Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Undergo major surgical procedure within 28 days prior to first bevacizumab dose, or anticipation of the need for a major surgical procedure during the course of the study except participants who receive NACT and will need interval surgery. This may include but is not limited to laparotomy. Major surgical procedure within 4 weeks prior to randomization or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 4 weeks prior to randomization or anticipation of need for a major surgical procedure during the course of the study other than for diagnosis Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 and patients must have recovered from any effects of any major surgery; anticipation of need for a major surgical procedure during the course of the study Major surgical procedure, other than for diagnosis, within 4 weeks prior to initiation of study treatment, or anticipation of need for a major surgical procedure during the study; Major surgical procedure other than for diagnosis within 4 weeks before initiation of study treatment, or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure other than for diagnosis within 28 days prior to Day 1 of Cycle 1, or anticipation of a major surgical procedure during the study Major surgical procedure within 4 weeks prior to randomization or anticipation of the need for a major surgical procedure during the study other than for diagnosis Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure other than for diagnosis within 4 weeks prior to initiation of study treatment, or anticipation of need for a major surgical procedure during the study Major surgical procedure within 4 weeks prior to initiation of study treatment or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to initiation of study treatment or anticipation of need for a major surgical procedure during the course of the study. Major surgical procedure other than for diagnosis within 4 weeks prior to initiation of study treatment, or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure other than for diagnosis within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure other than cystectomy during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study with the exception of the planned breast cancer surgery that is part of the trial design Major surgical procedure within 4 weeks prior to randomisation or anticipation of the need for a major surgical procedure during the course of the study other than for diagnosis Major surgical procedure within 28 days prior to start of study treatment or anticipation of need for a major surgical procedure during the course of the study. This does not refer to the planned liver metastasectomy that is part of the study. Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 4 weeks prior to initiation of study treatment of anticipation of need for a major surgical procedure during the course of the study other than for diagnosis Major surgical procedure other than for diagnosis within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to study treatment or anticipation of need for a major\r\nsurgical procedure during the course of the study Major surgical procedure other than for diagnosis within 28 days prior to cycle 1 day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure ? 2 weeks prior to enrolment or anticipation of need for a major surgical procedure during the course of the study other than for diagnosis. Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure =< 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Anticipation of need for major surgical procedure during the course of the study Anticipation of need for major surgical procedure during the course of the study other than as outlined by the protocol Patients who have major surgical procedure, other than for diagnosis, within 28 days before initiation of study treatment or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study. Major surgical procedure =< 28 days prior to registration or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure other than for diagnosis within 4 weeks prior to initiation of study treatment or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Anticipation of need for major surgical procedure during the course of the study Major surgical procedure other than for diagnosis within 28 days prior to first dosing or during the course of the study. Major surgical procedure within 28 days prior to Day 1 or anticipation of need for a major surgical procedure during the course of the study Anticipation of need for major surgical procedures during the course of study. Major surgical procedure other than for diagnosis within 4 weeks prior to initiation of study treatment, or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure other than for diagnosis within 28 days prior to Day 1 of Cycle 1, or anticipation of a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to Cycle 1, Day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study; transurethral resection or other urinary tract diagnostic procedures, excisional biopsy, or MediPort placement, are NOT defined as major surgical procedures Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Anticipation of need for major surgical procedure =< 6 months after randomization Major surgical procedure within 28 days prior to treatment start or anticipation of need for a major surgical procedure during the course of the study (endobronchial ultrasound [EBUS] and mediastinoscopy and video-assisted thoracoscopic surgery [VATS] are not considered major surgical procedures) Major surgical procedure within 28 days, or anticipation of the need for major surgical procedure during the course of the study as well as minor surgical procedure within 7 days prior to study enrollment Major surgical procedure other than for diagnosis within 28 days prior to Cycle 1 Day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Anticipation of need for major surgical procedures