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Immune-related pneumonitis associated with immune checkpoint inhibitors in lung cancer: a network meta-analysis.

ABSTRACT: BACKGROUND:Immune checkpoint inhibitors (ICIs) have dramatically revolutionized lung cancer treatment, providing unprecedented clinical benefits. However, immune-related pneumonitis (IRP) caused by ICIs has aroused widespread concern due to its high rate of discontinuation and mortality. This network meta-analysis (NMA) aims to compare the risks of IRP among different regimens for advanced lung cancer. METHODS:Phase II and III randomized clinical trials (RCTs) were searched from electronic databases. The rates of grade 1-5 IRP and grade 3-5 IRP were systematically extracted. An NMA was conducted among chemotherapy, ICIs monotherapy, dual ICIs combination, and ICIs+chemotherapy. Subgroup analysis was also compared based on specific types of ICIs. RESULTS:Twenty-five RCTs involving 17,310 patients were eligible for inclusion. Compared with chemotherapy, ICI-based regimens were associated with an increased risk of grade 1-5 IRP and grade 3-5 IRP. Compared with ICIs+chemotherapy, ICIs monotherapy (grade 1-5: OR 2.14, 95% credible interval 1.12 to 4.80; grade 3-5: 3.03, 1.491 to 6.69) and dual ICIs combination (grade 1-5: 3.86, 1.69 to 9.89; grade 3-5: 5.12, 2.01 to 13.68) were associated with a higher risk of grade 1-5 IRP and grade 3-5 IRP. No significant difference was found between dual ICIs combination and ICIs monotherapy in grade 1-5 IRP (1.85, 0.91 to 3.37) or in grade 3-5 IRP (1.65, 0.81 to 3.37). Besides, compared with programmed cell death protein 1 (PD-1) inhibitors (2.56, 1.12 to 6.60), a lower risk of grade 1-5 IRP was observed in programmed cell death ligand 1 (PD-L1) inhibitors. CONCLUSION:Compared with chemotherapy, using ICIs is associated with an increased risk of IRP. ICIs+chemotherapy is associated with a lower risk of IRP compared with dual ICIs combination and ICIs monotherapy. PD-1 inhibitors are associated with a higher risk of 1-5 grade IRP compared with PD-L1 inhibitors.

SUBMITTER: Chen X

PROVIDER: S-EPMC7462235 | biostudies-literature | 2020 Aug

REPOSITORIES: biostudies-literature

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Immune-related pneumonitis associated with immune checkpoint inhibitors in lung cancer: a network meta-analysis.

Chen Xinru X Zhang Zhonghan Z Hou Xue X Zhang Yaxiong Y Zhou Ting T Liu Jiaqing J Lin Zhihuan Z Fang Wenfeng W Yang Yunpeng Y Ma Yuxiang Y Huang Yan Y Zhao Hongyun H Zhang Li L

Journal for immunotherapy of cancer 20200801 2

<h4>Background</h4>Immune checkpoint inhibitors (ICIs) have dramatically revolutionized lung cancer treatment, providing unprecedented clinical benefits. However, immune-related pneumonitis (IRP) caused by ICIs has aroused widespread concern due to its high rate of discontinuation and mortality. This network meta-analysis (NMA) aims to compare the risks of IRP among different regimens for advanced lung cancer.<h4>Methods</h4>Phase II and III randomized clinical trials (RCTs) were searched from e ...[more]

