scholarly journals Association of Immune Related Adverse Events With Efficacy of Immune Checkpoint Inhibitors and Overall Survival in Cancers: A Systemic Review and Meta-analysis

2021 ◽  
Vol 11 ◽  
Author(s):  
Yong Fan ◽  
Wenhui Xie ◽  
Hong Huang ◽  
Yunxia Wang ◽  
Guangtao Li ◽  
...  

ObjectivesImmune checkpoint inhibitors (ICIs) have brought impressive benefits to cancer patients, however often accompanied with immune-related adverse events (irAEs). We aimed to investigate the association of irAEs with efficacy and overall survival in cancer patients treated by ICIs, and further quantify the association by stratifying subgroups.MethodsPubMed, EMBASE and Cochrane library from database inception to 29 August 2019 were systematically searched. Articles reporting association of objective response rate (ORR), progression-free survival (PFS), overall survival (OS) with irAEs in cancer patients treated with approved ICIs were included. Adjusted odds ratios (OR) with 95% confidential intervals (CIs) were calculated for ORR, and hazard ratios (HR) were used for PFS and OS.ResultsA total of 52 articles comprising 9,156 patients were included. Pooled data demonstrated a statistically significant greater probability of achieving objective tumor response for patients with irAEs compared to those without (OR 3.91, 95% CI 3.05–5.02). In overall meta-analysis, patients who developed irAEs presented a prolonged PFS (HR 0.54; 95% CI 0.46–0.62) and OS (HR 0.51; 95% CI 0.41–0.59). More specifically, irAEs in certain cancer types (NSCLC and melanoma) and organs (skin and endocrine) were robustly associated with better clinical outcomes, while this association needs further verification regarding other tumors. High grade toxicities (G3–5) were not associated with a significantly favorable PFS or OS. Additionally, the association between irAEs and clinical benefit seemed to be more definite in patients receiving PD-(L)1 blockade than CTLA-4 blockade. Pooled data from landmark analyses displayed consistent results.ConclusionsThe occurrence of irAEs predicted improved tumor response and better survival in overall cancer patients treated with ICIs. Notably, the association stayed robust in certain cancer types (NSCLC and melanoma) and organ-specific irAEs (skin and endocrine).

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e15060-e15060
Author(s):  
Robin Park ◽  
Laércio Lopes da Silva ◽  
Ivy Riano ◽  
Cagney Cristancho ◽  
Anwaar Saeed

e15060 Background: Despite increasing clinical experience with immune checkpoint inhibitors and the recent publication of clinical practice guidelines for managing treatment-related adverse events, precise and nuanced checkpoint inhibitor data in the setting of combination therapy is lacking. Herein we have conducted a systematic review and meta-analysis of treatment-related adverse event data from clinical trials evaluating combination immune checkpoint inhibitors. Methods: Studies published in PubMed, Embase, and Cochrane Database from conception to September 28, 2019 were included in the meta-analysis. Studies were eligible for inclusion if combination immune checkpoint inhibitor therapy was evaluated in advanced unresectable cancer and treatment-related adverse event data were available. For comparison of severity of adverse events in combination versus monotherapy, only the studies containing monotherapy arms as a control population were included, while all were included for calculation of pooled incidence of selected adverse events. Pooled risk ratio (RR) was used for the comparison of combination versus monotherapy and the logit transformed proportion for calculation of pooled incidence. Between-study risk of bias was evaluated using the Begg's funnel plot and Egger's regression test. Subgroup analysis was conducted by combination regimen, cancer type, and dosing regimen. Results: A total of 18 studies comprising 2767 patients across 10 cancer types were included in the final analysis. Combination ICI was associated with a slightly higher risk of all-grade adverse events (RR 1.07 [95% CI 1.03-1.11]) and markedly greater risk of grade 3 or higher adverse events (RR 2.21 [95% CI 1.57-3.10]) compared to monotherapy ICI. Subgroup analyses showed significant differences in risk of grade 3 or higher adverse events between treatment type (PD-1+CTLA-4 and PD-L1+CTLA-4), among cancer types, and among dosing regimens (N1I3, N3I1 and D20T1). Incidence of all-grade adverse events was 0.905 [95% CI 0.842-0.945] and grade 3 or higher events/all-grade adverse events was 0.396 [95% CI 0.315-0.483]. The most common all-grade TRAEs were diarrhea/colitis, fatigue/asthenia, nausea/vomiting, rash, and pruritis. Conclusions: Combination ICI therapy has a significantly different treatment-related adverse event profile compared to monotherapy.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e14096-e14096 ◽  
Author(s):  
Cristiane Jeyce Gomes-Lima ◽  
John Kwagyan ◽  
Fred King ◽  
Stephen J Fernandez ◽  
Kenneth D Burman ◽  
...  

