本研究对患有晚期肺外神经内分泌癌的成年人开放。本研究的目的是找出与单独使用标准化疗(卡铂和依托泊苷)相比,一种名为obrixtamig加标准化疗(卡铂和依托泊苷)的研究药物是否能改善生存期。Obrixtamig是一种类似抗体的分子,可能有助于免疫系统对抗癌症。
适应症:Extrapulmonary Neuroendocrine Cancer (epNEC)
入组条件
纳入标准
- Patients with poorly differentiated unresectable locally advanced or metastatic extrapulmonary neuroendocrine carcinoma (epNEC) with Ki-67 \>20% or mitotic rate mitotic rate with number of mitoses \>20 per 2 mm2, regardless of primary site (including site of unknown origin)
- Patients with tumours with mixed histologies are eligible only if neuroendocrine carcinoma component is predominant and represents more than 70% of the overall tumour tissue
- No prior systemic treatment for unresectable locally advanced or metastatic epNEC (except for the completed one cycle of standard platinum + etoposide). Prior peri-operative chemotherapy or -radiation for curative intention is allowed if at least 6 months have elapsed between completion of this therapy and diagnosis of unresectable locally advanced or metastatic disease
- Patients who have finished one cycle of standard platinum + etoposide regimen as first-line treatment (Cycle 0: etoposide with carboplatin or cisplatin, administered at a minimum dose of cisplatin 75 mg/m2 or carboplatin area under the curve (AUC) 5 and etoposide 80 mg/m2) prior to randomisation
- Patients must comply with criteria for receiving further chemotherapy treatment as first-line standard of care (SoC) treatment within 28 days after the start of the initial chemotherapy (Cycle 0)
- Adequate archival Formalin-Fixed Paraffin-Embedded (FFPE) tumour tissue, as specified in the Laboratory Manual, must be available for central laboratory analysis of Delta-like ligand 3 (DLL3) expression status. Tumours must be positive (as defined in the diagnostic study protocol) for DLL3 expression status assessed by investigational VENTANA DLL3 (SP347) RxDx Assay
- Eastern Cooperative Oncology Group (ECOG) score of 0 or 1
排除标准
- Presence of leptomeningeal disease and/or carcinomatous meningitis
- Patients with diagnosis of Merkel cell carcinoma or medullary thyroid carcinoma
- Patients with neuroendocrine prostate cancer
- Patients with well-differentiated neuroendocrine tumours of any grade according to the world health organization (WHO) classification, 5th edition
- Patients with a history of well differentiated Neuroendocrine tumour (NET) tumour that transformed into poorly differentiated Neuroendocrine carcinoma (NEC)
- Previous treatment with obrixtamig or other DLL3-targeting therapies (e.g. T-cell engager (TcEs), cell therapies, antibody-drug conjugates, or radiopharmaceuticals)
- Previous treatment with anti-PD-1 or programmed death ligand 1 (PD-L1) therapies during the one cycle of standard platinum + etoposide first-line chemotherapy (Cycle 0)
入组条件维持 ClinicalTrials.gov 原始英文登记资料,实际入组资格以研究团队的正式评估与受试者知情同意书为准。资料来源:ClinicalTrials.gov,每两周自动更新,最后同步:2026年10月8日。