scholarly journals Immune-Related Adverse Events (irAE) in Cancer Immune Checkpoint Inhibitors (ICI) and Survival Outcomes Correlation: To Rechallenge or Not?

Cancers ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 989
Author(s):  
Heidar J. Albandar ◽  
Jacob Fuqua ◽  
Jasim M. Albandar ◽  
Salahuddin Safi ◽  
Samuel A. Merrill ◽  
...  

Introduction: There is growing recognition of immune related adverse events (irAEs) from immune checkpoint therapies being correlated with treatment outcomes in certain malignancies. There are currently limited data or consensus to guide management of irAEs with regards to treatment rechallenge. Methods: We conducted a retrospective analysis with an IRB-approved protocol of adult patients seen at the WVU Cancer Institute between 2011–2019 with a histopathologic diagnosis of active cancers and were treated with immune checkpoint inhibitors (ICI) therapy. Results: Demographics were similar between the ICI interrupted irAE groups within cancer types. Overall, out of 548 patients who received ICI reviewed, there were 133 cases of ≥1 irAE found of any grade. Being treated with anti-CTLA-4 inhibitor ICI was associated with lower risk of death compared to anti-PD-1 ICI. The overall survival difference observed for irAE positive patients, between rechallenged (37.8 months, reinitiated with/without interruption; 38.6 months, reinitiated after interruption) and interrupted/non-reinitiated (i.e., discontinued) groups (24.9 months) was not statistically significant, with a numerical trend favoring the former. Conclusions: Our exploratory study did not identify significantly different survival outcomes among the Appalachian West Virginia adult cancer patients treated with ICI who developed irAE and had treatment reinitiated after interruption, when compared with those not reinitiated.

2020 ◽  
Vol 132 ◽  
pp. 61-70 ◽  
Author(s):  
Denis Maillet ◽  
Pauline Corbaux ◽  
Jean-Jacques Stelmes ◽  
Stéphane Dalle ◽  
Myriam Locatelli-Sanchez ◽  
...  

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.


2020 ◽  
Vol 21 (16) ◽  
pp. 5774 ◽  
Author(s):  
Noelia Vilariño ◽  
Jordi Bruna ◽  
Foteini Kalofonou ◽  
Garifallia G. Anastopoulou ◽  
Andreas A. Argyriou

Over the last decade, immune checkpoint inhibitors (ICIs) have revolutionized the treatment of several cancer types. ICIs work through the blockage of immune inhibitory signals, while increasing the T-cell specific immune antitumoral response. However, due to the fact that ICIs’ mechanism of action is not tissue antigen-specific and not limited to the tumor microenvironment, the use of cancer immunotherapy can produce a broad range of immune-related adverse events (irAEs). Neurological immune-related adverse events (NirAEs) are rare (the overall incidence varies between 1% to 6%), and these adverse events mainly concern the peripheral nervous system, rather than the central nervous system. Due to their potential severity, which could cause interruptions to cancer treatment, NirAEs are of particular clinical importance. Currently, the pathogenesis of these complications is not completely understood, although T-cells seem to play a principal role. Nevertheless, the development of NirAEs is likely to be a multifactorial and complex process. This conclusion can be extracted from the wide range of neurological auto-inflammatory and autoimmune disorders triggered or exacerbated by ICIs, and the extensive variability of the limited histological findings reported. The aim of this review is to summarize the potential immune-driven pathological mechanisms of NirAEs.


2021 ◽  
Vol 28 (6) ◽  
pp. 4392-4407
Author(s):  
Courtney H. Coschi ◽  
Rosalyn A. Juergens

Cancer immunotherapy has the goal of enhancing a patient’s intrinsic immune processes in order to mount a successful immune response against tumor cells. Cancer cells actively employ tactics to evade, delay, alter, or attenuate the anti-tumor immune response. Immune checkpoint inhibitors (ICIs) modulate endogenous regulatory immune mechanisms to enhance immune system activation, and have become the mainstay of therapy in many cancer types. This activation occurs broadly and as a result, activation is supraphysiologic and relatively non-specific, which can lead to immune-related adverse events (irAEs), the frequency of which depends on the patient, the cancer type, and the specific ICI antibody. Careful assessment of patients for irAEs through history taking, physical exam, and routine laboratory assessments are key to identifying irAEs at early stages, when they can potentially be managed more easily and before progressing to higher grades or more serious effects. Generally, most patients with low grade irAEs are eligible for re-challenge with ICIs, and the use of corticosteroids to address an irAE is not associated with poorer patient outcomes. This paper reviews immune checkpoint inhibitors (ICIs) including their mechanisms of action, usage, associated irAEs, and their management.


