| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated  | 
| locally advanced rectal cancer | 
 
 
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| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 9.1 | 
 
| E.1.2 | Level  | LLT | 
 
| E.1.2 | Classification code  | 10038050 | 
 
| E.1.2 | Term  | Rectal cancer stage III | 
 
 
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| E.1.2 Medical condition or disease under investigation | 
| E.1.2 | Version  | 9.1 | 
 
| E.1.2 | Level  | LLT | 
 
| E.1.2 | Classification code  | 10038049 | 
 
| E.1.2 | Term  | Rectal cancer stage II | 
 
 
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| E.1.3 | Condition being studied is a rare disease  |  No  | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial  | 
To investigate whether the addition of oxaliplatin to preoperative fluoropyrimidine-based chemoradiation and postoperative fluoropyrimidine-based chemotherapy improves disease-free survival in patients with locally advanced rectal cancer. Disease-free survival is defined as the interval from randomization to loco-regional failure, metastatic recurrence, the appearance of a secondary colorectal cancer or death, whichever occurs first. 
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| E.2.2 | Secondary objectives of the trial  | 
secondary objectives are to compare the two treatment arms with respect to overall survival, loco-regional failure, distant failure, pathological down-staging (ypT0-2N0) rate, pathological complete remission (ypT0N0) rate, tumor regression grade, histopathological R0 resection rate, sphincter preservation rate, perioperative complication rate, toxicity (CTC). 
 
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| E.2.3 | Trial contains a sub-study  |  No  | 
| E.3 | Principal inclusion criteria  | 
Male or female patients with histologically proven adenocarcinoma of the rectum (tumour ≤ 12 cm from the anal verge as assessed by rigid proctoscopy). ¨ Clinical tumour stage T3/4 or any node-positive disease (clinical stage according the TNM classification system (Appendix J), positive nodes as diagnosed on endorectal ultrasound and/or MRI). Tumour is staged by preferably a high resolution MRI. If MRI is not available, locoregional staging must be performed by computed tomography plus endorectal ultrasound. ¨ No evidence of metastatic disease (as evidenced by negative CT-scan of the chest and abdomen). ¨ The disease must be considered either resectable at the time of entry or expected to become resectable after preoperative chemoradiation. ¨ Age ≥ 18 years. ¨ WHO/ECOG Performance Status ≤ 2 ¨ No prior cytotoxic chemotherapy or radiotherapy for rectal cancer. ¨ No prior radiotherapy to the pelvis, for any reason. ¨ Presence of adequate contraception in fertile patients. Adequate methods of contraception are: intra-uterine device, hormonal contraception, condom use with spermicide. Pregnant or breastfeeding women are excluded from participation. ¨ Adequate bone marrow, hepatic and renal function: ¨ Haemoglobin ≥ 10.0 g/dL (transfusions allowed to achieve or maintain levels), absolute neutrophil count ≥ 1.5 x 109/L, platelet count ≥ 100 x 109/L, ¨ ALAT, ASAT ≤ 2.5 x ULN, ¨ Alkaline phosphatase ≤ 2.5 x ULN, ¨ Total bilirubin ≤ 1.5 x ULN, ¨ Creatinine clearance > 50 mL/min (calculated according to Cockroft and Gault) and ¨ Creatinine ≤ 1.5 x ULN. ¨ Ability to swallow tablets. ¨ Patient must not have been treated with any investigational drug, agent nor procedure, (i.e. did not participate in another trial within 4 weeks) before entry in this trial. No previous (within the last 5 years) or concurrent malignancies, with the exception of adequately treated cone-biopsied in situ carcinoma of the cervix or basal cell carcinoma of the skin. ¨ No clinically significant (i.e. active) cardiac disease (e.g. congestive heart failure, symptomatic coronary artery disease and cardiac arrhythmia not well controlled with medication) or myocardial infarction within the last 12 months. ¨ No known allergy or any other adverse reaction to any of the study drugs or to any related compound. ¨ No known dihydropyrimidine dehydrogenase deficiency. ¨ No known significant impairment of intestinal resorption (e.g. chronic diarrhoea, inflammatory bowel disease). ¨ No pre-existing condition which would deter chemoradiotherapy or radiotherapy, i.e. fistulas, severe ulcerative colitis (particularly patients currently taking sulphasalazine), Crohn’s disease, prior adhesions. ¨ No peripheral neuropathy ≥ grade 2 (according to CTCAE v3.0) ¨ No serious uncontrolled intercurrent infections or other serious uncontrolled concomitant disease. ¨ No organ allograft requiring immunosuppressive therapy. ¨ No requirement for concurrent use of the antiviral agent sorivudine or chemically related analogues, such as brivudine. ¨ No history of uncontrolled seizures, central nervous system disorders or psychiatric disability judged by the investigator to be clinically significant precluding informed consent or interfering with compliance for oral drug intake. ¨ No psychological, familial, sociological or geographical condition potentially hampering compliance with the study protocol and follow-up schedule (these conditions should be discussed with the patient before registration in the trial). ¨ Patients can only be randomized once in this trial. ¨ Written informed consent before randomization according to ICH-GCP, and local, national and international regulations. | 
 
