scholarly journals Metastatic Colorectal Cancer Clinical and Genetic Prognostic and Predictive Factors. Summary of the Doctoral Thesis

Author(s):  
◽  
Elīna Sīviņa
2020 ◽  
Vol 27 (17) ◽  
pp. 2779-2791 ◽  
Author(s):  
Anna Nappi ◽  
Guglielmo Nasti ◽  
Carmela Romano ◽  
Massimiliano Berretta ◽  
Alessandro Ottaiano

: Colorectal cancer represents the third most frequently occurring cancer worldwide. In the last decade, the survival of patients affected by metastatic colorectal cancer (mCRC) has improved through the introduction of biological drugs. However, in this new and dynamic therapeutic context, research about prognostic and predictive factors is important to guide the oncologists to effective therapies as well as to improve the understanding of colorectal cancer biology. Their identification is an intensive area of research and our future goal will be to depict tumour-specific "molecular signatures" in order to predict the clinical course of the disease and the best treatments. : In this report, we describe clinical, pathological and molecular biomarkers that can play a role as prognostic or predictive factors in mCRC.


2016 ◽  
Vol 34 (15_suppl) ◽  
pp. e15025-e15025
Author(s):  
Shelly Sud ◽  
Christopher J. O'Callaghan ◽  
Christos Stelios Karapetis ◽  
Caleb Jonker ◽  
Timothy Jay Price ◽  
...  

2021 ◽  
Author(s):  
George Kafatos ◽  
Victoria Banks ◽  
Peter Burdon ◽  
David Neasham ◽  
Kimberly A Lowe ◽  
...  

Background: Advances in therapies for patients with metastatic colorectal cancer (mCRC) and improved understanding of prognostic and predictive factors have impacted treatment decisions. Materials & methods: This study used a large oncology database to investigate patterns of monoclonal antibody (mAb) plus chemotherapy treatment in France, Germany, Italy, Spain and the UK in mCRC patients treated in first line in 2018. Results: Anti-EGFR mAbs were most often administered to patients with RAS wild-type mCRC and those with left-sided tumors, while anti-VEGF mAbs were preferred in RAS mutant and right-sided tumors. Adopted treatment strategies differed between countries, largely due to reimbursement. Conclusion: Biomarker status and primary tumor location steered treatment decisions in first line. Adopted treatment strategies differed between participating countries.


2012 ◽  
Vol 30 (15_suppl) ◽  
pp. e14007-e14007
Author(s):  
Stefano Chong Hun Kim

e14007 Background: Bevacizumab with FOLFIRI or FOLFOX regimen is the standard of care in metastatic colorectal cancer (mCRC). As second line regimen after FOLFOX, FOLFIRI-3 has showed a significantly better PFS in comparison with other irinotecan-based regimen. We therefore evaluated the safety, efficacy and possible predictive factors for FOLFIRI-3 in combination with bevacizumab as initial treatment for mCRC. Secondarily, we evaluated the feasibility of Capecitabine-Bevacizumab maintenance. Methods: We conducted a phase II, multicentric trial of FOLFIRI-3 regimen (irinotecan 100mg/m2 day 1, LV 200mg/m2 day 1, 5-FU bolus 400 mg/m2 day 1 followed by a 36-h 5-FU continuous infusion 2400 mg/m2, irinotecan 100mg/m2 day 3) with bevacizumab (5mg/kg day 1) repeated every 2 weeks, as first-line treatment in mCRC for 6 months, followed by maintenance treatment with bevacizumab (7.5 mg/kg day 1) and capecitabine (1000 mg/m2 day 1 to 14), repeated every 3 weeks. The primary endpoint was objective response rate (ORR). Secondary endpoints were PFS, overall survival (OS), and biologic analysis of potential predictive factors of response to treatment. Results: From October 2007 to July 2009, 61 patients were enrolled for treatment. The ORR was 66.7% (8.3% of complete response and 58.3% of partial response). Stable disease was observed in 25% of patients (disease control rate of 91.7%). PFS was 12 months, and OS was 33 months. Forty patients entered to maintenance phase. Favorable tolerance profile was observed. Median PFS was 14 months, and OS was 36 months. Its efficacy was maintained in patients recently exposed to oxaliplatin. Conclusions: As front-line regimen in mCRC, FOLFIRI3-bevacizumab is maybe the best among irinotecan-5FU-bevacizumab based regimens to obtain objective response rate. PFS and OS are high but it can be secondary to high complete resection rate in our trial. In recently oxaliplatin-exposed patients, FOLFIRI3-bevacizumab regimen should be considered as first line treatment. Capecitabine-bevacizumab maintenance is clearly feasible and its encouraging result should be validated in a large phase III trial.


2019 ◽  
Vol 30 ◽  
pp. v226
Author(s):  
C. Stavraka ◽  
A. Pouptsis ◽  
A. Synowiec ◽  
V. Aggelis ◽  
L. Satterthwaite ◽  
...  

