Chemotherapy for recurrent or metastatic carcinoma of the nasopharynx. A review of the Princess Margaret Hospital experience.
There is little information about the ability of chemotherapy to achieve palliation for patients with recurrent or metastatic carcinoma of the nasopharynx. Therefore, the authors reviewed the records of all patients who had received chemotherapy for this disease at the Princess Margaret Hospital between 1970 and 1989. Seventy patients were identified who had measurable disease and had not received prior systemic therapy. Forty patients received single agents or nonaggressive drug combinations, most of them before 1980. There were three complete responses (CR) and seven partial responses (PR) among this group for a response rate of 25% (95% confidence limits, 13% to 41%). Thirty patients received either drug combinations that were active in aggressive lymphomas or cisplatin-based combinations. There were 7 CR and 14 PR among this group for a response rate of 70% (95% confidence limits, 51% to 85%). Two patients who were treated aggressively are still alive and in complete remission at 3 and 12 years. This type of retrospective review cannot exclude bias caused by patient selection. However, in the absence of randomized trials, the authors suggest the following: (1) carcinoma of the nasopharynx should be considered a malignant neoplasm that is distinct from squamous cell cancer in other sites of the head and neck; and (2) selected patients with recurrent or metastatic carcinoma of the nasopharynx should receive aggressive combination chemotherapy.