Survival impact of neoadjuvant therapy in resected pancreatic cancer.

2016 ◽  
Vol 34 (4_suppl) ◽  
pp. 367-367
Author(s):  
Katelin Anne Mirkin ◽  
Christopher S Hollenbeak ◽  
Joyce Wong

367 Background: Pancreatic cancer carries a dismal prognosis, with surgical resection and adjuvant therapy offering the only hope for long-term survival. In recent years, neoadjuvant therapy (NAT) has been employed to optimize outcomes. This study evaluates the impact of NAT on survival in patients with resected stage I-III pancreatic cancer. Methods: The National Cancer Data Base (2003-2011) was analyzed for patients with clinical stage I-III resected carcinoma of the pancreas who underwent NAT or surgery first +/- adjuvant therapy. Univariate statistics were used to compare characteristics between groups. Analysis of variance and Kaplan Meier analyses were used to compare median survival for each clinical stage of disease. Multivariate analyses were performed using a Cox proportional hazards model. Results: 16,122 patients who underwent NAT and 16,869 patients who underwent surgery-first were included. Patients who underwent NAT tended to be younger, covered by private insurance, have a higher median income, greater comorbidities, higher clinical stage disease, and undergo a whipple. Additionally, NAT patients had a greater number of positive regional lymph nodes (9 vs. 6, respectively), although a similar number of nodes retrieved, and higher pathological stage disease. In patients with clinical stage I disease, adjuvant therapy was associated with improved median survival than NAT and surgery-alone (24.8, 18.5, 17.9 months, p < 0.0001, respectively). However, in stage II, adjuvant and NAT offered similar median survival, which was improved over surgery-alone (20.5, 20.1, and 12.4 months, p < 0.0001, respectively). In stage III, NAT had improved median survival than the other groups (19.6, 14.2, 8.6 months, p < 0.0001, respectively). In the multivariate survival analysis, patients who received NAT had a 22% lower hazard of mortality up to 5 years as compared to adjuvant therapy (p < 0.0001). Conclusions: Neoadjuvant therapy in advanced stage pancreatic cancer confers a survival benefit and may allow more patients to undergo surgery; NAT appears to offer similar survival as adjuvant therapy in early stage pancreatic cancer.

2017 ◽  
Vol 35 (5) ◽  
pp. 515-522 ◽  
Author(s):  
Ali A. Mokdad ◽  
Rebecca M. Minter ◽  
Hong Zhu ◽  
Mathew M. Augustine ◽  
Matthew R. Porembka ◽  
...  

Purpose To compare overall survival between patients who received neoadjuvant therapy (NAT) followed by resection and those who received upfront resection (UR)—as well as a subgroup of UR patients who also received adjuvant therapy—for early-stage resectable pancreatic adenocarcinoma. Patients and Methods Adult patients with resected, clinical stage I or II adenocarcinoma of the head of the pancreas were identified in the National Cancer Database from 2006 to 2012. Patients who underwent NAT followed by curative-intent resection were matched by propensity score with patients whose tumors were resected upfront. Overall survival was compared by using a Cox proportional hazards regression model. Early postoperative and oncologic outcomes were evaluated. Results We identified 15,237 patients with clinical stage I or II resected pancreatic head adenocarcinoma. From the NAT group, 2,005 patients (95%) were matched with 6,015 patients who underwent UR. The NAT group was associated with improved survival compared with UR (median survival, 26 months v 21 months, respectively; stratified log-rank P < .01; hazard ratio, 0.72; 95% CI, 0.68 to 0.78). Patients in the UR group had higher pathologic T stage (pT3 and T4: 86% v 73%; P < .01), higher positive lymph nodes (73% v 48%; P < .01), and higher positive resection margin (24% v 17%; P < .01). Compared with a subset of UR patients who received adjuvant therapy, NAT patients had a better survival (adjusted hazard ratio, 0.83; 95% CI, 0.73 to 0.89). Conclusion NAT followed by resection has a significant survival benefit compared with UR in early-stage, resected pancreatic head adenocarcinoma. These findings support the use of NAT, particularly as a patient selection tool, in the management of resectable pancreatic adenocarcinoma.


