Response to salvage chemotherapy after progression on immune checkpoint inhibitors in patients with advanced urothelial carcinoma.

2020 ◽  
Vol 38 (6_suppl) ◽  
pp. 519-519
Author(s):  
Seung-Hoon Beom ◽  
Sun Young Rha ◽  
Joong Bae Ahn ◽  
Sang Joon Shin
Keyword(s):  
Overall Survival ◽  
Urothelial Carcinoma ◽  
Immune Checkpoint ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
Progression Free Survival ◽  
Salvage Chemotherapy ◽  
Free Survival ◽  
Platinum Based Chemotherapy ◽  
Advanced Urothelial Carcinoma

519 Background: Immune checkpoint inhibitors (ICI) are active in patients with advanced urothelial carcinoma which progressed to platinum-based chemotherapy. Recent data suggest that exposure to ICI improves response to salvage chemotherapy (SCT) in several cancer types. Here we evaluated whether PD-1/PD-L1 inhibitors affect the antitumor effects of SCT after ICI in patients with urothelial carcinoma. Methods: A retrospective study was conducted at Yonsei Cancer Center. Eligibility criteria were patients who received at least one SCT as 3rd-line or beyond, following progression after platinum-based chemotherapy and ICI and for whom efficacy data were available between January 2017 and September 2019. We evaluated efficacy outcomes to each therapy, including ORR by RECIST version 1.1, progression-free survival (PFS), and overall survival (OS). Results: In total, 35 patients met the inclusion criteria and were included in the analyses. ICIs were given as monotherapy and they were administrated as second-line in 48% and as later line in 52%. Twenty-six patients (74%) received a anti-PD-L1 inhibitor and 9 (26%) did a anti-PD-1 inhibitor. SCT included single paclitaxel (60%), MVAC (26%), gemcitabine/platinum combination (9%), and pemetrexed (6%). The ORR to SCT was 26%. Among 9 patients who received MVAC, 5 (55.5%) achieved a partial response. Median progression-free survival was 2.5 months and median overall survival was 7.8 months. A number of prior chemotherapy regimens was associated with response to SCT on univariate analysis. Conclusions: In urothelial cancer patients, the confirmed ORR (26%) to SCT after ICI exposure was higher as compared to historical data from the pre-ICI era. These data indicate that anti–PD-1/PD-L1 inhibitors could make tumors more vulnerable to subsequent chemotherapy.

Clinical significance of tumour mutation burden in immunotherapy across multiple cancer types: an individual meta-analysis

2020 ◽  
Vol 50 (9) ◽  
pp. 1023-1031
Author(s):  
Zhenyu Yang ◽  
Shiyou Wei ◽  
Yulan Deng ◽  
Zihuai Wang ◽  
Lunxu Liu
Keyword(s):  
Overall Survival ◽  
Immune Checkpoint ◽  
Immune Checkpoint Inhibitors ◽  
Response Rate ◽  
Checkpoint Inhibitors ◽  
Meta Analysis ◽  
Progression Free Survival ◽  
Cancer Type ◽  
Free Survival ◽  
Mutation Burden

Abstract Background Biomarkers for stratifying patients that could benefit from immune checkpoint inhibitors are necessary. Tumour mutation burden has recently become a promising biomarker in cancer, but the associations between tumour mutation burden and outcomes of immune checkpoint inhibitors treatment were not well-documented in present studies. Methods We searched PubMed, Web of Science and EMBASE databases up to 1 October 2019. Studies evaluated the association between tumour mutation burden and clinical outcomes were included. Hazard ratios and odds ratios were applied to estimate the association of tumour mutation burden score with overall survival, progression-free survival and response rate, respectively. The best cut-off value was chosen by best discriminated overall survival using Contal and O’Quigley method. Results Twenty-two studies involving 6171 patients in diverse cancers were included. The individual participant data meta-analysis demonstrated that high tumour mutation burden was associated with better overall survival (HR = 0.57, 95% CI = 0.50–0.64) and progression-free survival (HR = 0.50, 95% CI = 0.40–0.63) and higher response rate. The best cut-off values in each cancer type were 17.7/MB in non-small cell lung cancer, 7.9/MB in bladder cancer, 6.1/MB in melanoma, 12.3/MB in colorectal cancer, 6.9/MB in esophagogastric cancer, 10.5/MB in head and neck cancer. The pooled meta-analysis showed the prognosis value was robust and the sensitivity, specificity and area under the receiver operating characteristic curves in predicting response rates were 0.63, 0.71 and 0.73, respectively. Conclusions The present meta-analysis indicates tumour mutation burden is a promising predictor of immune checkpoint inhibitors therapy but the cut-off value differs in different cancers.

