Gastrointestinal Oncology
Pancreatic Cancer
Manage pancreatic ductal adenocarcinoma by establishing histology when systemic therapy is planned, defining vascular anatomy and metastatic burden on pancreas-protocol imaging, and selecting surgery-first versus neoadjuvant treatment through multidisciplinary review of resectability and biologic risk.
Initial Assessment
Stage before committing to surgery or systemic therapy
The initial decision is whether disease is potentially curable by multimodality treatment or metastatic and managed primarily with systemic therapy.
Use high-resolution pancreas-protocol CT angiography as the principal preoperative study for local staging, vascular mapping, resectability assessment, and surgical planning; MRI is an alternative or complementary modality when needed for staging clarification. Review images in a pancreas-focused multidisciplinary conference before assigning resectability or scheduling resection. ASCO+1ASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work TogetherASCOExploring Perioperative Therapy in Pancreatic Cancer
Establish the diagnosis and stage with cross-sectional imaging plus tissue confirmation when neoadjuvant or palliative systemic therapy is planned. Imaging alone may establish a surgical pathway for a clearly resectable pancreatic mass, but treatment sequencing should be revisited if radiographic findings are equivocal, regional adenopathy is suspicious, or CA 19-9 is elevated. ASCOASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together
Use CA 19-9 as a baseline disease-burden and longitudinal monitoring adjunct, not as a screening or independent diagnostic test. A normal result does not exclude pancreatic ductal adenocarcinoma because some tumors do not secrete CA 19-9 in patients with Lewis antigen Le(a−b−). Interpret interval values with imaging-based response assessment rather than using marker change alone to declare progression or response. sciencescienceGenome-wide analyses of cell-free DNA for therapeutic monitoring of patients with pancreatic cancer
Review pancreas-protocol imaging for distant metastases before potentially curative surgery. ASCOASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together
Document arterial and portal-mesenteric venous tumor contact in the staging report because this changes the initial treatment sequence. ASCOASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together
Use RECIST 1.1 CT assessment as a current radiographic monitoring standard during systemic treatment; recognize that imaging can be difficult to interpret in patients receiving immunotherapy. sciencescienceGenome-wide analyses of cell-free DNA for therapeutic monitoring of patients with pancreatic cancer
Potentially Curative Disease
Sequence therapy for anatomically resectable disease
The key choice is surgery-first versus neoadjuvant treatment for patients with technically resectable disease.
For resectable pancreatic ductal adenocarcinoma, surgery-first followed by adjuvant chemotherapy remains a standard pathway. The intent is an R0 resection followed by postoperative systemic treatment; therefore, assess whether the patient can realistically complete multimodality therapy before choosing the sequence. ASCO+1ASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work TogetherASCOExploring Perioperative Therapy in Pancreatic Cancer
Use neoadjuvant chemotherapy selectively in resectable disease with high-risk biology or uncertain stage, particularly elevated CA 19-9, radiographically suspicious lymphadenopathy, or equivocal imaging findings. This approach may clarify disease trajectory before a major operation, but randomized evidence has not yet conclusively established a survival advantage over surgery-first treatment for all upfront-resectable tumors. ASCO+1ASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work TogetherWolters KluwerPancreatic Cancer—Advances in the Last 50 Years : World Journal of Surgery
After resection, use adjuvant combination chemotherapy when tolerable. Combination regimens including modified FOLFIRINOX and gemcitabine-capecitabine have improved disease-free and overall survival compared with gemcitabine in the postoperative setting. Wolters KluwerWolters KluwerPancreatic Cancer—Advances in the Last 50 Years : World Journal of Surgery
Refer all apparently resectable cases for review by pancreatic surgery, medical oncology, radiology, and radiation oncology before finalizing treatment order. Wolters Kluwer+1Wolters KluwerPancreatic Cancer—Advances in the Last 50 Years : World Journal of SurgeryASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together
Avoid interpreting a technically operable scan in isolation; elevated CA 19-9, suspicious nodes, and radiographic uncertainty are reasons to discuss preoperative systemic therapy. ASCOASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together
Plan adjuvant therapy before surgery, including postoperative recovery expectations and medical fitness for combination chemotherapy. Wolters KluwerWolters KluwerPancreatic Cancer—Advances in the Last 50 Years : World Journal of Surgery
Monitoring after surgery or during perioperative therapy
Monitor with serial clinical assessment, cross-sectional imaging, and CA 19-9 only when the tumor is a known secretor. CT-based RECIST 1.1 assessment remains a standard radiographic framework for response monitoring, while CA 19-9 has biologic limitations and should not replace imaging. sciencescienceGenome-wide analyses of cell-free DNA for therapeutic monitoring of patients with pancreatic cancer
Vascular Involvement
Use induction therapy before attempted resection in borderline-resectable disease
Vascular anatomy determines whether resection should be immediate, deferred after therapy, or not initially pursued.
