Evaluation of Diabetic Patients with Breast Cancer Treated with Metformin during Adjuvant Radiotherapy

Purpose. The purpose of this study was to evaluate acute locoregional toxicity in patients with breast cancer receiving concurrent metformin plus radiation therapy. Methods and Materials. Diabetic breast cancer patients receiving concurrent metformin and radiation therapy were matched with nondiabet...

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Main Authors: Adam Ferro, Sharad Goyal, Sinae Kim, Hao Wu, Neil K. Taunk, Devora Schiff, Aneesh Pirlamarla, Bruce G. Haffty
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:International Journal of Breast Cancer
Online Access:http://dx.doi.org/10.1155/2013/659723
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author Adam Ferro
Sharad Goyal
Sinae Kim
Hao Wu
Neil K. Taunk
Devora Schiff
Aneesh Pirlamarla
Bruce G. Haffty
author_facet Adam Ferro
Sharad Goyal
Sinae Kim
Hao Wu
Neil K. Taunk
Devora Schiff
Aneesh Pirlamarla
Bruce G. Haffty
author_sort Adam Ferro
collection DOAJ
description Purpose. The purpose of this study was to evaluate acute locoregional toxicity in patients with breast cancer receiving concurrent metformin plus radiation therapy. Methods and Materials. Diabetic breast cancer patients receiving concurrent metformin and radiation therapy were matched with nondiabetic patients and diabetic patients using an alternative diabetes medication. Primary endpoints included the presence of a treatment break and development of dry or moist desquamation. Results. There was a statistically significant increase in treatment breaks for diabetic patients receiving concurrent metformin when compared to the nondiabetic patients (P value = 0.02) and a trend toward significance when compared to diabetic patients receiving an alternate diabetes medication (P value = 0.08). Multiple logistic regression analysis demonstrated concurrent metformin use as being associated with a trend toward the predictive value of determining the incidence of developing desquamation in diabetic patients receiving radiation therapy compared to diabetic patients receiving an alternate diabetes medication (P value = 0.06). Conclusions. Diabetic patients treated with concurrent metformin and radiation therapy developed increased acute locoregional toxicity in comparison with diabetic patients receiving an alternate diabetes medication and nondiabetic patients. Further clinical investigation should be conducted to determine the therapeutic ratio of metformin in combination with radiation therapy.
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series International Journal of Breast Cancer
spelling doaj-art-9ec9a5176ab845f8a0aa0822be3ae3452025-02-03T01:03:01ZengWileyInternational Journal of Breast Cancer2090-31702090-31892013-01-01201310.1155/2013/659723659723Evaluation of Diabetic Patients with Breast Cancer Treated with Metformin during Adjuvant RadiotherapyAdam Ferro0Sharad Goyal1Sinae Kim2Hao Wu3Neil K. Taunk4Devora Schiff5Aneesh Pirlamarla6Bruce G. Haffty7Department of Radiation Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, 195 Little Albany Street, New Brunswick, New Jersey 08903, USADepartment of Radiation Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, 195 Little Albany Street, New Brunswick, New Jersey 08903, USADepartment of Biostatistics, Rutgers Cancer Institute of New Jersey and Rutgers School of Public Health, New Brunswick, New Jersey 08903, USADepartment of Radiation Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, 195 Little Albany Street, New Brunswick, New Jersey 08903, USADepartment of Radiation Oncology, Memorial Sloan Kettering Cancer Center, New York 10065, USADepartment of Radiation Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, 195 Little Albany Street, New Brunswick, New Jersey 08903, USADepartment of Radiation Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, 195 Little Albany Street, New Brunswick, New Jersey 08903, USADepartment of Radiation Oncology, Rutgers Cancer Institute of New Jersey and Rutgers Robert Wood Johnson Medical School, 195 Little Albany Street, New Brunswick, New Jersey 08903, USAPurpose. The purpose of this study was to evaluate acute locoregional toxicity in patients with breast cancer receiving concurrent metformin plus radiation therapy. Methods and Materials. Diabetic breast cancer patients receiving concurrent metformin and radiation therapy were matched with nondiabetic patients and diabetic patients using an alternative diabetes medication. Primary endpoints included the presence of a treatment break and development of dry or moist desquamation. Results. There was a statistically significant increase in treatment breaks for diabetic patients receiving concurrent metformin when compared to the nondiabetic patients (P value = 0.02) and a trend toward significance when compared to diabetic patients receiving an alternate diabetes medication (P value = 0.08). Multiple logistic regression analysis demonstrated concurrent metformin use as being associated with a trend toward the predictive value of determining the incidence of developing desquamation in diabetic patients receiving radiation therapy compared to diabetic patients receiving an alternate diabetes medication (P value = 0.06). Conclusions. Diabetic patients treated with concurrent metformin and radiation therapy developed increased acute locoregional toxicity in comparison with diabetic patients receiving an alternate diabetes medication and nondiabetic patients. Further clinical investigation should be conducted to determine the therapeutic ratio of metformin in combination with radiation therapy.http://dx.doi.org/10.1155/2013/659723
spellingShingle Adam Ferro
Sharad Goyal
Sinae Kim
Hao Wu
Neil K. Taunk
Devora Schiff
Aneesh Pirlamarla
Bruce G. Haffty
Evaluation of Diabetic Patients with Breast Cancer Treated with Metformin during Adjuvant Radiotherapy
International Journal of Breast Cancer
title Evaluation of Diabetic Patients with Breast Cancer Treated with Metformin during Adjuvant Radiotherapy
title_full Evaluation of Diabetic Patients with Breast Cancer Treated with Metformin during Adjuvant Radiotherapy
title_fullStr Evaluation of Diabetic Patients with Breast Cancer Treated with Metformin during Adjuvant Radiotherapy
title_full_unstemmed Evaluation of Diabetic Patients with Breast Cancer Treated with Metformin during Adjuvant Radiotherapy
title_short Evaluation of Diabetic Patients with Breast Cancer Treated with Metformin during Adjuvant Radiotherapy
title_sort evaluation of diabetic patients with breast cancer treated with metformin during adjuvant radiotherapy
url http://dx.doi.org/10.1155/2013/659723
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