FDA Adverse Event Malfunction Summary report: N

EVERSENSE SENSOR

MDR report key: 23507468 · Received November 9, 2025

Report

Report Number
3009862700-2025-01799
Event Type
Malfunction
Date Received
November 9, 2025
Date of Event
October 9, 2025
Report Date
January 15, 2026
Manufacturer
SENSEONICS INC.
Product Code
QHJ
UDI-DI
00817491022950
PMA / PMN Number
P160048
Product Problem
Yes
Report Source
Manufacturer report
Reporter Location
US
Reporter Occupation
OTHER
Health Professional
N

Narratives

Additional Manufacturer Narrative · 0

D2B.CORRECTED FROM SBA TO QHJ.

Additional Manufacturer Narrative · 0

THE MANUFACTURER IS CURRENTLY PERFORMING AN INVESTIGATION AND WILL PROVIDE THE RESULTS WITH THE SUPPLEMENTAL REPORT.

Additional Manufacturer Narrative · 0

THE SENSOR REPLACEMENT ALERT WAS FIRST PRESENTED TO THE USER ON 9 OCT 2025, DAY 160 AFTER INSERTION. THE SENSOR WAS TESTED IN-HOUSE, AND THE REVIEW OF INVESTIGATION ANALYSIS REVEALED A LOSS OF CHEMICAL PERFORMANCE. THE SYSTEM CORRECTLY DISABLED THE SENSOR WHEN IT DETECTED THE PERFORMANCE FAILURE, AND THE SYSTEM'S SELF-TEST FUNCTIONS WERE WORKING NORMALLY. THE ROOT CAUSE OF THE PERFORMANCE FAILURE WAS DUE TO THE OXIDATION OF THE GLUCOSE INDICATING CHEMISTRY IN THE SENSOR HYDROGEL.THE USER WAS PROVIDED WITH A REPLACEMENT SENSOR AS PART OF THE RESOLUTION. B4.DATE OF THIS REPORT 08 JAN 2026. G3.DATE RECEIVED BY THE MANUFACTURER? 08 JAN 2026. H3. DEVICE EVALUATED BY MANUFACTURER?YES. H6. TYPE OF INVESTIGATION UPDATED TO 10. H6. INVESTIGATION FINDINGS UPDATED TO 3231. H6. INVESTIGATION CONCLUSIONS UPDATED TO 4307.

Description of Event or Problem · 0

SENSEONICS WAS MADE AWARE OF AN INCIDENT WHERE USER RECEIVED AN EARLY SENSOR REPLACEMENT ALERT RESULTING IN AN EARLY SENSOR REMOVAL.

Devices

Seq Brand Generic Product Code Manufacturer Model Lot UDI-DI
40430 EVERSENSE SENSOR IMPLANTABLE GLUCOSE MONITORING SYSTEM, SENSOR QHJ SENSEONICS INC. 102096-81A 01E284S 00817491022950

Patients

Seq Age Sex Outcome Treatment
1 64 YR Male