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Multicenter, Phase III Trial Comparing Selenium Supplementation

Multicenter, Phase III Trial Comparing Selenium Supplementation With Observation in Gynecologic Radiation Oncology: Follow-Up Analysis of the Survival Data 6 Years After Cessation of Randomization.

Integr Cancer Ther. 2014 Nov;13(6):463-7

Authors: Muecke R, Micke O, Schomburg L, Glatzel M, Reichl B, Kisters K, Schaefer U, Huebner J, Eich HT, Fakhrian K, Adamietz IA, Buentzel J, German Working Group Trace Elements and Electrolytes in Oncology—AKTE

Abstract

Purpose. In 2010, we reported that selenium (Se) supplementation during radiation therapy (RT) is effective for increasing blood Se levels in Se-deficient cervical and uterine cancer patients, and reduced the number of episodes and severity of RT-induced diarrhea. In the current study, we examine whether of Se supplementation during adjuvant RT affects long-term survival of these patients. Patients and Methods. Former patients were identified and questioned with respect to their health and well-being. Results. A total of 81 patients were randomized in the initial supplementation study, 39 of whom received Se (selenium group, SeG) and 42 of whom served as controls (control group, CG). When former patients were reidentified after a median follow-up of 70 months (range = 0-136), the actuarial 10-year disease-free survival rate in the SeG was 80.1% compared to 83.2% in the CG (P = .65), and the actuarial 10-year overall survival rate of patients in the SeG was 55.3% compared to 42.7% in the CG (P = .09). Conclusions. Our extended follow-up analysis demonstrates that Se supplementation had no influence on the effectiveness of the anticancer irradiation therapy and did not negatively affect patients’ long-term survival. In view of its positive effects on RT-induced diarrhea, we consider Se supplementation to be a meaningful and beneficial adjuvant treatment in Se-deficient cervical and uterine cancer patients while undergoing pelvic radiation therapy.

PMID: 25015649 [PubMed – in process]

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Filed Under: Clinical Trials / Studies Tagged With: Cervical Cancer, Oncology, Selenium, Uterine Cancer

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Silicon as an Essential Trace Element in Animal Nutrition
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READ FULL ARTICLE HERE (PDF)

Published in 1899

The Physiological Role of Mineral Nutrients

Author: Loew, Oscar, b. 1844 Volume: no.18 Subject: Plant physiology; Plants Assimilation; Minerals Publisher: Washington : G.P.O. Year: 1899 Possible … Read this book online

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