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Int J Radiat Oncol Biol Phys. 2006 Feb 1;64(2):382-91. Epub 2005 Oct 5.

Long-term outcome of concurrent chemotherapy and reirradiation for recurrent and second primary head-and-neck squamous cell carcinoma.

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1
Department of Radiation and Cellular Oncology, University of Chicago Pritzker School of Medicine, Chicago, IL 60637-1470, USA.

Abstract

PURPOSE:

To define favorable pretreatment characteristics for overall survival (OS), progression-free survival (PFS), locoregional control, and freedom from distant metastasis for patients with recurrent and second primary head-and-neck cancer treated with concomitant chemotherapy and reirradiation.

METHODS AND MATERIALS:

Our study population comprised a subset of 115 previously irradiated patients without overt metastases from 304 poor-prognosis head-and-neck cancer patients treated in seven consecutive phase I-II protocols. Of the 115 patients, 49, who had undergone surgical resection, were treated with a median of four cycles of concurrent chemotherapy and reirradiation and 66, who had not undergone surgical resection, were treated with a median of five cycles. The following regimens were used: 5-fluorouracil and hydroxyurea concurrent with reirradiation (FHX) (n=14), cisplatin plus FHX (n=23), paclitaxel plus FHX (n=42), gemcitabine plus paclitaxel and 5-fluorouracil concurrent with reirradiation (n=26), and irinotecan plus FHX (n=10).

RESULTS:

The median lifetime radiation dose was 131 Gy. The median follow-up for surviving patients was 67.4 months (range, 18.5-158.7). The median OS and PFS was 11 and 7 months (range, 0.2-158.7), respectively. The 3-year OS, PFS, locoregional control, and freedom from distant metastasis rate was 22%, 33%, 51%, and 61%, respectively. Multivariate analysis identified reirradiation dose, triple agent (cisplatin-, paclitaxel-, or gemcitabine-containing chemotherapy), and surgery before protocol treatment as independently prognostic for OS, PFS, and locoregional control. Triple-agent chemotherapy was prognostic for freedom from distant metastasis. Nineteen patients died of treatment-related toxicity, five of these of carotid hemorrhage.

CONCLUSION:

For recurrent and second primary head-and-neck cancer, trimodality therapy with surgery, concurrent chemotherapy, and reirradiation for a full second dose offers potential for long-term survival. Owing to the substantial toxicity and lack of an optimal regimen, reirradiation of recurrent head-and-neck cancer should be limited to clinical trials.

PMID:
16213104
DOI:
10.1016/j.ijrobp.2005.07.005
[Indexed for MEDLINE]
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