PMID: 32863271

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Project description:Objective: This network meta-analysis will provide a complete toxicity profile, toxicity profile, and safety ranking of immune checkpoint inhibitors (ICIs) for treatment of advanced non-small cell lung cancer (NSCLC). Methods: We found 12 phase II or III randomized clinical trials (RCTs) including 8,453 patients with NSCLC by searching Pubmed, Embase, and ClinicalTrials.gov. Risk ratios (RRs) and 95% confidence interval (CI) were used to compare the rate of immune-related adverse events (irAEs) for different ICIs-based treatments using pairwise and network meta-analysis with random effects. Results: For dermatologic irAEs, the corresponding ranking of incidences of the seven groups from high to low was: nivolumab + ipilimumab (97.4%), pembrolizumab (80.1%), nivolumab (67.1%), pembrolizumab + platinum (43.3%), atezolizumab + platinum (39.9%), durvalumab (17.5%), platinum-based chemotherapy (4.7%). For colitis, the corresponding ranking of incidences of the six groups from high to low was: atezolizumab + platinum (77.1%), nivolumab (67.3%), pembrolizumab (60.5%), durvalumab (45.2%), pembrolizumab + platinum (41.4%), platinum-based chemotherapy (8.5%). For endocrine irAEs, the corresponding ranking of incidences of the seven groups from high to low was: nivolumab + ipilimumab (79.1%), durvalumab (69.1%), pembrolizumab (61.9%), atezolizumab + platinum (60.4%),nivolumab (45.7%), pembrolizumab + platinum (33.5%), platinum-based chemotherapy (0.3%). For pneumonitis, the corresponding ranking of incidences of the seven groups from high to low was: pembrolizumab (99.3%), pembrolizumab + platinum (65.1%), durvalumab (62.2%), atezolizumab + platinum (56%), nivolumab (35.9%), platinum-based chemotherapy (18.1%),atezolizumab (13.3%). For hepatitis, the corresponding ranking of incidences of the six groups from high to low was: pembrolizumab (71.2%), pembrolizumab + platinum (64.3%), durvalumab (56.4%), atezolizumab + platinum (53.8%), nivolumab (44.5%), platinum-based chemotherapy (9.8%). Conlusion: In addition to platinum-based chemotherapy, durvalumab for dermatologic and liver irAEs, pembrolizumab for gastrointestinal irAEs, pembrolizumab + platinum for endocrine irAEs, and atezolizumab for pneumonitis may be associated with lower rates of irAEs than other immune-based regimens. Nivolumab + ipilimumab for dermatologic and endocrine irAEs, atezolizumab + platinum for colitis, and pembrolizumab for pneumonitis and hepatitis may be associated with higher rates of irAEs.

Project description:Background: Recently, immune checkpoint inhibitors (ICIs) have been proved one of the most promising anti-cancer therapy, series clinical trials have confirmed their efficacy. But they are also associated with distinctive set of toxic effects, which are recognized as immune-related adverse events. Among those immune-related adverse events, pneumonitis is rare, but it is often clinically serious and potentially life-threatening. Although many clinical trial results of PD-1/PD-L1 inhibitors had been reported incidence of pneumonitis, the knowledge based on the individual cohort data from each clinical trial is limited. So we conducted a meta-analysis of trials of PD-1/PD-L1 inhibitors in patients with advanced cancer and compared relative risk and incidence among different tumor types and therapeutic regimens. Such an analysis may provide important knowledge of this rare but clinically significant and potentially serious immune-related adverse event. Methods: Electronic databases were used to search eligible literatures, include randomized controlled trials (RCTs) comparing immune checkpoint inhibitors vs. standard therapies. All-grade (1-4) or high-grade (3-4) pneumonitis events were extracted. The summary relative risk, summary incidence, and 95% confidence intervals were calculated. Results: The incidence of all-grade and high-grade pneumonitis in non-small cell lung cancer (NSCLC) was significantly higher compared with other tumor types, such as Melanoma, urothelial carcinoma (UC), head and neck squamous cell carcinoma (HNSCC) (3.1% vs. 2.0%; p = 0.02, 1.4% vs. 0.6%; p = 0.03). The risk of all-grade pneumonitis was obtained from all patients in both experimental arm and control arm. Treatment with immune checkpoint inhibitors targeting PD-1/PD-L1 did significantly increase the risk of all-grade and high-grade pneumonitis compared with controls (fixed effects, RR: 4.70; 95% CI: 2.81-7.85; p < 0.00001, RR: 3.33; 95% CI: 1.68-6.59; p = 0.0006). Conclusion: The incidence of immune checkpoint inhibitors related pneumonitis was higher in NSCLC than other tumor types. Patients treated with immune checkpoint inhibitor in experiment arms are more likely to experience any grade pneumonitis than control arms. These findings suggest that clinician need to draw more attention on this rare but serious adverse event.

