An evaluation of the performance of the Point of Care Test iCHROMA™ AFP method: Precision and accuracy

Authors

  • John Bolodeoku JB Consulting (MDP) Limited, Cherwell Innovation Centre, Oxfordshire, UK
  • Olu Coker JB Consulting (MDP) Limited, Cherwell Innovation Centre, Oxfordshire, UK
  • Suman Bains JB Consulting (MDP) Limited, Cherwell Innovation Centre, Oxfordshire, UK
  • Chidi Anyaeche Pathaway Services Limited, Headlands House, Berkhamsted, UK
  • Tae Kyum Kim Boditech Med Inc., Chuncheon-si, Gangwon-do 24398, Korea

DOI:

https://doi.org/10.51496/jogm.v1.7

Keywords:

iCHROMA, AFP, RIQAS, comparison, accuracy

Abstract

The estimation of serum alpha-fetoprotein (AFP) is useful in the diagnosis and monitoring of primary hepatocellular carcinoma, hepatoblastoma, non-seminomatous testicular germ cell tumours and other germ cell tumours. The iCHROMA™ AFP is a lateral flow chromatography, fluorescence immunoassay (FIA) for the quantitative determination of AFP in serum or plasma. In this study, the Boditech iCHROMA™ AFP assay had a very good precision of 9.8%. It showed a very good correlation with the following 12 methods: Abbott Architect (r2 = 0.9705), BioMerieux VIDAS (r2 = 0.9717), Roche Cobas 6000/8000 (r2 = 0.9738), Siemens Centaur XP/XPT/Classic (r2 = 0.9654), Siemens/DPC/Immulite 2000/2500 (r2 = 0.9673), Siemens/DPC/Immulite 1000 (r2 = 0.9670), Beckman Dxl 600/800 (r2 = 0.9676), Roche Elecsys (r2 = 0.9683), Roche Cobas 4000/e411 (r2 = 0.9688), Roche Modular E170 (r2 = 0.9692), SNIBE Maglumi (r2 = 0.9457) and Ortho Vitros 3600/5600/ECi (r2 = 0.9714). In summary, the iCHROMA™ AFP, a rapid point of care test method, has a within-run precision value of less than 10% and excellent correlations with traditional laboratory methods. There is a consistent overestimation with the iCHROMA™ method, which must be taken into consideration when setting a reference range.

References

Galle PR, Foerster F, Kudo M, et al. Biology and significance of alpha-fetoprotein in hepatocellular carcinoma. Liver Int 2019; 39: 2214–29. doi: 10.1111/liv.14223 DOI: https://doi.org/10.1111/liv.14223

Johnson PJ. The role of serum alpha-fetoprotein estimation in the diagnosis and management of hepatocellular carcinoma. Clin Liver Dis 2001; 5(1): 145–59. doi: 10.1016/s1089-3261(05)70158-6. PMID: 11218912

Wald NJ, Cuckle H, Brock JH, Peto R, Polani PE, Woodford FP. Maternal serum-alpha-fetoprotein measurement in antenatal screening for anencephaly and spina bifida in early pregnancy. Report of U.K. collaborative study on alpha-fetoprotein in relation to neural-tube defects. Lancet 1977; 1(8026): 1323–32. doi: 10.1016/S0140-6736(77)92549-1. PMID: 69055.

Thomas RL, Blakemore KJ. Evaluation of elevations in maternal serum alpha-fetoproteIn: a review. Obstet Gynecol Surv 1990; 45(5): 269–83. PMID: 1692399.

Cowchock FS, Jackson LG. Diagnostic use of meternal serum alpha-fetoprotein levels. Obstet Gynecol 1976; 47(1): 63–8. PMID: 54892.

Weiss RR, Macri JN, Elligers K, Princler GL, McIntire R, Waldman TA. Amniotic fluid alpha-fetoprotein as a marker in prenatal diagnosis of neural tube defects. Obstet Gynecol 1976; 47(2): 148–51. PMID: 55990.

