Role of Adding Metformin to Neoadjuvant Chemotherapy in Patients With Breast Cancer (METNEO)
Summary
Metformin, the widely prescribed oral hypoglycemic drug, is well known for its established efficacy, favorable safety profile, and low cost. Metformin has recently received increasing attention because of its potential antitumorigenic effects that are thought to be independent of its hypoglycemic effects. It has been extensively studied in preclinical models, which have implicated several molecular pathways in its antitumor activity. Metformin was proved to have anti-proliferative and apoptotic effects on tumor cells.Moreover, metformin enhances the T-cell mediated immune response to tumor tissue and fights metastases. Also, epidemiological studies have shown that metformin, but not other antidiabetic drugs, reduces cancer incidence and improves survivability in diabetic cancer patients. The proposed research in this application will investigate two prime questions with regards to the combined use of metformin together with traditional neoadjuvant chemotherapy in breast cancer patients. First, the hypothesis that the simultaneous use of metformin along with doxorubicin/cyclophosphamide/paclitaxel neoadjuvant protocol produces better antitumor outcomes will be tested. Second, the study will examine if the improved apoptotic effect of such regimen is paralleled by exaggerated stimulatory influences on apoptosis biomarkers.
Timeline
- Start
- 2019-10-29
- Primary completion
- 2022-04-02
- Completion
- 2022-06-28
Publications
- Serageldin MA, El-Bassiouny NA, El-Kerm Y, Aly RG, Helmy MW, El-Mas MM, Kassem AB. A randomized controlled study of neoadjuvant metformin with chemotherapy in nondiabetic breast cancer women: The METNEO study. Br J Clin Pharmacol. 2024 Dec;90(12):3160-3175. doi: 10.1111/bcp.16193. Epub 2024 Aug 7.
- Serageldin MA, Kassem AB, El-Kerm Y, Helmy MW, El-Mas MM, El-Bassiouny NA. The Effect of Metformin on Chemotherapy-Induced Toxicities in Non-diabetic Breast Cancer Patients: A Randomised Controlled Study. Drug Saf. 2023 Jun;46(6):587-599. doi: 10.1007/s40264-023-01305-4. Epub 2023 May 2.
Drugs
| Evaluation | Drug | Modality | Dose | Route |
|---|---|---|---|---|
| Subject | Metformin | Small molecule | 850 mg | Oral |
| Background | Cyclophosphamide | Other / unclassified | 600 mg/m2 | Intravenous |
| Background | Doxorubicin | Other / unclassified | 60 mg/m2 | Intravenous |
| Background | Paclitaxel | Small molecule | 80 mg/m2 | Intravenous |