ALLO-715: UNIVERSAL Study Targeting B Cell Maturation Antigen (BCMA) in Relapsed/Refractory Multiple Myeloma

Primary objective

  • Safety and tolerability

Key secondary objectives

  • Recommended ALLO-715 Phase 2 dose and lymphodepletion regimen​
  • Anti-tumor activity (ORR, duration of response, PFS, and MRD)​
  • ALLO-715 cellular kinetics (blood levels of anti-BCMA CAR T cells)​
  • ALLO-647 pharmacokinetics (serum ALLO-647 concentrations)

Key eligibility criteria

  • Relapsed/Refractory Multiple Myeloma
  • ≥ 3 prior therapies, including an IMiD, a proteasome inhibitor, and an anti-CD38 antibody
  • Refractory to last prior therapy
  • ECOG 0 or 1
  • No donor-specific antibodies
  • No bridging therapy allowed

Treatment

  • Dose escalation: 40, 160, and 320 x 106 CAR+ cells

Lymphodepletion

  • ALLO-647: 13 to 30 mg x 3 days​
  • Fludarabine: 30 mg/m2/d x 3 days​
  • Cyclophosphamide: 300 mg/m2/d x 3 days