A Phase III Randomized Trial of Metformin vs Placebo in Early Stage Breast Cancer
Last updated on July 2021Recruitment
- Recruitment Status
- Active, not recruiting
- Estimated Enrollment
- 3582
Summary
- Conditions
- Breast Cancer
- Type
- Interventional
- Phase
- Phase 3
- Design
- Allocation: RandomizedIntervention Model: Parallel AssignmentMasking: Triple (Participant, Investigator, Outcomes Assessor)Primary Purpose: Treatment
Participation Requirements
- Age
- Between 18 years and 74 years
- Gender
- Both males and females
Description
This is a multicenter study. Patients are stratified according to hormone-receptor status (estrogen receptor- and/or progesterone receptor- positive vs both receptors negative), body mass index (≤ 30 vs > 30 kg/m²), HER2 status (positive vs negative), and prior chemotherapy (any vs none). Patients a...
This is a multicenter study. Patients are stratified according to hormone-receptor status (estrogen receptor- and/or progesterone receptor- positive vs both receptors negative), body mass index (≤ 30 vs > 30 kg/m²), HER2 status (positive vs negative), and prior chemotherapy (any vs none). Patients are randomized to 1 of 2 treatment arms. Arm I: Patients receive oral metformin hydrochloride twice daily (once daily in weeks 1-4). Treatment continues for up to 5 years in the absence of disease progression or unacceptable toxicity. Arm II: Patients receive oral placebo twice daily (once daily in weeks 1-4). Treatment continues for up to 5 years in the absence of disease progression or unacceptable toxicity. Blood and tumor samples are collected periodically for correlative studies. Patients may complete quality-of-life, physical activity, and diet questionnaires at baseline and at 6, 12, 24, 36, 48, and 60 months. (Sub-set of patients). After completion of study treatment, patients are followed annually.
Tracking Information
- NCT #
- NCT01101438
- Collaborators
- National Cancer Institute (NCI)
- International Breast Cancer Study Group
- ICR-CTSU
- Investigators
- Principal Investigator: Pamela J. Goodwin, MD Mount Sinai Hospital, Canada