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Thelen MHM, van Schrojenstein Lantman M, Boursier G, Vanstapel F, Panteghini M. In reply to: Limitations in using the EFLM WG-A/ISO approach for assessment of reagent lot variability. Clin Chem Lab Med 2023; 61:e218-e220. [PMID: 37261942 DOI: 10.1515/cclm-2023-0516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Accepted: 05/18/2023] [Indexed: 06/03/2023]
Affiliation(s)
- Marc H M Thelen
- Department of Laboratory Medicine, Radboud University Medical Centre, Nijmegen, the Netherlands
- Foundation for Quality Assurance in Laboratory Medicine (SKML), Nijmegen, the Netherlands
| | | | - Guilaine Boursier
- Department of Genetics, Rare Diseases and Personalized, Medicine Rare Diseases and Autoinflammatory Unit, CHU Montpellier, University of Montpellier, Montpellier, France
| | - Florent Vanstapel
- Laboratory Medicine, University Hospital Leuven, Leuven, Belgium
- Department of Public Health, Laboratory Medicine, Biomedical Sciences Group, University Hospital Leuven, Leuven, Belgium
| | - Mauro Panteghini
- Department of Biomedical and Clinical Sciences "Luigi Sacco", Research Centre for Metrological Traceability in Laboratory Medicine (CIRME), University of Milan, Milan, Italy
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Kavsak PA. Lot-to-lot bias for high-sensitivity cardiac troponin I concentrations ≥1000 ng/L. Clin Chem Lab Med 2023; 61:e105-e107. [PMID: 36649464 DOI: 10.1515/cclm-2023-0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Accepted: 01/10/2023] [Indexed: 01/19/2023]
Affiliation(s)
- Peter A Kavsak
- McMaster University, Hamilton, ON, Canada.,Hamilton Health Sciences, Hamilton, ON, Canada
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Loh TP, Markus C, Tan CH, Tran MTC, Sethi SK, Lim CY. Lot-to-lot variation and verification. Clin Chem Lab Med 2022; 61:769-776. [PMID: 36420533 DOI: 10.1515/cclm-2022-1126] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Accepted: 11/14/2022] [Indexed: 11/24/2022]
Abstract
Abstract
Lot-to-lot verification is an integral component for monitoring the long-term stability of a measurement procedure. The practice is challenged by the resource requirements as well as uncertainty surrounding experimental design and statistical analysis that is optimal for individual laboratories, although guidance is becoming increasingly available. Collaborative verification efforts as well as application of patient-based monitoring are likely to further improve identification of any differences in performance in a relatively timely manner. Appropriate follow up actions of failed lot-to-lot verification is required and must balance potential disruptions to clinical services provided by the laboratory. Manufacturers need to increase transparency surrounding release criteria and work closer with laboratory professionals to ensure acceptable reagent lots are released to end users. A tripartite collaboration between regulatory bodies, manufacturers, and laboratory medicine professional bodies is key to developing a balanced system where regulatory, manufacturing, and clinical requirements of laboratory testing are met, to minimize differences between reagent lots and ensure patient safety. Clinical Chemistry and Laboratory Medicine has served as a fertile platform for advancing the discussion and practice of lot-to-lot verification in the past 60 years and will continue to be an advocate of this important topic for many more years to come.
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Affiliation(s)
- Tze Ping Loh
- Department of Laboratory Medicine , National University Hospital , Singapore , Singapore
| | - Corey Markus
- Flinders University International Centre for Point-of-Care Testing , Flinders Health and Medical Research Institute , Adelaide , SA , Australia
| | - Chin Hon Tan
- Department of Industrial and Systems Engineering , National University of Singapore , Singapore , Singapore
| | - Mai Thi Chi Tran
- Faculty of Medical Technology , Hanoi Medical University , Hanoi , Vietnam
- Department of Clinical Biochemistry , National Children’s Hospital , Hanoi , Vietnam
| | - Sunil Kumar Sethi
- Department of Laboratory Medicine , National University Hospital , Singapore , Singapore
| | - Chun Yee Lim
- Engineering Cluster , Singapore Institute of Technology , Singapore , Singapore
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