PM8002 is a bispecific antibody targeting PD-L1 and VEGF. This study to evaluate the efficacy and safety of PM8002 in combination with etoposide and platinum in first-line treatment of extensive-stage small cell lung cancer

The study is divided into two parts.

The first part is single-arm study, 50 participants were enrolled as of 21 Nov 2023，and recruitment was completed.

The second part is randomized, double-blind study, active controlled design , which will be integrated to another global III study （NCT06712355）.

Inclusion Criteria:

1. Signed informed consent form before any trial-related processes;
2. Age ≥18 years;
3. Histologically or cytologically confirmed ES-SCLC;
4. No prior systemic therapy for ES-SCLC;
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. Histologically or cytologically confirmed mixed SCLC;
2. History of severe allergic disease, severe drug allergy or have known allergy to any component of the study drugs;
3. The toxicity of previous anti-tumor therapy has not been alleviated；
4. Have received anti-platelet therapy within 10 days prior to the first dose of the study drugs;
5. Evidence and history of severe bleeding tendency;
6. History of severe cardiovascular diseases within 6 months;
7. Current presence of uncontrolled pleural, pericardial, and peritoneal effusions;
8. History of allogeneic hematopoietic stem cell transplantation or allogeneic organ transplantation;
9. History of alcohol abuse, psychotropic substance abuse or drug abuse;
10. Human immunodeficiency virus (HIV) infection or known acquired immunodeficiency syndrome;
11. Pregnant or lactating women;
12. 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.