- Major surgery such as intra-thoracic, intra-abdominal or intra-pelvic (with the exception of craniotomy), open biopsy or significant traumatic injury ≤ 4 weeks prior to registration, or patients who have had minor procedures, percutaneous biopsies or placement of vascular access device ≤ 1 week prior to registration, or who have not recovered from side effects of such procedure or injury.