during the course of the study Major surgical procedure within 28 days prior to Cycle 1, Day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure other than for diagnosis within 4 weeks prior to the first dose of study treatment, or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to cycle 1, day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure within 28 days prior to Cycle 1, Day 1, or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure other than for diagnosis within 28 days prior to Cycle 1, Day 1 or anticipation of a major surgical procedure during the course of the study Major surgical procedure within 4 weeks prior to randomization or anticipation of the need for a major surgical procedure during the course of the study other than for diagnosis; placement of central venous access catheter(s) (e.g., port or similar) is not considered a major surgical procedure and is therefore permitted Major surgical procedure within 4 weeks prior to randomization or anticipation of need for a major surgical procedure during the course of the study other than for diagnosis Patients who have had significant traumatic injury within 28 days prior to enrollment are not eligible No major surgical procedure or significant traumatic injury within 6 weeks prior to study registration, and must have fully recovered from any such procedure. Significant traumatic injury within 3 weeks prior to planned initiation of study therapy Major surgical procedure or significant traumatic injury within 28 days prior to study enrollment Traumatic injury within 2 weeks before initiation of study treatment Major surgical procedure or significant traumatic injury within 28 days before start of study registration Traumatic injury or palliative radiotherapy within 2 weeks prior study treatment initiation Patients who have had major surgical procedures or significant traumatic injury within 28 days prior to study treatment Patients who have had a major surgical procedure within 14 days of randomization. Patient has significant traumatic injury within 28 days before randomization. Stem cell infusion without traumatic brain injury Major surgical procedure or significant traumatic injury within 28 days prior to study drug administration. Major surgical procedure or significant traumatic injury within 28 days before start of study medication Major surgical procedure or significant traumatic injury within 28 days before start of study medication Or a traumatic brain injury will be excluded Invasive surgical intervention (including biopsy by surgical route), major traumatic injury during the 28 days prior to the start of treatment, or scheduled invasive surgical intervention during the study treatment Significant traumatic injury within the past 4 weeks. Major surgical procedure or significant traumatic injury within 28 days prior to study drug administration Patients are excluded if they have had a surgical procedure or a significant traumatic injury within 28 days prior to randomization Have had a major surgical procedure or significant traumatic injury including nonhealing wound, peptic ulcer, or bone fracture ?28 days prior to randomization. Have a history of traumatic or surgical castration Major surgical procedure or significant traumatic injury within 4 weeks prior to first dose of study treatment history of traumatic brain or head injury with loss of consciousness Major surgical procedure (including craniotomy) or significant traumatic injury less than 28 days or those who receive minor surgical procedures (e.g. core biopsy or fine needle aspiration) within 7 days Major surgical procedure or significant traumatic injury, radiotherapy, chemotherapy, targeted therapy, hormone therapy, or other anticancer therapy. Major surgical procedure or significant traumatic injury, as defined by the site investigator, within 28 days before study registration. Major surgical procedure or significant traumatic injury within 28 days before start of study medication Significant traumatic injury within 3 weeks prior to initiation of study treatment Significant traumatic injury within 4 weeks before Cycle 1, Day 1 Patients with a history of traumatic brain injury prior to tumor diagnosis are not eligible Significant traumatic injury or major surgical procedure within 4 weeks prior to starting study treatment History of brain injury that significantly impacted cognition; as indicated responses on the Ohio State University Traumatic Brain Injury Identification Method (OSU TBI-ID) greater or equal to any of the following: 30 minutes or more of loss of consciousness (LOC), two or more mild cases within two weeks of each other, or any injury with loss of consciousness before the age of 15 Major surgical procedure or significant traumatic injury within 28 days before start of study medication Major surgical procedure, traumatic injury, non-healing wound, or peptic ulcer ?28 days prior to randomization. Any past neurologic insult that is known to affect brain function such as traumatic brain injury, dementia, encephalopathy, etc. Participant has a history of neurologic event (i.e. traumatic brain injury) unrelated to cancer or its treatment History of traumatic brain injury With history of a neurological disorder, neurodegenerative disease, or traumatic brain injury with loss of consciousness (> 60 minutes), as per medical records or patient report Known history of cerebrovascular disease, dementia or prior non-mild traumatic brain injury Major surgical procedure or significant traumatic injury within 6 weeks prior to study registration or not fully recovered from any such procedure An open biopsy, non-healing wound, ulcer or significant traumatic injury within 28 days prior to starting treatment (percutaneous, endobronchial, and endoscopic biopsies are allowed) Major surgery, open biopsy or significant traumatic injury within 4 weeks prior to study entry Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication Had major surgical