The Elecsys Anti-TSHR immunoassay is a three-step competitive immunoassay with streptavidin-coated microparticles and electrochemiluminescence detection. Patient serum sample is incubated with pretreatment reagent PT1 and the reconstituted PT2 containing a pre-formed immunocomplex of solubilized porcine TSH receptor (pTSHR) and biotinylated anti-pTSHR mouse monoclonal antibody.
FDA Recall Z-1009-2026 · Posted 2026-01-02
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Recalling FirmRoche Diagnostics Operations, Inc.
Recall StatusOpen, Classified
Product CodeJZO
Date Initiated2025-11-21
Product Quantity1300 cassettes
Reason for Recall
Issues identified: 1) Results vary by Instrument Platform; 2) Calibrator Lot-to-Lot Variability. Issues may lead to delayed or incorrect diagnosis, as well as delay of treatment or incorrect treatment.
Firm Action
Firm notified customers on November 21, 2025 via Urgent Medical Device Correction notices. Customers using the cobas e 402/801 and cobas e411 were instructed to immediately discontinue using the impacted lots outlined in the UMDC and switch to the new unaffected lot numbers listed in the communication.
Root Cause
Process control
Distribution Pattern
US Nationwide distribution in the states of AZ, CA, FL, GA, IL, IN, ME, MI, MN, NC, NJ, NM, NY, OH, PA, PR, TN, TX, UT, WA, WV.
Related FDA 510(k) Records
Devices referenced by this recall via K-numbers.
Official Source
View FDA Recall →Source: FDA Enforcement Report / Recall database. Always confirm against the official FDA record.
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