2020 ◽  
Vol 38 (4_suppl) ◽  
pp. 321-321
Author(s):  
Michael K. Turgeon ◽  
Adriana C. Gamboa ◽  
Manali Rupji ◽  
Rachel M. Lee ◽  
Jeffrey M. Switchenko ◽  
...  

321 Background: Upfront surgery is standard of care for stage I gastric cancer. Despite this, many clinicians administer preoperative therapy for clinical stage I disease with signet ring cell histology, given its aggressive biology. We aimed to assess the validity of this practice. Methods: The National Cancer Database (2004-2015) was reviewed for pts with non-metastatic signet ring cell gastric cancer who underwent treatment with surgery alone, perioperative chemotherapy, neoadjuvant therapy, or adjuvant therapy. Analysis was stratified by preoperative clinical stage and pathologic stage. Primary outcome was overall survival (OS). Results: Of 3000 pts, median age was 61 (IQR: 51-70). 34% were clinical stage I (n = 1018) of which 53% received surgery alone (n = 542), 5% perioperative chemotherapy (n = 47), 12% neoadjuvant therapy (n = 125), and 30% adjuvant therapy (n = 304). Median follow-up was 26 mos. For clinical stage I disease, surgery alone was associated with improved median OS (108 mos) when compared to perioperative chemotherapy (80 mos), neoadjuvant therapy (41 mos), or adjuvant therapy (73 mos, all p < 0.001). For pathologic stage I, surgery alone had equivalent survival to perioperative and adjuvant therapy (5-yr OS: 81 vs 82 vs 79%, p = 0.22). Concordance between clinical and pathologic stage I was 56%, specifically, 41% of clinical stage I pts were upstaged to pathologic stage II (44%) and stage III (56%). Adjuvant therapy for these pts was associated with improved median OS compared to pretreatment (perioperative chemotherapy / neoadjuvant therapy) for those upstaged to pathologic stage II (122 vs 37mos, p < 0.001) or stage III (40 vs 18mos, p < 0.001) disease. Conclusions: Our stage-stratified study demonstrates improved survival with upfront surgery for clinical stage I signet ring cell gastric cancer. Despite 41% of clinical stage I pts being upstaged to stage II or III on final pathology, adjuvant therapy offers a favorable rescue strategy, with improved outcomes compared to those treated preoperatively. Surgery alone also affords similar survival for pathologic stage I disease compared to multimodal therapy. This study challenges the intrinsic bias to over-treat stage I signet ring cell gastric cancer.


2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 349-349
Author(s):  
Heather Stuart ◽  
Caroline Ripat ◽  
Basem Azab ◽  
Danny Yakoub ◽  
Dido Franceschi ◽  
...  

349 Background: Clinical staging of patients with pancreatic cancer is essential to determine if neo-adjuvant treatment, surgery or palliative treatment is required. Patients with early stage disease often receive upfront surgery, where as patients with more advanced disease often receive neo-adjuvant therapy. Therefore the accuracy of clinical staging significantly influences management decisions. This study investigates the correlation between clinical and pathologic staging for patients with stage I pancreatic cancer. Methods: A retrospective review of patients with pancreatic cancer in National Cancer Data Base from 1998-2006 was preformed. The clinical stage of patients with presumed stage I disease was compared to the postoperative pathologic stage. Cox proportional hazard ratio model and regression analysis were used to determine factors associated with mortality and upstaging, respectively. Results: 1697 patients with clinical stage I pancreatic cancer were divided into two groups. Group 1 was comprised of patients who were stage I postoperatively and Group 2 was comprised of patients that were upstaged to either stage II, III or IV postoperatively. There were 704 (41%) in group 1 and 993 (59%) in group 2. Within group 2, 595 (60%) were stage II, 321 (32%) were stage III and 77 (8%) were stage IV. Patients that were upstaged after surgery had an increased risk of mortality (HR 1.414, p < 0.001), whereas patients that received adjuvant chemotherapy had a decreased risk of mortality (HR 0.799, p < 0.001). Compared to Grade 1 tumors, Grade 2 and 3 tumors on biopsy were most likely to be upstaged on final pathology (p < 0.001). Conclusions: Patients with stage I pancreatic cancer are often candidates for upfront surgery, however this study demonstrates that a large number are upstaged on postoperative staging. Recognizing this may lead clinicians to administer neo-adjuvant treatment in a greater number of patients with early stage disease in order to optimize survival.


