Risks of thromboembolic events among patients diagnosed with metastatic pancreatic ductal adenocarcinoma treated with chemotherapy.

2016 ◽  
Vol 34 (4_suppl) ◽  
pp. 380-380
Author(s):  
Bela Bapat ◽  
Sharvari Bhurke ◽  
Edward Rosen ◽  
Michael Stokes ◽  
Tarun Bhagnani ◽  
...  

380 Background: Clinical trials suggest that patients with metastatic pancreatic ductal adenocarcinoma (mPDA) are at a high risk of thromboembolic events (TEs) as a result of both disease and treatment. Real-world data on TE rates are limited for patients with mPDA. Methods: Using a retrospective cohort design, patients with mPDA aged ≥ 65 years and treated with chemotherapy during 2007-2012 were identified using the Surveillance, Epidemiology, and End Results (SEER)-Medicare database. Patients enrolled in Medicare parts A, B, and D were followed from the start of first-line chemotherapy (index date) to the earliest of disenrollment from Medicare, death, or 12/31/2012. The baseline (BL) period was defined as 12 months prior to the index date. The incidence of TEs was calculated as the number of events per 100 person-years (PY) of follow-up (F/U) among patients without a BL TE. Anticoagulant use during F/U was categorized as preventive (before first TE, if any) and treatment (on or after first TE date) among patients with no BL TE. Results: Of 1,308 patients meeting the selection criteria, the mean age was 74 years, and 56% were female. The prevalence of TEs during the study period (BL or F/U) was 58% (n = 755). Excluding the 427 patients (33%) with TEs during BL, 328/881 (37%) of patients had a first TE during F/U, for an incidence rate of 85/100PY, including 29/100PY arterial and 59/100PY venous events. In the full study cohort, only 467/1,308 (36%) had a claim for any anticoagulant during the study period, although inpatient anticoagulant use is likely under-reported. Among patients receiving anticoagulants, 287/467 (61%) received low molecular weight heparin (LMWH). Preventive anticoagulant use was observed in 74/881 (8%) of patients without a BL TE; anticoagulation treatment was observed for 159/328 (48%) patients with a first TE during F/U. Conclusions: Real-world mPDA patients face a significant risk of TEs both before and after starting chemotherapy. Although inpatient use of anticoagulants including LMWH is incomplete in this database, it is clear that use of anticoagulants for treatment, and for prevention, of TEs is sub-optimal.

2021 ◽  
Vol 11 ◽  
Author(s):  
Kenneth H. Yu ◽  
Andrew E. Hendifar ◽  
Olatunji B. Alese ◽  
Amber Draper ◽  
Maen Abdelrahim ◽  
...  

BackgroundThe NAPOLI-1 trial demonstrated that liposomal irinotecan in combination with fluorouracil (5-FU) and leucovorin (LV) prolonged survival with a manageable safety profile in patients with metastatic pancreatic ductal adenocarcinoma (mPDAC) previously treated with gemcitabine-based therapy. Real-world data on clinical outcomes associated with liposomal irinotecan in NAPOLI-1-based regimens is needed to further substantiate this.MethodsThis real-world, retrospective chart review study included patients with mPDAC who received NAPOLI-1-based regimens from six academic centers in the United States. Liposomal irinotecan initiation defined the index date. Overall survival (OS) and progression-free survival (PFS) were assessed with Kaplan-Meier methodology.ResultsThere were 374 patients evaluated; median age was 68 years, and 51% were female. Among 326 patients with baseline ECOG information, approximately 74% had ECOG score <2. Liposomal irinotecan was administered as a doublet with 5-FU in a NAPOLI-1-based regimen in the first line (1L; 16%), 2L (42%), and 3L+ (42%) of the metastatic setting. For patients treated in 1L, 2L, and 3L+, median [95% confidence interval (CI)] OS was 8.0 [5.1, 11.2], 7.3 [5.3, 8.8], and 4.6 [4.0, 5.7] months, and median [95% CI] PFS was 4.2 [2.2, 6.6], 3.0 [2.6, 3.7], and 2.0 [1.7, 2.2] months, respectively.ConclusionsPatients in a real-world setting treated with NAPOLI-1-based liposomal irinotecan doublet regimens at academic centers were older with poorer performance status compared to trial patients yet had similar outcomes and efficacy. Furthermore, liposomal irinotecan was frequently used in the 3L+ setting where no treatment has been approved and provided clinical benefit.


