Pleuropulmonary angiosarcoma involving the liver, the jejunum and the spine, developed from chronic tuberculosis pyothorax: Multidisciplinary approach and review of literature

Pleuropulmonary angiosarcomas are very rare, with less than fifty cases reported in the literature. In most cases, the etiology is unknown but the presence of a chronic tuberculous pyothorax has been reported in several Asian case reports as a possible risk factor. We report the case of a Caucasian 68-year old man who presented with a pleuropulmonary angiosarcoma that arose from a chronic tuberculous pyothorax and which involved the ribs and the vertebrae, the psoas muscle, and the jejunum. The patient received adapted anti-tuberculosis treatment, embolization of the mass in the small bowel, palliative external beam radiotherapy on the spine and systemic chemotherapy with liposomal non-pegylated doxorubicin and ifosfamide. With this multidisciplinary approach the patient's symptoms were well controlled and he achieved a complete metabolic response after six cycles of chemotherapy. Unfortunately, the patient died after eight months from the beginning of chemotherapy due to an acute lung injury secondary to extensive bilateral interstitial infiltrates. Opportunistic pathogens or drug-induced lung toxicity were the most probable causes. Treatment with liposomal non-pegylated doxorubicin and ifosfamide could be a reasonable option in pleuropulmonary angiosarcoma but it should be validated in clinical trials. Chronic pyothorax seems to be a predisposing factor for the development of pleural angiosarcoma but further investigations are required to assess a causal association.

A critical review of HER2-positive gastric cancer evaluation and treatment: from trastuzumab, and beyond

Identification of the importance of human epidermal growth factor receptor-2 (HER2) status, biomarker testing and the development of anti-HER2 treatments have changed the prognosis of breast and gastric cancers. The addition of trastuzumab to chemotherapy has improved outcomes for patients with HER2-positive metastatic adenocarcinoma of the stomach and gastroesophageal junction, but some relevant issues remain to be elucidated or will emerge with new drugs. This article reviews the current state of HER2 in gastric cancer focusing on diagnostic and anti-HER2 targeted treatment issues and the role of trastuzumab in localized disease, and its combination or integration with new therapies.

Chemoradiation (CRT) followed by surgery and adjuvant capecitabine plus oxaliplatin (CAPOX) compared with induction CAPOX followed by concomitant CRT and surgery for locally advanced rectal cancer: Results of the Spanish GCR-3 randomized phase II trial after a median follow-up of 5 years

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Background: In locally advanced rectal cancer in contrast with the conventional approach the administration of chemotherapy prior to chemoradiation (CRT) and surgery allow most patients receive planned treatment with better toxicity profile without compromising the pCR and complete resection rates, as we previously demonstrated. (J Clin Oncol 28:859-865, 2010). We now report on the 5-year outcomes of this randomized trial. Methods: Patients with distal or middle third, T3-T4 and/or N+ rectal adenocarcinoma selected by Magnetic Resonance +/- endorectal ultrasound, were randomly assigned to arm A—preoperative CRT followed by surgery and four cycles of postoperative adjuvant capecitabine and oxaliplatin (CAPOX)—or arm B— four cycles of CAPOX followed by CRT and surgery. The following five-year outcomes were assessed: the cumulative incidence of local-regional (LRF) and distance failure (DF), disease-free (DFS) and overall (OS) using the Kaplan-Meier method. Results: Of 108 patients accrued, 52 were randomly assigned to arm A and 56 to arm B. According to intention-to-treat analysis with a median follow-up time of 69.5 months, the 5-years DFS rates were 64.3% (95% CI, 49% to 76%) in arm A and 60.7% (95 CI, 46% to 72%) in arm B (P=0.73). The 5-year cumulative incidences of local relapse were 1.9 % and 7.1% in A and B arms respectively (P= 0.36). No significant differences were detected for 5-year cumulative incidence of distant metastases (21.1% and 23.2%; P = 0.80) and 5-years overall survival (77.9% and 74.7%; P= 0.64). Conclusions: Both approaches yield similar 5-y outcomes. Because of the associated acute toxicity sparing and better compliance with induction CT compared with adjuvant CT, integrating effective systemic therapy prior to CRT and surgery may well be the next step in phase III testing versus the standard strategy to capture meaningful differences in DFS.

Management of advanced pancreatic cancer with gemcitabine plus erlotinib: efficacy and safety results in clinical practice

CONTEXT

The combination of gemcitabine and erlotinib is a standard first-line treatment for unresectable, locally advanced or metastatic pancreatic cancer. We reviewed our single centre experience to assess its efficacy and toxicity in clinical practice.

