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  • Title: Clinical phase I study of paclitaxel followed by cisplatin in advanced head and neck squamous cell carcinoma.
    Author: Hanauske AR, Schilling T, Heinrich B, Kau R, Herzog M, Quasthoff S, Bochtler H, Diergarten K, Rastetter J.
    Journal: Semin Oncol; 1995 Dec; 22(6 Suppl 14):35-9. PubMed ID: 8553082.
    Abstract:
    We performed a clinical phase I trial of the combination of paclitaxel (Taxol; Bristol-Myers Squibb Company, Princeton, NJ) and cisplatin in patients with recurrent or metastatic squamous cell carcinoma of the head and neck, using a 3-hour infusion of paclitaxel followed by a 1-hour infusion of cisplatin. Treatment with this combination was repeated every 21 days. Patients who had received prior treatment with platinum-containing regimens were excluded. However, patients who had received two or fewer courses of radiochemotherapy not including platinum compounds were eligible. At present, 21 patients have been entered into this ongoing study. Doses ranged from paclitaxel 135 mg/m2 plus cisplatin 75 mg/m2 to paclitaxel 250 mg/m2 plus cisplatin 100 mg/m2. The maximum tolerated dose was reached at paclitaxel 250 mg/m2 and cisplatin 100 mg/m2. The dose-limiting toxicity of this regimen was myelosuppression (leukopenia, granulocytopenia). Clinically, neurosensory toxicity was moderate. However, preliminary analyses of threshold electrotonus studies indicate the presence of subclinical neurotoxicity in most patients. One patient receiving paclitaxel 200 mg/m2 plus cisplatin 100 mg/m2 developed grade 3 motor neurotoxicity. Profound orthostatic hypotension was observed in five patients receiving paclitaxel 200 mg/m2 plus cisplatin 100 mg/m2 or higher. Neurotoxicity was of delayed onset and slowly reversible, and its severity appeared to be dose related. Twelve patients are currently evaluable for response. Of these, three partial remissions were observed (6, 6+, and 3+ months). Five additional patients had stable disease. We conclude that the combination of paclitaxel administered as a 3-hour infusion followed by cisplatin is an active regimen in advanced head and neck cancer. In addition to myelosuppression, orthostatic hypotension may be a potentially significant clinical toxicity. Clinical phase II studies have been initiated, using a dose of paclitaxel 200 mg/m2 and cisplatin 100 mg/m2.
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