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. 2022 Apr 7;13:830631. doi: 10.3389/fimmu.2022.830631

Table 2.

Study that reported the onset time of checkpoint inhibitor pneumonitis (CIP) in NSCLC patients with PD-1/PD-L1 blockade.

Published Year Treatment Study type Enrollment a NSCLC stage Incidence, n (%) Median time to onset, week(range) Reference
Any grade High grade (≥3)
2015 Nivolumab Prospective, RCT 131 III 6 (5.0) 1 (1.0) 15.1 (2.6–85.1) (15)
2015 Nivolumab Prospective, RCT 287 III 10 (3.5) b1 4 (1.4) b2 31.1 (11.7-56.9) (16)
2015 Pembrolizumab Prospective, RCT 550 IIIB or IV 21 (3.8) 11 (2.0) 8.1 (0.6-56.1) (18)
2017 Nivolumab
(mono or combined with chemotherapy)
Retrospective 111 IV or recurrent 8 (7.2) b3 4 (3.6) b3 5.2 (2.3–24) (34)
2018 Nivolumab/Pembrolizumab/Durvalumab
(mono or combined with other ICI/chemotherapy)
Retrospective 205 all 39 (19.0) 24 (11.7) 11.7 (2.9–26.1) c (35)
2020 Nivolumab
(mono or combined with chemotherapy)
Retrospective 901 all 94 (10.4) 39 (4.3) 8.4 (0-75.1) (36)
2020 Nivolumab/Ipilimumab/Pembrolizumab
(mono or combined with chemotherapy)
Retrospective d 205 all 5 (2.4) e 2 (1.0) e 52.9 (34-86.6) (37)

NSCLC, non-small-cell lung cancer; PD-1, programmed cell death 1; PD-L1, programmed cell death ligand 1.

aPatients enrolled in and received ICI treatment.

bIncludes patients with interstitial lung disease (2 in a1, 1 in a2, all in a3).

cInterquartile range of onset time.

dA retrospective study on Chronic pneumonitis (clinical pneumonitis persisting or worsening with steroid tapering and necessitating ≥12 weeks of immune suppression after ICI discontinuation).

eInitial pneumonitis grade.