Location of colon cancer (right-sided [RC] versus left-sided [LC]) as a predictor of benefit from cetuximab (CET): NCIC CTG CO.17.

2013 ◽  
Vol 31 (15_suppl) ◽  
pp. 3528-3528 ◽  
Author(s):  
Stephanie Yasmin Brule ◽  
Derek J. Jonker ◽  
Christos Stelios Karapetis ◽  
Christopher J. O'Callaghan ◽  
Malcolm J. Moore ◽  
...  

3528 Background: RC and LC differ with respect to biology, pathology, and epidemiology. Further, recent SEER data suggests a mortality difference between RC and LC that varies by stage: stage II and III RC having lower and higher mortality, respectively. We examined if the primary tumour site can also predict for outcome in pre-treated, chemotherapy refractory, metastatic colon cancer (MCC). We compared RC vs. LC as a predictor for efficacy of EGFR inhibition with CET. Methods: Using CO.17 (CET vs. BSC), we coded the primary tumour site for 399 pts as RC (cecum to transverse colon) or LC (splenic flexure to rectosigmoid). Fisher’s exact test assessed the association between site of cancer and baseline characteristics. Univariate and multivariate analyses of overall survival (OS) and progression free survival (PFS) by site of cancer were performed using Cox regression models. Results: Pts with RC (150/399) had more poorly differentiated tumours, mutant KRAS status, and peritoneal rather than liver and lung metastases, and they more often entered the study less than two years after initial diagnosis. Among pts receiving BSC, tumour location (RC vs. LC) was not prognostic for PFS (HR 1.07 [0.79, 1.44], p=0.67) or OS (HR 0.96 [0.70, 1.31], p=0.78). Among pts with KRAS wild type tumour status, site of cancer was a predictor of benefit from CET, with much greater PFS observed for LC (interaction p=0.002). Conclusions: In refractory MCC, tumour location within the colon (RC vs. LC) is not a prognostic factor, but is a strong predictor of PFS benefit from CET therapy. Additional research is needed to understand the molecular differences between RC and LC and their interaction with EGFR inhibition. [Table: see text]

2018 ◽  
Vol 25 (5) ◽  
Author(s):  
C. S. Kim ◽  
M. B. Hannouf ◽  
S. Sarma ◽  
G. B. Rodrigues ◽  
P. K. Rogan ◽  
...  

IntroductionPatients with cancer of unknown primary (cup) have pathologically confirmed metastatic tumours with unidentifiable primary tumours. Currently, very little is known about the relationship between the treatment of patients with cup and their survival outcomes. Thus, we compared oncologic treatment and survival outcomes for patients in Ontario with cup against those for a cohort of patients with metastatic cancer of known primary site.Methods Using the Ontario Cancer Registry and the Same-Day Surgery and Discharge Abstract databases maintained by the Canadian Institute for Health Information, we identified all Ontario patients diagnosed with metastatic cancer between 1 January 2000 and 31 December 2005. Ontario Health Insurance Plan treatment records were linked to identify codes for surgery, chemotherapy, or therapeutic radiation related to oncology. Multivariable Cox regression models were constructed, adjusting for histology, age, sex, and comorbidities.Results In 45,347 patients (96.3%), the primary tumour site was identifiable, and in 1743 patients (3.7%), cup was diagnosed. Among the main tumour sites, cup ranked as the 6th largest. The mean Charlson score was significantly higher (p < 0.0001) in patients with cup (1.88) than in those with a known primary (1.42). Overall median survival was 1.9 months for patients with cup compared with 11.9 months for all patients with a known-primary cancer. Receipt of treatment was more likely for patients with a known primary site (n = 35,012, 77.2%) than for those with cup (n = 891, 51.1%). Among patients with a known primary site, median survival was significantly higher for treated than for untreated patients (19.0 months vs. 2.2 months, p < 0.0001). Among patients with cup, median survival was also higher for treated than for untreated patients (3.6 months vs. 1.1 months, p < 0.0001).Conclusions In Ontario, patients with cup experience significantly lower survival than do patients with metastatic cancer of a known primary site. Treatment is associated with significantly increased survival both for patients with cup and for those with metastatic cancer of a known primary site.