METHODS

Clinical records of patients with unresectable, locally advanced or metastatic pancreatic cancer who were treated with the combination of gemcitabine and erlotinib were reviewed.

MAIN OUTCOME MEASURES

Univariate survival analysis and multivariate analysis were carried out to indentify independent predictors factors of overall survival.

RESULTS

Our series included 55 patients. Overall disease control rate was 47%: 5% of patients presented complete response, 20% partial response and 22% stable disease. Median overall survival was 8.3 months). Cox regression analysis indicated that performance status and locally advanced versus metastatic disease were independent factors of overall survival. Patients who developed acne-like rash toxicity, related to erlotinib administration, presented a higher survival than those patients who did not develop this toxicity.

CONCLUSIONS

Gemcitabine plus erlotinib doublet is active in our series of patients with advanced pancreatic cancer. This study provides efficacy and safety results similar to those of the pivotal phase III clinical trial that tested the same combination.

Lethal Toxicity After 5-Fluorouracil Chemotherapy and Its Possible Relationship to Dihydropyrimidine Dehydrogenase Deficiency: A Case Report and Review

5-fluorouracil (5-FU) is a chemotherapeutic agent widely used in the treatment of solid malignancies, especially in colorectal cancer. A characteristic note seen with its use is the considerable interindividual variation in the incidence and severity of the toxicities seen among patients. We report the case of a 55-year old woman who presented with severe, lethal toxicity to standard doses of 5-fluorouracil (5-FU) and folinic acid. We discuss the known clinical determinants of toxicity. We also discuss the possible molecular factors implicated in the variable toxicity seen to 5-FU, especially in regards to dihiyropyrimidine dehydrogenase, a pivotal enzyme in the metabolism of 5-FU.

Long-term results with oral fluoropyrimidines and oxaliplatin-based preoperative chemoradiotherapy in patients with resectable rectal cancer. A single-institution experience

INTRODUCTION

Neoadjuvant 5-FU-based chemoradiotherapy in resectable rectal cancer (RC) is a standard of treatment. The use of oral fluoropyrimidines and new agents such as oxaliplatin may improve efficacy and tolerance.

MATERIAL AND METHODS

Between 1999 and 2009, 126 RC patients with T3-T4 and/or N+ disease were given three successive protocols: UFT (32), UFT-oxaliplatin (75) and capecitabine-oxaliplatin (19), alongside 45 Gy of radiotherapy; with surgery 4-6 weeks after. Adjuvant treatment was given in all patients. The primary objective was pathologic complete response (pCR).

RESULTS

Preoperative therapy was well tolerated, with no toxic deaths and a 15% grade 3-4 toxicity rate. Eighty-five percent of patients received the full chemotherapy dose, 56% had an abdominoperineal resection, 6% reinterventions and 57% received the full adjuvant chemotherapy planned. The pCR rate was 13%. The downstaging rate was 80%; 8% had progression of disease. The relapse rate was 20%, with local relapse in 6%. By 5 years of followup, 92% of relapses had occurred. Median follow-up was 73 months, 5- and 10-year disease-free survival rates were 75% and 50%, and 5- and 10-year overall survival rates were 79% and 66% respectively. There was no benefit from the use of oxaliplatin regarding survival or pCR rates. Older patients had worse long-term outcomes.

CONCLUSIONS

Neoadjuvant chemoradiotherapy with oral fluoropyrimidines and oxaliplatin is feasible and well tolerated. The risk of early progression is low. However, there was no added benefit with the use of oxaliplatin. There were no relapses in patients with pCR. The role of adjuvant chemotherapy is unclear.

Tolerability of raltitrexed when it is used in monotherapy and in combination with oxaliplatin (TOMOX) as advanced colorectal cancer treatment in normal clinical practice

