A phase II study of 5-fluorouracil plus high-dose folinic acid in the treatment of recurrent small cell lung cancer.

Fourteen patients with small cell lung cancer (SCLC) previously treated with one or two chemotherapy regimens were entered in this study. 5-Fluorouracil 370 mg/m2 or 300 mg/m2 was given with folinic acid 200 mg/m2 by i.v. rapid infusion on days 1 through 5. Cycles were repeated every 28 days. There were no objective responses. One patient had stable disease for 47 weeks. The overall median survival duration was 23 weeks. Toxicity was comparable to that seen in other studies of 5-fluorouracil plus folinic acid.