciences
Centers for Disease Control and Prevention
4770 Buford Hwy NE MS F25
Atlanta, GA 30341
E-mail: and

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