Individualized Carbon-Ion Radiotherapy for Patients With Locally Recurrent Nasopharyngeal Carcinoma
Locally Recurrent Nasopharyngeal Carcinoma
About this trial
This is an interventional treatment trial for Locally Recurrent Nasopharyngeal Carcinoma focused on measuring Locally recurrent nasopharyngeal carcinoma, Individualized carbon-ion radiotherapy, Predictive model of mucosal necrosis, Survival, Toxicity
Eligibility Criteria
Inclusion Criteria:
- Aged between 17-70 years.
- Pathologically diagnosed as WHO type 2/3 nasopharyngeal carcinoma.
- Failed previous definitive radiotherapy at least 6 months ago.
- Only had 1 previous course of radiotherapy.
- Eastern Cooperative Oncology Group score: 0-1.
- Adequate laboratory values within 30 dyas of enrollment to study defined as follows: 1) neutrophil > 2000/mm^3; 2) platelet > 100,000/mm^3; 3) total bilirubin < 1.5mg/dl; 4) alanine aminotransferase/aspartate aminotransferase < 1.5 upper limit of normal; 5) SCr < 1.5mg/dl; creatinine clearance rate > 60ml/min.
- Willing to accept adequate contraception for women with childbearing potential.
- Willing to sign the written informed consent; Informed consent must be signed before the enrollment in the trial.
Exclusion Criteria:
- Presence of distant metastasis.
- Without measurable lesion.
- Previous history of malignant tumor (within 5 years) or simultaneous existence of multiple primary tumors.
- Accompanied with severe major organ dysfunction.
- Presence of mental disease that may influence the understanding of informed consent.
Sites / Locations
- Shanghai Proton and Heavy Ion Center
Arms of the Study
Arm 1
Arm 2
Active Comparator
Experimental
Standardized CIRT
Individualized CIRT
Patients will receive standardized CIRT with a dose of 63 GyE/21 fx.
A previously predictive model will be used to predict the chance of developing mucosal necrosis after salvage carbon-ion radiotherapy, and individualized dose prescription will be given. A dose of 60 GyE/20 fx, 63 GyE/21 fx and 66 GyE/22 fx will be given to patients with high, moderate and low risk of developing mucosal necrosis, respectively.