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. e16733-e16733
Author(s):  
Kenneth H. Yu ◽  
Andrew Eugene Hendifar ◽  
Olatunji B. Alese ◽  
Amber Draper ◽  
Maen Abdelrahim ◽  
...  

e16733 Background: Real-world data allows healthcare decision-makers to assess and manage therapeutic and economic options for patients, including those who would and would not have met eligibility criteria for randomized control trials (RCT) and are instead managed under usual care. This retrospective multi-academic center chart review study describes real-world characteristics and outcomes of US patients receiving liposomal irinotecan for the management of metastatic pancreatic ductal adenocarcinoma (mPDAC). Methods: Patients with mPDAC treated with liposomal irinotecan were eligible. Initiation of liposomal irinotecan defined index date; covariates assessed included clinical characteristics and treatment patterns; real-world overall survival (rwOS) was assessed via Kaplan-Meier methodology. The target enrollment is 300 patients. The study centers included were Memorial Sloan Kettering Cancer Center, Cedars-Sinai Medical Center, Emory Winship Cancer Institute, Houston Methodist Cancer Center, Henry Ford Cancer Institute, and University of Pittsburgh Medical Center. Results: Data on 26 patients were available for initial analyses. Mean age was 68 years; 58% were female and 65% Caucasian. 54% of patients had stage IV disease at first diagnosis, and 17%, 65%, and 17% had index ECOG score of 0, 1, and 2, respectively. Common genetic mutations include KRAS (40%) and TP53 (40%). Prior to liposomal irinotecan, treatments received for metastatic disease include gemcitabine+nab-paclitaxel (77%) and fluorouracil (5-FU)/leucovorin (LV)+irinotecan+oxaliplatin (19%). Patients had received 0 (12%), 1 (23%), and ≥2 (65%) lines of therapy in the metastatic setting prior to liposomal irinotecan. Mean duration of liposomal irinotecan use was 3.0 months; liposomal irinotecan was mostly received with 5-FU (23%) or 5-FU/LV (69%). Median rwOS was 4.9 months (95% CI: 3.0, 6.3). Conclusions: Real-world data of the first 26 patients in this study show patients treated with liposomal irinotecan are older, sicker, and have had more lines of therapy than previously reported in RCT data.


2021 ◽  
Author(s):  
Se Jun Park ◽  
Hyunho Kim ◽  
Kabsoo Shin ◽  
Tae Ho Hong ◽  
Ja Hee Suh ◽  
...  

