Phase II Trial for the Evaluation of Trimetrexate in Patients with Inoperable Squamous Carcinoma of the Esophagus

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Abstract
EST 2287 was a Phase II clinical trial conducted by the Eastern Cooperative Oncology Group (ECOG) designed to evaluate trimetrexate in patients with advanced, measurable, inoperable squamous cell carcinoma of the esophagus. The drug was given at a dose of 12 mg/m2 daily for 5 days every 21 days to patients with carcinoma of the esophagus. The purpose of this study was to evaluate treatment efficacy in terms of tumor response and to assess the toxicity. According to a two-stage stopping rule, the study closed after 15 patients had entered. There were no responses to treatment, and median survival from study entry was 4.3 months. There was one treatment-related death caused by infection. One patient experienced life-threatening hematologic toxicity. Overall severe or worse toxicity occurred in more than half of the patients. It is concluded that additional trials of trimetrexate at this dose and schedule in patients with carcinoma of the esophagus are not warranted.

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