N Latex CDT Kit recallZ-2931-2018 · CSL Behring GmbH · initiated May 31, 2018
Terminated
Is my device affected?
- Compare the model, catalog and lot or serial numbers on your device or its packaging with the code information below. A recall usually covers only specific models or lots.
- If yours is listed, follow the instructions from CSL Behring GmbH or your healthcare provider. The company's action is summarized under what the company is doing.
- Do not stop using a prescribed or implanted device on your own — talk to your healthcare provider first.
Where to find your model and lot numbers · What recall classes and statuses mean
Why it was recalled
Siemens Healthcare Diagnostics has observed a negative bias for the carbohydrate-deficient transferrin (CDT) measurement when using the affected N Latex CDT lots in comparison to the HPLC method. CDT results in absolute concentrations may be influenced by patients transferrin levels and, therefore, results are reported as ratio of CDT to total transferrin, called %CDT. As the transferrin determination with N Antiserum to Human Transferrin is not affected, the observed effect leads to calculated %CDT values that show a negative bias of approximately 15% compared to the HPLC method. This could result in a shift of weak positive patient samples into the reference range of 1.19 2.47 %CDT which was derived from a study population of healthy adults. There are no control or calibrator materials that would catch this bias.
FDA root cause category: Under Investigation by firm
What the company is doing
On May 31, 2018 Siemens Healthcare Diagnostics issued Urgent Medical Device Correction notices (UMDC) PP18-002.A.US to the 4 affected customers in the U.S. Actions to be Taken by the Customer are as follows: Siemens Healthcare Diagnostics has assigned optimized values to the affected lots of standards and controls included in the kit lots. Those lots of standards and controls can be used with the revised assigned values and acceptance ranges. As per Urgent Medical Device Correction (UMDC) PP18-001.A.US, customers were instructed to: - Recalibrate your CDT method with N CDT Standard lots listed in the UMDC letter, using the revised assigned values provided in the UMDC letter. - Use the revised assigned values and respective ranges of the N CDT Controls provided in the UMDC letter. - For BN ProSpec and Atellica NEPH 630 customers, a new Lot Data CD as well as new Secure Download Files are expected to be available in June 2018, including the revised CDT target values for N CDT Standard, N CDT Control 1 and N CDT Control 2. - Please make sure that the values you manually entered according to this information are not overwritten by using an older Lota Data CD/Secure Download File afterwards. Customers are requested to complete and return the Effectiveness Check questionnaire attached to the Urgent Medical Device Correction letter and the Urgent Field Corrective Action letter within 30 days.
Recall details
- Recall number
- Z-2931-2018
- Status
- Terminated
- Initiated by the company
- May 31, 2018
- Recalling firm
- CSL Behring GmbH
- Quantity
- 6635 units
- Product code
- NAO
- FDA submissions
- K060677
- Distribution
- Domestic - DE, IN, KS, MO & VA Internationally - Australia Austria Belgium Canada China Czech Republic Finland France Germany Hungary India Italy Japan Latvia Lithuania Netherlands Norway Poland Portugal Saudi Arabia Slovakia Slovenia South Africa South Koria Spain Sweden Switzerland Taiwan Turkey United Kingdom Uruguay
Product description
N Latex CDT Kit
Code information (models, lots, serial numbers)
UDI - 842768018534 Lot # 47169, Exp Date: 2018-06-15 Lot # 47596, Exp Date: 2018-11-30 Lot # 47716, Exp Date: 2018-11-30 Lot # 48084, Exp Date: 2019-03-21 Lot # 48168, Exp Date: 2019-03-21
Devices named in this recall
1 device in the FDA device registry whose identifier appears in the recall's code information.
- N Latex CDT Kit 10445997Siemens Healthcare Diagnostics Products GmbH · Test,carbohydrate deficient transferrin2 recalls0 reports
Sources and updates
- Recall record: FDA Medical Device Recalls, file dated Oct 16, 2026 · View the FDA recall notice ↗
- Devices: FDA GUDID, file dated Oct 13, 2026. Devices are linked when their identifier (with a valid check digit) appears in the recall's code information.
- Page last rebuilt: Oct 16, 2026. Text above is shown as published by the FDA.
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