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K. Thomas Robbins, MD; Sandeep Samant, MD; Francisco Vieira, MD; Parvesh Kumar, MD

Arch Otolaryngol Head Neck Surg. 2004;130:28-32.

Objective  To determine the effectiveness of a cytoreduction strategy for oral cancer using a novel trimodal therapy.

Methods  Prospective analysis of 25 patients treated between October 1995 and June 2000 with a protocol named neo-RADPLAT consisting of 4 weekly intra-arterial infusions of cisplatin (150 mg/m²) and intravenous infusions of sodium thiosulfate (9 g/m²), and concurrent radiation therapy (2 daily doses of 50 Gy) followed by tumor nidusectomy (a conventional surgery) at 8 weeks. Five patients had T2 lesions and 20 patients had T3 lesions; the clinical neck cancer stages were N0 in 12 patients, N1 in 9, and N2 in 4 (2 N2a, 1 N2b, and 1 Nc); and there were 17 tumors of the oral cavity (11 of the oral tongue, 5 of the retromolar trigone, and 1 of the floor of mouth) and 8 of the oropharynx (4 of the tonsillar fossa, 3 of the base of tongue, and 1 of the soft palate).

Results  Twenty patients (80%) had a complete response to chemoradiation in the primary site and 11 (79%) had a complete response in the neck. Among the 19 patients who had a tumor nidusectomy after chemoradiation, 5 had residual cancer and required a conventional resection. With regard to major toxicity, there were 6 cases of grade 3 and 1 case of grade 4 hematologic effects, 1 case of grade 3 neurologic effect, 1 case of grade 3 gastrointestinal effect, 1 case of grade 5 cardiac effect, as well as 16 cases of grade 3 mucositis. With a median follow-up of 56 months (range, 28-84 months), the 5-year estimates for overall survival, disease-specific survival, and locoregional control were 54%, 64%, and 74%, respectively. Fourteen patients remain without disease, 6 have died of the disease, and 5 have died of other causes.

Conclusions  Preoperative intra-arterial chemoradiation cytoreduction followed by limited surgery is effective for controlling oral cancer. This tissue-sparing and reduced-radiation strategy may also preserve oral function.

From the Departments of Otolaryngology and Radiation Oncology, University of Tennessee, Health Science Center, Memphis. The authors have no relevant financial interest in this article.

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