Alerta De Seguridad para Laboratory tests using biotin technology assay methodologies to promote binding with specific protein biomarkers.

Safety alert

2482

2018-02-08

Brazil

ANVISA

http://www.anvisa.gov.br/sistec/alerta/consultaralerta.asp

The us food and drug administration (fda) has published in its internet portal report that biotin (or vitamin b7) may interfere with laboratory test results, including the troponin test for the diagnosis of myocardial infarction . according to the document, biotin may lead to falsely high or falsely low results, depending on the test, thus impacting the diagnosis and consequently the patient's treatment. according to the fda, one patient died - with high levels of biotin - whose results from the troponin test were falsely low and, consequently, affected their treatment. the consumption of high levels of biotin is common through dietary supplements, as well as in some treatments for patients with pathologies, such as multiple sclerosis. it is possible that doctors are unaware of the patient's consumption of biotin, just as people may not know biotin is present in the dietary supplements they consume. supplements used to benefit the skin, hair and nails.

This is a Safety Alert, which highlights some recommendations: 1. TO THE DOCTOR: (i). Keep in mind that multivitamin compounds, including those used by pregnant women, as well as supplements for hair and nail growth and those that benefit the skin, may contain Biotin; (ii). Check with your patients if they consume diet products containing Biotin and advise them on the indicated products; Notify the clinical laboratory if the patient is taking Biotin supplement; (iii). If the laboratory results are not compatible with the patient 's clinic, investigate the patient' s use of Biotin, (iv). Notify ANVISA and the product registration holder of incorrect laboratory test results that have or have not caused an adverse event in the patient.//2. FOR ANALYSIS LABORATORIES: (i). Identify whether biotin-based assays are used and maintain contact with patients undergoing these assays, as well as with their physicians; (ii) .Question the patient - and record the answer in his / her form - if he / she consumes products that may contain Biotin or if they are treated with high doses of this vitamin of the B complex; (iii). In case of doubts about the interference of Biotin in tests in use in the laboratory, consult the company that holds your registry; (iv). Notify ANVISA and the product registration holder of incorrect lab results (falsely high or falsely low) that have or have not caused an adverse event in the patient. FOR THE CONSUMER: (i). Tell your doctor if you are using vitamin supplements or are being treated on a high dose of Biotin; (ii). Remember that Biotin can be found in multivitamins (including prenatal) and supplements for skin and hair and nail growth; (iii). If you have undergone a laboratory examination and suspected biotin interference in your result, please notify ANVISA and the product registration holder.