Treat borderline-resectable pancreatic cancer with neoadjuvant chemotherapy, potentially followed by chemoradiotherapy, before attempting resection. This applies to limited arterial contact of 180° or less and to portal or superior mesenteric venous involvement that is reconstructable. ASCO+1ASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work TogetherASCOExploring Perioperative Therapy in Pancreatic Cancer
Reassess after neoadjuvant treatment with repeat pancreas-protocol imaging, clinical status, and tumor-marker trajectory when informative. Surgical exploration is appropriate only when the multidisciplinary team judges that an R0 resection is feasible, including vascular reconstruction when required. ASCOASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together
Manage locally advanced disease as unresectable at presentation when extensive vascular involvement precludes resection. Systemic therapy is the primary initial modality; radiotherapy may improve local control, while resection is reserved for selected patients with sufficient downstaging and favorable operative anatomy after treatment. ASCOASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together
Do not equate all venous involvement with unresectability; reconstructable portal vein or superior mesenteric vein involvement is included in the borderline-resectable category. ASCOASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together
Do not proceed directly to surgery for borderline-resectable disease solely because there is no distant metastasis. Neoadjuvant treatment is the recommended sequence. ASCO+1ASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work TogetherASCOExploring Perioperative Therapy in Pancreatic Cancer
Re-image after induction therapy before operative planning; response assessment is iterative rather than a one-time staging decision. ASCOASCOContemporary Multidisciplinary Treatment of Borderline-Resectable and Locally Advanced Pancreatic Adenocarcinoma | American Society of Clinical Oncology Educational Book
Systemic Management
Match systemic treatment intensity to stage and functional reserve
Combination cytotoxic therapy is central across disease stages, but its use must account for performance status and treatment toxicity.
For localized disease receiving perioperative treatment, multiagent cytotoxic chemotherapy is integrated with surgery rather than used as an alternative to curative-intent local therapy. Modified FOLFIRINOX is one commonly used combination regimen; full-dose FOLFIRINOX consists of oxaliplatin 85 mg/m², leucovorin 400 mg/m², irinotecan 180 mg/m², and fluorouracil 2,400 mg/m², with or without a fluorouracil bolus. Oxford Academic+1Oxford AcademicFOLFIRINOX as Initial Treatment for Localized Pancreatic ...Wolters KluwerPancreatic Cancer—Advances in the Last 50 Years : World Journal of Surgery
For metastatic pancreatic cancer, systemic therapy is the core treatment modality. Treatment selection must account for performance status because chemotherapy toxicity is clinically significant; contemporary trial and guideline frameworks commonly evaluate systemic treatment in patients with ECOG performance status 0-2. ASCOASCOTumor Treating Fields With Gemcitabine and Nab-Paclitaxel for Locally Advanced Pancreatic Adenocarcinoma: Randomized, Open-Label, Pivotal Phase III PANOVA-3 Study
Do not routinely expect benefit from immune-checkpoint therapy in unselected pancreatic ductal adenocarcinoma. Pancreatic cancer is largely resistant to immunotherapy, with reported response rates below 5%; investigational immune, cellular, and molecularly targeted approaches should not displace established stage-directed treatment outside appropriate clinical contexts. Oxford Academic+1Oxford AcademicKRAS-driven immune exclusion in pancreatic ductal ...Wolters KluwerRole of CAR-T cell therapy in pancreatic cancer:...
Use performance status as an explicit treatment-selection variable before choosing intensive multidrug chemotherapy. ASCOASCOTumor Treating Fields With Gemcitabine and Nab-Paclitaxel for Locally Advanced Pancreatic Adenocarcinoma: Randomized, Open-Label, Pivotal Phase III PANOVA-3 Study
Discuss molecularly directed approaches in multidisciplinary oncology care, particularly as targeted therapy development is increasingly focused on KRAS alterations, including KRAS G12C. Wolters KluwerWolters KluwerDevelopment of targeted therapy for pancreatic...
Use CT and CA 19-9, when secreted, to follow treatment; neither modality should be interpreted without clinical context. sciencescienceGenome-wide analyses of cell-free DNA for therapeutic monitoring of patients with pancreatic cancer
Response assessment
Assess treatment response with serial CT using RECIST 1.1 principles and correlate with symptoms, performance status, and CA 19-9 trends when applicable. CT findings can be misleading during immunotherapy because inflammatory infiltration may resemble progression, although immunotherapy has limited activity in unselected pancreatic ductal adenocarcinoma. science+1scienceGenome-wide analyses of cell-free DNA for therapeutic monitoring of patients with pancreatic cancerOxford AcademicKRAS-driven immune exclusion in pancreatic ductal ...
Care Delivery
Escalate complex anatomy and uncertain staging early
Treatment quality depends on repeated expert reassessment rather than a single imaging interpretation.
