- Because no one knows which of the study options are best, participants will be "randomized" to one of the study groups: 1. Diet Intervention arm, 2. Diet and Exercise Intervention Arm, 3. Bevacizumab, cyclophosphamide, methotrexate and diet intervention, 4. Bevacizumab, cyclophosphamide, methotrexate, diet and exercise intervention arm.