MAUDE Adverse Event Report: GENEOHM SCIENCES CANADA, INC. (BD DIAGNOSTICS) BD MAX¿ CTGCTV2 (US); MULTIPLE-TYPE SEXUALLY TRANSMITTED PATHOGEN NUCLEIC ACID IVD KIT

Catalog Number	445435
Medical Device Problem Code	Incorrect, Inadequate or Imprecise Result or Readings (1535)
Health Effect - Clinical Code	No Clinical Signs, Symptoms or Conditions (4582)
Date of Event	03/25/2026
Type of Reportable Event	Malfunction
Additional Manufacturer Narrative
A device evaluation is anticipated but has not yet begun.Upon completion of the investigation, a supplemental report will be filed.
Event or Problem Description
It was reported that during use of bd max¿ ctgctv2, a trichomonas vaginalis (tv) discrepant patient result was obtained.Initial test was tv positive.Repeat test was tv negative.There was no report of patient impact.
Event or Problem Description
It was reported that during use of bd max¿ ctgctv2, a trichomonas vaginalis (tv) discrepant patient result was obtained.Initial test was tv positive.Repeat test was tv negative.There was no report of patient impact.
Additional Manufacturer Narrative
Investigation summary: introduction: the complaint investigation for discrepant results when using bd ctgctv2 for bd cor¿ system (ref.(b)(4)) from kit lot 5294863 was performed by the review of manufacturing records, review of customer¿s data and by the complaint¿s history review.According to the customer¿s data, the sample was tested with ctgctv2 extraction plate lots 5225443 & 5240150, ctgctv2 liquid reagent plate lots 5232273 & 5232284 and ctgctv2 master mix plate lots 5224487 & 5225468 from kit lot 5294863, all these components were investigated.Batch history review: review of the manufacturing records of components lot (ctgctv2 extraction plate lots 5225443 & 5240150, ctgctv2 liquid reagent plate lots 5232273 & 5232284 and ctgctv2 master mix plate lots 5224487 & 5225468 from kit lot 5294863) indicates that those components lots were manufactured according to specifications and met performance requirements.Investigational testing: customer provided r files for investigation (from bd cor¿ instrument crm0117/crp0075: run from 2026-mar-23; from bd cor¿ instrument crm0116/crp0032: run from 2026-mar-25).The complaint concerned discrepant results obtained with correlation samples tested on their two bd cor¿ instruments using bd ctgctv2 for use on bd cor¿ system kit lot 5294863.Two samples were involved and were tested on both instruments using the same sbt, identified under last three digits of accession number *941 and *050 respectively.The discrepant results correspond to initially positive results that became negative upon retesting on another instrument.Manual pcr curves adjudication was performed across these two sample tests.Pcr curves of sample identified under last three digits of accession number *941, showed weak amplifications for the first testing on crp0075, which is consistent with a low target load across all assay targets.A similar phenomenon is observed for the other sample identified under last three digits of accession number *050, except for the ct target (fam channel), which remains positive upon repeat testing on the other instrument.Accordingly, the ct value observed for this target is earlier compared to the tv target (cy5 channel), which was initially positive on crm0117/crp0075, but became negative upon repeat testing on crm0116/crp0032, likely due to its low target load.Moreover, in both runs, the internal control in the rox channel showed amplification curves as expected, suggesting no reagent issue.However, it must be noted that according to the assay instruction for use document (ifu; p0294), repeat testing from a single bd molecular sample buffer tube must be performed on the same bd cor¿ system as the original test.The ifu also mentions that as with all pcr based invitro diagnostic tests, extremely low levels of target below the limit of detection of the assay may be detected, but results may not be reproducible.This further supports that the first tests were positive, but the second tests were not, especially considering the low target load of the samples tested.Nevertheless, it must be noted that manual curve adjudication has limitations; visual examination of pcr curves for low signal is a conservative assessment of the data.There is no indication of a reagent issue based on the analysis of the complaints received for discrepant results on the following components: ctgctv2 extraction plate lot 5240150, ctgctv2 liquid reagent plate lot 5232284 and ctgctv2 master mix plate lot 5225468.There is no indication of a reagent issue based on the analysis of the complaints received for discrepant results on the bd ctgctv2 assay in the bd cor¿ system lot 5294863.Conclusion: based on the data analysis and information provided, a specimen at or near the assay limit of detection (lod), or environmental or cross contamination, are the most likely causes to explain the customer¿s positive result in the initial test.Nonetheless, no reagents issue is suspected.The root cause was not identified.Bd cannot confirm the complaint based on the investigation that was performed.Bd did not initiate a corrective and preventive action since no new hazard was identified.

• Brand Name: BD MAX¿ CTGCTV2 (US)
• Common Device Name: MULTIPLE-TYPE SEXUALLY TRANSMITTED PATHOGEN NUCLEIC ACID IVD KIT
• Manufacturer (Section D): GENEOHM SCIENCES CANADA, INC. (BD DIAGNOSTICS); 2555 blv. du parc techn; quebec
• Manufacturer (Section G): GENEOHM SCIENCES CANADA, INC. (BD DIAGNOSTICS); 2555 blv. du parc techn; quebec
• Manufacturer Contact: matt j. connor ; 7 loveton circle; sparks, MD 21152 ; 4103164000
• MDR Report Key: 24871381
• Report Number: 3007420875-2026-00088
• Device Sequence Number: 10019635
• Product Code: QEP
• UDI-Device Identifier: 00382904454357
• UDI-Public: (01)00382904454357(17)260911(10)5294863
• Combination Product (Y/N): N
• Initial Reporter State: CA
• Initial Reporter Country: US
• PMA/510(K) Number: K243343
• Number of Events Summarized: 1
• Summary Report (Y/N): N
• Serviced by Third Party (Y/N): N
• Reporter Type: Manufacturer
• Report Source: Other,User Facility
• Initial Reporter Occupation: Other Health Care Professional
• Type of Report: Initial,Followup
• Report Date (Section B): 04/29/2026

1 Device was Involved in the Event

1 Patient was Involved in the Event

• Is this an Adverse Event Report?: No
• Is this a Product Problem Report?: Yes
• Operator of Device: Other
• Device Expiration Date: 09/11/2026
• Device Catalogue Number: 445435
• Device Lot Number: 5294863
• Was Device Available for Evaluation?: No
• Is the Reporter a Health Professional?: Yes
• Type of Report(Section G): Thirty-Day
• Initial Date Received by Manufacturer: 03/26/2026
• Supplement Date Received by Manufacturer: 04/29/2026
• Initial Report FDA Received Date: 04/14/2026
• Supplement Report FDA Received Date: 05/11/2026
• Was Device Evaluated by Manufacturer? (Y/N): No
• Date Device Manufactured: 10/21/2025
• Is the Device Labeled for Single Use? (Y/N): Yes
• Is This a Single-Use Device that was Reprocessed and Reused on a Patient? (Y/N): No
• Usage of Device: Initial
• Patient Sequence Number: 1
• Patient Sex: Unknown