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Year : 2015  |  Volume : 6  |  Issue : 1  |  Page : 104

Effect of Vitamin E on oxaliplatin-induced peripheral neuropathy prevention: A randomized controlled trial

Department of Radiotherapy and Oncology, Faculty of Medicine, Isfahan University of Medical Sciences, Isfahan, Iran

Correspondence Address:
Mahnaz Roayaei
Department of Radiotherapy and Oncology, Faculty of Medicine, Isfahan University of Medical Sciences, Hezarjerib Avenue, Isfahan
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2008-7802.169021

Clinical trial registration IRCT2015030621350N1

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Background: Peripheral neuropathy is one of the most important limitations of oxaliplatin base regimen, which is the standard for the treatment of colorectal cancer. Evidence has shown that Vitamin E may be protective in chemotherapy-induced peripheral neuropathy. The aim of this study is to evaluate the effect of Vitamin E administration on prevention of oxaliplatin-induced peripheral neuropathy in patients with colorectal cancer. Methods: This was a prospective randomized, controlled clinical trial. Patients with colorectal cancer and scheduled to receive oxaliplatin-based regimens were enrolled in this study. Enrolled patients were randomized into two groups. The first group received Vitamin E at a dose of 400 mg daily and the second group observed, until after the sixth course of the oxaliplatin regimen. For oxaliplatin-induced peripheral neuropathy assessment, we used the symptom experience diary questionnaire that completed at baseline and after the sixth course of chemotherapy. Only patients with a score of zero at baseline were eligible for this study. Results: Thirty-two patients were randomized to the Vitamin E group and 33 to the control group. There was no difference in the mean peripheral neuropathy score changes (after − before) between two groups, after sixth course of the oxaliplatin base regimen (mean difference [after − before] of Vitamin E group = 6.37 ± 2.85, control group = 6.57 ± 2.94; P = 0.78). Peripheral neuropathy scores were significantly increased after intervention compared with a base line in each group (P < 0.001). Conclusions: The results from this current trial demonstrate a lack of benefit for Vitamin E in preventing oxaliplatin-induced peripheral neuropathy.

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