The customer suspects falsely depressed architect cea and architect ca 19-9xr results for a patient.The following data was provided: on (b)(6)2021: cea: 11.3 ng/ml / ca19-9 result: 246.2 u/ml on (b)(6)2022: cea: 16.3 ng/ml / ca 19-9 result: 166.6 u/ml on (b)(6)2022 sid(b)(6): cea result: 4.38 ng/ml, ca 19-9 result: 22.32 u/ml retested on (b)(6)2022: cea result: 4.42 ng/ml, ca 19-9 result: 26.5 u/ml the patient¿s clinical history is unknown and doctor suspects may¿s results are low.There was no impact to patient management reported.
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The complaint investigation for falsely depressed architect cea results included a search for similar complaints, and the review of complaint text, trending data, labeling, and device history records.Return testing was not performed as returns were not available.A review of tracking and trending did not identify any related trends for the lot number 37456fn00 and the complaint issue.Data and information provided by the customer were reviewed and support the complaint issue without indication for any additional issue.The ticket search by lot indicates that the reagent lot performs as expected for this product.Customer field data was used to assess the performance of the architect cea assay using worldwide data.The median patient population result for lot 37456fn00 is comparable with all other lots in the field and falls within established baselines, confirming no systemic issue for the lot.The device history records were reviewed and did not identify any non-conformances or deviations associated with the lot number and complaint issue.Labeling was reviewed and adequately addresses the issue under review.Based on the investigation, no systemic issue or product deficiency for architect cea reagent lot 37456fn00 was identified.
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