2017 ◽  
Vol 35 (7_suppl) ◽  
pp. 47-47
Author(s):  
Jonna Berntsson ◽  
Maria Christina Svensson ◽  
Karin Leandersson ◽  
Bjorn Nodin ◽  
Agnieszka Krzyzanowska ◽  
...  

47 Background: Several studies report dense infiltration of tumour-infiltrating T cells and natural killer cells to be associated with an improved prognosis in colorectal cancer (CRC); but whether these associations differ by tumour location remain unknown. This study investigated the prognostic impact of immune cell infiltration in CRC, with particular reference to the anatomical subsite of the primary tumour. Methods: Immunohistochemical expression of CD3, CD8, FoxP3, and CD56 was analysed in tissue microarrays with tumours from 557 incident CRC cases from a prospective population-based cohort. Kaplan-Meier and Cox regression analyses were applied to determine the impact of biomarker expression on 5-year overall survival (OS), in the entire cohort and in subgroup analysis of right colon, left colon, and rectum. Results: In the entire cohort, dense infiltration of all the investigated immune cells correlated significantly with an improved 5-year OS in both univariable and multivariable analysis, adjusted for age, TNM stage, differentiation grade, and vascular invasion. Dense infiltration of CD3+ and CD8+ cells were independent favourable prognostic factors for tumours in the right colon (hazard ratio [HR] = 0.53, 95 % confidence interval [CI] 0.29-0.95 and HR = 0.35, 95% CI 0.19-0.65, respectively), but not in the left colon or rectum. When microsatellite instability status was included in the adjusted model, only CD8+ cells remained an independent favourable prognostic factor in right-sided tumours. Dense infiltration of FoxP3+ cells was an independent favourable prognostic factor for tumours in the rectum (HR = 0.54, 95% CI 0.30-0.99), but not in the right or left colon. Infiltration of CD56+ cells did not carry any independent prognostic impact after stratifying for primary tumour site. Conclusions: The results from this study demonstrate that the prognostic impact of certain T cell subsets in CRC differs by primary tumour site, being most evident in right-sided tumours. These findings indicate that tumour location may be an important factor to take into consideration in therapeutic decisions, including eligibility for immunotherapy.


Author(s):  
Franz Xaver Singhartinger ◽  
Martin Varga ◽  
Tarkan Jäger ◽  
Adam Dinnewitzer ◽  
Oliver Koch ◽  
...  

Abstract Background Colorectal cancer (CRC) leads to metastatic disease in approximately 30% of patients. In patients with newly diagnosed CRC with both liver and lung metastases, curative resection is rarely possible. The aim of this study is to evaluate the overall (OS) and relapse-free survival (RFS) rates of these patients after resection with curative intent. Methods This study is a retrospective analysis of colorectal cancer patients (n=8, median age 54.3 years) with simultaneous liver and lung metastasis undergoing resection with curative intent between May 1st, 2002, to December 31st, 2016, at our institution. Results Colon was the primary tumour site in 2 patients and rectum in 6 patients. The median number of liver and lung metastases was 3 and 2, respectively. Patients received various treatment sequences individualized on tumour disease burden. R0 resection was achieved after all but one procedure. Two severe Clavien-Dindo grade IIIb complications were present. Median hospital stay was 9 (3–24) days per procedure. Tumour relapse was observed in all patients with median RFS of 9 (3–28) months and median OS of 40 (17–52) months. In 4 cases, where repeated resection of recurrent metastases (3 liver and 1 lung) was possible, the median OS was 43 months. Conclusion Our data suggests that patients seem to benefit from resection with curative intent, with tendency to prolonged OS and with acceptable complication rate. Tumour recurrence occurred in all patients. Repeated resection was beneficial and led to further prolonged OS.


