Reported Reactions

Devices › Hexokinase, glucose

Device brand name · Blood glucose monitoring device

Accu-Chek Comfort Curve: medical device reports filed with FDA

4,120 reports name it, 1999–2006. Manufacturer given most often on reports: Roche Diagnostics. Product code CFR.

4,120
device reports naming the brand
0% of all MAUDE reports · about 152 a year
0
reports, 12 months to August 2026
0 in the 12 months before
37.9%
classified as malfunction
83.6% across the product code
0.6%
classified as death, as reported
26 reports · not verified by FDA

4,120 medical device reports received by FDA name the brand "Accu-Chek Comfort Curve" (blood glucose monitoring device); the manufacturer given most often on reports is Roche Diagnostics; received from May 1999 to October 2006. 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, and none 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 injury (61.3%), malfunction (37.9%) and death (0.6%); across all hexokinase, glucose reports (product code CFR) death is recorded in 0.1% and malfunction in 83.6%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are replace (85.7%), high test results (49.3%) and incorrect or inadequate test results (37.7%). The patient problems coded most often are treatment with medication(s), therapy/non-surgical treatment, additional and hospitalization required. 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

No report naming Accu-Chek Comfort Curve was received in the five years to August 2026; the latest was received in October 2006.

By year received

07301,4601999: 2519992000: 14020002001: 14520012002: 25920022003: 27220032004: 73420042005: 1,46020052006: 1,0852006

Event type and report source

Event type, as classified on the report

Death0.6%26
Injury61.3%2,525
Malfunction37.9%1,561
Other0.1%3
Not given0.1%5

Who filed the report

Manufacturer report99.8%4,112
Voluntary report0.2%8
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 37,537 reports carrying product code CFR. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Replace3,53285.7%22.8%
High test results2,03049.3%18%
Incorrect or inadequate test results1,55537.7%56.7%
High readingsreadings were too high2215.4%5.3%
Device expiration issue2034.9%1.5%
Low test results1914.6%7%
Labeling, missing1182.9%0.2%
Improper or incorrect procedure or method711.7%0.7%
Method, improper/incorrect521.3%0.3%
Expiration date error471.1%0.1%
Incorrect, inadequate or imprecise result or readings431%1%
Device displays incorrect message360.9%4.9%
Display or visual feedback problem240.6%0.5%
Malfunction240.6%0.4%
Mislabeled230.6%0.1%
Low readingsreadings were too low160.4%2.6%
False reading from device non-compliance150.4%0.5%
Calibration error140.3%0.7%
Other (for use when an appropriate device code cannot be identified)110.3%0.9%
Device issuea problem with the device100.2%1.3%

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
Treatment with medication(s)1,55837.8%
Therapy/non-surgical treatment, additional1,50736.6%
Hospitalization required1,39133.8%
Blood glucose, low1,38433.6%
Loss of consciousnesspassing out68216.6%
Blood glucose, high47711.6%
Hypoglycemialow blood sugar2455.9%
Other (for use when an appropriate patient code cannot be identified)1864.5%
Therapy/non-surgical treatment, aborted/stopped1463.5%
Sweating1182.9%
Shaking/tremors862.1%
Dizzinesslight-headedness or unsteadiness781.9%
Seizures761.8%
Weakness611.5%
Confusion/ disorientation571.4%

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

In context

MeasureAccu-Chek Comfort CurveProduct code CFRAll MAUDE reports
Reports4,12037,53726,136,888
Share of that pool—11%0%
Classified as death, per 1,000 reports619
Classified as injury61.3%14.2%36.2%
Classified as malfunction37.9%83.6%62.3%
Filed by the manufacturer99.8%99%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 CFR

BrandReportsLatest 12 monthsClassified as death
One Touch Ultra16,42500%
Fasttake4,17300%
One Touch Profile3,03200%
One Touch Basic Enhanced2,74100%
Surestep5,32300.1%
One Touch Basic2,24400%
Precision Qid Glucose Meter56100.4%
Accu-Chek Advantage1,29000.5%
Glucometer Dex44200%
Medisense Companion 2 Meter39000%
One Touch Ultrasmart65800%
Quick Check One27600%
Precision Xtra Monitor31800.6%
One Touch Basic Original24300%
Induo32600.3%

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 Comfort Curve reports

How many FDA reports name Accu-Chek Comfort Curve?

4,120 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?

injury (61.3%), malfunction (37.9%) and death (0.6%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

replace (85.7%), high test results (49.3%), incorrect or inadequate test results (37.7%), high readings (5.4%) and device expiration issue (4.9%). These are FDA's device problem codes as entered on the report.

Who files these reports?

manufacturer reports (99.8%) and voluntary reports (0.2%). Manufacturers and user facilities are required to report; voluntary reports come from health professionals and the public.

Do these reports show that Accu-Chek Comfort Curve 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.