Examining the real-world utility of immune checkpoint inhibitors in genitourinary oncology: A single-institution retrospective.

2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e17112-e17112
Author(s):  
Lydia Glick ◽  
Cassra Clark ◽  
Timothy M. Han ◽  
James Ryan Mark ◽  
Leonard G. Gomella ◽  
...  

e17112 Background: Immune Checkpoint Inhibitors (ICI) are increasingly utilized for genitourinary (GU) malignancies. However, data is lacking on the efficacy of these drugs in “real-world” populations - patients who do not fit the strict clinical trial criteria, but may still benefit from therapy. We performed a retrospective analysis of patients receiving ICI at a single tertiary-care institution, with special attention to clinical trial enrollment, adverse events, progression and survival. Methods: Patients receiving ICI for GU malignancies at Thomas Jefferson University Hospital from January 2017 to January 2019 were identified. Descriptive statistics of treatment and pathologies were performed. Progression-free survival (PFS) was calculated from start of ICI to documentation of progression or last follow-up. PFS and overall survival were assessed using Kaplan Meier log-rank test, stratified by trial enrollment. Results: 111 patients were included: 37 on ICI clinical trial, 70 received ICI “off-trial” and 4 received ICI in both settings. 11 patients (10%) underwent multiple courses of ICI throughout treatment. The number of patients initiating ICI increased annually; by 2018, the number of patients initiated on ICI “off-trial” exceeded those initiating ICI “on-trial” (79% vs 21%). Treated pathology included Urothelial Carcinoma (UC; 42%), Renal Cell Carcinoma (RCC; 28%), and Prostate Adenocarcinoma (PCa; 20%). “Off-trial” ICI was more often administered later in the disease course, compared to a more even distribution of “on-trial” ICI administration. Mean PFS and OS for both cohorts can be seen in Table. Conclusions: As seen in our single-institution referral center, the use of immune checkpoint inhibitors has significantly increased – and is now more commonly used off-trial than on-trial. As their use becomes more common, their efficacy in “off-trial” populations must be further investigated. [Table: see text]

2021 ◽  
Vol 9 (2) ◽  
pp. e001999
Author(s):  
Elizabeth Dudnik ◽  
Samuel Kareff ◽  
Mor Moskovitz ◽  
Chul Kim ◽  
Stephen V Liu ◽  
...  

BackgroundLittle is known regarding the efficacy of immune checkpoint inhibitors (ICI) in patients with advanced large-cell neuroendocrine lung carcinoma (aLCNEC).Methods125 consecutive patients with aLCNEC were identified in the electronic databases of 4 participating cancer centers. The patients were divided into group A (patients who received ICI, n=41) and group B (patients who did not receive ICI, n=84). Overall survival since advanced disease diagnosis (OS DX) and OS since ICI initiation (OS ICI) were captured.ResultsWith a median follow-up of 11.8 months (mo) (IQR 7.5–17.9) and 6.0mo (IQR 3.1–10.9), 66% and 76% of patients died in groups A and B, respectively. Median OS DX was 12.4mo (95% CI 10.7 to 23.4) and 6.0mo (95% CI 4.7 to 9.4) in groups A and B, respectively (log-rank test, p=0.02). For ICI administration, HR for OS DX was 0.59 (95% CI 0.38 to 0.93, p=0.02—unadjusted), and 0.58 (95% CI 0.34 to 0.98, p=0.04—adjusted for age, Eastern Cooperative Oncology Group (ECOG) performance status (PS), presence of liver metastases and chemotherapy administration). In a propensity score matching analysis (n=74; 37 patients in each group matched for age and ECOG PS), median OS DX was 12.5 mo (95% CI 10.6 to 25.2) and 8.4 mo (95% CI 5.4 to 16.9) in matched groups A and B, respectively (log-rank test, p=0.046). OS ICI for patients receiving ICI as monotherapy (n=36) was 11.0 mo (95% CI 6.1 to 19.4).ConclusionsWith the limitations of retrospective design and small sample size, the results of this real-world cohort analysis suggest a positive impact of ICI on OS in aLCNEC.


2019 ◽  
Vol 1 (Supplement_1) ◽  
pp. i14-i14
Author(s):  
Addison Barnett ◽  
Adam Lauko ◽  
Assad Ali ◽  
Hong Li ◽  
Soumya Sagar ◽  
...  

