title: Complete Response after Treatment with Neoadjuvant Chemoradiation with Prolonged Chemotherapy for Locally Advanced, Unresectable Adenocarcinoma of the Pancreas.
abstract: Surgery is the only chance for cure in pancreatic ductal adenocarcinoma. In unresectable, locally advanced pancreatic cancer (LAPC), the National Comprehensive Cancer Network (NCCN) suggests chemotherapy and consideration for radiation in cases of unresectable LAPC. Here we present a rare case of unresectable LAPC with a complete histopathological response after chemoradiation followed by surgical resection. A 54-year-old female presented to our clinic in December 2013 with complaints of abdominal pain and 30-pound weight loss. An MRI demonstrated a mass in the pancreatic body measuring 6.2 × 3.2 cm; biopsy revealed proven ductal adenocarcinoma. Due to splenic vein/artery and contiguous celiac artery encasement, she was deemed surgically unresectable. She was started on FOLFIRINOX therapy (three cycles), intensity modulated radiation to a dose of 54 Gy in 30 fractions concurrent with capecitabine, followed by FOLFIRI, and finally XELIRI. After 8 cycles of ongoing XELIRI completed in March 2015, restaging showed a remarkable decrease in tumor size, along with PET-CT revealing no FDG-avid uptake. She was reevaluated by surgery and taken for definitive resection. Histopathological evaluation demonstrated a complete R0 resection and no residual tumor. Based on this patient and literature review, this strategy demonstrates potential efficacy of neoadjuvant chemoradiation with prolonged chemotherapy, followed by surgery, which may improve outcomes in patients deemed previously unresectable.
authors.affiliation: Department of Medicine, Division of Hematology/Oncology, Drexel University College of Medicine, Philadelphia, PA 19102, USA.
authors.forename: Tiffany A
authors.initials: TA
authors.lastname: Pompa
authors.affiliation: Department of Surgery, Division of Surgical Oncology, Drexel University College of Medicine, Philadelphia, PA 19102, USA.
authors.forename: William F
authors.identifier: 0000-0002-6977-5221
authors.initials: WF
authors.lastname: Morano
authors.affiliation: Department of Medicine, Division of Hematology/Oncology, Drexel University College of Medicine, Philadelphia, PA 19102, USA.
authors.forename: Chetan
authors.initials: C
authors.lastname: Jeurkar
authors.affiliation: Department of Pathology & Laboratory Medicine, Drexel University College of Medicine, Philadelphia, PA 19102, USA.
authors.forename: Hui
authors.initials: H
authors.lastname: Li
authors.affiliation: Department of Pathology & Laboratory Medicine, Drexel University College of Medicine, Philadelphia, PA 19102, USA.
authors.forename: Suganthi
authors.initials: S
authors.lastname: Soundararajan
authors.affiliation: Department of Radiation Oncology, Drexel University College of Medicine, Philadelphia, PA 19102, USA.
authors.forename: Jaganmohan
authors.initials: J
authors.lastname: Poli
authors.affiliation: Department of Surgery, Division of Surgical Oncology, Drexel University College of Medicine, Philadelphia, PA 19102, USA.
authors.forename: Wilbur B
authors.identifier: 0000-0002-6422-9811
authors.initials: WB
authors.lastname: Bowne
authors.affiliation: Department of Medicine, Division of Hematology/Oncology, Drexel University College of Medicine, Philadelphia, PA 19102, USA.
authors.forename: Michael
authors.initials: M
authors.lastname: Styler