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Evaluation of rare but severe immune related adverse effects in PD-1 and PD-L1 inhibitors in non-small cell lung cancer: a meta-analysis.

ABSTRACT: Background:Programmed death-1 (PD-1) and programmed death ligand-1 (PD-L1) inhibitor therapy is showing marked efficacy in advanced non-small cell lung cancer (NSCLC). Meanwhile, it is concomitant with distinctive immune-related adverse effects. We aim to describe the incidence of pneumonitis and other rare but severe immune-related adverse effects (IRAEs), as well as treatment related deaths. In addition, we analyze the differences in incidence of pneumonitis between PD-1 and PD-L1 inhibitors and standard-of-care chemotherapy. Methods:PubMed was searched up to 24 March 2017 for clinical trials of PD-1 inhibitors (nivolumab and pembrolizumab) and PD-L1 inhibitors (atezolizumab, avelumab and durvalumab) in treatment of NSCLC. Besides, references of relevant articles were screened. Results:Finally, 22 trials were included in our study, 14 with data of pneumonitis, 19 with other severe IRAEs or treatment related deaths and 5 with control groups. Incidence of all-grade pneumonitis was 2.9% (95% CI, 2.0-4.8%) and grade 3 or higher pneumonitis 2.0% (95% CI, 1.0-2.0%). Incidence of all-grade pneumonitis in PD-1 and PD-L1 inhibitor therapy (n=1,313) was significantly higher than that in chemotherapy (n=918) (OR=2.35, 95% CI, 1.32-4.20, P=0.004), but had no significance in grade 3-5 pneumonitis. Incidence of cardiorespiratory arrest (n=537) was 1.0% (95% CI, 0-2.0%), cardiac failure (n=214) 2.0% (95% CI, 1.0-5.7%), myocardial infarction (n=402) 1.0% (95% CI, 0-3.8%), stroke (n=135) 2.0% (95% CI, 0-13.0%), disease progression (n=391) 1.0% (95% CI, 0-2.9%), pancreatitis (n=700) 1.0% (95% CI, 0-2.0%) and severe skin reactions (n=836) 2.0% (95% CI, 1.0-3.8%). Incidence of treatment related deaths was 0.7%. Conclusions:Immune related adverse effects can on occasion be life-threatening even though usually rare. Incidence of pneumonitis in PD-1 and PD-L1 inhibitors was significantly higher than that in chemotherapy. More studies should be conducted to investigate the incidence of these rare but life-threatening IRAEs.

SUBMITTER: Hu YB

PROVIDER: S-EPMC5750164 | biostudies-literature | 2017 Dec

REPOSITORIES: biostudies-literature

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Evaluation of rare but severe immune related adverse effects in PD-1 and PD-L1 inhibitors in non-small cell lung cancer: a meta-analysis.

Hu Yang-Bo YB Zhang Qun Q Li Hui-Juan HJ Michot Jean Maire JM Liu Hong-Bing HB Zhan Ping P Lv Tang-Feng TF Song Yong Y

Translational lung cancer research 20171201 Suppl 1

<h4>Background</h4>Programmed death-1 (PD-1) and programmed death ligand-1 (PD-L1) inhibitor therapy is showing marked efficacy in advanced non-small cell lung cancer (NSCLC). Meanwhile, it is concomitant with distinctive immune-related adverse effects. We aim to describe the incidence of pneumonitis and other rare but severe immune-related adverse effects (IRAEs), as well as treatment related deaths. In addition, we analyze the differences in incidence of pneumonitis between PD-1 and PD-L1 inhi ...[more]