 
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| E.4 | Principal exclusion criteria | 
-severe renal impairment (creatinine clearance below 30 ml/min) -pregnancy and lactation -hypersensitivity to capecitabine or 5-FU or to any of the excipients -patients with history of severe and unexpected reactions to fluoro pyrimidine therapy -patients with known dihydropyrimidine dehydrogenase (DPD) deficiency -patients with severe leucopenia, neutropenia and thrombocytopenia -severe hepatic impairment -concomittant use of sorivudine or its chemically related analogues such as brivudine -patients with known allergy against oxaliplatin or other platinum compounds -patients with impaired bone marrow function -patients with pre-excisting peripheral neuropathy | 
 
 
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| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| The primary endpoint is disease-free survival | 
 
 
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| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis |  No  | 
| E.6.2 | Prophylaxis |  No  | 
| E.6.3 | Therapy |  Yes  | 
| E.6.4 | Safety |  Yes  | 
| E.6.5 | Efficacy |  Yes  | 
| E.6.6 | Pharmacokinetic |  No  | 
| E.6.7 | Pharmacodynamic |  No  | 
| E.6.8 | Bioequivalence |  No  | 
| E.6.9 | Dose response |  No  | 
| E.6.10 | Pharmacogenetic |  No  | 
| E.6.11 | Pharmacogenomic |  No  | 
| E.6.12 | Pharmacoeconomic |  No  | 
| E.6.13 | Others |  No  | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) |  No  | 
| E.7.1.1 | First administration to humans |  No  | 
| E.7.1.2 | Bioequivalence study |  No  | 
| E.7.1.3 | Other |  No  | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) |  No  | 
| E.7.3 | Therapeutic confirmatory (Phase III) |  Yes  | 
| E.7.4 | Therapeutic use (Phase IV) |  No  | 
| E.8 Design of the trial | 
| E.8.1 | Controlled |  Yes  | 
| E.8.1.1 | Randomised |  Yes  | 
| E.8.1.2 | Open |  Yes  | 
| E.8.1.3 | Single blind |  No  | 
| E.8.1.4 | Double blind  |  No  | 
| E.8.1.5 | Parallel group |  Yes  | 
| E.8.1.6 | Cross over  |  No  | 
| E.8.1.7 | Other |  No  | 
| E.8.2 |  Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) |  Yes  | 
| E.8.2.2 | Placebo  |  No  | 
| E.8.2.3 | Other |  No  | 
| E.8.3 | 
                                The trial involves single site in the Member State concerned
                             |  No  | 
| E.8.4 |  The trial involves multiple sites in the Member State concerned  |  Yes  | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 6 | 
| E.8.5 | The trial involves multiple Member States |  Yes  | 
| E.8.5.1 | Number of sites anticipated in the EEA | 140 | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA |  Yes  | 
| E.8.6.2 | Trial being conducted completely outside of the EEA |  Information not present in EudraCT  | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned | 
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| E.8.7 | Trial has a data monitoring committee |  Yes  | 
| E.8.8 | 
                        Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial
                     | 
| as defined in the protocol (page 80) | 
 
 
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| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 8 | 
| E.8.9.1 | In the Member State concerned months | 8 | 
| E.8.9.1 | In the Member State concerned days | 0 | 
| E.8.9.2 | In all countries concerned by the trial years | 8 | 
| E.8.9.2 | In all countries concerned by the trial months | 8 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |