Comparison of the glycemic variability metrics values calculated using FGM vs. CGM sensor glucose measured simultaneously

Comparison of the glycemic variability metrics values calculated using FGM vs. CGM sensor glucose measured simultaneously - The glycemic variability metrics values calculated using FGM vs. CGM sensor glucose measured simultaneously

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

JPRN

Registry ID

JPRN-UMIN000033431

Enrollment

120

Registered

2018-07-18

Start date

2018-07-26

Completion date

Unknown

Last updated

2026-06-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

type 2 diabetes

Interventions

120 patients with type 2 diabetes wear continuous glucose monitor devices (iPro2 and FreeStyle Libre Pro) and 24-h glucose levels were simultaneously measured continiuously. iPro2 is worn on 6 days af

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: Patients with type 2 diabetes who agree wearing CGMs (iPro2 and FreeStyle Libre Pro) simultaneously

Exclusion criteria

Exclusion criteria: Judged to be unsuitable for participation for medical reasons

Design outcomes

Primary

Measure	Time frame
The formulae which predict the following glycemic variability metrics values calculated using CGM sensor glucose (every 5 minutes [iPro2]) from those calculated using FGM sensor glucose (every 15 minutes [FreeStyle Libre Pro]). (if significant association exists) Percentage of time in target range (70~180 mg/dL) Mean absolute glucose (MAG) Glycemic variability percentage (GVP) Mean glucose level Standard deviation (SD) Coefficient of variation (CV) Low blood glucose index (LBGI) High blood glucose index (LBGI)	—

Measure

Time frame

The formulae which predict the following glycemic variability metrics values calculated using CGM sensor glucose (every 5 minutes [iPro2]) from those calculated using FGM sensor glucose (every 15 minutes [FreeStyle Libre Pro]). (if significant association exists) Percentage of time in target range (70~180 mg/dL) Mean absolute glucose (MAG) Glycemic variability percentage (GVP) Mean glucose level Standard deviation (SD) Coefficient of variation (CV) Low blood glucose index (LBGI) High blood glucose index (LBGI)

—

Secondary

Measure	Time frame
The association between glycemic variability metrics values (every 5 minutes [iPro2], 15 (extraction) minutes [iPro2], and 15 minutes [FreeStyle Libre Pro]) (except primary endpoint)	—

Countries

Japan

Contacts

Public ContactSoichi Takeishi

Inuyama Chuo General Hospital Diabetes

souichi19811225@yahoo.co.jp0568-62-8111

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026