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A Systematic Review and Meta-Analysis of Immune-Related Adverse Events of Anti-PD-1 Drugs in Randomized Controlled Trials.

ABSTRACT: OBJECTIVE:We aimed to evaluate immune-related adverse events occurring in clinical trials of anti-programmed cell death 1 (PD-1) drugs, compared with control treatments, including chemotherapy, targeted drugs, or placebo. Further we compared the occurrence of immune -related events in patients treated with different anti-PD-1 drugs. DATA SOURCES:Randomized controlled trial (RCT) data were sourced from PubMed, Embase, and the Cochrane Central Register of Controlled Trials combined with https://clinicaltrials.gov. METHODS:Randomized controlled trial of anti-PD-1 drugs compared with control treatments published between January 1, 1970 and March 1,2019, were searched and data on trial patient characteristics, and adverse events extracted, reviewed, and subjected to meta-analysis. RESULTS:Eighteen Randomized controlled trials were included in our study. The Randomized controlled trials compared nivolumab (n = 12), pembrolizumab (n = 6), with chemotherapy (n = 13), targeted drugs (n = 2), or placebo (n = 3). Compared with the control group, the risk of any immune-related adverse events in patients treated with anti-PD-1 drugs was increased (RR, 2.65; 95% confidence interval, 1.84-3.83; P < 0.00001). Of the immune-related adverse events, the risk rates of pneumonitis (risk ratio, 2.10; 95% CI, 0.85-5.18), colitis (2.96;1.62-5.38), hypophysitis(4.79;1.54-14.89), hypothyroidism(7.87;5.36-11.57), hyperthyroidism (7.03;4.35-11.34), rash (1.58;0.98-2.54), pruritus (2.28; 1.38-3.76), and hepatitis (9.31;2.18-39.85) were increased by anti-PD-1 drugs. Further, the risk of immune-related adverse events was similar for patients treated with pembrolizumab and nivolumab (P = 0.14). CONCLUSIONS:In addition to previously reported organ-specific immune-related adverse events, we found that the risk of hyperthyroidism was also increased, in anit-PD-1-treated patients, relative to control treatments. The risk of total immune-related adverse events, was similar for pembrolizumab and nivolumab.

SUBMITTER: Wang Y

PROVIDER: S-EPMC7588773 | biostudies-literature | 2020 Jan-Dec

REPOSITORIES: biostudies-literature

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A Systematic Review and Meta-Analysis of Immune-Related Adverse Events of Anti-PD-1 Drugs in Randomized Controlled Trials.

Wang Yukun Y Kong Dejiu D Wang Chaokun C Chen Jing J Li Jing J Liu Zhiwei Z Li Xinyang X Wang Ziming Z Yao Ge G Wang Xinshuai X

Technology in cancer research & treatment 20200101

<h4>Objective</h4>We aimed to evaluate immune-related adverse events occurring in clinical trials of anti-programmed cell death 1 (PD-1) drugs, compared with control treatments, including chemotherapy, targeted drugs, or placebo. Further we compared the occurrence of immune -related events in patients treated with different anti-PD-1 drugs.<h4>Data sources</h4>Randomized controlled trial (RCT) data were sourced from PubMed, Embase, and the Cochrane Central Register of Controlled Trials combined ...[more]

PMID: 33084525

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Project description:OBJECTIVE:To evaluate rates of serious organ specific immune-related adverse events, general adverse events related to immune activation, and adverse events consistent with musculoskeletal problems for anti-programmed cell death 1 (PD-1) drugs overall and compared with control treatments. DESIGN:Systematic review and meta-analysis. DATA SOURCES:Medline, Embase, Cochrane Library, Web of Science, and Scopus searched to 16 March 2017 and combined with data from ClinicalTrials.gov. STUDY SELECTION:Eligible studies included primary clinical trial data on patients with cancer with recurrent or metastatic disease. DATA EXTRACTION:Three independent investigators extracted data on adverse events from ClinicalTrials.gov and the published studies. Risk of bias was assessed using the Cochrane tool by three independent investigators. RESULTS:13 relevant studies were included; adverse event data were available on ClinicalTrials.gov for eight. Studies compared nivolumab (n=6), pembrolizumab (5), or atezolizumab (2) with chemotherapy (11), targeted drugs (1), or both (1). Serious organ specific immune-related adverse events were rare, but compared with standard treatment, rates of hypothyroidism (odds ratio 7.56, 95% confidence interval 4.53 to 12.61), pneumonitis (5.37, 2.73 to 10.56), colitis (2.88, 1.30 to 6.37), and hypophysitis (3.38, 1.02 to 11.08) were increased with anti-PD-1 drugs. Of the general adverse events related to immune activation, only the rate of rash (2.34, 2.73 to 10.56) increased. Incidence of fatigue (32%) and diarrhea (19%) were high but similar to control. Reporting of adverse events consistent with musculoskeletal problems was inconsistent; rates varied but were over 20% in some studies for arthraligia and back pain. CONCLUSIONS:Organ specific immune-related adverse events are uncommon with anti-PD-1 drugs but the risk is increased compared with control treatments. General adverse events related to immune activation are largely similar. Adverse events consistent with musculoskeletal problems are inconsistently reported but adverse events may be common.

