EBV Positive Nasopharyngeal Carcinoma Treated With Concurrent Chemo-radiotherapy With or Without Anti-Viral Drug

Inclusion Criteria:

• Confirmed histopathologic diagnosis of nasopharyngeal squamous cell carcinoma, types WHO II-III.
• Stage II-IVB
• Requiring primary concomitant Radiotherapy and Chemotherapy.
• No head and neck surgery of the primary tumor or lymph nodes except for incisional or excisional biopsies.
• Positive PCR-DNA EBV
• ≥ 18 years of age
• ECOG performance status 0-1
• WBC ≥ 4,000/µl, platelets ≥ 100,000/µl; serum creatinine ≤ 1.6 mg/dl or 24 hr. calculated creatinine clearance ≥ 60 ml/min (see Section 3.1.6).
• Pre-treatment evaluation of tumor extent and tumor measurement.
• Nutritional and general physical condition must be considered compatible with the proposed radio-therapeutic treatment.
• Signed study-specific consent form prior to study entry Assessment.

Exclusion Criteria:

• Prior radiotherapy to the head and neck or any prior chemotherapy ≤ 6 months prior to study entry.
• Other malignancy except non-melanoma skin cancer or a carcinoma not of head and neck origin ≤ 5 years
• Evidence of distant metastasis.
• on any experimental therapeutic cancer treatment.
• major medical or psychiatric illness.
• pregnant females.
• Age ≤ 18 years old