Effect of Selenium on Incidence and Severity of Mucositis during Radiotherapy in Patients with Head and Neck Cancer.

PURPOSE: Oral mucositis (OM) is the most frequent side effect of radiation. Selenium deficiency leads to increased levels of free oxygen radicals and the selenium level tends to fall during radiotherapy. Hence, in this double-blind randomised controlled clinical trial, the effect of selenium was assessed in patients receiving radiation. MATERIALS AND METHODS: Patients with head and neck cancer who were candidates to receive radiation were instructed to use selenium 200 mcg tablets twice daily. The grade of OM was evaluated by the World Health Organization (WHO) grading system on a weekly basis. The selenium level was measured at baseline and at the end of the radiation. RESULTS: Seventy-one patients with head and neck cancer (37 in the selenium group, 34 in the placebo group) were enrolled in the study. The cumulative incidence of OM (grade 1-4) was 97.3% in the selenium and 100% in placebo group (p value: 0.79), and difference in the mean serum selenium level at the end of radiation was not statistically significant between the two groups (p value 0.24) Conclusion: Selenium supplementation does not appear to affect the selenium level as well as the severity and duration of OM. It is supposed that higher doses may be effective in the prevention of RT-mucositis. This trial was registered in the Iranian Registry of Clinical Trials accessible at www.irct.ir (ID No. IRCT2014072718612N1).

Appropriateness of using granulocyte colony-stimulating factor (G-CSF) for primary prophylaxis of febrile neutropenia in solid tumors.

INTRODUCTION: Febrile neutropenia (FN) is one of the dose-limiting adverse effects of chemotherapy. Granulocyte-Colony Stimulating Factors (G-CSFs) minimize the incidence of FN and reduce the risk of neutropenia complications. This study was conducted to address the prescription pattern of G-CSF for primary prophylaxis of FN during the first cycle of chemotherapy in solid tumors. METHOD: This prospective observational study was done to investigate the G-CSF prescription pattern in patients receiving the first cycle of chemotherapy for solid tumors and compare it with the NCCN guideline recommendations. RESULT: Based on the guideline, prophylactic G-CSF administration was indicated in 26 of the 96 patients (27.1%) and all of them received G-CSF. On the other hand, 70 patients (72.9%) did not meet the guideline criteria for prophylaxis, but 60 (62.5%) of them received G-CSF. Seven doses of pegfilgrastim and 165 doses of filgrastim were used inappropriately in the study population, which was associated with an economic burden of about 224.7 million IRR (5350 USD). CONCLUSION: Taken together, inconsistencies with the guideline were observed in this prospective evaluation, suggesting that submitting rationalized policies to decrease G-CSF prescription, especially in patients with a lower or intermediate FN risk, yields substantial cost savings.