The Tina-Quant Myoglobin Gen. 2 Tests system is an immuno-turbidimetric assay for the quantitative in vitro determination of myoglobin in...
FDA Recall Notice
Source: U.S. Food and Drug Administration (FDA) — official FDA notice for recall FDA-Z-2445-2019.
The firm conducted internal investigations that confirmed customer complaints of quality control (QC) imprecision and calibration failures for the Tina-quant Myoglobin Gen.2 assay (catalog number 04580010190), lot number 349860 on the cobas c311 analyzer and cobas c501 and c502 modules due to a drop in signal in the reaction kinetics. This signal drop was traced to an adjacent cell mixing effect. Sample recovery is decreased as a consequence of the disturbance in reaction kinetics. The investigation found discrepancies of up to -30%. Calibration, QC, and patient samples can be affected. The following issues were reported: - Calibration failures; Dup.E error due to signal drop in reaction kinetics - Sporadic quality control (QC) imprecision. As a long-term solution, the firm will implement required extra wash cycles (EWCs) into the respective Special Wash Requirements method sheets for the cobas c 311 analyzer and cobas c 501 and 502 modules, and into the cobas e-file for the cobas c 502 module. For the use of the reagent with the cobas c501 and c502, Roche will also direct users to run the Tina-Quant Myoglobin gen. 2 assay independently from other tests, in a batch mode status, with a maximum of 39 samples per run. Additionally, a change in the application settings of the Tina-quant Myoglobin Gen.2 assay on the cobas c 501 and 502 modules will be implemented so that adjacent cuvettes are no longer used in order to prevent adjacent cell mixing effects. The application settings change will be communicated at a later date.
Corrective Action (per FDA)
Source: U.S. Food and Drug Administration (FDA) — official FDA notice for recall FDA-Z-2445-2019.
Recall terminated by FDA.
🩺 Talk to your doctor or pharmacist
Product Recall Tracker does not provide medical advice. Any specific instructions about this medication or device come directly from the FDA notice above. Before making any change to your treatment:
- Do not stop, change, or discard your prescription on your own.
- Call your doctor or pharmacist and ask whether this FDA notice applies to your prescription (have the brand name, dosage, and lot number ready if you can find them).
- Follow your clinician's guidance on whether to continue, switch, or return the product.
- If you have experienced a reaction, seek medical care and report it to the FDA via MedWatch.
- For the official FDA notice, visit the FDA recalls page.
Consumer Contact (per FDA)
Source: U.S. Food and Drug Administration (FDA) — official FDA notice for recall FDA-Z-2445-2019.
Roche Diagnostics Operations, Inc.
About the U.S. Food and Drug Administration
The FDA regulates drugs, medical devices, food, cosmetics, and tobacco. Adverse event reports and recall notices are the main public safety signal.
Visit FDA.gov →📣 Report an adverse event to the FDA (MedWatch)
If you had an adverse reaction, side effect, or device malfunction from this medication or device, report it to the FDA through MedWatch. Talk to your doctor or pharmacist first — do not stop a prescription on your own. Reports help the FDA detect rare or emerging safety signals and can lead to label changes or recalls.
Roche Diagnostics Operations, Inc. Recall FAQ
Roche Diagnostics Operations, Inc. is the subject of a diagnostic devices safety report: The Tina-Quant Myoglobin Gen. 2 Tests system is an immuno-turbidimetric assay for the quantitative in vitro determination of myoglobin in.... The notice was published on July 2, 2019 by the U.S. Food and Drug Administration (FDA). Approximately 4,309 units are potentially affected.