Spots Global Cancer Trial Database for Effect of N-Acetyl Cysteine (NAC) on the Oral Microbiome

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Trial Identification

Brief Title: Effect of N-Acetyl Cysteine (NAC) on the Oral Microbiome

Official Title: Effect of N-Acetyl Cysteine (NAC) on the Oral Microbiome and on the Degree of Mucositis Developed in Response to Concurrent Chemotherapy and Radiotherapy in Patients With Locally Advanced Squamous Cell Carcinoma of the Head and Neck

Study ID: NCT03982537

Conditions

Head and Neck Cancer

Interventions

N-Acetyl-L-Cysteine dietary supplement

Chemotherapy and Radiation

Study Description

Brief Summary: This is a Phase II treatment, randomized 3:1 ratio, open label clinical trial to study the effect of short duration administration of N-acetyl cysteine on oral microbiome and on mucositis caused by concurrent chemotherapy and radiotherapy.

Detailed Description: Primary Objective(s) I. To determine whether short duration pre-treatment with N-acetyl cysteine reduces the rate of severe mucositis that develops during the standard concurrent chemoradiotherapy in patients with locally advanced Head and Neck Squamous Cell Cancer. Secondary Objective(s) I. Identify the effect of N-acetyl cysteine on the oral microbiome. II. Identify the effect of short duration pre-treatment with N-acetyl cysteine on the duration and delay onset of severe radiation-induced mucositis developed during the standard concurrent chemoradiotherapy in patients with locally advanced Head and Neck Squamous Cell Cancer. III. Bank saliva and blood for future studies of biomarkers that will be correlated with changes in the oral microbiome and the duration of mucositis. IV. Determine if there is any effect of short duration pre-treatment with N-acetyl cysteine on tumor response to standard CRT as measured within the first year of treatment. V. Determine the relationship between human papillomavirus status and smoking status and the baseline microbiome as well as well as the possible differential effect of N-acetyl cysteine on the structure of the oral microbiome in human papillomavirus positive patients vs smokers. VI. Gather data on the incidence, severity, duration and onset of severe radiation-induced mucositis as well as data on saliva and blood biomarkers and evaluation of the oral microbiome in patients receiving standard of care primary or adjuvant chemoradiotherapy to gather preliminary data for use in designing future Phase 3 studies.