- Conditions
- Anatomic Stage I Breast Cancer AJCC v8, Anatomic Stage II Breast Cancer AJCC v8, Breast Ductal Carcinoma In Situ, Invasive Breast Carcinoma
- Interventions
- Biospecimen Collection, Extended Release Metformin Hydrochloride, Monitoring, Nutritional Assessment, Short-Term Fasting
- Procedure · Drug · Other
- Lead sponsor
- M.D. Anderson Cancer Center
- Other
- Eligibility
- 18 Years and older · Female only
- Enrollment
- 120 participants
- Healthy volunteers
- Healthy volunteers not accepted
- Timeline
- 2023 – 2026
- U.S. locations
- 1
- States / cities
- Houston, Texas
Source: ClinicalTrials.gov public record
Updated Jan 4, 2026 · Synced May 22, 2026, 12:50 AM EDT