PM8002 is a bispecific antibody targeting PD-L1 and VEGF. This study will evaluate the efficacy and safety of PM8002 in combination with paclitaxel as second line treatment for SCLC.

This is a phase II, single arm study assessing the efficacy and safety of PM8002 in combination with paclitaxel as second line treatment for SCLC who failed first-line platinum-based chemotherapy with or without checkpoint inhibitors therapy

Inclusion Criteria:

1. Signed informed consent form before any trial-related processes;
2. Age ≥18 years;
3. Histologically or cytologically confirmed SCLC;
4. Advanced SCLC who failed first-line platinum-based chemotherapy with or without checkpoint inhibitors;
5. Have adequate organ function;
6. The Eastern Cancer Cooperative Group (ECOG) performance score of 0 or 1;
7. Life expectancy of ≥12 weeks;
8. Had at least one measurable tumor lesion according to RECIST v1.1.

Exclusion Criteria:

1. History of severe allergic disease, severe drug allergy or have known allergy to any component of the study drugs;
2. Evidence and history of severe bleeding tendency;
3. History of severe cardiovascular diseases within 6 months;
4. Current presence of severe superior vena cava syndrome and spinal cord compression;
5. Current presence of uncontrolled pleural, pericardial, and peritoneal effusions;
6. History of allogeneic hematopoietic stem cell transplantation or allogeneic organ transplantation;
7. History of alcohol abuse, psychotropic substance abuse or drug abuse;
8. Human immunodeficiency virus (HIV) infection or known acquired immunodeficiency syndrome;
9. Pregnant or lactating women;
10. Other conditions considered unsuitable for this study by the investigator.

The data will be published or presented for publications (poster, abstract,articles or papers) or any presentations.

After the trial completed.

NCI is committed to sharing data in accordance with NIH policy.