Reported Reactions

Devices › Glucose oxidase, glucose

Device brand name · Blood glucose monitoring test strips

Accu-Chek Instant Test Strips: medical device reports filed with FDA

421 reports name it, 2006–2024. Manufacturer given most often on reports: Roche Diabetes Care. Product code CGA.

421
device reports naming the brand
0% of all MAUDE reports · about 21 a year
0
reports, 12 months to August 2026
42 in the 12 months before
96.4%
classified as malfunction
91% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

421 medical device reports received by FDA name the brand "Accu-Chek Instant Test Strips" (blood glucose monitoring test strips); the manufacturer given most often on reports is Roche Diabetes Care; received from June 2006 to November 2024. Brand names are as the reporter or manufacturer wrote them, so one product can appear under several spellings.

0 reports arrived in the 12 months to August 2026, against 42 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 (96.4%) and injury (3.6%); across all glucose oxidase, glucose reports (product code CGA) death is recorded in 0.2% and malfunction in 91%. 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 (80.3%), imprecise or erratic results (7.8%) and high test results (6.2%). The patient problems coded most often are hypoglycemia, hyperglycemia 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

01529Sep 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: 10Nov 2022: 15Dec 2022: 192023Jan 2023: 21Feb 2023: 9Mar 2023: 12Apr 2023: 11May 2023: 14Jun 2023: 12Jul 2023: 16Aug 2023: 13Sep 2023: 11Oct 2023: 19Nov 2023: 20Dec 2023: 102024Jan 2024: 29Feb 2024: 24Mar 2024: 21Apr 2024: 14May 2024: 22Jun 2024: 10Jul 2024: 23Aug 2024: 18Sep 2024: 13Oct 2024: 23Nov 2024: 6Dec 2024: 02025Jan 2025: 0Feb 2025: 0Mar 2025: 0Apr 2025: 0May 2025: 0Jun 2025: 0Jul 2025: 0Aug 2025: 0Sep 2025: 0Oct 2025: 0Nov 2025: 0Dec 2025: 02026Jan 2026: 0Feb 2026: 0Mar 2026: 0Apr 2026: 0May 2026: 0Jun 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

01022032006: 320062007: 320072022: 4420222023: 16820232024: 2032024

Event type and report source

Event type, as classified on the report

Death0%0
Injury3.6%15
Malfunction96.4%406
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%421
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 7,612 reports carrying product code CGA. 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 readings33880.3%12.3%
Imprecise or erratic results337.8%0.6%
High test results266.2%10.4%
Low test results153.6%8.6%

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
Hypoglycemialow blood sugar286.7%
Hyperglycemiahigh blood sugar102.4%
Dizzinesslight-headedness or unsteadiness41%
Loss of consciousnesspassing out30.7%
Fatiguetiredness20.5%
Shaking/tremors20.5%
Convulsion/seizure10.2%
Elevated ketones/ diabetic ketoacidosis10.2%
Headachehead pain10.2%
Nauseafeeling sick10.2%

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

In context

MeasureAccu-Chek Instant Test StripsProduct code CGAAll MAUDE reports
Reports4217,61226,136,888
Share of that pool—5.5%0%
Classified as death, per 1,000 reports029
Classified as injury3.6%7.8%36.2%
Classified as malfunction96.4%91%62.3%
Filed by the manufacturer100%98.2%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 CGA

BrandReportsLatest 12 monthsClassified as death
Surestep5,32300.1%
Carelink Personal Mmt-73333,6802330%
Accu-Chek Inform77500.1%
CardioChek Plus analyzer21870%
Truetrack1,65200%
Vitros Chemistry Products Glu Slides19230%
Sftwr Css7201 Guardian Android App95520%
Software Css7200 Grdn Ios App1,09920%
Ascensia Breeze19400.5%
Unicel Dxc 800 Pro Synchron Chemistry Analyzer89800%
Accu-Chek Advantage1,29000.5%
Paradigm Real-Time Insulin Infusion Pump126,28200.3%
Accu-Chek Instant4161830%
Unicel Dxc 800 Synchron System2,23200%
Unicel Dxc 800 Pro Synchron Clinical System40800%

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 Accu-Chek Instant Test Strips reports

How many FDA reports name Accu-Chek Instant Test Strips?

421 medical device reports in the openFDA MAUDE release of 28 Sep 2026, covering reports received through August 2026; 0 in the latest 12 months.

What kinds of events are reported?

malfunction (96.4%) and injury (3.6%). "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 (80.3%), imprecise or erratic results (7.8%), high test results (6.2%) and low test results (3.6%). 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 Accu-Chek Instant Test Strips 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.