Table 1 Demographics and baseline characteristics for patients receiving dostarlimab + chemotherapy and pembrolizumab + chemotherapy (ITT population)

From: Dostarlimab or pembrolizumab plus chemotherapy in previously untreated metastatic non-squamous non-small cell lung cancer: the randomized PERLA phase II trial

Variable

Dostarlimab + chemotherapy (N = 121)

Pembrolizumab + chemotherapy (N = 122)

Median age, years (range)

64 (25–80)

65 (46–86)

Age group (years), n (%)

 <65

65 (54)

57 (47)

 ≥65

56 (46)

65 (53)

Sex, n (%)

 Male

85 (70)

77 (63)

 Female

36 (30)

45 (37)

Ethnicity, n (%)

 Hispanic or Latino

25 (21)

32 (26)

 Other

90 (74)

84 (69)

 Not reporteda

3 (2)

5 (4)

 Unknownb

3 (2)

1 (<1)

Race, n (%)

 White

87 (72)

84 (69)

 Asian

23 (19)

21 (17)

 Unknown

4 (3)

6 (5)

 Multiple

3 (2)

3 (2)

 Black or African American

1 (<1)

3 (2)

 American Indian or Alaska Native

1 (<1)

0 (0)

 Native Hawaiian or Other Pacific Islander

0 (0)

0 (0)

 Not Reported

2 (2)

5 (4)

Enrollment regionc, n (%)

 Europe

62 (51)

65 (53)

 South America

35 (29)

34 (28)

 East Asia

23 (19)

21 (17)

 USA

1 (<1)

2 (2)

Smoking statusd, n (%)

 Never smoked

17 (14)

17 (14)

 Former/current smoker

104 (86)

105 (86)

ECOG performance status, n (%)

 0

37 (31)

50 (41)

 1

84 (69)

72 (59)

Stage at initial diagnosise, n (%)

 I

11 (9)

9 (7)

 II

2 (2)

3 (2)

 III

4 (3)

9 (7)

 IV

101 (83)

100 (82)

 Unknown

3 (2)

1 (<1)

Histology, n (%)

 Non-squamous

117 (97)

121 (>99)

 Mixed

4 (3)f

1 (<1)g

PD-L1 statusd, n (%)

 TPS < 1%

50 (41)

51 (42)

 TPS 1–49%

44 (36)

44 (36)

 TPS ≥ 50%

27 (22)

27 (22)

 TPS ≥ 1%

71 (59)

71 (58)

Metastases at baseline, n (%)

 Bone

39 (32)

34 (28)

 Brain

22 (18)

15 (12)

 Liver

19 (16)

14 (11)

  1. ECOG Eastern Cooperative Oncology Group, ITT intention-to-treat, NSCLC non-small cell lung cancer, PD-L1 programmed cell death ligand-1, TPS tumor proportion score.
  2. aNot reported indicates cases where a patient prefers to not provide their ethnicity or where the collection of this data is not permitted according to local regulations.
  3. bUnknown indicates cases where these data are not known.
  4. cEast Asia – Republic of Korea, Taiwan; Europe – France, Germany, Italy, Poland, Romania, Spain; South America – Argentina, Brazil, Chile.
  5. dRandomization factors based on data collected in Interactive Response Technology at randomization.
  6. ePatients are required to have metastatic NSCLC at enrollment.
  7. fPredominantly non-squamous histology without small cell component (n = 2) and other (n = 2).
  8. gPredominantly non-squamous histology without small cell component.