One Phase 2 study (Study 065) and one Phase 3 study (Study 396) were conducted to evaluate the efficacy of oral topotecan versus intravenous topotecan in patients who had relapsed ≥ 90 days after completion of one prior regimen of chemotherapy. (see Table 1) Oral and intravenous topotecan were associated with similar symptom palliation in patients with relapsed sensitive SCLC in patient self- reports on an unblinded symptom scale assessment in each of these two studies.