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No previous study reported the treatment outcome of stage III nasopharyngeal carcinoma (NPC) patients. The investigators try to investigate the long-term treatment outcome of stage III NPC patients and do risk grouping by plasma Epstein-Barr virus (EBV) DNA assay for future therapy improvement.
The stage III NPC patients were the majority group of the patient population of NPC. But most clinical trials focused on the treatment of American Joint Committee on Cancer (AJCC) 7th edition stage IVA/IVB treatment for high risk of recurrence or metastasis. No previous study reported the treatment outcome of stage III NPC patients. The investigators tried to investigate the long-term treatment outcome of stage III NPC patients and do risk grouping by plasma EBV DNA assay for future therapy improvement.
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| Measure | Description | Time Frame |
|---|---|---|
| Overall survival (OS) | Diagnosis to death | 5 year |
| Measure | Description | Time Frame |
|---|---|---|
| Progression-free survival (PFS) | Diagnosis to death to recurrence or metastasis | 5 year |
| Distant metastasis failure-free survival (DMFFS) | Diagnosis to death to distant metastasis |
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Inclusion Criteria:
Exclusion Criteria:
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Tissue proven stage III NPC patients and received curative treatment in our institute. Pre-treatment and post-radiotherapy plasma EBV DNA will be obtained.
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| Name | Affiliation | Role |
|---|---|---|
| Jin-Ching Lin, MD.PhD. | Department of Radiation Oncology, Taichung Veterans General Hospital | Principal Investigator |
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| ID | Term |
|---|---|
| D000077274 | Nasopharyngeal Carcinoma |
| ID | Term |
|---|---|
| D002277 | Carcinoma |
| D009375 | Neoplasms, Glandular and Epithelial |
| D009370 | Neoplasms by Histologic Type |
| D009369 | Neoplasms |
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We collected the pre-treatment and post-treatment plasma EBV DNA. The plasma EBV DNA assay was analyzed by real time PCR.
| 5 year |
| Locoregional failure-free survival (LRFFS) | Diagnosis to death to locoregional failure | 5 year |
| D009303 |
| Nasopharyngeal Neoplasms |
| D010610 | Pharyngeal Neoplasms |
| D010039 | Otorhinolaryngologic Neoplasms |
| D006258 | Head and Neck Neoplasms |
| D009371 | Neoplasms by Site |
| D009302 | Nasopharyngeal Diseases |
| D010608 | Pharyngeal Diseases |
| D009057 | Stomatognathic Diseases |
| D010038 | Otorhinolaryngologic Diseases |