The role of IC is not yet clear as there is no published phase III trial comparing the standard treatment of CRT versus IC followed by CRT. Two individual trials have shown a survival benefit for IC followed by local treatment over local treatment alone [16][17][18]. However, the local treatment in those trials did not consist of CRT but rather of surgery plus radiotherapy or radiotherapy alone.More recently, phase III studies from the EORTC/TAX study group comparing two IC regimens consisting of cisplatin and fluorouracil with or without docetaxel followed by CRT in patients with unresectable squamous cell carcinoma of the head and neck found a significant improvement in the progression free and overall survival with inclusion of docetaxel. A phase III trial GORTEC 2000-01 [19] comparing docetaxel, cisplatin and fluorouracil (TPF) with cisplatinfluorouracil as induction chemotherapy demonstrated that TPF was superior to the cisplatin-fluorouracil regimen in terms of overall RR (80.0 versus 59.2%) and 3-year actuarial larynx preservation rate Abstract Objective: Phase 3 studies are underway to compare induction chemotherapy (IC) followed by concomitant chemoradiation (CRT) with CRT alone in advanced head and neck cancer. The purpose is to report the outcome of patients with advanced head and neck cancer treated at Centre Hospitalier de l'Université de Montréal (CHUM) with IC followed by CRT.
Methods:From March 1998 to December 2007, 56 consecutive patients were treated for advanced squamous cell carcinoma of the head and neck with high-dose IC followed by CRT. Sixteen patients with carcinoma of the nasopharynx, paranasal sinuses or nasal cavity were excluded. Patients presented with either T4 (60%) or N3 (60%) disease. Outcomes were computed using Kaplan-Meier curves. The number of IC cycles were compared with logrank tests.
Results:The 2 year estimates of OS, DFS, LRC and DMFS rates were 58%, 46%, 78% and 75% respectively. At last follow-up, we observed 17 patients with relapse of which 10 were at a distant site. When stratified by the number of IC cycles, a DMFS rate of 87% was observed for 1-2 cycles vs 49% for 3 cycles, p=0.05.
Conclusions:Despite intensive treatment with platinum based IC and CRT, prognosis for this highly advanced population of T4 or N3 cancers is poor. The number of IC cycles seem to influence the rate of DM. Further trials are needed to answer the question regarding IC followed by CRT vs CRT alone. Targeted therapies might also yield more promising results.