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  • Title: [Two head and neck cancer patients who responded to chemotherapy consisting of only TS-1].
    Author: Mikami Y, Tsukuda M, Kawai S, Kagesato Y, Tanigaki Y, Horiuchi C, Mochimatsu I.
    Journal: Gan To Kagaku Ryoho; 2003 Oct; 30(10):1473-7. PubMed ID: 14584280.
    Abstract:
    We report two head and neck cancer patients who responded to TS-1. Case 1, a 52-year-old man was admitted to our department a diagnosis of supraglottic laryngeal cancer (T3N2cM0) on January 25, 2000. Concurrent chemoradiotherapy consisting of 2 courses of chemotherapy and radiation therapy at 70.2 Gy was administered. After the treatment, a biopsy showed a remaining cancer in the primary lesion. Since the patient refused to undergo surgery, the patient was followed up at the outpatient clinic using UFT at 400 mg/day. Because pulmonary metastasis was detected by chest CT, administration of TS-1 was started. TS-1 was administered at the conventional dose of 120 mg/day for 4 weeks followed by a 2-week rest. According to a CT conducted after 2 courses, the mass in the lung field disappeared and the clinical outcome was judged to be a CR. The TS-1 administration is still continuing, and the patient's condition also remains a CR. Case 2 was a patient with highly-differentiated adenocarcinoma in the ethmoid sinus (T3N2bM0). The patient was inoperable and was given radiation therapy of 64.8 Gy. Because of no change of the tumor after radiotherapy, TS-1 was administered at 60 mg x 2/day for 4 weeks followed by a 2-week rest. After TS-1 was administered for 3 courses, a CT showed a remarkable regression of the tumor resulting in a PR for the primary and the neck lesion. Upper gastrointestinal endoscopy during the 4th course detected a gastric ulcer of the A1 stage, and the patient was immediately admitted to the hospital. The ulcer was an adverse reaction of grade 3, which was improved by conservative therapy. TS-1 was restarted with a dose of 100 mg/day on April 11. No particular adverse reaction has been observed since then. The patient has received 13 courses of TS-1 and is still receiving TS-1. No clear tumor has been observed, and the clinical outcome is considered to be a CR. TS-1 is considered to be an excellent oral anticancer drug in terms of its anti-tumor effect and the patient's QOL.
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