Jiang H, Du M, Dongzhong K. A rapid quantitative determination of AFP concentration with gold immunochromatographic strip. J Comp 2012; 7(12): 2868–75. doi: 10.4304/jcp.7.12.2868-2875 DOI: https://doi.org/10.4304/jcp.7.12.2868-2875

Bolodeoku J, Bains S, Chand V, Bacon R, Weir P, Miles V, et al. A screening evaluation of the Point of Care Test (POCT) i-CHROMA Prostate Specific Antigen (PSA) assay method in the community. Point Care J Near Patient Test Technol 2017; 16(2): 93–96. doi: 10.1097/POC.0000000000000131 DOI: https://doi.org/10.1097/POC.0000000000000131

Beltran L, Leach E, De Fonseka S, Bolodeoku J, Chinegwundoh F. An evaluation of the novel i-CHROMA point of care testing (POCT) method for the analysis of prostate specific antigen (PSA) in serum. Biomed J Sci Tech Res 2018; 9(4): 7237–41. doi: 10.26717/BJSTR.2018.09.001822 DOI: https://doi.org/10.26717/BJSTR.2018.09.001822

Bolodeoku J, Coker O, Bains S, Anyaeche C, Kim TK, Chinegwundoh F. The performance of the point of care test (POCT) i-CHROMA PSA method using internal and external quality assessment schemes: United Kingdom External Quality Assessment Service (UKNEQAS) and Randox International Quality Assessment Service (RIQAS). Curr Trends Med Diagn Meth: CTMDM-104 2018; 02. doi: 10.29011/CTMDM-104.100004

Bolodeoku J, Pinkney S, Bains S, Andrade ML. An assessment of automated Vitamin D measurement methods including a Point of Care Testing method, Boditech i-CHROMA™ using the Randox International Quality Assurance Scheme (RIQAS). Biomed J Sci Tech Res 2018; 3(4): 3457–643. doi: 10.26717/BJSTR.2018.03.000937 DOI: https://doi.org/10.26717/BJSTR.2018.03.000937

Bolodeoku J, Bains S, Pinkney S, Coker O, Fakokunde A. Comparison of the Point of Care Test (POCT), Boditech i-CHROMA™ Human Chorionic Gonadotrophin (HCG), Leutinizing Hormone (LH) and Follicle Stimulating Hormone (FSH) methods in serum with the other methods in the Randox International Quality Assessment Scheme (RIQAS). Clin Obstet Gynecol Reprod Med 2017; 3(4): 1–7. doi: 10.15761/COGRM.1000187 DOI: https://doi.org/10.15761/COGRM.1000187

Bains S, Anyaeche C, Wyatt A, Coker O, Bolodeoku J. Evaluation of Point of Care Test (POCT), i-CHROMA serum C-Reactive Protein (CRP) assay and Microalbumin Urine (MAU) methods. Ann Clin Lab Res 2017; 5(3): 192. doi: 10.21767/2386-5180.1000192 DOI: https://doi.org/10.21767/2386-5180.1000192

Bolodeoku J, Bains S, Pinkney S, Coker O, Kim TK, Anyaeche C. An evaluation of the Boditech i-CHROMA Thyroid Stimulating Hormone (TSH) method: precision and accuracy. Ann Clin Lab Res 2019; 7(2): 302.

Liang RL, Xu XP, Liu TC, Zhou JW, Wang XG, Ren ZQ, et al. Rapid and sensitive lateral flow immunoassay method for determining alpha fetoprotein in serum using europium (III) chelate microparticles-based lateral flow test strips. Anal Chim Acta 2015; 891: 277–83. doi: 10.1016/j.aca.2015.07.053. PMID: 26388387.

Published

28-12-2021

How to Cite

Bolodeoku, J., Coker, O. ., Bains, S. ., Anyaeche, C. ., & Kim, T. K. . (2021). An evaluation of the performance of the Point of Care Test iCHROMA™ AFP method: Precision and accuracy. Journal of Global Medicine, 1(2), e7. https://doi.org/10.51496/jogm.v1.7

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