Abstract INTRODUCTION: Immune checkpoint inhibitors (ICI) have resulted in improved outcomes in a subset of patients with lung cancer. However, data describing the efficacy of ICI in lung cancer brain metastasis (LCBM) is limited. We analyzed overall survival (OS) in patients with LCBM treated with upfront ICI, defined as having received ICI within 90 days of LCBM diagnosis, compared to non-ICI therapies. METHODS: We reviewed 665 patients with LCBM who were diagnosed between 2000 and 2018 at a major tertiary care institution. Of those patients, 240 received ICI, 164 of which received ICI after 90 days and 76 received ICI within 90 days. Propensity score (PS) was calculated using a logistic regression model including age, KPS, number of baseline brain lesions, and presence of extra-cranial metastasis (ECM) at the time of BM diagnosis. OS from BM diagnosis between PS matched cohorts were compared using Kaplan-Meier, the Log-Rank test, and Cox proportional hazards model. RESULTS: Prior to PS matching, median survival between ICI and non-ICI cohorts was not significantly different (10.9 months for both, p=0.81), although more ICI patients had ECM (57.1% vs 40.9%, p=0.006). Following PS matching, the ICI (n=76) and non-ICI (n=76) cohorts had a median age (62.4 vs 62.3 years), KPS (80 for both), lesion number (2 for both), and ECM (56.6% for both). Of matched patients, 94% received SRS, 52% received WBRT, and 29% underwent surgical resection. Compared to non-ICI, the ICI cohort has a 2-year OS hazard ratio, HR=0.87 (95% CI=0.58–1.31, p=0.51). Median and 1-year survival were not significantly different between ICI and non-ICI cohorts (median: 10.9 vs 9.1 months; 1-yr: 43.0% vs 42.4%). CONCLUSION: Patients with BM from primary lung cancer who received ICI within 90 days of their BM diagnosis did not have improvement in OS compared to patients who received non-ICI therapies.


2019 ◽  
Vol 21 (Supplement_6) ◽  
pp. vi53-vi53
Author(s):  
Addison Barnett ◽  
Adam Lauko ◽  
Hong Li ◽  
Assad Ali ◽  
Soumya Sagar ◽  
...  

Abstract INTRO/OBJECTIVE Immune checkpoint inhibitors (ICI) have improved outcomes in a subset of patients with lung cancer. However, data describing the efficacy of ICI in lung cancer brain metastasis (LCBM) is limited. We analyzed overall survival (OS) in patients with LCBM treated with upfront ICI, defined as having received ICI within 90-days of LCBM diagnosis, compared to non-ICI therapies. METHODS We reviewed 665 patients with LCBM diagnosed between 2000 and 2018 at a major tertiary care institution. Of those patients, 240 received ICI, 164 of which received ICI after 90-days and 76 received ICI within 90-days. Propensity score (PS) was calculated by logistic regression model including age, KPS, number of baseline brain lesions, and presence of extra-cranial metastasis (ECM) at time of LCBM diagnosis. OS from LCBM diagnosis between PS matched cohorts were compared using Kaplan-Meier, the Log-Rank test, and Cox proportional hazards models. RESULTS Prior to PS matching, median survival between ICI and non-ICI cohorts was not significantly different (10.9 months for both, p=0.81), although more ICI patients had ECM (57.1% vs 40.9%, p=0.006). Following PS matching, the ICI (n=76) and non-ICI (n=76) cohorts had median age (62.4 vs 62.3 years), KPS (80 for both), lesion number (2 for both), and ECM (56.6% for both). Of matched patients, 94% received SRS, 52% received WBRT, and 29% underwent surgical resection. Compared to non-ICI, the ICI cohort had a 2-year OS hazard ratio=0.87 (95% CI=0.58–1.31, p=0.51). Median and 1-year survival were not significantly different between ICI and non-ICI cohorts (median: 10.9 vs 9.1 months; 1-yr: 43.0% vs 42.4%). CONCLUSION Patients with LCBM who received ICI within 90-days of their diagnosis did not have improvement in OS compared to patients who received non-ICI therapies. Evaluation of clinical factors that may affect the efficacy and durability of immunotherapy is ongoing and will be presented.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. 11531-11531
Author(s):  
Hazel O'Sullivan ◽  
Dearbhaile Collins ◽  
Deirdre O'Mahony ◽  
Derek Power ◽  
Richard Bambury ◽  
...  