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Background: Fluoropyrimidines (FP) based chemotherapy continue to be the cornerstone of advanced colorectal cancer (aCRC) treatment. However, FP cannot be appropriated for some patients (FP intolerance, DPD deficit, history of ischemic heart disease, etc). In these cases, Raltitrexed (R) in monotherapy or in combination with oxaliplatin (TOMOX) could be an effective alternative to FP. Methods: We assessed in an observational retrospective study the patient profile and the tolerability of R when it is used in monotherapy or in combination with oxaliplatin (TOMOX) as aCRC treatment in the normal clinical practice setting. Data from patients treated between 2010 and 2012 were collected from 15 Spanish hospitals. Reason for choosing R as aCRC treatment, patient and disease characteristics, previous treatment and toxicity were gathered. Results: The data from 144 patients treated with R (72) and TOMOX (72) were included in the analysis (64% male, median age 68 years, ECOG PS 0/1/2 in 18%/62%/19%). The main reasons to choose R were: similar efficacy and safety to other treatments (19%), convenience of the administration (18%), cardiovascular disease (17%), resistance to FP (14%), previous FP inacceptable toxicity (10%) and old age (11%). R was mainly used as third or successive treatment line (64%) while TOMOX was equally used in all treatment lines (37%, 28% and 35%). The mean number of cycles was 5 (1-15). The dose was reduced in 26% of the patients and the treatment administration was delayed in 53%. The creatinine clearance was only calculated in 20% of the cycles. The most common grade 3-4 toxicities were neutropenia (8%), anaemia (5%), nausea (2%), vomiting (1%), diarrhoea (7%) and hepatic toxicity (4%). There were 2 toxic deaths (1.4%). Conclusions: R and TOMOX represent a safe alternative for aCRC patients in which FP are not appropriated. Despite R good tolerance in normal clinical practice, it is a must to assess creatinine clearance before each cycle.

Comparing diagnosis, management, and outcomes of synchronous versus metacrhonus brain metastases from testicular germ cell tumors (TGCT): Multinstitutional experience from the Spanish Germ Cell Cancer Group (SGCCG)

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Background: Metastases of testicular germ cell tumors (TGCT) to brain are a rare event. Prognostic is poor and there is little evidence on optimal management of these patients. Methods: A retrospective review of case records of germ cell tumor patients within the Spanish Germ Cell Cancer Group from 1994 to 2012 was conducted. Results: Thirty-tree cases of testicular germ cell tumors from 17 institutions were reported. Nineteen patients (57%) presented with brain metastases at primary diagnosis (group 1: synchronous), thirteen (40%) developed brain metastases at relapse (group 2: metachronous) and only one patient developed brain metastasis during cisplatin based-chemotherapy (3%) (excluded from the analysis). Main demographics and comparison between series are shown on table. Median serum BHCG levels at initial diagnosis were higher in group 1(279.083 versus 175.873), whereas those of AFP were higher in group 2(1320 versus 4181). The most common histology in the primary tumor was choriocarcinoma for group; versus embryonal carcinoma for group 2. Patients had neurological symptoms at diagnosis of brain metastases (63% synchronic/93% metachronus). Performance status was also poor (PS 2-3: 52,6%group 1-62,2% group 2). Four patients (21%) in group 1 had a solitary brain lesion vs seven (54%) on group 2. Median time since last dose of cisplatin to development of brain metastases on group 2 was 6 months (3-22).Median overall survival was 16 months (95% CI 5,3-26,6): group 1: 16 (95% CI 13,9-18);23 group 2 (95% CI 0-165). We have not found significant differences in survival between both groups. Overall 37,5% of patients achieved long-term survival (38,9% in group 1 versus 38,5% in group 2). Patients achieving complete response of brain metastases had a better survival (log rank p:0,003). Conclusions: Long term survival can be achieved in approximately 1/3 of patients with brain metastases. Chemotherapy remains the cornerstone of treatment. Selection bias because of the retrospective nature of review should make us be careful with the conclusions.

Communication of diagnosis in elderly lung cancer patients: Who is informed, what information is given, and what patients know and want to know

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Background: Lung cancer chemotherapy decisions in patients > 70 years old are complex; in order to integrate patients in the decision-making process, they must be informed. To assess the modes of communication with older lung cancer patients, we prospectively collected data in order to assess patients’ level of knowledge about diagnosis and prognosis. We examined who informed the patient, the information given and what the patient knew and wanted to know. Relationships, among other parameters were presented. Methods: 83 patients diagnosed with lung cancer from January 2006 to February 2008 were recruited from a single center. Logistic regression and multiple imputation methods were used to assess associations between patient information and independent variables. Results: In the majority of cases, families received the diagnosis of lung cancer (92.8%). Family was more protective when the patients were elderly (p: 0,036), depressed (p: 0,054), had dementia (p: 0,03), had poor performance status (p: 0,03) or complied with frailty criteria (p: 0,014). At our institution, physicians who gave cancer diagnoses were not oncologists. We received the patient diagnosed yet. We found that they usually gave cancer diagnosis preferably to family members. Only 27,7% of patients were informed that they had tumors. There was a correlation between age and more protective attitudes on the part of physicians. 73,5% of patients actively solicited information, however elderly and frail patients tended to do so less. Conclusions: A large proportion of elderly lung cancer patients do not receive adequate information about their disease prior to contact with oncologists however they do actively ask for information and speak about cancer with oncologists. Information about cancer is difficult to provide, even in elderly patients.

