Topical Chlorhexidine Spray for the Prevention of Acute Radiation Dermatitis in Patients With Nasopharyngeal Carcinoma:

Topical Chlorhexidine Spray for the Prevention of Acute Radiation Dermatitis in Patients With Nasopharyngeal Carcinoma: A Phase III Randomized Double-Blind Single-Center Trial

This study investigated the effects of topical chlorhexidine spray on the incidence, severity, and quality of life during radiotherapy in nasopharyngeal carcinoma patients.

Inclusion Criteria:

Histologically or cytologically confirmed nasopharyngeal carcinoma. Clinical stage II-III disease with N≥1, according to the UICC/AJCC 9th edition. Planned to receive first-course definitive chemoradiotherapy, with a total radiotherapy dose of 60-70 Gy.

Able to communicate and complete study assessments. Willing to participate and able to provide written informed consent. Eligible based on baseline assessments performed before chemoradiotherapy.

Exclusion Criteria:

• History of or current psychiatric disorder, cognitive impairment, or other severe organic disease.

Presence of another concomitant malignancy. Receipt of any other prophylactic intervention for radiation dermatitis. Pre-existing skin disease before chemoradiotherapy. Known hypersensitivity or allergy to chlorhexidine.