Reported Reactions

Devices › Integrated continuous glucose monitoring system, factory calibrated

Device brand name · Continuos glucose monitoring system

Libre 3 Plus Sensor Freestyle: medical device reports filed with FDA

585 reports name it, 2024–2026. Manufacturer given most often on reports: Abbott Diabetes Care. Product code QBJ.

585
device reports naming the brand
0% of all MAUDE reports · about 293 a year
13
reports, 12 months to August 2026
571 in the 12 months before
98.1%
classified as malfunction
98.1% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

FDA's MAUDE database holds 585 reports that name the brand "Libre 3 Plus Sensor Freestyle" (continuos glucose monitoring system), received between July 2024 and May 2026; the manufacturer given most often on reports is Abbott Diabetes Care. Spellings of one product vary from report to report.

13 reports arrived in the 12 months to August 2026, down 98% from 571 in the 12 months before. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases. The event types recorded are malfunction (98.1%) and injury (1.9%); across all integrated continuous glucose monitoring system, factory calibrated reports (product code QBJ) death is recorded in 0% and malfunction in 98.1%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are incorrect, inadequate or imprecise result or readings (97.9%), low readings (0.7%) and device displays incorrect message (0.5%). The patient problems coded most often are hyperglycemia, loss of consciousness and dizziness. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Reports by month, five years

061122Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 0Feb 2022: 0Mar 2022: 0Apr 2022: 0May 2022: 0Jun 2022: 0Jul 2022: 0Aug 2022: 0Sep 2022: 0Oct 2022: 0Nov 2022: 0Dec 2022: 02023Jan 2023: 0Feb 2023: 0Mar 2023: 0Apr 2023: 0May 2023: 0Jun 2023: 0Jul 2023: 0Aug 2023: 0Sep 2023: 0Oct 2023: 0Nov 2023: 0Dec 2023: 02024Jan 2024: 0Feb 2024: 0Mar 2024: 0Apr 2024: 0May 2024: 0Jun 2024: 0Jul 2024: 1Aug 2024: 0Sep 2024: 0Oct 2024: 7Nov 2024: 43Dec 2024: 662025Jan 2025: 84Feb 2025: 110Mar 2025: 122Apr 2025: 37May 2025: 29Jun 2025: 35Jul 2025: 33Aug 2025: 5Sep 2025: 4Oct 2025: 3Nov 2025: 0Dec 2025: 12026Jan 2026: 2Feb 2026: 0Mar 2026: 2Apr 2026: 0May 2026: 1Jun 2026: 0Jul 2026: 0Aug 2026: 0

Reports by the month FDA received them. FDA releases MAUDE data monthly; reports can arrive months after an event, so the newest months grow in later releases.

By year received

02324632024: 11720242025: 46320252026: 52026

Event type and report source

Event type, as classified on the report

Death0%0
Injury1.9%11
Malfunction98.1%574
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%585
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 2,268,325 reports carrying product code QBJ. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Incorrect, inadequate or imprecise result or readings57397.9%10.4%
Low readingsreadings were too low40.7%7.1%
Device displays incorrect message30.5%1%
Unable to obtain readings30.5%0.6%
Device alarm system20.3%0.5%

FDA's device problem codes as entered on the report; one report can carry several. Generic codes such as "no apparent adverse event" are left out.

Patient problems coded

Patient problem (FDA code)ReportsShare
Hyperglycemiahigh blood sugar30.5%
Loss of consciousnesspassing out30.5%
Dizzinesslight-headedness or unsteadiness20.3%
Hypoglycemialow blood sugar20.3%
Blurred vision10.2%
Confusion/ disorientation10.2%
Diaphoresis10.2%
Elevated ketones/ diabetic ketoacidosis10.2%
Vomitingbeing sick10.2%

Patient problem codes are present mainly in reports filed since 2019 and are often blank.

In context

MeasureLibre 3 Plus Sensor FreestyleProduct code QBJAll MAUDE reports
Reports5852,268,32526,136,888
Share of that pool—0%0%
Classified as death, per 1,000 reports009
Classified as injury1.9%1.9%36.2%
Classified as malfunction98.1%98.1%62.3%
Filed by the manufacturer100%99.7%94.9%

Shares are of reports, not of devices in use. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data."

Other brands with product code QBJ

BrandReportsLatest 12 monthsClassified as death
Dexcom G6 Continuous Glucose Monitoring System1,339,56261,7100%
Dexcom G7 Continuous Glucose Monitoring System641,507268,7810%
FreeStyle Libre 3120,677103,0450%
FreeStyle Libre 3 Plus91,34888,3230%
FreeStyle Libre 2 Plus49,66845,8390%
Dexcom G7 15 Day Continuous Glucose Monitoring System13,86913,8690%
Dexcom G6 Glucose Program Continuous Glucose Monitoring System5,6641,7590%
Libre 3 Sensor FreeStyle12,82920%
FreeStyle Libre 2 Plus Sensor3,9292,7990%
Dexcom G6 Mobile Continuous Glucose Monitoring System1,83300%
Dexcom ONE Continuous Glucose Monitoring System1,5501890%
Dexcom G71,3945830.1%
Libre 2 Plus Sensor FreeStyle808100%
Dexcom G7 Sensor4361370.2%
Dexcom G6512390.2%

Ordered by report count for navigation only. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA also states that "common products may have a higher number of adverse events due to the higher total number of people using the product."

Questions about Libre 3 Plus Sensor Freestyle reports

How many FDA reports name Libre 3 Plus Sensor Freestyle?

585 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 13 in the latest 12 months.

What kinds of events are reported?

malfunction (98.1%) and injury (1.9%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

incorrect, inadequate or imprecise result or readings (97.9%), low readings (0.7%), device displays incorrect message (0.5%), unable to obtain readings (0.5%) and device alarm system (0.3%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Libre 3 Plus Sensor Freestyle was at fault?

No. FDA states that "MDR data alone cannot be used to establish rates of events, evaluate a change in event rates over time or compare event rates between devices. The number of reports cannot be interpreted or used in isolation to reach conclusions about the existence, severity, or frequency of problems associated with devices." It adds that the reporting system "has limitations, including the potential submission of incomplete, inaccurate, untimely, unverified, or biased data." FDA adds that "a causal relationship cannot be established between product and reactions listed in a report."

How do I report a problem with a medical device?

Through FDA MedWatch (Form FDA 3500 for health professionals and consumers), or to the manufacturer. See the guide on how to report.

Where this comes from. Counts are built from the openFDA Device Adverse Event (MAUDE) bulk export released 28 Sep 2026, which holds reports FDA received through 31 Aug 2026. Brand, generic and manufacturer names are as written on the reports; product code names come from FDA's device classification. A report counts here when any device it lists carries this brand name after punctuation and capitalisation are normalised. No report narrative, lot number, patient detail or reporter identity is published. See the methodology and sources; FDA's record is authoritative, and corrections are handled within five working days.

Drug data (FAERS) through 30 Jun 2026; device data (MAUDE) through 31 Aug 2026. Not medical advice.