About this trial
This study aims to evaluate the effectiveness and safety of endoscopic nasopharyngeal pseudomembrane removal in reducing radiation-induced nasopharyngeal necrosis in patients with recurrent nasopharyngeal carcinoma who have received re-irradiation. This is a prospective, single-arm, multicenter interventional study. Participants with recurrent nasopharyngeal carcinoma who develop pseudomembrane reaction during or after re-irradiation will receive endoscopic pseudomembrane removal. Based on published literature, the 2-year incidence of radiation-induced nasopharyngeal necrosis after re-irradiation is approximately 40%. This study expects to reduce the incidence to 20%. The primary outcome measure is the 2-year incidence of nasopharyngeal necrosis after re-irradiation. Secondary outcome measures include: necrosis-free survival, overall survival, progression-free survival, local regional recurrence-free survival, distant metastasis-free survival, as well as safety and adverse events. A total of 40 participants will be enrolled from multiple hospitals in China.
Eligibility criteria
This trial does not accept healthy volunteersQualifiers
Voluntarily sign the informed consent form.
Age between 18 and 80 years.
ECOG performance status ≤ 2.
Prior radical radiotherapy with total dose ≥ 66 Gy.
Disqualifiers
History of other malignancies within the past 5 years, except cured non-melanoma skin cancer or carcinoma in situ of the cervix.
Severe uncontrolled systemic diseases (e.g., uncontrolled infection, severe cardiovascular disease, uncontrolled diabetes).
Pregnant or breastfeeding women.
Known allergy to any equipment or medication used during endoscopy.
Trial design
Single group
Treatments tested in this trial
Endoscopic Nasopharyngeal Pseudomembrane Removal
Procedure/SurgeryEndoscopic visualization of nasopharynx, identification of pseudomembrane, and complete removal using endoscopic instruments.
Treatment groups
Trial outcomes
Primary outcomes
2-Year Incidence of Nasopharyngeal Necrosis
The proportion of participants who develop radiation-induced nasopharyngeal necrosis within 2 years after re-irradiation, as confirmed by endoscopic and/or imaging (MRI/CT) findings.
Secondary outcomes
Necrosis-Free Survival
Time from study enrollment to the first occurrence of nasopharyngeal necrosis or death from any cause, whichever occurs first.
Overall Survival
Time from study enrollment to death from any cause.
Progression-Free Survival
Time from study enrollment to disease progression (local, regional, or distant) or death from any cause, whichever occurs first.
Local Regional Recurrence-Free Survival
Time from study enrollment to first local or regional recurrence of nasopharyngeal carcinoma.
Locations
Sponsors and contacts
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