Active Symptom Control Alone Or In Combination With Oral Topotecan In Patients With Relapsed Resistant Small Cell Lung Cancer

Inclusion Criteria: * Received one prior chemotherapy regimen only. * Documented partial or complete response to first-line therapy. * Documented relapse of limited or extensive SCLC at least 45 days after the cessation of first-line chemotherapy. * Not considered suitable for further intravenous chemotherapy. * Considered to have adequate bone marrow reserve. * Performance Status of 0, 1 or 2. Exclusion Criteria: * Pregnant or lactating. * Received more than one prior regimen of chemotherapy. * Uncontrolled vomiting. * Brain metastases. * Active uncontrolled infection. * Received previous treatment with HYCAMTIN. * Received an investigational product within 30 days.