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Clinical Trial Summary

RATIONALE: It is not yet known whether zinc sulfate is effective in preventing the loss of ability to taste food in cancer patients who are undergoing radiation therapy for head and neck cancer.

PURPOSE: Randomized phase III trial to determine the effectiveness of zinc sulfate in preventing loss of sense of taste in patients who are undergoing radiation therapy for head and neck cancer.


Clinical Trial Description

OBJECTIVES:

- Determine whether zinc sulfate prolongs the time to onset of altered taste in patients with head and neck cancer undergoing radiotherapy.

- Determine whether this drug decreases the overall incidence of altered taste in these patients.

- Determine whether this drug results in fewer radiotherapy treatment interruptions in these patients.

- Assess the quality of life of patients treated with this drug.

- Determine the toxic effects of this drug in these patients.

OUTLINE: This is a randomized, double-blind, placebo-controlled, multicenter study. Patients are stratified according to planned radiotherapy dose (less than 6,000 cGy vs at least 6,000 cGy), estimated amount of oral mucosa in the radiation field (60% or less vs more than 60%), age (under 50 vs 50 and over), concurrent chemotherapy (yes vs no), and smoking (yes vs no). Patients are randomized to 1 of 2 treatment arms.

- Arm I: Patients receive oral zinc sulfate 3 times daily beginning the first week of radiotherapy.

- Arm II: Patients receive oral placebo 3 times daily beginning the first week of radiotherapy.

Treatment in both arms continues daily during and for 1 month after radiotherapy in the absence of unacceptable toxicity.

Quality of life is assessed at baseline, weekly during treatment, and then at 1, 2, 3, and 6 months after the completion of treatment.

Patients are followed at 1, 2, 3, and 6 months after the completion of treatment and then every 6 months for 1 year. ;


Study Design

Allocation: Randomized, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Investigator), Primary Purpose: Supportive Care


Related Conditions & MeSH terms


NCT number NCT00036881
Study type Interventional
Source Alliance for Clinical Trials in Oncology
Contact
Status Completed
Phase Phase 3
Start date May 2002
Completion date June 2007

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