Abstract BackgroundAccording to the NAPOLI-1 trial, nanoliposomal irinotecan (nal-IRI) plus 5-fluorouracil/leucovorin (5-FU/LV) showed improved overall survival compared to fluorouracil alone for patients with metastatic pancreatic cancer who previously treated gemcitabine-based therapy. In that trial, Asian patients had frequent dose modification due to hematological toxicity. There has been limited information on the clinical benefit and toxicity of this regimen in a real-world setting. Herein, we assessed real-world experience of nal-IRI plus 5-FU/LV in patients with advanced pancreatic cancer after gemcitabine failure.MethodsWe conducted a single institution retrospective analysis of response, survival and safety in patients who had been treated with nal-IRI with 5-FU/LV. Patients with metastatic pancreatic ductal adenocarcinoma previously treated with gemcitabine-based therapy received nal-IRI (80mg/m2) with 5-FU/LV every 2 weeks. ResultsFifty-one patients received nal-IRI plus 5-FU/LV between January 2015 and December 2020. The median age was 67 years, and males were 58.8%. A total of 40 (78.4%) and 11 (21.6%) patients had received one and two lines of prior chemotherapy before enrollment, respectively. Median progression-free survival was 2.8 months (95% confidence interval [CI] 1.8-3.7) and median overall survival was 7.0 months (95% CI 6.0-7.9). Chemotherapy doses were reduced or delayed in 33 (64.7%) patients during the first 6 weeks and median relative dose intensity was 0.87. Thirty-six (70.6%) patients experienced any grade 3 or 4 adverse events. Most common grade 3 or 4 adverse event was neutropenia (58.8%) and most non-hematologic adverse events were under grade 2. Since the start of first-line chemotherapy, median overall survival was 16.3 months (95% CI 14.1-18.4).ConclusionsNal-IRI plus 5-FU/LV seems to be effective, with manageable toxicities, after gemcitabine-based treatment in patients with metastatic pancreatic ductal adenocarcinoma. Trial registration Retrospectively registered


2020 ◽  
Vol 35 (Supplement_3) ◽  
Author(s):  
Juan Jose Garcia Sanchez ◽  
Juan Jesus Carrero ◽  
Supriya Kumar ◽  
Roberto Pecoits-Filho ◽  
Glen James ◽  
...  

Abstract Background and Aims In 2012, the Kidney Disease Improving Global Outcomes (KDIGO) guidelines recommended categorising and prognosticating chronic kidney disease (CKD) based on estimated glomerular filtration rate (eGFR) and urine albumin to creatinine ratio (UACR). Contemporary studies describing the prevalence and characteristics of patients with CKD categorised according KDIGO 2012 and how studies of new pharmacotherapies relate to these categories are scarce. One such new therapy class of key interest are the sodium glucose co-transporter 2 inhibitors (SGLT-2i), shown to delay the progression to renal failure and prevent cardiovascular/renal death in patients with CKD. We aimed to describe patient characteristics and the prevalence of CKD according to the 2012 KDIGO categories in a large real-world US cohort of patients with CKD (part A). We also describe a subset of the population according to the DAPA-CKD trial inclusion criteria (eGFR [25-75ml/min/1.73m2] and UACR [200-5000mg/g]) (part B). Method DISCOVER-CKD is an international observational study in patients with CKD. The DISCOVER-CKD retrospective US cohort of patients was extracted using real-world data from the integrated Limited Claims and Electronic Health Record data (IBM Health, Armonk, NY) and HealthVerity. Patients were aged ≥18 years, with ≥1 UACR measure. For part A, required first diagnostic code of CKD (Stages 3A, 3B, 4, 5, or ESRD) or two eGFR of <75 mL/min/1.73 m2 recorded at least 90 days apart and for part B, two measures of eGFR 25-75 mL/min/1.73 m2 recorded at least 90 days apart between 1st January 2008 and September 2018. Index date was diagnostic code or 2nd eGFR. The first UACR, recorded +/-12 months of index, was used to categorise patients. Descriptive analyses were used to summarise prevalence and patient characteristics. Results Of the overall study cohort (N=4330, 49.1% women, mean age 65.3±10.64 years), by KDIGO categories (part A): 85.7% (n=3601) had normal to mildly increased albuminuria, 11.0% (n=463) had moderately increased albuminuria and 3.3% (n=137) had severely increased albuminuria (Figure 1). 4.6% (n=193) fulfilled DAPA-CKD trial inclusion criteria (part B). In both populations, the most common comorbidities were hypertension (HTN, 73.0% for both) and type 2 diabetes (T2D, 57.6% and 56.2%, respectively). Anti-hypertensive drugs were frequently used (76.4% and 76.9%, respectively). Conclusion This study, utilising real-world data, adds to the scarcity of knowledge reporting the characteristics of patients with CKD in different eGFR and UACR strata according to the KDIGO 2012 definitions. We observed a trend in higher UACR in the group of patients with lower eGFR and report a high prevalence of T2D and HTN in the study population, demonstrating the high co-morbidity burden in patients, for whom new therapies may be beneficial.