PMID: 29299404

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Project description:Background:Cutaneous adverse events (AEs) have been positively associated with immune checkpoint inhibitor (ICI) efficacy in patients with melanoma, but little is known regarding the association between checkpoint inhibitor pneumonitis (CIP) and programmed cell death protein 1/programmed death ligand 1 (PD-1/PD-L1) inhibitor efficacy in non-small cell lung cancer (NSCLC). Methods:A single-institution, retrospective medical record review of patients with advanced or recurrent NSCLC who were treated with PD-1/PD-L1 inhibitors between 1 September 2015 and 1 June 2019 was conducted. A total of 276 NSCLC patients with or without immune-related pneumonitis who received at least one dose of ICIs and had at least one follow-up visit were identified. Kaplan-Meier curves of the progression-free survival (PFS) of patients stratified according to immune-related pneumonitis development were evaluated with the log-rank test as a preplanned primary objective. Multivariate analysis of PFS was performed with Cox proportional hazard regression models. Results:In the cohort of 276 patients, 42 patients developed CIP attributed to PD-1/PD-L1 inhibitors. Survival analysis showed that the overall response rate was significantly higher in patients with CIP than in those without CIP (61.90% versus 29.91%, respectively, p < 0.01), and that CIP development was significantly associated with increased PFS (45.80 weeks versus 21.15 weeks, respectively, p < 0.01). Additionally, 16-week landmark analysis produced the same results. Similarly, subgroup analysis of PD-1 inhibitor-treated, nivolumab-treated, and pembrolizumab-treated groups also revealed that CIP increased survival in NSCLC patients. Additionally, grade 1-2 pneumonitis showed an association with increased ICI efficacy in NSCLC; however, grade 3-4 pneumonitis did not. In addition, only two of the four pneumonitis radiological subtypes showed associations with increased ICI efficacy in NSCLC. Conclusion:CIP is associated with enhanced PD-1/PD-L1 inhibitor efficacy in NSCLC patients. Grade 1-2 pneumonitis and the radiological features of hypersensitivity and cryptogenic organizing pneumonia (COP) may be signs of enhanced ICI efficacy. However, further studies with larger numbers of patients and longer follow-up times are needed to validate our findings.

Project description:IntroductionImmune checkpoint inhibitors (ICIs) have revolutionized cancer therapeutics. However, immune-related adverse events (irAEs) increase morbidity and mortality and thereby limit therapeutic utility. The real-world incidence of the entire spectrum of pulmonary irAEs has not been systematically described. The objective of this study is to assess the risk of developing pulmonary irAEs (pneumonitis, pleural events [i.e., effusion and pleurisy], exacerbations of airway disease [i.e., bronchitis and bronchiectasis], and sarcoidosis) with exposure to five commonly used ICIs: nivolumab, pembrolizumab, durvalumab, avelumab, and atezolizumab.MethodsWe conducted a retrospective review of the Food and Drug Administration Adverse Events Reporting System (FAERS) pharmacovigilance database. We collected data from 2012 to 2021 to assess the risk of pulmonary irAEs and performed a disproportionality analysis using Open-Vigil, a software package used for analysis of pharmacovigilance data, to calculate reporting odds ratios (RORs). We used 95% CIs to evaluate the precision of RORs. An ROR greater than 1 and the upper limit of the 95% CI indicated statistical significance.ResultsA total of 17,273,403 events were reported in FAERS between 2012 and 2021. Of these, 88,099 (0.5%) were attributed to the PD-1 (programmed cell death protein 1) inhibitors and 21,905 (0.1%) to PD-L1 (programmed death ligand 1) inhibitors of interest. The most common indication for using the ICIs of interest was lung cancer: a total of 2832 (46.70%) for the PD-1 inhibitors and 1311 (70.9%) for the PD-L1 inhibitors. In the anti-PD-1 group, 2342 (38.6%) patients were hospitalized, and 1962 (32.4%) patients died from the lung adverse event. In the PD-L1 group, 744 (40.3%) patients were hospitalized, and 520 (28.1%) patients died from the event. Nivolumab resulted in the highest statistically significant risk (ROR, 10.5; 95% CI, 10.1-10.9) for pneumonitis. Avelumab had a lesser risk for pneumonitis (ROR, 0.2; 95% CI, 0.2-0.3). The risk for pleural events was highest with nivolumab (ROR, 3.6; 95% CI, 3.4-3.9), followed by pembrolizumab (ROR, 1.8; 95% CI; 1.6-2.0) (p < 0.001), with the lowest risks from durvalumab, atezolizumab, and avelumab. For ICI-related sarcoidosis, the risk was most significant with pembrolizumab (ROR, 3.6; 95% CI, 2.8-4.7), followed by nivolumab (ROR, 2.5; 95% CI, 1.9-3.5) (p < 0.001). The RORs for all five ICIs were less than 1 for exacerbations of airway diseases as compared with other drugs.ConclusionUsing a pharmacovigilance database, we found an increased risk of multiple pulmonary irAEs after ICI therapy, particularly with PD-1 inhibitors. Further work is needed to investigate the incidence of pulmonary irAEs other than pneumonitis.

Dataset Information

Evaluation of rare but severe immune related adverse effects in PD-1 and PD-L1 inhibitors in non-small cell lung cancer: a meta-analysis.

Publications

Evaluation of rare but severe immune related adverse effects in PD-1 and PD-L1 inhibitors in non-small cell lung cancer: a meta-analysis.

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