Purpose: DA-125 is a novel anthracycline derivative developed by Dong-A Pha
rmaceutical Company, Korea. Preclinical studies have suggested that DA-125
has greater efficacy and less toxicity than doxorubicin. The maximum tolera
ble dose has been shown to be 100 mg/m(2) in a phase I trial. The purpose o
f this phase II study was to evaluate the efficacy and toxicity of DA-125 i
n patients with non-small-cell lung cancer (NSCLC). Methods: Chemotherapy-n
aive patients with histologically confirmed measurable NSCLC which was not
curable by surgery or radiation therapy because of metastasis, local invasi
on, or recurrence were eligible for this trial. Between May 1996 and April
1997, 20 patients entered into this trial and were treated with DA-125 admi
nistered as a 5-min intravenous infusion every 3 weeks. The dose of DA-125
was 80 mg/m(2) during the first cycle, and was adjusted to between 60 and 1
00 mg/m(2) according to the observed toxicities during subsequent cycles. R
esults: Among 19 evaluable patients, there was no objective response to DA-
125. Anemia, leukopenia and granulocytopenia of grade 3 or over were observ
ed in 4%, 6% and 12% of chemotherapy cycles, respectively. There were no tr
eatment-related deaths. With regard to nonhematologic toxicities, diarrhea,
infection and elevated serum alkaline phosphatase of grade 3 or over were
observed in 2% of cycles, but were tolerable and reversible. Conclusion: DA
-125 at these doses and in this schedule was highly tolerable, but was not
active in patients with advanced NSCLC.