Ireland (IE)

What is Continuous Glucose Monitoring (CGM)?

CGM systems continuously measure interstitial fluid glucose levels throughout the day and record this info in the reading device.

Our minute to minute glucose monitoring systems, FreeStyle Libre 2 system and FreeStyle Libre 3 system, use small, discreet and easy to use1 sensors. They provide your patients with real-time glucose readings on their smartphones◊ or readers, day and night.

CGM vs. Blood Glucose Monitoring

CGM offers various benefits for your patients over Blood Glucose Monitoring

Blood Drop icon

Blood Glucose
Monitoring

Measures glucose levels in blood

  • Requires finger pricks

  • Requires manual testing multiple times a day

  • Requires you to carry strips, lancet and meter to test

  • Provides glucose levels at a single moment of time

FreeStyle Libre 2 sensor iconFreeStyle Libre 2 sensor icon

Libre Products

Measures glucose levels in interstitial fluid

  • Painless2, without finger pricks†

  • Automatically measures and updates glucose levels every minute

  • Sensor delivers readings directly to your patients smartphone◊,ǁ or reader

  • Provides the whole picture about both the current glucose level and changes over timeφ

  • Continuous glucose levels help to see the impact of activities and food

  • Proven to reduce time in hypoglycaemia2,4 and improve overall glucose control3,4

How do Libre Products work to provide continuous glucose monitoring?

Libre continuous glucose monitoring technology allows people with diabetes to see their glucose levels in real-time.

1. Patients wear the sensor

Libre sensors* are small, discreet, and easily applied1 to the back of the upper arm. The sensors come with an applicator and use a small, flexible tip that is inserted just under the skin.

2. Sensor measures glucose levels

The sensor continuously measures glucose readings through the whole wear period.

3. Real-time glucose data

Patients who start their Libre 2 or Libre 2 Plus sensor with LibreLink◊, or their Libre 3 Plus sensor with the Libre 3 reader, can see real-time glucose levels and receive optional high or low alarms.¤

Interstitial fluid vs. blood glucose readings

Why don’t interstitial fluid readings and blood glucose readings always match?

Glucose in the blood takes time to make its way into the interstitial fluid so there may be a lag time between the readings.

When glucose levels are stable, the two readings may be very similar. However, if glucose is rising or falling, then they might be different.

When blood glucose levels are stable,
the glucose reading captured by the Libre sensors* in the interstitial fluid, are similar to blood glucose reading.

When blood glucose levels increase,
the glucose reading captured by the Libre sensors* in the interstitial fluid may be below the blood glucose reading.

When blood glucose levels decrease,
the glucose reading captured by the Libre sensors* in the interstitial fluid may be higher than the blood glucose reading.

Watch the video to find out more about the difference between testing interstitial fluid vs. blood glucose:

Accuracy, quality & reliability

How accurate is continuous glucose monitoring?

FreeStyle Libre 2 System

The FreeStyle Libre 2 system is now even better with outstanding 15-day accuracy1

  • 8.2% Overall MARD1

  • 98.9% within / ±1.1mmol/L for adults1

    Percentage of readings within ± 1.1 mmol/L of YSI values for glucose levels < 3.9 mmol/L and ± 20% when ≥ 3.9 mmol/L.

  • 99.9% in Zones A and B of Consensus Error Grid1

FSL2 Mard

FreeStyle Libre 3 System

Now demonstrates a high degree of accuracy and consistent readings for
up to 15 days.1

 

  • 8.2% Overall MARD1

  • 98.9% within / ±1.1mmol/L for adults1

    Percentage of readings within ± 1.1 mmol/L of YSI values for glucose levels < 3.9 mmol/L and ± 20% when ≥ 3.9 mmol/L.

  • 99.9% in Zones A and B of Consensus Error Grid1

Libre 3 Plus sensor consensus error grid for adults

Uncompromising quality

The FreeStyle Libre minute-to-minute glucose monitoring systems* offer uncompromising quality and reliability for you and your patients.

State-of-the-art manufacturing

with quality ensured through rigorous testing and precise factory-calibration.

Smart quality checks

so your patients can rely on every reading. Every sensor conducts over 20,000 self-checks during its wear period.

Proven performance

with documented highest levels of safety and accuracy.1

Trusted data security

 to ensure adherence to local privacy and cybersecurity standards to provide safeguarding of all personal health data.

Commitment to customer care

with a specialist team available to help with simple or complex questions, as well as quick and free of charge sensor replacements for patients.

No finger prick calibration, ever

Calibration is needed for commercially available CGM systems because the sensitivity of each sensor can vary within each batch that is made. The Libre sensors* are calibrated at the factory – so your patients won’t need to calibrate it using a finger prick, ever. This means you and your patients can be confident in the accuracy of the system, and that the accuracy you're receiving is what is reported, without being affected by discrepancies caused by finger prick calibration.

Discover the Libre Products

The #1 sensor-based glucose monitoring system used worldwide6

The FreeStyle Libre 2 System

Minute-to-minute glucose readings sent to your patient's smartphone◊,II to help them manage their diabetes more confidently5

Discover FreeStyle Libre 2 system

The FreeStyle Libre 3 System

Your patients know sooner, can act faster and be ready to avoid hypos with our next-gen continuous glucose monitoring

Discover FreeStyle Libre 3 system

Digital Health Solutions

Discover how you can get the most out of the FreeStyle Libre systems* with our Digital Health Solutions for both you and your patients

Discover Digital Health

References & Disclaimers

Images are for illustrative purposes only. Not real patient or data.

† Finger pricks are required if glucose readings and alarms do not match symptoms or expectations. Glucose alarms are available for FreeStyle Libre 2 sensor users only.

◊ The FreeStyle LibreLink app is only compatible with certain mobile devices and operating systems. Please check the website for more information about device compatibility before using the app. Use of FreeStyle LibreLink may require registration with LibreView. 

ǁ Glucose readings are automatically displayed in the FreeStyle LibreLink app only when your patients' smartphones and FreeStyle Libre 2 sensor or FreeStyle Libre 2 Plus sensor are connected and in range. 

φ FreeStyle Libre 2 reader users need to scan at least once every 8 hours, whereas LibreLink app and Libre 3 reader users need to scan only when Bluetooth® is unavailable, to get glucose readings and fill in up to 8 hours of missing data.

¤ For FreeStyle Libre 3 plus sensor: Alarms notifications will only be received when alarms are turned on and the sensor is within 10 meters unobstructed of the reading device. For FreeStyle Libre 2 & 2 plus sensors: Alarms notifications will only be received when alarms are turned on and the sensor is within 6 meters unobstructed of the reading device.

* FreeStyle Libre sensors refers to the FreeStyle Libre 2, FreeStyle Libre 2 Plus, and FreeStyle Libre 3 Plus sensors. FreeStyle Libre systems refers to the FreeStyle Libre 2 and FreeStyle Libre 3 systems.

1. Data on file, Abbott Diabetes Care, Inc.

2. Haak, T. Diabetes Ther (2017): https://doi.org/10.1007/s13300-016-0223-6

3. Yaron, M. Diabetes Care (2019): https://doi.org/10.2337/dc18-0166.

4. Leelarathna, L. N Engl J Med. (2022): DOI: 10.1056/NEJMoa2205650.

5. Fokkert, M. BMJ Open Diab Res Care (2019): https://doi.org/10.1136/bmjdrc-2019-000809.

6. Data on file, Abbott Diabetes Care, Inc. Based on the number of users worldwide for the FreeStyle Libre portfolio compared to the number of users for other leading personal use sensor-based glucose monitoring systems.

ADC-63792 v5.0

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