procedure, open biopsy, or significant traumatic injury within 21 days prior to day 1 of treatment on study A major surgical procedure, open biopsy, or significant traumatic injury within 3 months prior to cycle 1 day 1 (percutaneous/endobronchial/endoscopic biopsies are allowed) Serious non-healing wound, ulcer, bone fracture, major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to “on-study” status FOR ALL PHASES (Ib AND II): Major surgical procedure or significant traumatic injury (as judged by the investigator) within 28 days before start of study medication, open biopsy within 7 days before start of study medication Major surgical procedure, open biopsy, or significant traumatic injury within 28 days of day 1 of therapy. Major surgery, open biopsy or significant traumatic injury within 28 days before the start of study treatment A major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to starting cediranib (percutaneous/endobronchial biopsies are allowed) Major surgical procedure, open biopsy or significant traumatic injury =< 28 days prior to registration Major surgical procedure, open biopsy, or significant traumatic injury within 28 days of day 1 of therapy Major surgery, open biopsy or significant traumatic injury within 4 weeks of first study drug Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to starting cediranib Major surgery, open biopsy or significant traumatic injury within 4 weeks of first study drug Had major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 of treatment on study Serious non-healing wound, ulcer, bone fracture, major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to being registered for protocol therapy Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to starting cediranib Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to registration (biliary stenting or percutaneous biliary drainage are not included) Major surgical procedure, open biopsy, or significant traumatic injury less than 3 weeks or those who receive minor surgical procedures (eg core biopsy or fine needle aspiration) within 1 week from first dose of first study drug administration Major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to randomization on this study Craniotomy or any other major surgery, open biopsy, or significant traumatic injury within 4 weeks of enrollment Major surgery (including ostomy reversal), open biopsy or significant trauma injury, within 28 days prior to randomization. Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication Major surgery, open biopsy or significant traumatic injury within 4 weeks of first study drug Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication. Had major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 of treatment on study Subject has undergone a major surgical procedure, open biopsy, radiofrequency ablation or has experienced a significant injury within 28 days prior to enrollment Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to starting nivolumab and bevacizumab Major surgical procedure, open biopsy, or significant traumatic injury =< 56 days prior to randomization Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication Major surgical procedure, open biopsy, or significant traumatic injury =< 28 days prior to randomization Participants may not have a major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to starting cediranib Major surgical procedure, open biopsy, or significant traumatic injury =< 4 weeks prior to registration/randomization; (port-a-cath placement does not count as a major surgical procedure and patients can be enrolled at any time after placement) Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication Major surgery, open biopsy or significant traumatic injury within 2 weeks of first dose of study drug Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication Major surgical procedure, laparoscopic procedure, open biopsy or significant traumatic injury within 28 days prior to enrollment Major surgery, open biopsy or significant traumatic injury within 4 weeks of first dose of study drug Major surgery, open biopsy or significant traumatic injury within 4 weeks of first dose of study drug Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to registration (with the exception of craniotomy) For patients who have had a major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to enrollment, or anticipate the need for such while on active treatment, may participate and receive bevacizumab at the start of the second or third cycle as they would under standard care; placement of vascular access device is not considered major surgery, but the incision must have healed before initiation of treatment Serious non-healing wound, ulcer, bone fracture, or have undergone a major surgical procedure, open biopsy, or significant traumatic injury =< 28 days or core biopsy =< 7 days prior to randomization Serious non-healing wound, ulcer, bone fracture, major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to being registered for protocol therapy Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of day 1 of treatment with FOLFIRI Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to enrollment. Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to starting cediranib Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 therapy No major surgery, open biopsy or significant traumatic injury within 4 weeks of start of first dose Major surgery, open biopsy or significant traumatic injury within 4 weeks of starting therapy Major surgical procedure, open biopsy, or significant traumatic injury within 3 weeks before start of study medication Major surgical procedure, open biopsy, or significant traumatic injury within 3 weeks before start of study medication Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 of therapy Major surgical procedure, open biopsy, or significant traumatic injury less than 4 weeks or those who receive minor surgical procedures (e.g. core biopsy or fine needle aspiration) within 1 week from first dose of first study drug administration Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to Day 1 of Cycle 1 or abdominal surgery, abdominal interventions or significant abdominal traumatic injury within 60 days prior to Day 1 of Cycle 1 Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before registration Craniotomy or any other major surgery, open biopsy, or significant traumatic injury within 4 weeks of enrollment Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to initiation of treatment (or anticipated need during study) Major surgery, open biopsy or significant traumatic injury within 4 weeks of first study drug Any serious non-healing wound, ulcer, bone fracture, major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to starting treatment with bevacizumab; if surgically cleared for chemotherapy on trial, bevacizumab may be delayed as clinically indicated up to 8 weeks after such procedures Major surgery, open biopsy or significant traumatic injury within 4 weeks of first study drug Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication; minor procedures such as diagnostic laparoscopy, percutaneous biopsy and paracentesis within 14 days before start of study medication Major surgical procedure, open biopsy, or significant traumatic injury within 28 days before start of study medication Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to Day 1 of Cycle 1 Craniotomy or any other major surgery, open biopsy, or significant traumatic injury within 4 weeks of randomization Major surgical procedure, open biopsy, or significant traumatic injury within 14 days prior to day 1 or anticipation of need for major non-cranial surgical procedure during the course of the study Participants may not have a major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to starting cediranib; anticipation of need for major surgical procedures during the course of the study also excludes patients from the trial Major surgical procedure (including open biopsy, significant traumatic injury, etc.) within 28 days, or anticipation of the need for major surgical procedure during the course of the study as well as minor surgical procedure (excluding placement of a vascular access device or bone marrow biopsy) within 7 days prior to study enrollment Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to randomization or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 of treatment or anticipation of need for major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to enrollment, or anticipation of need for major surgical procedure during the course of the study Prior therapy:\r\n* Prior treatment with systemic immunosuppressive treatments, aside from systemic dexamethasone therapy for cerebral edema, such as methotrexate, chloroquine, azathioprine, etc. within 3 months of start of study therapy\r\n* Prior treatment with interstitial brachytherapy within 6 months of start of study therapy\r\n* Previous treatment with programmed death-protein 1 (PD-1) or programmed death-ligand 1 (PD-L1) directed therapy\r\n* Surgical procedure (including open biopsy, surgical resection, wound revision, or any other major surgery involving entry into a body cavity) or significant traumatic injury within 28 days prior to first study treatment, or anticipation of need for major surgical procedure during the course of the study\r\n* Minor surgical procedure (eg, stereotactic biopsy within 7 days of first study treatment; placement of a vascular access device within 2 days of first study treatment) Major surgical procedure or significant traumatic injury within 14 days of initiating study drug or anticipation of the need for major surgery during the study Patients may have undergone a major or minor surgical procedure as long as the following apply:\r\n* Major surgical procedure, open biopsy or significant traumatic injury greater than 28 days prior to the first date of study therapy\r\n* Core biopsy or intravenous (IV) port placement greater than 7 days prior to the first date of study therapy Major surgical procedure or significant traumatic injury within 28 days prior to study entry or anticipation of the need for major surgery during the course of study treatment Major surgical procedure or significant traumatic injury within 14 days of initiating study drug or anticipation of the need for major surgery during the study Major surgical procedure (including open biopsy, significant traumatic injury, etc.) within 28 days, or anticipation of the need for major surgical procedure during the course of the study as well as minor surgical procedure (excluding placement of a vascular access device or bone marrow biopsy) within 7 days prior to randomization. Major surgical procedure or significant traumatic injury within 28 days prior to Day 1, Cycle 1, or anticipation of the need for major surgery during study treatment Major surgical procedure, open biopsy, or significant traumatic injury within 30 days prior to Cycle 1, Day 1 or anticipation of need for major surgical procedure during the course of the study Major surgery, open biopsy, significant traumatic injury within 28 days of starting treatment or anticipation of need for major surgical procedure during the course of the study Invasive procedures defined as follows:\r\n* Major surgical procedure or significant traumatic injury within 28 days prior to day 1 therapy, or open biopsy within 7 days prior to day 1 therapy\r\n* Anticipation of need for major surgical procedures during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 or anticipation of need for major surgical procedure during the course of the study Surgical procedure (including open biopsy, surgical resection, wound revision, or any other major surgery involving entry into a body cavity) or significant traumatic injury within 28 days prior to first study treatment, or anticipation of need for major surgical procedure during the course of the study. History of a major surgical procedure or a significant traumatic injury within 14 days prior to commencing treatment, or the anticipation of the need for a major surgical procedure during the course of the study. Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to the start of study drug (56 days for hepatectomy, open thoracotomy, major neurosurgery) or anticipation of need for major surgical procedure during the course of the study (except for the planned metastasectomy) Patients with a major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to initiation of therapy, or anticipation of need for major surgical procedure during the course of the study other than that defined by protocol are ineligible Major surgical procedure or significant traumatic injury within 28 days prior to day 1 or anticipation of the need for major surgery during the course of study treatment Patients who have had a major surgical procedure, open biopsy, or significant traumatic injury with poorly healed wound within 6 weeks prior to first dose of study drug; or anticipation of need for major surgical procedure during the course of the study (other than defined by protocol); or fine needle aspirations or core biopsies) within 7 days prior to first dose of study drug. NOTE: Patients will be allowed to start cycle 1 day 1 therapy after 24 hours from pre-treatment biopsy Major surgical procedure with 4 weeks of first dose of study drug; open biopsy, or significant traumatic injury within 7 days prior to enrollment date; anticipation of need for major surgical procedure during the course of the study. (Bevacizumab-related exclusion) Surgical procedure (including open biopsy, surgical resection, wound revision, or any other major surgery involving entry into a body cavity) or significant traumatic injury within 28 days prior to study enrollment, or anticipation of need for major surgical procedure during the course of the study. For patients with brain tumors, craniotomy or intracranial biopsy sites must be adequately healed; free of drainage or cellulitis, and the underlying cranioplasty must appear intact at the time of study enrollment Surgical procedure (including open biopsy, surgical resection, wound revision, or any other major surgery involving entry into a body cavity) or significant traumatic injury within 28 days prior to on-study date, or anticipation of need for major surgical procedure during the course of the study Major surgical procedure or significant traumatic injury within 14 days prior to first dose of study drug treatment on Study Day 1 of Period A, or anticipation of the need for major surgery during study treatment Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 0, anticipation of need for major surgical procedure during the course of the study; as an example, port placement or core biopsies are not considered major surgical procedures Patients who have had a major surgical procedure, open biopsy, or significant traumatic injury with poorly healed wound within 6 weeks prior to first dose of study drug; or anticipation of need for major surgical procedure during the course of the study (other than defined by protocol); or fine needle aspirations or core biopsies within 7 days prior to first dose of study drug Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 0, anticipation of need for major surgical procedure during the course of the study Invasive procedures defined as follows:\r\n* Major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to day 1 therapy\r\n* Anticipation of need for major surgical procedures during the course of the study\r\n* Core biopsy within 7 days prior to day 1 (D1) therapy Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 of FOLFIRI + bevacizumab initiation or anticipation of need for major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 of study drug (56 days for hepatectomy, open thoracotomy, major neurosurgery) or anticipation of need for major surgical procedure during the course of the study History of a major surgical procedure or a significant traumatic injury within 14 days prior to commencing treatment, or the anticipation of the need for a major surgical procedure during the course of the study. Major surgical procedure (including open biopsy, excluding central line intravenous (IV) and port-a-cath placement) within ? 14 days prior to initiating study treatment, or anticipation of the need for major surgery during the course of the study treatment Major surgical procedure or significant traumatic injury within 28 days before the first dose of study drug or anticipation of the need for major surgery during the course of study treatment. Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to Day 1 or anticipation of need for major surgical procedure during the course of the study Invasive procedures defined as follows:\r\n* Major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to day 1 therapy\r\n* Anticipation of need for major surgical procedures during the course of the study\r\n* Core biopsy within 7 days prior to day 1 therapy Patients who have a major surgical procedure, or significant traumatic injury within 28 days prior to the first date of treatment on this study, or anticipation of need for major surgical procedure during the course of the study; patients with placement of vascular access device or core biopsy within 7 days prior to the first date of treatment on this study Patients with invasive procedures or anticipation of invasive procedures within the following timeframes as defined below:\r\n* Major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to the first date of bevacizumab therapy (cycle 2)\r\n* Major surgical procedure anticipated during the course of the study\r\n* Core biopsy within 7 days prior to the first date of bevacizumab therapy (cycle 2) Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to study enrollment or anticipation of need for major surgical procedure during the course of the study This criterion applies