2018 ◽  
Vol 36 (4_suppl) ◽  
pp. 666-666
Author(s):  
Anuj K. Patel ◽  
Mei Sheng Duh ◽  
Victoria Barghout ◽  
Mihran Ara Yenikomshian ◽  
Yongling Xiao ◽  
...  

666 Background: FTD/TPI and REG both prolong survival in refractory mCRC and have similar indications with different side effect profiles. This study compares real-world treatment patterns with FTD/TPI and REG for mCRC in a large, representative US claims database. Methods: Retrospective data from 10/2014 to 7/2016 from the US Symphony Health Solutions’ Integrated Dataverse (IDV®) database were analyzed for patients receiving FTD/TPI or REG. The index date was the date of first FTD/TPI or REG prescription. Patients were included if: 1) age ≥18 years old, 2) ≥1 CRC diagnosis, 3) no diagnosis of gastric cancer or gastrointestinal stromal tumor, and 4) continuous clinical activity for ≥3 months before and after index date. The observation period spanned from index date to end of data, end of continuous clinical activity, or switch to another mCRC treatment. Adherence was assessed using medication possession ratio (MPR) ≥0.80 and proportion of days covered (PDC) ≥0.80 at 3 months. Compliance was assessed using time to discontinuation over the observation period using allowable gaps of 45, 60, or 90 days. Patients who never discontinued therapy were censored at the end of the observation period. Outcomes were compared between FTD/TPI and REG using multivariate logistic regression and Cox proportional hazards models, adjusting for demographic and clinical baseline characteristics. Results: A total of 1,630 FTD/TPI patients and 1,425 REG patients were identified. Mean ± standard deviation (SD) age of FTD/TPI patients was 61.0 ± 11.0 compared to 62.8 ± 10.9 for REG patients (p < 0.001). FTD/TPI patients were 80% more likely to have a MPR ≥0.80 compared to those on REG (Odds Ratio [OR] = 1.80, p < 0.001) and more than twice as likely to have a PDC ≥0.80 (OR = 2.66, p < 0.001) at 3 months. FTD/TPI patients were 37% less likely to discontinue their treatment compared to those on REG when using gaps of 60 days (Hazard Ratio = 0.63, p < 0.001). Similar results were found with 45 and 90 days. Conclusions: In this retrospective study of mCRC patients, patients on FTD/TPI were significantly more likely to adhere and comply with therapy compared to those on REG.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e15754-e15754
Author(s):  
Ahmed Khattab ◽  
Yesica Garciafigueroa ◽  
Brett Phillips ◽  
Sunita Patruni ◽  
Amir Kamran ◽  
...  

e15754 Background: Obesity is an established risk factor for cancer and cancer-related mortality. Adipocytes may act as a “damage” signal resulting in the accumulation of innate immune cells, fueling an inflammatory micro-environment. Among the innate immune cells, tumor-associated neutrophils (TANs) are confirmed to accumulate inside the tumor. As obesity is a significant risk factor for a poorer prognosis in pancreatic ductal adenocarcinoma (PDAC), we hypothesize that obesity-driven adipose fuels the progression of PDAC in a TAN and inflammasome-facilitated manner. This may happen through several mechanisms, including genomic instability of aggressive PDAC clonal populations. Methods: Tissue from resected tumors of PDAC patients with a body-mass index (BMI) > 27 (obesity, n = 5) and BMI < 22 (normal, n = 5) were incubated with anti-human IL-18 and CD66b antibodies and detected using Alexa Fluor 488-conjugated donkey anti–mouse and Alexa Fluor 594-conjugated goat anti-rabbit secondary antibodies. Images were acquired in a Zeiss Axioplan microscope workstation and analyzed by ZEN and Metamorph software. Results: We identified the presence of CD66b+ neutrophils and IL-18 in all tissue sections. There is a significantly greater density of CD66b+ neutrophils and IL-18 in the tumor environment when compared to adjacent normal areas and IL-18+ signals appear to be deposited alongside the luminal area in a unique lasso-like pattern. These data suggest an association between BMI and inflammasome accumulation in the tumor environment. There does not appear to be an association between tumor stage and TAN or IL-18 accumulation in the tumor area or the adjacent normal tissue in the tissues. Conclusions: Our data uniquely shows that CD66b+ neutrophils accumulate inside PDAC and this is associated with intra-tumoral active inflammasomes. The novel periductal deposition of IL-18 in the tumor areas may be of mechanistic relevance in understanding how inflammation induces progression of PDAC. A larger cohort of tissues from PDAC obtained from low and high BMI individuals will be needed to test our hypothesis and to begin to decipher the role of obesity on inflammation and PDAC progression.