Refer patients with borderline-resectable or locally advanced disease to a center with pancreatic surgical, vascular reconstruction, medical oncology, radiation oncology, and dedicated radiology expertise. Focused review of pancreas-protocol CT can change resectability assignment, and multidisciplinary management is central to treatment planning across localized disease states. ASCO+1ASCOExploring Perioperative Therapy in Pancreatic CancerWolters KluwerPancreatic Cancer—Advances in the Last 50 Years : World Journal of Surgery
Reconsider surgery after induction therapy only through iterative multidisciplinary assessment of vascular anatomy, metastatic progression, treatment tolerance, and the prospect of an R0 resection. Approximately 20% of patients undergo surgery overall, underscoring the need to avoid nonbeneficial exploration in persistently unresectable disease. ASCOASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together
Use shared decision-making when choosing surgery-first, neoadjuvant, or nonsurgical treatment, explicitly discussing anatomic resectability, likelihood of completing multimodality therapy, performance status, toxicity burden, and the patient's goals. ESMO+1ESMOESMO Clinical Practice Guideline: Pancreatic CancerASCOTumor Treating Fields With Gemcitabine and Nab-Paclitaxel for Locally Advanced Pancreatic Adenocarcinoma: Randomized, Open-Label, Pivotal Phase III PANOVA-3 Study
Request dedicated re-review when an outside CT is not pancreas protocol or when arterial or venous involvement is uncertain. ASCO+1ASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work TogetherASCOExploring Perioperative Therapy in Pancreatic Cancer
Escalate high-risk resectable disease for preoperative oncology discussion rather than defaulting directly to surgery. ASCOASCOMultidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together
Reassess resectability after neoadjuvant treatment instead of relying on the initial staging label. ASCOASCOContemporary Multidisciplinary Treatment of Borderline-Resectable and Locally Advanced Pancreatic Adenocarcinoma | American Society of Clinical Oncology Educational Book
References
- European evidence-based guidelines on pancreatic cystic ... — gut.bmj.com · gut.bmj.com
- European evidence-based guidelines on pancreatic cystic neoplasms | Gut — gut.bmj.com · gut.bmj.com
- Multicenter randomized controlled trial of neoadjuvant ... — jitc.bmj.com · jitc.bmj.com
- Pancreatic Incidentalomas — egastroenterology.bmj.com · egastroenterology.bmj.com
- Abstracts — gut.bmj.com · gut.bmj.com
- British Society of Gastroenterology and UK-PSC guidelines ... — gut.bmj.com · gut.bmj.com
- Treatment of cholangiocarcinoma in patients with primary ... — egastroenterology.bmj.com · egastroenterology.bmj.com
- Genome-wide analyses of cell-free DNA for therapeutic monitoring of patients with pancreatic cancer — www.science.org · www.science.org
- Direct detection of early-stage cancers using circulating tumor DNA — www.science.org · www.science.org
- Treatment Strategy for Borderline Resectable... : Pancreas — journals.lww.com · journals.lww.com
- FOLFIRINOX as Initial Treatment for Localized Pancreatic ... — academic.oup.com · academic.oup.com
- Oligometastatic pancreatic cancer: current state of ... — academic.oup.com · academic.oup.com
- Cancer of the pancreas: ESMO Clinical Practice Guidelines for ... — academic.oup.com · academic.oup.com
- Pancreatic Cancer—Advances in the Last 50 Years : World Journal of Surgery — journals.lww.com · journals.lww.com
- Development of targeted therapy for pancreatic... — journals.lww.com · journals.lww.com
- KRAS-driven immune exclusion in pancreatic ductal ... — academic.oup.com · academic.oup.com
- Role of CAR-T cell therapy in pancreatic cancer:... — journals.lww.com · journals.lww.com
- ESMO Clinical Practice Guideline: Pancreatic Cancer — www.esmo.org · www.esmo.org
- Multidisciplinary Management of Resectable and Borderline Resectable Pancreatic Cancer: How We Work Together — dailynews.ascopubs.org · dailynews.ascopubs.org
- Exploring Perioperative Therapy in Pancreatic Cancer — dailynews.ascopubs.org · dailynews.ascopubs.org
- Contemporary Multidisciplinary Treatment of Borderline- ... — ascopubs.org · ascopubs.org
- ESMO/ASCO Recommendations for a Global Curriculum in ... — ascopubs.org · ascopubs.org
- Tumor Treating Fields With Gemcitabine and Nab-Paclitaxel for Locally Advanced Pancreatic Adenocarcinoma: Randomized, Open-Label, Pivotal Phase III PANOVA-3 Study — ascopubs.org · ascopubs.org
- Contemporary Multidisciplinary Treatment of Borderline-Resectable and Locally Advanced Pancreatic Adenocarcinoma | American Society of Clinical Oncology Educational Book — ascopubs.org · ascopubs.org