Zinc sulfate in the prevention of radiation-induced oropharyngeal mucositis: a prospective, placebo-controlled, randomized study.

What Was Tested

This randomized controlled trial looks at Zinc Sulfate.

To determine the effect of oral zinc sulphate supplementation on radiation-induced oropharyngeal mucositis in patients with head-and-neck cancer.

Who Took Part

The abstract describes 14 patients taking part.

The age groups tagged for this paper are adults, middle-aged adults and older adults, both men and women.

Thirty patients with head-and-neck cancer were randomly assigned to receive either zinc sulfate or placebo.

Primary tumors were localized in the larynx in 14 patients, in the nasopharynx in 4, in the oral cavity in 4, in a salivary gland in 1, in the maxillary sinus in 1, in neck nodes (lymphoma presenting primarily) in 3 and in neck metastases from an unknown primary in 3.

How the Study Was Run

The design is described as randomized, double-blind and placebo-controlled.

Because people in this Zinc Sulfate study were split into groups at random, differences between the groups are less likely to reflect who happened to join each one.

As a double-blind Zinc Sulfate study, the assignments were hidden from both participants and investigators until the end.

The comparison arm used a placebo, so changes seen with Zinc Sulfate could be set against what happens without it.

Oral mucositis was assessed by two independent physicians, experts in radiation oncology, using the Radiation Therapy Oncology Group Acute Radiation Morbidity Scoring criteria.

What Was Measured

Topics PubMed links to this paper include Head and Neck Neoplasms, Mouth Mucosa, Oral Hygiene, Radiation Injuries, Radiation-Protective Agents, Statistics, Nonparametric and Stomatitis.

What This Means in Plain Language

The paper is a randomized, double-blind and placebo-controlled study of Zinc Sulfate in 14 patients.

With fewer than 40 people, it is a small study, so it is better read as an early signal for further research than as a settled answer.

Results are reported in around 6 sentences of the abstract; we leave them to the paper itself rather than summarise them.

The publication is from 2004 (International journal of radiation oncology, biology, physics), a journal based in United States.

More context: all human trials.