e14096 Background: Immune checkpoint inhibitors (ICPi) have emerged as an effective treatment for a variety of cancers. However, important immune-related adverse events (irAEs) can occur. The aim of this study was to determine the prevalence of endocrine irAEs in patients with head and neck cancer and lung cancer that have used a ICPi and outcomes. Methods: A systematic literature review was performed within PubMed and EMBASE databases. Search terms included “durvalumab”, “atezolizumab”, “nivolumab”, “pembrolizumab”, “ipilimumab”, “head & neck cancer”, “lung cancer”. Studies published before September 2018 were included. The search was limited to randomized controlled trials (RCTs) phase III written in English. Data were extracted about patient characteristics, interventions, overall survival (OS), progression free survival (PFS), and endocrine irAEs. A summary hazard ratio (HR) and 95% confidence interval were calculated using the software Comprehensive Meta-Analysis and a scatter plot was generated. Results: Twelve RCTs comprising 7060 patients were reviewed; 3815 used an ICPi (treatment arm). The mean follow-up time of 12.2 months ± 7.1 SD. The survival rate of the treatment arm was enhanced (HR, 0.75; 95% CI, 0.70-0.80), compared to the alternate arm. Similarly, the PFS of the treatment arm was improved (HR, 0.77; 95% CI, 0.72-0.81) but with a higher incidence of endocrine irAEs. The most common endocrine irAE reported was hypothyroidism;193 patients in the treatment arm vs. 29 in the alternate arm (p < 0.001); grade 3/4 AE was observed in 10 patients vs. 1 patient, respectively. Other endocrine irAEs were reported in 168 patients in the treatment arm vs. 26 patients in the alternate arm (p < 0.001); grade 3/4 AE was observed in 28 patients vs. 3 patients, respectively. A significant positive correlation between endocrine irAEs and OS was observed (p = 0.019). Conclusions: ICPi are a powerful tool in the treatment of cancer. The prevalence of endocrine irAEs in this meta-analysis was 9%. There is evidence of improved overall survival in patients who developed endocrine irAEs. Further studies are needed to correlate the development of irAEs and OS advantage.


2021 ◽  
Vol 39 (15_suppl) ◽  
pp. e17030-e17030
Author(s):  
Vinod solipuram ◽  
Kishor Pokharel ◽  
Bhanu Prasad Venkatesulu ◽  
Harideep Samanapally

e17030 Background: Prostate cancer is one of the leading cancers in men with an estimated 191,930 new cases in 2020 in the USA alone. Treatment options for metastatic castration resistant prostate cancer (mCRPC) have evolved in recent years. Immunotherapy involving vaccines like sipuleucel-T, PROSTVAC and immune checkpoint inhibitors have been evaluated in these patients. We present a systematic review and meta-analysis of the randomized controlled trials (RCTs) testing the effect of immunotherapy in mCRPC. Methods: A systematic search was performed using PubMed, Embase and the Cochrane library without language limitations from inception to January 3, 2021. The primary outcome was overall survival (OS) and secondary outcomes were progression free survival (PFS), prostate specific antigen (PSA) reduction ≥ 50% and incidence of grade 3-4 adverse events. The analysis of OS, PFS was done using random effects hazard ratio (HR) by generic inverse variance method and analysis of PSA reduction ≥ 50% and grade 3-4 adverse events was done using random effects risk ratio (RR) by the Mantel-Haenszel method. Results: 12 RCTs comprising 4109 patients were included in the analysis. There was a statistically significant improvement in OS (HR 0.89; 95% CI (0.81, 0.97)) and PFS (HR 0.83; 95% CI (0.76, 0.92)) in the immunotherapy arm compared to placebo or standard treatment arms with moderate quality of evidence. Patients in the immunotherapy group had significant reduction in PSA ≥ 50% (RR 1.71; 95% CI (1.09, 2.68)) but also had statistically significant increased risk of grade 3-4 adverse events (RR (1.25; 95% CI (1.02, 1.54)) when compared to placebo and the standard treatment group. Subgroup analysis showed that the use of vaccine therapy in prostate cancer leads to significant improvement in OS (HR 0.83; 95% CI (0.74, 0.93)) and PFS (HR 0.80; 95% CI (0.67, 0.95)) compared to placebo and standard treatment. The use of immune checkpoint inhibitors was not associated with statistically significant improvement in OS (HR 0.98; 95% CI (0.88, 1.09)) but is associated with improvement in PFS (HR 0.87; 95%CI (0.81, 0.94)). Conclusions: This meta-analysis showed that immunotherapy led to significant improvement in OS, PFS and PSA reduction of ≥ 50%. However, there is an increased incidence of grade 3-4 adverse events with the use of immunotherapy when compared to other standard therapies and placebo. The improvement in overall survival is limited to the use of vaccine therapy and not to immune checkpoint inhibitors. Careful use of selective forms of immunotherapy in mCRPC can lead to greater improvement in survival.


