Combined therapy for rectal cancer in the elderly

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 14504-14504 ◽  
Author(s):  
G. C. Bohac ◽  
K. Hartshorn ◽  
D. Cheng

14504 Background: Neoadjuvant or Adjuvant Chemoradiotherapy (CRT) plus surgery is the standard of care for treatment of Stage II/Stage III rectal cancer. Previous studies of practice patterns have evaluated SEER data using single dose chemotherapy as a surrogate for having ever been treated. No study to date has evaluated the use of CRT along with surgery to determine the ability of elderly patients with rectal cancer to complete prescribed therapy. Methods: A retrospective study of all patients treated for Stage II/III rectal cancer identified by Tumor Registrar from January 1, 1987 to June 1, 2006 at the Boston VAMC and Boston Medical Center were analyzed. Data was extracted from computerized records and paper charts. Statistical analysis was performed with SAS software. The primary endpoint was to determine if younger (<70 yr) and older (>=70yr) patients were equally likely to complete CRT and surgery without having a dose of chemotherapy or radiation reduced, held, or delayed. Secondary endpoints were to determine if older and younger age groups were equally likely to receive CRT and a multivariate analysis of factors (age, having received neoadjuvant therapy, number of comorbidities, stage of tumor) had an effect on these outcomes. Results: A total of 266 patients were identified and included in the study. The likelihood of completing CRT and surgery without a dose being held, delayed or reduced was statistically similar among patients age 70 and older (16.1%) as among younger patients (23.9%) (Chi-square 2.16 p=0.1414). However, older patients were far less likely (58.24%) than younger patients (76%) to receive CRT (Chi-square 8.79 p=0.003). A multivariate analysis of factors associated with completion of CRT without a dose being held, delayed or reduced identified only the number of comorbidities (one or more) OR=0.383 (95% CI 0.186–0.790) as statistically significant. In addition, multivariate analysis of factors associated with receiving CRT identified having received neoadjuvant therapy OR=5.397 (95% CI 2.303–12.60) and age >=70 OR=0.424 ( 95% CI 0.201–0.898) as statistically signficant. Conclusion: Elderly patients with rectal cancer are less likely to be prescribed CRT than younger patients. However, elderly patients who are prescribed to receive CRT appear to be able to tolerate the therapy as well as younger patients. No significant financial relationships to disclose.

2017 ◽  
Vol 35 (4_suppl) ◽  
pp. 686-686
Author(s):  
Alex Richard Coffman ◽  
Dustin Boothe ◽  
Jonathan Evans Frandsen ◽  
Molly Gross ◽  
Thomas Bartley Pickron ◽  
...  

686 Background: Neoadjuvant chemoradiotherapy (NCRT) is generally accepted as the optimal treatment strategy compared to adjuvant chemoradiotherapy (ACRT) for locally advanced rectal cancer due to improvement in local control and reduced toxicity. However, NCRT has not been shown to improve overall survival (OS). We investigated the effect of NCRT versus ACRT on OS as well as the impact of demographic factors and clinical stage for the selection of each treatment approach utilizing the National Cancer Data Base. Methods: Adult patients with stage II and stage III adenocarcinoma of the rectum diagnosed from 2004-2013 were included. Chi-square analysis was used to compare demographic variables and clinical stage between the NCRT and ACRT treatment groups. Univariate and multivariate logistic regression modeling was used to identify factors predictive of each treatment strategy. Kaplan Meier and log-rank analysis along with propensity score matching was performed to determine the effect on OS. Results: A total of 20,262 patients were identified: 17,737 (87.5%) received NCRT and 2,525 (12.5%) received ACRT. Utilization of NCRT increased over the study period (p < 0.01). Factors associated with receipt of NCRT on multivariate analysis include: treatment at an academic institution (OR 0.76, 95% CI 0.68-0.85), income greater than $46,000 (OR 0.79, 95% CI 0.67-0.92), and living greater than 50 miles from a treatment facility. Factors associated with receipt of ACRT on multivariate analysis include: female sex (OR 1.12, 95% CI 1.01-1.24), Charlson comorbidity index of 1 (OR 1.18, 95% CI 1.04-1.34), and radiotherapy dose greater than 5040 centigray (OR 1.76, 95% CI 1.56-1.98). Compared to ACRT, NCRT was associated with a decreased risk of death on multivariate analysis (HR 0.91, 95% CI 0.84-1.00), which persisted after propensity score analysis. Conclusions: The use of NCRT for locally advanced rectal cancer is increasing and is associated with an OS benefit compared to ACRT.


