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U.S. Department of Health and Human Services

Class 2 Device Recall MOL3650 Simplexa VZV Direct

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  Class 2 Device Recall MOL3650 Simplexa VZV Direct see related information
Date Initiated by Firm May 12, 2020
Date Posted July 10, 2020
Recall Status1 Completed
Recall Number Z-2548-2020
Recall Event ID 85744
510(K)Number K190219  
Product Classification Meningitis/Encephalitis pathogen multiplex nucleic acid detection system - Product Code PLO
Product MOL3650 Simplexa VZV Direct - Product Usage: is intended for use on the LIAISON MDX instrument for the qualitative detection of varicella-zoster virus (VZV) DNA in cerebrospinal fluid (CSF) from patients with signs and symptoms of VZV infections of the central nervous system (CNS).
Code Information MOL3650 Simplexa VZV Direct: Lot Numbers Release Date Exp Date 5178N 06/12/19 6/30/2020 7004N 03/04/20 2/28/2021
Recalling Firm/
DiaSorin Molecular LLC
11331 Valley View St
Cypress CA 90630-5366
For Additional Information Contact
Manufacturer Reason
for Recall
Due to a software malfunction in the Multi Assay Suite, there is the probability of increased occurrence of false negative results.
FDA Determined
Cause 2
Under Investigation by firm
Action On 05/12/2020, the firm sent an "URGENT FIELD SAFETY NOTIFICATION LETTER" with an acknowledgement form to customers and distributors via email to inform them of an internal observed issue associated with the use of their Multi-Assay Suite (MAS) featured in the software version 2.0 where it may incorrectly apply the thresholds of the first loaded assay to the analytes coupled with the same dye in the second assay resulting in false negative or false positive results. The firm is instructing customers to: -Immediately discontinue the use of the MAS feature and that the issue will be correct in the new Software Version 2.1 which is expected to be release in June 2020. -Fill out the Response Form and return by either: -fax (562) 240-6526 Attention: Technical Services -email to: technical info.molecular@diasorin.com -mail to: ATTN: Technical Services, 11331 Valley View Street, Cypress, CA 90630 -Forward this communication to all required individuals with their organization. For further assistance with evaluating assay runs or for any questions, to contact Technical Services at +1-5672-240-6500, option 3 or via email ts.molecular@DiaSorin.com
Quantity in Commerce 405 plastic vials (24 vials per box)
Distribution Worldwide distribution - U.S. Nationwide distribution including in the states of CO, FL, KS, MI, NC, PA, TX, and WA The countries of Austria, Czech Republic, France and Switerland.
Total Product Life Cycle TPLC Device Report

1 A record in this database is created when a firm initiates a correction or removal action. The record is updated if the FDA identifies a violation and classifies the action as a recall, and it is updated for a final time when the recall is terminated. Learn more about medical device recalls.
2 Per FDA policy, recall cause determinations are subject to modification up to the point of termination of the recall.
510(K) Database 510(K)s with Product Code = PLO and Original Applicant = DiaSorin Molecular LLC