2021 ◽  
Vol 11 ◽  
Author(s):  
Donghui Wang ◽  
Cen Chen ◽  
Yanli Gu ◽  
Wanjun Lu ◽  
Ping Zhan ◽  
...  

BackgroundImmune-related adverse events (irAEs) have been reported to be associated with the efficacy of immunotherapy. Herein, we conducted a meta-analysis to demonstrate that irAEs could predict the efficacy of immune checkpoint inhibitors (ICIs) in lung cancer patients.MethodsLiterature on the correlation between irAEs and the efficacy of immunotherapy in lung cancer patients were searched to collect the data on objective response rate (ORR), overall survival (OS), or progression-free survival (PFS) of the patients. These data were incorporated into the meta-analysis.ResultsA total of 34 records encompassing 8,115 patients were examined in this study. The irAEs occurrence was significantly associated with higher ORR {risk ratio (RR): 2.43, 95% confidence interval (CI) [2.06–2.88], p &lt; 0.00001} and improved OS {hazard ratio (HR): 0.51, 95% CI [0.43–0.61], p &lt; 0.00001}, and PFS (HR: 0.50, 95% CI [0.44–0.57], p &lt; 0.00001) in lung cancer patients undergoing ICIs. Subgroup analysis revealed that OS was significantly longer in patients who developed dermatological (OS: HR: 0.53, 95%CI [0.42–0.65], p &lt; 0.00001), endocrine (OS: HR: 0.55, 95%CI [0.45–0.67], p &lt; 0.00001), and gastrointestinal irAEs (OS: HR: 0.58, 95%CI [0.42–0.80], p = 0.0009) than in those who did not. However, hepatobiliary, pulmonary, and high-grade (≥3) irAEs were not correlated with increased OS and PFS.ConclusionThe occurrence of irAEs in lung cancer patients, particularly dermatological, endocrine, and gastrointestinal irAEs, is a predictor of enhanced ICIs efficacy.


BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Luisa Maria Griewing ◽  
Claudia Schweizer ◽  
Philipp Schubert ◽  
Sandra Rutzner ◽  
Markus Eckstein ◽  
...  

Abstract Background Immune checkpoint inhibitors (ICI) have become standard treatment in different tumor entities. However, safe treatment with ICI targeting the PD-1/PD-L1 axis requires early detection of immune-related adverse events (irAE). There exist different questionnaires of drug manufacturers for the detection of irAE that have not been validated so far. Methods The prospective non-interventional ST-ICI trial studied treatment with PD-1/PD-L1 ICI alone or combined with radiotherapy. In the current analysis, the detection rate of self-reported irAE with a patient questionnaire containing 41 different questions was compared to clinician-reported irAE. Results Between April 2017 and August 2019, a total of 104 patients were prospectively enrolled. NSCLC (44%) and HNSCC (42%) were the most frequent tumor entities. A total of 784 questionnaires were collected. A total of 29 irAE were reported by clinicians. The most frequent irAE was hypothyroidism (9%), followed by skin reactions (5%), hepatitis (4%), diarrhea (3%), and pneumonitis (3%). Questions that became significantly more often positive at time points of clinician-reported irAE were “weight change”, “difficulty to grip things”, “bloody or mucous stool” and “insomnia”. Self-reported organ-specific questions detected at least 50% of clinician-reported irAE of gastrointestinal, lung, endocrine, and skin irAE. It was not possible to detect hepatic irAE with the questionnaire. Conclusion Questionnaires can help to detect gastrointestinal, lung, endocrine, or skin irAE, but not hepatic irAE. Questions on “weight change” and “insomnia” may help to increase the detection rate of irAE, besides organ-specific questions. These results are a valuable contribution to the future development of a specific and practicable questionnaire for early self-reported detection of irAE during ICI therapy in cancer patients. Trial registration ClinicalTrials.gov, NCT03453892. Registered on 05 March 2018.


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