11531 Background: In the era of cytotoxic chemotherapy, aggressive cancer treatment and hospitalization at the end of life (EOL) has been associated with a worse quality of death. Meanwhile, in the era of immunotherapy (IO), little is known of the impact of these novel agents on EOL care. The aim of this study was to evaluate the EOL care of metastatic cancer patients treated with immune checkpoint inhibitors. Methods: We conducted a retrospective analysis of patients prescribedPD1/L1 or CTLA-4 antibodies in Cork University Hospital (CUH) and Mercy University Hospital (MUH) between January 2013 to December 2018. Patients treated on a clinical trial were excluded. Results: We identified 224 patients treated with immune checkpoint inhibitors (outside of a clinical trial) in CUH and MUH over the described 6 year period. 108 of these patients were deceased, 102 electronic files were available for analysis. Of the 102 patients, 57 had metastatic melanoma, 33 non small cell lung cancer, 8 renal cell carcinoma, 4 had other advanced malignancies. 43% were female and 57% were male. 6% of patients had an ECOG performance status (PS) of 0 at diagnosis, 80% PS of 1 and 10% PS of 2. Median age at death was 62 years. 47 patients were treated with pembrolizumab, 26 nivolumab, 25 ipilimumab, 2 nivolumab/ipilimumab and 2 received atezolizumab. 29 patients received IO as first line treatment, 50 as second line, 17 as third line and 6 as fourth line. Median number of IO cycles received was 4 (range 1 - 41). Progression of disease (62%) and declining performance status (14%) were the most common reasons for discontinuation of IO treatment. 16 of the 102 patients received a further line of systemic therapy. Median time from last dose of IO to death was 57 days. 20 patients (20%) died within 30 days of last dose of IO. Of these 20 patients, the median number of cycles of IO received was 2 (range 1-7), 8 of these 20 patients received one cycle of IO only. 39 patients (38%) attended the ED in the last month of life. 47 (46%) patients had at least one hospital admission in the last month of life, the median hospital length of stay was 6 days (range 1-30) and 22 patients died in hospital. 94% of patients were referred to palliative care, the median time from palliative care referral to death was 64 days (range 1- 1010), 62% of patients died in hospice. Conclusions: Patients with advanced cancer treated with immunotherapy have high rates of hospital admissions and ED attendances despite early palliative care involvement. 20% of patients died within 30 days of IO. More research is needed to help physicians identify patients who are least likely to benefit from IO so as not to treat futile cases.


2021 ◽  
Author(s):  
Vanita Noronha ◽  
George Abraham ◽  
Vijay Patil ◽  
Amit Joshi ◽  
Nandini Menon ◽  
...  

2020 ◽  
Vol 8 (Suppl 3) ◽  
pp. A310-A310
Author(s):  
Krishna Gunturu ◽  
Muhammad Awidi ◽  
Rojer Ranjit ◽  
Brendan Connell ◽  
Rachel Carrasquillo ◽  
...  

BackgroundICI revolutionized modern Oncology landscape and being utilized in metastatic to adjuvant and neo-adjuvant settings. As Oncologists, we are treating cancer patients with ICI every day, yet there is still a lot that is unknown about these drugs. We don’t have clear understanding of the efficacy and toxicity when sequencing one ICI for another. We conducted a retrospective review of real world data at Lahey Hospital and Medical Center to understand further and to pave path for prospective studies to understand this issue further to improve patient care.MethodsWe retrospectively reviewed Oncology patient charts who received ICI between January1, 2014 to December 18, 2018. Total 483 patients received ICI during this time frame and 22 of these patients received a second ICI either as monotherapy or in combination with other ICI or chemotherapy.ResultsA total of 22 patients received subsequent ICI after the initial ICI as showed in table 1. 15 of the 22 (68%) patients were transitioned from one ICI to another monotherapy. 11 of these patients were transitioned secondary to disease progression (73%), three had immune related adverse events and one was switched per standard of care. One patient had ICI re-challenge. Three patients had a transition from ICI monotherapy to combination ICI therapy. One patient went onto chemo-immunotherapy and 2 patients transitioned from combination ICI to chemo-immunotherapy.Abstract 284 Table 1Real world data of sequencing immune checkpoint inhibitors (ICI) after initial ICIConclusionsICI therapy is evolving and patients are being treated with multiple lines of ICI. In current practices, ICI is frequently being transitioned from cytotoxic T-lymphocyte antigen 4 (CTLA-4) and programmed cell death 1 (PD-1) or its ligand, programmed cell death ligand 1 (PD-L1) classes or combined with chemotherapy or targeted therapy. It would be prudent to explore the effects of sequencing these medications either as a monotherapy or in combination with other therapies to better serve our patients and to prevent financial toxicity.