190 Timing of steroid doses and response rates to immune-checkpoint inhibitors in metastatic cancer

2020 ◽  
Vol 8 (Suppl 3) ◽  
pp. A204-A204
Author(s):  
Karine Tawagi ◽  
Diana Maslov ◽  
Victoria Simenson ◽  
Helen Yuan ◽  
Cameron Parent ◽  
...  
Keyword(s):  
Overall Survival ◽  
T Cell ◽  
Immune Checkpoint ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
Metastatic Cancer ◽  
Progression Free Survival ◽  
Response Rates ◽  
Free Survival ◽  
Treatment Type

BackgroundCorticosteroids (CS) are the mainstay of immune-related adverse effect (irAE) management, as well as for other indications in cancer treatment. Previous studies evaluating whether CS affect immune checkpoint inhibitor (CPI) efficacy compared patients receiving steroids vs. no steroids.1 This comparison may be confounded by different rates of irAEs, which are known to be associated with higher response rates to CPIs. Preclinically CS have been shown to diminish naïve T-cell proliferation and differentiation,2 though there is a paucity of clinical data evaluating how the timing of concomitant CS affects CPI efficacy.MethodsWe retrospectively collected data from patients treated with CPIs alone, who received CS during their CPI treatment at a single institution. Patients were allocated into two cohorts based on timing of initiation of CS (> 2 months vs. < 2 months after initiating CPI). Patient characteristics, irAEs, cancer type, treatment type, treatment response/progression per RECIST v1.1, and survival data were collected. Kaplan Meier and Cox proportional hazard regression methods were used to estimate hazard ratios (HR) for the primary endpoint of progression free survival (PFS) along with overall survival (OS).ResultsWe identified 247 patients with metastatic cancer who received CS concurrently with CPIs alone. The majority of patients had non-small cell lung cancer (n=98), followed by renal cell carcinoma (n=43), and melanoma (n=30). 242 patients were on PD-1 inhibitor monotherapy, while 45 patients received CPI in combination with anti-CTLA-4 ipilimumab (table 1). The median time on steroids for all patients was 1.8 months. After adjusting for differences in rates of treatment type, tumor type, brain metastases and irAEs, patients who were treated with CS > 2 months after starting CPI had a statistically significant longer progression free survival (PFS) [HR of 0.33, p≤0.0001], and overall survival (OS) [HR of 0.36, p≤0.0001] than those who received steroids < 2 months after starting CPI. Rates of irAEs in each group were not significantly different (p = 0.15). Objective response rate (ORR) for patients on CS > 2 months was 39.8%, vs. ORR for patients <2 months was 14.7% (p-value = <0.001).Abstract 190 Table 1Cancer subtypes and drug types in the study population (n=247)ConclusionsAfter adjusting for possible confounding factors such as rates of irAEs, our results suggest that early use of steroids during CPI treatment significantly hinders CPI efficacy. These data need to be validated prospectively. Future studies should focus on the immune mechanisms by which CS affect T-cell function early in CPI treatment course.ReferencesGarant A, Guilbault C, Ekmekjian T, Greenwald Z, Murgoi P, & Vuong T. ( 2017). Concomitant use of corticosteroids and immune checkpoint inhibitors in patients with hematologic or solid neoplasms: a systematic review. Critical reviews in oncology/hematology120, 86–92.Giles AJ, Hutchinson MKN, Sonnemann HM, Jung J, Fecci PE, Ratnam NM,. .. & Reid CM. Dexamethasone-induced immunosuppression: mechanisms and implications for immunotherapy. Journal for immunotherapy of cancer 2018;6(1):1–13.

