[49568269]
A customer in (b)(6) notified biomerieux regarding discrepant results with the vidas toxo igg ii test kit (reference 30210) the customer reports that two samples were previously tested by a laboratory where the pure sample was tested at dilutions of 1/5 and 1/10; these results, per the customer, demonstrated that the performance did not produce an acceptable level of linearity. The customer reports testing previous samples on a new batch of product using a new vidasinstrument; this testing resulted in a confirmation of the previous non-linear results. In this incident, the customer reported the death of a patient related to congenital toxoplasmosis; however, the physician indicated the death was not related to results obtained by the vidasoxo igg ii, but instead related to underlying problems the patient had. An internal biomerieux investigation will be initiated.
Patient Sequence No: 1, Text Type: D, B5
[55006065]
This report was initially submitted following notification that a customer in (b)(6) reported discrepant avidity results in association with the vidas toxo igg (txg) ii assay. Biom? Rieux investigation was conducted. The issue can occur when it is necessary to bring the sample titer to 15 ui/ml, as stated in package insert of vidas toxo igg avidity. Evaluation of the manufacturing batch record for the referenced lot indicated no anomaly or nonconformity associated with the batch. Internal testing demonstrated that: there is no issue with the sensitivity nor the specificity of the test. The vidas toxo igg ii is within the expected performance claimed in the package insert. In the vidas toxo igg ii application, some high titer samples may be underestimated when diluted but there is no risk of false negative results. In the vidas toxo igg avidity application, the vidas system will display "invalid results" if the sample dilution is not optimal, but there is no risk of false avidity results. The investigation concluded the performance of vidas txg ii assay is within specifications.
Patient Sequence No: 1, Text Type: N, H10