2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 381-381
Author(s):  
Kenneth L Meredith ◽  
Jamie Huston ◽  
Anjan Jayantilal Patel ◽  
Richard H. Brown ◽  
Fadi Kayali ◽  
...  

381 Background: Neoadjuvant therapy (NT) for resectable pancreatic cancer continues to be debated. There is little data to demonstrate survival benefit over patients who were treated with up front surgery (UFS) vs NT. We sought to examine the impact of neoadjuvant chemotherapy (NCT), neoadjuvant chemoradiation (NCRT), and UFS on survival in pancreatic cancer patients. Methods: The NCDB was accessed to identify patients with pancreatic adenocarcinoma. Propensity score matching (PSM) was performed against age, tumor size, margin status, and institutional surgery volume. Patient characteristics (continuous and categorical variables) were compared using Mann-Whitney U, Kruskal Wallis and Pearson’s Chi-square test as appropriate. Survival analyses were performed using the Kaplan-Meier method. Multivariable cox proportional hazard models (MVA) were developed to identify predictors of survival. All statistical tests were two-sided and α < 0.05 was considered significant. Results: After PSM, 5,034 patients (UFS 2,517; NT 2,517: 1,143 NCT and 1,374 NCRT) were included in the analysis. There was no difference in age, tumor size, or grade among cohorts. The mean nodes positive were 1.6 ± 2.6 in NT and 2 ± 3.3 in UFS, p = 0.02. In the pre-matched cohort R0 resections were performed in 75.9% UFS, 82.9% NCRT, and 79.6% NCT, p < 0.001. The median and 5 year survival for NCT, NCRT and UFS was 28.6 months and 25.2%, 25.7 months and 22.2%, and 21.3 months and 21.7%, p < 0.001. Adjuvant therapy (chemotherapy (CT) or CRT) in the UFS did demonstrate a survival benefit 22.5 months vs 18.6 months, p < 0.001, however this did not benefit NCT or NCRT, p = 0.8 and p = 0.8 respectively. Additionally survival in the UFS with adjuvant therapy either CT or CRT was still decreased compared to either NCT or NCRT, p < 0.001 and p = 0.001 respectively. MVA demonstrated that age, T-stage, lymph nodes positive, R0 resection, grade, NCT and NCRT were predictors of survival. Conclusions: Neoadjuvant therapy improves survival in resectable pancreatic cancer patients. NCT and NCRT demonstrated survival benefit compared to UFS even with adjuvant therapy. Patients with resectable pancreatic cancer should be considered for neoadjuvant therapy.


2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 283-283
Author(s):  
Aabra Ahmed ◽  
Ryan W Walters ◽  
Timothy Dean Malouff ◽  
Mridula Krishnan ◽  
Javaneh Jabbari ◽  
...  

283 Background: Oldfield et al (2015) showed the conflicting evidence regarding the effect of adjuvant chemotherapy vs. chemoradiation in pancreatic cancer. Using patients identified by the National Cancer Database (NCDB), we are the largest study to compare survival in stage II pancreatic cancer patients who received adjuvant chemotherapy, chemoradiation, radiation, or no adjuvant therapy. Methods: We identified 65,091 patients with stage II pancreatic cancer who received surgery only or surgery in combination with chemotherapy, radiation, or chemoradiation. Between-therapy survival differences were estimated by the Kaplan-Meier method and associated log-rank tests; Tukey-Kramer adjusted p < .05 indicated statistical significance. Results: Patient characteristics were similar between groups; although, patients receiving chemoradiation were younger, had fewer comorbidities, and were more likely to have private insurance compared to all other therapy groups. Statistically significant survival differences were indicated between all therapy groups (all adjusted p< 0.05), as patients receiving chemoradiation had the longest survival followed by patients receiving chemotherapy, patients receiving radiation therapy, and patients receiving no adjuvant therapy (median survival = 22.5, 19.6, 16.9, 14.8 months, respectively). When examining other variables, patients living in an area with a median income < $43,000 were 14% more likely to die compared to patients in an area with a median income ≥ $63,000 (p < 0.001) and those with no comorbidities were 19% less likely to die than patients with two or more comorbidities (p < 0.001). Conclusions: Our data suggests that adjuvant therapy improves median and 3-year survival compared to no adjuvant therapy. Of all adjuvant therapies examined, adjuvant chemoradiation was associated with the greatest increase in survival, followed by adjuvant chemotherapy. Table 1: Median survival and survival rates of stage II pancreatic cancer [Table: see text]


