Is symptom improvement in patients with small cell lung cancer (SCLC) associated with clinical response? An analysis using the Patient Symptom Assessment Lung Cancer (PSALC) scale in a randomized trial comparing oral topotecan (OT) with best supportive care (BSC)

7725 Background: SCLC is a highly symptomatic disease with poor survival in prior treated patients. To evaluate the role of chemotherapy, a recent multicenter trial randomized 141 patients with prior treatment to receive either OT + BSC or BSC only. This was the first trial to use a BSC control group in SCLC while evaluating survival, response and symptoms. Survival data were reported (O'Brien et al JCO 2006; median survival of 25.9 weeks on OT + BSC vs 13.9 weeks on BSC, p = 0.01). 51% on OT had “disease control” (partial response [PR] + stable disease [SD]); no patient on BSC was reported to have a major response, although response was not an endpoint for this group. Trials have shown that those with progressive disease have the most symptom worsening, as occurred in this trial. The objective of this analysis is to determine if patients with PR report greater symptom relief than those with SD, in that SD can reflect a more indolent course in some patients while PR is due to treatment effect only. Method...