About this trial
Phase 1/2 study evaluates the safety, feasibility, and preliminary antitumor activity of allogeneic dual-target CD70/CAIX CAR-NK cells after fludarabine/cyclophosphamide lymphodepletion in adults with advanced or metastatic clear cell RCC that has progressed after standard therapy. The study is designed to determine a recommended dose and schedule, characterize hepatobiliary safety, and explore whether CD70-high, CAIX-high, or dual-high tumors derive the greatest benefit. Biomarker-defined activity signals will be used to guide whether later development should prioritize CD70, CAIX/CA9, or continued dual-targeting.
Eligibility criteria
Qualifiers
Written informed consent and willingness to comply with protocol procedures.
Age >= 18 years at the time of consent.
Histologically confirmed unresectable or metastatic clear cell RCC, or RCC with a clear-cell component, with radiographic progression after standard therapy.
Prior exposure to at least one PD-1 / PD-L1-based regimen and at least one VEGF-pathway targeted regimen, or documented intolerance / unsuitability for available standard systemic options.
Disqualifiers
Active, untreated, or symptomatic central nervous system metastases, leptomeningeal disease, or uncontrolled seizure disorder.
Prior gene-modified cellular therapy (including prior CAR-T, CAR-NK, CAR-NKT, or TCR-engineered therapy) within the protocol-defined washout window.
Prior allogeneic stem cell transplant or solid organ transplant with ongoing clinically significant immunosuppression.
Active autoimmune disease requiring systemic immunosuppressive treatment; physiologic replacement doses are permitted.
Trial design
Treatments tested in this trial
- EB-701/CA9-NK
- Fludarabine