A Study on the Correlation Between HbA1c Levels and Glycated Albumin Levels in Blood and Saliva Using Average Blood Glucose Levels

A Study on the Correlation Between HbA1c Levels and Glycated Albumin Levels in Blood and Saliva Using Average Blood Glucose Levels - A Study on the Correlation Between HbA1c Levels and Glycated Albumin Levels in Blood and Saliva Using Average Blood Glucose Levels

Status

Active, not recruiting

Phases

Unknown

Study type

Observational

Source

JPRN

Registry ID

JPRN-UMIN000059199

Enrollment

Registered

2025-09-30

Start date

2025-09-30

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

diabetes mellitus

Interventions

None listed

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: - Male and female aged 20 years or older - Diabetes patients with HbA1c of 6% or higher (type of diabetes not specified) - Participants capable of self-installing a CGM sensor and owning a smartphone compatible with the CGM app, as well as installing and using the app - Participants capable of self-collecting fingerstick blood and saliva samples and mailing them

Exclusion criteria

Exclusion criteria: - Participants who do not wish to be informed of any unexpected findings - Participants with HbA1c levels below 6% in screening tests - Participants testing positive for HIV, hepatitis B, hepatitis C, or syphilis in infectious disease tests - Participants with conditions affecting HbA1c or GA levels (e.g., blood disorders, liver/kidney disease) - Participants deemed unable to continue participation following a physician's examination

Design outcomes

Primary

Measure	Time frame
Week 0: height, weight, waist circumference, medication details, fasting blood glucose level, HbA1c level, GA level, liver function, kidney function, anemia, urinalysis Week 4: height, weight, waist circumference, medication details, fasting blood glucose level, HbA1c level, GA level, liver function, kidney function, anemia Week 8: height, weight, waist circumference, medication details, fasting blood glucose level, HbA1c level, GA level, liver function, kidney function, anemia Throughout the entire period: CGM, weekly GA level	—

Measure

Time frame

Week 0: height, weight, waist circumference, medication details, fasting blood glucose level, HbA1c level, GA level, liver function, kidney function, anemia, urinalysis Week 4: height, weight, waist circumference, medication details, fasting blood glucose level, HbA1c level, GA level, liver function, kidney function, anemia Week 8: height, weight, waist circumference, medication details, fasting blood glucose level, HbA1c level, GA level, liver function, kidney function, anemia Throughout the entire period: CGM, weekly GA level

—

Countries

Japan

Contacts

Public ContactMasakazu Aihara

The University of Tokyo Hospital Department of Diabetes and Metabolic Diseases

maihara-tky@umin.ac.jp03-3815-5411

Outcome results