Diagnostica Stago, Inc. STA - Deficient VIII, Product Code: 00725. STA - Deficient VIII is an immuno-depleted human plasma intended for use in tests for the determination of factor VIII activity in plasma on STA-R and STA Compact analyzer platforms as follows: (A) STA-R Max, Product Codes: 58989, 58990 (B) STA-R Evolution, Product Codes: 58986, 58987, 58988 (C) STA Compact Max, Product Codes: 59026, 59027 (D) STA Compact, Product Codes: 58978, 58979 Recall
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According to the U.S. Food and Drug Administration (FDA)
Product
STA - Deficient VIII, Product Code: 00725. STA - Deficient VIII is an immuno-depleted human plasma intended for use in tests for the determination of factor VIII activity in plasma on STA-R and STA Compact analyzer platforms as follows: (A) STA-R Max, Product Codes: 58989, 58990 (B) STA-R Evolution, Product Codes: 58986, 58987, 58988 (C) STA Compact Max, Product Codes: 59026, 59027 (D) STA Compact, Product Codes: 58978, 58979
Brand
Diagnostica Stago, Inc.
Lot Codes / Batch Numbers
Not specified in FDA notice. Check official source for details.
Products Sold
All lots This cleaning sequence has been implemented in the following available software versions. Customers not possessing these software levels will be upgraded by Stago Field Support personnel: STA-R¿ Max (all serial numbers): Software version 4.05.04 or higher, and Methodology Update (MU) to enhance database version MS215. STA-R¿ Evolution (serial numbers higher than 8012756): Software version 3.04.09 or higher STA¿ Compact Max (all serial numbers): Software version 110.05 or higher.
Diagnostica Stago, Inc. is recalling STA - Deficient VIII, Product Code: 00725. STA - Deficient VIII is an immuno-depleted human plasma due to A risk of sample-to-sample cross-contamination of Emicizumab for factor VIII assays on Stago instruments, clotting times will be shortened that may c. Based on FDA medical device recall database.
Summary derived from FDA notice
Reason for Recall
As stated by FDA
A risk of sample-to-sample cross-contamination of Emicizumab for factor VIII assays on Stago instruments, clotting times will be shortened that may cause factor VIII levels reported to be falsely increased
Recommended Action
Per FDA guidance
Stago notified on 3/4/20 end users of the risks to factor VIII tests in writing. Letters issued via email, US mail, and/or UPS overnight mail. Letter states reason for recall, health risk and action to take: To remove this cross-contamination risk, a special pre-wash has been developed for the concerned Stago methodology. It involves special washing of needle 1 before every factor VIII assay in order to eliminate any residual quantities of Emicizumab. This cleaning sequence has been implemented in the stated available software versions. Customers not possessing these software levels will be upgraded by Stago Field Support personnel. Completed enclosed acknowledgement coupon to Stago confirming you have read the letter and will apply the instructions Please fax to 1-973-644-9348 or e-mail toquality.systems@us.stago.com. For additional information, please contact your Stago Hotline at 1-800-725-0607. In addition- Since the Stago analyzer platforms are open systems, analyzer customers may be performing other factor VIII assays (e.g. LDTs, or other manufacturers factor VIII products) that Stago has no visibility to, or control over. Therefore an Information Letter issued to all other US customers of the analyzers, to alert customers to the risk that factor VIII testing on these Stago analyzers can be affected by the Emicizumab molecule, and to contact technical service teams for assistance.
Verify this information on the official source
For complete details and official instructions, check the U.S. Food and Drug Administration (FDA) directly.
View official FDA recall noticePage updated: Jan 10, 2026