Table 1 Baseline characteristics and prior treatment

From: Elranatamab in relapsed or refractory multiple myeloma: phase 2 MagnetisMM-3 trial results

Characteristics

Total (n = 123)

Median age (range), years

68.0 (36–89)

Male, n (%)

68 (55.3)

Race, n (%)

 White

72 (58.5)

 Asian

16 (13.0)

 Black or African American

9 (7.3)

 Not reported or unknowna

26 (21.1)

Geographical region, n (%)

 North America

58 (47.2)

 Europe

45 (36.6)

 Asia

12 (9.8)

 Other

8 (6.5)

ECOG performance status, n (%)

 0

45 (36.6)

 1

71 (57.7)

 2

7 (5.7)

Type of myeloma, n (%)

 IgG

65 (52.8)

  Non-IgG

21 (17.1)

  IgA

20 (16.3)

 IgD

1 (0.8)

 Light chain

24 (19.5)

 Unknown

13 (10.6)

R-ISS disease stage, n (%)

 I

28 (22.8)

 II

68 (55.3)

 III

19 (15.4)

 Unknown

8 (6.5)

Cytogenetic risk, n (%)

 

 Standard

83 (67.5)

 Highb

31 (25.2)

 Missing

9 (7.3)

Extramedullary disease by BICR, n (%)c

39 (31.7)

Bone marrow plasma cells, n (%)

 <50%

89 (72.4)

 ≥50%

26 (21.1)

 Missing

8 (6.5)

≥1 poor prognosis featured

94 (76.4)

Median no. of prior antimyeloma lines of therapy (range)

5 (2–22)

Prior stem cell transplant, n (%)

87 (70.7)

Exposure status, n (%)

 Triple-classe

123 (100)

 Penta-drugf

87 (70.7)

Refractory status, n (%)

 Triple-classe

119 (96.7)

 Penta-drugf

52 (42.3)

Refractory to last line of therapy, n (%)

118 (95.9)

  1. aIncludes patients recruited in countries where the collection of races is prohibited.
  2. bIncludes t(4;14), t(14;16) and del(17p) chromosomal abnormalities.
  3. cExtramedullary disease was defined as the presence of any plasmacytoma (extramedullary and/or paramedullary with a soft-tissue component).
  4. dPoor prognosis feature refers to at least one of the following: ECOG performance status of 2, R-ISS stage III, high cytogenetic risk, extramedullary disease at baseline, bone marrow plasma cells ≥50% or penta-refractory disease.
  5. eTriple-class refers to at least one proteasome inhibitor, one immunomodulatory drug and one anti-CD38 antibody.
  6. fPenta-drug refers to at least two proteasome inhibitors, two immunomodulatory drugs and one anti-CD38 antibody.