MAUDE Adverse Event Report: ROCHE DIAGNOSTICS COAGUCHEK XS PT TEST; PROTHROMBIN TIME TEST STRIPS

Catalog Number 04625315070

Device Problem Non Reproducible Results (4029)

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

Event Date 02/05/2024

Event Type  malfunction  

Event Description

We received an allegation of questionable inr result with coaguchek xs meter serial number (b)(6).The result from the meter was 1.6 inr.Customer tested again 10 minutes later and the result was 2.1 inr.Customer's therapeutic range is 2.5-3.5 inr.

Manufacturer Narrative

On a regular basis, coaguchek strips of lots currently valid in the market are tested as part of routine retention testing and results have passed the internal inspection.Per product labeling, coaguchek uses human recombinant thromboplastin.Therefore, the comparability to other human recombinant thromboplastins is best, whereas higher deviations can occur with other thromboplastins.However, those higher differences between thromboplastins of different (rabbit, bovine based) origin are not a coaguchek specific issue.Similar differences can be observed when a human recombinant thromboplastin-based laboratory method is compared against several other (rabbit, bovine-based) laboratory methods.The investigation did not identify a product problem.The cause of the event could not be determined.

Manufacturer Narrative

The customer's meter and test strips were returned.The returned meter and strips were provided for investigation where they were tested using a high level control sample.Testing results (qc range = 2.4 ¿ 3.6 inr): qc 1: 2.8 inr.Qc 1: 2.9 inr.Qc 1: 2.8 inr.The obtained qc values were in the allowed range of the used combination strip lot - qc lot.All measurements were without error messages.Medwatch fields d9 and h3 have been updated.

• Brand Name: COAGUCHEK XS PT TEST
• Type of Device: PROTHROMBIN TIME TEST STRIPS
• Manufacturer (Section D): ROCHE DIAGNOSTICS; 9115 hague road; indianapolis IN 46250 0457
• Manufacturer (Section G): ROCHE DIAGNOSTICS GMBH; sandhofer strasse 116; mannheim (baden-wurttemberg) 68305 ; GM 68305
• Manufacturer Contact: amy nelson ; 9115 hague road; indianapolis, IN 46250
• MDR Report Key: 18811020
• MDR Text Key: 336670385
• Report Number: 1823260-2024-00610
• Device Sequence Number: 1
• Product Code: GJS
• Combination Product (y/n): Y
• Reporter Country Code: SP
• PMA/PMN Number: K062925
• Number of Events Reported: 1
• Summary Report (Y/N): N
• Report Source: Manufacturer
• Source Type: Foreign,Consumer
• Reporter Occupation: Non-Healthcare Professional
• Type of Report: Initial,Followup
• Report Date: 03/27/2024

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Date FDA Received: 02/29/2024
• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Device Operator: Lay User/Patient
• Device Catalogue Number: 04625315070
• Device Lot Number: 73986221
• Was Device Available for Evaluation?: Device Returned to Manufacturer
• Date Manufacturer Received: 03/26/2024
• Was Device Evaluated by Manufacturer?: Yes
• Is the Device Single Use?: No
• Is This a Reprocessed and Reused Single-Use Device?: No
• Patient Sequence Number: 1