A Phase 1, Open-Label, Multicenter, Dose-Escalation and Dose-Expansion Study of ETB-DualNK-01, an Allogeneic Dual-target PSMA/PSCA CAR-NK Cell Product, in Adults With Metastatic Castration-Resistant Prostate Cancer
This example Phase 1 study is designed to evaluate the safety, tolerability, feasibility, and preliminary anti-tumor activity of ETB-DualNK-01, an allogeneic dual-target PSMA/PSCA CAR-NK cell therapy, in adults with metastatic castration-resistant prostate cancer (mCRPC). Part A uses dose escalation to determine the maximum tolerated dose and/or recommended Phase 2 dose. Part B expands at the selected dose in biomarkerconfirmed disease.
• Male participant age 18 years or older.
• Histologically or cytologically confirmed prostate adenocarcinoma with metastatic castration-resistant disease.
• Disease progression by PCWG3 while maintaining castrate testosterone (\<50 ng/dL) with ongoing androgen deprivation therapy or prior orchiectomy.
• Documented PSMA and/or PSCA expression by a validated tumor assay; PSMA PET may support target confirmation when applicable.
• Prior progression on at least one androgen receptor pathway inhibitor such as abiraterone, enzalutamide, apalutamide, or darolutamide; prior taxane, PARP inhibitor, radioligand therapy, or checkpoint inhibitor is allowed.
• ECOG performance status 0 or 1.
• Adequate hematologic, renal, hepatic, cardiac, and pulmonary function per protocol laboratory thresholds.
• At least one measurable lesion by RECIST 1.1 or evaluable bone-predominant disease by PCWG3.
• Life expectancy of at least 12 weeks.
• Ability to understand and sign informed consent and willingness to provide required blood and tissue samples.