2019 ◽  
Vol 37 (15_suppl) ◽  
pp. e15163-e15163
Author(s):  
Weiwei Chen ◽  
Wenling Wang

e15163 Background: Current recommendations for adjuvant chemotherapy in rectal cancer are based on the studies in colon cancer. However, it is now known that rectal cancer differs from colon cancer significantly regarding clinical course and biology. No RCTs in the TME era have evaluated the value of postoperative chemotherapy and are unlikely to be performed as neoadjuvant treatment has become a “gold standard” approach. However, we found that not all patients with locally advanced rectal cancer underwent neoadjuvant chemoradiotherapy before TME in real-world clinical practice in China. Whether the number of adjuvant chemotherapy cycles is significantly related to the prognosis of these patients deserves further study. Methods: A total of 246 patients with stage II-III rectal cancer from January 2013 to April 2018 were enrolled. All patients underwent surgery and had not received neoadjuvant therapy. The survival curve was drawn by the Kaplan-Meier method, and the log-rank method was used for statistical analysis. The Cox proportional hazard model was used for multivariate analysis to determine the independent prognostic factors. Then, MFP(Multiple Fractional Polynominal) and stepwiseAIC were used for variable selection. The R software was used to establish the nomogram. The bootstrap method was employed to internal verification. Concordance index(C-index) was applied to evaluate the predictive power of nomogram. Calibration curves were drawn to compare the 3-year overall survival rate predicted by nomogram and that of actual observation. Results: 87.8% of patients received adjuvant chemotherapy including oxaliplatin combined with fluorouracil or capecitabine. Univariate and multivariate analysis showed that the number of adjuvant chemotherapy cycles was independent prognostic factors. Patients who received more than 5 cycles of chemotherapy (HR = 0.09, 95%CI(0.01,0.80)) had a significantly better overall survival than patients with less than 5 cycles (HR = 0.33,95%CI(0.12,0.89)) or no chemotherapy (p < 0.05).Through MFP and the stepwiseAIC screening, a nomogram was established based on CEA, PLR, N, and the number of chemotherapy cycles, and the C-index of the model was 0.86. Conclusions: The number of adjuvant chemotherapy cycles is an independent prognostic factor in stage II-III rectal cancer patients without neoadjuvant therapy. Moreover, nomogram incorporated the number of chemotherapy cycles was accurate and visible.


2019 ◽  
Vol 37 (4_suppl) ◽  
pp. 678-678 ◽  
Author(s):  
Sharlyn Kang ◽  
Kate Jessica Wilkinson ◽  
Daniel Brungs ◽  
Wei Chua ◽  
Weng Leong Ng ◽  
...  

