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Effects of Metformin on Japanese type 2 diabetes patients: a retrospective study: METRO study

Effects of Metformin on Japanese type 2 diabetes patients: a retrospective study: METRO study - Effects of Metformin on Japanese type 2 diabetes patients: a retrospective study: METRO study

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
JPRN
Registry ID
JPRN-UMIN000040854
Enrollment
200
Registered
2020-06-23
Start date
2020-06-18
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

None listed

Sponsors

Yokohama City University Medical Center
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: 1)Patients with type 2 diabetes who were newly prescribed metformin from January 1, 2008 to November 30, 2019 and can be followed by a 24-week observation period(January 1, 2008-May 20, 2020). 2)Patients who have not stopped/changed/added hypoglycemic agents other than metformin during the 24-week observation period(Regarding insulin, the number of units can be changed and canceled). 3)Patients who have not changed or discontinued other antidiabetic drugs at the timing of introducing metformin.

Exclusion criteria

Exclusion criteria: 1)Patients with type 1 diabetes or secondary diabetes. 2)Patients whose other diabetes drugs are changed, increased, or discontinued at the same time as the start of metformin administration. 3) Patients who are changing diabetes drugs other than metformin (including changing the dose) during the 24-week observation period (changes in the number of insulin units can be incorporated). 4) Patients who are judged to have extremely poor medication compliance based on medical records. 5) Patients with steroid (oral/injection) treatment. 6) Patients with cancer (can be included if they are in follow-up during remission). 7) Patients who were hospitalized during the observation period. 8) Patients with severe infections and trauma. 9) Patients who are judged to be inappropriate as a subject by the doctor's judgment.

Design outcomes

Primary

MeasureTime frame
The change in HbA1c decrease due to differences in metformin introduction timing (1st, 2nd, 3rd, 4th and later).

Secondary

MeasureTime frame
We compare the changes in body weight, biochemical examination, and incidence of adverse events at the time of introduction and at 24 weeks with the difference in the timing of Metformin introduction.

Countries

Japan

Contacts

Public ContactMARINA HARADA

Yokohama City University Medical Center Department of Endocrinology and Diabetes

onyogora@yokohama-cu.ac.jp09053294853

Outcome results

None listed

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