Table 1 Characteristics of the patients

From: Bispecific CAR T cell therapy targeting BCMA and CD19 in relapsed/refractory multiple myeloma: a phase I/II trial

 

Median (range) or No. (%)

 

Median (range) or No. (%)

Age, year

57 (31–70)

Bortezomib

 

Gender

 

Exposed

50 (100)

Male

22 (44)

Refractory

50 (100)

Female

28 (56)

Ixazomib

 

ECOG performance status

 

Exposed

18 (36)

0

22 (44)

Refractory

16 (32)

1

23 (46)

Previous immunomodulatory drugs

 

2

5 (10)

Lenalidomide

 

Monoclonal type

 

Pomalidomide

 

IgG

25 (50)

Exposed

7 (14)

IgA

14 (28)

Refractory

6 (12)

IgD

2 (4)

Thalidomide

 

λ light chain

6 (12)

Exposed

23 (46)

κ light chain

3 (6)

Refractory

20 (40)

International Staging System

 

Previous anti-38 monoclonal antibodies

 

I

4 (8)

Daratumumab

 

II

18 (36)

Exposed

9 (18)

III

28 (56)

Refractory

9 (18)

Median time since diagnosis, months

29.5 (4–162)

Previous ASCT

20 (40)

Extramedullary plasmacytomas

7 (14)

Previous CAR T cell infusion

5 (10)

High-risk cytogenetic

34 (68)

Penta-drug exposed

4 (8)

Bone marrow plasma cellså 50%

11 (22)

Double-refractory disease

50 (100)

Detectable CD19 expression

5 (10)

Triple-refractory disease

9 (18)

Tumor BCMA expression ≥ 50%

30(60)

Penta-refractory disease

4 (8)

Previous therapies

4 (2–11)

Refractory to the last line of therapy

40 (80)

Previous proteasome inhibitors

 

Relapse after the last treatment

10 (20)

  1. Eastern Cooperative Oncology Group (ECOG) performance‑status scores range from 0 to 5, with higher scores indicating greater disability.
  2. BCMA denotes B‑cell maturation antigen and ASCT autologous stem cell transplantation.
  3. The extramedullary disease was defined as soft-tissue masses spreading outside the bone marrow.
  4. A high tumor burden was defined as at least 50% CD138-positive plasma cells in bone marrow.
  5. High‑risk cytogenetic abnormalities included amplification 1q21, deletion 17p, deletion 13q, t(4;14), t(11; 14), and t(14; 16).
  6. Double‑refractory disease was refractory to an immunomodulatory agent and a proteasome inhibitor.
  7. Triple‑refractory disease was refractory to an immunomodulatory agent, a proteasome inhibitor, and an anti‑CD38 monoclonal antibody.
  8. Penta‑refractory disease was refractory to lenalidomide, pomalidomide, bortezomib, Ixazomib, and daratumumab.
  9. Fonts in bold represent first-level metrics, fonts without bold represent second-level metrics.