Phase 1 enrollment completed. Further clinical development terminated

This Phase I study will test the safety and anti-myeloma activity of ascending doses of Descartes-08 (autologous CD8+ T-cells expressing an anti-BCMA chimeric antigen receptor) in eligible patients with active multiple myeloma.

Inclusion Criteria (condensed):

• Multiple myeloma that is double-refractory to a proteasome inhibitor (PI) and an immunomodulatory drug (IMiD) after at least 2 prior lines of therapy OR have failed at least 3 prior lines of therapy
• Measurable disease activity as indicated by serum or urine M-protein, serum free light chain, biopsy-proven plasmacytoma, >5% bone marrow plasma cells.
• Adequate vital organ function as indicated by ANC (>1000/uL), platelet count (>50,000/uL), hemoglobin (>8 g/dL), serum ALT and AST (each <3.0 x upper limit of normal), total bilirubin (<2 mg/dL), creatinine clearance (>30 mL/min), and cardiac ejection fraction (>45%)

Exclusion Criteria (condensed):

NOTE: Prior anti-BCMA or CAR-T therapy is NOT exclusionary

• Active plasma cell leukemia
• Pregnant or lactating
• Active, uncontrolled infection
• Active and severe auto-immune disease
• Active arrhythmia, or obstructive or restrictive pulmonary disease
• Central nervous system disease