Protected environment–Prophylactic antibiotic program for malignant sarcomas: Randomized trial during remission induction chemotherapy

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Abstract
Fifty-one evaluable patients with malignant sarcomas were randomly allocated to receive three courses of remission induction chemotherapy with cyclophosphamide, vincristine, Adriamycin, and dimethyl triazeno imidazole carboxamide (CYVADIC) on the protected environment-prophylactic antibiotic (PEPA) program24 or as controls.27 The complete remission rate was 33% for the PEPA group and 15% for the control group (P = 0.22). The response rates (complete plus partial) were 71% and 67%, respectively. The durations of response were similar for both groups of patients, but the PEPA patients survived substantially longer (median, 84 weeks vs. 58 weeks). The frequency of infection was significantly lower among the PEPA patients, and the doses of CYVADIC could be escalated more often among these patients. Dosage escalation was associated with a higher complete remission rate and lower fatality rate.