2007 ◽  
Vol 25 (18_suppl) ◽  
pp. 10502-10502 ◽  
Author(s):  
F. Di Fiore ◽  
F. Le Pessot ◽  
A. Lamy ◽  
F. Charbonnier ◽  
J. Sabourin ◽  
...  

10502 Background: In metastatic colorectal cancer (MCRC), no molecular predictive markers to cetuximab response have been yet established. The aim was to evaluate whether KRAS gene mutations, EGFR immunochemistery (IHC) and EGFR gene copy number correlate with response to cetuximab. Methods: 59 patients with MCRC treated by cetuximab between July 2004 and December 2005 were retrospectively included. Clinical data were collected and tumour response was evaluated according to RECIST criteria. EGFR IHC was performed using the Dako kit. The EGFR gene copy number was determined by FISH (Fluorescence in-Situ Hybridization). Detection of KRAS gene mutations on exon 2 was performed by sequencing of extracted paraffin-embedded DNA and then by 2 methods, SNaPshot and PCR-LCR, specifically developed to detect small fractions of mutated tumor cells. Response to cetuximab was studied according to clinical data, IHC, FISH and KRAS mutation analysis using the Fischer exact test. Predictive factors of response were determined by logistic regression. Skin reactions were collected but not considered for this analysis as regards the lack of accurate grading in a retrospective study. Times to progression (TTP) were calculated using the Kaplan-Meier method and compared with log-rank test. Results: 12 patients (20.3%) responded to cetuximab (2 patients with complete response and 10 patients with partial response), 19 (32.2%) had stable disease and 28 (47.5%) were in disease progression. A KRAS mutation was detected in 22/59 tumours and, in 6 cases, was missed by sequencing analysis but detected using the SNaPshot and PCR-LCR assays. No KRAS mutation was found in responders patients. KRAS mutation was associated with disease progression (p = 0.0005) and TTP was significantly decreased in mutated KRAS patients (3 vs 5.5 months, p = 0.015). There was no correlation between EGFR IHC and cetuximab response. No EGFR gene copy number increase was detected in responders patients. Predictive factors of cetuximab resistance were KRAS mutation (p=0.003; OR:0.10; 95IC:0.22–0.40) and age<60 (p=0.024; OR:0.13; 95IC:0.02–0.77). Conclusions: KRAS mutation is highly predictive of cetuximab resistance in MCRC. Our study also highlights the need of sensitive methods to ensure an efficient mutation detection. No significant financial relationships to disclose.


Oncology ◽  
2007 ◽  
Vol 73 (3-4) ◽  
pp. 185-191 ◽  
Author(s):  
Mohamed Hebbar ◽  
Fr&eacute;d&eacute;ric Di Fior&eacute; ◽  
Thierry Conroy ◽  
Claire Giraud ◽  
Laurent Gasnault ◽  
...  

2013 ◽  
Vol 31 (11) ◽  
pp. 1464-1470 ◽  
Author(s):  
Thomas Aparicio ◽  
Jean-Louis Jouve ◽  
Laurent Teillet ◽  
Dany Gargot ◽  
Fabien Subtil ◽  
...  

Purpose Elderly patients form a heterogeneous population. Evaluation of geriatric factors may help evaluate a patient's health status to better adapt treatment. Patients and Methods Elderly patients with previously untreated metastatic colorectal cancer (mCRC) were randomly assigned to receive fluorouracil (FU) -based chemotherapy either alone or in combination with irinotecan (IRI) in the Fédération Francophone de Cancérologie Digestive (FFCD) 2001-02 study. Sites participating in the geriatric substudy completed geriatric screening tools to perform prognostic factor analyses for treatment safety during the first 4 months after treatment initiation. Results The geriatric score was calculated in 123 patients (44%). Median age was 80 years (range, 75 to 91 years). The Charlson comorbidity index was ≤ 1 in 75%, Mini-Mental State Examination (MMSE) score was ≤ 27/30 in 31%, and Instrumental Activities of Daily Living (IADL) showed impairment in 34% of the patients. Seventy-one patients (58%) had grade 3 to 4 toxicity, 41 (33%) had a dose-intensity reduction of more than 33%, and 54 (44%) had at least one unexpected hospitalization during the first 4 months after starting treatment. In multivariate analysis, significant predictive factors for grade 3-4 toxicity were IRI arm (odds ratio [OR], 5.03), MMSE ≤ 27/30 (OR, 3.84), and impaired IADL (OR, 4.67); for dose-intensity reduction of > 33%, the significant predictive factors were alkaline phosphates > 2 × upper limit of normal (OR, 4.16) and IRI arm (OR, 6.85); and for unexpected hospitalization, significant predictive factors were MMSE ≤ 27/30 (OR, 4.56) and Geriatric Depression Scale ≤ 2 (OR, 5.52). Conclusion Geriatric factors (MMSE and IADL) are predictive of severe toxicity or unexpected hospitalization (MMSE) in a randomized prospective phase III study in mCRC. These results suggest that cognitive function and autonomy impairment should be taken into account when choosing a regimen for chemotherapy.


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