- Adjuvant therapy: Beginning 2-4 weeks after surgery, patients undergo radiotherapy for 6 weeks. Patients also receive bevacizumab IV over 30-90 minutes beginning 2-4 weeks after surgery, during the radiotherapy period. Treatment with bevacizumab repeats every 3 weeks for 30 weeks in the absence of disease progression or unacceptable toxicity. Patients who are estrogen receptor- or progesterone receptor-positive (≥ 10% by IHC) receive the following concurrent hormonal therapy beginning in week 7: