Roche Diagnostics Operations, Inc.: cobas pro integrated solutions with cobas c 503 analytical units: cobas pro sample supply unit, material number 08464502001 cobas pro SSU, material number 09205632001 Affected Assays: (Product Name/ Catalog Number/ Application Code/ Application Short Name) 1. Cystatin C Gen.2 08105596190 20510 CYSC2 2. Ferritin Gen.4 08057648190 20571 FER4X 3. Lipoprotein (a) Gen.2 08106126190 20861 LPA2X 4. Lipoprotein (a) molarity 08106126160 20864 LPA2-X 5. Vancomycin Gen.3 08058849190 21211 VANC3O 6. Kappa Free Light Chains Partner Channel 08896640190 21421 KFLCX 7. Lambda Free Light Chains Partner Channel 08896631190 21430 LFLC 8. fCAL turbo Partner Channel 08910367190 21490 FCAL

Recall number

Z-1476-2026

Recalling firm

Roche Diagnostics Operations, Inc.

Product

cobas pro integrated solutions with cobas c 503 analytical units: cobas pro sample supply unit, material number 08464502001 cobas pro SSU, material number 09205632001 Affected Assays: (Product Name/ Catalog Number/ Application Code/ Application Short Name) 1. Cystatin C Gen.2 08105596190 20510 CYSC2 2. Ferritin Gen.4 08057648190 20571 FER4X 3. Lipoprotein (a) Gen.2 08106126190 20861 LPA2X 4. Lipoprotein (a) molarity 08106126160 20864 LPA2-X 5. Vancomycin Gen.3 08058849190 21211 VANC3O 6. Kappa Free Light Chains Partner Channel 08896640190 21421 KFLCX 7. Lambda Free Light Chains Partner Channel 08896631190 21430 LFLC 8. fCAL turbo Partner Channel 08910367190 21490 FCAL

Status

Open, Classified

Initiated

2026-01-20

Posted

2026-02-27

Terminated

not on file

Reason

Software defect, which allows the system to accept erroneous, non-monotonous calibrations for Spline-type assays. Cobas pro integrated solutions is an automated analyzer, intended for running qualitative, semi-quantitative and quantitative clinical chemistry and immunochemistry assays, as well as ion-selective measurements. When an erroneous calibration is active, the instrument fails to calculate new values and instead repeats the last successfully calculated result from any Spline-type assay for all subsequent measurements, leading to identical and erroneous patient and QC results. The defect could lead to patients receiving erroneous lab results, which could result in a remote risk of serious adverse health consequences. The following assays use spline type calibration and are affected by this issue: Cystatin C Gen.2, Ferritin Gen.4, Lipoprotein (a) Gen. 2, Lipoprotein (a) molarity, Vancomycin Gen.3, Kappa Free Light Chains Partner Channel, Lambda Free Light Chains Partner Channel, and fCAL turbo Partner Channel.

Root cause

Software design

Action

On 1/20/26, the firm notified affected customers via written Urgent Medical Device Correction letters. Customers were provided with workaround instructions and further instructed to consult with the physician or pathologist at their facility to determine specific clinical implications for patients. This issue has been corrected with the launch of a subsequent cobas pro software version. It is mandatory to upgrade all cobas c 503 analytical units running Spline assays to the latest software version. A Roche Diagnostics Service Representative will contact affected customers to schedule an upgrade to software version 03-03.

Quantity

1261 total

Distribution

US Nationwide distribution.

Lot, serial or model codes

cobas pro sample supply unit, UDI-DI 07613336158852 cobas pro SSU, UDI-DI 07613336179499 all software versions previous to 03-02

510(k) numbers

["K191899"]

PMA numbers

not on file

Product code

JJE

Firm FEI

1823260

Firm city

Indianapolis

Firm state

IN

Firm country

not on file

Cite as

FDA Medical Device Recalls (openFDA) (U.S. Food and Drug Administration (openFDA)), device-recall-0001-of-0001.json.zip, sha256 b87518bfe2e8, published 2026-09-28

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