The objectives of this study are to investigate the efficacy and safety of rAd-p53 gene combined with radio- and chemo-therapy vs. radio- and chemo- therapy only in treatment of unresectable, locally advanced head and neck cancer. This is a phase 2, open labeled, and active-controlled study.

To evaluate benefits of rAd-p53) gene therapy combined with radio- and chemo-therapy in treatment of unresectable, locally advanced head and neck cancer, total of 60 patients with above condition will be randomly assigned to two groups: the experiment group (EG) and the control group (CG). The EG received multi-point injections of rAd-p53 into tumor on day 1, 8 and 15 at a dose of 2 × 10^12 viral particles (VP) in a 21-days cycle. Both EG and CG were given radiotherapy at a total dose of 60 Gy and chemotherapy (Cisplatin 100 mg/m2 IV on days 1 plus paclitaxel 30 mg/m2 IV on day 1, 8 and 15). The patients will be treated until disease progression, withdrawal from study, or untolerated adverse events. study endpoints are efficacy (Progression-free survival, overall survival) and safety variables.

Inclusion Criteria:

1. histopathologically diagnosed head and neck cancer;
2. unresectable, locally advanced;
3. 18 years or older;
4. with an Eastern Cooperative Oncology Group (ECOG) score of 0-2;
5. with normal tests of hemogram, blood coagulation, liver and kidney function; 6.signed the informed consent form.

Exclusion Criteria:

1. Serious blood coagulation disorder, bleeding tendency, platelet < 6 * 1000000000/L;
2. have serious heart, lung function abnormalities or severe diabetes patients;
3. active infection;
4. severe atherosclerosis;
5. AIDS patients;
6. serious thrombotic or embolic events within 6 months;
7. renal insufficiency requiring hemodialysis or peritoneal dialysis;
8. pregnant or lactating women;
9. mental disorder or disease.