Trial reportOral health & preventive dentistry2020
Effect of Selenium on Incidence and Severity of Mucositis during Radiotherapy in Patients with Head and Neck Cancer.
Trial report in Oral health & preventive dentistry, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 2 of them syntheses that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
6 citing papers in PubMed, 2 syntheses or guidelines pooled it, 8 citations in OpenAlex.
- Nutrition Interventions in the Treatment of Gastrointestinal Symptoms during Cancer Therapy: A Systematic Review and Meta-analysis.Advances in nutrition (Bethesda, Md.) · 2025Pooled it
- Efficacy of oral and topical antioxidants in the prevention and management of oral mucositis in head and neck cancer patients: a systematic review and meta-analyses.Supportive care in cancer : official journal of the Multinational Association of Supportive Care in Cancer · 2022Pooled it
- Radiomitigators: Breakthroughs in Post-Radiation Recovery.Antioxidants (Basel, Switzerland) · 2026Review
- Role of Selenium-Dependent Glutathione Peroxidases (Seleno-GPxs) in Radio-Modulation: Lessons for Radiation Oncology.Biological trace element research · 2026Review
- Natural Health Products for Anti-Cancer Treatment: Evidence and Controversy.Journal of personalized medicine · 2024Review
- Interventions for the Prevention of Oral Mucositis in Patients Receiving Cancer Treatment: Evidence from Randomised Controlled Trials.Current oncology (Toronto, Ont.) · 2023Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
purposeOral 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
methodsPatients 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.
resultsSeventy-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).
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.