2020 ◽  
Vol 38 (15_suppl) ◽  
pp. 4527-4527
Author(s):  
Ryohei Kawabata ◽  
Yasuhiro Sakamoto ◽  
Eisuke Inoue ◽  
Atsushi Ishiguro ◽  
Yusuke Akamaru ◽  
...  

4527 Background: Nivolumab (Nivo) demonstrated survival benefit in previously treated gastric cancer (GC) patients (pts), with a response rate (RR) of 11% and a disease control rate (DCR) of 40% (Kang YK, et al. Lancet 2017). There are few real-world data of Nivo and its predictive markers are needed in GC. It has been demonstrated that some tumors grow rapidly after Nivo treatment, but the proportion is uncertain. Methods: DELIVER trial was a prospective, multicenter, observational/translational study which assessed pts with advanced GC treated with Nivo alone and ECOG Performance Status (PS) 0-2 (UMIN000030850). The aims were to evaluate the efficacy and safety of Nivo in real world, and to discover novel host-related immune-biomarkers (gut microbiome, genetic polymorphism, gene expression, and metabolome) using fecal and blood samples which were collected before and after Nivo treatment. The RR, DCR, progression-free survival, overall survival, and tumor growth rate (TGR) were estimated as the efficacy. The response was evaluated by first imaging based on RECIST version 1.1. The TGR was calculated as a percentage increase in tumor volume during 1 month (Champiat et al. Clin Cancer Res 2017). Results: A total of 501 pts was enrolled in this study from Mar 2018 to Aug 2019, and 487 pts were evaluable for analysis (median age 70-y, 71% male, ECOG PS0/1/2 42%/44%/14%, tub/por/sig 45%/41%/5%, 21% HER2-pos, 42% pts with ascites). The DCR was 39.2% (95%CI 34.9-43.7) in evaluable pts. In 282 pts with measurable lesions, the RR was 6.7% (95%CI 4.1-10.3) and DCR was 36.5%. Sub-analysis by patient background indicated that DCR was 41% for PS0, 42% for PS1, and 24% for PS2. In addition, the DCR was lower in pts with ascites compared to those without ascites (28.6% vs. 47.0%, p= 0.005). The TGR decreased after introduction of Nivo in 124 (56.6%) of 219 evaluable pts for TGR; however, 20.5% pts were identified as experiencing hyper-progressive disease (HPD) which was defined as a ≥2-fold increase of the TGR before and after Nivo. When defining HPD as a ≥2-fold increase of tumor growth kinetics ratio and 50% increase of tumor burden, 9.6% pts experienced it. Conclusions: The real-word data of the large observational trial showed a comparable DCR to that of clinical trial in advanced GC treated with Nivo. This trial revealed the tumor behavior and some pts who experienced rapid tumor growth after Nivo treatment in clinical practice; biomarkers for HPD and the definition should be established. Clinical trial information: UMIN000030850 .


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