Correlation of hypertension and proteinuria with outcomes in elderly bevacizumab (BEV)-treated patients with metastatic colorectal cancer (mCRC): Analysis of the BECOX and BECA studies

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Background: Studies suggest a relationship between hypertension, which is common in older patients, and outcome in BEV-treated patients with mCRC. We performed a retrospective analysis of two studies – BECA [Feliu et al BJC 2010; EudraCT 2005-002808-42] and BECOX [NCT01067053] – to determine if hypertension and proteinuria predict outcome in elderly BEV-treated patients. Methods: Patients ≥70 years received capecitabine 1250 mg/m2 bid po on days 1–14 + BEV 7.5 mg/kg on day 1 every 21 days in the BECA study; BECOX patients received capecitabine 1000 mg/m2 bid po on days 1–14 with BEV 7.5 mg/kg and oxaliplatin 130 mg/m2 on day 1 (oxaliplatin discontinued after cycle 6). Primary endpoints were overall response rate (ORR) in BECA and time to progression (TTP) in BECOX. Correlations were investigated for hypertension and proteinuria with ORR, disease control rate (DCR), overall survival (OS) and TTP. Logistic regression was performed to identify factors associated with hypertension and proteinuria. Results: 127 patients were included (BECA n=59; BECOX n=68; 61% male, median age 76 years; ECOG PS 0/1/2 45%/52%/2%). During the study 16% of patients had hypertension and 61% had proteinuria as an adverse event. Hypertension correlated with DCR, OS and TTP but not ORR; proteinuria correlated with ORR and DCR (Table). Development of proteinuria or hypertension in the first 2 cycles did not correlate with efficacy. Risk factors associated with development of hypertension were female gender (odds ratio [OR] 0.241; p=0.011) and greater no. of BEV cycles (OR 1.112; p=0.002); factors associated with proteinuria were diabetes (OR 3.869; p=0.006) and greater no. of BEV cycles (OR 1.181; p<0.0001). Conclusions: This analysis of the BECOX and BECA studies suggests that hypertension and proteinuria are associated with outcome in BEV-treated elderly patients with mCRC. Clinical trial information: NCT01067053. [Table: see text]

Maintaining success, reducing treatment burden, focusing on survivorship: highlights from the third European consensus conference on diagnosis and treatment of germ-cell cancer

In November 2011, the Third European Consensus Conference on Diagnosis and Treatment of Germ-Cell Cancer (GCC) was held in Berlin, Germany. This third conference followed similar meetings in 2003 (Essen, Germany) and 2006 (Amsterdam, The Netherlands) [Schmoll H-J, Souchon R, Krege S et al. European consensus on diagnosis and treatment of germ-cell cancer: a report of the European Germ-Cell Cancer Consensus Group (EGCCCG). Ann Oncol 2004; 15: 1377-1399; Krege S, Beyer J, Souchon R et al. European consensus conference on diagnosis and treatment of germ-cell cancer: a report of the second meeting of the European Germ-Cell Cancer Consensus group (EGCCCG): part I. Eur Urol 2008; 53: 478-496; Krege S, Beyer J, Souchon R et al. European consensus conference on diagnosis and treatment of germ-cell cancer: a report of the second meeting of the European Germ-Cell Cancer Consensus group (EGCCCG): part II. Eur Urol 2008; 53: 497-513]. A panel of 56 of 60 invited GCC experts from all across Europe discussed all aspects on diagnosis and treatment of GCC, with a particular focus on acute and late toxic effects as well as on survivorship issues. The panel consisted of oncologists, urologic surgeons, radiooncologists, pathologists and basic scientists, who are all actively involved in care of GCC patients. Panelists were chosen based on the publication activity in recent years. Before the meeting, panelists were asked to review the literature published since 2006 in 20 major areas concerning all aspects of diagnosis, treatment and follow-up of GCC patients, and to prepare an updated version of the previous recommendations to be discussed at the conference. In addition, ∼50 E-vote questions were drafted and presented at the conference to address the most controversial areas for a poll of expert opinions. Here, we present the main recommendations and controversies of this meeting. The votes of the panelists are added as online supplements.

