inforMED
MalfunctionLFZ

ELECSYS CMV IGG

Received Mar 6, 2026 · Event occurred Dec 1, 2025

Report 1823260-2026-00810 · MDR key 24537066

Device

Generic name

Cytomegalovirus Immunoassay

Manufacturer

Roche Diagnostics

Model number

CMV IGG

Catalog number

09118551190

Lot number

878438

Product problems

  • Low Test Results

Patient

Unknown

  • No Clinical Signs, Symptoms or Conditions

Narrative

Description of Event or Problem

THERE WAS AN ALLEGATION OF QUESTIONABLE ELECSYS CMV IGG RESULTS FROM THE COBAS E 801 ANALYTICAL UNIT. ON AN UNKNOWN DATE IN (B)(6), THE RESULT VIA DIASORIN METHOD WAS POSITIVE. ON (B)(6) 2025, THE CMV IGG RESULT USING THE CUSTOMER'S ROCHE METHOD WAS NEGATIVE. ON (B)(6) 2026, THE RESULT FROM THE COBAS E801 WAS NEGATIVE. ON (B)(6) 2026, A NEW SAMPLE WAS DRAWN, AND THE RESULT USING THE COBAS E801 WAS NEGATIVE. ON (B)(6) 2026, THE RESULT FROM THE COBAS E801 WAS NEGATIVE. ALIQUOTS OF THE PATIENT SAMPLE WERE RETESTED AT OTHER CENTERS USING DIFFERENT METHODS: THE DIASORIN RESULT WAS POSITIVE. THE RESULT FROM ANOTHER ROCHE SYSTEM WAS POSITIVE.

Additional Manufacturer Narrative

THE COBAS E 801 ANALYTICAL UNIT SERIAL NUMBER WAS (B)(6). THE INVESTIGATION IS ONGOING.