Tina-quant IgM Gen.2, Catalog Nos. 03507190190, 05220726190, 03507041190, 03507149190 Product Usage: Immunoturbidimetric assay for the quantitative in vitro determination of IgM in human serum and plasma on automated clinical chemistry analyzers analyzers.

New endogenous interference claims have been established for the following assays used on the cobas c 311 analyzer and the cobas c 501, 502, 701, 702, and Modular Analytics P/D modules which may have potential medical risk. ***Update: Cobas c111 and COBAS INTEGRA 400 plus analyzers are also impacted for BILT3 and LACT2 assays***

On 12/17/18, the firm distributed an Urgent Medical Device Correction letter to affected consignees. Customers were notified of the interference issues. The Limitations-interference section of the method sheets for the cobas c 311 analyzer and the cobas c 501, 502, 701, and 702 modules are being updated with the following claims: Bilirubin Total Gen.3 assay: Immunoglobulins: No significant interference from immunoglobulins up to a concentration of 28 g/L (187 mol/L) (simulated by human immunogloblulin G). Lactate Gen.2 assay (CSF samples): Ditaurobilirubin: No significant interference from ditaurobilirubin up to an approximate concentration of 102 mol/L (6 mg/dL). Tina-quant IGM-2 (Sensitive application): Hemolysis: No significant interference up to an H index of 600 (approximate hemoglobin concentration of 373 mol/L or 600 mg/dL). Lipemia (Intralipid): No significant interference up to an L index of 600 Customers were asked to do the following: " Be aware of the new interference claims listed in this Urgent Medical Device Correction (UMDC). This UMDC serves as labeling until the updated method sheets are available. The method sheets for the MODULAR ANALYTICS P/D modules will not be updated. " Manually update the H and L indexes for the IGMP2 sensitive application on your cobas c 311 analyzer or cobas c 501, 502, 701, and 702 modules following the instructions provided in this UMDC. " Complete all sections of the enclosed fax form (TP-00507) and fax it to 1-xxx-xxx-xxx or email it to [email protected]. " File this UMDC for future reference. When the method sheets are updated, they will be available on the diagnostics.roche.com Please contact the Roche Support Network Customer Support Center, 24 hours a day, seven days a week at 1-800-428-2336 if you have questions. website and on the cobas e-library. ***UPDATE: Firm sent updated communication to customers dated 5/9/2019 informing them that L and H index values