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Table 2 Clinical efficacy evaluated by independent review committee (IRC) and investigator per RECIST v1.1 or iRECIST

From: Safety and efficacy of Pucotenlimab (HX008) - a humanized immunoglobulin G4 monoclonal antibody in patients with locally advanced or metastatic melanoma: a single-arm, multicenter, phase II study

 

IRC

Investigator

N

119

119

 

RECIST

iRECIST

RECIST

iRECIST

CR/iCR, n (%)

1 (0.84)

3 (2.52)

2 (1.86)

2 (1.68)

PR/iPR, n (%)

23 (19.33)

23 (19.33)

22 (18.49)

25 (21.01)

SD/iSD, n (%)

28 (23.53)

31 (26.05)

27 (22.69)

28 (23.53)

PD/iuPD/icPD, n (%)

57 (47.90)

52 (43.7)

58 (48.74)

54 (45.4)

NE, n (%)

10 (8.4)

10 (8.4)

10 (8.4)

10 (8.4)

ORR, n (%)

24 (20.17)

26 (21.85)

24 (20.17)

27 (22.69)

95% CI

13.370–28.506

14.796–30.352

13.370–28.506

15.516–31.268

DCR, n (%)

52 (43.70)

57 (47.90)

51 (42.86)

55 (46.22)

95% CI

34.625–53.091

38.658–57.248

33.827–52.252

37.037–55.592

Median PFS, months (95% CI)

2.89 (2.037–4.074)

4.01 (2.201–4.665)

2.46 (2.004–4.008)

3.98 (2.333–6.012)

cutaneous

4.205 (2.037–13.142)

_

_

_

acral

3.285 (2.004–4.107)

_

_

_

mucosal

1.971 (1.873–2.661)

_

_

_

Median DOR, months (95% CI)

NR (9.791, NR)

NR (17.577, NR)

NR (15.869, NR)

NR (15.869, NR)

12-month DOR rate, % (95% CI)

68.46 (42.36–84.60)

80.36 (55.64–92.17)

81.99 (58.83–92.83)

83.27 (61.29–93.38)

Median OS, months (95% CI)

16.59 (13.963–26.973)

cutaneous

NR

acral

20.107 (14.193–27.039)

mucosal

9.363 (5.092–22.505)

  1. NE refers to the patients who discontinued before the first efficacy evaluation. NR means not reached