Japanese Journal of Clinical Oncology, Vol 27, Issue 3 166-169, Copyright © 1997 by Foundation for Promotion of Cancer Research
N Ebi, K Kubota, Y Nishiwaki, F Hojo, T Matsumoto, R Kakinuma, H Ohmatsu, I Sekine, M Yokosaki, K Gotoh, H Yamamoto and T Kodama
Between January 1985 and August 1991, 159 patients with small cell lung
cancer received first-line chemotherapy and 123 (77%) were responders. Of
these, 88 relapsed, the remainder having died of other or unknown diseases
or being alive without carrying cancer. The relapsed patients were examined
to evaluate the outcome of the treatment for relapsed small cell lung
cancer and to identify the factors that would contribute to the response
rates and the survival durations. Forty-eight of 88 relapsed patients
received second-line chemotherapy. Of the 48, 3 were evaluated as showing a
complete response, 13 as partial response, 9 as no change, 15 as
progressive disease and 8 as not evaluable. The response rate was 33% (95%
confidence interval 20.4-48.4%). The median survival time was 146 days. The
duration and rate of response in first-line chemotherapy affected the
response rates of the second-line chemotherapy, but without statistical
significance (P = 0.058 and 0.067 respectively). Increased response
duration, time off chemotherapy and previous response to first-line
chemotherapy all had a positive effect on the survival times (P < 0.01).
Relapsed small cell lung cancer still shows a response to second-line
chemotherapy without lessening survival time, and thus clinical trials of
new drugs or combination chemotherapeutic regimens for relapsed small cell
lung cancer cases would be reasonably justified. Randomized comparative
studies are warranted for determining the benefits of second-line
chemotherapy for relapsed small cell lung cancer cases.
CASE REPORTS
Second-line chemotherapy for relapsed small cell lung cancer
Division of Thoracic Oncology, National Cancer Center Hospital East, Chiba, Japan.
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