2015 ◽  
Vol 33 (3_suppl) ◽  
pp. 156-156
Author(s):  
Eva Fuentes ◽  
Rima Ahmad ◽  
Theodore S. Hong ◽  
Jeffrey W. Clark ◽  
Eunice Lee Kwak ◽  
...  

156 Background: The effects of neoadjuvant chemotherapy (CTX) or chemoradiotherapy (CTX-RT) on postoperative complications following surgical resection of adenocarcinomas of the stomach and gastroesophageal junction (GEJ) have not been well studied. Methods: We identified 308 patients undergoing a surgery-first approach and 145 patients undergoing neoadjuvant therapy (CTX, n = 73 and CTX-RT, n = 72) followed by curative-intent surgeryfor adenocarcinomas of the stomach and GEJ from 1995-2014. We compared the baseline characteristics and the postoperative outcomes between the two groups using univariate and multivariate analyses. Results: Patients receiving neoadjuvant therapy were significantly more likely to be of younger median age (63 y vs. 71 y), have tumors of the GEJ (37% vs. 17%), to undergo esophagogastrectomy (51% vs. 26%) and D2 lymphadenectomy (39% vs. 27%), and to have more advanced stage disease than patients undergoing surgery first. There were no differences in overall 30-day morbidity or mortality rates between the neoadjuvant therapy and surgery-first groups, respectively (Table). However, patients undergoing surgery first were significantly more likely to have higher-grade complications than those undergoing neoadjuvant therapy. Conclusions: Despite having more advanced disease and undergoing higher-risk surgical procedures, patients with adenocarcinomas of the stomach or GEJ who receive neoadjuvant therapy prior to surgery are less likely to have major post-operative complications than patients treated with a surgery-first approach. Concerns about higher rates of post-operative complications should not deter the use of neoadjuvant therapy for gastroesophageal cancer. [Table: see text]


2020 ◽  
Vol 38 (4_suppl) ◽  
pp. 664-664
Author(s):  
Samit Kumar Datta ◽  
Geoffrey Bellini ◽  
Maharaj Singh ◽  
Nicholas Sich ◽  
James L. Weese ◽  
...  

664 Background: We are in the midst of a paradigm shift in the treatment of stage 1 pancreatic ductal adenocarcinoma (PDAC) from surgery first followed by adjuvant therapy (AT) to Neoadjuvant therapy (NAT) first followed by surgery and this is reflected in the current NCCN guidelines as well. Data comparing these two modalities are limited. AIM: To compare long term survival between Surgery + AT and NAT + Surgery in a large National Cancer Database for stage 1 PDAC. Methods: We identified patients with the NCDB with surgically resected AJCC clinical stage 1, 1A, and 1B PDAC between 2004-2016. Patients were stratified into two groups to assess outcomes: AT and NAT. Patients with incomplete survival and sequence of therapy were excluded. Baseline demographic data, 90-Day Mortality, Median survival, and Hazard ratios (HR) for survival was evaluated. Results: 9017 pts with Clinical stage 1, 1A, 1B PDAC between 2004-2016 were identified. Of these 7453 pts had surgery followed by AT; and 1564 pts had NAT followed by surgery. There was a statistically significant difference in age (66.0±9.9 years for AT vs. 64.7±9.78 years for NAT, p &lt; 0.001) but no difference in Charlson Comorbidity Scoring (p = 0.618) or sex (p = 0.073). 90-Day Mortality was 0.35% in the AT group compared to 0.83% in the NAT group (p = &lt; 0.001). Median survival was 28.5 (95% CI 26.5-29.9) months in the NAT group compared to 25.4 (95% CI 24.7-26.1) months in the AT group. With AT as the reference group for survival, there was a HR of 0.904 (95% CI 0.845-0.968, p = 0.003) for NAT. Conclusions: In this retrospective cohort of patients, NAT was associated with increased overall survival. However, NAT was associated with an increased 90 day mortality. A randomized, controlled trial is necessary to further support the superiority of NAT in the management of stage 1 PDAC.