Project description:BackgroundImmune checkpoint inhibitors (ICIs) have become standard treatments for lung cancer patients. Immune checkpoint inhibitor-related pneumonitis (CIP) was the leading cause of death among ICIs-related adverse events (irAEs). Recurrent episodes of CIP without rechallenge of ICIs were reported in several cases and maybe a unique feature of CIP. Knowledge gaps remain regarding the rate and risk factors associated to CIP's recurrence.MethodsData from 1,102 lung cancer patients receiving ICIs treatment between January 2016 and January 2021 were retrospectively collected and analyzed. CIP was diagnosed according to typical clinical features and/or new typical imaging changes. Recurrence of CIP (CIP-R) was defined as recurrent CIP after initial CIP improved after proper treatment. Logistic regression was used to assess risk factors associated with CIP recurrence.ResultsEighty out of 1,102 (7.26%) patients were diagnosed with CIP. Twenty of those 78 (25.64%) patients suffered CIP-R, 2 patients died and were therefore excluded from the denominator. The median onset of initial pneumonitis for patients without and with recurrence was 3.49 months [interquartile range (IQR), 0.26-31.93 months] and 2.78 months (IQR, 1.22-20.93 months), respectively (P=0.48). The median interval duration between initial CIP and CIP-R was 1.54 months (IQR, 0.98-16.70 months). Recurrence of CIP was more common in males (P=0.03), squamous histology (P=0.016), and in patients who received chest radiotherapy (P=0.049). The duration of prednisolone equivalent dose ≥15 mg/day in CIP-R was significantly shorter, at 3.71 weeks (2.86-6.57 weeks) compared with 6.36 weeks in those without recurrence (IQR, 3.12-9.86 weeks) (P=0.001). Non-squamous histology [odds ratio (OR), 0.182; 95% confidence interval (CI): 0.038-0.860; P=0.031] and prolonged administration of prednisolone equivalent dose ≥15 mg/day for more than 4 weeks (OR, 0.082; 95% CI: 0.02-0.342; P=0.001) were independently associated with a decreased odds of CIP-R development.ConclusionsCIP-R in a real-world lung cancer cohort is not uncommon, both in patients with and without rechallenge of ICIs. A duration of prednisolone equivalent dose ≥15 mg/day of at least 4 weeks during the tapering process of corticosteroids were recommend in patients with CIP.

Project description:Background: We performed a systematic review and meta-analysis to evaluate the risk of pneumonitis and pneumonia associated with immune checkpoint inhibitors (ICIs) for solid tumors. Methods: The following keywords were used in searching the Embase and PubMed database: pneumonitis, pneumonia, and immune checkpoint inhibitors. The data was analyzed by using the R software and Metafor package. Results: Among 3,436 studies, 23 randomized clinical trials (RCTs) met our selection criteria which included data from 12,876 patients. Compared with chemotherapy, PD-1 inhibitors showed significant increase in grade 1-5 and grade 3-5 pneumonitis (RR, 5.17, 95% CI: 2.82-9.47, p < 0.001; RR, 4.14, 95% CI: 1.82-9.42, p < 0.001), but not in pneumonia. PD-L1 inhibitors showed significant increase in grade 1-5 pneumonitis and pneumonia (RR, 3.25, 95% CI: 1.61-6.57, p < 0.001; RR, 2.11, 95% CI: 1.20-3.70, p < 0.001). There was no significant difference in any grade pneumonitis and pneumonia in cytotoxic T lymphocyte-associated protein 4 (CTLA4) inhibitors subgroup. Programmed cell death protein 1 (PD-1) inhibitor (nivolumab and pembrolizumab) both showed significant increase in grade 1-5 pneumonitis, and pembrolizumab specially tended to increase grade 3-5 pneumonitis. (RR, 5.64 95% CI: 1.94-16.38, p < 0.001). Compared with PD-1 inhibitor (nivolumab) or CTLA-4 inhibitor (ipilimumab) monotherapy, PD-1 inhibitor, and CTLA-4 inhibitor (nivolumab plus ipilimumab) combination therapies showed significant increase in grade 1-5 and grade 3-5 pneumonitis (RR 3.47, 95%CI:1.76-6.83, p < 0.001; RR 3.48, 95%CI: 1.10-11.02, p < 0.001). Conclusions: PD-1/PD-L1 inhibitors treatment could increase the risk of all-grade pneumonitis. CTLA4 inhibitor ipilimumab treatment alone could not increase the risk of pneumonitis but could augment the risk of pneumonitis in PD-1/PD-L1 inhibitor treated patients. There was no significant increase in the risk of pneumonia after either PD-1/PDL-1inhibitor or CTLA4 inhibitor treatment alone or in combination.

Dataset Information

Immune-related pneumonitis associated with immune checkpoint inhibitors in lung cancer: a network meta-analysis.

Publications

Immune-related pneumonitis associated with immune checkpoint inhibitors in lung cancer: a network meta-analysis.

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