678 Background: There is limited information on outcomes in elderly patients with rectal cancer as they are often excluded from clinical trials. This study aimed to assess treatment patterns and outcomes in these patients. Methods: We utilised data from electronic records to identify patients aged ≥ 70 years with a histological diagnosis of rectal cancer from 2006-2015, treated in the South Western Sydney and Illawarra Shoalhaven Local Health Districts, Australia. Treatment modalities, recurrence and survival data were analysed. Results: We identified 942 patients with rectal cancer, with median follow-up of 3.4 years. 393 patients (42%) were aged ≥ 70 years. Median age of this cohort was 77 years (range 70–96 years). Elderly patients were more likely to present with locoregional disease (stage I-III, 83% vs. 75%) and more likely to receive palliative treatment only (21% vs. 16%, p = 0.0005). Of 704 patients who received treatment with curative intent, 300 (43%) were ≥ 70 years. Although clinicopathological features were similar between elderly and young patients, patients ≥ 70 years were more likely to be treated with surgery alone (56% vs. 28%, p < 0.0001), less likely to receive neoadjuvant (25% vs. 44%, p < 0.0001) or adjuvant treatments (29% vs. 55%, p < 0.0001), or be discussed in a multidisciplinary meeting (51% vs. 61%, p = 0.001). Compared to younger patients, elderly patients had a significantly poorer overall survival (HR 2.9, 95% CI 2.2 – 3.7, p < 0.0001). There were no significant differences in cancer specific survival (HR 1.4, 95% CI 0.98 – 2.0, p = 0.06) or relapse free survival (HR 0.92, 95% CI 0.7 – 1.2, p = 0.60). Conclusions: Although more elderly patients were treated with palliative intent compared to younger patients, the majority of elderly rectal cancer patients were still treated with curative intent. Most had surgery alone. Uptake of neoadjuvant and adjuvant therapy, as well as multidisciplinary involvement, was lower. Elderly patients had similar cancer-specific outcomes compared to younger patients, supporting curative intent treatment in these patients. Further analyses are underway to identify subgroups in the elderly population who benefit from trimodality therapy, and potential differences in their disease biology.


2016 ◽  
Vol 70 (7) ◽  
pp. 584-592 ◽  
Author(s):  
Zhaomin Xu ◽  
Mariana E Berho ◽  
Adan Z Becerra ◽  
Christopher T Aquina ◽  
Bradley J Hensley ◽  
...  

AimsLymph node yield (LNY) is used as a marker of adequate oncological resection. The American Joint Committee on Cancer (AJCC) currently recommends that at least 12 nodes are necessary to confirm node-negative disease for rectal cancer. A LNY of 12 is not always achieved, particularly in patients who have undergone neoadjuvant treatment. This study attempts to examine factors associated with LNY and its prognostic impact following neoadjuvant chemoradiation in rectal cancer.MethodsThe 2006–2011 National Cancer Data Base was queried for patients with clinical stage I–III rectal cancer who underwent a proctectomy. Suboptimal LNY was defined as <12 lymph nodes examined. A mixed-effects multinomial logistic regression model was used to identify independent factors associated with LNY. Mixed-effects Cox proportional hazards models were used to estimate the adjusted effect of LNY on 5-year overall survival.Results25 447 patients met inclusion criteria. Overall, 62% of the cohort received neoadjuvant chemoradiation and 32% had suboptimal LNY. The median LNY for patients who received neoadjuvant therapy was 13 (IQR: 9–18) and for patients who did not receive neoadjuvant therapy was 15 (IQR: 12–21). After risk adjustment, there was a 3.5-fold difference in the rate of suboptimal LNY among individual hospitals (27%–95%). Suboptimal LNY was independently associated with an 18% increased hazard of death among patients who did not receive neoadjuvant treatment and a 20% increased hazard of death among those who did receive neoadjuvant treatment when controlled for adjuvant treatment, staging, proximal/distal margins and other patient factors.ConclusionsSuboptimal LNY is independently associated with worse overall survival regardless of neoadjuvant therapy, pathological staging and patient factors in rectal cancer. This finding underlies the importance and challenge of an optimal lymph node evaluation for prognostication, especially for patients receiving neoadjuvant therapy.


2011 ◽  
Vol 29 (4_suppl) ◽  
pp. 78-78
Author(s):  
R. P. Merkow ◽  
K. Y. Bilimoria ◽  
M. McCarter ◽  
A. Stewart ◽  
W. B. Chow ◽  
...  