2021 ◽  
pp. bmjspcare-2021-003321
Author(s):  
Livia Costa De Oliveira ◽  
Emanuelly Varea Maria Wiegert ◽  
Lara Azevedo dos Santos ◽  
Larissa Calixto-Lima

ObjectivesWe aimed (1) to assess the nutritional status (NS) using different methods, according to the primary tumour site and (2) to evaluate the performance of these methods in patients with incurable cancer from a reference centre in Brazil.MethodsCross-sectional analysis of data from patients admitted to the palliative care unit of a reference cancer centre in Brazil, between July 2016 and March 2020. The primary tumour site was the independent variable and the NS using different methods were the dependent variables. Logistic regressions were performed.ResultsA total of 2,144 patients were included in the study. The most common primary tumour site was the upper gastrointestinal (GI) tract (18.0%), followed by gynaecological (17.6%) and head and neck (HN) (13.5%). Our results showed that patients with tumours of the upper GI tract followed by HN presented significantly higher risk of worse NS. In contrast, breast tumours, bone and connective tissues and melanoma presented inverse association. The gynaecological cancer was variably associated with nutritional impairment, according to the assessment method.ConclusionsPatients with incurable cancer present high prevalence of NS impairment, depending on the tumour site, shown to be elevated in patients with tumour in the upper GI tract.


2013 ◽  
pp. n/a-n/a ◽  
Author(s):  
Peng Gao ◽  
Yong-xi Song ◽  
Ying-ying Xu ◽  
Zhe Sun ◽  
Jing-xu Sun ◽  
...  

2018 ◽  
Vol 29 ◽  
pp. viii177-viii178
Author(s):  
K.L. van Rooijen ◽  
S.A. Kurk ◽  
D.E.W. van der Kruijssen ◽  
S. Elias ◽  
A.M. May ◽  
...  

2009 ◽  
Vol 27 (15_suppl) ◽  
pp. 3045-3045
Author(s):  
P. Correale ◽  
P. Tagliaferri ◽  
M. T. Del Vecchio ◽  
C. Remondo ◽  
C. Migali ◽  
...  

3045 Background: GOLFIG is a novel chemoimmunotherapy regimen, combining gemcitabine, oxaliplatin, 5-FU/FA with immunoadjuvant GM-CSF and aldesleukine, which resulted safe and very active in colon cancer patients. Antitumor activity and immunity feedback to the treatment resulted strictly correlated. The best outcome was observed in patients showing autoimmunity signs, rise in central-memory-T cells, and decline in peripheral and tumor infiltrating immuno-regulatory T (Treg) cells. On these bases, we investigated a possible correlation between Treg tumor infiltration at diagnosis and clinical outcome of these patients. Methods: An immunohistochemistry study was carried out to quantify the infiltration of Treg (FoxP3+) lymphocytes in tumor samples of 41 colon cancer patients who received FOLFOX-4 chemotherapy or GOLFIG chemo-immunotherapy as enrolled in the ongoing phase III GOLFIG-2 trial. Treg tumor infiltration score (range 0 to 5) was then correlated with survival (OS) and time to progression (TTP). Results: A higher Treg tumor infiltration score (score 3–5) was associated to a longer OS and TTP in the whole patient population (high vs low score; TTP=18 vs 9.4 months; p=0.002; OS=55.7 vs 28.9 months; p=0.001); however, those patients with high tumor infiltration of FoxP3+-T cells who received GOLFIG regimen showed the most favorable outcome (high vs low score; TTP=20.8 vs 11.6 months; p=0.04; OS=68.1 vs 41 months; p=0.04). A Cox regression model demonstrated in these patients that a high Treg tumor infiltration score is an independent variable of long survival and prolonged TTP. Conclusions: Our results suggest that GOLFIG chemoimmunotherapy is highly effective in colon carcinoma patients with high FoxP3+ infiltration score and that Treg-tumor infiltration score may be a favorable prognostic marker in colon cancer patients. No significant financial relationships to disclose.


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