Incidence of hand-foot syndrome with capecitabine in combination with chemotherapy as first-line treatment in patients with advanced and/or metastatic gastric cancer suitable for treatment with a fluoropyrimidine-based regimen

INTRODUCTION

Hand-foot syndrome (HFS) is a limiting toxicity of capecitabine, which is not life-threatening but could compromise capecitabine efficacy.

MATERIALS AND METHODS

This phase II, multicenter, non-controlled study assessed the safety, particularly grade three HFS incidence, and efficacy of four capecitabine-based chemotherapy regimens [cisplatin/capecitabine (CX), epirubicin/cisplatin/capecitabine (ECX), epirubicin/oxaliplatin/capecitabine (EOX) and docetaxel/cisplatin/capecitabine (DCX)] as first-line treatment for advanced and/or metastatic gastric cancer.

RESULTS

One hundred and eight patients were assigned to one of the four treatment groups, according to investigator's criteria, and grouped together for both safety and efficacy primary analyses. HFS was reported in 31 patients (19.6%) and its first presentation occurred at a median of 72 days (range 19-209 days). Grade 3 HFS developed in 6.3, 5.2, 3.7 and 2.4%, of patients receiving ECX, DCX, EOX or CX chemotherapy regimen, respectively. Capecitabine dose reduction/discontinuation due to HFS was required in 5.7% of patients (9/158). The most common (> 10%) grade 3-4 treatment-related AEs were neutropenia (15.2%), asthenia (12.0%) and diarrhoea (11.4%).

CONCLUSIONS

A moderate incidence of HFS was reported in patients treated with capecitabine, which generally presented late and required dose reduction in < 1/3 of patients. The results suggest that capecitabine may be useful in combination with standard fluorouracil-based regimens in patients with advanced and/or metastatic gastric cancer with favourable safety profile.

Neoadjuvant capecitabine, oxliplatin, and bevacizumab (CAPOX-B) in intermediate-risk rectal cancer (RC) patients defined by magnetic resonance (MR): GEMCAD 0801 trial

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Background: Retrospective data suggest that RT might not be needed in all patients with stage II/III RC. Modern systemic therapy might have local efficacy similar to chemoradiation (CRT). Methods: A multicenter phase II trial was undertaken to evaluate safety and efficacy of neoadjuvant CAPOX-B in patients with T3 middle third rectal adenocarcinoma. Eligible patients (pts) had measurable disease at the baseline and candidate for R0 total mesorectal escision (TME) with intermediate-risk defined by pelvic MR a) T3 with distal border of tumor > 5 cm from the anal verge and below the sacral promontory. b) tumor ≥2 mm from the mesorectal fascia. Pts received 4 cycles of Cap 2000 mg/m2 (d1-14), Ox 130 mg/m2 (d1) and B 7.5 mg/kg (d1) every 3 weeks (last cycle without B). Pts undergo re-staging with MR. One radiologist reviewed all pre- and post-treatment MR scans independently. Pts without progression proceed to TME 4-6 weeks from the last cycle. If progression, pts were to be referred for pre-op cap/RT followed by TME. 1º Endpoint: Tumor Response (RECIST). Design: Simon 2-stage; 28 pts 1st stage and 46 pts 2nd stage. We report data on the planned analysis of pts included for 1st stage. Results: 28 eligible pts (10F/18M) were enrolled from 7/09-5/11. Tumor response, compliance and toxicity details are shown in table below. Two pN2 pts received postop Cap/RT. Conclusions: Neoadjuvant CAPOX-B is active and safe. Early parameters of efficacy are encouraging and seem similar to those observed with CRT. [Table: see text]

Multimodality treatment of pediatric and adult patients with Ewing sarcoma: A single-institution experience