637 Immune-related adverse events (irAEs) may indicate a favorable prognosis in metastatic renal cell carcinoma (mRCC) patients treated with immune checkpoint inhibitors (ICI)

2020 ◽  
Vol 8 (Suppl 3) ◽  
pp. A672-A673
Author(s):  
Dylan Martini ◽  
Sean Evans ◽  
Subir Goyal ◽  
Yuan Liu ◽  
T Anders Olsen ◽  
...  
Keyword(s):  
Renal Cell Carcinoma ◽  
Overall Survival ◽  
Adverse Events ◽  
Clinical Outcomes ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
Progression Free Survival ◽  
Free Survival ◽  
Kaplan Meier ◽  
Emory University

BackgroundImmune checkpoint inhibitors (ICI) have become an increasingly utilized treatment in metastatic renal cell carcinoma (mRCC). Although they have a favorable toxicity profile, immune-related adverse events (irAEs) can have a significant impact on patients‘ quality of life. It is not well understood whether irAEs are associated with improved clinical outcomes. We investigated the relationship between irAEs and clinical outcomes in mRCC patients treated with ICI.MethodsWe performed a retrospective study of 200 patients with mRCC who received ICI at Winship Cancer Institute of Emory University from 2015–2020. Clinical outcomes were measured by overall survival (OS), progression-free survival (PFS), and clinical benefit (CB). OS and PFS were calculated from ICI-initiation to date of death and radiographic or clinical progression, respectively. CB was defined as a best radiographic response of complete response (CR), partial response (PR), or stable disease (SD) for >6 months per response evaluation criteria in solid tumors (RECIST) version 1.1. Toxicity data was collected from clinic notes and laboratory values. The association with OS and PFS was modeled by Cox proportional hazards model. Kaplan-Meier curves were created for survival estimates.ResultsMost patients were males (71%), and 78% had clear-cell RCC (ccRCC). Most patients (58%) received anti-PD-1 monotherapy. The majority were international mRCC database consortium (IMDC) intermediate (57%) or poor-risk (26%). Anti-PD-1 monotherapy was the most common (58%) treatment regimen and most patients received ICI as first (38%) or second-line (42%) treatment. One-third of patients (33%) experienced an irAE, with the most common being endocrine (13%), gastrointestinal (11%), and dermatologic (10%). Patients who experienced irAEs had significantly longer OS (HR: 0.52, 95% CI: 0.32–0.87, p=0.013), higher chance of CB (OR: 2.10, 95% CI: 1.11–4.00, p=0.023) and showed a trend towards longer PFS (HR: 0.71, 95% CI: 0.49–1.02, p=0.065) in MVA (table 1). Patients who had thyroid irAEs had significantly longer OS, PFS, and higher chance of CB in MVA (table 1). The objective response rate was higher for patients who experienced irAEs (34% vs. 18%). Patients who experienced irAEs had significantly longer median OS (44.5 vs. 18.2 months, p=0.005) and PFS (7.5 vs 3.6 months, p=0.0028) compared to patients who did not (figure 1).Abstract 637 Table 1MVA* of association between irAEs and clinical outcomesAbstract 637 Figure 1Kaplan-Meier curves of association between immune-related adverse events (irAEs) and overall survival (OS, top panel) and progression-free survival (PFS, bottom panel)ConclusionsWe showed that mRCC patients who experienced irAEs, particularly thyroid irAEs, had improved clinical outcomes. This suggests that irAEs may be prognostic of favorable outcomes in mRCC patients treated with ICI. Larger, prospective studies are needed to validate these findings.AcknowledgementsResearch reported in this publication was supported in part by the Breen Foundation and the Biostatistics Shared Resource of Winship Cancer Institute of Emory University and NIH/NCI under award number P30CA138292. The content is solely the responsibility of the authors and does not necessarily represent the official views of the National Institutes of Health.Trial RegistrationNot applicableEthics ApprovalThis retrospective study was approved by the Emory University Institutional Review Board.ConsentNot applicableReferencesNot applicable

