MAUDE Adverse Event Report: SIEMENS HEALTHCARE DIAGNOSTICS, INC. ATELLICA IM CA 15-3; SYSTEM, TEST, IMMUNOLOGICAL, ANTIGEN, TUMOR

Model Number N/A

Device Problem Low Test Results (2458)

Patient Problem No Clinical Signs, Symptoms or Conditions (4582)

Event Date 07/15/2021

Event Type  malfunction  

Manufacturer Narrative

The customer observed quality control result failures from readypack (b)(4).A pack calibration was performed and the qc results were not within expectations.Two samples that were tested from this pack required corrected reports due to initially low results that were higher upon repeat testing.Siemens continues to investigate.The limitations section of the instructions for use states: "warning: do not use the atellica im ca 15-3 assay as a screening test or for diagnosis.Normal levels of ca 15-3 do not always preclude the presence of disease." "note: do not interpret levels of ca 15-3 as absolute evidence of the presence or the absence of malignant disease.Before treatment, patients with confirmed breast carcinoma frequently have levels of ca 15-3 within the range observed in healthy individuals.Additionally, elevated levels of ca 15-3 can be observed in patients with nonmalignant diseases.Measurements of ca 15-3 should always be used in conjunction with other diagnostic procedures, including information from the patient's clinical evaluation.".

Event Description

Discordant, falsely depressed ca15-3 results were obtained on two patient samples on an atellica im 1600 analyzer (serial no.(b)(4)).The discordant results were reported to the physician(s), who questioned the results.The original samples were repeated either on the same instrument or an alternate instrument.The repeat results were higher than the discordant results.The repeat results were reported, as the correct results, to the physician(s).There are no known reports of patient intervention or adverse health consequences due to the discordant, falsely depressed ca15-3 results.

Manufacturer Narrative

Mdr 1219913-2021-00421 was filed on august 18, 2021.August 23, 2021 - additional information the customer observed several atellica im ca 15-3 patient sample results which were lower than expected.When repeated on a new pack the results were higher and as expected.Siemens reviewed the available information to determine probable cause and evaluate for potential product issue.Qc run on the initial pack was outside designated ranges.A subsequent pack calibration on this pack generated concentration values of half of what is normally observed.Rlus were very depressed on this pack calibration vs expected for the reagent lot.Qc on the replacement pack of the same lot which generated the expected patient repeated results was within expected ranges.No other tests were affected on this system at the same time.Potential cause of the result divergence is due to the loss of integrity of the reagent pack: a box of ca 15-3 is believed to have been compromised.No product performance issue is observed.The customer is operational.No further action is needed.In section h6, the investigation finding, and investigation conclusion codes were updated.

• Brand Name: ATELLICA IM CA 15-3
• Type of Device: SYSTEM, TEST, IMMUNOLOGICAL, ANTIGEN, TUMOR
• Manufacturer (Section D): SIEMENS HEALTHCARE DIAGNOSTICS, INC.; 511 benedict avenue; tarrytown NY 10591 5097
• MDR Report Key: 12339694
• MDR Text Key: 267269235
• Report Number: 1219913-2021-00421
• Device Sequence Number: 1
• Product Code: MOI
• UDI-Device Identifier: 00630414598130
• UDI-Public: 00630414598130
• Combination Product (y/n): N
• PMA/PMN Number: K012357
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: foreign,health professional,u
• Type of Report: Initial,Followup
• Report Date: 08/26/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 08/18/2021
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Health Professional
• Device Expiration Date: 12/25/2021
• Device Model Number: N/A
• Device Catalogue Number: 10995486
• Device Lot Number: 194
• Date Manufacturer Received: 08/23/2021
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1