only to the patients enrolled before August 29, 2011 and those enrolled after this date electing to receive bevacizumab; patients who have had a major surgical procedure, open biopsy, dental extractions or other dental surgery/procedure that results in an open wound, or significant traumatic injury within 28 days prior to the first date of treatment on this study, or anticipation of need for major surgical procedure during the course of the study; patients with placement of vascular access device or core biopsy within 7 days prior to the first date of treatment on this study No major surgical procedures, open biopsy or significant traumatic injury =< 28 days prior to registration or anticipation of need for elective or planned major surgical procedure during the study; core biopsy or other minor surgical procedures =< 7 days prior to registration Major surgical procedure or significant traumatic injury within 28 days prior to randomization or anticipation of the need for major surgery during the course of study treatment Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 0, or anticipated need for major surgical procedure during the course of the study, or fine needle aspirations or core biopsies within 7 days prior to day 0 Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to Day 1 or anticipation of need for major surgical procedure during course of the study. The subject had a major surgical procedure, substantial open biopsy, or significant traumatic experience within 28 days before the Day 1 visit, or anticipation of need for major surgical procedure during the course of the study. Surgical procedure (including open biopsy, surgical resection, wound revision, or any other major surgery involving entry into a body cavity) or significant traumatic injury within 28 days prior to study enrollment, or anticipation of need for major surgical procedure during the course of the study; minor surgical procedures including placement of a vascular access device, within 2 days of the first study treatment Major surgical procedure, open biopsy, or significant traumatic injury within 30 days prior to Cycle 1, Day 1 or anticipation of need for a major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to enrollment date, anticipation of need for major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to Day 0, anticipation of need for major surgical procedure during the course of the study; minor surgical procedures such as fine needle aspirations or core biopsies within 7 days prior to Day 0 Major surgical procedure, open biopsy, or significant traumatic injury =< 28 days prior to registration (=< 56 days for hepatectomy, open thoracotomy, major neurosurgery) or anticipation of need for major surgical procedure during the course of the study Patients who have a major surgical procedure, or significant traumatic injury within 28 days prior to the first date of treatment on this study, or anticipation of need for major surgical procedure during the course of the study; patients with placement of vascular access device or core biopsy within 7 days prior to the first date of treatment on this study Patients must not have experienced any major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to registration, or be anticipated to need a major surgical procedure during the course of the study; NOTE: the exception is craniotomy; patients with brain tumors who have undergone craniotomy or intracranial biopsy must be cleared by their neurosurgeon to participate at the time of registration Invasive procedures defined as follows:\r\n* Major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to day 1 therapy\r\n* Brain biopsy within 28 days prior to day 1 of therapy (wounds must be fully healed from brain biopsies performed more than 28 days prior to day 1 of therapy)\r\n* Anticipation of need for major surgical procedures during the course of the study\r\n* Core biopsy within 7 days prior to day 1 of therapy Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 or anticipation of need for major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day -3 or anticipation of need for major surgical procedure during the course of the study; (a major surgical procedure constitutes an invasive procedure which requires general anesthetic support, hospitalization, and supportive care such as laparotomy, laminectomy, etc.) Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 of treatment or anticipation of need for major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury other than craniotomy within 28 days prior to Day 1, anticipation of need for major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury within 4 weeks before enrollment or anticipation of need for major surgical procedure during the course of the study; subjects with limited metastatic disease that has been surgically resected may enter and begin study therapy 3 weeks after surgery and the bevacizumab containing portion of the regimen may begin no sooner than 4 weeks after surgery\r\n* If, during the course of the study, a subject progresses on therapy to the point that surgical resection is recommended, the subject should be discontinued from the study but is eligible for re-enrollment into the study after the surgical resection provided all inclusion/exclusion criteria are met Major surgical procedure, open biopsy (excluding skin cancer resection), or significant traumatic injury within 14 days of initiating study drug (unless the wound has healed) or anticipation of the need for major surgery during the study. Major surgical procedure, open biopsy, or significant traumatic injury, within 28 days prior to day 1, anticipation of need for major surgical procedure during the course of the study; (minor surgical procedures, fine needle aspirations or core biopsies within 7 days prior to day 1; bone marrow aspiration +/- biopsy is allowed) Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to Day 1 or anticipation of need for major