OBJECTIVES: I. Determine the objective response rate in patients with limited or extensive stage small cell lung cancer that relapsed after prior first-line chemotherapy when treated with rebeccamycin analogue as second-line therapy. II. Determine the duration of remission and survival of patients treated with this drug. III. Determine the toxicity of this drug in these patients. OUTLINE: This is a multicenter study. Patients receive rebeccamycin analogue IV over 1 hour on days 1-5. Treatment repeats every 21 days for 6 courses in the absence of disease progression or unacceptable toxicity. Patients are followed annually. PROJECTED ACCRUAL: A total of 20-39 patients will be accrued for this study within 15 months.
Inclusion Criteria: * Diagnosis of small cell lung cancer (SCLC) * Limited or extensive stage * At least 1 unidimensionally measurable lesion at least 20 mm by conventional techniques OR at least 10 mm by spiral CT scan * Sensitive\* relapsed disease after only 1 prior chemotherapy regimen * Brain metastasis allowed provided the following criteria are met: * Stable brain disease * Not receiving irradiation * No steroid requirement to control symptoms * Performance status - ECOG 0-2 * Performance status - Karnofsky 60-100% * At least 12 weeks * Absolute neutrophil count ≥ 1,500/mm\^3 * Platelet count ≥ 100,000/mm\^3 * Hemoglobin ≥ 9.0 g/dL * AST and ALT \< 2.5 times upper limit of normal (ULN) (5 times ULN if liver involvement is present) * Bilirubin ≤ 1.5 mg/dL * Creatinine \< 2.0 mg/dL * Creatinine clearance ≥ 60 mL/min * No New York Heart Association class III or IV heart disease * No symptomatic congestive heart failure * No unstable angina pectoris * No cardiac arrhythmia * Not pregnant or nursing * Negative pregnancy test * Fertile patients must use effective contraception * No active or ongoing infection * No other concurrent uncontrolled illness * No psychiatric illness or social situation that would preclude study compliance * See Disease Characteristics * See Disease Characteristics * See Disease Characteristics * Prior radiotherapy allowed * No other concurrent investigational agents * No other concurrent therapies for SCLC * No concurrent combination antiretroviral therapy for HIV-positive patients
is designated in this study