Journal of Clinical Oncology, Vol 10, 269-274, Copyright © 1992 by American Society of Clinical Oncology
Interferon alfa-2a and fluorouracil in the treatment of patients with advanced esophageal cancer
D Kelsen, D Lovett, J Wong, L Saltz, M Buckley, P Murray, R Heelan and C Lightdale
Department of Medicine, Memorial Sloan-Kettering Cancer Center, New York, NY 10021.
PURPOSE: The trial was undertaken to determine the response rate to and
toxicities from the combination of interferon alfa-2a (IFN) and
fluorouracil (FU) in patients with advanced esophageal cancer. MATERIALS
AND METHODS: In this prospective phase II trial conducted at a large
tertiary referral cancer center and university hospital, 40 patients with
advanced locoregional, metastatic epidermoid, or adenocarcinoma of the
esophagus were given FU 750 mg/m2 by 24-hour continuous intravenous
infusion days 1 to 5, followed by weekly outpatient bolus FU 750 mg/m2 and
IFN 9 x 10(6) U three times per week from day 1. Dose was attenuated for
fatigue, neurotoxicity, gastrointestinal toxicity, and myelosuppression.
RESULTS: Complete and partial responses were seen in 10 of 37 assessable
patients with esophageal cancer (27%; 95% confidence interval, 0.13 to
0.41). Although substantial, toxicity was tolerable and primarily involved
fatigue and mild myelosuppression. The median duration of response was 6.4
months (range, 2.8 to 14+ months). CONCLUSION: The combination of IFN and
FU is an active regimen in the treatment of advanced esophageal cancer with
a response rate similar to that reported for cisplatin- containing
combinations in similar patient populations. Further studies based on this
combination are indicated.