2020 ◽  
Vol 8 (Suppl 3) ◽  
pp. A388-A388
Author(s):  
Byoung Chul Cho ◽  
Ki Hyeong Lee ◽  
Ji-Youn Han ◽  
Byoung Yong Shim ◽  
Hye Ryun Kim ◽  
...  

BackgroundTargeting transforming growth factor-β (TGF-β) is reported to augment the efficacy of immune checkpoint inhibitors (ICIs) through either enhanced anti-tumor immunity or the correction of tumor microenvironment (TME). Therefore, the combination of vactosertib, a highly selective TGF-β RI kinase inhibitor, and durvalumab is anticipated to improve anti-tumor activity of the ICI. A phase 1b/2a study was conducted to evaluate the combination of vactosertib and durvalumab in patients with advanced NSCLC who progressed after platinum-based chemotherapy.MethodsPatients were treated with vactosertib at a dose of 200 mg twice daily (five days on and two days off) and durvalumab at a dose of 1500 mg every four weeks. Eligible patients were ≥19 years old with good performance status (ECOG 0–1) and have no prior exposure to immune checkpoint inhibitors or other TGF- β R1 kinase inhibitors. The objectives of this analysis were to evaluate the safety, antitumor activity including objective response rate (ORR), duration of response (DOR), and time to response (TTR) as well as circulating pharmacodynamic biomarkers related to TGF-β signaling. Response was assessed per RECIST (v1.1).ResultsBy August 4 2020, twenty-six PD-L1 positive (SP263 assay) patients were analyzed. Median age was 61.5 years (range 48–83), 69.2% were male, median number of previous lines of chemotherapy was 1 (range 1–4), and all patients were PD-L1 positive (15 patients with PD-L1≥25% and 11 patients with PD-L1 1–24%). The most frequently reported treatment-related adverse events (TRAE) were itching (38.5%) and skin rash (34.6%), but no Gr≥3 itching and rash were observed. Each case of the following was reported as Grade 3 TRAEs: adrenal insufficiency, anemia, and pneumonitis; Grade 4 TRAE, CPK increase, was observed in one patient. Objective response rate was 30.8% and 40.0% in patients with PD-L1≥1% and ≥25% respectively. Circulating PAI-1 and CTGF evaluated in 15 patients decreased significantly on Cycle 1 day 5. Ongoing biomarker results will be presented.ConclusionsThe combination of vactosertib and durvalumab has demonstrated a manageable safety profile and encouraging anti-tumor activity as a potential therapeutic strategy in patients with advanced NSCLC. The efficacy outcomes of this combination in a larger number of patients with advanced NSCLC will be followed.Trial RegistrationNCT03732274Ethics ApprovalThe study was approved by Ethics Board of Severance Hospital (4-2018-0892), National Cancer Center (NCC2019-0057), St. Vincent’s Hospital (VC19MDDF0205), and Chungbuk National University Hospital (2019-08-015).


Author(s):  
Revati Sharma ◽  
Elif Kadife ◽  
Mark Myers ◽  
George Kannourakis ◽  
Prashanth Prithviraj ◽  
...  

AbstractVascular endothelial growth factor tyrosine kinase inhibitors (VEGF-TKIs) have been the mainstay of treatment for patients with advanced renal cell carcinoma (RCC). Despite its early promising results in decreasing or delaying the progression of RCC in patients, VEGF-TKIs have provided modest benefits in terms of disease-free progression, as 70% of the patients who initially respond to the treatment later develop drug resistance, with 30% of the patients innately resistant to VEGF-TKIs. In the past decade, several molecular and genetic mechanisms of VEGF-TKI resistance have been reported. One of the mechanisms of VEGF-TKIs is inhibition of the classical angiogenesis pathway. However, recent studies have shown the restoration of an alternative angiogenesis pathway in modulating resistance. Further, in the last 5 years, immune checkpoint inhibitors (ICIs) have revolutionized RCC treatment. Although some patients exhibit potent responses, a non-negligible number of patients are innately resistant or develop resistance within a few months to ICI therapy. Hence, an understanding of the mechanisms of VEGF-TKI and ICI resistance will help in formulating useful knowledge about developing effective treatment strategies for patients with advanced RCC. In this article, we review recent findings on the emerging understanding of RCC pathology, VEGF-TKI and ICI resistance mechanisms, and potential avenues to overcome these resistance mechanisms through rationally designed combination therapies.


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