The association between albumin-globulin ratio (AGR) and survival in patients treated with immune checkpoint inhibitors

2021 ◽  
pp. 1-11
Author(s):  
Deniz Can Guven ◽  
Oktay Halit Aktepe ◽  
Melek Seren Aksun ◽  
Taha Koray Sahin ◽  
Gozde Kavgaci ◽  
...  
Keyword(s):  
Immune Checkpoint ◽  
Immune Checkpoint Inhibitors ◽  
Multivariate Analyses ◽  
Checkpoint Inhibitors ◽  
Progression Free Survival ◽  
Free Survival ◽  
Patients With Cancer ◽  
Early Progression ◽  
Term Benefit

BACKGROUND: The albumin-globulin ratio (AGR) could be a prognostic biomarker in patients with cancer, although the data is limited in patients treated with immune-checkpoint inhibitors (ICIs). OBJECTIVES: We aimed to evaluate the association between AGR and survival in ICI-treated patients. METHODS: The data of 212 advanced-stage patients were retrospectively evaluated in this cohort study. The association between AGR with overall (OS) and progression-free survival (PFS) were evaluated with multivariate analyses. Additionally, receptor operating curve (ROC) analysis was conducted to assess the AGR’s predictive power in the very early progression (progression within two months) and long-term benefit (more than twelve months survival). RESULTS: The median AGR was calculated as 1.21, and patients were classified into AGR-low and high subgroups according to the median. In the multivariate analyses, patients with lower AGR (< 1.21) had decreased OS (HR: 1.530, 95% CI: 1.100–2.127, p= 0.011) and PFS (HR: 1.390, 95% CI: 1.020–1.895, p= 0.037). The area under curve of AGR to detect early progression and long-term benefit were 0.654 (95% CI: 0.562–0.747, p= 0.001) and 0.671 (95% CI: 0.598–0.744, p< 0.001), respectively. CONCLUSIONS: In our experience, survival with ICIs was impaired in patients with lower AGR. Additionally, the AGR values could detect the very early progression and long-term benefit ICIs.

scholarly journals First-Line Chemotherapy Response Is a Predictive Factor for Immune Checkpoint Inhibitors Treatment in Advanced Urothelial Carcinoma, a Real World Retrospective Study

2021 ◽  
Author(s):  
Jian-Ri Li ◽  
Shian-Shiang Wang ◽  
Kevin Lu ◽  
Chuan-Shu Chen ◽  
Chen-Li Cheng ◽  
...  
Keyword(s):  
Liver Metastases ◽  
Urothelial Carcinoma ◽  
Immune Checkpoint ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
The Other ◽  
Chemotherapy Response ◽  
First Line ◽  
Advanced Urothelial Carcinoma ◽  
Line Chemotherapy

