MAUDE Adverse Event Report: BECKMAN COULTER ACCESS SENSITIVE ESTRADIOL; RADIOIMMUNOASSAY, ESTRADIOL

Catalog Number	B84493
Medical Device Problem Code	Low Test Results (2458)
Health Effect - Clinical Code	Overdose (1988)
Date of Event	09/02/2020
Type of Reportable Event	Serious Injury
Additional Manufacturer Narrative
The full patient identifier is (b)(6).Per originator verbal's report, customer reported having this issue for around ten patients meaning that around seven patients have been included within this report as three patients have already been included within other mdrs.The exact number of patients was not specified, and no data was provided.The customer did not supply patient demographics such as age, date of birth, weight, ethnicity, or race.The access sensitive estradiol snse2 reagent was not returned for evaluation.All assay, and system verifications met specifications at the time of the event.No hardware errors, flags, or other assay issues were reported in conjunction with this event.The cause of this event cannot be determined with the available information.There are a total of four mdrs submitted for (b)(4) (three for patient samples re-tested by a beckman coulter laboratory solution specialist on alternate methodologies with discordant results and one for other patient samples not re-tested.
Event or Problem Description
On 02sep2020, the customer reported obtaining false low sensitive estradiol (access snse2) result for multiple patients involving the laboratory's unicel dxi 800 access immuno analyzer (serial number (b)(4)).Customer reported that before and after estradiol medication, there was no change in the snse2 results, which affected clinical judgment.Per beckman coulter laboratory solution specialist (lss) verbal's report, around ten patients were involved in this issue.Only three patient results were provided by customer but are excluded from this report as three mdrs have been already submitted for these three patients.No further patient information was provided.Based on the low snse2 result obtained during follicular monitoring, the patients were intake over-dose medicine (estradiol valerate tablets: progynova).Snse2 calibration was passing within specifications at the time of the event.Per customer¿s verbal report, system checks have been passing and qc was within the laboratory¿s established ranges.Additionally, no hardware errors or other assay issues were reported in conjunction with this event.Sample tube collection type was not provided.Sample processing information such as centrifugation time, speed and temperature were not provided.There was no report of sample integrity issues.No further sample information was provided.
Additional Manufacturer Narrative
The access sensitive estradiol (snse2) reagent (part number b84493 and the lot number 966021) was manufactured in suzhou (beckman coulter laboratory systems suzhou co ltd, 181 west su hong road, sip suzhou, 215021, jiangsu, china).
Additional Manufacturer Narrative
The patients in this event were reported to be taking exogenous estradiol (estradiol valerate tablets: progynova).In an internal study, bi-directional interference was identified with metabolites estrone and estrone-3-sulfate associated with exogenous estradiol.In conclusion, the cause of the erroneously low sensitive estradiol (snse2) results is due to bi-directional interference with metabolites estrone and estrone-3-sulfate associated with exogenous estradiol.

• Brand Name: ACCESS SENSITIVE ESTRADIOL
• Common Device Name: RADIOIMMUNOASSAY, ESTRADIOL
• Manufacturer (Section D): BECKMAN COULTER; 1000 lake hazeltine drive; chaska MN 55318
• MDR Report Key: 10539375
• Report Number: 2122870-2020-00081
• Device Sequence Number: 13217526
• Product Code: CHP
• UDI-Device Identifier: 15099590699383
• UDI-Public: (01)15099590699383(17)210604(11)200610(10)966021
• Combination Product (Y/N): N
• Initial Reporter Country: CH
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Reporter Type: Manufacturer
• Report Source: foreign,health professional,u
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup,Followup
• Report Date (Section B): 04/28/2021

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: Yes
• Is this a Product Problem Report?: No
• Operator of Device: Health Professional
• Device Expiration Date: 06/04/2021
• Device Catalogue Number: B84493
• Device Lot Number: 966021
• Was Device Available for Evaluation?: No
• Distributor Facility Aware Date: 09/02/2020
• Initial Date Received by Manufacturer: 09/02/2020
• Supplement Date Received by Manufacturer: 09/02/2020; 03/30/2021
• Initial Report FDA Received Date: 09/16/2020
• Supplement Report FDA Received Date: 09/25/2020; 04/28/2021
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Patient Sequence Number: 1
• Outcome Attributed to Adverse Event: Other