Recall Z-0366-2026 ยท CEW Radioimmunoassay, Parathyroid Hormone
Siemens Healthcare Diagnostics, Inc.
Assay: IMMULITE 2000 Intact PTH; Test Code: iPT; Siemens Material Number (SMN): (1) 10381441, (2) 10381442; Catalog Number: (1) L2KPP2, (2) L2KPP6;
| Date | Oct 27, 2025 (initiated Sep 22, 2025) |
| Status | Open, Classified |
| Reason | The potential for falsely depressed Intact PTH patient results at the low end of the assay range, less than or equal to 50 pg/mL (less than or equal to 5.3 pmol/L), when using specific lots identified by the firm on the IMMULITE 2000/IMMULITE 2000 XPi systems. The bias is observed in both serum and plasma samples. |
| Root cause | Under Investigation by firm |
| Action | On September 22, 2025 URGENT MEDICAL DEVICE CORRECTION letters were sent to customers. Customer Actions: Please review this letter with your Medical Director to determine the appropriate course of action, including for any previously generated results, if applicable. Discontinue use of and discard the kit lot listed in the table above (Products Section). Complete and return the Field Correction Effectiveness Check Form attached to this letter within 30 days. For continued Intact PTH testing in your laboratory during this time, please contact your Siemens representative to discuss alternative S |
| Quantity | 3318 units (169 US, 3149 OUS) |
| Distribution | Worldwide - US Nationwide distribution in the states of AL, CA, DC, FL, ID, IN, LA, MD, NC, NJ, NY, PA, SC and the countries of Argentina, Australia, Bolivia, Bosnia Herzeg, Brazil, Bulgaria, Canada, Chile, Colombia, Cyprus, Czech Republic, Ecuador, Egypt, France, Germany, Greece, Guatemala, Hondura |
| FDA record | Open on fda.gov |
510(k) clearances named in this recall
| K013566 | IMMULITE INTACT PTH, IMMULITE 2000 INTACT PTH, MODELS LKPP1 (100 TESTS), LKPP5 (500 TESTS), L2KPP2 (200 TESTS), L2KPP6 Diagnostic Products Corp., Nov 20, 2001 |