Reported Reactions

Devices › Alternate controller enabled insulin infusion pump

Device brand name · Alternate controller enabled insulin infusion pump

iLet Bionic Pancreas: medical device reports filed with FDA

62,887 reports name it, 2023–2026. Manufacturer given most often on reports: Beta Bionics. Product code QFG.

62,887
device reports naming the brand
0.2% of all MAUDE reports · about 21,588 a year
60,771
reports, 12 months to August 2026
1,719 in the 12 months before
76.4%
classified as malfunction
88.9% across the product code
0.1%
classified as death, as reported
42 reports · not verified by FDA

62,887 medical device reports received by FDA name the brand "iLet Bionic Pancreas" (alternate controller enabled insulin infusion pump); the manufacturer given most often on reports is Beta Bionics; received from August 2023 to August 2026. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

60,771 reports arrived in the 12 months to August 2026, up 3435% from 1,719 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 (76.4%), injury (23.5%) and death (0.1%); across all alternate controller enabled insulin infusion pump reports (product code QFG) death is recorded in 0% and malfunction in 88.9%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are insufficient device problem information (31.5%), improper or incorrect procedure or method (20%) and intermittent communication failure (10.3%). The patient problems coded most often are hyperglycemia, hypoglycemia and shaking/tremors. 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

04,1348,268Sep 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: 3Sep 2023: 2Oct 2023: 6Nov 2023: 4Dec 2023: 112024Jan 2024: 13Feb 2024: 21Mar 2024: 32Apr 2024: 33May 2024: 55Jun 2024: 55Jul 2024: 76Aug 2024: 86Sep 2024: 74Oct 2024: 94Nov 2024: 94Dec 2024: 822025Jan 2025: 93Feb 2025: 72Mar 2025: 72Apr 2025: 127May 2025: 80Jun 2025: 80Jul 2025: 124Aug 2025: 727Sep 2025: 2,210Oct 2025: 2,278Nov 2025: 3,725Dec 2025: 8,2682026Jan 2026: 7,545Feb 2026: 8,100Mar 2026: 6,185Apr 2026: 4,805May 2026: 4,124Jun 2026: 4,254Jul 2026: 4,640Aug 2026: 4,637

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

022,14544,2902023: 2620232024: 71520242025: 17,85620252026: 44,2902026

Event type and report source

Event type, as classified on the report

Death0.1%42
Injury23.5%14,776
Malfunction76.4%48,068
Other0%1
Not given0%0

Who filed the report

Manufacturer report100%62,880
Voluntary report0%7
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 1,297,995 reports carrying product code QFG. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Insufficient device problem information19,83231.5%3.2%
Improper or incorrect procedure or method12,55320%1%
Intermittent communication failure6,46810.3%0.5%
Fracturea broken bone3,9826.3%0.6%
Key or button unresponsive/not working2,5604.1%1.4%
Failure to infuse1,9803.1%0.2%
Obstruction of flow1,9013%6.4%
Charging problem1,4592.3%7.4%
Leak/splashthe device leaked1,2882%0.7%
Fitting problem8921.4%0.5%
Premature discharge of battery7961.3%0.8%
Mechanical jam7721.2%0.1%
Loss of or failure to bond6751.1%6.1%
Complete blockage6551%0.1%
Patient device interaction problem4680.7%0%
Fluid/blood leak3880.6%1.6%
Display difficult to read3610.6%0%
Failure to disconnect3590.6%0%
Breakthe device broke1960.3%1.1%
Failure to read input signal1950.3%0%

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 sugar26,09841.5%
Hypoglycemialow blood sugar14,34022.8%
Shaking/tremors1,5882.5%
Dizzinesslight-headedness or unsteadiness1,4352.3%
Confusion/ disorientation1,2382%
Nauseafeeling sick1,2001.9%
Headachehead pain1,1011.8%
Polydipsia1,0441.7%
Elevated ketones/ diabetic ketoacidosis9601.5%
Diaphoresis8731.4%
Fatiguetiredness8401.3%
Loss of consciousnesspassing out7661.2%
Appropriate clinical signs, symptoms and conditions term/code not available6891.1%
Vomitingbeing sick6841.1%
Dry mouthdry mouth6421%

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

In context

MeasureiLet Bionic PancreasProduct code QFGAll MAUDE reports
Reports62,8871,297,99526,136,888
Share of that pool—4.8%0.2%
Classified as death, per 1,000 reports109
Classified as injury23.5%11.1%36.2%
Classified as malfunction76.4%88.9%62.3%
Filed by the manufacturer100%99.9%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 QFG

BrandReportsLatest 12 monthsClassified as death
t:slim X2 Insulin Pump with Control-IQ Technology584,236129,1190%
t:slim X2 Insulin Pump with Interoperable Technology (with t:connect mobile app)267,71611,5020%
Omnipod 5 Pod72,51613,9130.1%
t:slim X2 Insulin Pump with Control-IQ+ Technology65,29857,9360%
Omnipod 5 Pods53,25334,5930%
Omnipod 5 Automated Insulin Delivery System50,52332,4780%
t:slim X2 Insulin Pump with Interoperable Technology37,1368650%
Tandem Mobi Insulin Pump with Control-IQ+ Technology36,50631,6740%
Tandem Mobi Insulin Pump with Interoperable Technology27,9521,5950%
Tandem Mobi Insulin Pump with Control-IQ Technology15,1549,5530%
MiniMed 780G US System BLE Connect 3.0 mg/dL112,81757,1400.1%
t:slim X2 Insulin Pump with Basal-IQ Technology142,6411,9160%
Omnipod 5 Controller2,6189260.8%
T Slim X2 Insulin Pump With Interoperable Technology With T Connect Mobile A2,55500%
PUMP MMT-1884L MM780G BLE 3.0 mg/ml34,8469,7030.1%

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 iLet Bionic Pancreas reports

How many FDA reports name iLet Bionic Pancreas?

62,887 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 60,771 in the latest 12 months.

What kinds of events are reported?

malfunction (76.4%), injury (23.5%) and death (0.1%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

insufficient device problem information (31.5%), improper or incorrect procedure or method (20%), intermittent communication failure (10.3%), fracture (6.3%) and key or button unresponsive/not working (4.1%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (100%) and voluntary reports (0%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that iLet Bionic Pancreas 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.