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Background: Treatment of Ewing sarcoma pts. usually follows pediatric protocols, both in children and in adults. However, older patients fare poorly in most series. We analyze our experience with the 2001 protocol of the Spanish Society of Pediatric Oncology. Methods: Retrospective analysis. Schema: 6 cycles (cy) of VIDE chemotherapy (CT: vincristine, ifosfamide, etoposide, doxorrubicin). If no progression, local treatment (surgery or RT) and consolidation adjusted to risk: VACx8 (vincristine, dactinomycin, ciclophosphamyde) in standard-risk pts; if increased risk (axial, complete response in lung metastases or non-pulmonary metastases) VACx1, high-dose CT (busulphan-melphalan) and autologous transplant (ATSP). Analysis: induction CT toxicity, pathological response rates, consolidation treatment, disease-free (DFS) and overall survival (OS) (Kaplan- Meier). Log-rank and Cox regression analysis of prognostic factors in OS. Results: 35 patients (01.2003-05.2011). 60% male. Median age 16 y (r 7-57). Axial (43%), extremities (34%), extra-osseous (18%) and ribs (9%). Metastases: 54% (lung 58%, bone 26%, others 12%). > 1 location: 29%. Induction CT: 83% received 6 cy. 6% early progressions and 3% toxic deaths. 196 cycles of CT. Dose reduction (etoposide) in 60%. Grade 3-4 toxicity: neutropenia 13%, anemia 14%, neutropenic fever 13%, diarrhoea-stomatitis 7%.Local treatment: surgery (49%), radiotherapy (29%), none (22%). In 17 resections, > 90% necrosis in 53%. Consolidation: VACx8 29%; VACx1-ATSP in 34%; 37% other treatments (progression). No ATSP-related mortality. Median follow-up: 36 m ( 5-101 m). Median DFS 25 m (16-34 m). Median OS 28 m (15-41 m), 3-year OS 40%. Median time to progression 7 m (0.4-15 m). Median OS from progression 7 m (0.4-15 m). Age < 15 years, a non-axial primary and no extra-pulmonary metastases were favourable prognostic factors in the univariate analysis. Conclusions: Induction CT with the VIDE regimen is feasible in most patients, with a low risk of early progression. Hematological toxicity is substantial but manageable. Adults patients have a worse prognosis compared to pediatric patients. Unfortunately, survival after progression is dismal.

Pharmacogenetic predictors of adverse events in stage II-III colon cancer (CC) patients treated with oxaliplatin and fluoropyrimidines-based adjuvant chemotherapy (CT): A GEMCAD study

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Background: Although the benefit of oxaliplatin-based adjuvant CT has been demonstrated in patients with resected stage II-III CC, the recommendation to administer postoperative treatment must consider its potential adverse events. Predicting individual patients’risk of severe toxicity could potentially improve the quality of care by allowing individualization of treatment. We investigate the utility of determining single nucleotide polymorphisms (SNPs) in genes involved in oxaliplatin and fluoropyrimidines metabolisms to predict the toxicity of adjuvant CT in stage II-III CC patients. Methods: DNA was extracted from formalin-fixed paraffin-embedded samples from 379 surgically treated high-risk stage II (27.71%) and stage III (72.29%) CC patients receiving adjuvant CT (54.35% FOLFOX, 45.65% XELOX) from January 2004 to December 2008. Genotyping was performed for 35 SNP in 18 genes using the MassARRAY (SEQUENOM) technology. Results: A total of 89 (23.4%) patients experienced at least one grade 3-4 adverse event. The most common grade 3-4 toxicities were neutropenia (15.3%), diarrhea (8.17%) and neurotoxicity (7.65%). The MTHFR rs1801133 C>T C/C (30.1% C/C, 17.5% C/T, 21.7% T/T; p=0.043) and XRCC2 rs3218408 T>G T/T (28.3% T/T, 16.2% G/T and 10% G/G; p=0.007) genotypes were associated with higher risk of any grade 3-4 toxicities, whereas the incidence of severe toxicity was lower in patients with the UMPS rs3772807 G>C C/C (14% C/C, 21% C/G, 28.9% G/G; p=0.021) and DPYD rs970337 G>A A/A (16.7% A/A, 21.1% A/G, 30.1% G/G; p=0.028) genotypes. In addition, the DPYD rs970337 G>A A/A genotype was associated with a lower rate of grade 3-4 diarrhea (5% A/A, 9.4% A/G, 8.1% G/G; p=0.030), the ABCG2 rs3114018 A>C C/C genotype with an increased rate of grade 3-4 neutropenia (15.2% C/C, 6.3% A/C, 4.5% A/A; p=0.034) and the ERCC1 rs11615 T>C T/T genotype with a lower rate of grade 3-4 neurotoxicity (5.4% T/T, 9.1% C/T, 10.2% C/C; p=0.032). Conclusions: Our data suggest that SNPs in genes involved in oxaliplatin and fluoropyrimidines metabolisms can potentially predict severe toxicity in stage II-III CC patients treated with adjuvant CT.