78 Background: Consensus guidelines recommend neoadjuvant chemo- or chemoradiation therapy as the preferred treatment for locally advanced esophageal adenocarcinoma; however, it is unknown if this recommendation has been widely adopted in the U.S. Our objective was to examine esophageal cancer multimodal therapy and identify factors associated with the use of neoadjuvant therapy. Methods: From the National Cancer Data Base, patients with middle third, lower third and GE junction (GEJ) adenocarcinomas were identified. Patients who were clinical stage I-III and underwent surgical resection were included. Separate logistic regression models were developed to identify predictors of neoadjuvant therapy utilization and outcomes. Results: From 1998 to 2007, 8,051 patients underwent surgical resection for esophageal cancer: 16.3% stage I, 45.0% stage II and 38.7% stage III. For stage II/III tumors, neoadjuvant use increased (49.0% to 77.8%, p<0.001). After adjustment, factors associated with underuse of neoadjuvant therapy in stage II/III patients were older age, Black or Hispanic ethnicity, more severe comorbidities, tumor location (GEJ and middle vs. lower third), tumor size ≥ 2cm, stage II (vs. III) and geographic region. Stage II/III patients not receiving neoadjuvant had an over two fold increased risk of positive lymph nodes (OR 2.14. 95% CI 1.79 – 2.55, p<0.001). In addition, the positive surgical margin rate increased almost three fold (OR 2.80 95% CI 2.17-3.62, p<0.001) but 30-day postoperative mortality risk was not significantly affected (OR 1.50 95% CI 0.94-2.39; p=0.090). For stage I patients, neoadjuvant therapy decreased over time (38.0% to 11.4%, p<0.001). The overuse of neoadjuvant therapy was associated with higher tumor grade, larger tumor size, and low surgical case volume (all p<0.05). Conclusions: The adoption of neoadjuvant therapy has increased in the past decade; however, opportunity exists to improve guideline treatment for locally advanced esophageal cancer. Registry-based feedback to individual hospitals, such as benchmark comparison tools, could help institutions provide care in concordance with national guidelines. No significant financial relationships to disclose.


2017 ◽  
Vol 35 (15_suppl) ◽  
pp. 3550-3550
Author(s):  
Jean-Louis Legoux ◽  
Thomas Aparicio ◽  
Emilie Maillard ◽  
Jean Marc Phelip ◽  
Jean-Louis Jouve ◽  
...  

3550 Background: In the early 2000s, classic LV5FU2 (C) (folinic acid, 5FU bolus, then 5FU infusion on D1 and D2) was replaced with simplified LV5FU2 (S) (folinic acid and 5FU bolus on D1 only), considered as effective and less toxic. No trial proved this assertion. The LV5FU2 companion in the FOLFIRI or FOLFOX regimen was C or S. The FFCD 2001-02 study compared in a 2 x 2 factorial design, in not-pretreated elderly patients (75+) with metastatic colorectal cancer, C or S, with or without irinotecan. No significant differences in PFS and OS were observed in the comparison with or without irinotecan. The median OS was 15.2 months in C versus 11.4 months in S, HR = 0.71 (0.55–0.92) and objective response rate was 37.1% in C vs S 25.6% in S, p = 0.004. The aim of this study was to present the factors associated with these differences. Methods: Prognostic factors associated with OS were studied using a Cox model. The multivariate analysis used the significantly different items from the univariate analysis and the differences observed at the inclusion. For each of these items, a subgroup analysis was performed. The second- and third-line treatments were analysed. Results: The 282 patients from the intent-to-treat study were included in the model. In OS, the prognostic factors were C versus S, number of metastatic sites, alkaline phosphatases (AP) and CEA. The interaction test in each subgroup for OS was not significant but C was significantly better in the following subgroup: age > 80 years, male, Karnofsky 100%, 1-2 Charlson index, AP ≤ 2N, leucocyte count > 11,000, CEA > 2N, CA 19-9 ≤2N. No differences were observed in the NCI toxicities but 130 serious adverse events in S versus 102 in C. A second-line was used for 55% patients in C, 46% in S, 81% of them with oxaliplatin or irinotecan in C, 76% after S. The third-line administration (20%) and targeted therapy (15%) were similar in C and S. Conclusions: C-LV5FU2 was superior both in subgroups with better and lower prognostics and this difference cannot be explained by an imbalance between the populations. The toxicity was not higher and a second-line was more often possible after C. The switch from C to S without scientific proof was perhaps a mistake in our practices. Clinical trial information: NCT00303771.


2019 ◽  
Vol 37 (4_suppl) ◽  
pp. 692-692
Author(s):  
Rosa Maria Jimenez-Rodriguez ◽  
Felipe Fernando Quezada-Diaz ◽  
Irbaz Hameed ◽  
Sujata Patil ◽  
Jesse Joshua Smith ◽  
...  

692 Background: Retrospective case series suggest that watch-and-wait (WW) is a safe alternative to total mesorectal excision (TME) in selected patients with a clinical complete response (cCR) after chemoradiotherapy (CRT). Because treatment strategies vary widely and total numbers of patients treated at different institutions have not been reported, the proportion of rectal cancer patients who can potentially benefit from WW is not known. Here, we report the results of a treatment strategy incorporating WW in a cohort of rectal cancer patients treated with total neoadjuvant therapy (TNT). Methods: Consecutive patients with stage II/III (MRI staging) rectal adenocarcinoma treated with TNT from 2012 to 2017 by a single surgeon were included. TNT consisted of mFOLFOX6 (8 cycles) or CapeOX (5 cycles) either before or after CRT (5600 cGy in 28 fractions with sensitizing fluorouracil or capecitabine). Tumor response was assessed with a digital rectal exam, endoscopy, and MRI according to predefined criteria. Patients with a cCR were offered WW, and patients with residual tumor were offered TME. WW and TME patients were compared based on intention to treat, using the chi-square or rank sum test. Relapse-free survival (RFS) was evaluated by Kaplan-Meier analysis. Results: A total of 109 patients were identified. One patient died during CRT. Of the 108 patients, 64 (59%) had an incomplete clinical response; 4 of the 64 patients declined surgery or had local excision, and 60 underwent TME. The remaining 44 patients (41%) had a cCR and underwent WW. On average, patients in the WW group were older and had smaller, more distal tumors. Median radiation dose, number of chemotherapy cycles, number ofadverse events, or length of follow-up (28 months) did not differ between the TME and WW groups. Five (11%) of the 44 WW patients had local tumor regrowth, at a median of 14 (4–25) months after TNT; 2 of the 5 also had distant metastasis. Six (10%) of the 60 TME patients had a pathological complete response. RFS did not differ between the TME and WW groups (log rank P= 0.09). Conclusions: Approximately 40% of patients with stage II/III rectal cancer treated with TNT achieve a clinical complete response and can benefit from a WW approach with the aim of preserving the rectum.


2014 ◽  
Vol 99 (5) ◽  
pp. 523-527 ◽  
Author(s):  
Silvestro Canonico ◽  
Gianluca Pellino ◽  
Domenico Pameggiani ◽  
Guido Sciaudone ◽  
Giuseppe Candilio ◽  
...  

Abstract The aim of this study was to compare disease features and surgical complications of patients undergoing surgery under or over 65 years of age. We performed a retrospective review of patients undergoing thyroidectomy or lobectomy from January 1990 through January 2012 in our Institution. Patients aged over 65 years of age were compared with younger patients on a 1:1 ratio. A total of 2012 patients were operated on during the study period. Two-hundred patients aged &gt; 65 years were compared with 200 patients &lt; 65 years old. In this series, no significant differences were observed concerning surgical complications between groups. At multivariate analysis, masses causing compression, extended approaches and malignant lesions were significant predictors of complications, irrespective of age. Due to longer life expectancy, elderly patients are being operated on more frequently. Safety of thyroid surgery in this population is still debated. We observed no difference in surgical outcomes between elderly and younger patients; however, some features of the diseases impair survival in the former. Age did not increase likeliness of worse outcomes in patients receiving thyroid surgery.


2006 ◽  
Vol 42 (17) ◽  
pp. 3015-3021 ◽  
Author(s):  
M.A. Shahir ◽  
V.E.P.P. Lemmens ◽  
L.V. van de Poll-Franse ◽  
A.C. Voogd ◽  
H. Martijn ◽  
...  

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