- non malign disease, if there is a contraindication with radiotherapy, or chemotherapy with Bevacizumab and Capecitabine, or a resection of rectum: uncontrolled hypertension (systolic > 150 mmHG and/or diastolic >100 mmHG) or clinical significant (e.g. active) cardiovascular disease: CVA (cardiovascular accident)/ cerebral apoplexy (< 6 months before recruitment), myocardial infarct (< 6 months before recruitment), instable angina pectoris, CHF with NYHA status II or higher, or treated serious arrhythmia, hepatic disease, significant neurologic or psychiatric disorders