A Phase 1 Dose Escalation Study of ZG006 in Patients With Small Cell Lung Cancer

Inclusion Criteria:

* Small cell lung cancer (SCLC), who failed or intolerant to available standard treatments;
* Tissue sample positive for DLL3 expression;
* Life expectancy ≥ 3 months;
* Eastern Cooperative Oncology Group (ECOG) Performance Status of 0 or 1;
* Female and Male patients must agree to use a reliable form of contraception during the study treatment period and for at least 6 months after the last dose of the study drug.

Exclusion Criteria:

* Patients having received any of the following treatments:

  * Chemotherapy, biotherapy, endocrine therapy (except for hormone replacement), and biological targeted medicines ≤ 4 weeks before the study entry. Local palliative radiotherapy and a small molecule targeted therapy ≤ 2 weeks (or 5 half-lives, whichever is longer) before the study entry;
  * Systemic immunosuppressive medications, such as corticosteroid (doses \> 10 mg/day prednisone or equivalent dose) within 14 days prior to the study entry;
  * Use of any vaccines against viral infections (COVID-19, influenza, varicella, etc.) within 4 weeks of study entry;
* Patients received any blood transfusion, EPO, G-CSF, albumin infusion and renal replacement therapy within 14 days prior to study entry;
* A history of severe, life-threatening immune-mediated adverse events or infusion-related reactions during previous anti-tumor immunotherapy, including events that led to permanent discontinuation of treatment;
* Active infection (such as acute bacterial infection, tuberculosis, active hepatitis B/C, active syphilis, or active human immunodeficiency virus infection);
* Known allergy to other mAbs or any antibody excipients; the history of a severe allergic reaction, anaphylactoid or other hypersensitivity reactions to humanized antibodies or fusion proteins;
* A female who is pregnant or nursing;
* Patients were deemed unsuitable for participating in the study by the investigator for any reason.