FDA Adverse Event Malfunction Summary report: N

FOUNDATIONONE®CDX

MDR report key: 24772332 · Received April 2, 2026

Report

Report Number
3010679023-2026-00003
Event Type
Malfunction
Date Received
April 2, 2026
Date of Event
January 31, 2026
Report Date
April 2, 2026
Manufacturer
FOUNDATION MEDICINE, INC.
Product Code
PQP
PMA / PMN Number
P170019
Removal / Correction Number
RES# 98625 / 3010679023-
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
MA, US
Reporter Occupation
OTHER HEALTH CARE PROFESSIONAL
Health Professional
Yes

Narratives

Additional Manufacturer Narrative · 0

FOUNDATION MEDICINE (FMI) IDENTIFIED AN ISSUE THAT IMPACTED SIX (6) F1CDX PATIENT REPORTS ISSUED RESULTING IN A FALSE-POSITIVE BARD1 SPLICE SITE INDEL ARTIFACT VARIANTS WHICH WAS REPORTED AS A TUMOR PROFILING FINDING DUE TO A MANUFACTURER DEFECT ASSOCIATED WITH A COMPONENT USED DURING SEQUENCING. INFORMATION WAS RECEIVED FROM THE MANUFACTURER OF THE COMPONENT ON 05MAR2026 THAT REASONABLY SUGGESTED THAT THERE WAS A DEVICE MALFUNCTION THAT HAD CAUSED THIS BARD1 ARTIFACT FALSE-POSITIVE. PRIOR TO 05MAR2026, FMI HAD BEEN INVESTIGATING WHETHER THE ISSUE WAS POTENTIALLY RELATED TO REAGENT HANDLING/STORAGE IN FMI'S CLINICAL LABORATORIES. ALTHOUGH THESE VARIANTS WERE NON-ACTIONABLE ON THE F1CDX REPORTS IMPACTED (I.E. DID NOT HAVE AN ASSOCIATED COMPANION DIAGNOSTIC TREATMENT), IF THIS ISSUE WERE TO REOCCUR WHILE TESTING A PROSTATE CANCER SAMPLE, A FALSE-POSITIVE COMPANION DIAGNOSTIC RESULT FOR OLAPARIB COULD THEORETICALLY OCCUR. THIS COULD LEAD TO INAPPROPRIATE TREATMENT WITH OLAPARIB, WITH POTENTIAL FOR DRUG-RELATED ADVERSE REACTIONS AND/OR DISEASE PROGRESSION, REQUIRING A MEDICAL INTERVENTION TO CHANGE TREATMENT TO EFFECTIVE OPTIONS.

Description of Event or Problem · 0

ON 31 JAN 2026, THE FOUNDATION MEDICINE, CLINICAL BIOINFORMATICS OPERATIONS (CBO) TEAM FLAGGED DNA SEQUENCING MASTER POOL (B)(6) (ANALYSIS WORKFLOW: (B)(6) PROD) FOR THE PRESENCE OF POTENTIAL BARD1 SPLICE SITE INDEL ARTIFACT VARIANTS. THE INVESTIGATION DETERMINED THAT AN INCREASED FREQUENCY OF BARD1 SPLICE SITE INDEL ARTIFACT VARIANTS, PRESENT IN A HOMOPOLYMER SEQUENCE REGION, WAS CORRELATED WITH THE USE OF SUPPLIER PROVIDED REAGENT SEQ0067 WITH LOT NUMBERS: 24346, 24386, 24488. SIX (6) F1CDX REPORTS ASSOCIATED WITH THE USE OF ILLUMINA SBS CARTRIDGE LOT NUMBER: 20964146 WERE REPORTED OUT WITH FALSE-POSITIVE BARD1 SPLICE SITE INDEL ARTIFACT VARIANTS AND WERE LATER AMENDED. NO EXTERNAL COMPLAINT OR ADVERSE EVENT WAS REPORTED FOR THIS PATIENT. ON 05MAR2026, THE SUPPLIER OF SEQ0067 PROVIDED FOUNDATION MEDICINE WITH A CUSTOMER NOTIFICATION THAT DESCRIBED A MANUFACTURER DEFECT WITH SIX (6) VENDOR LOTS. OF THE SIX (6) IMPACTED VENDOR LOTS, ONLY ONE VENDOR LOT WAS RECEIVED BY FOUNDATION MEDICINE, WHICH WAS INTERNALLY IDENTIFIED AS NUMBERS: 24346, 24386, 24488.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
469625 FOUNDATIONONE®CDX No Match PQP FOUNDATION MEDICINE, INC. SEQ0067 24346 / 24386 / 24488

Patients

Seq Age Sex Outcome Treatment
1 82 YR Male