2020 ◽  
Vol 4 (Supplement_1) ◽  
Author(s):  
Samantha Kass Newman ◽  
Amanda C Leiter ◽  
Emily Carroll ◽  
Brooks C Danielle ◽  
Jennifer Ben Shimol ◽  
...  

Abstract Immune checkpoint inhibitors (ICI), such as monoclonal antibodies to cytotoxic T lymphocyte associated protein 4 (CTLA-4), programmed cell death 1 (PD-1) and PD ligand 1 (PD-L1) are recognized as effective cancer-directed therapies. Yet, ICI-induced activation of the immune system results in immune-related adverse events (irAEs) affecting many organs, including the thyroid. Separately, Vitamin D (Vit D) deficiency has been associated with increased risk of autoimmune thyroid disease. We hypothesized that patients who were Vit D deficient at the time of initiating ICI therapy would be more likely to develop thyroid irAEs. We retrospectively collected data for 411 patients who received ICIs at our institution between January 2011 and April 2017. We then identified 91 of these patients who had 25-OH Vit D levels obtained; 2 were excluded from analysis due to previous thyroidectomy. We recorded demographics, cancer type, Vit D level closest to the start date of ICI therapy, and thyroid irAEs. Patients were categorized as Vit D deficient (<20ng/mL), insufficient (20-29.9ng/mL) or sufficient (≥30ng/mL). We compared patient demographic and clinical characteristics between the VitD categories. Proportions were compared using Fisher’s Exact Test. Of the 89 patients, 48.3% were female and 51.7% were male. Mean age was 67.2 (SD±10.6) years with 57% white, 8% black, 10% hispanic, 7% Asian, and 18% other / unknown. 20% of patients had non-small cell lung cancer, 15% melanoma, 13% hepatocellular carcinoma, 12% multiple myeloma (MM), 8% renal cell carcinoma (RCC), 7% head and neck squamous cell carcinoma, 7% urothelial carcinoma and 18% other cancer types. 21.3% were Vit D deficient, 40.4% were insufficient, and 38.2% were sufficient. Patients with Vit D deficiency and insufficiency were younger (age 64.1± 11.7, 65.9±9.5 years, respectively) than the Vit D sufficiency group (70.1±10.5years, p=0.046). No significant differences between males and females were observed between Vit D categories. Across cancer types, the highest prevalence of Vit D deficiency was in RCC (42.9%) and MM (36.4%). Hispanic and Asian patients had the highest prevalence of Vit D deficiency (44.4% and 33.3%, respectively). 11 patients (12.4%) developed a thyroid irAE. Thyroid irAEs occurred in 5.3% with Vit D deficiency, 8.1% with Vit D insufficiency, and 20% with Vit D sufficiency, but the association was not statistically significant (p=0.2). In contrast to our hypothesis, Vit D deficiency was not associated with a higher rate of thyroid irAEs. In fact our data suggest that patients who are vitamin D sufficient at the time of starting ICI therapy may be at greater risk of developing thyroid irAEs. Our study is limited by small numbers and the retrospective nature of the study. Prospective studies should be performed to determine the significance of Vit D levels on ICI related thyroid disease.


2019 ◽  
Vol 26 (17) ◽  
pp. 3009-3025 ◽  
Author(s):  
Bin Li ◽  
Ho Lam Chan ◽  
Pingping Chen

Cancer is one of the most deadly diseases in the modern world. The last decade has witnessed dramatic advances in cancer treatment through immunotherapy. One extremely promising means to achieve anti-cancer immunity is to block the immune checkpoint pathways – mechanisms adopted by cancer cells to disguise themselves as regular components of the human body. Many review articles have described a variety of agents that are currently under extensive clinical evaluation. However, while checkpoint blockade is universally effective against a broad spectrum of cancer types and is mostly unrestricted by the mutation status of certain genes, only a minority of patients achieve a complete response. In this review, we summarize the basic principles of immune checkpoint inhibitors in both antibody and smallmolecule forms and also discuss potential mechanisms of resistance, which may shed light on further investigation to achieve higher clinical efficacy for these inhibitors.


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