Abstract

BackgroundOral mucositis (OM) is a common side effect of radiotherapy (RT) that can have severe implications in patients with head and neck cancer (HNC). Traditional Chinese medicine (TCM) formula is widely applied in treating OM, but little substantial evidence exists to clarify it effects. The study intends to determine whether the TCM-based prescription in treating HNC with RT can improve the OM when compared with RT alone. MethodsA single-center, randomized, two-arm parallel-group, open-label controlled clinical trial will be conducted to determine whether the Zi-Yin-Liang-Ge-San (ZYLGS), which contains Rx. Scutellariae, Rx. Glycyrrhizae, Hb. Dendrobii, Rx. Ophiopogonis, and Hb. Menthae Haplocalycis, combined with RT can improve the incidence and severity of OM. Two hundred participants will randomly 1:1 to receive at least 6 weeks of RT plus ZYLGS powder or control. The primary outcome measures are onset, gradation of OM (Common Terminology Criteria for Adverse Events v5.0), and oral pain (visual analogue scale). The secondary outcome measures include nutritional status, the EORTC Quality of Life Core Questionnaire and head and neck module. The Patient-Reported Outcomes version of the Common Terminology Criteria for Adverse Events, serious adverse events, and blood and biochemical analysis will be recorded to evaluate the safety. Visits will be performed for each week during the RT treatment period and then 2 weeks in the follow-up period. DiscussionThe study's result will provide a high-level evidence for TCM-based formulation for HNC patients with RT on the effect of OM prevention and management.

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