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Clinical Trial
. 2000 Feb 1;46(3):535-9.
doi: 10.1016/s0360-3016(99)00402-2.

Oral Glutamine to Alleviate Radiation-Induced Oral Mucositis: A Pilot Randomized Trial

Clinical Trial

Oral Glutamine to Alleviate Radiation-Induced Oral Mucositis: A Pilot Randomized Trial

E Y Huang et al. Int J Radiat Oncol Biol Phys. .


Purpose: To evaluate the influence of oral glutamine on radiation-induced oral mucositis in the radiotherapy of head and neck cancer.

Methods and materials: From July 1997 through June 1998, 17 patients with head and neck cancer receiving primary or adjuvant irradiation were randomized to either glutamine suspension (16 g in 240 ml normal saline) (n = 8) or placebo (normal saline) (n = 9) arm. Patients were instructed to swish the test solutions (30 ml) four times per day. All patients received half-mouth irradiation at least. Patients were treated 1.8 Gy per fraction daily, 5 days a week. We evaluated the grading of oral mucositis daily fraction at each day of treatment until 45 Gy/25 fractions. World Health Organization (WHO) step analgesic medication and body weight change were compared between the two arms.

Results: The duration of objective oral mucositis > or = Grade 1 (p = 0.0097), Grade 2 (p = 0.0232), and Grade 3 (p = 0.0168) was shorter in the glutamine arm. Mean maximum grade of objective oral mucositis was less severe in the glutamine arm (1.6 vs. 2.6) (p = 0.0058). Glutamine did not reduce the duration and severity of subjective oral mucositis except for duration > or = Grade 3 (p = 0.0386). In the analysis of mean maximum WHO step of analgesic medication, there was no statistical difference (p = 0.5374) between the two arms. Mean body weight change was also not significantly different (p = 0.8070).

Conclusions: Oral glutamine may significantly reduce the duration and severity of objective oral mucositis during radiotherapy. It may shorten the duration of > or = Grade 3 subjective mucositis.

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