Abstract Background: Immune checkpoint inhibitors (ICIs) have become important tools for the treatment of advanced urothelial carcinoma (aUC). However, the clinical strategy using ICIs and chemotherapy is still controversy. The aim of this study was to evaluate the association of clinical parameters in aUC patients with ICIs treatment.Methods: We retrospectively analyzed aUC patients who received atezolizumab and pembrolizumab between January 2015 and October 2020. The associations between baseline demographics and clinical outcomes were evaluated.Results: Of the 74 included patients, the median age was 67 years. Among them, 53 patients received atezolizumab and the other 21 received pembrolizumab. There were 50 patients receiving first line ICIs therapy and the other 24 received second line monotherapy. Fifty-two (83.87%, 52/62) received cisplatin among all chemotherapy patients. The median progression free survival was 10.94 months and the overall survival was 28.44 months. Poor chemotherapy response or no chemotherapy, liver metastases, Eastern Cooperative Oncology Group (ECOG) status and higher neutrophil/lymphocyte ratio (NLR) were associated with higher risk of diseases progression (HR=5.70, 95% CI 2.04-15.90, p=0.001, HR=6.08, 95% CI 1.79-20.57, p=0.004; HR=5.40, 95% CI 1.76-16.57, p=0.003; HR=6.08, 95% CI 2.56-14.44, p<0.001 and HR= 1.02, 95% CI 1.01-1.03, P=0.002 respectively). Liver metastases and WBC before ICI were associated with increased death risk (HR=11.95, 95%CI 3.22-44.34, p<0.001; HR=1.0001, 95% CI 1.00001-1.00002, p=0.036 respectively) while ICI response was associated with decreased death (HR=0.22, 95%CI 0.08-0.62, p=0.004). Chemotherapy responders were associated with better ICI treatment response (OR=6.52, 95%CI 1.45-29.24, p=0.014) while lymph node metastases and poor ECOG was associated with poor ICI response (OR=0.31, 95%CI 0.10-0.94, p=0.038; OR=0.32, 95%CI 0.11-0.95, p=0.040).Conclusions: Our data showed predictive role of first-line chemotherapy response to ICIs treatment efficacy in aUC patients as well as other prognostic factors, such as ECOG status, serum white blood cell count or NLR and liver metastases.

Comparative Analysis of Durable Responses on Immune Checkpoint Inhibitors Versus Other Systemic Therapies: A Pooled Analysis of Phase III Trials

2019 ◽  
pp. 1-10 ◽  
Author(s):  
Elvire Pons-Tostivint ◽  
Aurélien Latouche ◽  
Pauline Vaflard ◽  
Francesco Ricci ◽  
Delphine Loirat ◽  
...  
Keyword(s):  
Immune Checkpoint ◽  
Immune Checkpoint Inhibitors ◽  
Checkpoint Inhibitors ◽  
Progression Free Survival ◽  
Phase Iii ◽  
Durable Response ◽  
Free Survival ◽  
Drug Classes ◽  
Metastatic Setting ◽  
The Mean

PURPOSE Immune checkpoint inhibitors (ICIs) have been demonstrated to improve overall survival (OS) in several tumor types. Durable responses have been reported with these agents in patients with melanoma and lung cancer. We aimed to quantify the proportion of patients who experience durable responses on ICIs and to compare it with other drug classes. PATIENTS AND METHODS We retrieved published phase III randomized trials that included at least one ICI arm in the recurrent and/or metastatic setting. A durable response to treatment was defined as a progression-free survival that exceeded three times the median progression-free survival of the whole population. The proportion of patients who experienced an OS that exceeded two times the median OS of the whole patient population also was estimated. RESULTS Nineteen studies involving 11,640 patients treated in 42 treatment arms (26 ICI and 16 non-ICI arms) were included. The mean proportion of patients who experienced a durable response was 2.3 times higher in those treated with an ICI compared with those treated in the control arms (25% v 11%). Durable responses were more frequent in patients treated with anti–PD-1/PD-L1 agents than in patients treated with anti–CTLA-4 agents (28% v 18%). The mean proportion of patients who had an OS that exceeded two times the median OS was also higher in those treated with ICIs than in those treated in the control arms (30% v 23%). In multivariable analysis, the effects of treatment with anti–PD-1/PD-L1 agents and of first-line treatment were statistically associated with a higher mean proportion of durable responses. CONCLUSION Durable responses were more frequent in patients treated with ICIs, although they also occurred in patients treated with other drug classes.

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