Reported Reactions

Devices › Analyzer, chemistry (photometric, discrete), for clinical use

Device brand name · Immunochemistry analyzer

Cobas E 601 Module: medical device reports filed with FDA

342 reports name it, 2022–2025. Manufacturer given most often on reports: Roche Diagnostics. Product code JJE.

342
device reports naming the brand
0% of all MAUDE reports · about 76 a year
0
reports, 12 months to August 2026
48 in the 12 months before
99.7%
classified as malfunction
95.5% across the product code
0%
classified as death, as reported
0 reports · not verified by FDA

342 medical device reports received by FDA name the brand "Cobas E 601 Module" (immunochemistry analyzer); the manufacturer given most often on reports is Roche Diagnostics; received from January 2022 to February 2025. 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 48 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 (99.7%) and injury (0.3%); across all analyzer, chemistry (photometric, discrete), for clinical use reports (product code JJE) death is recorded in 0% and malfunction in 95.5%. Event type is the reporter's classification of the report, not a verified outcome.

The device problems coded most often are non reproducible results (63.2%), low test results (37.4%) and high test results (33.9%). The patient problems coded most often are appropriate clinical signs, symptoms and conditions term/code not available. 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

01325Sep 2021: 0Oct 2021: 0Nov 2021: 0Dec 2021: 02022Jan 2022: 2Feb 2022: 7Mar 2022: 12Apr 2022: 12May 2022: 8Jun 2022: 25Jul 2022: 14Aug 2022: 19Sep 2022: 13Oct 2022: 12Nov 2022: 10Dec 2022: 142023Jan 2023: 11Feb 2023: 10Mar 2023: 10Apr 2023: 12May 2023: 5Jun 2023: 5Jul 2023: 8Aug 2023: 9Sep 2023: 8Oct 2023: 5Nov 2023: 6Dec 2023: 52024Jan 2024: 9Feb 2024: 5Mar 2024: 5Apr 2024: 5May 2024: 9Jun 2024: 5Jul 2024: 8Aug 2024: 6Sep 2024: 8Oct 2024: 8Nov 2024: 11Dec 2024: 72025Jan 2025: 12Feb 2025: 2Mar 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

0741482022: 14820222023: 9420232024: 8620242025: 142025

Event type and report source

Event type, as classified on the report

Death0%0
Injury0.3%1
Malfunction99.7%341
Other0%0
Not given0%0

Who filed the report

Manufacturer report100%342
Voluntary report0%0
User facility report0%0
Distributor report0%0
Not given0%0

Grey bar: all 79,280 reports carrying product code JJE. Event type is the filer's classification and is not verified by FDA.

Device problems coded

Device problem (FDA code)ReportsShareShare across product code
Non reproducible results21663.2%9.5%
Low test results12837.4%24.5%
High test results11633.9%27.1%
Incorrect, inadequate or imprecise result or readings3911.4%8.9%
Incorrect measurementthe device measured wrongly164.7%1%
Mechanical problema mechanical problem82.3%2.4%
Insufficient device problem information61.8%0.3%
False negative result51.5%1.1%
Output problem51.5%0.5%
False positive result30.9%2.6%
Failure to deliverthe device did not deliver the dose or item20.6%0.1%
Filling problem20.6%0%
Infusion or flow problema problem with flow or infusion20.6%0.1%
Mechanics altered20.6%0%
Chemical problem10.3%0.1%
Circuit failure10.3%0%
Compatibility problem10.3%0%
Decreased sensitivity10.3%0%
Degraded10.3%0%
Imprecision10.3%0.2%

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
Appropriate clinical signs, symptoms and conditions term/code not available10.3%

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

In context

MeasureCobas E 601 ModuleProduct code JJEAll MAUDE reports
Reports34279,28026,136,888
Share of that pool—0.4%0%
Classified as death, per 1,000 reports009
Classified as injury0.3%1.5%36.2%
Classified as malfunction99.7%95.5%62.3%
Filed by the manufacturer100%99.6%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 JJE

BrandReportsLatest 12 monthsClassified as death
Access 2 Immunoassay System4,71900%
Unicel Dxi 800 Access Immunoassay System3,13300%
cobas 6000 c501 module2,7321940.1%
COBAS 6000 C (501) Module2,1691290%
UniCel DxC 600i SYNCHRON Access Clinical System2,975130%
Unicel Dxc 800 Synchron System2,23200%
Architect I2000sr Analyzer1,78500.1%
cobas c 503 analytical unit1,4155410%
Alinity Ci-Series Level Sensor Bulk Solution1,33900%
Alinity c Processing Module1,3113020.1%
Cobas 8000 C 702 Module1,28300%
Cobas E 411 Immunoassay Analyzer1,15800.1%
AU5800 Clinical Chemistry Analyzer1,151690%
Architect Reaction Vessel1,12400%
Dimension Vista 15001,10240%

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 Cobas E 601 Module reports

How many FDA reports name Cobas E 601 Module?

342 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 (99.7%) and injury (0.3%). "Event type" is how the report was classified when filed: death, injury, malfunction or other.

What device problems are coded?

non reproducible results (63.2%), low test results (37.4%), high test results (33.9%), incorrect, inadequate or imprecise result or readings (11.4%) and incorrect measurement (4.7%). 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 Cobas E 601 Module 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.