Table 2 Objective response and duration of response in total population

From: QL1706 (anti-PD-1 IgG4/CTLA-4 antibody) plus chemotherapy with or without bevacizumab in advanced non-small cell lung cancer: a multi-cohort, phase II study

 

Squamous

Non-squamous

Cohorts 1-4 population (n = 60)

Cohort 5 population (n = 31)

Cohort 1 (n = 17)

Cohort 2 (n = 11)

Cohort 3 (n = 12)

Cohort 4 (n = 20)

Best overall response, n (%)

CR

0

0

0

0

0

0

PR

10 (58.8)

4 (36.4)

5 (41.7)

8 (40.0)

27 (45.0)

17 (54.8)

SD

6 (35.3)

6 (54.5)

6 (50.0)

8 (40.0)

26 (43.3)

12 (38.7)

PD

1 (5.9)

1 (9.1)

1 (8.3)

1 (9.1)

4 (6.7)

2 (6.5)

Not evaluable

0

0

0

0

0

0

Not able to be assesseda

0

0

0

3 (15.0)

3 (5.0)

0

ORR, n (%)

10 (58.8)

4 (36.4)

5 (41.7)

8 (40.0)

27 (45.0)

17 (54.8)

95% CI

(32.9, 81.6)

(10.9, 69.2)

(15.2, 72.3)

(19.1, 63.9)

(32.1, 58.4)

(36.0, 72.7)

DCR, n (%)

16 (94.1)

10 (90.9)

11 (91.7)

16 (80.0)

53 (88.3)

29 (93.5)

95% CI

(71.3, 99.9)

(58.7, 99.8)

(61.5, 99.8)

(56.3, 94.3)

(77.4, 95.2)

(78. 6, 99.2)

Median DOR, months (95% CI)

NR

NR

NR

9.9 (2.6-NE)

NR

7.0 (4.2-NE)

Patients with a response who had ongoing responses

Rate (95% CI) at 3 months

83.3% (48.2, 95.6)

100% (100, 100)

75.0% (12.8, 96.1)

87.5% (38.7, 98.1)

85.7% (66.2, 94.4)

84.7% (59.7, 94.8)

Rate (95% CI) at 6 months

64.8% (31.0, 85.2)

50.0% (5.8, 84.5)

50.0% (5.8, 84.5)

75.0% (31.5, 93.1)

63.3% (42.5, 78.3)

53.5% (27.4, 74.0)

Rate (95% CI) at 9 months

55.6% (23.7, 78.7)

NR

50.0% (5.8, 84.5)

62.5% (22.9, 86.1)

55.9% (35.5, 72.1)

44.6% (19.1, 67.4)

  1. Abbreviations: CI confidence interval, CR complete response, DCR disease control rate, NR not reached, ORR objective response rate, PD progressive disease, PR partial response, SD stable disease, DOR duration of response
  2. aThree patients discontinued study treatment before the first scheduled post-baseline tumor assessment