Project description:BackgroundImmune-related adverse events (irAEs) are of great interest and importance in clinical practice, and many deficiencies and controversies have been noted in the reporting of irAEs. Herein, we aimed to evaluate the current status of irAE reporting in randomized controlled clinical trials (RCTs) of PD-1/PD-L1 inhibitors and to attempt to explain and solve the current pitfalls associated with this reporting.Materials and methodsWe conducted a systematic review across multiple databases, including PubMed, Web of Science, Embase, and the Cochrane Library. The RCTs that compared PD-1/PD-L1 inhibitors with standard treatments were included. The Harms extension of the Consolidated Standards of Reporting Trials (CONSORT) was used to evaluate the completeness of irAE reporting.ResultsA total of 44 articles and 23,759 patients were included in the analysis. The terminology of the irAEs changed over time (p = .01) and was different among immune checkpoint inhibitors (ICIs) (p = .005). Twenty-two of the studies provided a definition of irAE, but only four of them concretely addressed this definition. The incidence of any grade of irAEs ranged from 16.9% to 96%, whereas grade 3-4 irAE ranged from 2% to 23%. The RCTs with combined therapy exhibited a higher incidence of grade 3-4 irAEs (p = .012). Thirty-two studies reported irAEs in the control arms, whereas seven studies reported irAEs only in the experimental arms. Respiratory, endocrine, and gastrointestinal disorders were the most commonly reported irAEs. IrAEs were generally neglected in the introduction or conclusion sections in all of the study reviews and were never subjected to subgroup analyses. Moreover, withdrawals due to severe irAEs, as well as clarifications of the irAE collection methods, were also poorly reported. RCTs using combination therapies in the experimental arms were associated with a higher reporting quality (p = .032). However, the completeness of the reporting did not improve over the last 5 years (p = .076).ConclusionThe reporting of irAEs was inadequate, and there are still inconsistencies and controversies in the reporting of irAEs. In the future, authors should be encouraged to adhere to the Harms extension of the CONSORT statement.Implications for practicePD-1/PD-L1 inhibitors profoundly changed the landscape of cancer treatment, and thousands of randomized controlled clinical trials (RCTs) were active or completed over the past decade. However, different from chemotherapy or targeted therapy, the profile of immune-related adverse effects (irAE) was unique. An understanding of irAEs is developed mainly from clinical trials; however, inconsistencies and controversies between trials were noted. This study primarily reviewed the evolution of irAE terminology and definitions and evaluated the reporting quality of each RCT. It was found that RCTs using combined immunotherapy were associated with higher quality of irAE reporting. This article identifies the controversies and deficiencies in current irAE reporting and provides possible explanations and suggestions for these inadequacies.

Project description:BackgroundAlthough combination therapy with immune checkpoint inhibitors (ICIs) provides a promising efficacy in multiple cancers, their use is facing challenges for a high incidence of adverse effects. This meta-analysis was conducted to compare the risks of organ-specific immune-related adverse events (IRAEs) associated with ICI monotherapy versus combination therapy among cancer patients.MethodsElectronic databases were systematically searched to include eligible randomized controlled trials (RCTs). Any-grade and 3-5 grade IRAEs (colitis, pneumonitis, hepatitis, hypothyroidism, hyperthyroidism, and hypophysitis) were extracted for meta-analysis. Two reviewers independently assessed the methodological quality. The RevMan 5.3.5 software was used for meta-analysis.ResultsA total of 10 studies involving 8 RCTs with 2716 patients were included in this study. The most common any-grade adverse event was colitis (14.5%), followed by hypothyroidism (13.8%), hepatitis (10.4%), hypophysitis (10.0%), hyperthyroidism (9.3%), and pneumonitis (4.6%). Meta-analysis showed that ICI combination therapy significantly increased the risks of any-grade IRAEs in colitis [relative risk (RR), 3.56; 95% confidence interval (CI), 1.56-8.12; p < 0.05], pneumonitis (RR, 2.31; 95% CI, 1.54-3.45; p < 0.05), hepatitis (RR, 2.54; 95% CI, 1.65-3.91; p < 0.05), hypothyroidism (RR, 2.17; 95% CI, 1.71-2.76; p < 0.05), hyperthyroidism (RR, 3.13; 95% CI, 2.08-4.70; p < 0.05), and hypophysitis (RR, 3.54; 95% CI, 2.07-6.07; p < 0.05) compared with ICI monotherapy, as well as 3-5 grade IRAEs in colitis (RR, 2.50; 95% CI, 1.62-3.86; p < 0.05), pneumonitis (RR, 1.99; 95% CI, 1.00-3.93; p = 0.05), and hepatitis (RR, 2.70; 95% CI, 1.29-5.63; p < 0.05).ConclusionsThis meta-analysis demonstrated that, compared with ICI monotherapy, patients receiving ICI combination therapy significantly increased organ-specific IRAEs in colitis, hypothyroidism, hepatitis, hypophysitis, hyperthyroidism, and pneumonitis. The incidence and severity of organ-specific IRAEs were drug and dose independent.

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A Systematic Review and Meta-Analysis of Immune-Related Adverse Events of Anti-PD-1 Drugs in Randomized Controlled Trials.

Publications

A Systematic Review and Meta-Analysis of Immune-Related Adverse Events of Anti-PD-1 Drugs in Randomized Controlled Trials.

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