surgical procedure during course of study Patients may not have had a major surgical procedure, open biopsy (excluding skin cancer resection, cutaneous/subcutaneous melanoma metastasis resection or biopsy or vascular access device insertion), or significant traumatic injury within 28 days prior to Day 1, or have an anticipated need for major surgical procedure or a planned elective surgical procedure during the course of the study. Patients with contraindications to anticoagulation therapy for deep venous thrombosis such as:\r\n* Patients on full treatment dose of anticoagulation such as those patients being treated for pulmonary embolus\r\n* Presence of central nervous system or brain metastases\r\n* Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1\r\n* Anticipation of need for major surgical procedure during the course of the study\r\n* Those patients that develop DVTs during the study will be treated with anticoagulants and in certain cases, will continue on the protocol Major surgical procedure or significant traumatic injury within 28 days prior to day 1 or anticipation of the need for major surgery during the course of study treatment Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to the first dose of study treatment or anticipation of need for major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to randomization, or anticipation of need for major surgical procedure during the course of the study Major surgical procedure or significant traumatic injury within 4 weeks prior to the first dose of study-drug treatment in Cycle 1, or anticipation of the need for major surgery during the course of study treatment Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to the first dose of study treatment or anticipation of need for major surgical procedure during the course of the study Major surgical procedure or significant traumatic injury within 28 days prior to\n randomization or anticipation of the need for major surgery during the course of\n study treatment Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to enrollment, or anticipation of need for major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to the first dose of study treatment or anticipation of need for major surgical procedure during the course of the study Major surgical procedure, open biopsy, or significant traumatic injury or anticipation of need for major surgical procedure during the course of the study; core biopsy or other minor surgical procedure, eg placement of a vascular access device, are excluded from this requirement Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to the first dose of study treatment or anticipation of need for major surgical procedure during the course of the study Major surgical procedure or significant traumatic injury within 28 days before enrollment or anticipation of the need for major surgery during the course of study treatment History of invasive procedures defined as follows: \r\n* Major surgical procedure, open biopsy, or significant traumatic injury =< 28 days prior to registration\r\n* Anticipation of need for major surgical procedures during the study\r\n* Core biopsy =< 7 days prior to registration Major surgical procedures, or significant traumatic injury =< 14 days prior to registration or anticipation of need for elective or planned major surgical procedure during the course of the study Patient who has undergone the following invasive procedures: Major surgical procedure, open biopsy or significant traumatic injury < 14 days prior to starting study drug or has not recovered from side effects of such therapy, anticipation of need for invasive surgical procedure during the course of the study, biopsy within 7 days prior to starting study drug Major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to commencing study treatment, or anticipation of need for a major surgical procedure during the course of the study; A major surgical procedure or significant traumatic injury within 28 days of beginning treatment, or anticipation of the need for major surgery during the course of the study; in addition, if a patient has not yet recovered from prior minor surgery (such as central venous access device or fine needle aspiration biopsy) Patients with or with anticipation of a non-study related invasive procedure defined as followed: major surgical procedure, open biopsy or significant traumatic injury within 28 days prior to the first date of bevacizumab; major non-study related surgical procedure anticipated during the course of the study; core biopsy within 7 days prior to first date of bevacizumab Major surgical procedure or significant traumatic injury within 14 days prior to first dose of study drug or anticipation of the need for major surgery during study treatment No excess risk of bleeding (any of the following):\r\n* Bleeding diathesis or coagulopathy\r\n* Thrombocytopenia\r\n* Major surgical procedure, open biopsy, or significant traumatic injury within the past 28 days or anticipation of need for major surgical procedure during the course of the study\r\n* Minor surgical procedures, stereotactic biopsy, fine needle aspiration, or core biopsy within the past 7 days Major surgical procedure, open biopsy, or significant traumatic injury within 28 days prior to day 1 or anticipation of need for major surgical procedure during the course of the study Major surgical procedure or significant traumatic injury within 4 weeks prior to initiation of study drug, or anticipation of need for major surgical procedure during the course of the study Has had a major surgical procedure, other than for HNC, or significant traumatic injury within 4 weeks prior to the initiation of RT; anticipation of need for major surgical procedure during the course of the study Major surgical procedure or significant traumatic injury within 4 weeks prior to first dose of study drug treatment in Cycle 1, or anticipation of the need for major surgery during the course of study treatment