{"title":"The invisible bridge: how harmonization closes the gap between impossible standardization and clinical necessity.","authors":"Kaiduo Xu, Xuanchang Bai, Haijian Zhao, Weiyan Zhou, Chuanbao Zhang","doi":"10.1016/j.cca.2025.120516","DOIUrl":null,"url":null,"abstract":"<p><p>Clinical laboratory testing plays a pivotal role in modern medicine, yet result variability across methods remains a major challenge. This review examines current approaches for achieving standardized and harmonized test results, with particular focus on ISO 17511's calibration hierarchies and ISO 21151 harmonization protocols. While standardization through metrological traceability to higher-order references remains ideal, many analytes require harmonization when reference materials or methods are unavailable. Key international organizations including IFCC, JCTLM, and ICHCLR have developed infrastructure supporting these efforts. Successful applications demonstrate significant improvements in inter-method comparability for various clinical assays. However, substantial challenges remain in achieving widespread harmonization, particularly in markets with high platform diversity. Addressing these limitations requires expanded development of commutable reference materials, advanced calibration algorithms, and robust quality monitoring systems. Future efforts focus on scalable solutions that maintain global comparability while addressing regional testing variations.</p>","PeriodicalId":10205,"journal":{"name":"Clinica Chimica Acta","volume":" ","pages":"120516"},"PeriodicalIF":2.9000,"publicationDate":"2025-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Clinica Chimica Acta","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1016/j.cca.2025.120516","RegionNum":3,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MEDICAL LABORATORY TECHNOLOGY","Score":null,"Total":0}
引用次数: 0
Abstract
Clinical laboratory testing plays a pivotal role in modern medicine, yet result variability across methods remains a major challenge. This review examines current approaches for achieving standardized and harmonized test results, with particular focus on ISO 17511's calibration hierarchies and ISO 21151 harmonization protocols. While standardization through metrological traceability to higher-order references remains ideal, many analytes require harmonization when reference materials or methods are unavailable. Key international organizations including IFCC, JCTLM, and ICHCLR have developed infrastructure supporting these efforts. Successful applications demonstrate significant improvements in inter-method comparability for various clinical assays. However, substantial challenges remain in achieving widespread harmonization, particularly in markets with high platform diversity. Addressing these limitations requires expanded development of commutable reference materials, advanced calibration algorithms, and robust quality monitoring systems. Future efforts focus on scalable solutions that maintain global comparability while addressing regional testing variations.
期刊介绍:
The Official Journal of the International Federation of Clinical Chemistry and Laboratory Medicine (IFCC)
Clinica Chimica Acta is a high-quality journal which publishes original Research Communications in the field of clinical chemistry and laboratory medicine, defined as the diagnostic application of chemistry, biochemistry, immunochemistry, biochemical aspects of hematology, toxicology, and molecular biology to the study of human disease in body fluids and cells.
The objective of the journal is to publish novel information leading to a better understanding of biological mechanisms of human diseases, their prevention, diagnosis, and patient management. Reports of an applied clinical character are also welcome. Papers concerned with normal metabolic processes or with constituents of normal cells or body fluids, such as reports of experimental or clinical studies in animals, are only considered when they are clearly and directly relevant to human disease. Evaluation of commercial products have a low priority for publication, unless they are novel or represent a technological breakthrough. Studies dealing with effects of drugs and natural products and studies dealing with the redox status in various diseases are not within the journal''s scope. Development and evaluation of novel analytical methodologies where applicable to diagnostic clinical chemistry and laboratory medicine, including point-of-care testing, and topics on laboratory management and informatics will also be considered. Studies focused on emerging diagnostic technologies and (big) data analysis procedures including digitalization, mobile Health, and artificial Intelligence applied to Laboratory Medicine are also of interest.