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The effect of metformin on breast density

Comparison of metformin and placebo on breast mammography density in healthy women over 40 years

Status
Recruiting
Phases
Phase 3
Study type
Interventional
Source
IRCT
Registry ID
IRCT20100706004329N9
Enrollment
146
Registered
2020-12-15
Start date
2020-11-24
Completion date
Unknown
Last updated
2021-01-05

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

Conditions

Breast density.

Interventions

Sponsors

Tehran University of Medical Sciences
Lead Sponsor

Eligibility

Sex/Gender
Female
Age
40 Years to No maximum

Inclusion criteria

Inclusion criteria: Female gender Age over 40 years

Exclusion criteria

Exclusion criteria: Suspicion of malignancy Used of drugs that affect metabolic status, such as weight, glucose, and lipid-lowering agents During the study or three months before the study History of breast cancer Proven or suspected pregnancy and lactation during the intervention Other medical conditions, such as cardiovascular disease, epilepsy, renal or hepatic disorders Contraindications for metformin use (such as hypersensitivity to biguanides, acidemia, heart disease, alcohol consumption, gastroparesis, hepatic disease, hyperthyroidism or hypothyroidism, severe iron deficiency anemia, renal impairments) History of unwanted and intolerable side effects of metformin (such as abdominal pain, chest pain, chills, cholestasis, diarrhea, dizziness, increased liver enzymes, severe headache, hepatitis, hypoglycemia, megaloblastic anemia, myalgia, nausea, Palpitations, rash, rash, vomiting) Suffering from hormonal disorders and metabolic diseases such as hypo or hyperthyroidism, metabolic syndrome, diabetes, severe hyperlipidemia, galactorrhea

Design outcomes

Primary

MeasureTime frame
Breast density. Timepoint: At the beginning of the study (before the intervention) and six months after the intervention. Method of measurement: Mammography scan.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactSadaf Alipour

Tehran University of Medical Sciences

salipour@sina.tums.ac.ir00982177888751 - 00982177883195

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026