Surgery ◽  
2019 ◽  
Vol 165 (2) ◽  
pp. 307-314 ◽  
Author(s):  
Katherine A. Baugh ◽  
Hop S. Tran Cao ◽  
George van Buren ◽  
Eric J. Silberfein ◽  
Cary Hsu ◽  
...  

BMC Cancer ◽  
2021 ◽  
Vol 21 (1) ◽  
Author(s):  
Dominic O’Connor ◽  
Malcolm Brown ◽  
Martin Eatock ◽  
Richard C. Turkington ◽  
Gillian Prue

Abstract Background Surgical resection remains the only curative treatment for pancreatic cancer and is associated with significant post-operative morbidity and mortality. Patients eligible for surgery, increasingly receive neo-adjuvant therapy before surgery or adjuvant therapy afterward, inherently exposing them to toxicity. As such, optimizing physical function through exercise during treatment remains imperative to optimize quality of life either before surgery or during rehabilitation. However, current exercise efficacy and prescription in pancreatic cancer is unknown. Therefore, this study aims to summarise the published literature on exercise studies conducted in patients with pancreatic cancer undergoing treatment with a focus on determining the current prescription and progression patterns being used in this population. Methods A systematic review of four databases identified studies evaluating the effects of exercise on aerobic fitness, muscle strength, physical function, body composition, fatigue and quality of life in participants with pancreatic cancer undergoing treatment, published up to 24 July 2020. Two reviewers independently reviewed and appraised the methodological quality of each study. Results Twelve studies with a total of 300 participants were included. Heterogeneity of the literature prevented meta-analysis. Exercise was associated with improvements in outcomes; however, study quality was variable with the majority of studies receiving a weak rating. Conclusions High quality evidence regarding the efficacy and prescription of exercise in pancreatic cancer is lacking. Well-designed trials, which have received feedback and input from key stakeholders prior to implementation, are required to examine the impact of exercise in pancreatic cancer on key cancer related health outcomes.


2015 ◽  
Vol 33 (1) ◽  
pp. 29-35 ◽  
Author(s):  
Chen Yuan ◽  
Douglas A. Rubinson ◽  
Zhi Rong Qian ◽  
Chen Wu ◽  
Peter Kraft ◽  
...  

Purpose Long-standing diabetes is a risk factor for pancreatic cancer, and recent-onset diabetes in the several years before diagnosis is a consequence of subclinical pancreatic malignancy. However, the impact of diabetes on survival is largely unknown. Patients and Methods We analyzed survival by diabetes status among 1,006 patients diagnosed from 1986 to 2010 from two prospective cohort studies: the Nurses' Health Study (NHS) and Health Professionals Follow-Up Study (HPFS). We validated our results among 386 patients diagnosed from 2004 to 2013 from a clinic-based case series at Dana-Farber Cancer Institute (DFCI). We estimated hazard ratios (HRs) for death using Cox proportional hazards models, with adjustment for age, sex, race/ethnicity, smoking, diagnosis year, and cancer stage. Results In NHS and HPFS, HR for death was 1.40 (95% CI, 1.15 to 1.69) for patients with long-term diabetes (> 4 years) compared with those without diabetes (P < .001), with median survival times of 3 months for long-term diabetics and 5 months for nondiabetics. Adjustment for a propensity score to reduce confounding by comorbidities did not change the results. Among DFCI patient cases, HR for death was 1.53 (95% CI, 1.07 to 2.20) for those with long-term diabetes compared with those without diabetes (P = .02), with median survival times of 9 months for long-term diabetics and 13 months for nondiabetics. Compared with nondiabetics, survival times were shorter for long-term diabetics who used oral hypoglycemics or insulin. We observed no statistically significant association of recent-onset diabetes (< 4 years) with survival. Conclusion Long-standing diabetes was associated with statistically significantly decreased survival among patients with pancreatic cancer enrolled onto three longitudinal studies.


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