Gemcitabine/Nab-Paclitaxel With HIGRT in Resectable Pancreatic Cancer

Inclusion Criteria: 1. Patient has signed informed consent and is willing to comply with the protocol 2. Histologically or cytologically proven adenocarcinoma of the pancreas (within the last 90 days) 3. Either resectable or borderline resectable as determined on staging imaging (as defined by National Comprehensive Cancer Network \[NCCN\]) 4. Patient is 18 years or older 5. Karnofsky performance status 70 or greater 6. The ANC count ≥ 1500, the platelet count ≥ 100,000 and hemoglobin ≥ 9g/dL 7. Laboratory values meet the following constraints: Bilirubin less than or equal to 2 mg/dL; AST and ALT less than or equal to 3 x ULN (stenting to improve biliary obstruction is permitted) 8. No evidence of metastatic disease based on imaging of the chest, abdomen and pelvis. Exclusion Criteria: 1. Metastatic disease on pretreatment imaging 2. Prior systemic therapy 3. Prior abdominal radiation. Any prior radiation must be approved by the Radiation Oncology PI 4. Previous treatment for pancreatic cancer 5. Patients with any serious/poorly controlled medical or psychological conditions that would be exacerbated by treatment, would complicate protocol compliance 6. Pregnant or lactating. Adequate birth control must be used if of child bearing potential per institutional policy. Negative pregnancy test in female patients of child-bearing potential per institutional policy. Post-menopausal women must have had amenorrhea for at least 18 months to be considered non-child bearing 7. Clinically significant peripheral vascular disease 8. Presence of active or chronic infection 9. Clinically significant atherosclerotic cardiovascular disease including patients with New York Heart Class II/III/IV CHF, ventricular arrhythmias requiring medication, myocardial infarction, cerebrovascular accident, transient ischemic attack, coronary artery bypass grafting, angioplasty, cardiac or other vascular stenting within the past 6 months 10. History of abdominal fistula, gastrointestinal perforation, intra-abdominal abscess within six months prior to treatment start 11. History of collagen vascular disease or inflammatory bowel disease (Crohn's or ulcerative colitis) 12. Current grade 2 or higher peripheral neuropathy 13. Anticoagulation with warfarin 14. History of arterial thromboembolic events or symptomatic pulmonary embolism within the past 6 months 15. Active bleeding diathesis or history of major bleeding, CNS bleeding, or significant hemoptysis within the past 6 months