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Study identifier: NCT06763328 Synced from ClinicalTrials.gov · July 28, 2026
● Recruiting

Metformin for the Treatment of Insulin Resistance in Women With Stage I-III Breast Cancer Completing Chemotherapy

Condition: Anatomic Stage I Breast Cancer AJCC v8 · Anatomic Stage II Breast Cancer AJCC v8 · Anatomic Stage III Breast Cancer AJCC v8  ·  Sponsor: City of Hope Medical Center

PhasePhase 3
Planned participants80
Who can joinFemale, 18 Years to no upper limit
Healthy volunteersNo

About this study

This phase III trial evaluates how often women develop insulin resistance and type-2 diabetes and compares metformin with usual care to usual care alone in treating insulin resistance in women with stage I-III breast cancer after chemotherapy. Insulin resistance occurs when cells stop responding to insulin and is a risk factor for developing diabetes and heart disease. Higher levels of insulin have been shown to be associated with aggressive breast cancer. Metformin hydrochloride decreases the amount of glucose (a type of sugar) released into the bloodstream from the liver and increases the body's use of the glucose. Metformin as well as standard of care diet and exercise education is known to lower blood sugar. However, chemotherapy may accelerate metabolic disorders, such as high blood sugar, and the impact of metformin in these breast cancer survivors is not known. Giving metformin with usual care may be more effective than usual care alone in preventing or reversing insulin resistance in women with stage I-III breast cancer after chemotherapy.

This description comes directly from the study's public registry record.

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Contact details are listed per location below or on the registry record.

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Locations (3)

City of Hope Medical CenterDuarte, California, United StatesRecruiting
UC San Diego Moores Cancer CenterLa Jolla, California, United StatesNot Yet Recruiting
University of California-RiversideRiverside, California, United StatesNot Yet Recruiting

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Source record: clinicaltrials.gov/study/NCT06763328