Presurgical trial of metformin in overweight and obese patients with newly diagnosed breast cancer

  • Kevin Kalinsky
  • , Katherine D. Crew
  • , Susan Refice
  • , Tong Xiao
  • , Antai Wang
  • , Sheldon M. Feldman
  • , Bret Taback
  • , Aqeel Ahmad
  • , Serge Cremers
  • , Hanina Hibshoosh
  • , Matthew Maurer
  • , Dawn L. Hershman

Research output: Contribution to journalArticlepeer-review

75 Scopus citations

Abstract

Introduction: We conducted a presurgical trial to assess the tissue-related effects of metformin in overweight/obese breast cancer (BC) patients. Methods: Metformin 1,500 mg daily was administered to 35 nondiabetics with stage 0-III BC, body mass index (BMI) ≥ 25 kg/m2. The primary endpoint was tumor proliferation change (i.e., ki-67). Tumor proliferation change was compared to untreated historical controls, matched by age, BMI, and stage. Results: There was no reduction in ln(ki-67) after metformin (p = .98) or compared to controls (p = .47). There was a significant reduction in BMI, cholesterol, and leptin. Conclusion: Despite no proliferation changes, we observed reductions in other relevant biomarkers.

Original languageEnglish (US)
Pages (from-to)150-157
Number of pages8
JournalCancer Investigation
Volume32
Issue number4
DOIs
StatePublished - Apr 2014
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Oncology
  • Cancer Research

Keywords

  • Breast cancer
  • Hispanic
  • Insulin resistance
  • Ki-67
  • Metformin
  • Presurgical

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