A novel organ preservation protocol for advanced carcinoma of the larynx and pharynx

To pilot a targeted chemoradiation protocol for patients with advanced carcinoma of the larynx and pharynx that would circumvent upper aerodigestive tract dysfunction related to major oncologic surgery.

Weekly intra-arterial infusions of supradose cisplatin (150 mg/m2 per week x 4) rapidly delivered to the tumor bulk, simultaneous intravenous sodium thiosulfate for systemic drug neutralization, and conventional external-beam irradiation (1.80-2.00 Gy per fraction x 35) were used. Between February 1991 and April 1994, 42 patients were treated who would otherwise have required a major resection of the tongue base, pharyngeal wall, or larynx.

Tumor response, toxic effects, disease control above the clavicle, preservation of the larynx, maintenance of oral nutrition, and overall and disease-related 2-year survival.

Three complications were related to the weekly transfemoral superselective intra-arterial procedures performed 160 times. Grade 3 to 4 chemotoxic effects were infrequent, occurring in 9 (5.5%) of 160 cycles, and only 1 patient required a radiotherapy break because of severe mucositis. A complete response in the primary site was obtained in 36 (86%) of 42 patients, 2 of whom had residual disease in the neck. Median follow-up was 13 months (range, 3-46 months). To date, there have been 5 recurrences: 2 regional and 3 distant. The 2-year overall and disease-related survival was 64% and 76%, respectively. The rate of disease control above the clavicle at 2 years was 86%.

We believe this chemoradiation protocol represents an effective management scheme for patients with advanced head and neck cancer while minimizing dysfunction and possibly improving survival.