Outcome and prognostic factors in patients with small cell lung cancer who receive third-line chemotherapy


Aims and background. It is reported that about 20% of patients with small cell lung cancer (SCLC) receive third-line chemotherapy. We conducted a retrospective study to investigate the outcome and prognostic factors of patients with SCLC who receive third-line chemotherapy.
Methods and study design. The medical records of patients with SCLC who received third-line chemotherapy at our institution were reviewed. Overall survival (OS) from the initiation of third-line chemotherapy was evaluated, and the association between OS and patient characteristics was assessed by the log-rank test.
Results. A total of 73 patients with SCLC were treated with cytotoxic drugs between 2004 and 2012, and 19 patients received third-line chemotherapy. Median OS from initiation of third-line chemotherapy was 8.5 months. Patients with higher body mass index (BMI) (P = 0.0071), lower levels of lactate dehydrogenase (LDH) (P = 0.0036), higher levels of hemoglobin (P = 0.048), longer time to progression (TTP) from the initiation of second-line treatment (P = 0.0036), and better response to second-line treatment (P = 0.029) had longer duration of OS.
Conclusions. It is suggested that TTP and tumor response in second-line chemotherapy, serum levels of LDH and hemoglobin, and BMI at initiation of third-line chemotherapy could be possible prognostic factors.

Tumori 2014; 100(5): 507 - 511




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